bluuebunny/crossref_metadata_2025 huggingface dataset:
Adaptive potential of maritime pine under contrasting environments
Authors: Alía Ricardo , Climent Jose , Santos-del-Blanco Luis , Gonzalez-Arrojo Amelia , Feito Isabel , Grivet Delphine , Majada Juan
Published: January 2024

Background

Predicting the adaptability of forest tree populations under future climates requires a better knowledge of both the adaptive significance and evolvability of measurable key traits. Phenotypic plasticity, standing genetic variation and degree of phenotypic integration shape the actual and future population genetic structure, but empirical estimations in forest tree species are still extremely scarce. We analysed 11 maritime pine populations covering the distribution range of the species (119 families and 8 trees/family, ca. 1300 trees) in a common garden experiment planted at two sites with contrasting productivity. We used plant height as a surrogate of fitness and measured five traits (mean and plasticity of carbon isotope discrimination, specific leaf area, needle biomass, Phenology growth index) related to four different strategies (acquisitive economics, photosynthetic organ size, growth allocation and avoidance of water stress).

Results

Estimated values of additive genetic variation would allow adaptation of the populations to future environmental conditions. Overall phenotypic integration and selection gradients were higher at the high productivity site, while phenotypic integration within populations was higher at the low productivity site. Response to selection was related mainly to photosynthetic organ size and drought-avoidance mechanisms rather than to water use efficiency. Phenotypic plasticity of water use efficiency could be maladaptive, resulting from selection for height growth.

Conclusions

Contrary to the expectations in a drought tolerant species, our study suggests that variation in traits related to photosynthetic organ size and acquisitive investment of resources drive phenotypic selection across and within maritime pine populations. Both genetic variation and evolvability of key adaptive traits were considerably high, including plasticity of water use efficiency. These characteristics would enable a relatively fast micro-evolution of populations in response to the ongoing climate changes. Moreover, differentiation among populations in the studied traits would increase under the expected more productive future Atlantic conditions.
General practice staff and patient experiences of a multicomponent intervention for people at high risk of poor health outcomes: a qualitative study
Authors: Javanparast Sara , Roeger Leigh , Reed Richard L.
Published: January 2024

Background

This study reports the experiences of general practice staff and patients at high risk of poor health outcomes who took part in a clustered randomised controlled trial of a multicomponent general practice intervention. The intervention comprised patient enrolment to a preferred General Practitioner (GP) to promote continuity of care, access to longer GP appointments, and timely general practice follow-up after hospital care episodes. The aims of the study were to better understand participant’s (practice staff and patients) perspectives of the intervention, their views on whether the intervention had improved general practice services, reduced hospital admissions and finally whether they believed the intervention would be sustainable after the trial had completed.

Methods

A qualitative study design with semi-structured interviews was employed. The practice staff sample was drawn from both the control and intervention groups. The patient sample was drawn from those who had expressed an interest in taking part in an interview during the trial and who had also experienced a recent hospital care episode.

Results

Interviews were conducted with 41 practice staff and 45 patients. Practice staff and patients expressed support for the value of appointments with a regular GP and having sufficient time in appointments for the provision of comprehensive care. There were mixed views with respect to the extent to which the intervention had improved services. The positive changes reported were related to services being provided in a more proactive, thorough, and systematic manner with a greater emphasis on team based care involving the Practice Nurse. Patients nominated after hours care and financial considerations as the key reasons for seeking hospital care. Practice staff noted that the intervention would be difficult to sustain financially in the absence of additional funding.

Conclusions

The multicomponent intervention was supported by practice staff and patients and some patients perceived that it had led to improvements in care.
Growth development of children and adolescents with inflammatory bowel disease in the period 2000–2014 based on data of the Saxon pediatric IBD registry: a population-based study
Authors: Zhou Xueming , Kern Ivana , Rothe Ulrike , Schoffer Olaf , Weidner Jens , Richter Thomas , Laass Martin W. , Kugler Joachim , Manuwald Ulf
Published: January 2024

Background

The incidence of inflammatory bowel disease (IBD) in children is on the increase worldwide. Growth disorders are common in pediatric patients with inflammatory bowel disease. The aim of this paper is to investigate anthropometric indicators, including height and weight in children with inflammatory bowel disease in Saxony, one of the German federal states, and to evaluate growth trends in patients by comparing their height and weight with that of healthy children in Germany.

Methods

In Saxony, all children and adolescents with IBD were registered in the Saxon Pediatric IBD Registry from 2000 to 2014. The data used are therefore based on a total area-wide survey over 15 years. For this study, 421 datasets of children and adolescents aged 0–14 years with Crohn’s disease (CD) (n = 291) or ulcerative colitis (UC) (n = 130) were analyzed.

Z-score and percentile calculations were used to compare differences between IBD patients and the general population.

Results

The children with CD or UC (both sexes) had a significant lower weight at diagnosis (the mean weight z-score had negative values) versus the general population. The weight values lay mostly below P50 (the 50th percentile, median), more precisely, mostly between P10 and P50 of the body weight child growth curve for corresponding sexes (KiGGS 2003–2006).

The height values of both sexes at diagnosis lay also mostly below P50 (the 50th percentile, median) of the child body growth curve for corresponding sexes (KiGGS 2003–2006), i.e. the mean height z-score was negative. But only the children with CD had a significant lower height, more precisely, mostly between P25 and P50 versus the general population (KIGGS). For children with UC the difference was not significant.

Conclusion

In pediatric patients with IBD the possibility of growth disturbance, mainly in the form of weight retardation, is very probable.
Esophageal cancer: a twenty-four-year experience at a tertiary care center with an evaluation of the prognostic significance of the neutrophil-lymphocyte ratio
Authors: Mahmoud Walaa , Hassoun Lara , Kerbage Anthony , Mukherji Deborah , Shamseddine Ali , Tamraz Sally , Hakim Ayman , Barada Kassem
Published: January 2024

Background

A high neutrophil-lymphocyte ratio (NLR) may be associated with worse survival in esophageal cancer (EC). Our aims were to describe the demographic and clinical data of EC in a tertiary referral center in Lebanon and to determine the prognostic value of NLR.

Methods

A retrospective cohort study based on chart review of patients diagnosed with EC was conducted at the American University of Beirut Medical Center (AUBMC). The demographic characteristics, clinical presentation and outcomes were described and compared between squamous cell carcinomas (ESCC) and adenocarcinomas (EAC). Data about esophageal cancer incidence were obtained from the National Cancer Registry, the Ministry of Public Health and GLOBOCAN 2020. Cox regression analysis was performed to determine whether the NLR is an independent predictor of survival, using variables based on clinical knowledge and previously established data.

Results

110 patients were diagnosed with EC, which was the least common among other gastrointestinal malignancies. Our follow up rates reached 86.4%. The median survival was 9 months (IQR 3–25.5.) and was comparable between ESCC (median of 7 months, IQR 2–25) and EAC (median of 9 months, IQR 3–26.3), p = 0.803. Advanced stage was associated with a worse prognosis (p = 0.037). The mean NLR(±SD) was 5.20 ± 6.8, with no significant difference between EAC and ESCC (4.5 ± 3.4 vs. 5.9 ± 9.2, p = 0.420) or between early or advanced stages (5.4 ± 8.1 vs. 4.7 ± 6.8, p = 0.732). The area under the curve for the NLR was 0.560 (95% CI: 0.374–0.746, p = 0.488). After adjusting for age, gender, TNM staging and grading, cox regression analysis showed that an increased NLR was a significant predictor of mortality, with an adjusted hazard ratio of 1.095 (p = 0.011).

Conclusion

EC is quite uncommon in Lebanon despite a high prevalence of smoking and obesity. Advanced stage and high NLR were associated with a negative prognostic value.
Social support and cognitive activity and their associations with incident cognitive impairment in cognitively normal older adults
Authors: Ma Tianpei , Liao Jiaqiang , Ye Yuguo , Li Jiayuan
Published: January 2024

Objectives

To explore the associations of social support, and cognitive activity with cognitive impairment incidence, and further examine the mediation effect of cognitive activity on the association between social support and cognitive impairment incidence based on a nationwide elderly Chinese cohort.

Methods

We collected the participants from an ongoing cohort of the Chinese Longitudinal Healthy Longevity Survey (CLHLS). A total of 9394 older adults aged 65 or more years and free of cognitive impairment who participated in the CLHLS between 2008 and 2018 were included. The information on social support and cognitive activity was collected through a questionnaire. The incident cognitive impairment cases were identified through the Mini-Mental State Examination scale (MMSE). Cox proportional hazard regression models were conducted to calculate the hazard ratios (HRs) and 95% confidence interval (CI) of social support and cognitive activity associated with cognitive impairment. We used casual mediation models to assess the indirect association of cognitive activities underlying the association between social support and cognitive impairment.

Results

The adjusted HRs (95% CI) of incident cognitive impairment were 0.956 (0.932 to 0.980), and 0.895 (0.859 to 0.933) associated with per 1 score increase in social support and cognitive activity score, respectively. Better adherence to social support was associated with a higher cognitive activity score (adjusted β = 0.046, 95% CI[0.032–0.060]). The baseline cognitive activity, as well as the mean cognitive activity at baseline and during the first follow-up wave, mediate the association between social support and the incidence of cognitive impairment, accounting for 11.4% and 12.6% of the total association, respectively. The participants who were aged 80 years or older, or those with mild daily functional limitations gained more benefits in the development of cognitive activity related to social support, leading to a reduction in the risks of cognitive impairment.

Conclusion

The results of this nationwide cohort provide consistent evidence linking social support, and cognitive activity to reduced risk of subsequent cognitive impairment incidence. These findings provide additional evidence to inform the social strategies to prevent cognitive impairment incidence in elderly people.
Multi-organ dysfunction and outcomes in pregnancy associated COVID-19 infection – descriptive review of pathological findings
Authors: Turdybekova Ya.G. , Kopobayeva I.L. , Turmukhambetova A. A. , Kamyshanskiy Y.K.
Published: January 2024

Objective(s)

Comparative clinical and morphological characterization of lesions of the vascular and nervous system in cases of maternal death associated with COVID-19.

Study design

The study included autopsy in 12 cases of maternal death with a positive intravital result for SARS-CoV-2 by reverse transcription polymerase chain reaction. For histopathology, tissue samples were taken from the internal organs of each patient. Pieces of organs were fixed and stained according to the standard protocol. The relative number of microvessels with vasculitis and fibers of the peripheral nervous system with infiltration by immune cells was studied. All morphological changes were classified depending on the severity of the damage.

Results

The average age of patients with a fatal outcome was 35 ± 4.4 years. Time to death after onset of symptoms averaged 16 ± 4.4 days. Dystrophic lesions (necrosis and apoptosis) of the villous and extravillous trophoblast and decidual tissue were observed in the studied placentas. Histopathological signs of mild and severe lesions of the peripheral nervous system in the organs of the gastrointestinal tract were detected in 2 (16.7%) and 10 (83.3%) cases, respectively, in the myocardium in 4 (33.3%) and 8 (66.7%) cases. Histopathological signs of severe damage to the microvascular bed in the organs of the gastrointestinal tract were registered in 9 (75%) cases.

Conclusion(s)

The main clinical feature of this cohort was that death occurred in a long-term period, in most cases with a negative PCR. The histopathological pattern was a non-acute injury with an immune component of the microvascular bed and the autonomic nervous system with predominant damage to the myocardium and intestines.

What does this study add to the clinical work

This study makes it possible to even better study the immunopathological profile in organs and tissues in pregnant women with a fatal outcome when affected by a viral infection, in particular Covid-19. This knowledge can be used when humanity encounters other viral pandemics in the future.
Fronto-temporal cortical grey matter thickness and surface area in the at-risk mental state and recent-onset schizophrenia: a magnetic resonance imaging study
Authors: Rasser Paul E. , Ehlkes Tim , Schall Ulrich
Published: January 2024

Background

Studies to date examining cortical thickness and surface area in young individuals At Risk Mental State (ARMS) of developing psychosis have revealed inconsistent findings, either reporting increased, decreased or no differences compared to mentally healthy individuals. The inconsistencies may be attributed to small sample sizes, varying age ranges, different ARMS identification criteria, lack of control for recreational substance use and antipsychotic pharmacotherapy, as well as different methods for deriving morphological brain measures.

Methods

A surfaced-based approach was employed to calculate fronto-temporal cortical grey matter thickness and surface area derived from magnetic resonance imaging (MRI) data collected from 44 young antipsychotic-naïve ARMS individuals, 19 young people with recent onset schizophrenia, and 36 age-matched healthy volunteers. We conducted group comparisons of the morphological measures and explored their association with symptom severity, global and socio-occupational function levels, and the degree of alcohol and cannabis use in the ARMS group.

Results

Grey matter thickness and surface areas in ARMS individuals did not significantly differ from their age-matched healthy counterparts. However, reduced left-frontal grey matter thickness was correlated with greater symptom severity and lower function levels; the latter being also correlated with smaller left-frontal surface areas. ARMS individuals with more severe symptoms showed greater similarities to the recent onset schizophrenia group. The morphological measures in ARMS did not correlate with the lifetime level of alcohol or cannabis use.

Conclusions

Our findings suggest that a decline in function levels and worsening mental state are associated with morphological changes in the left frontal cortex in ARMS but to a lesser extent than those seen in recent onset schizophrenia. Alcohol and cannabis use did not confound these findings. However, the cross-sectional nature of our study limits our ability to draw conclusions about the potential progressive nature of these morphological changes in ARMS.
Effectiveness of theory-based educational interventions of promoting oral health among elementary school students
Authors: Shirahmadi Samane , Bashirian Saeed , Soltanian Ali Reza , Karimi-shahanjarini Akram , Vahdatinia Farshid
Published: January 2024

Background

The aim of the present study was to determine the effect of oral health education programs on the oral health of primary school students.

Methods

In this randomized controlled trial study, 190 elementary fifth-grade female students were chosen using the multistage cluster sampling method. In this study, the Plaque Index (PI), Simplified Oral Hygiene Index (OHI-S), Community Periodontal Index (CPI), tooth brushing using fluoride toothpaste, dental flossing frequency and factors affecting them were determined according to social cognitive theory (SCT). Interventions were implemented using the play method and with the help of three pamphlets, five posters, a celebration of oral health, and the creation of a Telegram group. Data were analyzed using descriptive statistics indexes, t tests, paired sample t tests, chi-square tests, and Pearson correlation tests.

Results

The results showed that 3 months after the intervention, compared to before the intervention, the percentage of participants in the intervention group who brushed their teeth twice or more per day increased by 48.5%, and the percentage of participants who used dental floss at least once per day increased by 64.2%. The rate of gum bleeding decreased by 6.3%. The good OHI-S rate increased by 44.4%. Dental plaque decreased by 38.1%.

Conclusion

The results demonstrated that a gamification design can be effective and useful in promoting the oral health of students.

Trial registration

registration timing: retrospective, registration date: 18/10/2022, registration number: IRCT20141128020129N2.
Health challenges and facilitators of arbaeen pilgrimage: a scoping review
Authors: Moulaei Khadijeh , Bastaminejad Saiyad , Haghdoost AliAkbar
Published: January 2024

Background

The Arbaeen Pilgrimage, a momentous religious journey drawing millions of participants annually, presents a profound spiritual experience. However, amidst its significance lie various health challenges that pilgrims encounter along the way. Addressing these challenges is vital to ensure the well-being of participants and the success of this extraordinary event. In light of this, the aim of this study is to examine the health challenges of the Arbaeen Pilgrimage, identify facilitators for solving these challenges, and propose effective solutions to enhance the overall pilgrimage experience for all involved.

Methods

The scoping review was performed by searching databases such as Web of Science, PubMed, Scopus, and Google Scholar search engine with a focus on the keywords “Arbaeen”, “Arbaeen walk” and “Arbaeen pilgrimage”. The search was not constrained by a specific time limitation in the databases. Data from studies were extracted using a data extraction form consisting of 9 fields. The selection of articles and data extraction were carried out by two researchers, adhering to predefined inclusion and exclusion criteria. Any disagreements were resolved through consultation with a third researcher. The study was reported following the PRISMA checklist.

Results

Out of 1619 retrieved articles, 9 were finally included in this study. All these studies were published since 2017 and conducted in Iraq and Iran. In total, 101 health challenges and facilitators were identified, comprising 61 challenges and 40 facilitators. The challenges with the highest frequency included “infectious disease outbreaks” (n = 7), “Poor management of Iraq’s health system in waste collection and disposal” (n = 4), “Rising incidence of walking injuries among pilgrims (e.g., burns, fractures, lacerations, wounds, and blisters)” (n = 4), and “Insufficient knowledge about personal and public health“(n = 4). The most important facilitators to solving the challenges were: “Customized pilgrim training and addressing their issues, with a focus on vital practices” (n = 6), “Coordinating mass gathering stakeholders, including health ministries and organizations” (n = 4), and “Implementing an agile syndromic system for rapid surveillance and identification of contagious illnesses” (n = 4).

Conclusion

The article discusses health challenges faced during the Arbaeen Pilgrimage and proposes facilitative measures for participants’ well-being. It emphasizes the significance of addressing health risks in large gatherings and suggests incorporating measures for a safer and enjoyable pilgrimage experience. Overall, understanding and managing these health factors can lead to a successful execution of the Arbaeen Pilgrimage, benefiting the physical and spiritual well-being of all involved.
Novel subgroups of obesity and their association with outcomes: a data-driven cluster analysis
Authors: Takeshita Saki , Nishioka Yuichi , Tamaki Yuko , Kamitani Fumika , Mohri Takako , Nakajima Hiroki , Kurematsu Yukako , Okada Sadanori , Myojin Tomoya , Noda Tatsuya , Imamura Tomoaki , Takahashi Yutaka
Published: January 2024

Background

Obesity is associated with various complications and decreased life expectancy, and substantial heterogeneity in complications and outcomes has been observed. However, the subgroups of obesity have not yet been clearly defined. This study aimed to identify the subgroups of obesity especially those for target of interventions by cluster analysis.

Methods

In this study, an unsupervised, data-driven cluster analysis of 9,494 individuals with obesity (body mass index ≥ 35 kg/m2) was performed using the data of ICD-10, drug, and medical procedure from the healthcare claims database. The prevalence and clinical characteristics of the complications such as diabetes in each cluster were evaluated using the prescription records. Additionally, renal and life prognoses were compared among the clusters.

Results

We identified seven clusters characterised by different combinations of complications and several complications were observed exclusively in each cluster. Notably, the poorest prognosis was observed in individuals who rarely visited a hospital after being diagnosed with obesity, followed by those with cardiovascular complications and diabetes.

Conclusions

In this study, we identified seven subgroups of individuals with obesity using population-based data-driven cluster analysis. We clearly demonstrated important target subgroups for intervention as well as a metabolically healthy obesity group.
No correlation to collagen synthesis disorders in patients with Perthes’ disease: a nationwide Swedish register study of 3488 patients
Authors: Lindblad M , Bladh M , Björnsson-Hallgren H , Sydsjö G , Johansson T
Published: January 2024

Background

Mutations of the COL2A1 gene have been identified in patients with Perthes’ disease. Several studies have hypothesised a connection between Perthes’ disease and collagen synthesis disorders, especially COL2A1-related disorders, but no large studies on the subject have been made. The aim of this study was thus to discover if there is a connection between patients presenting with Perthes’ disease, and collagen synthesis disorders. A secondary aim was to see if the children with both disorders had less optimal birth characteristics than the rest.

Methods

Swedish national registers were used to collect data on children diagnosed with Perthes’ disease or a collagen synthesis disorder. These registers include all births in Sweden, and data from both outpatient and in-hospital visits. A wide range of data is included besides diagnoses. All children with follow-up data to the age of 15 years were included. Pearson’s chi-square was used for analysis. Statistical significance was further analysed with Fisher’s Exact Test.

Results

In total, 3488 children with either diagnosis were included. 1620 children had only Perthes disease, while 1808 children had only a collagen synthesis disorder. Five children were found to have both the diagnosis Perthes’ disease and a collagen synthesis disorder. One child was large for their gestational age and none of the children had a low birthweight. Two of the children were moderately preterm.

Conclusions

The distinct lack of overlap in such a large body of material raises doubt about a connection between the presentation of Perthes’ disease and collagen synthesis disorders, either COL2A1-related or not. We could not find an overrepresentation of less optimal birth characteristics either.
Cross cultural adaptation, reliability and validity of the Persian version of the university of Wisconsin running injury and recovery index
Authors: Sheikhi Bahram , Akbari Hadi , Heiderscheit Bryan
Published: January 2024

Background

The University of Wisconsin Running Injury and Recovery Index (UWRI) was developed to evaluate running ability after a running-related injury. The aim of this study was to translate and cross-culturally adapt the UWRI into Persian (UWRI-Persian) and to investigate its psychometric properties in patients with a running-related injury.

Methods

The UWRI-Persian was translated using the Beaton guidelines. One hundred and seventy-three native Persian patients with running-related injuries were participated in the study. The exploratory factor analysis was carried out using the principal component analysis method with Varimax rotation. The construct validity of the UWRI-Persian was evaluated using the Pearson correlation with the pain self-efficacy questionnaire (PSEQ), Tampa scale for Kinesiophobia (TKS), and visual analogue scale (VAS). Test-retest reliability was tested among 64 patients who completed the form again after seven days.

Results

The UWRI-Persian showed excellent internal consistency for total score (α = 0.966). An excellent internal consistency (α = 0.922) was shown for psychological response and good internal consistency (α = 0.887) for running progression. The interclass correlation coefficient for the UWRI-Persian total scores was 0.965 (95% CI, 0.942 to 0.979), indicating high intra-rater reliability. The UWRI-Persian showed a moderate correlation with the PSEQ (r = 0.425) and the TSK (r = 0.457) and a weak correlation with the VAS (r = 0.187). These findings suggest no floor or ceiling effects.

Conclusions

The UWRI is a reliable and valid tool for Persian-speaking patients with running-related injuries. The UWRI was successfully translated from English to Persian and demonstrated good to excellent internal consistency, validity and reliability with no floor or ceiling effects.
Faculty of sports science students, physical education teachers, and athletes’ level of knowledge and attitude about mouthguards
Authors: Soğukpınar Önsüren Aslı , Eroğlu Hüseyin , Aksoy Cemil
Published: January 2024

Objectives

Traumatic dental injury occurs during sports competitions, training, and practice and can be prevented by the use of mouthguards. For this reason, this study aimed to evaluate the knowledge and attitudes of sports science faculty students, physical education teachers, and athletes about mouthguards.

Methods

Five hundred thirty-two participants were reached via social media. In the questionnaire consisting of 20 questions, questions about the sociodemographic characteristics of the participants were asked in part 1, and questions about their level of knowledge and attitudes about the mouthguards were asked in part 2. Descriptive statistical analysis and a chi-square test were used to evaluate the data.

Results

The number of people who think that mouthguards protect the athlete from traumatic dental injury is 381 (71.6%). The number of people who think that mouthguards affect the performance of the athlete is positively 228 (42.9%). To protect against traumatic dental injury, 51.48% of the participants preferred the custom-made; 39.3% of them preferred the boil-bite; 33.22% of them preferred the standard/stock type mouth guard; and 22.96% of them preferred the helmet, and 18.26% of them preferred the face mask.

Conclusions

The knowledge and attitude of sports science faculty students, physical education teachers, and athletes are low about mouthguards. Since these people who are engaged in sports have a high exposure to traumatic dental injuries, education should be given to increase their awareness about mouthguards.
Experiences of nursing students who are victims of dating violence: a qualitative study
Authors: Barroso-Corroto Esperanza , Laredo-Aguilera José Alberto , Cobo-Cuenca Ana Isabel , Carmona-Torres Juan Manuel
Published: January 2024

Background

Dating Violence (DV) is a type of Intimate Partner Violence that occurs between young people, and they are those behaviours that cause physical, sexual or psychological harm.

Objective/aim

To know the experience of university students around dating violence.

Design and methods

Qualitative study with a phenomenological approach was conducted through semi-structured individual interviews with nursing students’ victims of dating violence with the same starting categories. The public involve in this study were nursing students who freely agreed to participate in the interviews and gave their informed consent.

Results

Eleven nursing students participated, the sample was heterogeneous for gender and sexual diversity. Obtaining results about their experience with dating violence, manifestations of dating violence and cyber violence in their relationships, consequences, formal and informal help seeking and proposals for help as nursing students, among others.

Conclusion

Dating violence is a serious problem that seriously affects the victims and requires the creation of prevention programs. The experiences of university students about DV are mainly painful experiences, with serious consequences for those involved, needing help from their close environment and professional help to overcome the problems generated by their partners.

Implications

It is important due to the high prevalence of this phenomenon, also among nursing students, to provide key points to future health professionals and victims of dating violence on the correct way to act against violence due to lack of knowledge on the subject. This study clarifies the experiences of dating violence and how to offer help to victims from the informal and professional sphere.

Trial registration

This study was approved by the Ethics Committee of Clinical Research of the Health Area of Talavera de la Reina (Toledo) with code 01/2021.
Driving the implementation of hospital examination reservation system through hospital management
Authors: Wang Qi , Ma Yingjie , Mao Jian , Song Jingyan , Xiao Mingzhao , Zhao Qinghua , Yuan Fang , Hu Lei
Published: January 2024

Background

Hospital Examination Reservation System (HERS) was designed for reducing appointment examination waiting time and enhancing patients’ medical satisfaction in China, but implementing HERS would encounter many difficulties. This study would investigate the factors that influence patients’ utilization of HERS through UTAUT2, and provide valuable insights for hospital managements to drive the effective implementation of HERS. It is helpful for improving patients’ medical satisfaction.

Methods

We conducted a survey through the Sojump platform, targeting patients were who have already used HERS. We collected questionnaire information related to factors behavior intention, performance expectancy, and effort expectancy. Subsequently, we employed a structural equation model to analyze the factors influencing patients’ utilization of HERS.

Results

A total of 394 valid questionnaires were collected. Habit was the main direct positive factor influencing the behavioral intention of HERS (β = 0.593; 95%CI: 0.072, 1.944; P = 0.002), followed by patient innovation (β = 0.269; 95%CI: 0.002, 0.443; P < 0.001), effort expectancy (β = 0.239; 95%CI: -0.022, 0.478; P = 0.048). Patient innovation and facilitating conditions also have an indirect effect on behavioral intention. Perceived privacy exposure has a significantly negative effect on behavioral intention (β=-0.138; 95%CI: -0.225, -0.047; P < 0.001). The above variables explained 56.7% of the variation in behavioral intention.

Conclusions

When HERS is implemented in hospitals, managements should arrange volunteers to guide patients to bring up the habit and solve the using difficulties, and managements could invite patients with high innovation to recommend HERS to others, what’s more, it is a valid way to retain the old form of appointment to pass the transition period to the new system. HERS utilization and patients’ medical satisfaction will be enhanced through the guidance of hospital management means.
The synergism of cytosolic acidosis and reduced NAD+/NADH ratio is responsible for lactic acidosis-induced vascular smooth muscle cell impairment in sepsis
Authors: Terpe Philipp , Ruhs Stefanie , Dubourg Virginie , Bucher Michael , Gekle Michael
Published: January 2024

Background

During sepsis, serve vascular dysfunctions lead to life-threatening multiple organ failure, due to vascular smooth muscle cells (VSMC) impairments, resulting in vasoplegia, hypotension and hypoperfusion. In addition, septic patients have an altered cell metabolism that leads to lactic acidosis. Septic patients suffering from lactic acidosis have a high risk of mortality. In addition, septic survivors are at risk of secondary vascular disease. The underlying mechanisms of whether and how lactic acidosis leads to the changes in VSMCs is not well understood. The aim of this study was to comprehensively investigate the effect of lactic acidosis on VSMCs and additionally compare the effects with those induced by pure acidosis and sodium lactate.

Methods

Primary human aortic smooth muscle cells (HAoSMCs) were treated for 48 h with lactic acidosis (LA_pH 6.8), hydrochloric acid (HCl_pH 6.8), sodium lactate (Na+-lactate_pH 7.4) and the respective controls (ctrl._pH 7.4; hyperosmolarity control: mannitol_pH 7.4) and comparatively analyzed for changes in (i) transcriptome, (ii) energy metabolism, and (iii) phenotype.

Results

Both types of acidosis led to comparable and sustained intracellular acidification without affecting cell viability. RNA sequencing and detailed transcriptome analysis revealed more significant changes for lactic acidosis than for hydrochloric acidosis, with lactate being almost ineffective, suggesting qualitative and quantitative synergism of acidosis and lactate. Bioinformatic predictions in energy metabolism and phenotype were confirmed experimentally. Lactic acidosis resulted in strong inhibition of glycolysis, glutaminolysis, and altered mitochondrial respiration which reduced cellular ATP content, likely due to increased TXNIP expression and altered NAD+/NADH ratio. Hydrochloric acidosis induced significantly smaller effects without changing the NAD+/NADH ratio, with the ATP content remaining constant. These metabolic changes led to osteo-/chondrogenic/senescent transdifferentiation of VSMCs, with the effect being more pronounced in lactic acidosis than in pure acidosis.

Conclusions

Overall, lactic acidosis exerted a much stronger effect on energy metabolism than pure acidosis, whereas lactate had almost no effect, reflecting the qualitative and quantitative synergism of acidosis and lactate. As a consequence, lactic acidosis may lead to acute functional impairments of VSMC, sustained perturbations of the transcriptome and cellular dedifferentiation. Moreover, these effects may contribute to the acute and prolonged vascular pathomechanisms in septic patients.
Remnant cholesterol and the risk of aortic valve calcium progression: insights from the MESA study
Authors: Li Ze-Hua , Hao Qing-Yun , Zeng Yu-Hong , Guo Jing-Bin , Li Shi-Chao , Gao Jing-Wei , Yang Ping-Zhen
Published: January 2024

Background

Remnant cholesterol (RC) is implicated in the risk of cardiovascular disease. However, comprehensive population-based studies elucidating its association with aortic valve calcium (AVC) progression are limited, rendering its precise role in AVC ambiguous.

Methods

From the Multi-Ethnic Study of Atherosclerosis database, we included 5597 individuals (61.8 ± 10.1 years and 47.5% men) without atherosclerotic cardiovascular disease at baseline for analysis. RC was calculated as total cholesterol minus high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C), as estimated by the Martin/Hopkins equation. Using the adjusted Cox regression analyses, we examined the relationships between RC levels and AVC progression. Furthermore, we conducted discordance analyses to evaluate the relative AVC risk in RC versus LDL-C discordant/concordant groups.

Results

During a median follow-up of 2.4 ± 0.9 years, 568 (10.1%) participants exhibited AVC progression. After adjusting for traditional cardiovascular risk factors, the HRs (95% CIs) for AVC progression comparing the second, third, and fourth quartiles of RC levels with the first quartile were 1.195 (0.925–1.545), 1.322 (1.028–1.701) and 1.546 (1.188–2.012), respectively. Notably, the discordant high RC/low LDL-C group demonstrated a significantly elevated risk of AVC progression compared to the concordant low RC/LDL-C group based on their medians (HR, 1.528 [95% CI 1.201–1.943]). This pattern persisted when clinical LDL-C threshold was set at 100 and 130 mg/dL. The association was consistently observed across various sensitivity analyses.

Conclusions

In atherosclerotic cardiovascular disease-free individuals, elevated RC is identified as a residual risk for AVC progression, independent of traditional cardiovascular risk factors. The causal relationship of RC to AVC and the potential for targeted RC reduction in primary prevention require deeper exploration.
Laparoscopic versus open distal gastrectomy for advanced gastric cancer in elderly patients: a propensity-score matched analysis
Authors: Yao Qing , Sun Qian-Nan , Wang Dao-Rong
Published: January 2024

Background

Scarce research has reported the efficacy and safety of laparoscopic distal gastrectomy in elderly patients. This retrospective study aimed to compare the outcomes of laparoscopic and open distal gastrectomy for advanced gastric cancer in elderly patients.

Methods

A total of 303 elderly patients who underwent distal gastrectomy for advanced gastric cancer from June 2017 to June 2021 were enrolled. Variables used to calculate propensity score matching included sex, age, body mass index, American Society of Anesthesiologists, history of diabetes, and history of hypertension. The statistical significance of continuous variables was tested using an independent sample t test. chi-square or Fisher’s exact tests were used for categorical variables. Kaplan–Meier curve and log-rank test were used for the evaluation of 3-year overall survival and recurrence-free survival.

Results

After performing 1:1 propensity score matching, 248 patients were included for analysis (laparoscopic = 124, open = 124). Compared with the open group, the laparoscopic group showed significant advantages in estimated blood loss (P < 0.001), pain scale on the first postoperative day (P = 0.002), time to first flatus (P = 0.004), time to first liquid diet (P = 0.005), hospital stays (P < 0.001), and total complications (P = 0.011), but devoted much more operation time (P < 0.001). No statistical difference was observed between the two groups in 3-year recurrence-free survival (P = 0.315) or overall survival (P = 0.159).

Conclusions

Our analysis demonstrated that laparoscopic surgery had the advantages of less intraoperative blood loss, fewer postoperative complications, and faster postoperative recovery in distal gastrectomy for advanced gastric, indicating that laparoscopic distal gastrectomy is safe and effective for treating elderly patients with distal gastric cancer.
Survival outcomes of malignant peripheral nerve sheath tumors (MPNSTs) with and without neurofibromatosis type I (NF1): a meta-analysis
Authors: Lim Zhixue , Gu Tian Yuan , Tai Bee Choo , Puhaindran Mark Edward
Published: January 2024

Introduction

Malignant peripheral nerve sheath tumors (MPNSTs) are malignancies that demonstrate nerve sheath differentiation in the peripheral nervous system. They can occur sporadically or be associated with neurofibromatosis type 1 (NF1), an autosomal dominant neurocutaneous disorder, with up to 13% of patients developing MPNSTs in their lifetimes. Previous studies have suggested conflicting findings regarding the prognosis of NF1 for patients with MPNSTs. The elucidation of NF1 as an independent prognostic factor on mortality has implications for clinical management. We aim to investigate the role of NF1 status as an independent prognostic factor of overall survival (OS) and disease-specific survival (DSS) in MPNSTs.

Methods

An electronic literature search of PubMed and MEDLINE was performed on studies reporting OS or DSS outcomes of MPNSTs with and without NF1. A grey literature search by reviewing bibliographies of included studies and review articles was performed to find pertinent studies. Data was extracted and assessed in accordance with the PRISMA guidelines. A meta-analysis was performed to calculate hazard ratios (HRs) using a random-effects model. The primary and secondary outcomes were all-cause and disease-specific mortality, respectively, with NF1 as an independent prognostic factor of interest.

Results

A total of 59 retrospective studies involving 3602 patients fulfilled the inclusion criteria for OS analysis, and 23 studies involving 704 MPNST patients were included to evaluate DSS outcomes. There was a significant increase in the hazard of all-cause mortality (HR 1.63, 95% CI 1.45 to 1.84) and disease-specific mortality (HR 1.52, 95% CI 1.24 to 1.88) among NF1 as compared to sporadic cases. Subgroup analyses and meta-regression showed that this result was consistent regardless of the quality of the study and year of publication.

Conclusion

NF1 is associated with a substantially higher risk of all-cause and disease-specific mortality. This finding suggests that closer surveillance is required for NF1 patients at risk of developing MPNSTs.
Participatory policy analysis in health policy and systems research: reflections from a study in Nepal
Authors: Sapkota Sujata , Rushton Simon , van Teijlingen Edwin , Subedi Madhusudan , Balen Julie , Gautam Sujan , Adhikary Pratik , Simkhada Padam , Wasti Sharada P. , Karki Jiban K. , Panday Sarita , Karki Alisha , Rijal Barsha , Joshi Saugat , Basnet Srijana , Marahatta Sujan B.
Published: January 2024

Background

Participatory policy analysis (PPA) as a method in health policy and system research remains underexplored. Using our experiences of conducting PPA workshops in Nepal to explore the impact of the country’s move to federalism on its health system, we reflect on the method’s strengths and challenges. We provide an account of the study context, the design and implementation of the workshops, and our reflections on the approach’s strengths and challenges. Findings on the impact of federalism on the health system are beyond the scope of this manuscript.

Main body

We conducted PPA workshops with a wide range of health system stakeholders (political, administrative and service-level workforce) at the local and provincial levels in Nepal. The workshops consisted of three activities: river of life, brainstorming and prioritization, and problem-tree analysis. Our experiences show that PPA workshops can be a valuable approach to explore health policy and system issues – especially in a context of widespread systemic change which impacts all stakeholders within the health system. Effective engagement of stakeholders and activities that encourage both individual- and system-level reflections and discussions not only help in generating rich qualitative data, but can also address gaps in participants’ understanding of practical, technical and political aspects of the health system, aid policy dissemination of research findings, and assist in identifying short- and long-term practice and policy issues that need to be addressed for better health system performance and outcomes. Conducting PPA workshops is, however, challenging for a number of reasons, including the influence of gatekeepers and power dynamics between stakeholders/participants. The role and skills of researchers/facilitators in navigating such challenges are vital for success. Although the long-term impact of such workshops needs further research, our study shows the usefulness of PPA workshops for researchers, for participants and for the wider health system.

Conclusions

PPA workshops can effectively generate and synthesize health policy and system evidence through collaborative engagement of health system stakeholders with varied roles. When designed with careful consideration for context and stakeholders’ needs, it has great potential as a method in health policy and systems research.
A pre-existing Toxoplasma gondii infection exacerbates the pathophysiological response and extent of brain damage after traumatic brain injury in mice
Authors: Baker Tamara L. , Wright David K. , Uboldi Alessandro D. , Tonkin Christopher J. , Vo Anh , Wilson Trevor , McDonald Stuart J. , Mychasiuk Richelle , Semple Bridgette D. , Sun Mujun , Shultz Sandy R.
Published: January 2024

Traumatic brain injury (TBI) is a key contributor to global morbidity that lacks effective treatments. Microbial infections are common in TBI patients, and their presence could modify the physiological response to TBI. It is estimated that one-third of the human population is incurably infected with the feline-borne parasite, Toxoplasma gondii, which can invade the central nervous system and result in chronic low-grade neuroinflammation, oxidative stress, and excitotoxicity—all of which are also important pathophysiological processes in TBI. Considering the large number of TBI patients that have a pre-existing T. gondii infection prior to injury, and the potential mechanistic synergies between the conditions, this study investigated how a pre-existing T. gondii infection modified TBI outcomes across acute, sub-acute and chronic recovery in male and female mice. Gene expression analysis of brain tissue found that neuroinflammation and immune cell markers were amplified in the combined T. gondii + TBI setting in both males and females as early as 2-h post-injury. Glutamatergic, neurotoxic, and oxidative stress markers were altered in a sex-specific manner in T. gondii + TBI mice. Structural MRI found that male, but not female, T. gondii + TBI mice had a significantly larger lesion size compared to their uninfected counterparts at 18-weeks post-injury. Similarly, diffusion MRI revealed that T. gondii + TBI mice had exacerbated white matter tract abnormalities, particularly in male mice. These novel findings indicate that a pre-existing T. gondii infection affects the pathophysiological aftermath of TBI in a sex-dependent manner, and may be an important modifier to consider in the care and prognostication of TBI patients.