bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic mapping and identification of Rht8-B1 that regulates plant height in wheat
Authors: Zhou Chunyun , Xiong Hongchun , Fu Meiyu , Guo Huijun , Zhao Linshu , Xie Yongdun , Gu Jiayu , Zhao Shirong , Ding Yuping , Li Yuting , Li Xuejun , Liu Luxiang
Published: June 2023

Background

Plant height (PH) and spike compactness (SC) are important agronomic traits that affect yield improvement in wheat crops. The identification of the loci or genes responsible for these traits is thus of great importance for marker-assisted selection in wheat breeding.

Results

In this study, we used a recombinant inbred line (RIL) population with 139 lines derived from a cross between the mutant Rht8-2 and the local wheat variety NongDa5181 (ND5181) to construct a high-density genetic linkage map by applying the Wheat 40 K Panel. We identified seven stable QTLs for PH (three) and SC (four) in two environments using the RIL population, and found that Rht8-B1 is the causal gene of qPH2B.1 by further genetic mapping, gene cloning and gene editing analyses. Our results also showed that two natural variants from GC to TT in the coding region of Rht8-B1 resulted in an amino acid change from G (ND5181) to V (Rht8-2) at the 175th position, reducing PH by 3.6%~6.2% in the RIL population. Moreover, gene editing analysis suggested that the height of T2 generation in Rht8-B1 edited plants was reduced by 5.6%, and that the impact of Rht8-B1 on PH was significantly lower than Rht8-D1. Additionally, analysis of the distribution of Rht8-B1 in various wheat resources suggested that the Rht8-B1b allele has not been widely utilized in modern wheat breeding.

Conclusions

The combination of Rht8-B1b with other favorable Rht genes might be an alternative approach for developing lodging-resistant crops. Our study provides important information for marker-assisted selection in wheat breeding.
Functional status associated with postural dizziness, but not postural hypotension, in older adults: a community-based study
Authors: Cheng Hsiang-Ju , Sun Zih-Jie , Lu Feng-Hwa , Yang Yi-Ching , Chang Chih-Jen , Wu Jin-Shang
Published: June 2023

Background

Functional status, postural dizziness (PD), and postural hypotension (PH) were important issues in older adults. Only one study on the relationship for the three of them in female was without adjusting some important associated factors. This study was intended to investigate the association of PD and PH with functional status in older people of both genders.

Methods

Based on a stratified randomized cluster sampling, 1361 subjects ≥ 65 years in the community were recruited from Tainan City, Taiwan, from 2000 to 2001. PH was defined as a decrease in systolic/diastolic blood pressure of ≥ 20/10 mm Hg after 1 or 2 min of standing. PD was defined by a positive response to dizziness-like symptoms after standing up from a supine position. Functional status included the activities of daily living (ADLs) and instrumental activities of daily living (IADLs).

Results

After adjusting other variables, ADL disability (OR: 1.84, 95% CI: 1.35–2.51) and IADL disability (OR: 1.62, 95% CI: 1.21–2.17) were associated with PD, but not PH. In male and female subgroups, ADL disability (male OR: 1.70, 95% CI: 1.08–2.67; female OR 1.96, 95% CI: 1.26–3.07) was associated with PD. In male, IADL disability was associated with PD (OR: 2.32, 95% CI: 1.36–3.95).

Conclusions

Impaired functional status, shown using ADLs or IADLs, was positively associated with PD, but not PH in older adults ≥ 65 years. Clinically, it may be important to evaluate PD in older adults with ADL or IADL disability.
Characterization of periprosthetic environment microbiome in patients after total joint arthroplasty and its potential correlation with inflammation
Authors: Li Hao , Fu Jun , Erlong Niu , LI Rui , Xu Chi , Hao Libo , Chen Jiying , Chai Wei
Published: June 2023

Aims

Periprosthetic joint infection (PJI) is one of the most serious complications after total joint arthroplasty (TJA) but the characterization of the periprosthetic environment microbiome after TJA remains unknown. Here, we performed a prospective study based on metagenomic next-generation sequencing to explore the periprosthetic microbiota in patients with suspected PJI.

Methods

We recruited 28 patients with culture-positive PJI, 14 patients with culture-negative PJI, and 35 patients without PJI, which was followed by joint aspiration, untargeted metagenomic next-generation sequencing (mNGS), and bioinformatics analysis. Our results showed that the periprosthetic environment microbiome was significantly different between the PJI group and the non-PJI group. Then, we built a “typing system” for the periprosthetic microbiota based on the RandomForest Model. After that, the ‘typing system’ was verified externally.

Results

We found the periprosthetic microbiota can be classified into four types generally: “Staphylococcus type,” “Pseudomonas type,” “Escherichia type,” and “Cutibacterium type.” Importantly, these four types of microbiotas had different clinical signatures, and the patients with the former two microbiota types showed obvious inflammatory responses compared to the latter ones. Based on the 2014 Musculoskeletal Infection Society (MSIS) criteria, clinical PJI was more likely to be confirmed when the former two types were encountered. In addition, the Staphylococcus spp. with compositional changes were correlated with C-reactive protein levels, the erythrocyte sedimentation rate, and the synovial fluid white blood cell count and granulocyte percentage.

Conclusions

Our study shed light on the characterization of the periprosthetic environment microbiome in patients after TJA. Based on the RandomForest model, we established a basic “typing system” for the microbiota in the periprosthetic environment. This work can provide a reference for future studies about the characterization of periprosthetic microbiota in periprosthetic joint infection patients.
Primary membranous nephropathy in two siblings with one combined with anti-glomerular basement membrane disease: a case report
Authors: Cheng Yan-jiao , Jia Xiao-yu , Cao Hong-ru , Zhao Xiao-yi , Zhou Xu-jie , Yu Xiao-juan , Xu Rong , Zhou Fu-de , Wang Su-xia , Cui Zhao , Zhao Ming-hui
Published: June 2023

Background

The phospholipase A2 receptor (PLA2R) associated with membranous nephropathy (MN) is an organ-specific autoimmune disease associated with PLA2R and human leukocyte antigen (HLA) genes. Familial PLA2R-related MN is rarely reported. The combination of anti-GBM disease and MN has been well documented, though the mechanism behind it remains unclear.

Case presentation

We describe two siblings diagnosed with pathology-confirmed PLA2R-related MN 1 year apart. And one of the two siblings developed an anti-GBM disease. The high-resolution HLA typing showed identical alleles in both siblings, specifically heterozygotes of DRB1*15:01/*03:01.

Conclusion

We describe a familial case of PLA2R-related MN supporting the role of genetic factors that HLA-DRB1*15:01 and DRB1*03:01 predispose patients in the development of PLA2R-related MN in the Han Chinese population. The combination of MN and anti-GBM disease may also partially be associated with the same susceptible HLA allele DRB1*15:01.
Childhood modifiable risk factors and later life chronic kidney disease: a systematic review
Authors: Liu Conghui , He Ye , Venn Alison J. , Jose Matthew D. , Tian Jing
Published: June 2023

Background

Relationships between adulthood modifiable risk factors and chronic kidney disease (CKD) are well-established, but associations with childhood risk factors are unclear. This study systematically assesses the published evidence about childhood modifiable risk factors and adulthood CKD.

Methods

We searched MEDLINE, EMBASE, and Web of Science to 6th May 2022. Articles were included if (1) they were population-based longitudinal studies, (2) exposures were potentially modifiable, for example through pharmacological or lifestyle modifications, including clinical conditions/measures (diabetes, blood pressure, adiposity, and dyslipidaemia); health behaviours (smoking, alcohol consumption, physical activity, fitness, and poor nutrition); and socio-economic factors (socio-economic position), and occurred during childhood (ages 2–19 years), and (3) outcome was CKD or surrogate markers of CKD in adulthood (ages 20 years or older). Three reviewers independently extracted the data.

Results

15,232 articles were identified after deduplication; 17 articles met the inclusion criteria, reporting childhood blood pressure (n = 8), adiposity (n = 4), type 2 diabetes (n = 1), socio-economic position (n = 1), famine (n = 1), cardiorespiratory fitness (n = 1), and a healthy lifestyle score (n = 1). The results suggested positive associations of childhood adiposity, type 2 diabetes, and low socio-economic position and cardiorespiratory fitness in females with CKD in adulthood. Findings were inconsistent on associations between childhood BP and CKD in adulthood. Childhood healthy lifestyle score and exposure to famine were not associated with risk of CKD in adulthood.

Conclusions

The limited evidence suggests childhood factors may contribute to the CKD risk in adulthood, particularly adiposity, type 2 diabetes, and low socio-economic position and cardiorespiratory fitness in females. Further high-quality community-based studies are needed with long-term follow-up and investigation of a broader range of modifiable risk factors.
Longitudinal study of multidimensional factors influencing maternal and offspring health outcomes: a study protocol
Authors: Chen Jianfei , Tian Ruixue , Zou Zhijie , Wu Jiaxin , Zhao Jing , Chen Yanlin , Peng Li , Lyu Wenyi , Cheng Qiuxia , Cai Zhongxiang , Chen Xiaoli , Chen Chunli
Published: June 2023

Background

Reducing preventable adverse maternal and offspring outcomes is a global priority. The causes of adverse maternal and fetal outcomes are complex with multidimensional influencing factors. In addition, the Covid-19 epidemic has had a significant psychological and physical impact on people. China is now stepping into the post-epidemic era. We are curious about the psychological and physical situation of maternity in China at this stage. Therefore, we plan to initiate a prospective longitudinal study to investigate the multidimensional influences and mechanisms that affect maternal and offspring health.

Method

We will recruit eligible pregnant women at Renmin Hospital of Hubei Province, China. The expected sample size is 1490. We will assess socio-demographics, Covid-19 related information, social capital, sleep, mental health and medical records, including clinical examination and biochemical tests. Eligible pregnant women will be enrolled in the study with less than 14 weeks of gestation. Participants will receive a total of nine follow-up visits between mid-pregnancy and one year postpartum. The offspring will be followed up at birth, 6 weeks, 3 months, 6 months and one year. In addition, a qualitative study will be conducted to understand the underlying causes that affect maternal and offspring health outcomes.

Discussion

This is the first longitudinal study of maternity in Wuhan, Hubei Province which integrates physical, psychological and social capital dimensions. Wuhan is the first city to be affected by Covid-19 in China. As China moves into the post-epidemic era, this study will provide us with a better understanding of the long-term impact of the epidemic on maternal and offspring health outcomes. We will implement a range of rigorous measures to enhance participants’ retention rate and ensure the quality of data. The study will provide empirical results for maternal health in the post-epidemic era.
Decision-to-delivery interval and neonatal outcomes in intrapartum umbilical cord prolapse
Authors: Houri Ohad , Walfisch Asnat , Shilony Adi , Zafrir-Danieli Hadas , Hendin Natav , Matot Ran , Navon Inbal , Hadar Eran
Published: June 2023

Background

Rapid delivery is important in cases of umbilical cord prolapse to prevent hypoxic injury to the fetus/neonate. However, the optimal decision-to-delivery interval remains controversial.

Objective

The aim of the study was to investigate the association between the decision-to-delivery interval in women with umbilical cord prolapse, stratified by fetal heart rate pattern at diagnosis, and neonatal outcome.

Study design

The database of a tertiary medical center was retrospectively searched for all cases of intrapartum cord prolapse between 2008 and 2021. The cohort was divided into three groups according to findings on the fetal heart tracing at diagnosis: 1) bradycardia; 2) decelerations without bradycardia; and 3) reassuring heart rate. The primary outcome measure was fetal acidosis. The correlation between cord blood indices and decision-to-delivery interval was analyzed using Spearman’s rank correlation coefficient.

Results

Of the total 103,917 deliveries performed during the study period, 130 (0.13%) were complicated by intrapartum umbilical cord prolapse. Division by fetal heart tracing yielded 22 women (16.92%) in group 1, 41 (31.53%) in group 2, and 67 (51.53%) in group 3. The median decision-to-delivery interval was 11.0 min (IQR 9.0–15.0); the interval was more than 20 min in 4 cases. The median cord arterial blood pH was 7.28 (IQR 7.24–7.32); pH was less than 7.2 in 4 neonates. There was no correlation of cord arterial pH with decision-to-delivery interval (Spearman’sΡ =  − 0.113;Ρ = 0.368) or with fetal heart rate pattern (Spearman’sΡ = .425;Ρ = .079,Ρ =  − .205;Ρ = .336,Ρ =  − .324;Ρ = .122 for groups 1–3, respectively).

Conclusion

Intrapartum umbilical cord prolapse is a relatively rare obstetric emergency with an overall favorable neonatal outcome if managed in a timely manner, regardless of the immediately preceding fetal heart rate. In a clinical setting which includes a high obstetric volume and a rapid, protocol-based, response, there is apparently no significant correlation between decision-to-delivery interval and cord arterial cord pH.
Photon and Proton irradiation in Patient-derived, Three-Dimensional Soft Tissue Sarcoma Models
Authors: Roohani Siyer , Loskutov Jürgen , Heufelder Jens , Ehret Felix , Wedeken Lena , Regenbrecht Manuela , Sauer Rica , Zips Daniel , Denker Andrea , Joussen Antonia M. , Regenbrecht Christian R. A. , Kaul David
Published: June 2023

Background

Despite their heterogeneity, the current standard preoperative radiotherapy regimen for localized high-grade soft tissue sarcoma (STS) follows a one fits all approach for all STS subtypes. Sarcoma patient-derived three-dimensional cell culture models represent an innovative tool to overcome challenges in clinical research enabling reproducible subtype-specific research on STS. In this pilot study, we present our methodology and preliminary results using STS patient-derived 3D cell cultures that were exposed to different doses of photon and proton radiation. Our aim was: (i) to establish a reproducible method for irradiation of STS patient-derived 3D cell cultures and (ii) to explore the differences in tumor cell viability of two different STS subtypes exposed to increasing doses of photon and proton radiation at different time points.

Methods

Two patient-derived cell cultures of untreated localized high-grade STS (an undifferentiated pleomorphic sarcoma (UPS) and a pleomorphic liposarcoma (PLS)) were exposed to a single fraction of photon or proton irradiation using doses of 0 Gy (sham irradiation), 2 Gy, 4 Gy, 8 Gy and 16 Gy. Cell viability was measured and compared to sham irradiation at two different time points (four and eight days after irradiation).

Results

The proportion of viable tumor cells four days after photon irradiation for UPS vs. PLS were significantly different with 85% vs. 65% (4 Gy), 80% vs. 50% (8 Gy) and 70% vs. 35% (16 Gy). Proton irradiation led to similar diverging viability curves between UPS vs. PLS four days after irradiation with 90% vs. 75% (4 Gy), 85% vs. 45% (8 Gy) and 80% vs. 35% (16 Gy). Photon and proton radiation displayed only minor differences in cell-killing properties within each cell culture (UPS and PLS). The cell-killing effect of radiation sustained at eight days after irradiation in both cell cultures.

Conclusions

Pronounced differences in radiosensitivity are evident among UPS and PLS 3D patient-derived sarcoma cell cultures which may reflect the clinical heterogeneity. Photon and proton radiation showed similar dose-dependent cell-killing effectiveness in both 3D cell cultures. Patient-derived 3D STS cell cultures may represent a valuable tool to enable translational studies towards individualized subtype-specific radiotherapy in patients with STS.
Malnutrition and visceral obesity predicted adverse short-term and long-term outcomes in patients undergoing proctectomy for rectal cancer
Authors: Zhou Chong-Jun , Lin Yi , Liu Jie-Yu , Wang Zhong-Lin , Chen Xi-Yi , Zheng Chen-Guo
Published: June 2023

Background

To the best of our knowledge, no previous studies have explored the relationship between visceral obesity and malnutrition. Therefore, this study has aimed to investigate the association between them in patients with rectal cancer.

Methods

Patients with rectal cancer who underwent proctectomy were included. Malnutrition was defined according to the Global Leadership Initiative on Malnutrition (GLIM). Visceral obesity was measured using computed tomography (CT). The patients were classified into four groups according to the presence of malnutrition or visceral obesity. Univariate and multivariate logistic regression analyses were performed to evaluate risk factors for postoperative complications. Univariate and multivariate cox regression analyses were performed to evaluate the risk factors for overall survival (OS) and cancer-specific survival (CSS). Kaplan-Meier survival curves and log-rank tests were performed for the four groups.

Results

This study enrolled 624 patients. 204 (32.7%) patients were included in the well-nourished non-visceral obesity (WN) group, 264 (42.3%) patients were included in the well-nourished visceral obesity (WO) group, 114 (18.3%) patients were included in the malnourished non-visceral obesity (MN) group, and 42 (6.7%) patients were included in the malnourished visceral obesity (MO) group. In the multivariate logistic regression analysis, the Charlson comorbidity index (CCI), MN, and MO were associated with postoperative complications. In the multivariate cox regression analysis, age, American Society of Anesthesiologists (ASA) score, tumor differentiation, tumor node metastasis (TNM), and MO were associated with worsened OS and CSS.

Conclusions

This study demonstrated that the combination of visceral obesity and malnutrition resulted in higher postoperative complication and mortality rates and was a good indicator of poor prognosis in patients with rectal cancer.
Determination of Optimal Vitamin D Dosage in Children with Cholestasis
Authors: Chongthavornvasana Sirada , Lertudomphonwanit Chatmanee , Mahachoklertwattana Pat , Korwutthikulrangsri Manassawee
Published: June 2023

Background

Vitamin D deficiency in patients with cholestasis is due to impaired intestinal vitamin D absorption, which results from decreased intestinal bile acid concentration. Patients with cholestasis usually do not achieve optimal vitamin D status when a treatment regimen for children without cholestasis is used. However, data on high-dose vitamin D treatment in patients with cholestasis are limited.

Methods

This study is a prospective study that included pediatric patients with cholestasis (serum direct bilirubin > 1 mg/dL) who had vitamin D deficiency (serum 25-hydroxyvitamin D, 25-OHD, < 20 ng/mL). In Phase 1, single-day oral loading of 300,000 IU (or 600,000 IU if weight ≥ 20 kg) of vitamin D2 was administered, followed by an additional loading if serum 25-OHD < 30 ng/mL, and 4-week continuation of treatment using a vitamin D2 dose calculated based on the increment of 25-OHD after first loading. In Phase 2, oral vitamin D2 (200,000 IU/day) was administered for 12 days, followed by 400,000 IU/day of vitamin D2 orally for another 8 weeks if serum 25-OHD < 30 ng/mL.

Results

Phase 1: Seven patients were enrolled. Three out of seven patients had a moderate increase in serum 25-OHD after loading (up to 20.3–27.2 ng/mL). These patients had conditions with partially preserved bile flow. The remaining four patients, who had biliary atresia with failed or no Kasai operation, had low increments of serum 25-OHD. Phase 2: Eleven patients were enrolled. Eight out of 11 patients had a moderate increase in serum 25-OHD after 200,000 IU/day of vitamin D2 for 12 days. Serum 25-OHD continued increasing after administering 400,000 IU/day of vitamin D2 for another 8 weeks, with maximal serum 25-OHD of 15.7–22.8 ng/mL.

Conclusion

Very high doses of vitamin D2 (200,000 and 400,000 IU/day) partly overcame poor intestinal vitamin D absorption and resulted in moderate increases in serum 25-OHD in pediatric patients with cholestasis, particularly when cholestasis was caused by uncorrectable bile duct obstruction.
Psychological disturbances encountered by the healthcare professionals, military professionals and general public in Sri Lanka during COVID-19 pandemic: a cross-sectional study
Authors: Sundarapperuma Thamudi Darshi , Gamage Madushika Wishvanie Kodagoda , Rathnayake Nirmala , Weeratunga Eranthi Bimalee , Jagodage Hemamali Madhushanthi Hirimbura
Published: June 2023

Background

The COVID-19 pandemic is a serious global health concern, posing a greater risk of psychological vulnerabilities for frontline healthcare workers (HCWs), military professionals and the general public around the globe. These psychological issues appear to be long lasting and heighten the risk of mental health disorders. Therefore, this study aimed to identify psychological problems encountered by HCWs, military professionals, and the general public in Sri Lanka during the COVID-19 pandemic.

Methods

A descriptive cross-sectional study was undertaken with 367 participants, including frontline HCWs (n = 128), military professionals (n = 102), and the general public (n = 137). Depression and anxiety were assessed using the Peradeniya Depression Scale (PDS) and the Generalized Anxiety Disorder scale (GAD-7), respectively.

Results

Mean (± SD) age of the participants was 35.0 (± 10.6) years. A reasonable proportion of participants experienced depressive symptoms (39.25%, n = 144) and severe anxiety (12.8%, n = 47). Military professionals showed depressive symptoms (73.50%, n = 75) and severe anxiety (32.4%, n = 33) predominantly. Multivariate binary logistic regression revealed that only the level of education and professional engagement affected depressive symptoms and severe anxiety (p < 0.01). Having a high level of education was a protective factor for depressive symptoms (Adjusted OR = 0.34) compared to lower-level education, while being a HCW (Adjusted OR = 4.40) and military professional (Adjusted OR = 5.43) were identified as risk factors for depressive symptoms compared to the general public. Similarly, having a high level of education was a protective factor for severe anxiety (Adjusted OR = 0.29) compared to lower-level education, while being a HCW (Adjusted OR = 3.90) and military professional (Adjusted OR = 4.52) were identified as risk factors for severe anxiety compared to the general public.

Conclusion

The current study revealed a greater level of anxiety and depressive symptoms among frontline HCWs and military professionals in Sri Lanka during the pandemic of COVID-19 compared to the general public. Therefore, providing psychological first aid for them to better deal with mental problems and an emergency preparedness plan to deal with sudden outbreaks of infectious situations are important.
Anxiety and depression among perinatal women during the long-term normal prevention of COVID-19 pandemic period in China: a cross-sectional study
Authors: Chen Weiping , Peng Wei , Zhang Yan , Zhou Huansheng , Zhang Meng
Published: June 2023

Background

COVID-19 has increased the probability of occurrence of maternal anxiety and depression in pregnant women. However, there is limited research on anxiety and depression among pregnant women during the long-term normal prevention of COVID-19 pandemic period. This study aimed to examine the anxiety and depression and influencing factors among perinatal women during the long-term normal prevention of COVID-19 pandemic period in China.

Methods

A cross-sectional survey was designed. A total of 1338 pregnant women were studied. The prenatal anxiety and depression were assessed by the Self-rating Anxiety Scale (SAS) and the Self-rating Depression Scale (SDS), respectively. Postnatal depression was assessed by the Edinburgh Postpartum Depression Scale (EPDS) in 10–14 days after delivery. The data analysis was processed by SPSS9.0. Descriptive analysis was expressed by mean and standard deviation. The counting data were expressed by percentage, χ2 test, multiple linear regression and binary logistic regression.

Results

The incidence of prenatal anxiety (SAS score ≥ 50) was 27.95% (374 cases), prenatal depression (SDS score ≥ 0.5) was 34.01% (455 cases), and postpartum depression (EPDS score ≥ 0.5) was 25.04% (335 cases). Both the prenatal SAS score (r = 0.635, P < 0.001) and prenatal SDS score (r = 0.738, P < 0.001) were related to postpartum depression. Pregnant women who were younger than 35 years, in middle household income, lower education level, underweight before pregnancy, primiparous, and fear of being infected were at increased risk for developing anxiety and depression during the long-term normal prevention of COVID-19 pandemic.

Conclusions

The incidences of postpartum depression among perinatal women during the long-term normal prevention of COVID-19 pandemic period were a little lower than those during the COVID-19 outbreak period, but still higher than those before the COVID-19.
Role satisfaction among community volunteers working in mass COVID-19 vaccination clinics, Waterloo Region, Canada
Authors: Tetui Moses , Tennant Ryan , Patten Alexander , Giilck Ben , Burns Catherine M , Waite Nancy , Grindrod Kelly
Published: June 2023

Introduction

Unpaid community volunteers are a vital public health resource in times of crisis. In response to the COVID-19 pandemic, community volunteers were mobilized to support mass vaccination efforts in many countries. To have this group’s continued engagement, it is essential to understand the community volunteer experience, including the opportunities and challenges they encounter and how these contribute to their role satisfaction. This qualitative study investigated the factors contributing to community volunteers’ role satisfaction at COVID-19 mass vaccination clinics in the Region of Waterloo, Canada.

Methods

Qualitative data were analyzed from 20 volunteers (aged 48–79 years) who had worked at one of four COVID-19 vaccination clinics in the Region of Waterloo, Canada. Data were analyzed thematically using an inductive coding process followed by an iterative process of grouping and identifying linkages and relationships within the themes.

Results

Four interrelated themes were developed from the inductive analysis process. The theme of community volunteers feeling valued or disesteemed in their role depends on the interaction between the three themes of role description, role preparation, and clinic context.

Conclusions

For volunteers in crises such as the COVID-19 pandemic, volunteer role satisfaction depends on how their contributions are valued, the clarity of their role descriptions, volunteer-specific training, and the sentiments of volunteers and staff within the clinic context. Greater role satisfaction can help with retention as volunteers become more resilient and adaptable to the complex dynamic circumstances of a crisis response. Activities such as training and materials development for role preparations should be explicitly planned and well-resourced, even in crisis/pandemic situations. Building clinic managers’ or supervisors’ skills in communication during crisis/pandemic situations and the skills for the creation of team cohesion are critical investment areas.
A survey on the degree of eye discomfort caused by video terminal use among college students in different altitudes
Authors: Liu Bingjie , Zhou Daijiao , Li Zuyou , Wang Yao , Chen Zhen
Published: June 2023

Objective

To analyze the risk factors associated with different levels of eye discomfort due to video terminal use among college students at different altitudes.

Methods

This cross-sectional study was conducted to assess the prevalence and extent of eye discomfort by distributing an questionnaire to university students via the Internet. To analyze the causes and risk factors of eye discomfort among college students at different altitudes after using video terminals.

Results

A total of 647 participants who met the criteria were included in this survey, of whom 292 (45.1%) were males and 355 (54.9%) were females. The results of the survey showed 194 (30.0%) participants without eye discomfort and 453 (70.0%) participants with eye discomfort. The results of the univariate comparison of the degree of eye discomfort in the study subjects with different characteristics showed that the differences in the degree of eye discomfort were statistically significant (P < 0.05) for the 7 groups of indicators: gender, region, wearing corneal contact lenses for more than 2 h per day, frequent use of eye drops, sleep time, total time of VDT use per day, and total time per VDT use, while the remaining indicators, including age, profession, and whether refractive surgery or other eye surgery was performed, whether frame glasses were worn for a long time, and duration of daily mask wear were not statistically significant. The results of multi-factor logistic analysis of the degree of eye discomfort in the study subjects with different characteristics showed that gender, region, frequent use of eye drops, sleep time, and total time of VDT use per day were the risk factors affecting the degree of eye discomfort.

Conclusions

Female, high altitude, frequent use of eye drops, shorter daily sleep duration and longer daily VDT use were associated risk factors for the development of severe eye discomfort, where the severity of eye discomfort was significantly negatively correlated with increased sleep duration and significantly positively correlated with increased total time of VDT use.
The social and health protection of migrants in Chile: qualitative analysis of civil society proposals for constitutional change
Authors: Esnouf Sophie , Blukacz Alice , Obach Alexandra , Mezones-Holguin Edward , Espinoza Manuel , DeJong Jocelyn , Cabieses Baltica
Published: June 2023

Background

A sustained period of social, economic, and political unrest took place during October of 2019 in Chile. As an institutional solution, the “Agreement for Social Peace and the New Constitution” was signed. In this document, most political parties committed to reestablishing peace and public order in Chile, agreeing on the initiation of a constitutional process. To promote participation of civil society actors, the “Popular Initiative for Norms” was enabled. This was a platform where civilians could submit proposals for constitutional norms to be discussed by the Constitutional Convention. We aimed to analyze proposals related to migrants and migrant health.

Methods

We conducted a qualitative thematic analysis of the proposals. Sixteen of them were related to migrants, and we analyzed their association to health. We also evaluated their link to the Health Goals 2030 set out by the Chilean Ministry of Health and the Global Action Plan 2019–2023 for Promoting the Health of Refugees and Migrants by the World Health Organization.

Results

Four main thematic categories were identified: 1) Humans rights of migrants, refugees, and asylum seekers; 2) Nationality and regularization of migrants and refugees; 3) Political participation and cultural integration of migrants and refugees; and 4) Specific regulations on slavery and human trafficking. These resonated with broader frameworks established in the Health Goals 2030 (Chile) and the Global Action Plan 2019–2023 for Promoting the Health of Refugees and Migrants by the World Health Organization.

Conclusions

The ‘Popular Initiative for Norms’ was a non-binding participatory mechanism. Although the proposals sent through were not guaranteed to be included in the constitutional draft—and despite the final draft being rejected last September 2022—the platform allowed to gain insights into civilian opinions. Our findings showed that there is an incipient yet weak recognition of the rights and situation of migrants in Chile. There was no direct mention of health nor an explicit contemplation of social determinants of health. Despite there being an urgent need to define strategies for migrants’ health in Chile, this study demonstrated that civil awareness and interest are still insufficient.
Evaluating the efficacy of endodontic microsurgery for teeth with an undeveloped root apex and periapical periodontitis after nonsurgical treatment failure
Authors: Tang Yumu , Xu Ke , Chen Yumao , Lu Le
Published: June 2023

Aim

To determine the efficacy of endodontic microsurgery for teeth with an undeveloped root apex and periapical periodontitis caused by an abnormal central cusp fracture after failed nonsurgical treatment.

Methodology

Eighty teeth in 78 patients were subjected to endodontic microsurgery. All patients were clinically and radiologically examined 1 year postoperatively. The data were statistically analyzed using SPSS 27.0 software.

Results

Of the 80 teeth in 78 patients, periapical lesions had disappeared in 77 teeth at 1-year postoperative follow-up, with a success rate of approximately 96.3% (77/80). The efficacy of endodontic microsurgery was not affected by sex, age, extent of periapical lesions, and presence of the sinus tract. Between-group differences were not statistically significant (P > 0.05).

Conclusions

Endodontic microsurgery can be an effective alternative treatment option for teeth with an undeveloped root apex and periapical periodontitis caused by an abnormal central cusp fracture after nonsurgical treatment failure.
Integrated physical education and medicine in general physical education at universities in the age of educational technologies
Authors: Niu Yunfei
Published: June 2023

Background

The integration of training sessions into modern education is of vital importance for such disciplines as Physical Education and First Aid for the non-core specialities. This research explored the opportunities to introduce a pilot programme for Sports Medicine based on the First Aid and Fitness Tests applications to develop critical thinking skills in students using an indirect learning method.

Methods

This research used the Fitness Tests application developed by the ConnectedPE software company. The software contains more than 30 fitness tests and indicates the goal, equipment, procedure and standards so that students can easily and accurately complete all tasks and improve their fitness. The experimental group involved 60 first-year students (25 females and 35 males). The average age is 18.2 years. The control group involved 28 males and 32 females with an average age of 18.3 years. Students were assigned randomly to groups to ensure the experiment’s validity.

Results

The analysis of the pre-test and post-test of Critical Thinking Skills Success showed significant improvements in critical thinking skills (Z = -6.755 at p = 0.00) based on the integrated sports medicine programme. A negative correlation was observed between the post-test scores of Critical Thinking Skills Success and the Integrated Sports Medicine Test (r = -0.280, p < 0.05).

Conclusions

This article fills a gap in research on the possibility of integrating physical education and medicine into one ICT-based university course that would optimise study hours and develop critical thinking. The research’s scientific value is to promote the discussion about the absence of a unified standard for the basic sports training of young individuals on a global scale. The practical significance lies in the enhanced development of critical thinking skills among students through integrated sports training sessions, as opposed to the conventional lecture format. The other important finding is the fact that the use of mobile applications and the development of a general programme in sports medicine have no positive impact or correlation with the academic outputs of students in these two disciplines. The research results can help educators to update curricula on physical education and extracurricular pre-medical training at universities. The perspective of this research is to integrate physical education with other academic disciplines, such as biology, mathematics, physics, and others, to determine the feasibility of this integration and investigate its effect on critical thinking.
What is the efficacy and effectiveness of telemedicine intervention for deaf signing populations in comparison to face-to-face interventions? A systematic review
Authors: Rogers Katherine , Lovell Karina , Young Alys
Published: June 2023

Background

Deaf signing populations face inequality in both access to health services and health outcomes. Telemedicine intervention might offer a potential solution to address these inequalities in mental health and health related services, therefore a systematic review was carried out. The review question was: “What is the efficacy and effectiveness of telemedicine intervention for Deaf signing populations in comparison to face-to-face interventions?”.

Methods

The PICO framework was applied to identify the components of the review question for this study. The inclusion criteria were: Deaf signing populations; any intervention that includes the delivery of telemedicine therapy and/or the delivery of assessment (e.g. psychological assessments) using telemedicine; and any evidence for the benefits, efficacy and effectiveness of telemedicine intervention with Deaf people whether in health and/or mental health services. The databases PsycINFO, PubMed, Web of Science, CINAHL, and Medline were searched up to August 2021.

Results

Following the search strategy, and after the duplicates were removed, 247 records were identified. Following screening, 232 were removed as they did not meet the inclusion criteria. The remaining 15 full-text articles were assessed for eligibility. Only two met the criteria to be included in the review (both concerned telemedicine and mental health interventions). However, they did not fully answer the review’s research question. Therefore, the evidence gap remains regarding the effectiveness of telemedicine intervention for Deaf people.

Conclusions

The review has identified a gap in the knowledge on the efficacy and effectiveness of telemedicine intervention for Deaf people when compared with face-to-face interventions.
Telemedicine in an adolescent and young adult medicine clinic: a mixed methods study
Authors: Barney Angela , Mendez-Contreras Sabrina , Hills Nancy K. , Buckelew Sara M. , Raymond-Flesch Marissa
Published: June 2023

Background

Adolescents and young adults are a diverse patient population with unique healthcare needs including sensitive and confidential services. Many clinics serving this population began offering telemedicine during the Covid-19 pandemic. Little is known regarding patient and parent experiences accessing these services via telemedicine.

Methods

To assess for trends and disparities in telemedicine utilization in the first year of the pandemic, we used the electronic health record to obtain patient demographic data from an adolescent and young adult medicine clinic in a large urban academic institution. Characteristics of patients who had accessed telemedicine were compared to those who were only seen in person. Mean age was compared using t-test, while other demographic variables were compared using chi-squared test or Fisher’s exact test. We performed qualitative semi-structured interviews with patients and parents of patients in order to characterize their experiences and preferences related to accessing adolescent medicine services via telemedicine compared to in-person care.

Results

Patients that identified as female, white race, Hispanic/Latinx ethnicity were more likely to have utilized telemedicine. Telemedicine use was also more prevalent among patients who were privately insured and who live farther from the clinic. Although interview participants acknowledged the convenience of telemedicine and its ability to improve access to care for people with geographic or transportation barriers, many expressed preferences for in-person visits. This was based on desire for face-to-face interactions with their providers, and perception of decreased patient and parent engagement in telemedicine visits compared to in-person visits. Participants also expressed concern that telemedicine does not afford as much confidentiality for patients.

Conclusions

More work is needed to address patient and parent preferences for telemedicine as an adjunct modality to in-person adolescent and young adult medicine services. Optimizing quality and access to telemedicine for this patient population can improve overall healthcare for this patient population.
Enhancing potential impact of hospital discharge interventions for patients with COPD: a qualitative systematic review
Authors: Nygård Torbjørn , Wright David , Nazar Hamde , Haavik Svein
Published: June 2023

Background

Patients with chronic obstructive pulmonary disease (COPD) are frequently readmitted to hospital resulting in avoidable healthcare costs. Many different interventions designed to reduce hospital readmissions are reported with limited evidence for effectiveness. Greater insight into how interventions could be better designed to improve patient outcomes has been recommended.

Aim

To identify areas for optimisation within previously reported interventions provided to reduce COPD rehospitalisation to improve future intervention development.

Methods

A systematic review was conducted by searching Medline, Embase, CINAHL, PsycINFO, and CENTRAL in June 2022. Inclusion criteria were interventions provided to patients with COPD in the transition from hospital to home or community. Exclusion criteria were lack of empirical qualitative results, reviews, drug trials, and protocols. Study quality was assessed using the Critical Appraisal Skills Programme tool and results were synthesised thematically.

Results

A total of 2,962 studies were screened and nine studies included. Patients with COPD experience difficulties when transitioning from hospital to home. It is therefore important for interventions to facilitate a smooth transition process and give appropriate follow-up post-discharge. Additionally, interventions should be tailored for each patient, especially regarding information provided.

Conclusion

Very few studies specifically consider processes underpinning COPD discharge intervention implementation. There is a need to recognise that the transition itself creates problems, which require addressing, before introducing any new intervention. Patients report a preference for interventions to be individually adapted—in particular the provision of patient information. Whilst many intervention aspects were well received, feasibility testing may have enhanced acceptability. Patient and public involvement may address many of these concerns and greater use of process evaluations should enable researchers to learn from each other’s experiences.

Trial registration

The review was registered in PROSPERO with registration number CRD42022339523.
NO-sensitive guanylyl cyclase discriminates pericyte-derived interstitial from intra-alveolar myofibroblasts in murine pulmonary fibrosis
Authors: Aue Annemarie , Englert Nils , Harrer Leon , Schwiering Fabian , Gaab Annika , König Peter , Adams Ralf , Schmidtko Achim , Friebe Andreas , Groneberg Dieter
Published: June 2023

Background

The origin of αSMA-positive myofibroblasts, key players within organ fibrosis, is still not fully elucidated. Pericytes have been discussed as myofibroblast progenitors in several organs including the lung.

Methods

Using tamoxifen-inducible PDGFRβ-tdTomato mice (PDGFRβ-CreERT2; R26tdTomato) lineage of lung pericytes was traced. To induce lung fibrosis, a single orotracheal dose of bleomycin was given. Lung tissue was investigated by immunofluorescence analyses, hydroxyproline collagen assay and RT-qPCR.

Results

Lineage tracing combined with immunofluorescence for nitric oxide-sensitive guanylyl cyclase (NO-GC) as marker for PDGFRβ-positive pericytes allows differentiating two types of αSMA-expressing myofibroblasts in murine pulmonary fibrosis: (1) interstitial myofibroblasts that localize in the alveolar wall, derive from PDGFRβ+ pericytes, express NO-GC and produce collagen 1. (2) intra-alveolar myofibroblasts which do not derive from pericytes (but express PDGFRβ de novo after injury), are negative for NO-GC, have a large multipolar shape and appear to spread over several alveoli within the injured areas. Moreover, NO-GC expression is reduced during fibrosis, i.e., after pericyte-to-myofibroblast transition.

Conclusion

In summary, αSMA/PDGFRβ-positive myofibroblasts should not be addressed as a homogeneous target cell type within pulmonary fibrosis.
Intensified glycemic control by HbA1c for patients with coronary heart disease and Type 2 diabetes: a review of findings and conclusions
Authors: Chen Jingyang , Yin Dong , Dou Kefei
Published: June 2023

The occurrence and development of coronary heart disease (CHD) are closely linked to fluctuations in blood glucose levels. While the efficacy of intensified treatment guided by HbA1c levels remains uncertain for individuals with diabetes and CHD, this review summarizes the findings and conclusions regarding HbA1c in the context of CHD. Our review showed a curvilinear correlation between regulated level of HbA1c and therapeutic effectiveness of intensified glycemic control among patients with type 2 diabetes and coronary heart disease. It is necessary to optimize the dynamic monitoring indicators of HbA1c, combine genetic profiles, haptoglobin phenotypes for example and select more suitable hypoglycemic drugs to establish more appropriate glucose-controlling guideline for patients with CHD at different stage of diabetes.