bluuebunny/crossref_metadata_2025 huggingface dataset:
Genome-wide identification and characterization of bZIP gene family and cloning of candidate genes for anthocyanin biosynthesis in pomegranate (Punica granatum)
Authors: Wang Sha , Zhang Xinhui , Li Bianbian , Zhao Xueqing , Shen Yu , Yuan Zhaohe
Published: April 2022

Background

The basic leucine zipper (bZIP) transcription factor is one of the most abundant and conserved gene families in eukaryotes. In addition to participating in plant development and growth, bZIP transcription factors play crucial roles in various abiotic stress responses and anthocyanin accumulation. Up to now, analysis of bZIP gene family members in pomegranate (Punica granatum) has not been reported. Three published pomegranate genome sequences provide valuable resources for further gene function analysis.

Results

Using bioinformatics analysis, 65 PgbZIPs were identified and analyzed from the ‘Taishanhong’ pomegranate genome. We divided them into 13 groups (A, B, C, D, E, F, G, H, I, J, K, M, and S) according to the phylogenetic relationship with those of Arabidopsis, each containing a different number of genes. The regularity of exon/intron number and distribution was consistent with the classification of groups in the evolutionary tree. Transcriptome analysis of different tissues showed that members of the PgbZIP gene family were differentially expressed in different developmental stages and tissues of pomegranate. Among them, we selected PgbZIP16 and PgbZIP34 as candidate genes which affect anthocyanin accumulation. The full-length CDS region of PgbZIP16 and PgbZIP34 were cloned from pomegranate petals by homologous cloning technique, encoding 170 and 174 amino acids, which were 510 bp and 522 bp, respectively. Subcellular localization assays suggested that both PgbZIP16 and PgbZIP34 were nucleus-localized. Real-time quantitative PCR (qPCR) was used to explore the expression of PgbZIP16 and PgbZIP34 in the petals of three kinds of ornamental pomegranates at the full flowering stage. The results demonstrated that the expression of PgbZIP16 in red petals was 5.83 times of that in white petals, while PgbZIP34 was 3.9 times. The results of transient expression in tobacco showed that consistent trends were observed in anthocyanin concentration and expression levels of related genes, which both increased and then decreased. Both PgbZIP16 and PgbZIP34 could promote anthocyanin accumulation in tobacco leaves. We obtained transgenic strains overexpressing PgbZIP16, and the histochemical staining for GUS activity showed that overexpressed PgbZIP16 seedlings were expressed in the stem. Transgenic experiments indicated that overexpression of PgbZIP16 significantly upregulated UF3GT, ANS and DFR genes in Arabidopsis and enhanced anthocyanin accumulation.

Conclusions

The whole genome identification, gene structure, phylogeny, gene cloning, subcellular location and functional verification of the pomegranate bZIP gene family provide a theoretical foundation for the functional study of the PgbZIP gene family and candidate genes for anthocyanin biosynthesis.
Power sources among district health managers in Ghana: a qualitative study
Authors: Bawontuo Vitalis , Adomah-Afari Augustine , Atinga Roger A. , Kuupiel Desmond , Agyepong Irene Akua
Published: April 2022

Background

In Ghana district directors of health services and district hospital medical superintendents provide leadership and management within district health systems. A healthy relationship among these managers is dependent on the clarity of formal and informal rules governing their routine duties. These rules translate into the power structures within which district health managers operate. However, detailed nuanced studies of power sources among district health managers are scarce. This paper explores how, why and from where district health directors and medical superintendents derive power in their routine functions.

Methods

A multiple case study was conducted in three districts; Bongo, Kintampo North and Juaboso. In each case study site, a cross-sectional design was used to explore the research question. Purposive sampling technique was used to select study sites and 61 participants for interview and focus group discussion. A total of 11 interviews (3 in each district and 2 with deputy regional directors), and 9 focus group discussions (3 in each district) were conducted. Transcriptions of the voice-recordings were done verbatim, cleaned and imported into the Nvivo version 11 software for analysis using the inductive content analysis approach.

Results

The findings revealed that legitimacy provides formal power source for district health managers since they are formally appointed by the Director General of the Ghana Health Service after going through the appointment processes. These appointments serve as the primary power source for district health managers based on the existing legal and policy framework of the Ghana Health Service. Additionally, resource control especially finances and medical dominance are major informal sources of power that district health managers often employ for the management and administration of their functional areas in the health districts.

Conclusions

The study concludes that district health managers derive powers primarily from their positions within the hierarchical structure (legitimacy) of the district health system. Secondary sources of power stems from resource control (medical dominance and financial dominance), and these power sources inform the way district health managers relate to each other. This paper recommends that district health managers are oriented to understand the power dynamics in the district health system.
Association between stress hyperglycemia ratio and delirium in older hospitalized patients: a cohort study
Authors: Song Quhong , Dai Miao , Zhao Yanli , Lin Taiping , Huang Li , Yue Jirong
Published: April 2022

Background

It remains unclear whether stress hyperglycemia is associated with delirium. We performed this cohort study to determine the association between stress hyperglycemia and delirium.

Methods

We consecutively enrolled patients aged ≥70 years who were admitted to the Geriatric Department of West China Hospital between March 2016 and July 2017. Stress hyperglycemia ratio (SHR) was calculated as fasting blood glucose divided by estimated average glucose derived from glycosylated hemoglobin (HbA1c) and was classified into three tertiles. Delirium was screened within 24 h of admission and three times daily thereafter, using the confusion assessment method. The Cox proportional hazards models were used to assess the association of SHR with delirium.

Results

Among 487 included patients (mean age 83.0 years, 72.0% male), 50 (10.3%) patients experienced delirium during hospitalization. Compared to the second tertile, both the lowest and the highest SHR tertiles were independently associated with delirium (hazard ratio [HR] 3.71, 95% confidence interval [CI] 1.45-9.51; and HR 2.97, 95% CI 1.29-6.81, respectively). Similar results were found after further adjusting for statin comedication. Multiple-adjusted restricted cubic splines revealed a nonlinear relationship between SHR and delirium (Pnonlinearity=0.04). Adding SHR to conventional risk factors improved the risk prediction of delirium (net reclassification index 0.39, P=0.01; integrated discrimination improvement 0.07, P=0.03). Subgroup analyses indicated that the relationship between SHR and delirium was more apparent in patients with HbA1c <6.5%, with significantly higher HR in the first (3.65, 95% CI 1.11-11.97) and third (3.13, 95% CI 1.13-8.72) SHR tertiles compared to the second tertile, while there was no significant association between SHR and delirium in those with HbA1c ≥6.5%.

Conclusions

Both lower and higher SHR were associated with increased risk of delirium but only in patients with HbA1c <6.5%. Admission SHR may serve as a promising predictor of delirium, and incorporating this biomarker into prediction algorithms might have potential clinical utility in aiding delirium risk stratification, especially in those with HbA1c <6.5%.
Social relations and health in older people in Spain using SHARE survey data
Authors: Silberman-Beltramella Mariela , Ayala Alba , Rodríguez-Blázquez Carmen , Forjaz Maria João
Published: April 2022

Introduction

Social relationships (SR) are an important aspect in the healthy ageing process. The study aimed to describe SR in over-50s in Spain and analyse their association with physical/emotional, functional and cognitive/sensory health variables.

Methods

The study sample was formed by 5583 people representing the Spanish population aged 50 and over, who participated in the sixth wave of the Survey of Health, Ageing and Retirement in Europe (SHARE). The variables were divided into socio-demographic aspects and economic, health and SR aspects represented by the number of friends, family members and satisfaction with social network and the Revised UCLA loneliness scale. The health variables were grouped using a main component analysis. Multiple linear regressions were performed between the health components with socio-demographic and SR variables.

Results

67.26% of respondents said they did not feel lonely. The feeling of loneliness was the variable most closely related to the physical and emotional, functional and cognitive and sensory health components. The main SR variable associated to health components was the Revised UCLA Loneliness Scale (standardised beta, p < 0.001; p < 0.001; and p < 0.001, respectively). The number of family members in social network SR variable was also associated with the physical/emotional health (β = 0.09, p < 0.001) and cognitive/sensory ability (β = 0.10, p = 0.001) components.

Conclusions

The main SR aspect that impacts health status was loneliness. The results of this study suggest the importance of developing public health policies oriented to promoting action on the SR characteristics that enhance older people’s health.
Hot-spots of HIV infection in Cameroon: a spatial analysis based on Demographic and Health Surveys data
Authors: Sandie Arsène Brunelle , Tchatchueng Mbougua Jules Brice , Nlend Anne Esther Njom , Thiam Sokhna , Nono Betrand Fesuh , Fall Ndèye Awa , Senghor Diarra Bousso , Sylla El Hadji Malick , Faye Cheikh Mbacké
Published: April 2022

Background

The Human Immunodeficiency Virus(HIV) infection prevalence in Cameroon has decreased from $$5.28\%$$

5.28
%

in 2004 to $$2.8\%$$

2.8
%

in 2018. However, this decrease in prevalence does not show disparities especially in terms of spatial or geographical pattern. Efficient control and fight against HIV infection may require targeting hotspot areas. This study aims at presenting a cartography of HIV infection situation in Cameroon using the 2004, 2011 and 2018 Demographic and Health Survey data, and investigating whether there exist spatial patterns of the disease, may help to detect hot-spots.

Methods

HIV biomarkers data and Global Positioning System (GPS) location data were obtained from the Cameroon 2004, 2011, and 2018 Demographic and Health Survey (DHS) after an approved request from the MEASURES Demographic and Health Survey Program. HIV prevalence was estimated for each sampled area. The Moran’s I (MI) test was used to assess spatial autocorrelation. Spatial interpolation was further performed to estimate the prevalence in all surface points. Hot-spots were identified based on Getis–Ord (Gi*) spatial statistics. Data analyses were done in the R software(version 4.1.2), while Arcgis Pro software tools’ were used for all spatial analyses.

Results

Generally, spatial autocorrelation of HIV infection in Cameroon was observed across the three time periods of 2004 ($$MI=0.84$$

M
I
=
0.84

, $$p-value < 0.001$$

p
-
v
a
l
u
e
<
0.001

), 2011 ($$MI=0.80$$

M
I
=
0.80

, $$p-value < 0.001$$

p
-
v
a
l
u
e
<
0.001

) and 2018 ($$MI=0.87$$

M
I
=
0.87

, $$p-value < 0.001$$

p
-
v
a
l
u
e
<
0.001

). Subdivisions in which one could find persistent hot-spots for at least two periods including the last period 2018 included: Mbéré, Lom et Djerem, Kadey, Boumba et Ngoko, Haute Sanaga, Nyong et Mfoumou, Nyong et So’o Haut Nyong, Dja et Lobo, Mvila, Vallée du Ntem, Océan, Nyong et Kellé, Sanaga Maritime, Menchum, Dounga Mantung, Boyo, Mezam and Momo. However, Faro et Déo emerged only in 2018 as a subdivision with HIV infection hot-spots.

Conclusion

Despite the decrease in HIV epidemiology in Cameroon, this study has shown that there are spatial patterns for HIV infection in Cameroon and possible hot-spots have been identified. In its effort to eliminate HIV infection by 2030 in Cameroon, the public health policies may consider these detected HIV hot-spots, while maintaining effective control in other parts of the country.
Verbal fluency as a quick and simple tool to help in deciding when to refer patients with a possible brain tumour
Authors: Zienius Karolis , Ozawa Mio , Hamilton Willie , Hollingworth Will , Weller David , Porteous Lorna , Ben-Shlomo Yoav , Grant Robin , Brennan Paul M.
Published: April 2022

Background

Patients with brain tumours often present with non-specific symptoms. Correctly identifying who to prioritise for urgent brain imaging is challenging. Brain tumours are amongst the commonest cancers diagnosed as an emergency presentation. A verbal fluency task (VFT) is a rapid triage test affected by disorders of executive function, language and processing speed. We tested whether a VFT could support identification of patients with a brain tumour.

Methods

This proof-of-concept study examined whether a VFT can help differentiate patients with a brain tumour from those with similar symptoms (i.e. headache) without a brain tumour. Two patient populations were recruited, (a) patients with known brain tumour, and (b) patients with headache referred for Direct-Access Computed-Tomography (DACT) from primary care with a suspicion of a brain tumour. Semantic and phonemic verbal fluency data were collected prospectively.

Results

180 brain tumour patients and 90 DACT patients were recruited. Semantic verbal fluency score was significantly worse for patients with a brain tumour than those without (P  <  0.001), whether comparing patients with headache, or patients without headache. Phonemic fluency showed a similar but weaker difference. Raw and incidence-weighted positive and negative predictive values were calculated.

Conclusion

We have demonstrated the potential role of adding semantic VFT score performance into clinical decision making to support triage of patients for urgent brain imaging. A relatively small improvement in the true positive rate in patients referred for DACT has the potential to increase the timeliness and efficiency of diagnosis and improve patient outcomes.
Impact of post-COVID conditions on mental health: a cross-sectional study in Japan and Sweden
Authors: Matsumoto Kazuki , Hamatani Sayo , Shimizu Eiji , Käll Anton , Andersson Gerhard
Published: April 2022

Background

Due to the coronavirus disease 2019 (COVID-19) pandemic, people have undermined their mental health. It has been reported that post-COVID conditions at a certain rate. However, information on the mental health of people with post-COVID conditions is limited. Thus, this study investigated the relationship between post-COVID conditions and mental health.

Methods

Design of the present study was an International and collaborative cross-sectional study in Japan and Sweden from March 18 to June 15, 2021. The analyzed data included 763 adults who participated in online surveys in Japan and Sweden and submitted complete data. In addition to demographic data including terms related to COVID-19, psychiatric symptoms such as depression, anxiety, and post-traumatic stress were measured by using the fear of COVID-19 scale (FCV-19S), Patient Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 item (GAD-7), and Impact of Event Scale-Revised (IES-R).

Results

Of the 135 COVID-19 survivors among the 763 total participants, 37.0% (n = 50/135) had COVID-19-related sequelae. First, the results of the Bonferroni-corrected Mann Whitney U test showed that the group infected SARS-CoV-2 with post-COVID conditions scored significantly higher than those without one and the non-infected group on all clinical symptom scales (P ≤ .05). Next, there was a significant difference that incidence rates of clinical-significant psychiatric symptoms among each group from the results of the Chi-squared test (P ≤ .001). Finally, the results of the multivariate logistic model revealed that the risk of having more severe clinical symptoms were 2.44–3.48 times higher among participants with post-COVID conditions.

Conclusion

The results showed that approximately half had some physical symptoms after COVID-19 and that post-COVID conditions may lead to the onset of mental disorders.

Trial registration

The ethics committee of Chiba University approved this cross-sectional study (approval number: 4129). However, as no medical intervention was conducted, a clinical trial registration was not necessary.
Sex differences in the experience of COVID-19 post-traumatic stress symptoms by adults in South Africa
Authors: Nzimande Ntombifuthi P. , El Tantawi Maha , Zuñiga Roberto Ariel Abeldaño , Opoku-Sarkodie Richmond , Brown Brandon , Ezechi Oliver C. , Uzochukwu Benjamin S. C. , Ellakany Passent , Aly Nourhan M. , Nguyen Annie Lu , Folayan Morenike Oluwatoyin
Published: April 2022

Background

The COVID-19 pandemic has created multiple mental health challenges. Many residents in South Africa face pre-existing elevated levels of stress and the pandemic may have had varying impacts on sub-populations. The aims of this study were to determine: 1) the factors associated with post-traumatic stress symptoms (PTSS) and 2) sex differences in the factors associated with PTSS in adults residing in South Africa during the COVID-19 pandemic.

Methods

Study participants aged 18 years and above, were recruited for this cross-sectional study through an online survey implemented from June 29, 2020 to December 31, 2020. The outcome variable was PTSS; explanatory variables were sex at birth, COVID-19 status, social isolation and access to emotional support. Confounders considered were age, education level completed and current work status. Logistic regressions were used to determine the association between the outcome and explanatory variables after adjusting for confounders.

Outcomes

There were 489 respondents. Among all respondents, those who were older (AOR: 0.97; 95% CI: 0.95 – 0.99) and had access to emotional support from family and relatives (AOR: 0.27; 95% CI: 0.14 – 0.53) had significantly lower odds of PTSS. Respondents who felt socially isolated had higher odds of PTSS (AOR: 1.17; 95% CI: 1.08 – 1.27). Females had higher PTSS scores and higher odds of PTSS compared to males (AOR: 2.18; 95% CI: 1.41-3.39). Females (AOR: 0.27; 95% CI: 0.08 – 0.95) and males (AOR: 0.26; 95% CI: 0.11, 0.59) who had access to emotional support had significantly lower odds of PTSS than those who had no support. Females (AOR: 1.15; 95% CI: 1.04 -1.27) and males (AOR: 1.19; 95% CI: 0.11, 0.59) who felt socially isolated had higher odds of PTSS compared to those who did not feel socially isolated.

Interpretation

Compared to males, females had higher scores and higher odds of reporting PTSS during the COVID-19 pandemic. Access to emotional support ameliorated the odds of having PTSS for both sexes, while feeling socially isolated worsened the odds for both sexes.
The significance of serum S100 calcium-binding protein A4 in silicosis
Authors: Zhang Jing , Yuan Cuifang , Li Enhong , Guo Yiming , Cui Jie , Liu Heliang , Hao Xiaohui , Guo Lingli
Published: April 2022

Background

Silicosis is a chronic occupational pulmonary disease characterized by persistent inflammation and irreversible fibrosis. Considerable evidences now indicate that S100 calcium-binding protein A4 (S100A4) has been associated with fibrotic diseases. However, the role of S100A4 in silicosis is still unclear.

Methods

In this study, serum levels of S100A4, transforming growth factor-β1 (TGF-β1), connective tissue growth factor (CTGF), interleukin-6 (IL-6) and tumour necrosis factor-α (TNF-α) in patients with silicosis (n = 42) and control group (CG, n = 12) were measured by ELISA. S100A4 expression in lung tissues and primary alveolar macrophages (AMs) of mice with and without silicosis was detected by immunohistochemistry (IHC)/real-time PCR. The correlations between S100A4 and cytokines or lung function were assessed by Spearman's rank correlation analyses.

Results

Compared with CG, the levels of S100A4 were significantly increased in silicosis patients (70.84 (46.22, 102.46) ng/ml vs (49.84 (42.86, 60.02) ng/ml). The secretions of TGF-β1, CTGF, IL-6 and TNF-α in silicosis group were significantly higher than that in control group (p < 0.05). Serum S100A4 levels were positively correlated with TGF-β1 and IL-6, while were negatively correlated with lung function parameters including percentage of predicted forced vital capacity (FVC%pre), maximum vital capacity (Vcmax), deep inspiratory capacity (IC) and peak expiratory flow at 75% of vital capacity (PEF75). In receiver operating characteristic (ROC) analyses, S100A4 > 61.7 ng/ml had 63.4% sensitivity and 83.3% specificity for silicosis, and the area under the curve (AUC) was 0.707. Furthermore, immunostaining of lung tissues showed the accumulation of S100A4-positive cells in the areas of nodules of silicotic mice. The mRNA expression of S100A4 in the lung tissues and AMs of silicotic mice were significantly higher than controls.

Conclusion

These data suggested that increased S100A4 might contribute to the pathogenesis of silicosis.
Living with a frozen shoulder – a phenomenological inquiry
Authors: Lyne Suellen Anne , Goldblatt Fiona Mary , Shanahan Ernst Michael
Published: April 2022

Background

Frozen shoulder (adhesive capsulitis) is an inflammatory condition affecting the capsule of the glenohumeral joint. It is characterised by a painful restricted range of passive and active movement in all planes of motion. The impact of frozen shoulder on affected individuals remains poorly characterised. In this study we sought to better understand the lived experience of people suffering from frozen shoulder to characterise the physical, psychological and socioeconomic impact of the condition.

Methods

A qualitative study using a phenomenological approach was undertaken. Purposeful sampling was used to identify individuals for interview. Semi-structured interviews were performed and continued until saturation was achieved. A biopsychosocial framework was used during the analysis in order to generate themes which best described the phenomenon and reflected the lived experience of individuals’ suffering from this condition.

Results

Ten interviews were conducted, and five main themes emerged including; the severity of the pain experience, a loss of independence, an altered sense of self, the significant psychological impact, and the variable experience with healthcare providers.

Conclusions

These findings offer an insight into the lived experience of individuals with frozen shoulder, both on a personal and sociocultural level. The pain endured has profound impacts on physical and mental health, with loss of function resulting in a narrative reconstruction and altered sense of self. Our findings illustrate that frozen shoulder is much more than a benign self-limiting musculoskeletal condition and should be managed accordingly.

Trial registration

ANZCTR 12620000677909 Registered 28/04/2020 https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=379719&isReview=true
Potential biomarkers that discriminate rheumatoid arthritis and osteoarthritis based on the analysis and validation of datasets
Authors: Kang Le , Dai Chengqian , Wang Lihong , Pan Xinling
Published: April 2022

Background

Rheumatoid arthritis (RA) and osteoarthritis (OA) share some similar arthritic symptoms, but different mechanisms underlie the pathogenesis of these two diseases. Analysis of differentially expressed molecules in rheumatoid arthritis and osteoarthritis may assist in improving diagnosis and treatment strategies in clinical practice.

Methods

Microarray and RNA-seq data were acquired from the gene expression omnibus database. Differentially expressed genes (DEGs) were identified using Bioconductor packages. Receiver operating characteristic curves were plotted to assess performance. Gene ontology enrichment analysis was conducted using the clusterProfiler application. During validation, synovial fluid was harvested from patients who had undergone in-hospital joint replacement, in which the expression of proteins was measured using enzyme-linked immunosorbent assays.

Results

Compared with OA samples, RA samples showed 14 genes to be upregulated and 3 to be downregulated. Gene ontology analysis indicated that DEGs principally included molecules responsible for the regulation of a synovial tissue inflammatory response. Seven genes displayed a good discriminatory power with an AUC higher than 0.90. ADAMDEC1 was the biomarker that most clearly discriminated RA from OA in the database, exhibiting an AUC of 0.999, a sensitivity of 100%, and a specificity of 97.8%. Following validation, the expression levels of ADAMDEC1 in the synovial fluid from RA patients were significantly higher than those in the synovial fluid from OA patients (P < 0.05). At the cut-off value of 1957 pg/mL, ADAMDEC1 expression in the synovial fluid discriminated RA from OA with an AUC of 0.951, a specificity of 88.6%, and a sensitivity of 92.9%.

Conclusion

The differential expression of genes in RA compared with OA indicates potential targets for molecular diagnosis and treatment. The presence of ADAMDEC1 in synovial fluid is a good biomarker of RA.
Dynamic Tendon Grip (DTG™) novel knot array compared to traditional sutures for zone two flexor tendon injury – a biomechanical feasibility study
Authors: Kadar Assaf , Fainzack Alon , Vigler Mordechai
Published: April 2022

Background

Flexor tendon injuries pose many challenges for the treating surgeon, the principal of which is creating a strong enough repair to allow early active motion, preserving a low-profile of the repair to prevent buckling and subsequent pulley venting. A main concern is that a low-profile repair is prone to gap formation and repair failure. The Dynamic Tendon Grip (DTG™) all suture staple device claims to allow a strong and low-profile repair of the flexor tendon. The purpose of this study is to test the effects of the DTG™ device in early active motion simulation on range of motion, load to failure and gap formation and to compare it to traditional suturing technique.

Methods

Twelve fresh-frozen cadaveric fingers were assigned to two groups: DTG™ device (n = 9) and traditional suturing (double Kessler 4-core suture and a peripheral suture, n = 3). The deep flexor was incised and repaired in zone 2, and active motion simulation was carried out with a cyclic flexion–extension machine. Finger range of motion and gap formation were measured, as well as load to failure and method of repair failure.

Results

Following motion simulation, ROM decreased from 244.0 ± 9.9° to 234.5 ± 5.8° for the DTG™ device compared to 234.67 ± 6.51° to 211.67 ± 10.50° for traditional suturing. The DTG™ repair demonstrated gap formation of 0.93 ± 0.18 mm in 3 of 8 specimens after applying 1 kg load, which negated after load removal. Load to failure averaged 76.51 ± 23.15 N for DTG™ and 66.31 ± 40.22 N for the traditional repair. Repair failure occurred as the suture material broke for the DTG™ array and at the knot level for the traditional repair.

Conclusions

The DTG™ all-suture stapling concept achieved a strong low-profile repair in zone 2 flexor tendon injury after active motion simulation. Further clinical studies will be needed to determine the effectiveness of this device compared to traditional techniques.
Association between serum vitamin A levels and premature ovarian insufficiency: a case–control, cross-sectional survey study
Authors: Chen Peiqiong , Song Yang , Xu Wenxian , Huang Yizhou , Jia Yingxian , Li Chunming , Lan Yibing , Chu Ketan , Ma Linjuan , Zhou Jianhong
Published: April 2022

Background

Although vitamin A is known to play an important role in ovarian function, its association with ovarian insufficiency has not been reported yet. Therefore, the aim of the study was to explore the association between serum vitamin A levels and premature ovarian insufficiency (POI).

Methods

This cross-sectional survey included women with POI (n = 47) and normo-ovulatory controls (n = 67) who were enrolled between December 2016 and May 2018 in Zhejiang, China. The serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), anti-Müllerian hormone (AMH), vitamin A, and total cholesterol (TC) were measured for each participant. The association of TC-adjusted vitamin A levels with the risk of POI was assessed using binary logistic regression analysis.

Results

Serum vitamin A levels appeared to be slightly higher in the POI group than in the control group, but there was no evidence of a statistically significant difference (728.00 ± 176.00 µg/L vs. 503.93 ± 145.64 µg/L, p = 0.13). After adjustment for serum lipid levels, the serum vitamin A/TC ratio was significantly lower in the POI group than in the control group (143.14 ± 35.86 vs. 157.56 ± 35.21 µg/mmol, p = 0.04). Further, the serum vitamin A/TC ratio was significantly and inversely associated with POI risk (unadjusted odds ratio [OR] = 0.988, 95% confidence interval [CI]: 0.977–0.999, p = 0.04). The association remained after adjusting for confounding factors (age, BMI, annual household income, and education) (OR = 0.986, 95% CI: 0.972–0.999, p = 0.04).

Conclusions

Serum vitamin A/TC ratio was inversely associated with POI risk. Therefore, the serum vitamin A/TC ratio may serve as a predictive factor for POI, and vitamin A supplementation may play help prevent or treat POI.
The perceptions and experiences of medical students in a pediatric buddy program: a qualitative study
Authors: Nayman Candace , Do Jeffrey , Goodbaum Alexa , Eady Kaylee , Moreau Katherine
Published: April 2022

Background

Partnership programs between medical students and patients provide students with non-clinical experiences that enhance medical learning, especially with respect to humanistic care. We explored the perceptions and experiences of medical students in a pediatric oncology buddy program.

Methods

Using a basic interpretive qualitative approach, we conducted interviews with 15 medical students at three time points: before meeting his/her buddy (pre-interview), four months into the partnership (4-month interview), and at the end of the partnership (post interview). We then conducted a thematic analysis of the interview data.

Results

All students in the program who met the study criteria (N = 15/16) participated. The medical students highlighted that: (a) providing support to buddies and their families is important; (b) providing care to children with serious illnesses is emotionally difficult; (c) developing deep connections with buddies and their families is rewarding; and (d) gaining empathy and personal fulfillment from buddies and their families is inevitable.

Conclusions

This study provides an understanding of medical students’ perceptions and experiences in a pediatric oncology, non-clinical buddy program. Tailored one-on-one partnerships between medical students and pediatric oncology patients play an important role in medical education and contributes to the teaching of humanistic care.
Planned or emergent? An evaluation of a Master’s in Health Professions Education programme
Authors: Archer Elize , van Schalkwyk Susan Camille , Volschenk Mariette , Schmutz Anna Maria Susanna
Published: April 2022

Background

Programme developers have the responsibility of ongoing programme renewal and evaluation to ensure that curricula remain responsive to rapidly changing educational and healthcare contexts. In reporting on programmes, significant emphasis is often placed on content and outcomes of Master’s in Health Professions Education (MHPE) programmes. However, less emphasis has been placed on meaningful evaluation of all aspects of these programmes, particularly from a student perspective including what worked and what needs to be enhanced, as well as any emergent or unplanned factors. As the number of established MHPE programmes increases, so does the need for evaluation models that consider programme complexity. In this article we consider a MHPE programme against a model that provided scope for going beyond ‘did it work?’ Our intention was to determine whether the renewed MPhil in HPE programme was implemented as planned, and to which extent it achieved the planned outcomes.

Methods

This programme evaluation was conducted in an interpretive paradigm. We collected qualitative data at two points. Firstly, at the start of students’ first-year with voluntary participation in focus groups and secondly, a year later with voluntary participation in individual interviews. Two members of the research team performed the initial thematic analysis of both the focus group interviews and the individual interviews. Thereafter, the full author team worked collaboratively discussing the themes until we reached consensus, looking specifically to identify any “emergent” factors.

Results

We identified three themes in the student data related to the process of implementing the new programme and the outcomes from it, including those aspects that could be regarded as emergent or unplanned: balancing work, personal lives and studies; managing the hybrid learning approach; and the scholarly journey.

Conclusions

While many of the outcomes of the renewed programme were met, not all manifested as had been planned. The experience of the programme differed from one student to the next such that at the end of the two years they were at different points in their scholarly journeys. We realised that although we sought to be pedagogically sound in the process of curriculum renewal, we did not take into account the complex matrix of influences that sit outside the formal curriculum. Future renewal activities should intentionally and sensitively consider those factors, both planned and emergent, that influence a student’s journey towards becoming a scholarly teacher and teaching scholar.
MSAL-Net: improve accurate segmentation of nuclei in histopathology images by multiscale attention learning network
Authors: Ali Haider , Haq Imran ul , Cui Lei , Feng Jun
Published: April 2022

Background

The digital pathology images obtain the essential information about the patient’s disease, and the automated nuclei segmentation results can help doctors make better decisions about diagnosing the disease. With the speedy advancement of convolutional neural networks in image processing, deep learning has been shown to play a significant role in the various analysis of medical images, such as nuclei segmentation, mitosis detection and segmentation etc. Recently, several U-net based methods have been developed to solve the automated nuclei segmentation problems. However, these methods fail to deal with the weak features representation from the initial layers and introduce the noise into the decoder path. In this paper, we propose a multiscale attention learning network (MSAL-Net), where the dense dilated convolutions block captures more comprehensive nuclei context information, and a newly modified decoder part is introduced, which integrates with efficient channel attention and boundary refinement modules to effectively learn spatial information for better prediction and further refine the nuclei cell of boundaries.

Results

Both qualitative and quantitative results are obtained on the publicly available MoNuseg dataset. Extensive experiment results verify that our proposed method significantly outperforms state-of-the-art methods as well as the vanilla Unet method in the segmentation task. Furthermore, we visually demonstrate the effect of our modified decoder part.

Conclusion

The MSAL-Net shows superiority with a novel decoder to segment the touching and blurred background nuclei cells obtained from histopathology images with better performance for accurate decoding.
Effectiveness of registered nurses on system outcomes in primary care: a systematic review
Authors: Lukewich Julia , Asghari Shabnam , Marshall Emily Gard , Mathews Maria , Swab Michelle , Tranmer Joan , Bryant-Lukosius Denise , Martin-Misener Ruth , Norful Allison A. , Ryan Dana , Poitras Marie-Eve
Published: April 2022

Background

Internationally, policy-makers and health administrators are seeking evidence to inform further integration and optimal utilization of registered nurses (RNs) within primary care teams. Although existing literature provides some information regarding RN contributions, further evidence on the impact of RNs towards quality and cost of care is necessary to demonstrate the contribution of this role on health system outcomes. In this study we synthesize international evidence on the effectiveness of RNs on care delivery and system-level outcomes in primary care.

Methods

A systematic review was conducted in accordance with Joanna Briggs Institute methodology. Searches were conducted in CINAHL, MEDLINE Complete, PsycINFO, and Embase for published literature and ProQuest Dissertations and Theses and MedNar for unpublished literature between 2019 and 2022 using relevant subject headings and keywords. Additional literature was identified through Google Scholar, websites, and reference lists of included articles. Studies were included if they measured effectiveness of a RN-led intervention (i.e., any care/activity performed by a primary care RN within the context of an independent or interdependent role) and reported outcomes of these interventions. Included studies were published in English; no date or location restrictions were applied. Risk of bias was assessed using the Integrated Quality Criteria for Review of Multiple Study Designs tool. Due to the heterogeneity of included studies, a narrative synthesis was undertaken.

Results

Seventeen articles were eligible for inclusion, with 11 examining system outcomes (e.g., cost, workload) and 15 reporting on outcomes related to care delivery (e.g., illness management, quality of smoking cessation support). The studies suggest that RN-led care may have an impact on outcomes, specifically in relation to the provision of medication management, patient triage, chronic disease management, sexual health, routine preventative care, health promotion/education, and self-management interventions (e.g. smoking cessation support).

Conclusions

The findings suggest that primary care RNs impact the delivery of quality primary care, and that RN-led care may complement and potentially enhance primary care delivered by other primary care providers. Ongoing evaluation in this area is important to further refine nursing scope of practice policy, determine the impact of RN-led care on outcomes, and inform improvements to primary care infrastructure and systems management to meet care needs.

Protocol registration ID

PROSPERO: International prospective register of systematic reviews. 2018. ID=CRD42018090767.
Health care providers’ responses to sexually abused children and adolescents: a systematic review
Authors: Rahnavardi Mona , Shahali Shadab , Montazeri Ali , Ahmadi Fazlollah
Published: April 2022

Background

Sexual abuse of children and adolescents is a significant health concern worldwide. Appropriate and timely health services for victims can prevent severe and long-term consequences. This study identified and categorized diagnostic and treatment services needed for sexually abused children and adolescents.

Methods

Several databases, including MEDLINE, Web of Science, Scopus, Science Direct, ProQuest, and Google Scholar, were searched to retrieve studies on the topic and clinical guidelines in English covering the literature from 2010 to 2020 using search terms. Primary studies and guidelines were reviewed to identify treatment strategies and medical interventions related to sexually abused children and adolescents.

Results

Twenty-one studies and guidelines were selected and analyzed narratively. The quality of evidence was relatively good. We identified that effective health care systems for sexually abused children include the following: interview and obtain medical history, physical and anogenital examination, collecting forensic and DNA evidence, documenting all the findings, prevention and termination of pregnancy, diagnostic tests, prophylaxis for HIV and other STIs, vaccinations, and psychological intervention.

Conclusions

This review provides up-to-date evidence about adequate health care services for children and adolescent victims of sexual abuse. We conclude that recent studies have focused more on prophylaxis against HIV and other STIs, studies on vaccinating against HPV for victims are still limited, and future research in this area is needed.
Meaningful use of a digital platform and structured telephone support to facilitate remote person-centred care – a mixed-method study on patient perspectives
Authors: Barenfeld Emmelie , Fuller Joanne M. , Wallström Sara , Fors Andreas , Ali Lilas , Ekman Inger
Published: April 2022

Background

Process evaluations are useful in clarifying results obtained from randomised controlled trials (RCTs). Traditionally, the degree of intervention usage in process evaluations is monitored by measuring dose or evaluating implementation fidelity. From a person-centred perspective, such evaluations should be supplemented with patients’ experiences of meaningful use, given that intervention use should be agreed upon between interested parties and tailored to each patient. This study aimed to elucidate patients’ experiences of a remote person-centred care (PCC) intervention by deepening the understanding of, if, how and for whom the intervention contributed to meaningful use.

Methods

Patients (n = 86) were recruited from the RCT PROTECT intervention group. A convergent mixed-method approach was implemented. Data were collected in parallel with the ongoing RCT via a survey, including ratings and written comments on meaningful or non-meaningful use. Also, interviews were performed with twelve purposefully selected participants. Descriptive statistics, logistic regression and content analysis were employed. Data sources were integrated in the results.

Results

Most participants rated the overall intervention as meaningful to use, with the telephone support rated as most meaningful. Interviews and written comments showed that patient ratings on meaningful use were explained by four categories: Not in need, Communication deficiency, Benefits in everyday life and A personal boost. Meaningful use of rating symptoms on the digital platform was predicted by living alone (adjusted odds ratio [aOR] = 2.8 P = .044). A diagnosis of chronic obstructive pulmonary disease (COPD) predicted meaningful use of digital platform direct messaging (aOR = 3.5, P = .045). Moreover, having access to direct-dial telephone contact explained meaningful use among participants with low ratings of technical competence (aOR = 3.6, P = .014).

Conclusions

The combined digital platform and structured telephone support could be helpful in identifying preventive actions to maintain health for people diagnosed with COPD and chronic heart failure but tends to be more meaningful for those diagnosed with COPD. Overall, lower adoption of the digital platform was seen compared to telephone support. Shortcomings were noted in the digital platform’s implementation that negatively influences experiences of meaningful use. When used, the intervention proved to be an easily applicable and valued tool to support preventive actions in a person-centred manner.
Impact of end-of-life respiratory modalities on quality of dying and death and symptom relief in patients with interstitial lung disease: a multicenter descriptive cross-sectional study
Authors: Koyauchi Takafumi , Suzuki Yuzo , Sato Kazuki , Hozumi Hironao , Karayama Masato , Furuhashi Kazuki , Fujisawa Tomoyuki , Enomoto Noriyuki , Nakamura Yutaro , Inui Naoki , Yokomura Koshi , Imokawa Shiro , Nakamura Hidenori , Morita Tatsuya , Suda Takafumi
Published: April 2022

Background

Respiratory modalities applied at the end of life may affect the burden of distressing symptoms and quality of dying and death (QODD) among patients with end-stage interstitial lung disease (ILD); however, there have been few studies into respiratory modalities applied to these patients near death. We hypothesized that high-flow nasal cannula (HFNC) might contribute to improved QODD and symptom relief in patients with end-stage ILD.

Objectives

This multicenter study examined the proportion of end-of-life respiratory modalities in a hospital setting and explored its impact on QODD and symptom relief among patients dying with ILD.

Methods

Consecutive patients with ILD who died in four participating hospitals in Japan from 2015 to 2019 were identified and divided into four groups according to end-of-life respiratory modality: conventional oxygen therapy (COT), HFNC, non-invasive ventilation (NIV), and invasive mechanical ventilation (IMV). In addition, a mail survey was performed to quantify the QODD and symptom relief at their end of life from a bereaved family’s perspective. QODD and symptom relief were quantified using the Good Death Inventory (GDI) for patients with a completed bereavement survey. The impact of end-of-life respiratory modalities on QODD and symptom relief was measured by multivariable linear regression using COT as a reference.

Results

Among 177 patients analyzed for end-of-life respiratory modalities, 80 had a completed bereavement survey. The most common end-of-life respiratory modality was HFNC (n = 76, 42.9%), followed by COT (n = 62, 35.0%), NIV (n = 27, 15.3%), and IMV (n = 12, 6.8%). Regarding the place of death, 98.7% of patients treated with HFNC died outside the intensive care unit. Multivariable regression analyses revealed patients treated with HFNC had a higher GDI score for QODD [partial regression coefficient (B) = 0.46, 95% CI 0.07–0.86] and domain score related to symptom relief (B = 1.37, 95% CI 0.54–2.20) than those treated with COT.

Conclusion

HFNC was commonly used in patients with end-stage ILD who died in the hospital and was associated with higher bereaved family ratings of QODD and symptom relief. HFNC might contribute to improved QODD and symptom relief in these patients who die in a hospital setting.