bluuebunny/crossref_metadata_2025 huggingface dataset:
Spatial-time analysis of cardiovascular emergency medical requests: enlightening policy and practice
Authors: Azimi Ali , Bagheri Nasser , Mostafavi Sayyed Mostafa , Furst Mary Anne , Hashtarkhani Soheil , Amin Fateme Hashemi , Eslami Saeid , Kiani Fatemeh , VafaeiNezhad Reza , Akbari Toktam , Golabpour Amin , Kiani Behzad
Published: January 2021

Background

Response time to cardiovascular emergency medical requests is an important indicator in reducing cardiovascular disease (CVD) -related mortality. This study aimed to visualize the spatial-time distribution of response time, scene time, and call-to-hospital time of these emergency requests. We also identified patterns of clusters of CVD-related calls.

Methods

This cross-sectional study was conducted in Mashhad, north-eastern Iran, between August 2017 and December 2019. The response time to every CVD-related emergency medical request call was computed using spatial and classical statistical analyses. The Anselin Local Moran’sIwas performed to identify potential clusters in the patterns of CVD-related calls, response time, call-to-hospital arrival time, and scene-to-hospital arrival time at small area level (neighborhood level) in Mashhad, Iran.

Results

There were 84,239 CVD-related emergency request calls, 61.64% of which resulted in the transport of patients to clinical centers by EMS, while 2.62% of callers (a total of 2218 persons) died before EMS arrival. The number of CVD-related emergency calls increased by almost 7% between 2017 and 2018, and by 19% between 2017 and 2019. The peak time for calls was between 9 p.m. and 1 a.m., and the lowest number of calls were recorded between 3 a.m. and 9 a.m. Saturday was the busiest day of the week in terms of call volume. There were statistically significant clusters in the pattern of CVD-related calls in the south-eastern region of Mashhad. Further, we found a large spatial variation in scene-to-hospital arrival time and call-to-hospital arrival time in the area under study.

Conclusion

The use of geographical information systems and spatial analyses in modelling and quantifying EMS response time provides a new vein of knowledge for decision makers in emergency services management. Spatial as well as temporal clustering of EMS calls were present in the study area. The reasons for clustering of unfavorable time indices for EMS response requires further exploration. This approach enables policymakers to design tailored interventions to improve response time and reduce CVD-related mortality.
The effects of a leaflet-based health guide on health literacy, self-efficacy, and satisfaction among older Japanese-Brazilian adults living in Brazil: A quasi-experimental study
Authors: Doi-Kanno Mana , Kanoya Yuka , Moriguchi Emilio Hideyuki
Published: January 2021

Background

This study assessed the effects of a Japanese leaflet-based health guide for older Japanese-Brazilian adults living in Brazil, on health literacy, self-efficacy, and satisfaction with the health guide and participants’ subjective health status.

Methods

The study followed a one-group pretest-posttest design and was set in the Japanese-Brazilian community in South Brazil. The 21 participants were Japanese-Brazilian individuals aged over 65 years, living in Brazil, and able to converse in Japanese. During the annual health checkup of 2016, we provided about 20 min of health guidance in Japanese using our leaflet, which included information about lifestyle-related diseases, recommended salt and sugar intake levels, and graphical charts. Participants’ health literacy (HL) was the primary outcome; self-efficacy and satisfaction with the leaflet-based health guide and participants’ subjective health status were secondary outcomes. We assessed the effect after completion of the health checkups in 2016 and 2017. Data were analyzed using repeated measures of ANOVA and the Bonferroni multiple comparison test as required.

Results

There were no statistical significant differences in HL (functional HL: p-value = 0.22; communicative HL: p-value = 0.17; critical HL: p-value = 0.40; total HL score: p-value = 0.12) and self-efficacy (p-value = 0.28) across the three assessment points. We detected a statistical significant difference in satisfaction with the health guide, post-intervention in 2016 and 2017 (baseline score: 86.7±20.4; post-intervention score in 2016: 92.5±12.2; post-intervention score in 2017: 76.2±21.9; p-value of repeated ANOVA < 0.01, ηp2 = 0.28; p-value of the multiple comparison in 2016 and 2017 = 0.01, 95% CI 4.09–28.51). However, the Bonferroni multiple comparison test did not show pairwise difference during multiple comparisons of participants’ satisfaction with their subjective health status (scores: baseline, 69.6±24.2; post-intervention in 2016, 78.5±21.1; post-intervention in 2017, 58.0±31.1; p-value of repeated ANOVA = 0.02, ηp2 = 0.21; p-values of the multiple comparisons> 0.05). Scores of all outcomes, except self-efficacy, increased from baseline to post-intervention in 2016, but declined at post-intervention in 2017.

Conclusions

The leaflet-based intervention appeared to have short-term effects. The findings suggest that direct intervention in older adults’ native language may improve their satisfaction when living in non-native countries.

Trial registration

The UMIN-CTR unique registration ID is UMIN000032443. Retrospectively registered on May 1, 2018, at: https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000036999.
Accuracy of fluoroscopic examination in the treatment of Bennett’s fracture
Authors: Yin Yaobin , Wang Yanqing , Wang Zhilong , Qu Wenrui , Tian Wen , Chen Shanlin
Published: January 2021

Background

Restoration of joint congruity is an important factor for the prevention of subsequent arthritis in patients with Bennett’s fracture. Surgical treatment of Bennett’s fracture is thus generally recommended for displaced intra-articular fractures to the proximal aspect of the thumb metacarpal. Fluoroscopic examination is used to evaluate the adequacy of closed reduction after pinning of Bennett’s fracture. The purpose of this study was to determine the accuracy of fluoroscopy to determine the reduction of Bennett’s fractures.

Methods

A model was created, to mimic a Bennett’s fracture utilizing ten fresh-frozen cadaveric hands. An oblique cut was made in the proximal aspect of the thumb metacarpal using an oscillating saw. The small oblique fragment involved 1/4–1/3 of the joint surface was then shifted in position creating a step-off or gap at the fracture site. An anatomical reduction model, gap models (1 mm, 2 mm, 3 mm), and step-off models (1 mm, 2 mm, 3 mm) were created using percutaneous fixation with two 1.0 mm Kirschner wires for each cadaveric hand. Fluoroscopic assessment then took place and was reviewed by 2 attending hand surgeons blinded to the actual position. Their estimated fluoroscopic position was then compared to the actual displacement.

Results

The step-off and gap on fluoroscopic examination showed a significant difference compared to the step-off and gap from direct visualization. The frequency of underestimation for the 3 mm displacement models from the fluoroscopic examination was 60%. The frequency for overestimated was 9% for the models in which displacement was within 2 mm (0, 1, 2 mm).

Conclusions

The assessment of articular gap and step-off using PA (postero-anterior), AP (antero-posterior), and lateral view of fluoroscopic examination is not accurate as compared to the examination by direct visualization. Surgeons need to be aware that PA, AP and lateral view of fluoroscopic examination alone may not be sufficient to judge the final position of a reduced Bennett’s fracture. Other methods such as live fluoroscopy in multiple different planes, 3-dimensional fluoroscopy or arthroscopic examination should be considered.
Phlegmonous gastritis complicated by abdominal compartment syndrome: a case report
Authors: Modares Mana , Tabari Mohammad
Published: January 2021

Background

Phlegmonous gastritis (PG) is a rare, suppurative bacterial infection of the gastric wall, which may rapidly evolve into fatal septicemia. The etiology and pathogenesis are poorly understood; however, multiple risk factors have been cited in current literature. Most cases have been diagnosed at autopsy, and occasionally at laparotomy, as the clinical presentation is often variable.

Case presentation

We report a case of a 67-year-old male presenting with intractable nausea, vomiting, and epigastric pain following an uneventful upper gastrointestinal (GI) endoscopy. Diagnostic workup including contrast tomography (CT) and endoscopic assessment was in keeping with PG. This was subsequently followed by development of abdominal compartment syndrome (ACS) and clinical deterioration necessitating surgical resection of the stomach.

Conclusion

This case emphasizes the importance of early diagnosis of this potentially fatal infection that can follow endoscopic procedures and illustrates ACS and septic shock as serious complications. There is currently no consensus on the proper management of PG; however, in this case, a combination of surgery and antibiotics provided a favourable outcome. Limited number of cases of PG have been reported in literature, and to our knowledge, this is the first reported case of PG with subsequent ACS as an acute complication.
Evaluating a multidimensional strategy to improve the professional self-care of occupational therapists working with people with life limiting illness
Authors: Apostol Courtney , Cranwell Kathryn , Hitch Danielle
Published: January 2021

Background

The term ‘life limiting conditions’ refers to premature death following decline from chronic conditions, which is a common circumstance in which occupational therapists work with people at the end of life. The challenges for clinicians of working with these patients have long been recognised, and may have a significant impact on their professional self-care. This study aimed to evaluate a multidimensional workplace strategy to improve the professional self-care of occupational therapists working with people living with a life limiting condition.

Methods

A pre and post mixed methods survey approach were utilised, with baseline data collection prior to the implementation of a multidimensional workplace strategy. The strategy included professional resilience education, targeted supervision prompts, changes to departmental culture and the promotion of self-care services across multiple organisational levels. Follow up data collection was undertaken after the strategy had been in place for 2 years. Quantitative data were analysed descriptively, while qualitative data were subjected to thematic analysis.

Results

One hundred three occupational therapists responded (n = 55 pre,n = 48 post) across multiple service settings. Complex emotional responses and lived experiences were identified by participants working with patients with life limiting conditions, which were not influenced by the workplace strategy. Working with these patients was acknowledged to challenge the traditional focus of occupational therapy on rehabilitation and recovery. Participants were confident about their ability to access self-care support, and supervision emerged as a key medium. While the strategy increased the proportion of occupational therapists undertaking targeted training, around half identified ongoing unmet need around professional self-care with this patient group. Demographic factors (e.g. practice setting, years of experience) also had a significant impact on the experience and needs of participants.

Conclusions

The multidimensional workplace strategy resulted in some improvements in professional self-care for occupational therapists, particularly around their use of supervision and awareness of available support resources. However, it did not impact upon their lived experience of working with people with life limiting conditions, and there remain significant gaps in our knowledge of support strategies for self-care of occupational therapist working with this patient group.
Health-related expectations of the chronically critically ill: a multi-perspective qualitative study
Authors: Howard A. Fuchsia , Crowe Sarah , Choroszewski Laura , Kovatch Joe , Haynes Adrianne Jansen , Ford Joan , Beck Scott , Haljan Gregory J.
Published: January 2021

Background

Those who survive critical illness only to become chronically critically ill (CCI) experience a high symptom burden, repeat episodes of illness exacerbation, communication barriers, and poor health outcomes. Yet, it is unclear how CCI individuals and their family understand their health and the importance of prognostic information following hospitalization. The research purpose was to examine expectations about health and disease prognosis of CCI residents in long-term care from the perspectives of the CCI themselves and their family members, as well as to describe healthcare provider (HCP) interpretations of, and reactions to, these health-related expectations.

Methods

In this qualitative interpretive descriptive study, conducted in British Columbia, Canada, 38 semi-structured interviews were conducted (6 CCI residents, 11 family members, and 21 HCPs) and inductively analyzed using thematic and constant comparative techniques.

Results

There was divergence in CCI resident, family and HCP expectations about health and the importance of disease prognosis, which contributed to conflict. CCI residents and family viewed conflict with HCPs in relation to their day-to-day care needs, while HCPs viewed this as arising from the unrealistically high expectations of residents and family. The CCI residents and family focussed on the importance of maintaining hope, and the HCPs highlighted the complexity of end-of-life decisions in conjunction with the high expectations and hopes of family.

Conclusions

The emotional and ongoing process of formulating health-related expectations points to the need for future research to inform the development and/or adapting of existing communication, psychosocial and health services interventions to ease the burden experienced by those who are CCI.
Use of complementary and alternative therapies by patients with eye diseases: a hospital-based cross-sectional study from Palestine
Authors: Jaber Dania , Ghannam Rafat Abu , Rashed Waleed , Shehadeh Mohammad , Zyoud Sa’ed H.
Published: January 2021

Background

Generally, complementary and alternative therapies (CAT) are accepted methods of treatment by patients with various types of conditions. Their use is becoming especially prevalent among patients with eye problems even in developed countries. Thus, we aimed to determine the pattern of use of CAT in this patient population, to identify the patient characteristics associated with the use of CAT, and to assess the types of CAT used.

Methods

A descriptive, cross-sectional study was conducted in Palestine at An-Najah National University Hospital between the time periods of October 2019 to May 2020, using questionnaire-based face to face interviews. Data were collected through convenience sampling. Patients responded to the questionnaire, which was focused on information adapted from previous research in this area, covering socio-demographic and clinical characteristics, types of CAT, source of information, and side effects on CAT use.

Results

A total of 86 patients were interviewed for our study. Over two thirds, 67% reported using CAT for the specific purpose of improving their eye condition, and about one third (29.1%) received more than one therapy. The most common therapies reported were duea’ (i.e. supplication) (47.1%) and herbal therapies (24.1%). It was shown that patients with bilateral involvement of their eyes were almost twice more likely to describe using CAT than patients with unilateral eye pathology (p = 0.006). Also, patients who underwent surgery as their route of treatment were significantly less likely to use CAT (p = 0.043). Most of our study participants mentioned a non-physician source as their source of information regarding CAT with family members being the most frequently mentioned (30.2%) followed by the internet (25.6%) and friends (19.8%).

Conclusions

The prevalence of CAT use among patients with eye disease is somewhat high in our study population. Because CAT may trigger adverse reactions, influence the progression of the disease, and interfere with conventional treatment, the ophthalmologist should frequently be asked patients with such diagnostics regarding the use of these therapies. Further work is required to analyze the mechanisms of action and to establish realistic guidelines for the use of these modalities.
Student-led research team-building program may help junior faculty increase productivity in competitive biomedical research environment
Authors: Bragg Marie , Arshonsky Joshua , Pageot Yrvane , Eby Margaret , Tucker Carolyn M. , Yin Shonna , Goldmann Emily , Jay Melanie
Published: January 2021

Background

Interdisciplinary research teams can increase productivity among academic researchers, yet many junior investigators do not have the training or financial resources to build productive teams. We developed and tested the acceptability and feasibility of three low-cost services to help junior faculty build and maintain their own research teams.

Methods

At an urban academic medical centre, we implemented three types of consultation services: 1) giving talks on evidence-based best practices for building teams; 2) providing easy-to-use team building resources via email; and 3) offering a year-long consultation service—co-led by students—that taught faculty to build and maintain research teams. Our primary outcome was the number of faculty who used each service. For the yearlong consultation service, we asked faculty participants to complete three online self-assessments to rate their leadership confidence, the team’s performance, and which of the consultation components were most helpful. We used descriptive statistics to evaluate faculty assessment scores at three timepoints by comparing median scores and interquartile ranges.

Results

We gave 31 talks on team building to 328 faculty and postdoctoral fellows from 2014 to 2020. Separately, 26 faculty heard about our research team building expertise and requested materials via email. For the consultation service, we helped build or enhance 45 research teams from 2014 to 2020. By the end of the consultation, 100% of the faculty reported they were still maintaining their team. In the initial survey, the majority of participants (95.7%, n = 22) reported having no or few experiences in building teams. Further, when asked to rate their team’s performance at 12-months, faculty highly rated many elements of both teamwork and taskwork, specifically their team’s productivity (6/7 points), morale (6/7 points), and motivation (6/7 points). By the end of the program, faculty participants also highly rated two components of the consultation program: recruitment assistance (7/10 points) and provision of team management tools (7/10 points).

Conclusions

For participating faculty, our program provided valued guidance on recruitment assistance and team management tools. The high demand for team-building resources suggests that junior faculty urgently need better training on how to develop and manage their own team.
Why so stressed? A comparative study on stressors and stress between hospital and non-hospital nurses
Authors: Muhamad Robat Rosnawati , Mohd Fauzi Mohd Fadhli , Mat Saruan Nur Adibah , Mohd Yusoff Hanizah , Harith Abdul Aziz
Published: January 2021

Background

Stress, which can be attributed to household and workplace stressors, is prevalent among nurses. However, these stressors’ attribution may differ between hospital and non-hospital nurses. It is currently unknown whether there are significant differences in the sociodemographic and occupational characteristics between hospital and non-hospital nurses which may potentially influence the type and magnitude of stressors, and subsequently the stress status. Therefore, this study aims to estimate the prevalence of stress and compare the roles of sociodemograhic characteristics, occupational profiles, workplace stressors and household stressors in determining the stress status between hospital and non-hospital female nurses in Malaysia.

Methods

This cross-sectional study was conducted among randomly-selected 715 female nurses in Malaysia using pencil-and-paper self-reported questionnaires.

Results

The majority of participants were ever married (87.0%), having children (76.2%), and work in hospital setting (64.8%). The level of household stressors was generally similar between hospital and non-hospital nurses. However, hospital nurses significantly perceived higher level of workplace stressors. Shift work is significantly associated with higher level of household and workplace stressors among nurses in both groups. The level of stress was significantly higher among hospital nurses. Both household and workplace stressors explained about 40% of stress status in both hospital and non-hospital nurses.

Conclusion

Hospital nurses are at higher risk of having stressors and stress as compared to non-hospital nurses, probably due to higher proportion of them involved in shift work. Hospital nurses should be given high priority in mitigating stress among nurses.
Factors affecting patient safety culture in terms of compliance with preventing bloodborne pathogens among general hospital nurses
Authors: Kim Na Young , Moon Kyoung Ja
Published: January 2021

Background

The present study aims to investigate the relationship between patient safety culture and the prevention of transmitting bloodborne pathogens among nurses at a general hospital.

Methods

The participants were 284 nurses working at a general hospital located in a city, and the data were collected between April 26 and May 15, 2019. Questionnaires on patient safety culture and the prevention of bloodborne pathogens were used, and SPSS version 22.0 was used for descriptive and hierarchical regression analysis.

Results

The results showed that the following factors affected the prevention of bloodborne pathogens: experience with needle stick and sharps injuries (β = − 0.94), teamwork (β = 0.41), knowledge and attitude toward patient safety (β = 0.34), leadership (β = 0.15), and priority of patient safety (β = 0.14). The model’s explanatory power was 53% (F = 32.26, p =< 0.001).

Conclusions

To increase the compliance of general hospital nurses with practices that promote the prevention of bloodborne pathogens, it is necessary to actively prevent needle sticks and sharps injuries. It is also necessary to prioritize patient safety and to develop and verify the effects of various programs that emphasize factors of patient safety culture, such as leadership, teamwork, knowledge, and attitude.
Social determinants of health and hospital readmissions: can the HOSPITAL risk score be improved by the inclusion of social factors?
Authors: Obuobi Shirlene , Chua Rhys F. M. , Besser Stephanie A. , Tabit Corey E.
Published: January 2021

Background

The HOSPITAL Risk Score (HRS) predicts 30-day hospital readmissions and is internationally validated. Social determinants of health (SDOH) such as low socioeconomic status (SES) affect health outcomes and have been postulated to affect readmission rates. We hypothesized that adding SDOH to the HRS could improve its predictive accuracy.

Methods

Records of 37,105 inpatient admissions at the University of Chicago Medical Center were reviewed. HRS was calculated for each patient. Census tract-level SDOH then were combined with the HRS and the performance of the resultant “Social HRS” was compared against the HRS. Patients then were assigned to 1 of 7 typologies defined by their SDOH and a balanced dataset of 14,235 admissions was sampled from the larger dataset to avoid over-representation by any 1 sociodemographic group. Principal component analysis and multivariable linear regression then were performed to determine the effect of SDOH on the HRS.

Results

The c-statistic for the HRS predicting 30-day readmission was 0.74, consistent with published values. However, the addition of SDOH to the HRS did not improve the c-statistic (0.71). Patients with unfavorable SDOH (no high-school, limited English, crowded housing, disabilities, and age > 65 yrs) had significantly higher HRS (p < 0.05 for all). Overall, SDOH explained 0.2% of the HRS.

Conclusion

At an urban tertiary care center, the addition of census tract-level SDOH to the HRS did not improve its predictive power. Rather, the effects of SDOH are already reflected in the HRS.
Public attitudes and health law in conflict: somatic vs. mental care, role of next of kin, and the right to refuse treatment and information
Authors: Wikstøl David , Pedersen Reidar , Magelssen Morten
Published: January 2021

Background

Norwegian law and regulations regarding patient autonomy and the use of coercion are in conflict with the Convention on the Rights of Persons with Disabilities (CRPD) and the Oviedo Convention on several points. A new law concerning the use of coercion in Norwegian health services has been proposed. In this study we wanted to investigate the attitudes of the Norwegian lay populace with regards to some of these points of conflict.

Methods

An electronic questionnaire with 9 propositions about patient autonomy, the use of coercion, the role of next of kin, and equality of rights and regulations across somatic and mental health care was completed by 1617 Norwegian adults (response rate 8.5%).

Results

A majority of respondents support the patient’s right to refuse treatment and information in serious illness, that previously expressed treatment preferences should be respected, that next of kin’s right to information and authority in clinical decision-making should be strengthened, and that this kind of legal regulations should be equal across somatic and mental health care.

Conclusions

The findings in this study suggest that the opinions of the Norwegian lay populace are in conflict with the national law on several points relating to patient autonomy, the role of next of kin and use of coercive measures, and different legal regulation of somatic vs. mental health care. The study suggests that the populace is more in line with the CRPD, which supports equal rights across somatic and mental health care, and the Oviedo Convention, which does not allow for the same degree of strong paternalism regarding coercive measures as the current Norwegian law. This can be taken to support the recently proposed legislation on the use and limitation of coercion in Norwegian health services.
Occupational identity, job satisfaction and their effects on turnover intention among Chinese Paediatricians: a cross-sectional study
Authors: Deng Wanjun , Feng Zhichun , Yao Xinying , Yang Tingting , Jiang Jun , Wang Bin , Lin Lan , Zhong Wenhao , Xia Oudong
Published: January 2021

Background

This study contributes to research on the paediatrician shortage by examining occupational identity, job satisfaction and their effects on turnover intention among paediatricians in China.

Methods

A multi-stage stratified random sampling method was employed to conduct a questionnaire survey. Of the 4906 survey recipients, valid data were collected from 4198 of the respondents (85.6%). The participants were from seven geographic regions of China (south, central, north, east, northwest, southwest, and northeast). Paediatricians who volunteered and provided written informed consent participated. All variables including basic socio-demographics and work-related characteristics, occupational identity, job satisfaction and turnover intention were based on available literature, and measured on a 5- point Likert scale. Statistical methods such as exploratory factor analysis (EFA), descriptive analysis, common method bias, one-way ANOVA test, Pearson correlation analysis and mediation analysis were used.

Results

Significant differences were observed among the respondents in terms of turnover intention based on age, education level, marital status, region, the type and grade of practice setting, professional title, years in practise, workload, rest days, and monthly income. Occupational identity and job satisfaction were both negatively related to turnover intention, and occupational identity was positively correlated with job satisfaction (r1 = − 0.601, p < 0.01; r2 = − 0.605, p < 0.01). The results also showed that job satisfaction played a mediating role in the association between occupational identity and turnover intention among Chinese paediatricians.

Conclusions

Work conditions, workload and salary are crucial factors of turnover intention among paediatricians in China. Therefore, we suggest that healthcare managers should increase investment in paediatrics, implement salary reforms and dedicate more attention to female and young paediatricians, thus reducing turnover intention among Chinese paediatricians.
The patient advisor, an organizational resource as a lever for an enhanced oncology patient experience (PAROLE-onco): a longitudinal multiple case study protocol
Authors: Pomey M. P. , de Guise M. , Desforges M. , Bouchard K. , Vialaron C. , Normandin L. , Iliescu-Nelea M. , Fortin I. , Ganache I. , Régis C. , Rosberger Z. , Charpentier D. , Bélanger L. , Dorval M. , Ghadiri D. P. , Lavoie-Tremblay M. , Boivin A. , Pelletier J. F. , Fernandez N. , Danino A. M.
Published: January 2021

Background

Quebec is one of the Canadian provinces with the highest rates of cancer incidence and prevalence. A study by the Rossy Cancer Network (RCN) of McGill university assessed six aspects of the patient experience among cancer patients and found that emotional support is the aspect most lacking. To improve this support, trained patient advisors (PAs) can be included as full-fledged members of the healthcare team, given that PA can rely on their knowledge with experiencing the disease and from using health and social care services to accompany cancer patients, they could help to round out the health and social care services offer in oncology. However, the feasibility of integrating PAs in clinical oncology teams has not been studied. In this multisite study, we will explore how to integrate PAs in clinical oncology teams and, under what conditions this can be successfully done. We aim to better understand effects of this PA intervention on patients, on the PAs themselves, the health and social care team, the administrators, and on the organization of services and to identify associated ethical and legal issues.

Methods/design

We will conduct six mixed methods longitudinal case studies. Qualitative data will be used to study the integration of the PAs into clinical oncology teams and to identify the factors that are facilitators and inhibitors of the process, the associated ethical and legal issues, and the challenges that the PAs experience. Quantitative data will be used to assess effects on patients, PAs and team members, if any, of the PA intervention. The results will be used to support oncology programs in the integration of PAs into their healthcare teams and to design a future randomized pragmatic trial to evaluate the impact of PAs as full-fledged members of clinical oncology teams on cancer patients’ experience of emotional support throughout their care trajectory.

Discussion

This study will be the first to integrate PAs as full-fledged members of the clinical oncology team and to assess possible clinical and organizational level effects. Given the unique role of PAs, this study will complement the body of research on peer support and patient navigation. An additional innovative aspect of this study will be consideration of the ethical and legal issues at stake and how to address them in the health care organizations.
Shared decision-making between health care providers and patients at a tertiary hospital diabetic Clinic in Tanzania
Authors: Vedasto Osward , Morris Baraka , Furia Francis F.
Published: January 2021

Background

Patients’ participation in decision making regarding their treatment is defined in ethical, legal and human rights standards in the provision of care that concerns health providers and the entire community. This study was conducted to document experiences of patients and health care providers on shared decision making.

Methods

This study employed a phenomenological study design using in-depth interview technique. Study participants were diabetic patients visiting the clinic and healthcare providers working at Muhimbili National Hospital. Data was collected using the semi-structured interview guide with open-ended questions using an audio digital recorder. Content analysis method was used during analysis whereby categories were reached through the process of coding assisted by Nvivo 12 software.

Results

Participants in this study expressed the role of shared decision-making in the care of patients with diabetes, with report of engagement of patients by health care providers in making treatment decisions. Participants reported no use of decision-making aids; however, health education tools were reported by participants to be used for educating patients. Limited time, patient beliefs and literacy were documented as barriers of effective engagement of patients in decision making by their healthcare providers.

Conclusion

Engagement of patients in decision-making was noted in this study as experienced by participants of this study. Time, patient beliefs and patient literacy were documented as barriers for patients engagement, therefore diabetic clinic at Muhimbili National Hospital need to devise mechanisms for ensuring patients involvement in treatment decisions.
O6-methylguanine-DNA methyltransferase modulates cisplatin-induced DNA double-strand breaks by targeting the homologous recombination pathway in nasopharyngeal carcinoma
Authors: Chen Shang-Hung , Huang Wen-Tsung , Kao Wan-Chen , Hsiao Sheng-Yen , Pan Hsin-Yi , Fang Chin-Wen , Shiue Yow-Ling , Chou Chia-Lin , Li Chien-Feng
Published: January 2021

Background

The homologous recombination (HR) pathway is involved in DNA damage response (DDR), which is crucial to cancer cell survival after treatment with DNA damage agents. O6-methylguanine DNA methyltransferase (MGMT) is associated with cisplatin (CDDP) resistance in cancer cells; however, the underlying mechanisms remain unclear. Here, we explored the interactions between MGMT and the HR pathway in CDDP-activated DDR and their clinical implications in nasopharyngeal carcinoma (NPC).

Methods

Human NPC cells were assessed using loss-of-function approaches in vitro. The expression correlations between MGMT and major proteins of the HR pathway were analyzed through Western blotting, quantitative real-time PCR, and bioinformatic analysis by using a public database. The physical interactions between MGMT and HR proteins were studied using co-immunoprecipitation and immunofluorescence analyses. Cell comet tails and γ-H2AX expression levels were examined to evaluate double-strand break (DSB) formation. Established immunofluorescence and reporter analyses were conducted to measure HR activity. Xenograft and cell viability studies were used to assess the therapeutic potential of MGMT inhibition in combination with CDDP and poly(ADP-ribose) polymerase (PARP) inhibitor, respectively.

Results

Among major proteins of the HR pathway, MGMT suppression inhibited CDDP-induced RAD51 expression. Bioinformatic analyses showed a positive correlation between MGMT and RAD51 expression in patients with NPC. Moreover, MGMT physically interacted with BRCA1 and regulated CDDP-induced BRCA1 phosphorylation (ser 988). In functional assays, MGMT inhibition increased CDDP-induced DSB formation through attenuation of HR activity. NPC xenograft studies demonstrated that MGMT inhibition combined with CDDP treatment reduced tumor size and downregulated RAD51 expression and BRCA1 phosphorylation. Furthermore, MGMT suppression increased PARP inhibitor–induced cell death and DSB formation in NPC cells.

Conclusion

MGMT is crucial in the activation of the HR pathway and regulates DDR in NPC cells treated with CDDP and PARP inhibitor. Thus, MGMT is a promising therapeutic target for cancer treatments involving HR-associated DDR.
Targeting Lymphotoxin Beta and Paired Box 5: a potential therapeutic strategy for soft tissue sarcoma metastasis
Authors: Huang Runzhi , Zeng Zhiwei , Yan Penghui , Yin Huabin , Zhu Xiaolong , Hu Peng , Zhuang Juanwei , Li Jiaju , Li Siqi , Song Dianwen , Meng Tong , Huang Zongqiang
Published: January 2021

Background

Soft tissue sarcomas (STS) has a high rate of early metastasis. In this study, we aimed to uncover the potential metastasis mechanisms and related signaling pathways in STS with differentially expressed genes and tumor-infiltrating cells.

Methods

RNA-sequencing (RNA-seq) of 261 STS samples downloaded from the Cancer Genome Atlas (TCGA) database were used to identify metastasis-related differentially expressed immune genes and transcription factors (TFs), whose relationship was constructed by Pearson correlation analysis. Metastasis-related prediction model was established based on the most significant immune genes. CIBERSORT algorithm was performed to identify significant immune cells co-expressed with key immune genes. The GSVA and GSEA were performed to identify prognosis-related KEGG pathways. Ultimately, we used the Pearson correlation analysis to explore the relationship among immune genes, immune cells, and KEGG pathways. Additionally, key genes and regulatory mechanisms were validated by single-cell RNA sequencing and ChIP sequencing data.

Results

A total of 204 immune genes and 12 TFs, were identified. The prediction model achieved a satisfactory effectiveness in distant metastasis with the Area Under Curve (AUC) of 0.808. LTB was significantly correlated with PAX5 (P < 0.001, R = 0.829) and hematopoietic cell lineage pathway (P < 0.001, R = 0.375). The transcriptional regulatory pattern between PAX5 and LTB was validated by ChIP sequencing data.

Conclusions

We hypothesized that down-regulated LTB (immune gene) modulated by PAX5 (TF) in STSs may have the capability of inducing cancer cell metastasis in patients with STS.
Ninjurin 2 rs118050317 gene polymorphism and endometrial cancer risk
Authors: Cheng Yimin , Yang Liting , Shi Guangyao , Chen Peng , Li Liang , Fang Hangrong , Chen Chao
Published: January 2021

Background

Endometrial cancer is one of the most common female reproductive system tumors. Ninjurin2 (NINJ2) is a new adhesion factor. As a vascular susceptibility gene, it is highly expressed in other cancers and promotes the growth of cancer cells. We conducted an association analysis between NINJ2 gene polymorphism and endometrial cancer risk.

Methods

Five SNPs rs118050317, rs75750647, rs7307242, rs10849390 and rs11610368 of NINJ2 gene were genotyped in 351 endometrial cancer patients and 344 healthy controls. The clinical index difference between cases and controls were tested by one-way analysis of variance. The allele and genotype frequency of cases and controls were been compared by Chi square test. The odds ratios (OR) with 95% confidence interval (95% CI) were examined by logistic regression analysis.

Results

The SNP rs118050317 mutant allele C and homozygote CC genotype were significant increased the endometrial cancer risk (OR 1.46, 95% CI 1.04–2.06, p = 0.028; OR 8.43, 95% CI 1.05–67.89, p = 0.045). In the clinical index analysis, there were significant higher quantities of CEA, CA125 and AFP in cases serum than controls.

Conclusion

The NINJ2 gene polymorphism loci rs118050317 mutant allele C was associated with an increased risk of endometrial cancer. CEA, CA125 and AFP quantities were significant higher in endometrial cancer patients.
Mechanisms of vasculogenic mimicry in hypoxic tumor microenvironments
Authors: Wei Xiaoxu , Chen Yunhua , Jiang Xianjie , Peng Miao , Liu Yiduo , Mo Yongzhen , Ren Daixi , Hua Yuze , Yu Boyao , Zhou Yujuan , Liao Qianjin , Wang Hui , Xiang Bo , Zhou Ming , Li Xiaoling , Li Guiyuan , Li Yong , Xiong Wei , Zeng Zhaoyang
Published: January 2021

Background

Vasculogenic mimicry (VM) is a recently discovered angiogenetic process found in many malignant tumors, and is different from the traditional angiogenetic process involving vascular endothelium. It involves the formation of microvascular channels composed of tumor cells; therefore, VM is considered a new model for the formation of new blood vessels in aggressive tumors, and can provide blood supply for tumor growth. Many studies have pointed out that in recent years, some clinical treatments against angiogenesis have not been satisfactory possibly due to the activation of VM. Although the mechanisms underlying VM have not been fully elucidated, increasing research on the soil “microenvironment” for tumor growth suggests that the initial hypoxic environment in solid tumors is inseparable from VM.

Main body

In this review, we describe that the stemness and differentiation potential of cancer stem cells are enhanced under hypoxic microenvironments, through hypoxia-induced epithelial-endothelial transition (EET) and extracellular matrix (ECM) remodeling to form the specific mechanism of vasculogenic mimicry; we also summarized some of the current drugs targeting VM through these processes, suggesting a new reference for the clinical treatment of tumor angiogenesis.

Conclusion

Overall, the use of VM inhibitors in combination with conventional anti-angiogenesis treatments is a promising strategy for improving the effectiveness of targeted angiogenesis treatments; further, considering the importance of hypoxia in tumor invasion and metastasis, drugs targeting the hypoxia signaling pathway seem to achieve good results.
Taking the Myc out of cancer: toward therapeutic strategies to directly inhibit c-Myc
Authors: Madden Sarah K. , de Araujo Aline Dantas , Gerhardt Mara , Fairlie David P. , Mason Jody M.
Published: January 2021

c-Myc is a transcription factor that is constitutively and aberrantly expressed in over 70% of human cancers. Its direct inhibition has been shown to trigger rapid tumor regression in mice with only mild and fully reversible side effects, suggesting this to be a viable therapeutic strategy. Here we reassess the challenges of directly targeting c-Myc, evaluate lessons learned from current inhibitors, and explore how future strategies such as miniaturisation of Omomyc and targeting E-box binding could facilitate translation of c-Myc inhibitors into the clinic.
LncRNA CRNDE attenuates chemoresistance in gastric cancer via SRSF6-regulated alternative splicing of PICALM
Authors: Zhang Feifei , Wang Hui , Yu Jiang , Yao Xueqing , Yang Shibin , Li Weidong , Xu Lijun , Zhao Liang
Published: January 2021

De novo and acquired resistance, which are mainly mediated by genetic alterations, are barriers to effective routine chemotherapy. However, the mechanisms underlying gastric cancer (GC) resistance to chemotherapy are still unclear. We showed that the long noncoding RNA CRNDE was related to the chemosensitivity of GC in clinical samples and a PDX model. CRNDE was decreased and inhibited autophagy flux in chemoresistant GC cells. CRNDE directly bound to splicing protein SRSF6 to reduce its protein stability and thus regulate alternative splicing (AS) events. We determined that SRSF6 regulated the PICALM exon 14 skip splice variant and triggered a significant S-to-L isoform switch, which contributed to the expression of the long isoform of PICALM (encoding PICALML). Collectively, our findings reveal the key role of CRNDE in autophagy regulation, highlighting the significance of CRNDE as a potential prognostic marker and therapeutic target against chemoresistance in GC.
Expression profiles, biological functions and clinical significance of circRNAs in bladder cancer
Authors: Yang Xiaoqi , Ye Tao , Liu Haoran , Lv Peng , Duan Chen , Wu Xiaoliang , Jiang Kehua , Lu Hongyan , Xia Ding , Peng Ejun , Chen Zhiqiang , Tang Kun , Ye Zhangqun
Published: January 2021

Circular RNAs (circRNAs), which are single-stranded closed-loop RNA molecules lacking terminal 5′ caps and 3′ poly(A) tails, are attracting increasing scientific attention for their crucial regulatory roles in the occurrence and development of various diseases. With the rapid development of high-throughput sequencing technologies, increasing numbers of differentially expressed circRNAs have been identified in bladder cancer (BCa) via exploration of the expression profiles of BCa and normal tissues and cell lines. CircRNAs are critically involved in BCa biological behaviours, including cell proliferation, tumour growth suppression, cell cycle arrest, apoptosis, invasion, migration, metastasis, angiogenesis, and cisplatin chemoresistance. Most of the studied circRNAs in BCa regulate cancer biological behaviours via miRNA sponging regulatory mechanisms. CircRNAs have been reported to be significantly associated with many clinicopathologic characteristics of BCa, including tumour size, grade, differentiation, and stage; lymph node metastasis; tumour numbers; distant metastasis; invasion; and recurrence. Moreover, circRNA expression levels can be used to predict BCa patients’ survival parameters, such as overall survival (OS), disease-free survival (DFS), and progression-free survival (PFS). The abundance, conservation, stability, specificity and detectability of circRNAs render them potential diagnostic and prognostic biomarkers for BCa. Additionally, circRNAs play crucial regulatory roles upstream of various signalling pathways related to BCa carcinogenesis and progression, reflecting their potential as therapeutic targets for BCa. Herein, we briefly summarize the expression profiles, biological functions and mechanisms of circRNAs and the potential clinical applications of these molecules for BCa diagnosis, prognosis, and targeted therapy.
Primary metastatic prostate cancer between prognosis or adequate/proper medical therapy
Authors: Mustafa Mahmoud , Rass Honood Abu , Yahya Mothafr , Hamdan Khaleel , Eiss Yazan
Published: January 2021

Purpose

To define the efficacy of standard androgen deprivation therapy (ADT) in the treatment of metastatic prostate cancer (PCa).

Materials and methods

Fifty patients with mean age of 70.48 ± 9.95 years old (range 52–87) who had metastatic PCa and received ADT between 2014 and 2019 were retrospectively evaluated. Median values of pre-therapeutic PSA and Gleason scores were 50 ng/ml (range 8–1201) and 8 (range 6–9), respectively. All patients received luteinizing hormone-releasing hormone (LHRH) analogue and anti-androgen. The patients were evaluated in terms of age, pre-therapeutic PSA serum levels, Gleason scores, presence of metastasis, number and percentage of cores involved, nadir PSA, time to nadir PSA, duration of ADT, and PSA at last follow-up. Multivariate analysis was used to define the factors which have impact on ADT response. The mean follow-up period was 13.87 ± 7.78 months, (range 2–32).

Results

All patients showed reduction in serum PSA level after initiation of ADT, and the median value of nadir PSA was 1.12 ng/ml (range 0.02–50). The mean value of time to nadir PSA was 3.85 ± 1.57 months (range 2–7). The median value of PSA at last follow-up was 2 ng/ml (range 0.02–50.21). Multi-variant analysis showed that nadir PSA have a significant correlation with pre-therapeutic PSA, PSA at last follow-up, age, and Gleason scores (p < .05).

Conclusion

Standard ADT is a feasible option in the treatment of metastatic PCa. Gleason scores, age, pre-therapeutic PSA, and PSA at last follow-up have significant impact on outcomes of ADT. Further studies of high number of patients with long-term follow-up including other chemo-hormonal therapy and androgen receptor blockers should be carried out to confirm and improve efficacy of ADT.