Cultivating Ex Vivo Patient-Derived Glioma Organoids Using a Tissue Chopper

Glioblastoma, IDH-wild type, CNS WHO grade 4 (GBM) is a primary brain tumor associated with poor patient survival despite aggressive treatment. Developing realistic ex vivo models remain challenging. Patient-derived 3-dimensional organoid (PDO) models offer innovative platforms that capture the phenotypic and molecular heterogeneity of GBM, while preserving key characteristics of the original tumors. However, manual dissection for PDO generation is time-consuming, expensive and can result in a number of irregular and unevenly sized PDOs. This study presents an innovative method for PDO production using an automated tissue chopper. Tumor samples from four GBM and one astrocytoma, IDH-mutant, CNS WHO grade 2 patients were processed manually as well as using the tissue chopper. In the manual approach, the tumor material was dissected using scalpels under microscopic control, while the tissue chopper was employed at three different angles. Following culture on an orbital shaker at 37 °C, morphological changes were evaluated using bright field microscopy, while proliferation (Ki67) and apoptosis (CC3) were assessed by immunofluorescence after 6 weeks. The tissue chopper method reduced almost 70% of the manufacturing time and resulted in a significantly higher PDOs mean count compared to the manually processed tissue from the second week onwards (week 2: 801 vs. 601, P = 0.018; week 3: 1105 vs. 771, P = 0.032; and week 4:1195 vs. 784, P < 0.01). Quality assessment revealed similar rates of tumor-cell apoptosis and proliferation for both manufacturing methods. Therefore, the automated tissue chopper method offers a more efficient approach in terms of time and PDO yield. This method holds promise for drug- or immunotherapy-screening of GBM patients.

Patterns of War-Related Traumatic Brain Injuries and Predictors of Mortality Among Civilians During the Syrian Armed Conflict

BACKGROUND AND OBJECTIVES

High-velocity weapons were used against unshielded civilians during the Syrian armed conflict, leading to a variety of combat-related traumatic brain injuries with high fatality and morbidity. Because of the lack of data in the literature about the management and outcomes of similar injuries, we aimed in this study to characterize shrapnel and gunshot injuries in this vulnerable group and to describe the association between the mechanisms, site, and type of injury and the outcomes.

METHODS

This was a single-center retrospective cohort study on new traumatic brain injuries in civilians who presented alive to the neurosurgery department at Damascus Hospital between 2014 and 2017. The analyzed data included the mechanism of injury and its type and site based on computed tomography scans. We also studied the neurological status at admission, the major interventions applied, and outcomes including mortality and neurological deficits at discharge.

RESULTS

Shrapnel and gunshot injuries more likely affected the frontal and parietal lobes, respectively. While shrapnel led to injuries in multiple body parts, gunshots led to localized but more severe injuries. Despite that, mortality rates were comparable between the two mechanisms. Injuries to the right parietal and right frontal lobes were more fatal with odds ratios of 2.61 (1.23-5.52) and 2.12 (1.00-4.50), respectively. Moreover, mortality was also linked to the radiological findings of loss of brain material with an odds ratio of 3.73 (1.42-9.81), intracerebral hemorrhage with an odds ratio of 3.60 (1.67-7.80), intraventricular hemorrhage with an odds ratio of 5.49 (1.68-17.95), and subdural hemorrhage with an odds ratio of 6.35 (2.29-17.66).

CONCLUSION

The unfortunate nature of the Syrian armed conflict, wherein civilians were targeted during their daily routine, seems to manifest a heightened propensity to affect the parietal lobes, potentially resulting in higher morbidity. Although shrapnel and gunshot injuries showed no significant difference in mortality rates, injuries involving loss of brain tissue and intracranial hemorrhage emerged as independent predictors of mortality.

The delay of breast cancer diagnosis and management during the Syrian war

BACKGROUND

Early detection of breast cancer (BC) is crucial for better prognosis especially in low-income countries, where advanced cancer stages are common. The Syrian war severely affected the healthcare system restraining the proper timely management of BC cases. We aimed to investigate the prevalence of patient- and system-related delays in BC diagnosis and management in Syria in addition to their predisposing characteristics and impact on the staging.

METHODS

This is a cross-sectional retrospective cohort study on patients followed by the BC unit at Al-Bairouni main cancer center in Syria. The data were collected through personal interviews and retrospective revision of patients' records.

RESULTS

A total number of 519 patients were recruited; A quarter of them (n = 126) reported more than three months intervals between symptoms recognition and presentation to a physician. Additionally, 72 (13.9 %) patients received a confirmed diagnosis more than three months after presentation, and 12 (2.3 %) started treatment at least three months after the diagnosis. Patients who suffered from war-related inaccessibility to healthcare were 2.55 [1.58-4.11] times more likely to report significant delays. Additionally, the most common self-reported reasons for patient delay were the lack of awareness, which was more evident for less common symptoms like the change in breasts size, and shyness. Patients who reported significant delays were more likely to receive an advanced-stage diagnosis.

CONCLUSION

War-related inaccessibility to healthcare rendered a significant group of BC patient susceptible to evident delay. This combined with significant system delays because of the overwhelmed hospitals, high costs, and insufficient personnel, equipment, medications, and training. However, personal factors, which might not be directly related to the war, like the inadequate awareness of rare symptoms and shyness still necessitate urgent interventions on the public knowledge and performed screening practices. These delays associated with receiving advanced-stage diagnoses and minimizing them can return better prognoses.

Medical Research Conduct and Publication during Higher Education in Syria: Attitudes, Barriers, Practices, and Possible Solutions

Background:  The huge workload on doctors especially residents, who are the main health care providers in public hospitals, in addition to the vanishing incomes and lack of personal safety during the decade-long Syrian crisis, led to further hurdles in the focus on research. Postgraduate students in the medical and paramedical fields must conduct original research projects as part of their graduation requirements. However, this does not reflect on research publications coming from Syria.

Methods:  This is a nation-wide cross-sectional study targeting medical, dental, and pharmacy postgraduate students who are at the phase of planning for their required projects. The questionnaire aimed to capture their attitudes toward research, perceived barriers, and previous research experiences in order to suggest evidence-based recommendations.

Results:  The sample consisted of 429 residents representing about 22% of the target population. Nearly all the participants had positive opinion toward the important role of medical research and the significance of their participation. Agreement was also clear regarding perceived barriers, including the lack of adequate training and research facility. Seventy-one percent of the participants were not involved in any research before the time of their master theses, less than 13% of them had submitted an article for publication, and less than 5% had submitted more than one paper. Despite that, high-quality internet connectivity and rich English writing skills were associated with further research experiences. Additionally, mentors' support and self-paced learning of research skills had significant positive impact on students' research contributions with odds ratios of 2.04 [[95% Confidence Interval]: 1.02–4.06] and 2.68 [1.48–4.84], respectively.

Conclusion:  Lack of training and mentorship, in addition to several common barriers to medical research, hampered residents' capacity of conducting and publishing research despite their positive attitudes toward it. Nevertheless, the variance within our sample exposed a promising window for implementing low-cost institutional and individual solutions such as peer-run self-paced training opportunities and long-distance mentoring.

Factors associated with the intention of Syrian adult population to accept COVID19 vaccination: a cross-sectional study

Background and objectives

With global efforts to develop and deliver a COVID-19 vaccine rapidly, vaccine hesitancy stands as a barrier to these efforts. We aimed to estimate the proportion of Syrian adult population intending to be vaccinated against COVID-19 and, principally, to assess the demographic and attitudinal factors associated with it in order to approach suitable solutions.

Methods

An anonymous online questionnaire was conducted between 23rd December 2020 and 5th January 2021 in various provinces in Syria. A total of 3402 adults were sampled to reflect the population demographic factors. Attitudinal factors included Covid-19 fears, risks, and beliefs on the origin. Vaccination hesitancy and knowledge were also measured. The intention to get vaccinated against COVID-19 was the primary endpoint.

Results

According to their statements, 1222 participants (35.92%) will consent to get vaccinated against COVID-19. Our findings indicate that male gender, younger age, rural residence, not having children, smoking, fear about COVID-19, individual perceived severity, believing in the natural origin of the coronavirus, and high vaccination knowledge were positive predictors of embracing COVID-19 vaccine when it is available.

Conclusion

COVID-19 vaccine acceptance rate is considerably poor across Syrian population compared to populations in developed countries. Vaccine hesitancy is closely bound to the fear of side effects and doubts about vaccine efficacy. Factors such as conspiracy beliefs and myths about the vaccine lower vaccine uptake. Thus, interventional educational campaigns are increasingly required to overcome misinformation and avert low vaccination acceptance rates.

Workplace violence toward resident doctors in public hospitals of Syria: prevalence, psychological impact, and prevention strategies: a cross-sectional study

INTRODUCTION

Workplace violence (WPV) against healthcare workers is a common and daily problem in hospitals worldwide. Studies in different countries indicated that exposure to WPV potentially impacts the psychological status of healthcare workers. However, there is a paucity of studies approaching this issue in the Syrian healthcare system.

OBJECTIVES

This study had three objectives: (1) to estimate the prevalence of violence against resident doctors in Syria, (2) to examine the association between WPV and resident doctors' psychological stress, sleep quality, depression, and general health and (3) to suggest approaches to tackle this problem from the resident doctors' perspectives.

METHODS

A cross-sectional study was conducted in 8 out of 14 provinces, and covered 17 out of 56 accessible functioning hospitals in Syria. Data were collected using anonymous, self-administered questionnaires during February 2020. A total of 1226 resident doctors volunteered to participate in the study. Finally, 1127 valid questionnaires were used in the final data analysis. The overall response rate was 91.92%.

RESULTS

A total of 955 participants (84.74%) reported exposure to WPV in the 12 months prior to the study. In specific, 84.74% exposed to verbal violence and 19.08% to physical violence. Patients' associates were the predominant aggressors in both verbal and physical violence (n = 856; 89.63%, n = 178; 82.79%, respectively). Most resident doctors (87.31%) suggested enacting more legislation to protect doctors as the best solution to reduce WPV. Verbal and physical violence showed a significant positive correlation with each item of depression and stress, and a significant negative correlation with both subjective sleep quality and subjective health.

CONCLUSION

Workplace violence against resident doctors in Syria is highly common. Therefore, policymakers, hospital managers, and supervisors should work collaboratively in order to minimize WPV and ensure resident doctors' safety and psychophysical stability.