Prognostic value of the micronucleus assay for clinical endpoints in neoadjuvant radiochemotherapy for rectal cancer.

BACKGROUND: The question whether lymphocyte radiosensitivity is representative of patients' response to radiotherapy (RT) remains unsolved. We analyzed lymphocyte cytogenetic damage in patients who were homogeneously treated with preoperative radiochemotherapy (RCT) for rectal cancer within clinical trials. We tested for interindividual variation and consistent radiosensitivity after in-vivo and in-vitro irradiation, analyzed the effect of patients' and RCT characteristics on cytogenetic damage, and tested for correlations with patients' outcome in terms of tumor response, survival and treatment-related toxicity. METHODS: The cytokinesis-block micronucleus cytome (CBMNcyt) assay was performed on the peripheral blood lymphocytes (PBLCs) of 134 patients obtained before, during, at the end of RCT, and during the 2-year follow-up. A subset of PBLCs obtained before RCT was irradiated in-vitro with 3 Gy. RCT included 50.4 Gy of pelvic RT with 5-fluorouracil (5-FU) alone (n = 78) or 5-FU plus oxaliplatin (n = 56). The analyzed variables included patients' age, gender, RT characteristics (planning target volume size [PTV size], RT technique), and chemotherapy characteristics (5-FU plasma levels, addition of oxaliplatin). Outcome was analyzed as tumor regression, patient survival, and acute and late toxicity. RESULTS: Cytogenetic damage increased significantly with the radiation dose and varied substantially between individuals. Women were more sensitive than men; no significant age-dependent differences were observed. There was a significant correlation between the cytogenetic damage after in-vitro irradiation and in-vivo RCT. We found a significant effect of the PTV size on the yields of cytogenetic damage after RCT, while the RT technique had no effect. Neither the addition of oxaliplatin nor the 5-FU levels influenced cytogenetic damage. We found no correlation between patient outcome and the cytogenetic damage. CONCLUSIONS: We found consistent cytogenetic damage in lymphocytes after in-vivo RCT and in-vitro irradiation. Gender was confirmed as a well-known, and the PTV size was identified as a less well-known influencing variable on lymphocyte cytogenetic damage after partial-body irradiation. A consistent level of cytogenetic damage after in-vivo and in-vitro irradiation may indicate the importance of genetic factors for individual radiosensitivity. However, we found no evidence that in-vivo or in-vitro irradiation-induced cytogenetic damage is an adequate biomarker for the response to RCT in rectal cancer patients.

German research perspectives on suicidality and the rationale for future multinational suicide prevention projects among military service personnel.

As a result of scientific publications indicating that the last two decades have seen an increase in the number of suicides in the US Armed Forces, the topic of suicide in the military of other countries, such as Germany, has also received a lot of attention in media and science alike. Risk factors for suicidal behaviour and suicide were identified in several research projects in the US, Canada, the UK, and Germany. Until now, German suicide research among military service personnel has mainly focused on epidemiological aspects of suicides and suicidality, individual risk factors, sub-groups at risk for suicide, suicides and deployment abroad, and associations of suicide and suicide attempts with acute mental disorders. The key findings are summarized in this review article. Efforts should be made to develop and evaluate risk group-focused and occupation-focused prevention and intervention programs. Future multinational studies should address potential differences between risk groups for fatal and non-fatal suicidal behaviour.

Mistrust Among Rescue Workers After the Terrorist Attack in Berlin in 2016 - Gender-Specific Health Inequality.

OBJECTIVES: In this single-case-by-group comparison, we examine whether previously found cisgender differences in paranoid ideation after a terror attack are also seen in a transgender male emergency worker. METHODS: Sixty emergency personnel who were exposed to the 2016 terror attack in Berlin were evaluated 3 to 4 and 21-25 mo after the attack. RESULTS: On paranoid ideation, the transgender male showed higher scores than cisgender males (+2 standard deviations [SD]) and the overall group (+1 SD). CONCLUSIONS: This underpins the previously identified gender effects. It would be useful to consider specified pre- and postdeployment modules that take cis- and transgender differences into account.

The impact of the pandemic on the perception of stress and danger, and the adjustment of psychiatric and general medical staff of German military hospitals.

Introduction: The COVID-19 pandemic changed not only the working conditions but also the private conditions we live in. Health care professionals especially were confronted with multiple stressors, e.g., the risk of infection, lack of staff, and high workloads. Methods: To estimate some of the pandemic-related impacts this anonymous personnel survey was conducted in two German military hospitals (Hamburg and Berlin). This study presents a comparative analysis of the hospital staff in general vs. the psychiatric personnel (N = 685) at two measurement time points (MTPs) in April 2021 (n = 399) and December 2021 (n = 286). The survey contains the German version of the Covid Stress Scale (CSS) to assess the perceived level of pandemic-related stress, the Patient Health Questionnaire (German Version: PHQ-D) to screen for three major mental disorders, and the adjustment disorder-New Module (ADNM) to estimate the problems of adaptation to change. Results: The results showed a process of adaptation over the two MTPs with significant stress reduction at MTP2 in the general staff. The psychiatric staff did not report significantly higher pandemic-related symptoms. Quite the contrary, not only did the CSS show significantly lower xenophobia, traumatic stress, and compulsive checking, but the PHQ also showed lower stress symptoms and somatic symptoms at both MTPs. Also, the ADNM scores delivered evidence for a more effective adaptation process in psychiatric personnel (e.g., depressive mood, avoidance, anxiety). Discussion: The presented results must be interpreted while taking the unique situations of German military clinics into account. The supply of protective material was sufficient and there was no dramatic shortage of psychiatric staff during the pandemic. The inpatients were quite often (40%) elective treatments for trauma-related disorders, which could be discontinued in the case of a COVID-19 infection. The results of this study showed good adaptative skills among the psychiatric staff in military hospitals, which could be interpreted as a sign of good resilience. This might have led to lower stress-related symptoms during the COVID-19 pandemic.

Suicidal behavior in German military service members: An analysis of attempted- and completed suicides between 2010 and 2016.

Studies identified service members of the United States (US) Armed Forces as a high-risk group for suicide. A significant increase in the suicide rate in the US Armed Forces was found in recent years. To date, there is no military suicide statistic available for the German Armed Forces. This study examined attempted and completed suicides in active service members of the German Armed Forces between 2010 and 2016 retrospectively, on the basis of archived personal and medical records in the central archives of the Medical Service of German Armed Forces. The primary goal was to establish a suicide-statistic for the German Armed Forces and to calculate and compare the suicides rates with the German population. Secondary every case's data was analysed the groups of attempted and completed suicides were compared. 262 attempted suicides and 148 completed suicides were included in this study (N = 410). The suicide rates of the German Armed Forces peaked over the years 2014-2015 with a suicide rate of 15-16/100.000 active military service members and exceeded the civilian suicide rate in Germany of around 12/100.000 people during those years, although no general trend could be determined. These service members were mostly young men (attempted suicide 81.7%, completed suicide 99.3%), at the age of 17 - <35 years old (87% attempted suicide, 68,3% completed suicide), and were employed less than 6 years in the German Armed Forces (attempted suicide 72.9%, completed suicide 46.3%). Service members with attempted suicides belonged mostly to the military North Atlantic Treaty Organization (NATO)-rank-group for other ranks (lowermost military professionals) OR-1 -OR-4 (48.1%) or to the rank-group OR-6 -OR-9 in the group of completed suicides (34.5%). Only in about one third of cases a psychiatric diagnosis could be found in the records. Most frequent diagnoses were neurotic, stress-related and somatoform disorders (International Classification of Diseases Tenth Revision^ICD-10: F4) in 46.8%, and affective disorders (ICD-10: F3) in 43.3% of all cases. In the majority of cases there were signs for potential stressors in the private sector (attempted suicide 90.6%, completed suicide 82.6%). No typical risk factors which would enable a specific prevention could be identified in this analysis. Therefore, should preventive strategies be aiming at a multi-level intervention program.

Suicides between 2010 and 2014 in the German Armed Forces-Comparison of Suicide Registry Data and a German Armed Forces Survey.

BACKGROUND: The last 10 years have seen an increase in the number of suicides in the US Armed Forces. Accordingly, the topic of suicides in the German military has received a lot of attention in media and science alike. METHODS: This study retrospectively examined all suicides (N = 107) committed by active, nonretired German military personnel from 2010 to the end of 2014, analyzing archived medical records. In a second step, these data were compared to a representative German Armed Forces survey conducted in 2012 (N = 1,549). RESULTS: The following risk groups for suicide were identified: male (OR = 9.6), single (OR = 7.8), aged over 45 years (OR = 4.0), short period of service (<2 years; OR = 2.7), and low level of education (OR = 2.2). Surprisingly, military personnel with little experience in deployments abroad (<2 missions) showed double the risk (OR = 2.0) compared to those who had been deployed more than once. DISCUSSION: Multiple robustness checks show that being single, aged over 45 years, and having obtained a low level of education exhibit the most robust effects on suicide risk. CONCLUSION: Efforts should be made to develop and evaluate risk group-focused prevention programs. We conclude, that further studies should be initiated to show differences of risk groups between lethal and nonlethal suicidal behavior.