Levels of depression, anxiety and subjective happiness among health sciences students in Croatia: a multi-centric cross-sectional study.

BACKGROUND: Previous studies have shown that symptoms of depression and anxiety were highly prevalent among health sciences students. This may lead to other professional and personal difficulties and a decrease in individuals' well-being. This study aimed to analyze levels of depression, anxiety and subjective happiness among health sciences students in Croatia. METHODS: We conducted a cross-sectional study in 10 higher education institutions in Croatia during March 2023. Eligible participants were health sciences students. Participants filled out an online survey consisting of sociodemographic questions and validated scales for determining the levels of depression (9-question Patient Health Questionnaire, PHQ-9), anxiety (General Anxiety Disorder 7-item scale, GAD-7), and happiness (Subjective Happiness Scale, SHS). RESULTS: Of 7460 invited students, 2137 students participated in the study (29% response rate). There were 41.4% of students that exhibited at least mild depressive symptoms, with 8% of students exhibiting moderately severe symptoms and 1.8% severe depressive symptoms. Mild anxiety was found in 36.8%, moderate anxiety in 23.9% and severe anxiety in 15.8% of students. The median SHS score was 19 (15.25-22). Women students had significantly higher levels of depression (p < 0.001) and anxiety (p < 0.001) than their men peers. Students in earlier study years showed higher levels of depression, anxiety and lower levels of subjective happiness compared to those in later study years. Students with lower self-assessed financial status had higher levels of depression (p < 0.001) and anxiety (p < 0.001). Students that failed an academic year had higher levels of depression (p < 0.001), but lower levels of anxiety (p = 0.005). CONCLUSION: In this study, we have shown that health sciences students exhibit high levels of depression and anxiety, at rates exceeding those in the general population reported in other studies. Our results may help educational institutions to put greater effort into the battle against mental health stigma, foster acceptance of mental health issues and encourage students to seek help when needed. Adequate mental health services are needed at universities to promote timely diagnosis and treatment of mental health problems.

Web-Based Educational Intervention to Improve Knowledge of Systematic Reviews Among Health Science Professionals: Randomized Controlled Trial.

BACKGROUND: Lack of knowledge of systematic reviews (SRs) could prevent individual health care professionals from using SRs as a source of information in their clinical practice or discourage them from participating in such research. OBJECTIVE: In this randomized controlled trial, we evaluated the effect of a short web-based educational intervention on short-term knowledge of SRs. METHODS: Eligible participants were 871 Master's students of university health sciences studies in Croatia; 589 (67.6%) students who agreed to participate in the trial were randomized using a computer program into 2 groups. Intervention group A (294/589, 49.9%) received a short web-based educational intervention about SR methodology, and intervention group B (295/589, 50.1%) was presented with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) checklist. The participants' knowledge of SRs was assessed before and after the intervention. The participants could not be blinded because of the nature of the intervention. The primary outcome was the difference in the percentage of correct answers about SR methodology per participant between the groups after the intervention, expressed as relative risk and 95% CI. RESULTS: Results from 162 and 165 participants in the educational intervention and PRISMA checklist groups, respectively, were available for analysis. Most of them (educational intervention group: 130/162, 80.2%; PRISMA checklist group: 131/165, 79.4%) were employed as health care professionals in addition to being health sciences students. After the intervention, the educational intervention group had 23% (relative risk percentage) more correct answers in the postintervention questionnaire than the PRISMA checklist group (relative risk=1.23, 95% CI 1.17-1.29). CONCLUSIONS: A short web-based educational intervention about SRs is an effective tool for short-term improvement of knowledge of SRs among health care studies students, most of whom were also employed as health care professionals. Further studies are needed to explore the long-term effects of the tested education. TRIAL REGISTRATION: OSF Registries 10.17605/OSF.IO/RYMVC; https://osf.io/rymvc.

Croatian genetic heritage: an updated Y-chromosome story.

AIM: To analyze an additional set of ˝Y-chromosome genetic markers to acquire a more detailed insight into the diversity of the Croatian population. METHODS: A total of 518 Yfiler Plus profiles were genotyped. Allele frequencies, haplotype frequencies, and haplotype diversity were calculated by using the STRAF software v. 2.0.4. Genetic distances were quantified by Rst with AMOVA online tool from the YHRD. The evolutionary history was inferred with the neighbor-joining method of phylogenetic tree construction in the MEGAX software. Whit Athey's Haplogroup Predictor v. 5 was used for additional comparison with regional and other European populations. RESULTS: A total of 507 haplotypes were used for genetic STR analysis. An interpopulation study on 17 Y-STR markers showed the lowest genetic diversity between the Croatian and Bosnian-Herzegovinian populations and the highest between the Croatian and Irish populations. Additional interpopulation comparison with the original 27 Y-STR markers (for the population with available data) was also performed. A total of 518 haplotypes were used in the determination of haplogroup diversity. Haplogroup I with its sublineage I2a expressed the highest prevalence. The second most prevalent haplogroup was R, with its major sublineage R1a, except for the subpopulation of Hvar, where E1b1b was the second most prevalent haplogroup. Rare haplogroups also confirmed in this study were L, T, and Q. G1 was detected for the first time in the Croatian population. CONCLUSION: We obtained a new insight into the differences between examined subpopulations of Croatia and their possible (dis)similarities with neighboring and distant populations.

THE IMPACT OF SHIFT WORK ON THE METABOLISM AND CIRCADIAN RHYTHM IN NURSES AND MEDICAL TECHNICIANS.

Providing in-patient nursing care inevitably involves shift work and shift patterns have been identified as an important factor in determining well-being and satisfaction among nurses. Shifts of 12 h or longer have become increasingly common for nurses in hospitals in some European countries. Longer shifts offer a potential to benefit from a compressed working week, with fewer work days and more days off-work, lower commuting costs, and increased flexibility. Most people find shift work less desirable compared to standard working hours. A cross-sectional cohort study was conducted at the Mostar University Hospital in 2019. A total of 157 subjects participated in the study, 22 (14%) of which were male (medical technicians) and 135 (86%) female (nurses). The mean age of study subjects was 33.3 years (min=20, max=54, SD=8.033). Results of this study suggested that nurses working irregular rotating shifts, with more family members to look after and more than 18 years of professional experience were affected by sleep disturbances between shifts. The study showed that shift work nurses had significantly higher levels of cortisol and prolactin compared with first-shift nurses/medical technicians. The results of this study are expected to stimulate further studies of sleep disturbances among shift nurses.

The Effect of Shift Work on the Overall Health Status of Hospital-Employed Nursing Staff in Bosnia and Herzegovina: A Cross-Sectional Study.

BACKGROUND: Nursing is a profession frequently organized around shift work in order to guarantee the continuity of care throughout the 24 hours. However, working in shifts is coupled with the desynchronization of circadian rhythms and may result in adverse effects on nurses' health. Our previous work has demonstrated the presence of increased stress levels, reduced coping abilities and diminished life enjoyment in shift work nurses in comparison to those working only in accordance with the daily schedule. Here we aimed to appraise the effects of shift work on their overall health status. SUBJECTS AND METHODS: We used a comparative cross-sectional approach on a sample of 157 hospital nursing professionals at the University Clinical Hospital Mostar. Study subjects were divided into two groups: a total of 51% study subjects were included in a specific type of shift work (i.e., 12-hour day shift / 24 hours off / 12-hour night shift / 48 hours off), while the remaining 49% adhered to the conventional 7-hour daily schedule. The instrument used was a Standard Shiftwork Index (SSI), together with a comprehensive appraisal of participants' socio-demographic characteristics. Descriptive and inferential statistical methods were applied, and statistical significance was set at p≤0.05 (two-sided). RESULTS: The results have shown that nurses in shift work were significantly more burdened with gastrointestinal disturbances (p<0.001); more specifically, there was a higher frequency of appetite loss (p=0.003), heartburn (p=0.03), nausea (p<0.01) and weight gain (p=0.05) when compared to nursing professionals in the day shift. Conversely, there were no statistically significant differences in cardiovascular health between these two groups. In addition, nurses in shift work more frequently presented with headaches (p=0.001) and varicose veins of lower extremities (p=0.037) in comparison to nurses working only in accordance with the daily schedule. CONCLUSIONS: Shift work can adversely influence psychophysical homeostasis, resulting not only in substandard performance of nursing staff, but also potentially hazardous effects on their overall health status. More specifically, we recognized shift work as a substantial risk factor for gastrointestinal and metabolic disorders in nurses; likewise, the increased prevalence of headaches may consequently have a detrimental effect on social and family relationships. All of this should be tackled in a holistic and organized way, together with any additional psychological/sleep issues.

Human Papillomavirus (HPV) Prevalence, Temporal Dynamics and Association with Abnormal Cervical Cytology Findings in Women from Croatia: Is there a Compounding Effect of Low-Risk/High-Risk HPV Co-Infection?

BACKGROUND: Human papillomavirus (HPV) is a major risk factor for cervical dysplasia and invasive cervical cancer; therefore, regular screening by cervical smear cytology or HPV testing is recommended. We aimed to determine the overall and risk group-specific HPV prevalence, age distribution, and temporal trends and to appraise the correlation of HPV positivity with abnormal cervical cytological findings. METHODS: This retrospective, single-center study involved a total of 751 women (aged 18 - 67) concurrently subjected to HPV DNA testing and cervical cytology evaluation over a 10-year period in Zagreb, Croatia. Digene HC2 HPV DNA test (Qiagen Corporation, USA) was employed in screening specimens for both low-risk and high-risk HPV risk groups. The cytology was reported using the Bethesda system and in accordance with uniform classification of uterine cervix cytological findings in Croatia "Zagreb 2002". Statistical significance was set at p < 0.05. RESULTS: The overall HPV prevalence in our study population was 48.6%, and the 18 - 30 age group presented with the highest infection burden (p = 0.046). A decrease in low-risk and high-risk mono-positivity has been observed over the 10-year period; conversely, there was a significant increase in low-risk/high-risk co-positivity (p = 0.007). Low-risk/high-risk HPV co-infection resulted in a compounding effect which increased the occurrence of abnormal cells, HPV-associated changes and low grade squamous intraepithelial lesions (LSIL/cervical intraepithelial neoplasia grade I) in cervical cytology when compared to mono-infection with either low-risk or high-risk HPV. On the other hand, such effect has not been demonstrated for high grade squamous intraepithelial lesions (HSIL/ cervical intraepithelial neoplasia grades II and III). CONCLUSIONS: The overall HPV prevalence in female outpatients was high, underscored with rising co-positivity rates. Such co-infection with both low-risk and high-risk HPV (predominantly seen in women younger than 30) can exhibit a compounding effect in the occurrence of cytological abnormalities and low grade squamous intra-epithelial lesions (LSIL), which has to be considered in future diagnostic and screening algorithms.

Attitudes and concerns of undergraduate university health sciences students in Croatia regarding complete switch to e-learning during COVID-19 pandemic: a survey.

BACKGROUND: Croatia has closed all educational institutions after 32 cases of SARS-CoV-2 infection were confirmed and switched to exclusive e-learning. Health sciences university students may have been particularly affected with this change due to a lack of practical education. It is not known how health sciences students and schools have adjusted to exclusive e-learning. This study aimed to explore attitudes and concerns of health sciences students in Croatia regarding the complete switch to e-learning during the COVID-19 pandemic. METHODS: Eligible participants were students from 9 institutions offering university-level health sciences education in Croatia enrolled in the academic year 2019/2010, and participating in e-learning. Data were collected with a questionnaire distributed via email during April/May 2020. RESULTS: A total of 2520 students (aged 25.7 ± 7.7 years) responded to the questionnaire (70.3% response rate). General satisfaction with exclusive e-learning was rated with average grade of 3.7 out of 5. Compared with previous education, exclusive e-learning was rated with average grade of 3.2 out of 5. Compared to classroom learning, equal or higher motivation to attend exclusive e-learning was reported by 64.4% of participants. With a longer duration of exclusive e-learning, equal or higher motivation was reported by 65.5% of participants. Less than half of the students indicated they felt deprived or concerned due to the lack of practical lessons. Most participants indicated that in the future, they would prefer to combine classic classroom and e-learning (N = 1403; 55.7%). CONCLUSIONS: Most health sciences students were satisfied with the exclusive e-learning, as well as their personal and institutional adjustment to it. Students' feedback can help institutions to improve the exclusive e-learning experience for students in the time of the pandemic.

The Impact of Shift Work on Psychosocial Functioning and Quality of Life Among Hospital-Employed Nurses: A Cross-Sectional Comparative Study.

BACKGROUND: Approximately 20% of the European labour force is involved in some type of shift work, with nurses being on the forefront. In Bosnia and Herzegovina, a specific work scheme is pervasive in the health care arena, where all nurses involved in shift work are committed to eight night shifts per month - unlike other European countries that restrict the number of night shifts. Accordingly, we aimed to investigate whether such shift work significantly affects psychosocial functioning and the quality of life of hospital nursing personnel in this country. SUBJECTS AND METHODS: A comparative cross-sectional study design was applied on a total of 157 hospital nursing professionals at the University Clinical Hospital Mostar during 2019. Subjects were divided into two groups: a total of 51% study subjects worked in specific shifts (12-hour day shift / 24 hours off / 12-hour night shift / 48 hours off), while 49% subjects worked in accordance with the regular 7-hour daily schedule. Standard Shiftwork Index (SSI) questionnaire was used, alongside comprehensive socio-demographic and quality of life appraisal. Descriptive and inferential statistical methods were applied, and statistical significance was set at p<0.05. RESULTS: This study demonstrated increased amounts of stress, reduced coping abilities and reduced levels of life enjoyment in shift work nurses in comparison to day work nurses. Furthermore, increased anxiety, stress, psychoorganic symptoms and sleep disturbances were significantly more common in shift work hospital nursing staff. In our study, nurses that worked in shifts have experienced negative externalities such as decreased social functioning, as well as reduced family and leisure time. Conversely, significantly higher satisfaction rates with shift work were only shown in regards to compensation. CONCLUSIONS: Our results reveal many detrimental effects of shift work and contribute to the field of research that is still laden with gaps in understanding its exact impact on the overall health of nursing personnel. Going forward, prospective (and even interventional) studies will be needed to disentangle the exact interplay between work-related factors in various health care systems and subsequent psychosocial disorders in health personnel.

Contrasting Vantage Points between Caregivers and Residents on the Perception of Elder Abuse and Neglect During Long-Term Care.

BACKGROUND: Elder abuse and neglect can be defined as refusing or failing to fulfil a caregiver's obligation to meet the needs of elderly individuals in order to punish or hurt them. We aimed to explore perceptions of elder mistreatment of both caregivers and residents during long-term care, and highlight significant differences in the overall mistreatment perception regarding socio-demographic variables, as well as the type of care facility. SUBJECTS AND METHODS: The study involved 171 caregivers and 245 elderly individuals in stationary facilities. Two structured questionnaires were used - one for caregivers and the other for institutionalized elderly residents, whose initial validation concerning question and factor selection has been based upon exploratory factor analysis and discriminant validity. Parametric and nonparametric tests were employed in the statistical analysis, and statistical significance was set at p<0.05 (two-sided). RESULTS: We found significant differences in the perception of elder abuse and neglect between caregivers and elderly residents. More specifically, caregivers tend to recognize unnecessary or inappropriate medical/care procedures as indicators of elder mistreatment, while the elderly residents emphasize the removal of their personal belongings and inappropriate physical contact. According to the care facility, residents reported abuse/neglect more frequently in extended care units (21.4%), compared to the county-owned nursing home (11.4%) and private nursing home (12.1%) (p=0.001). Similarly, caregivers reported abuse/neglect more frequently in extended care units (75.4%), in comparison to county-owned nursing home (24.6%) and private nursing home (0%) (p=0.039). Shift work was also a significant predictor, as the morning nursing staff perceived abuse/neglect more frequently (p=0.011). CONCLUSIONS: This study has shown that residents and caregivers have contrasting vantage points in relation to elder abuse/neglect perception, which underlines the need for evidence-based standardization of procedures to prevent any type of elder mistreatment.

Irinotecan and Δ8-Tetrahydrocannabinol Interactions in Rat Liver: A Preliminary Evaluation Using Biochemical and Genotoxicity Markers.

There is growing interest regarding the use of herbal preparations based on Cannabis sativa for medicinal purposes, despite the poorly understood interactions of their main constituent Δ8-tetrahydrocannabinol (THC) with conventional drugs, especially cytostatics. The objective of this pilot study was to prove whether the concomitant intake of THC impaired liver function in male Wistar rats treated with the anticancer drug irinotecan (IRI), and evaluate the toxic effects associated with this exposure. IRI was administered once intraperitoneally (at 100 mg/kg of the body weight (b.w.)), while THC was administered per os repeatedly for 1, 3, and 7 days (at 7 mg/kg b.w.). Functional liver impairments were studied using biochemical markers of liver function (aspartate aminotransferase-AST, alanine aminotransferase-ALP, alkaline phosphatase-AP, and bilirubin) in rats given a combined treatment, single IRI, single THC, and control groups. Using common oxidative stress biomarkers, along with measurement of primary DNA damage in hepatocytes, the degree of impairments caused at the cellular level was also evaluated. THC caused a time-dependent enhancement of acute toxicity in IRI-treated rats, which was confirmed by body and liver weight reduction. Although single THC affected ALP and AP levels more than single IRI, the levels of liver function markers measured after the administration of a combined treatment mostly did not significantly differ from control. Combined exposure led to increased oxidative stress responses in 3- and 7-day treatments, compared to single IRI. Single IRI caused the highest DNA damage at all timepoints. Continuous 7-day oral exposure to single THC caused an increased mean value of comet tail length compared to its shorter treatments. Concomitant intake of THC slightly affected the levels of IRI genotoxicity at all timepoints, but not in a consistent manner. Further studies are needed to prove our preliminary observations, clarify the underlying mechanisms behind IRI and THC interactions, and unambiguously confirm or reject the assumptions made herein.

Characteristics and Distribution of Penile Lesions in Croatian Men with Laboratory-Confirmed Low-Risk and High-Risk Human Papillomavirus (HPV) Infection.

BACKGROUND: Studies that compare penoscopic evaluation with the results of molecular human papillomavirus (HPV) testing are scarce. This study assessed and compared both type and distribution of various penile lesions using penoscopy (peniscopy) technique in Croatian men with different, laboratory-confirmed HPV status. METHODS: From a large cohort of men attending an outpatient STD clinic for HPV testing, a total of 120 patients were randomly selected and grouped into those positive for low-risk HPV, high-risk HPV, both low-risk and highrisk HPV, and those with negative results. Samples for HPV-DNA detection were taken by penile brushing and tested with the hc2 HPV DNA Test using Hybrid Capture 2 technology. Lesions were observed by photocolposcope after the application of aqueous 5% acetic acid, and classified as flat (macular), papular, papillary, classical condyloma, PIN-suspicious and non-specific lesions. RESULTS: The results have shown that flat and non-specific acetowhite lesions were the most common overall. All groups differed significantly with respect to papular and papillary lesions. A combination of heterogeneous lesions (i.e., a mixed penoscopic pattern) was commonly observed in all HPV-positive groups, but was significantly lower in the HPV-negative group. A majority of lesions were located in the coronal sulcus, and the four groups differed with respect to the location only considering the lesions of the penile shaft. Distribution of lesions in different sites did not appear to be significantly different with respect to the group, although differences within the high-risk HPV group and the group with both low-risk and high-risk HPV were detected. CONCLUSIONS: Penoscopy is relevant, but not a conclusive diagnostic tool for differentiating HPV from non-HPV findings in men - thus combining it with an HPV DNA test represents a more reliable approach.

Proficiency and Practices of Nursing Professionals in Meeting Patients' Spiritual Needs within Palliative Care Services: A Nationwide, Cross-Sectional Study.

Spirituality and spiritual needs are integral parts of the human experience, but they are often particularly important for palliative care patients. Spirituality has numerous positive effects, especially for those dealing with serious illness. Nevertheless, the spiritual dimension is sometimes overlooked in patient care. This study aims to determine the frequency of addressing the spiritual needs of palliative care patients in Croatia and to investigate the self-perceived confidence of caregivers in this task. A quantitative cross-sectional study was conducted involving 194 nurses in specialised palliative care services across Croatia. A specially developed and validated questionnaire was used for this study. The most common intervention undertaken by respondents was "promoting hope and optimism in patients" (88.4%), while the least common intervention was "reading books and other publications to patients" (13.9%). No statistically significant differences were found in the frequency of spiritual care in relation to the respondent's level of education, professional experience and nursing environment. Approximately two-thirds of the surveyed nurses stated that they "often" or "always" provided some kind of spiritual care to palliative care patients. However, study participants who indicated that they had received sufficient formal instruction in addressing spiritual needs and spiritual care interventions demonstrated a statistically significant tendency to engage in these practices, as well as greater confidence in their knowledge and skills in this area compared to those who lacked such training. The study suggests that there is a need to identify existing barriers to the provision of spiritual care and to develop strategies to overcome them. By placing emphasis on the spiritual needs and preferences of patients, nursing professionals and other healthcare providers have the opportunity to elevate the standard of holistic care and foster a sense of comfort and dignity among patients.

Changes in hair cortisol levels and cognitive function among older patients in palliative care.

This monocentric pilot study aimed to assess whether there are significant changes in hair cortisol levels and cognitive functioning at baseline and after 3 weeks of hospitalisation in older palliative care patients, and to ascertain whether hair cortisol can be used as a pertinent stress biomarker in this population. Hair cortisol concentration levels were measured with the use of an enzyme-linked immunosorbent assay (ELISA), while cognitive functions were assessed by using 16-point Mini-Mental State Examination 2 (MMSE-2): brief version. A statistically significant difference in mean hair cortisol levels at the start of the hospitalisation was found when compared to the 3-week follow-up (p=0.007). No statistically significant differences were observed regarding MMSE-2 scores using the same time points. These results have direct clinical implications and set the stage for further research endeavours in the field.

Prevalence of Primary Dysmenorrhoea and Its Impact on Academic Performance among Croatian Students during the COVID-19 Pandemic.

Background: Dysmenorrhoea is one of the most common gynaecological problems. Therefore, it is important to investigate its impact during the COVID-19 pandemic which has a great impact on the lives of menstruating people all over the world. Aim: To determine the prevalence and impact of primary dysmenorrhoea on academic performance among students during the pandemic. Materials and Methods: This cross-sectional study was conducted in April 2021. All data were collected by an anonymous self-assessed web-based questionnaire. Due to voluntary participation in the study, 1210 responses were received, but 956 were left for analysis after exclusion criteria were applied. Descriptive quantitative analysis was performed and Kendall rank correlation coefficient was used. Results: The prevalence of primary dysmenorrhoea was 90.1%. Menstrual pain was mild in 7.4% of cases, moderate in 28.8%, and severe in 63.8%. The study found that primary dysmenorrhoea has a great perceived impact on all included aspects of academic performance. Most affected were concentration in class in 810 (94.1%) and doing homework and learning in 809 (94.0%) female students. There is also a correlation between menstrual pain intensity and its impact on academic performance (p < 0.001). Conclusions: Our study found that the prevalence of primary dysmenorrhoea among students at the University of Zagreb is high. Painful menstruation greatly impacts academic performance and therefore it is important to do more research on this topic.

Effects of concomitant use of THC and irinotecan on tumour growth and biochemical markers in a syngeneic mouse model of colon cancer.

Clinical treatment with the antineoplastic drug irinotecan (IRI) is often hindered by side effects that significantly reduce the quality of life of treated patients. Due to the growing public support for products with Δ9-tetrahydrocannabinol (THC), even though relevant scientific literature does not provide clear evidence of their high antitumour potential, some cancer patients take unregistered preparations containing up to 80 % THC. This study was conducted on a syngeneic colorectal cancer mouse model to test the efficiency and safety of concomitant treatment with IRI and THC. Male BALB/c mice subcutaneously injected with CT26 cells were receiving 60 mg/kg of IRI intraperitoneally on day 1 and 5 of treatment and/or 7 mg/kg of THC by gavage a day for 7 days. Treatment responses were evaluated based on changes in body, brain, and liver weight, tumour growth, blood cholinesterase activity, and oxidative stress parameters. Irinotecan's systemic toxicity was evidenced by weight loss and high oxidative stress. The important finding of this study is that combining THC with IRI diminishes IRI efficiency in inhibiting tumour growth. However, further studies, focused on more subtle molecular methods in tumour tissue and analytical analysis of IRI and THC distribution in tumour-bearing mice, are needed to prove our observations.

The effects of ketamine on viability, primary DNA damage, and oxidative stress parameters in HepG2 and SH-SY5Y cells.

Ketamine is a dissociative anaesthetic used to induce general anaesthesia in humans and laboratory animals. Due to its hallucinogenic and dissociative effects, it is also used as a recreational drug. Anaesthetic agents can cause toxic effects at the cellular level and affect cell survival, induce DNA damage, and cause oxidant/antioxidant imbalance. The aim of this study was to explore these possible adverse effects of ketamine on hepatocellular HepG2 and neuroblastoma SH-SY5Y cells after 24-hour exposure to a concentration range covering concentrations used in analgesia, drug abuse, and anaesthesia (0.39, 1.56, and 6.25 µmol/L, respectively). At these concentrations ketamine had relatively low toxic outcomes, as it lowered HepG2 and SH-SY5Y cell viability up to 30 %, and low, potentially repairable DNA damage. Interestingly, the levels of reactive oxygen species (ROS), malondialdehyde (MDA), and glutathione (GSH) remained unchanged in both cell lines. On the other hand, oxidative stress markers [superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT)] pointed to ketamine-induced oxidant/antioxidant imbalance.

Abuse and neglect of older people in health facilities from the perspective of nursing professionals: A cross-sectional study from Croatia.

BACKGROUND: Abuse and neglect of older people represent a salient public health issue that remains understudied in the current literature. However, most studies have focused on estimating the prevalence of mistreatment of older people, while litter priority has been put on healthcare professionals and their role in addressing this problem. OBJECTIVES: The aim of this paper was to determine nurses' perceptions of neglect and abuse of older persons within health facilities in Croatia. METHODS: A cross-sectional survey with convenience sampling approach was conducted on 632 nursing professionals between 26 March and 26 April 2020. Participation was voluntary and anonymous. A questionnaire from Drennan et al. (NCPOP, University College Dublin, Dublin, 2012), previously adapted by Neuberg et al. (Arch Ind Hyg Toxicol, 68, 2017, 190), was used as a survey instrument. Descriptive and inferential statistics has been used, as well as multivariable methods (reliability analysis). Significance was set at p < .05 (two-tailed). RESULTS: Abuse/neglect of older people was observed by 13.8% to 57.4% of nursing professionals, depending on the incident type. The most prevalent incidents observed were ignoring the call of an older person (57.4%), shouting at an older person in anger (41.1%) and force-feeding an older person (34.5%), while the least prevalent incidents observed were denial of food or some privileges as a form of punishment (13.8%). Male nursing professionals reported observing various forms of abuse significantly more often than their female counterparts (p = .038), without statistically significant age-related differences. Furthermore, mistreatment of older people was much more frequently observed in nursing homes (p = .013), with suboptimal the ratio of caregivers and care recipients, as well as by nursing professionals who work in shifts (p = .012). Reliability analysis demonstrated a satisfactory level of internal consistency for the used questionnaire. CONCLUSIONS: This study reinforces neglect and abuse of older people as a growing public health problem and puts the emphasis on its perception; hence, there is a need for systematic and continuous training of nursing professionals on preventing, identifying and responding to such mistreatment, with the aim of enhancing the quality of life in this vulnerable group. IMPLICATIONS FOR PRACTICE: This study contributes to the growing body of research on the quality of evidence-based nursing care of older people, most notably from providers' perspective - with direct implications for policy, practice, research and training.

Knowledge, Attitudes, Psychosocial Perspectives and Applied Epidemiology in the Control of Head Lice (pediculosis capitis) in Croatian Preschool Children: A Qualitative Study on Childcare Professionals and Health Coordinators.

This study aimed to concurrently determine the perceived knowledge, attitudes and perspectives of childcare professionals working in kindergartens towards pediculosis capitis, a common ectoparasitic disease also known as head lice, as well as gain insights into procedures and control measures that are implemented in an outbreak setting. We used a qualitative approach with a problem-centered, semi-structured and three-part interview technique conducted in selected kindergartens of Varazdin and Medimurje counties of the Republic of Croatia. Based on a purposive (deliberate) sampling method, the study included both childcare professionals and on-site health coordinators aged between 21 and 56 years of age. Five main themes were put forth as a result of the conducted thematic analysis: prevention and control measures for managing head lice, information and knowledge, social issues, psychological issues and disease perception. Each of these themes also had specific emerging categories based on participants' responses. Even though all respondents confirmed that the disease is continuously monitored only a few of them mentioned that a scalp examination was an inherent part of disease surveillance within the kindergarten community. Moreover, we found that information on pediculosis capitis is available to both parents and childcare professionals, but with a questionable uptake. Additionally, the majority of the respondents reported that parents tend to hide the infestation in their children due to shame and/or to avoid social stigma, and thus often fail to inform kindergarten teachers and health coordinators about the problem. In conclusion, our findings have implications for further practice and the introduction of tailored public health measures for the most vulnerable populations, most notably kindergarten children.

Antimicrobial Peptides-Mechanisms of Action, Antimicrobial Effects and Clinical Applications.

The growing emergence of antimicrobial resistance represents a global problem that not only influences healthcare systems but also has grave implications for political and economic processes. As the discovery of novel antimicrobial agents is lagging, one of the solutions is innovative therapeutic options that would expand our armamentarium against this hazard. Compounds of interest in many such studies are antimicrobial peptides (AMPs), which actually represent the host's first line of defense against pathogens and are involved in innate immunity. They have a broad range of antimicrobial activity against Gram-negative and Gram-positive bacteria, fungi, and viruses, with specific mechanisms of action utilized by different AMPs. Coupled with a lower propensity for resistance development, it is becoming clear that AMPs can be seen as emerging and very promising candidates for more pervasive usage in the treatment of infectious diseases. However, their use in quotidian clinical practice is not without challenges. In this review, we aimed to summarize state-of-the-art evidence on the structure and mechanisms of action of AMPs, as well as to provide detailed information on their antimicrobial activity. We also aimed to present contemporary evidence of clinical trials and application of AMPs and highlight their use beyond infectious diseases and potential challenges that may arise with their increasing availability.

Proposed dual antagonist approach for the prevention and treatment of urinary tract infections caused by uropathogenic Escherichia coli.

Urinary tract infections are among the most common infectious diseases worldwide, primarily caused by uropathogenic Escherichia coli (UPEC) strains that harbor type I pili and P pili on the surface. Standard E. coli therapy still entails antibiotic consumption, but urinary tract infections tend to recur at a very high rate. Due to the emergence of antibiotic resistant strains of UPEC, as well as high infection recurrence rates, there is a need for new approaches to efficiently treat and prevent urinary tract infections. Since aforementioned adhesive organelles are the principal virulence factors in UPEC, anti-adhesion strategy seems to be the most promising (and hitherto unexplored) treatment option. Here we propose an antiadhesive dual targeting approach towards FimH and PapG adhesive proteins placed on two key virulence factors for UPEC - type I fimbriae and P pili. Such dual antagonists will contain appropriate pharmacophores (mannose and natural cranberry-containing polyphenol) joined together and will more efficiently block the infection and prevent the progression of the disease in comparison to FimH and PapG as isolated targets. More specifically, polyphenol mannosides (due to the structural similarities with the most potent biaryl inhibitors) can act as high-affinity FimH ligands, while cranberry-associated polyphenol moiety can additionally inhibit the PapG-mediated adhesion. Proposed compound may also contribute to the antioxidant capacity of the human organism. In conclusion, this dual-target hypothesis for the prevention and treatment of UPEC infections represents an important foundation for further research on this topic.