Nurses' attitudes towards factors determining the safety of patients treated in intensive care units: Cross-sectional study.

BACKGROUND: The goal of health care systems is to ensure high quality of medical services provided, including patient safety. The intensive care unit (ICU) is an environment conducive to the occurrence of adverse events and medical errors because of the complexity of the care provided, the severity of the conditions of patients treated in these units and work often performed under stressful conditions. AIMS: Assessment of attitudes of nurses working in ICUs towards patient safety. STUDY DESIGN: A cross-sectional, descriptive study was conducted in a group of 214 nurses employed in ICUs in hospitals located in the southern part of Poland. METHOD: The study used the Polish version of the Attitudes towards safety: (SAQ-SF PL) questionnaire and an original questionnaire consisting of questions on socio-demographic and professional data. RESULTS: The overall SAQ score for the whole group was 61.89, 57.29 for adult ICU nurses and 68.20 for children's ICU. The surveyed nurses in general obtained the highest average results in terms of teamwork climate (TC)-66.92, while the lowest scores were given to the management-hospital management (PM)-45.08 and working conditions (WC)-57.56. job satisfaction (JS) positively correlated with the assessment of the TC, the assessment of the safety climate (SC), the assessment of the management staff (Head of Department) (PM), the assessment of the management staff (hospital management) (PM) and the assessment of work conditions (WC). A statistically significant, negative correlation was found between the assessment of JS and the assessment of stress recognition (SR) (r = -.20; p < .01). CONCLUSIONS: In the surveyed ICU branches, there is a low SC, and it is related, among others, to the perception of WC and the role of the management staff. The level of JS among nursing staff mainly depends on the SC, the TC, WC and the support of the management staff. RELEVANCE TO CLINICAL PRACTICE: The results of the research presented here provide valuable assistance in identifying areas related to patient safety in ICUs. Managers' awareness of the importance of coping with occupational stress, WC or effective teamwork can help to improve staff attitudes and attitudes towards patient safety. When shaping a safe culture in a health care organization, it is important to remember that ensuring safe patient care is not only about programmes, standards or procedures, but safety is primarily about human resources-the staff involved in the treatment process-doctors, nurses, paramedics and physiotherapists. High awareness of safety at work, cooperation in an interdisciplinary team, assessment of safety culture at work and analysis and drawing conclusions may result in a real increase in quality and safety, and the patient will feel safer in 'XX' hospitals.

Influence of the work environment of nurses on the 30-day mortality of patients hospitalized in Polish hospitals. cross-sectional studies.

BACKGROUND: An optimal work environment for nurses is characterized primarily by appropriate staffing, good team relations, and support from the management staff. These factors are consistently associated with a positive assessment of patient safety by a hospital's employees and a reduction in hospital mortality rates. AIM: To understand the relationships between the work environment as perceived by nurses on the 30-day mortality of patients treated in Polish hospitals. BACKGROUND: An optimal work environment for nurses is characterized primarily by appropriate staffing, good team relations, and support from the management staff. These factors are consistently associated with a positive assessment of patient safety by a hospital's employees and a reduction in hospital mortality rates. MATERIAL AND METHODS: The analysis used discharge data from 108,284 patients hospitalized in internal medicine and surgery departments in 21 hospitals (with 24/7 operations) in Poland. Administrative data included coded data to estimate 30-day mortality. A Nurses' satisfaction questionnaire, including the PES-NWI scale and the SAQ questionnaire, was used to assess the work environment of nurses (n = 1,929). Correlations between variables were assessed using the Pearson coefficient. The analysis used a Poisson regression model, which belongs to the class of generalized linear models. RESULTS: A lower 30-day mortality rate amongst patients was found among those treated in hospitals where the personnel feel that they may question the decisions or actions of their superiors regarding the care provided (r = - 0.50); nurses are informed about changes introduced on the basis of reports about negligence and mistakes (r = - 0.50); the ward nurse is a good manager (r = - 0.41); nurses receive timely information from the head of the department that may have an impact on their work (r = - 0.41). CONCLUSIONS: Factors related to care during hospital stay such as the organization of care at the ward level, analysis of care errors, the number of staff providing direct patient care, informing nurses about mistakes without punishment, and the possibility of nurses challenging the decisions or actions of superiors, which concerns care providing, affect the 30-day mortality of patients after the end of hospitalization in Polish hospitals.

Nurses' intention to leave their jobs in relation to work environment factors in Polish hospitals: Cross-sectional study.

BACKGROUND: The lack of nursing staff is a current problem not only in Poland, but also in the world. The decision of nurses to leave the workplace, apart from the financial aspect, often results from unfavourable working conditions related to the work environment. MATERIAL AND METHODS: The study was multicentre, cross-sectional. The study was conducted among a group of 1509 nurses employed in surgical and internal medicine wards in 21 hospitals in Poland. The key variables of the study were: the intention of the nurses to leave their jobs, the nurses' working environment, the level of satisfaction, the level of occupational burnout and the number of patients cared for on the last shift, the number of nurses on the last shift. The Practice Environment Scale of the Nursing Work Index (PES-NWI) and the Maslach Burnout Inventory (MBI) questionnaire were used in the research. RESULTS: Almost half of the surveyed nurses (48.84%) declared their willingness to leave their current workplace. The statistical analysis showed that nurses declaring their willingness to quit their job in the hospital where they were employed were significantly younger (42.88 vs. 45.04, p = 0.000), had shorter total length of service overall (19.96 vs. 23.20), and also in the hospital where they were employed (15.86 vs. 18.50, p = 0.000). The increase in the number of patients by one was significantly associated with a 1% increase in the risk of leaving work (OR = 1.01, 95% CI 1.00-1.02). An increase in emotional exhaustion significantly increased the risk of leaving work by 2% (OR = 1.02, 95% CI 0.99-1.03). CONCLUSIONS: Younger age of nurses, greater workload resulting from more patients and occupational burnout - emotional exhaustion is correlated with the risk of leaving work in the hospital. A lower risk of leaving the job is associated with a higher level of job satisfaction in the hospital, salary and promotion opportunities. Med Pr Work Health Saf. 2023;74(5):377-87.

Potential use of psilocybin drugs in the treatment of depression.

INTRODUCTION: Depression is a common disabling psychiatric disorder, which - in extreme cases - may lead to suicide if untreated or inadequately treated. Despite the availability of various treatments for depression, including pharmacotherapy, there is still a need to search for new agents with higher effectiveness and faster onset of action, especially for patients with treatment-resistant depression. AREAS COVERED: A substance that has attracted considerable attention for nearly a decade is psilocybin, a natural psychedelic found in psilocybin mushrooms. In this study, we evaluated the efficacy and safety of psilocybin in the treatment of depression, based on pivotal randomized clinical trials. Moreover, we used findings from observational studies regarding recreational use. We also looked at ongoing clinical trials and discussed the registration status and clinical potential of the drug. EXPERT OPINION: Clinical phase I-II trials published to date reported promising results for psilocybin in the treatment of patients with major depressive disorder and treatment-resistant depression, in a relatively short time after administration. However, before psilocybin is approved for use and administered to patients with depression, the results of large ongoing phase III clinical trials are needed to confirm its efficacy and safety and to change the way it is perceived by physicians and patients.

Opinion of nurses of internal medicine wards regarding factors determining their work - observational and cross-sectional studies.

OBJECTIVES: The aim of the study was to assess the factors determining the work of nurses in internal medicine departments. METHODS: The study was multicentre, cross-sectional, and observational. The selection of the research group was intentional. The subject of the study were 209 nurses working in 11 internal medicine departments in 10 hospitals in the region of southern Poland. RESULTS: The number of patients cared for by one nurse, nurses' participation in the decision-making process, and nurses' age were shown to be direct predictors of emotional exhaustion. The number of patients cared for by a single nurse, nurses' participation in the decision-making process, and age were direct predictors of depersonalization. It was shown that significant (p < 0.05) independent (multivariate analysis) variables of the job satisfaction subscale were information on support for nurses at work by managerial staff and nurses' participation in the decision-making process. After analysing the impact of socio-demographic factors on the nurses' working environment, it was found that the participation of nurses in the decision-making process was significantly lower in the youngest group than in the other age groups (p = 0.006). CONCLUSIONS: Participation of nurses in the decision-making process is a direct determinant of occupational burnout. A higher number of patients under the care of a nurse, lack of participation in the decision-making process and a higher age of nurses are predictors of emotional exhaustion and depersonalization.

Factors Influencing the Rationing of Nursing Care in Selected Polish Hospitals.

Introduction: The rationalization of nursing care can be a direct consequence of the low employment rate or unfavorable working environment of nurses. Aim: The aim of the study was to learn about the factors influencing the rationing of nursing care. Methods: The study group consisted of 209 nurses working in internal medicine departments. The study used the method of a diagnostic survey, a survey technique with the use of research tools: the BERNCA-R questionnaire and the PES-NWI questionnaire (which includes the occupational burnout questionnaire). Results: The mean total BERNCA score for rationing nursing care was 1.94 ± 0.75 on a scale from 0 to 4. A statistically significant relationship was demonstrated between the work environment and the rationing of nursing care. The results of the BERNCA-R scale correlated statistically significantly and positively (r > 0) with two (out of three) subscales of the occupational burnout questionnaire (MBI­Maslach Burnout Inventory): emotional exhaustion and depersonalization (p < 0.001), and with all types of adverse events analyzed (p < 0.05). Conclusions: The higher the frequency of care rationing, the worse the assessment of working conditions by nurses, and, therefore, more frequent care rationing determined the more frequent occurrence of adverse events. The more frequent the care rationing, the more frequent adverse events occur.

Opicapone as an add-on to levodopa for reducing end-of-dose motor fluctuations in Parkinson's disease: a systematic review and meta-analysis.

Aim: To assess the clinical efficacy and safety profile of opicapone (25 and 50 mg once daily) versus placebo. Patients: Levodopa-treated adults with Parkinson's disease. Material & methods: A systematic review and meta-analysis were conducted. Results: Opicapone provided a greater reduction in the absolute OFF-time, increased the chances of ≥1-h reduction in the OFF-time and ≥1-h increase in the ON-time compared with placebo. Receiving opicapone more often facilitated levodopa dose reduction versus placebo. There were no differences in the occurrence of adverse events (severe and leading to drug discontinuation), but receiving opicapone increased the frequency of dyskinesia. Conclusion: Opicapone demonstrated superior clinical efficacy to placebo, with a comparable general safety profile.

Evaluating Polish nurses' working conditions and patient safety during the COVID-19 pandemic.

AIM: To study the relationship between Polish nurses' working conditions and their attitudes towards patient safety during the COVID-19 pandemic. BACKGROUND: Facing the COVID-19 pandemic, caused by the SARS-CoV-2 virus, healthcare worldwide has been reorganised. How these changes affected patient safety for hospitalised persons is not well understood. INTRODUCTION: Difficult working conditions related to the outbreak of the COVID-19 pandemic may affect the provision of safe and effective care by healthcare staff. METHODS: This observational research was performed on the group of 577 nurses working during the COVID-19 pandemic in isolation infection wards (n = 201) and non-infectious diseases wards (n = 376) in Polish hospitals. The evaluation of working conditions was performed with an author's questionnaire, while the evaluation of factors influencing attitudes towards safety of the hospitalised patients was performed using Safety Attitudes Questionnaire. The STROBE checklist was used to report this study. RESULTS: The procedures developed by management in advance for COVID-19 patient treatment had a statistically significant influence on nurses' 'evaluation of teamwork climate, safety climate, job satisfaction, perception of management and work conditions'. Providing management with the ability to perform a swab polymerase chain reaction SARS-CoV-2 test for hospital staff in the workplace, and psychological support from professionals and employers were statistically significant for higher ratings of 'teamwork climate, safety climate, job satisfaction, stress recognition, perception of management and work conditions' by the Polish nurses. Hospital workload during the COVID-19 pandemic was significantly correlated with lower evaluation of work conditions. DISCUSSION: Our study reinforces the existing literature on many fronts and demonstrates how even when operating under the COVID-19 pandemic conditions, some factors remain critical for fostering a culture of patient safety. Reinforcing patient safety practices is a imperative under these conditions. CONCLUSIONS AND IMPLICATIONS FOR NURSING: Working conditions influence nurses' attitudes towards safety of the hospitalised patients. These are largely modifiable factors related to the workplace and include prior preparation of procedures, restrictions to extending daily work hours and psychological counselling for the staff.

Nurses and physicians attitudes towards factors related to hospitalized patient safety.

INTRODUCTION: The attitudes of healthcare staff towards patients' safety, including awareness of the risk for adverse events, are significant elements of an organization's safety culture. AIM OF RESEARCH: To evaluate nurses and physicians' attitudes towards factors influencing hospitalized patient safety. MATERIALS AND METHODS: The research included 606 nurses and 527 physicians employed in surgical and medical wards in 21 Polish hospitals around the country. The Polish adaptation of the Safety Attitudes Questionnaire (SAQ) was used to evaluate the factors influencing attitudes towards patient safety. RESULTS: Both nurses and physicians scored highest in stress recognition (SR) (71.6 and 80.86), while they evaluated working conditions (WC) the lowest (45.82 and 52,09). Nurses achieved statistically significantly lower scores compared to physicians in every aspect of the safety attitudes evaluation (p<0.05). The staff working in surgical wards obtained higher scores within stress recognition (SR) compared to the staff working in medical wards (78.12 vs. 73.72; p = 0.001). Overall, positive working conditions and effective teamwork can contribute to improving employees' attitudes towards patient safety. CONCLUSIONS: The results help identify unit level vulnerabilities associated with staff attitudes toward patient safety. They underscore the importance of management strategies that account for staff coping with occupational stressors to improve patient safety.

The Correlation between Nurses' COVID-19 Infections and Their Emotional State and Work Conditions during the SARS-CoV-2 Pandemic.

The COVID-19 pandemic caused by the SARS-CoV-2 virus has significantly influenced the functioning of Polish hospitals, and thus, the working conditions of nurses. Research on the presence of specific negative emotions in nurses may help identify deficits in the future, as well as directing preventive actions. The present research was performed among nurses (n = 158) working in Polish healthcare facilities during the third wave of the COVID-19 pandemic caused by the SARS-CoV-2 virus, where Group A (n = 79) consisted of nurses diagnosed with COVID-19, and Group B (n = 79) nurses who have never been infected with COVID-19. To perform the research, the Courtauld Emotional Control Scale (CECS), Trait Anxiety Scale (Polish: SL-C) and the authors' survey questionnaire were used. A positive test result was generally determined more often among nurses who indicated a noninfectious ward as their main workplace, compared to nurses employed in infectious wards (64.55% positive vs 33.45% negative). Over a half of the subjects identified moderate levels of emotion suppression as the method to regulate strong emotions, while one-quarter cited high levels of suppression. Anxiety was suppressed at high and moderate levels by 97% of the subjects, depression by 86.71%, and anger by 79.48%. Infection with COVID-19 results in a higher level of anxiety and depression, as well as a feeling of increased work load.

Impact of the Work Environment on Patients' Safety as Perceived by Nurses in Poland-A Cross-Sectional Study.

Numerous studies have found that organizational features connected with the work environment of nurses have a significant influence on patients' safety. The aim of this research was to capture nurses' opinions about patients' safety and discern relationships with work environment characteristics. This cross-sectional study surveyed 1825 nurses. The research used questionnaire consisting of four parts: (1) covered The Practice Environment Scale of the Nursing Work Index (PES-NWI); (2) assessed the quality of nursing care and care safety; (3) contained information on the most recent duty served by the nurses and (4) captured social and demographic data of participants. The research identified strong association between patient safety assessment and work environment of nurses in the aspect of employment adequacy, cooperation between nurses and doctors, support for nurses from the managing staff, the possibility to participate in the management as well as professional promotion of nurses employed in the hospital (p < 0.001). Nurses rated patient safety higher when responsible for a smaller number of patients. Work environment factors such as proper staffing, good cooperation with doctors, support from the management, as well as professional independence are significantly related to nurses' assessment of patients' safety.

Emotional Control among Nurses against Work Conditions and the Support Received during the SARS-CoV-2 Pandemic.

INTRODUCTION: Working in the state of a pandemic is a huge mental load for the medical environment. AIM: Evaluation of emotional control among nurses against work conditions and the support received during the SARS-CoV-2 pandemic. MATERIAL AND METHODS: The research was performed among nurses (n = 577) working during the pandemic caused by the SARS-CoV-2 virus in infectious (n = 201) and non-infectious (n = 376) wards in 11 Polish hospitals. To evaluate work conditions, the questionnaire prepared by the authors and the Emotional Control Scale (Courtauld Emotional Control Scale-CECS), which rates the control of anger, depression, and fear were used. RESULTS: In the entire research group, fear had the highest rate of suppression among the negative emotions-18.25 points, 17.91 points in infectious wards and 18.44 points among nurses working in non-infectious wards; p > 0.05. The nurses fear was significantly repressed when there was no possibility of the nurses having to perform a COVID-19 test in the workplace; p < 0.05. A larger emotional supressed occurred in nurses who simultaneously declared the perception of increased stress level; p < 0.05. CONCLUSIONS: A high level of emotion suppression, especially regarding fear, combined with higher stress levels, occurring irrespective of the ward, points at the need for mental support for the researched nurses.

Cultural adaptation of the Safety Attitudes Questionnaire - Short Form (SAQ-SF) in Poland.

BACKGROUND: It is essential to provide safe healthcare in complex, difficult, and quickly changing conditions. The quality of healthcare services directly influences the safety of both the patients and staff. Understanding healthcare staff attitudes toward safety in the healthcare delivery context is foundational for building a culture of safety. AIM OF THE WORK: To adapt, via a structured translation methodology, the Safety Attitudes Questionnaire-Short Form (SAQ-SF), which assesses how employees of the health care sector perceive the safety climate in their workplace, to the Polish context. METHODS: Using a content validation approach to structure the translation process, we tested and psychometrically analysed the translated SAQ-SF. The sample comprised 322 employees of a district hospital (second referral level, which ensures 24/7 emergency care services) in Poland. RESULTS: The reliability of the sub-scales of the Polish version of the SAQ-SF ranged from 0.66 to 0.95. The discriminatory power of particular SAQ items ranged between 0.02 and 0.90. For 6 out of the 8 scale dimensions, the questions with the highest factor loadings were those measuring the same dimensions of the safety climate, according to the original scale. CONCLUSIONS: The Polish version of the SAQ-SF (SAQ-SF-PL) meets the criteria of psychometric and functional validation as well as demonstrates good reliability as a measure of patient safety culture in the Polish context. The SAQ-SF-PL is an instrument that enable a valid and reliable assessment of patient safety climate in the Polish healthcare facilities and identify opportunities for improvement. International comparisons will also become easier.

[Dual practice of nurses in Poland against the current staff resources]. / Podwójna praktyka pielegniarek w Polsce na tle aktualnych zasobów kadrowych.

BACKGROUND: Employment of health care workers simultaneously in 2 workplaces (the so called dual practice) is a common phenomenon in almost every country. In Poland, a possibility of employment in 2 or more workplaces arose with the socio-political changes and the reform of the health care system. In Poland, the scale of the phenomenon, as well as its motifs and potential effects influencing both employees and the whole health care system, are still not known despite numerous studies being conducted to that end. MATERIAL AND METHODS: The study group consisted of 1023 nurses (males and females) employed in public and non-public health care facilities in the territory of the Lesser Poland Voivodeship. The research tool was the authors' poll questionnaire. In the statistical elaboration, the non-parametric Mann-Whitney U test and the χ2 independence test were used. For all the analyses, the maximum permissible error of type I, α = 0.05, was accepted, and p ≤ 0.05 was recognized as statistically significant. RESULTS: Work experience of the nurses studied ranged 1-43 years, on average it was 23.1 years (SD = 11.1). Persons aged >40 years accounted for 77.5% (N = 793), out of whom 38.2% (N = 391) were aged 41-years and 39.3% (N = 402) >50 years. In the study group, 450 (44%) people were employed in 2 workplaces, out of whom 93.5% in the nurse position, working >160 h/month (39%). A decisive reason to take up an additional job (93.3% of the study group) were financial matters. CONCLUSIONS: Financial matters are the main reason for which almost half of the studied nurses undertake additional employment, in the scope twice as high as the work load. Research suggests the need to verify the Central Registry of Nurses and Midwives in order to precisely estimate the number of dual practice positions and the number of persons employed as nurses not only in the south of Poland but also in whole country. The results point to the necessity of further research concerning both the reasons for and consequences of dual practice for nurses, and the impact of this phenomenon on the quality of care and patient safety. Med Pr. 2021;72(2):113-21.

Egg consumption and cardiovascular risk: a dose-response meta-analysis of prospective cohort studies.

PURPOSE: Cardiovascular disease (CVD) is a leading cause of mortality globally and is strongly influenced by dietary risk factors. The aim was to assess the association between egg consumption and risk of CVD risk/mortality, including coronary heart disease (CHD), stroke, and heart failure. METHODS: MEDLINE, Embase, and Web of Science databases were searched through April 2020 for prospective studies. Two independent reviewers screened and extracted the data through standardized methods. Size effects were calculated as summary relative risks (SRRs) in a dose-response fashion through random-effects meta-analyses. RESULTS: Thirty-nine studies including nearly 2 million individuals and 85,053 CHD, 25,103 stroke, 7536 heart failure, and 147,124 CVD cases were included. The summary analysis including 17 datasets from 14 studies conducted on CVD (incidence and/or mortality) showed that intake of up to six eggs per week is inversely associated with CVD events, when compared to no consumption [for four eggs per week, SRR = 0.95 (95% CI: 0.90; 1.00)]; a decreased risk of CVD incidence was observed for consumption of up to one egg per day [SRR = 0.94 (95% CI: 0.89; 0.99)]. The summary analysis for CHD incidence/mortality including 24 datasets from 16 studies showed a decreased risk up to two eggs per week [(SRR = 0.96 (95% CI: 0.91; 1.00)]. No associations were retrieved with risk of stroke. The summary analysis for heart failure risk including six datasets from four studies showed that intake of one egg per day was associated with increased risk raising for higher intakes compared to no consumption [for 1 egg per day, SRR = 1.15 (95% CI:1.02; 1.30)]. After considering GRADE criteria for strength of the evidence, it was rated low for all outcomes but stroke, for which it was moderate (yet referring to no risk). CONCLUSION: There is no conclusive evidence on the role of egg in CVD risk, despite the fact that higher quality studies are warranted to obtain stronger evidence for a possible protection of CVD associated with moderate weekly egg consumption compared to no intake; equally, future studies may strengthen the evidence for increased heart failure risk associated with high regular egg consumption.

Dietary phytoestrogens and biomarkers of their intake in relation to cancer survival and recurrence: a comprehensive systematic review with meta-analysis.

CONTEXT: Recent studies have outlined the potential role of dietary factors in patients who have survived cancer. OBJECTIVE: The aim of this study was to summarize the evidence of the relation between dietary intake of phytoestrogens and their blood biomarkers and, overall, cancer-specific mortality and recurrence in patients with cancer. DATA SOURCES: A systematic search of PubMed, EMBASE, and Web of Science databases of studies published up to September 2019 was performed. Databases were searched for prospective and retrospective cohort studies reporting on dietary phytoestrogen intake and/or blood biomarkers and the outcomes investigated. DATA EXTRACTION: Data were extracted from each identified study using a standardized form. DATA ANALYSIS: Twenty-eight articles on breast, lung, prostate, and colorectal cancer, and glioma were included for systematic review. Given the availability of studies, a quantitative meta-analysis was performed solely for breast cancer outcomes. A significant inverse association among higher dietary isoflavone intake, higher serum/plasma enterolactone concentrations, and overall mortality and cancer recurrence was found. Among other cancer types, 2 studies reported that higher serum enterolactone and higher intake of lignans were associated with cancer-specific survival for colorectal cancer and glioma, respectively. CONCLUSIONS: Dietary phytoestrogens may play a role in survival from breast cancer ; evidence regarding other cancers is too limited to draw any conclusions.

Glutamatergic dysregulation in mood disorders: opportunities for the discovery of novel drug targets.

INTRODUCTION: Recently, a considerable attention has been paid to glutamatergic conception of mood disorders. The development of new treatment strategies targeted at glutamate provides new opportunities for the treatment of mood disorders. It is expected that these novel therapeutic options will provide a fast and sustained antidepressant effect and will be better tolerated by patients than the currently available antidepressants. AREAS COVERED: This paper discusses glutamatergic abnormalities in mood disorders and reviews novel glutamate-based drugs developed for the treatment of these disorders. We have searched the PubMed and EMBASE databases, presented the results of relevant clinical studies and also describe novel glutamate-based agents that are under investigation. EXPERT OPINION: The glutamatergic system plays many important roles in energy metabolism of the brain and neurotransmission; therefore, any attempt to identify novel therapeutic targets within this system seems justified. The effective development of new glutamate-based drugs requires, among others, a more in-depth exploration and understanding of the anatomy, function, and localization of different glutamatergic receptors in the brain. In our opinion, novel glutamate-based antidepressants will find application in the treatment of mood disorders and present an option will be widely used in clinical practice in the future.

Efficacy of single and repeated administration of ketamine in unipolar and bipolar depression: a meta-analysis of randomized clinical trials.

BACKGROUND: Due to unmet clinical needs for efficient drugs with a rapid onset of antidepressant effects, we aimed to evaluate the efficacy of single-dose ketamine in different subgroups of patients with major depression and establish whether repeated ketamine administration could be a viable strategy to maintain treatment gains. METHODS: Electronic databases (Medline via PubMed, Embase, Cochrane Library, Trip Database) were systematically searched until February 22, 2019, for published peer-reviewed randomized controlled trials (RCTs) concerning a single and repeated administration of ketamine in patients with major depression. All relevant RCTs were selected and critically appraised, and a meta-analysis of eligible studies was performed. RESULTS: A total of 20 studies were included in the meta-analysis. The largest effect of ketamine vs. controls in reducing depressive symptoms was observed at 24 h (SMD = - 0.89; 95% CI - 1.24; - 0.53; p < 0.00001); however, a significant difference was shown for up to 7 days after a single dose. Significant differences compared with controls were observed for up to 7 days in treatment-resistant patients and when ketamine was added to ongoing antidepressant treatment, while there were no significant differences at 7 days when ketamine was used as monotherapy. In patients with major depression, initial antidepressant effects of ketamine were maintained during repeated dosing. At 2-3 weeks of repeated ketamine treatment, significant reduction of depression severity scores was observed: SMD = - 0.70; 95% CI - 1.15; - 0.25 or SMD = - 0.81; 95% CI - 1.41; - 0.20 (depending on the dosing regimen used); p ≤ 0.009 vs placebo. CONCLUSIONS: Our meta-analysis revealed rapid and robust antidepressant effects of single-dose ketamine in patients with treatment-resistant depression (TRD). By pooling data from RCTs, we showed for the first time that repeated ketamine administration is effective in sustaining initial antidepressant effects observed after single dosing.

New alternative in the treatment of rheumatoid arthritis: clinical utility of baricitinib.

Baricitinib is an innovative small-molecule drug that reversibly inhibits continuous activation of JAK/STAT pathway, thus reducing joint inflammation. The drug was approved for use as monotherapy or in combination with methotrexate (MTX) in the treatment of adults with moderately to severely active rheumatoid arthritis (RA). The aim of this paper was to review the studies on pharmacology, mode of action, pharmacokinetics, efficacy, and safety of baricitinib in patients with RA. Baricitinib provides an innovative approach to modulating the immune and inflammatory response in patients with RA, which is especially important in individuals who do not respond to disease-modifying antirheumatic drugs or standard biologic drugs (tumor necrosis factor inhibitors) or who lose response over time. Baricitinib therapy reduces symptoms of RA and improves the quality of life. Moreover, it has shown high efficacy and an acceptable safety profile in Phase III randomized controlled trials (RCTs) and become another JAK inhibitor approved for RA treatment, providing a useful alternative option. RCTs have revealed a significant benefit of baricitinib over placebo, MTX, and adalimumab in terms of standard efficacy outcomes, especially the American College of Rheumatology ACR20, ACR50, and ACR70 response rates. Additionally, a clinically meaningful improvement in patient-reported outcomes, including the quality of life, compared with placebo has been reported. The safety profile seems acceptable, although some rare but potentially severe adverse events have been observed, such as serious infections, opportunistic infections (eg, herpes zoster), malignancies, and cardiac or hepatic disorders. Baricitinib administered at an approved dose of 2 or 4 mg once daily offers a novel and promising alternative to parenterally administered biologic drugs used in RA treatment.

Coffee consumption and colorectal cancer risk: a dose-response meta-analysis on prospective cohort studies.

Evidence regarding the influence of coffee drinking on colorectal cancer (CRC) is limited, and it remains unclear whether coffee consumption is associated with the risk of the disease. To clarify this association, a comprehensive meta-analysis was performed. The risk of CRC was compared between the categories of coffee consumption, and a dose-response relationship was studied using restricted cubic splines. We did not find evidence for the association between coffee consumption and CRC risk. Among alternative study inclusions, when using pooled projects, coffee consumption was related with a decreased risk of colon cancer in a subgroup analysis of never-smokers and in Asian countries, and with an increased risk of rectal cancer in an analysis of the general population and after restriction to women, never-smokers, and European countries. In conclusion, the association between coffee consumption and CRC risk is controversial and should be clarified in further cohort studies.