Lipid Alteration Signature in the Blood Plasma of Individuals With Schizophrenia, Depression, and Bipolar Disorder

Importance

No clinically applicable diagnostic test exists for severe mental disorders. Lipids harbor potential as disease markers.

Objective

To define a reproducible profile of lipid alterations in the blood plasma of patients with schizophrenia (SCZ) independent of demographic and environmental variables and to investigate its specificity in association with other psychiatric disorders, ie, major depressive disorder (MDD) and bipolar disorder (BPD).

Design, Setting, and Participants

This was a multicohort case-control diagnostic analysis involving plasma samples from psychiatric patients and control individuals collected between July 17, 2009, and May 18, 2018. Study participants were recruited as consecutive and volunteer samples at multiple inpatient and outpatient mental health hospitals in Western Europe (Germany and Austria [DE-AT]), China (CN), and Russia (RU). Individuals with DSM-IV or International Statistical Classification of Diseases and Related Health Problems, Tenth Revision diagnoses of SCZ, MDD, BPD, or a first psychotic episode, as well as age- and sex-matched healthy controls without a mental health-related diagnosis were included in the study. Samples and data were analyzed from January 2018 to September 2020.

Main Outcomes and Measures

Plasma lipidome composition was assessed using liquid chromatography coupled with untargeted mass spectrometry.

Results

Blood lipid levels were assessed in 980 individuals (mean [SD] age, 36 [13] years; 510 male individuals [52%]) diagnosed with SCZ, BPD, MDD, or those with a first psychotic episode and in 572 controls (mean [SD] age, 34 [13] years; 323 male individuals [56%]). A total of 77 lipids were found to be significantly altered between those with SCZ (n = 436) and controls (n = 478) in all 3 sample cohorts. Alterations were consistent between cohorts (CN and RU: [Pearson correlation] r = 0.75; DE-AT and CN: r = 0.78; DE-AT and RU: r = 0.82; P < 10-38). A lipid-based predictive model separated patients with SCZ from controls with high diagnostic ability (area under the receiver operating characteristic curve = 0.86-0.95). Lipidome alterations in BPD and MDD, assessed in 184 and 256 individuals, respectively, were found to be similar to those of SCZ (BPD: r = 0.89; MDD: r = 0.92; P < 10-79). Assessment of detected alterations in individuals with a first psychotic episode, as well as patients with SCZ not receiving medication, demonstrated only limited association with medication restricted to particular lipids.

Conclusions and Relevance

In this study, SCZ was accompanied by a reproducible profile of plasma lipidome alterations, not associated with symptom severity, medication, and demographic and environmental variables, and largely shared with BPD and MDD. This lipid alteration signature may represent a trait marker of severe psychiatric disorders, indicating its potential to be transformed into a clinically applicable testing procedure.

COVID-19 Fear Impact on Israeli and Maltese Female "Help" Profession Students

BACKGROUND

The aim of this cross-sectional study was to examine the impact of COVID-19 fear on the well-being of Israeli and Maltese female "help" profession (e.g., social work and psychology) undergraduate students. This cross-national comparison includes factors of depression, anxiety, anger, loneliness, nervousness, substance use, eating behavior, burnout, and resilience. The study hypothesis is that country status, even with different social-cultural characteristics including religiosity, is not a significant factor associated with COVID-19 fear impact on select behavioral characteristics of female university students.

METHODS

A total of 453 female "help" profession students completed an online survey from January to July 2021. Various statistical methods of analysis including regression were used for this study.

RESULTS

The mean COVID-19 fear scores were the same among Israeli and Maltese students. Resilience was found to be higher among Israeli females; burnout was found to be higher among those from Malta. Substance use (i.e., tobacco, alcohol, cannabis, stimulants, or prescription drugs) in the last month was reported by 77.2% of the respondents. No significant differences were found for previous-month substance use based on country status. Regardless of country, respondents who reported more previous-month substance use had higher COVID-19 fear and burnout scores, as well as lower resilience. Due to COVID-19, most respondents (74.3%) reported deterioration of their psycho-emotional well-being in the last month; however, no significant differences were found based on country and religiosity statuses. Furthermore, no significant differences were found for eating behavior changes and weight increase based on country and religiosity statuses.

CONCLUSION

Study findings showed the impact of COVID-19 fear on the well-being of Israeli and Maltese female "help" profession undergraduate students. This study examined only female students; however, additional research is needed to address male students and their experiences. Prevention and treatment intervention measures aimed to increase resilience and decrease burnout, including those that can be made available on campus, should be thought about by university administration personnel and student association leaders in consultation with mental health professionals.

Gaming Disorder and Psycho-Emotional Wellbeing among Male University Students and Other Young Adults in Israel

The aim of this cross-sectional study was to examine the impact of gaming and gaming disorder on the wellbeing of Israeli male university students and other adults. Gaming disorder (i.e., persistent, and recurrent gaming activity associated with a lack of control that may be clinically diagnosed) was determined using the Internet Gaming Disorder Scale-Short-Form (IGDS9-SF). Survey participants were recruited from gaming associations, clubs and the gaming community using Facebook. Data were collected in June 2022. A total of 526 males completed the survey (30.9% university students and 69.1% other young adults). Various statistical methods of analysis including regression were used for this study. Significant study group differences revealed university students with more indications of gaming disorder, more burnout, less loneliness, more stimulant (i.e., Ritalin) use, a greater consumption of salt- and/or sugar-loaded foods and lower economic wellbeing. The levels of resilience (i.e., the ability to recover from stress), substance use (e.g., tobacco and alcohol) and weight gain were similar for the two groups. Regression analysis showed gaming disorder as a key predictor of burnout, economic wellbeing and resilience. This study examined only male gamers because of the small number of female respondents. However, additional research is needed about female internet gamers, including their possible exposure to online harassment and sexual degradation. Additionally, additional research should be considered to verify the present study's findings about gamers based on demographic factors and gaming disorder levels. Prevention and treatment intervention measures, including those that can be made available on campus, should be thought about by university administration personnel and student association leaders in consultation with professionals who are experienced in reducing gaming disorder and other harmful behaviors among students.

What Do Israeli Gerontology Students Think About Medical Marijuana Use for Alzheimer’s and Parkinson’s Disease?

Aims: The aims of the current study were as follows: 1) to assess gerontology graduate students’ beliefs about medical marijuana’s (MMJ) effectiveness for two common age-related conditions - Alzheimer’s (AD) and Parkinson’s disease (PD); 2) to assess students’ beliefs and attitudes toward MMJ; 3) to explore associations linking background characteristics, MMJ-related attitudes and beliefs, and beliefs about the MMJ effectiveness for AD and PD. Method: A sample of 104 (84 women and 20 men) gerontology graduate students voluntarily participated in an anonymous online survey. Results: The vast majority (95%) of the participants indicated they had no formal education about MMJ and reported being unprepared to answer clients’ MMJ-related questions (84.6%). Most of the participants believed that MMJ is effective for use with AD (70.2%) and PD (80.8%) patients. Participants reported favorable beliefs about MMJ benefits, concerns about risks, the need for training, and positive attitudes toward recreational marijuana use legalization. Prior marijuana use (e.g., self-use, friends or family) was found to be associated with more positive beliefs about MMJ benefits, risks, and its legalization for recreational purposes. Prior marijuana use was the only factor associated with the belief that MMJ is an effective therapy for use with individuals diagnosed with AD or PD. Conclusions: The study findings stress the need for students’ MMJ education in order to provide future gerontology service providers with the necessary knowledge and ability to address clients’ questions about MMJ use. Efforts to develop curricula and training programs need to be promoted.

Sex differences in social functioning of patients with schizophrenia depending on the age of onset and severity of the disease

AIM

Schizophrenia manifests differently in women and men. This disease starts at a young age, leads to disability at working age. The aim of our work was to study sex differences, association between social factors and different parameters of the clinical picture and the course of the disease.

METHODS

This study was performed using population of Russian patients (men: 345, women: 310). Patients were examined using DSM-V, Bush-Francis catatonia rating scale (BFCRS), Positive and Negative Syndrome Scale (PANSS), 4-Items Negative Symptoms Assessment (NSA-4) and Frontal Assessment Battery (FAB).

RESULTS

Sex differences were mainly shown through negative symptoms, which were more severe in male patients. Men were shown to experience a decrease in social functioning and earlier age of onset. A positive family history further influenced negative symptoms and age of onset. When comparing scores before and after inpatient treatment (4 weeks), sex differences were not so pronounced. Female patients and patients with high levels of education, no conflictual relationship with family and active labour activity showed a later age of onset of the prodromal events and manifestation age. The decrease in the number of social contacts correlated with lower age of disability. The association between social factors and the severity of psychotic symptoms was shown across DSM-V, PANSS, NSA-4 and FAB, but not for BFCRS. Social factors were associated with negative symptoms of schizophrenia, but not with positive.

CONCLUSION

For successful treatment of patients with schizophrenia, the discussed factors must be considered and schizophrenia treatment methods should be primarily aimed at improving social functioning.

Associations of Genetic Polymorphisms and Neuroimmune Markers With Some Parameters of Frontal Lobe Dysfunction in Schizophrenia

We investigated the associations of DRD3 rs6280, HTR1A rs6295, BDNF rs6265, SCL6A4 rs16965628, and 5HT2A rs7322347 with schizophrenia in a case-control study, and associations of these genetic variants with several clinical features. We also investigated markers of inflammatory response (C-reactive protein, IL-2, IL-6, IL-10), the activity of leukocytic elastase (LE) and α1-proteinase inhibitor (a1-PI), antibodies to S100B and myelin basic protein (MBP) in schizophrenia. Clinical symptoms were assessed on three scales: Positive and Negative Syndrome Scale, The Bush - Francis Catatonia Rating Scale and Frontal Assessment Battery. All SNPs were typed using predesigned TaqMan SNP genotyping assays. The biomarkers related to the immune system were routinely tested using ELISA kits. The association with schizophrenia was found for DRD3 rs6280 (p = 0.05) and HTR2A rs7322347 (p = 0.0013). We found differences between groups by parameters of LE and a1-PI and LE/a1-PI (p < 0.001). And IL-6 was evaluated in the schizophrenia group (p < 0.001). We showed that patients with the TT allele (BDNF rs6265) had more severe impairments in frontal lobe function. a1-PI can serve as a marker for assessing the severity of frontal lobe damage in patients with frontal dementia. We found some biological parameters reflecting the severity of frontal dysfunction in schizophrenia.

Attitudes and knowledge about medical cannabis among Israeli and American nursing students

BACKGROUND

Although medical cannabis regulations are emerging in many places around the world, a contentious conundrum remains within the medical establishment regarding the appropriate part that cannabis may have in the provision of health care. Nurses have an indispensable role in the care management of patients, and given the consideration of cannabis as a possible treatment, they are warranted to be aware of its medical properties, as well as to be able to adequately answer patient queries. Nevertheless, very little is currently known about nurses' perceptions related to medical cannabis.

OBJECTIVE

To assess attitudes, beliefs and knowledge about medical cannabis among nursing students.

METHODS

Cross-sectional study in two universities: Rutgers University (RU) in New Jersey and Ben Gurion University of the Negev (BGU) in Israel. In addition to demographic data, the survey instrument included questions about attitudes, beliefs, knowledge, and training.

RESULTS

Overall, 387 students participated, mainly females (87.8%). The vast majority from both sub-groups stated they would recommend cannabis to their patients if allowed to do so (91.2%), and were in agreement that medical cannabis is associated with significant benefits for physical (93.5%) and mental (87.8%) health. Compared to the BGU sub-group, more students from RU stated that they feel prepared to answer patient questions about medical cannabis (19.5% vs. 33.5%, respectively; χ² = 9.74, p < 0.01). While the majority of respondents stated they have not received any formal education related to medical cannabis, they expressed endorsement for such training and education.

CONCLUSIONS

In light of the expanding number of patients who use medical cannabis, this study highlights the importance of incorporating medical cannabis education for nurses in academic and clinical curricula.

Attitudes and beliefs about medical cannabis among social work students: Cross-national comparison

OBJECTIVES

Worldwide, considerable attention is being given to cannabis use for medical conditions. In the current study, we sought to assess attitudes and beliefs about MC among social work students from the US and Israel.

METHODS

We sought to assess attitudes and beliefs about MC among a sample of 417 social work students (230 from the US and 187 from Israel) who voluntarily participated in an anonymous online survey. Chi-square tests were used to analyze differences between groups.

RESULTS

Most of the US and Israeli participants (84.3 % and 96.7 %, respectively) reported no formal education about MC; and, they would recommend MC for their clients. Participants who reported any cannabis use, compared to non-users, were more likely to believe MC could benefit physical or mental health and less inclined to believe use of the substance poses serious physical or mental health risks. Secular, compared to religious students, believed it has more benefits for physical and/or mental health.

CONCLUSIONS

Our findings evidence a considerable dearth of formal evidence-based education about cannabis for medical conditions in two university-based cohorts, despite beliefs in MC as useful for physical and mental health conditions. Efforts to develop curricula and training programs for social work students are needed since they will be among key professionals addressing client needs from health care and counseling perspectives.

Toward medical cannabis education in Israel

OBJECTIVES

To assess knowledge, attitudes and beliefs regarding medical cannabis among Israeli medical, nursing, social work and other health related students as well as to outline the formation of an instrument for standardized data collection on these topics.

METHODS

An invitation to participate with a link for the online survey was sent to all students pursuing a degree in medicine, nursing, social work, and other health disciplines in the Ben Gurion University of the Negev, Israel. The instrument included 32 items that measured knowledge, attitudes and beliefs regarding medical cannabis. In addition, demographic data were collected and participants were asked about the frequency of medical or recreational cannabis use.

RESULTS

Among the 763 participants, 596 were females (78 %), and the mean age was 25.8 years. While the reported personal use of medical cannabis was minimal (1.9 %), cannabis use for recreational purposes was relatively common (54.0 %). The vast majority believed that medical cannabis holds significant health benefits but expressed concerns regarding potential risks of cannabis use. Additionally, the vast majority of students felt unprepared to answer patients' questions about medical cannabis and expressed a desire to receive more training. Several significant differences between the different academic disciplines were observed.

CONCLUSIONS

In light of current regulatory and scientific developments, it is apparent that students of health professions will need a greater level of understanding of medical cannabis than previous generations of students. This study emphasizes the ample need for more knowledge and formal education to students of health and related professions.

Foreign Medical Students in Eastern Europe: Knowledge, Attitudes and Beliefs about Medical Cannabis for Pain Management

OBJECTIVE

To assess the knowledge, attitudes, and beliefs of foreign students toward the use of medical cannabis (MC) for pain management.

METHODS

This study uses data collected from 549 foreign students from India (n = 289) and Middle Eastern countries mostly from Egypt, Iran, Syria, and Jordan (n = 260) studying medicine in Russia and Belarus. Data collected from Russian and Belarusian origin medical students (n = 796) were used for comparison purposes. Pearson's chi-squared and t-test were used to analyze the data.

RESULTS

Foreign students' country of origin and gender statuses do not tend to be correlated with medical student responses toward medical cannabis use. Students from Russia and Belarus who identified as secular, compared to those who were religious, reported more positive attitudes toward medical cannabis and policy change.

CONCLUSIONS

This study is the first to examine the attitudes, knowledge, and beliefs toward medical cannabis among foreign students from India and Middle Eastern countries studying in Russia and Belarus, two countries who oppose its recreational and medicine use. Indian and Middle Eastern students, as a group, tend to be more supportive of MC than their Russian and Belarusian counterparts. These results may be linked to cultural and historical reasons. This study provides useful information for possible medical and allied health curriculum and education purposes.

Association of rs4680 COMT, rs6280 DRD3, and rs7322347 5HT2A With Clinical Features of Youth-Onset Schizophrenia

We investigated the associations of rs4680 COMT, rs6280 DRD3, and rs7322347 5HT2A with youth-onset schizophrenia in the Russian population in a case-control study, and the role of the genotype in the severity of clinical features. The association between rs7322347 and schizophrenia (p = 0.0001) is described for the first time. Furthermore, we found a link with rs6280 and rs4680 in females (p = 0.001 and p = 0.02 respectively) and with rs7322347 in males (p = 0.002). Clinical symptoms were assessed on three scales: the Clinician-Rated Dimensions of Psychosis Symptom Severity scale, Positive and Negative Syndrome Scale, and Frontal Assessment Battery. Gender differences in clinical features are of particular interest. In our study we found gender differences in the severity of clinical features-higher scores for delusions (Positive and Negative Syndrome Scale and Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition) in males and higher scores for depression, delusions, somatic concern, motor retardation, poor attention were found in females.

Validation of the Russian Version of the Positive and Negative Syndrome Scale (PANSS-Ru) and Normative Data

Objective: The Positive and Negative Syndrome Scale (PANSS) is widely used to assess psychopathology. The Russian version (PANSSRu) has not been validated, and normative data for the Russian-speaking population currently do not exist. The aims of this study were to 1) complete linguistic validation for the PANSSRu, 2) perform psychometric validation of the Russian translation, and 3) present norms for the Russian and Belarusian population. Design: Validation and norms of the PANSS-Ru occurred in three stages-Stage I: linguistic validation; Stage II: psychometric validation of the translated version for 40 inpatients with schizophrenia and other psychoses; and Stage III: norms for 533 census-matched inpatients, outpatients, and healthy control subjects. Results: The rating criteria (PANSS-Ru), interview guide (SCI-PANSSRu), informant questionnaire (IQ-PANSS-Ru), and scoring form (PANSS QuikScore-Ru) were linguistically and psychometrically validated. Convergent validity between the PANSS subscale scores and total score with the Clinical Global Impressions-Severity Scale (CGI-S) were moderate (r=0.41-0.60) to high (r=0.61-0.80). Cronbach's α (0.88) verified internal consistency, and intra-class correlation coefficient (ICC) comparisons had a range of 0.83. Percentile normative data collected from 533 subjects are presented. Conclusion: This is the largest population-based study providing linguistic and psychometric validation of the PANSS-Ru. Normative data can provide clinicians with a benchmark of psychopathology and inform the efficacy of treatment interventions.

Religiosity as a Substance Use Protective Factor Among Female College Students

Research exists about religiosity as a substance use protective factor. However, there is little attention of this issue regarding Israeli female college students. Undergraduate religious and secular students were studied. Religious students reported lower last month tobacco, alcohol, cannabis and non-medical prescription drug use. Secular females who smoked, missed class because of party habits and reported easy access to cannabis had a higher probability of binge drinking. This study contributes to knowledge about religiosity and college student substance use, and it provides useful information for their mental health and well-being.

Russian Federation university student alcohol use: Smolensk City-a case example

Alcohol use that causes damage to health and adverse events is a significant public health concern. However, there is a dearth of information about alcohol use among Russian Federation university students. This cross sectional study of 626 students examined their background characteristics, alcohol use, heavy drinking and related problem behavior. Males were more inclined to use alcohol and drink heavily than females; however, no other gender related behavior differences were found. Regression analysis showed heavy drinking more prevalent among students who worked, lived on campus, missed class because of party habits, smoked cigarettes, mixed alcohol and energy drinks, and drank more because of stress. Study findings contribute to usable information for promoting university student health and well-being including academic success through policy and prevention practices as well as for examining the issue elsewhere for comparison and generalization purposes.

Characterization of polycrystalline lead oxide for application in direct conversion X-ray detectors

While polycrystalline lead oxide (poly-PbO) is known to be one of the most promising photoconductors for utilization in X-ray detectors, its major performance parameters such as charge yield and mobility-lifetime product (μτ) are still not well established and require further investigation. Combining the conventional X-ray induced photocurrent and pulse height spectroscopy techniques we examine the X-ray photogeneration and recombination processes in poly-PbO. The measurements indicate that the amount of energy required to release a single electron hole pair W_± (inverse of charge yield) strongly depends on applied electric field and at 10 V/μm reaches ~20 eV/ehp. Fitting the measured pulse height spectra with the Hecht formula provided μτ for holes and electrons to be 4.1 × 10⁻⁸ cm²/V and 10⁻⁹ cm²/V, respectively. Obtained μτ values combined with recently reported mobility values of charge carriers in PbO suggest a new direction towards improvement of PbO technology by incorporation of Frisch grid or X-ray transistor architectures.

Suicidal Ideation Among Heroin-Abusing Mothers in Methadone Maintenance Treatment

BACKGROUND

There is a dearth of information about mothers in methadone maintenance treatment (MMT), their parental stress, and suicidal ideation.

AIM

To evaluate parenting stress and suicidal ideation among heroin-dependent mothers in MMT.

METHOD

The study was conducted at an MMT center. Inclusion criteria were mothers with at least one child between 6-12 years of age. Mothers (n = 41) were interviewed about their background characteristics, drug use, parenting stress, and suicide ideation.

RESULTS

The mothers' median age was 44 (27-63 years), 35% were single, 20% married or with a partner, 45% separated or divorced, 83% were Jewish, and about one-third completed elementary school only. Among the study participants, 52% reported ever thinking about suicide, 28% reported past-year ideation, and 15% indicated they were likely to complete suicide someday. Mothers who have used heroin and cannabis reported high levels of parenting stress. Mothers with high parenting stress levels were more likely to report suicidal ideation. Country of origin status did not differentiate those interviewed.

CONCLUSION

This study provides insight into a hard-to-reach population of mothers needing treatment, parental skills training, and mental stress reduction. Further research is needed to generalize the findings for treatment, education, and training purposes.