scholarly journals Cannabis Use, Schizotypy and Kamin Blocking Performance

2021 ◽  
Vol 12 ◽  
Author(s):  
Christopher Dawes ◽  
Andrea Bickerdike ◽  
Cian O'Neill ◽  
Sarah Carneiro Pereira ◽  
John L. Waddington ◽  
...  

Cannabis use has been associated with increased risk for a first episode of psychosis and inappropriate assignment of salience to extraneous stimuli has been proposed as a mechanism underlying this association. Psychosis-prone (especially schizotypal) personality traits are associated with deficits in associative learning tasks that measure salience allocation. The aim of this study was to examine the relationship between history of cannabis use and Kamin blocking (KB), a form of selective associative learning, in a non-clinical sample. Additionally, KB was examined in relation to self-reported schizotypy and aberrant salience scale profiles. A cross-sectional study was conducted in 307 healthy participants with no previous psychiatric or neurological history. Participants were recruited and tested using the Testable Minds behavioural testing platform. KB was calculated using Oades' “mouse in the house task”, performance of which is disrupted in schizophrenia patients. Schizotypy was measured using the Schizotypal Personality Questionnaire (SPQ), and the Aberrant Salience Inventory (ASI) was used to assess self-reported unusual or inappropriate salience. The modified Cannabis Experience Questionnaire (CEQm) was used to collect detailed history of use of cannabis and other recreational drugs. Regression models and Bayesian t-tests or ANOVA (or non-parametric equivalents) examined differences in KB based on lifetime or current cannabis use (frequent use during previous year), as well as frequency of use among those who had previously used cannabis. Neither lifetime nor current cannabis use was associated with any significant change in total or trial-specific KB scores. Current cannabis use was associated with higher Disorganised SPQ dimension scores and higher total and sub-scale values for the ASI. A modest positive association was observed between total KB score and Disorganised SPQ dimension scores, but no relationships were found between KB and other SPQ measures. Higher scores on “Senses Sharpening” ASI sub-scale predicted decreased KB score only in participants who have not engaged in recent cannabis use. These results are discussed in the context of our understanding of the effects of long-term cannabis exposure on salience attribution, as well as inconsistencies in the literature with respect to both the relationship between KB and schizotypy and the measurement of KB associative learning phenomena.

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Melanie Blair Thies ◽  
Pamela DeRosse ◽  
Deepak K Sarpal ◽  
Miklos Argyelan ◽  
Christina L Fales ◽  
...  

Abstract Antipsychotic (AP) medications are the mainstay for the treatment of schizophrenia spectrum disorders (SSD), but their efficacy is unpredictable and widely variable. Substantial efforts have been made to identify prognostic biomarkers that can be used to guide optimal prescription strategies for individual patients. Striatal regions involved in salience and reward processing are disrupted as a result of both SSD and cannabis use, and research demonstrates that striatal circuitry may be integral to response to AP drugs. In the present study, we used functional magnetic resonance imaging (fMRI) to investigate the relationship between a history of cannabis use disorder (CUD) and a striatal connectivity index (SCI), a previously developed neural biomarker for AP treatment response in SSD. Patients were part of a 12-week randomized, double-blind controlled treatment study of AP drugs. A sample of 48 first-episode SSD patients with no more than 2 weeks of lifetime exposure to AP medications, underwent a resting-state fMRI scan pretreatment. Treatment response was defined a priori as a binary (response/nonresponse) variable, and a SCI was calculated in each patient. We examined whether there was an interaction between lifetime CUD history and the SCI in relation to treatment response. We found that CUD history moderated the relationship between SCI and treatment response, such that it had little predictive value in SSD patients with a CUD history. In sum, our findings highlight that biomarker development can be critically impacted by patient behaviors that influence neurobiology, such as a history of CUD.


2008 ◽  
Vol 38 (9) ◽  
pp. 1267-1276 ◽  
Author(s):  
E. Barkus ◽  
S. Lewis

BackgroundThe relationship between cannabis use and psychosis is still a matter for debate. Accounting for the individual differences in subjective experiences to recreational cannabis use in the general population may hold some clues to the aetiological relationship between cannabis and psychotic symptoms. We hypothesized that schizotypy would account for the individual differences in subjective experiences after cannabis use but not in patterns of use.MethodIn a sample of 532 young people who had used cannabis at least once, we examined the relationship between the Cannabis Experiences Questionnaire (CEQ) and the Schizotypal Personality Questionnaire (SPQ). Additionally, we examined the psychometric properties of the CEQ.ResultsWe replicated our previously reported findings that schizotypy was associated with increased psychosis-like experiences and after-effects, but also found that high-scoring schizotypes reported more pleasurable experiences when smoking cannabis. Using new subscales derived from principal components analysis (PCA), we found that the psychosis-like items were most related to varying rates of schizotypy both during the immediate use of cannabis and in the after-effects of cannabis use. High-scoring schizotypes who used cannabis experienced more psychosis-like symptoms during and after use.ConclusionsOur results suggest that cannabis use may reveal an underlying vulnerability to psychosis in those with high schizotypal traits.


Author(s):  
Menglin Jiang ◽  
Dandan Gong ◽  
Yu Fan

AbstractElevated serum uric acid (SUA) levels may increase the risk of prehypertension. However, the findings from these studies remain conflicting. The objective of this study was to determine the relationship between SUA levels and risk of prehypertension by conducting a meta-analysis. We conducted a comprehensive literature search of PubMed, Embase, China National Knowledge Infrastructure, VIP, and the Wangfang database without language restrictions through May 2015. Observational studies assessing the relationship between SUA levels and prevalence of prehypertension were included. Pooled adjust odds ratio (OR) and corresponding 95% confidence intervals (CI) of prehypertension were calculated for the highest vs. lowest SUA levels. Prehypertension was defined as systolic blood pressure (BP) ranging from 120 to 139 mmHg or diastolic BP ranging from 80 to 89 mmHg. Eight cross-sectional studies with a total of 21,832 prehypertensive individuals were included. Meta-analysis showed that elevated SUA levels were associated with increased risk of prehypertension (OR: 1.84; 95% CI: 1.42–2.38) comparing the highest vs. lowest level of SUA levels. Subgroup analyses showed that elevated SUA levels significantly increased the risk of prehypertension among men (OR: 1.60; 95% CI: 1.12–2.21) and women (OR: 1.59; 95% CI: 1.17–2.16). Elevated SUA levels are positively associated with the risk of prehypertension in the general population. However, more well-designed longitudinal studies are needed before a definitive conclusion can be drawn due to the cross-sectional studies included are susceptible to bias.


2021 ◽  
Vol 17 ◽  
Author(s):  
Mansoureh Refaei ◽  
Soodabeh Aghababaei ◽  
Mansoureh Yazdkhasti ◽  
Farideh Kazemi ◽  
Fatemeh Farahmandpour

Background: Several risk factors have been identified for postpartum hemorrhage, one of which being the duration of the third stage of labour. This stage refers to the interval between the expulsion of the fetus to the expulsion of the placenta. Some bleeding occurs in this stage due to the separation of the placenta Objective: This study aimed to identify the factors associated with the length of the third stage of labour. Methods: In this cross-sectional study, 300 women hospitalized for vaginal birth were selected via convenience sampling. The study data were collected using a researcher-made questionnaire. Then, the data were analyzed using univariate and multivariate linear regression analyses. Results: The mean (SD) age of the participants was 26.41 (6.26) years. Investigation of the relationship between the study variables and the time of placental separation indicated that a minute increase in the length of membranes rupture caused a 0.003minute decrease in the time of placental separation. However, this time increased by 2.75, 6.68, and 2.86 minutes in the individuals without the history of abortion, those with the history of stillbirth, and those who had not received hyoscine, respectively. The results of multivariate analysis indicated that suffering from preeclampsia or hypertension, history of stillbirth, not receiving hyoscine, and not receiving misoprostol increased the length of the third stage by 4.40, 8.55, 2.38, and 6.04 minutes, respectively. Conclusion: Suffering from preeclampsia and having the history of stillbirth increased and using hyoscine and misoprostol decreased the length of the third stage of labour. However, no significant relationship was found between the length of the third stage of labour and mother’s age, gestational age, parity, mother’s body mass index, mother’s chronic disorders, history of manual placenta removal, length of the first and second stages, membranes rupture, induction, amount of oxytocin after delivery, and infant’s weight and gender.


Author(s):  
Dyah Widiastuti ◽  
Dwi Priyanto

Leptospirosis is associated with occupations which exposed workers to contaminated environments. The risk of leptospirosis exposure in the market as a gathering place for many people needs to be assessed, to obtain the basis for decision making to anticipate leptospirosis transmission. This study aimed to determine the relationship between market environmental conditions including market sanitation conditions, the level of rat density and the presence of leptospira-positive rats  toward the history of leptospirosis exposure among market workers (traders and janitors). A cross sectional study conducted in 35 markets in Banjarnegara and 175 market workers randomly selected. Blood samples analysed using ELISA against 40 Kda pathogenic Leptospira protein. Rat trapping  conducted in each market for two days with 100 traps. The caught mice examined with Polymerase Chain Reaction (PCR) to detect the presence of Leptospira bacteria in their kidneys. Leptospirosis exposure was spread in 17 markets in Banjarnegara. The PCR examination showed that the pathogenic Leptospira infected rats were spread in four markets in Banjarnegara. Chi square test showed that the hygene condition in market area was significantly associated with the leptospirosis exposure. Markets workers (traders and janitors) were at risk for leptospirosis proved by high seroprevalence of leptospirosis in this study.


2021 ◽  
Vol 10 (1) ◽  
pp. 72
Author(s):  
Melvanda Gisela Putri ◽  
Roedi Irawan ◽  
Indri Safitri Mukono

ABSTRAKLatar Belakang: Stunting merupakan suatu istilah yang menggambarkan kondisi pertumbuhan tinggi badan kurang berdasarkan umur disesuaikan dengan Z-Score (<-2SD). Stunting pada balita dapat diakibatkan oleh kurangnya asupan zat gizi yang diperlukan bagi pertumbuhan anak. Penelitian dilakukan untuk mengetahui hubungan suplementasi vitamin A, pemberian imunisasi dan riwayat penyakit infeksi yakni diare dan ISPA terhadap kejadian stunting.Tujuan: Mengetahui hubungan suplementasi vitamin A, pemberian imunisasi, dan penyakit infeksi terhadap stunting pada anak usia 24-59 bulan di Puskesmas Mulyorejo, Surabaya.Metode: Penelitian ini merupakan penelitian analitik observasional dengan metode cross sectional. Besar sampel adalah 107 anak usia 24-59 bulan di Puskesmas Mulyorejo, Surabaya. terdiri dari 25 anak kelompok stunting dan 82 anak kelompok non- stunting. Cara pengambilan data melalui data sekunder posyandu dan wawancara langsung orang tua anak dengan pengisian kuisioner. Data dianalisis menggunakan uji Chi-Square, Fisher Exact, dan Mann Whitney.Hasil: Penelitian ini menunjukkan hasil terdapat hubungan suplementasi vitamin A dengan stunting (p=0,000), tidak ada hubungan antara pemberian imunisasi terhadap stunting (p=0,332). Dalam riwayat penyakit infeksi, frekuensi diare dan ISPA ditemukan tidak ada hubungan dengan  stunting (p=0,053 dan p=0,082), begitu pula pada lama diare dan lama ISPA tidak berhubungan dengan stunting (p= 0,614 dan p=0,918).Kesimpulan: Suplementasi vitamin A berhubungan signifikan dengan stunting yang diamati pada anak usia 24-59 bulan di Puskesmas Mulyorejo, Surabaya. Kata kunci: kejadian stunting, vitamin A, imunisasi, penyakit infeksi, anak usia 24-59 bulanABSTRACTBackground: Stunting is a term that describes condition of lower height-for-age Z-Score (<-2SD). Stunting among children can be caused by a lack of nutrients needed for children's growth. This study was conducted to determine the relationship between vitamin A supplementation, immunization and a history of infectious diseases, namely diarrhea and ARI to the incidence of stunting.Objectives: To determine the relationship between vitamin A supplementation, immunization, and history of infectious disease with the incidence of stunting in children aged 24-59 months at Puskesmas Mulyorejo, Surabaya.Methods: This study was an observational analytic study with cross sectional method. The sample size was 107 children aged 24-59 months at Puskesmas Mulyorejo, Surabaya. This study consisted of 25 children in the stunting group and 82 children in the non-stunting group. The method of data collection was through secondary data from posyandu and direct interviews with parents by filling out questionnaires. Data were analyzed using the chi-square test, fisher exact, and Mann Whitney.Results: The results of this study indicated that there was a relationship between vitamin A supplementation and with stunting (p = 0.000). There was no relationship between immunization and stunting (p = 0.332). In the history of infectious diseases, the frequency of diarrhea and ARI was found to have no relationship with stunting (p = 0.053 and p = 0.082), as well as the duration of diarrhea and duration of ARI there was no association with the stunting (p = 0.614 and p = 0.918).Conclusion: Vitamin A supplementation has significant relationship with stunting in children aged 24-59 months at Puskesmas Mulyorejo, Surabaya.


2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Udi Wahyudi ◽  
Bram Burnamajaya

Bullying merupakan perilaku negatif yang dilakukan secara berulang-ulang oleh seseorang atau sekelompok orang yang bersifat menyerang karena adanya ketidakseimbangan kekuatan antara pihak yang terlibat.Tindakan bullying dapat berdampak buruk bagi korban maupun pelakunya di masa depannya. Dampak tersebut meliputi kesepian, pencapaian akademik yang buruk, kesulitan penyesuaian (adaptasi), meningkatnya risiko penggunaan zat, keterlibatan dalam tindakan kriminal dan kerentanan gangguan mental emosional seperti cemas, insomnia, penyalahgunaan zat, depresi, mempunyai self-esteem rendah, kesulitan interpersonal, gangguan konsep diri, dan depresi (ketidakberdayaan). Tujuan penelitian ini adalah untuk mengetahui hubungan antara konsep diri dan ketidakberdayaan dengan risiko bunuh diri pada remaja yang mengalami bullying di SMA Negeri 7 Kota Bogor. Penelitian ini merupakan penelitian kuantitatif dengan menggunakan metode cross-sectional study dengan bentuk pendekatan rancangan correlation study. Sampel dalam penelitian ini berjumlah 183 orang didapat dari teknik randomsampling. Hasil penelitian menunjukkan bahwa berdasarkan hasil uji hubungan dengan menggunakan Chi-Square antara konsep diri dengan ketidakberdayaan didapatkan nilai ρ (0,000) lebih kecil daripada nilai α (0,05), sedangkan uji hubungan antara konsep diri dengan risiko bunuh diri didapatkan nilai ρ (0,013) lebih kecil daripada nilai α (0,05). Dengan demikian bahwa ada hubungan antara konsep diri dan ketidakberdayaan dengan risiko bunuh diri pada remaja yang mengalami bullying di SMA Negeri 7 Kota Bogor. Kata kunci: bullying, konsep diri, ketidakberdayaan, risisko bunuh diri SELF-CONCEPT AND INEQUALITY CONNECTED WITH RISK OF SELF-SUFFICIENT IN ADOLESCENTS WHO HAVE BULLYING ABSTRACTBullying is a negative behavior that is carried out repeatedly by a person or group of people who are attacking because of an imbalance of power between the parties involved. Bullying actions can have a negative impact on victims and perpetrators in the future. These impacts include loneliness, poor academic achievement, adaptation difficulties, increased risk of substance use, involvement in criminal acts and susceptibility to mental emotional disorders such as anxiety, insomnia, substance abuse, depression, low self-esteem, interpersonal difficulties, disturbances self concept, and depression (helplessness). The purpose of this study was to determine the relationship between self-concept and powerlessness with the risk of suicide in adolescents who experienced bullying in SMA Negeri 7 Kota Bogor. This research is a quantitative study using a cross-sectional study method with a correlation study design approach. The sample in this study amounted to 183 people obtained from random sampling techniques. The results showed that based on the results of the relationship test using Chi-Square between self-concept and powerlessness, the value of ρ (0,000) was smaller than the value of α (0.05), while the test of the relationship between self-concept and risk of suicide obtained a value of ρ (0.013 ) is smaller than the value of α (0.05). Thus that there is a relationship between self-concept and powerlessness with the risk of suicide in adolescents who experience bullying in SMA Negeri 7 Kota Bogor. Keywords: bullying, self-concept, helplessness, suicide risk


2021 ◽  
Vol 1 (3) ◽  
pp. 247-251
Author(s):  
Elsa Rizki Lilian ◽  
Andi Siswandi ◽  
Anggunan Anggunan

ABSTRACT: THE CORRELATIONS OF AGE AND HYPERTENSION WITH THE OCCURRENCE OF BPH IN THE SURGICAL WARD AT RSUD DR.H.ABDUL MOELOEK IN 2020Introduction: Lower Urinary Tractus Symptoms (LUTS) is a problem that is experienced by men around the world and one that often occurs is Benign prostate hyperplasia (BPH). BPH is a histological disorder characterized by the proliferation of prostate cells. It is estimated that 50% of men show BPH histopathology at the age of 60 years old and an increase of 90% at the age of 80 years old. Hypertension is also known to have a role in increasing prostate volume, in a cohort study it was found that hypertension resulted in an increased risk of 1.5 times to cause LUTS/BPH.Objective: To determine the relationship between age and hypertension on the incidence of BPH in Dr. H. Abdul Moeloek in 2020.Methods: This study is quantitative research, an observative analytic study design with a cross-sectional approach was carried out at RSUD Dr. H. Abdul Moeloek which was taken on October 16, 2020. The population was all patients in the Surgical Ward with total sampling. Data collection was obtained from secondary data from medical records. Data analysis was performed Univariate analysis (frequency distribution) and bivariate analysis with chi-square.Results: Respondents with BPH aged >50 years old were 32 respondents (97%) and respondents with BPH and hypertension were 20 respondents (60.6%). The results of the bivariate analysis using chi-square showed a significant relationship between BPH and age p value=0.000 (P<0.05) and the relationship between BPH and hypertension with p value=0.000 (p<0.05).Conclusion: There is a significant relationship between BPH with age and hypertension with the occurrence of BPH in the Surgical polyclinic at RSUD Dr.H.Abdul Moeloek in 2020. Keywords: BPH, Age, Hypertension  INTISARI: HUBUNGAN USIA DAN HIPERTENSI TERHADAP KEJADIAN BPH DI RSUD Dr.H.ABDUL MOELOEK Pendahuluan: Lower Urinary Tractus Symptoms (LUTS) adalah masalah yang banyak dialami oleh laki-laki di seluruh dunia dan salah satu yang sering terjadi adalah Benigna Prostat Hyperplasia (BPH). BPH adalah kelainan histologis yang khas di tandai dengan proliferasi sel-sel prostat. Diperkirakan 50% laki-laki menunjukan histopatologi BPH pada umur 60 tahun dan meningkat 90% pada umur 80 tahun  Hipertensi juga diketahui memiliki peranan dalam peningkatan volume prostat yakni pada suatu penelitian cohort diketahui adanya hipertensi mengakibatkan peningkatan resiko sebanyak 1,5 kali untuk menimbulkan gejala LUTS/BPH.Tujuan: Untuk mengetahui adanya hubungan usia dan hipertensi terhadap kejadian BPH di RSUD Dr. H. Abdul Moeloek Tahun 2020Metode: Jenis penelitian kuantitatif, rancangan penelitian analitik observatif dengan pendekatan cross sectional telah dilakukan di RSUD Dr.H.Abdul Moeloek Provinsi Lampung yang berlangsung pada 16 Oktober 2020. Populasi adalah seluruh pasien di Poli Bedah dengan pengambilan sampel secara total sampling. Pengumpulan data diperoleh dari data sekunder yang diperoleh dari rekam medis. Analisis data secara univariat (distribusi frekuensi) dan uji bivariat mengunakan chi squareHasil: Responden dengan BPH yang berusia >50 tahun sebanyak 32 responden (97%) dan responden dengan BPH dengan hipertensi sebanyak 20 responden (60,6%). Hasil Uji bivariat menggunakan chi square menunjukkan adanya hubungan signifikan antara BPH dengan usia diperoleh nilai p=0,000 (P<0,05) dan hubungan BPH dengan hipertensi nilai p=0,000 (p<0,05).Kesimpulan: Terdapat hubungan signifikan antara BPH dengan usia dan terdapat hubungan sgnifikan antara BPH dengan hipertensi di poli klinik bedah RSUD Dr.H.Abdul Moeloek tahun 2020.Kata kunci: BPH, Usia, Hipertensi


2018 ◽  
Vol 25 (02) ◽  
pp. 237-241
Author(s):  
Shabana Rafiq ◽  
Razia Bibi ◽  
Samina Ashraf

Objectives: To determine the frequency of ovarian malignancy in women ofreproductive age presenting with ovarian mass and to determine frequency of factors leadingto ovarian malignancy. Study Design: Cross sectional study. Setting: Department of Obstetrics& Gynaecology, Lady Wallington Hospital, Lahore. Period with Dates: From 05.11.11 to26.06.12. Results: The result of our study reveals majority of the patients between 21-30 yearsi.e. 45.88%(n=39), common age was 24.21+3.76 years, 43.53%(n=37) were nulliparous (inmajority), while frequency of ovarian malignancy in women of reproductive age presenting withovarian mass was recorded in 14.11%(n=12) while frequency of factors leading to ovarianmalignancy was 91.67%(n=11) patients were nulliparous while family history of ovarianmalignancy was in 8.33%(n=1) patients. Conclusions: The frequency of ovarian malignancy ishigher among reproductive age females with increased risk of nulliparity.


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