Displaying publications 1 - 20 of 660 in total

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  1. Zyoud SH, Awang R, Syed Sulaiman SA, Al-jabi SW
    Hum Exp Toxicol, 2010 Sep;29(9):773-8.
    PMID: 20144962 DOI: 10.1177/0960327110361759
    Hypokalemia is not an isolated disease but an associated finding in a number of different diseases. It is also a commonly neglected condition among patients with acute acetaminophen overdose.
    Matched MeSH terms: Anxiety Disorders/blood; Anxiety Disorders/complications
  2. Zuraida, A.S.
    MyJurnal
    Previous studies have shown that the experience of infertility is linked with psychological responses such as depression, anxiety, guilt, social isolation, and decreased self-esteem in both men and women. The prevalence of depression among infertile women ranges from 8% to 54%. Treating gynecologists and healthcare professionals seldom recognized the psychosocial distress in women undergoing fertility treatment. Therefore this paper reviewed the bio-psychosocial response towards infertility among women with infertility.
    Matched MeSH terms: Anxiety
  3. Zuraida Ahmad Sabki, Zainal NZ
    MyJurnal
    Objective: The study aimed to explore the prevalence of burnout among the junior doctors and to examine the psychometric properties of abbreviated Maslach Burnout Inventory (aMBI). Methods: A cross-sectional study was conducted using aMBI self-reported questionnaire and Hospital Anxiety Depression Scale which was carried out on a sample of 117 junior doctors working in a teaching hospital in Malaysia. Results: Exploratory factor analysis of aMBI revealed a three-factor structure labelled as emotional exhaustion, depersonalization and personal accomplishment with Crohnbach’s alpha of 0.85, 0.59 and 0.64 respectively. The total variance was 67%. Prevalence of burnout was found at 26.5%. Emotional exhaustion and depersonalization were positively correlated with depression and anxiety. Shorter duration of residence (less than six months) and being posted to Trauma & Emergency unit were associated with higher mean score of burnout. Conclusion: This study provides the knowledge of level of burnout among the junior doctors and the abbreviated Maslach Burnout Inventory has a satisfied psychometirc properties for screening burnout among junior doctors in Malaysia.
    Matched MeSH terms: Anxiety; Anxiety Disorders
  4. Zulfarina MS, Syarifah-Noratiqah SB, Nazrun SA, Sharif R, Naina-Mohamed I
    Clin Psychopharmacol Neurosci, 2019 May 31;17(2):145-154.
    PMID: 30905115 DOI: 10.9758/cpn.2019.17.2.145
    Panic disorder (PD) being one of the most intensively investigated anxiety disorders is considered a heterogeneous psychiatric disease which has difficulties with early diagnosis. The disorder is recurrent and usually associated with low remission rates and high rates of relapse which may exacerbated social and quality of life, causes unnecessary cost and increased risk for complication and suicide. Current pharmacotherapy for PD are available but these drugs have slow therapeutic onset, several side effects and most patients do not fully respond to these standard pharmacological treatments. Ongoing investigations indicate the need for new and promising agents for the treatment of PD. This article will cover the importance of immediate and proper treatment, the gap in the current management of PD with special emphasis on pharmacotherapy, and evidence regarding the novel anti-panic drugs including the drugs in developments such as metabotropic glutamate (mGlu 2/3) agonist and levetiracetam. Preliminary results suggest the anti-panic properties and the efficacy of duloxetine, reboxetine, mirtazapine, nefazodone, risperidone and inositol as a monotherapy drug. Apart for their effectiveness, the aforementioned compounds were generally well tolerated compared to the standard available pharmacotherapy drugs, indicating their potential therapeutic usefulness for ambivalent and hypervigilance patient. Further strong clinical trials will provide an ample support to these novel compounds as an alternative monotherapy for PD treatment-resistant patient.
    Matched MeSH terms: Anxiety
  5. Zubaidah, J.O., Hejar, A.R., Lim, Y.W., Chin, K.T., Muhd Aizuddin, Z., Mud Hazeman, Z.
    MyJurnal
    Cancer pain is a complex experience and is one of the most common and distressing symptom of breast cancer which affects patients’ functioning in daily activities, their quality of life (QOL), and mood. Yet, there is a great lack of data on breast cancer and pain in Malaysia.
    Methods: A cross-sectional study using the Breast Cancer Patient Version of Quality of Life (QOL) Instrument (translated into Malay) and Depression Anxiety and Stress Scale (DASS) were conducted on 87 female breast cancer patients to investigate the impact of pain interference level on their quality of life and depressive level.
    Results: The patients were divided into 4 groups based on their rating of how pain and aches have been a problem to them (i.e not a problem [n=18 (20.7%)], mild[n=29 (33.3%)], moderate [n=18 (20.7%)] and severe [n=22(25.3%). Pain and aches ware reported to be the most severe interference problems in QOL physical domain by patients (mean=5.8, SD=2.8), followed by fatigue (mean=6.0, SD=3.1) and sleep changes (mean=6.2, SD=3.5). Patients who reported that pain and aches had severely affected them showed significantly lower score on many aspects of quality of life (Fs > 5, p < 0.005; p < 0.0001) and patients reported pain was not a problem at all demonstrated highest score on all aspects of QOL. Patients with most severe pain interference level showed highest depressive score [F (3, 84) =3, p < 0.05].
    Conclusion: The study underscores the impact of pain interference on patients’ quality of life and depressive level. The pain assessment deserves significant attention and therefore a comprehensive biopsychosocial assessment of pain to rule out any related underlying issues is warranted in the management of breast cancer to ensure appropriate intervention given to the patients.
    Matched MeSH terms: Anxiety
  6. Zhu H
    Ecol Evol, 2017 12;7(23):10398-10408.
    PMID: 29238563 DOI: 10.1002/ece3.3561
    The tropical climate in China exists in southeastern Xizang (Tibet), southwestern to southeastern Yunnan, southwestern Guangxi, southern Guangdon, southern Taiwan, and Hainan, and these southern Chinese areas contain tropical floras. I checked and synonymized native seed plants from these tropical areas in China and recognized 12,844 species of seed plants included in 2,181 genera and 227 families. In the tropical flora of southern China, the families are mainly distributed in tropical areas and extend into temperate zones and contribute to the majority of the taxa present. The genera with tropical distributions also make up the most of the total flora. In terms of geographical elements, the genera with tropical Asian distribution constitute the highest proportion, which implies tropical Asian or Indo-Malaysia affinity. Floristic composition and geographical elements are conspicuous from region to region due to different geological history and ecological environments, although floristic similarities from these regions are more than 90% and 64% at the family and generic levels, respectively, but lower than 50% at specific level. These differences in the regional floras could be influenced by historical events associated with the uplift of the Himalayas, such as the southeastward extrusion of the Indochina geoblock, clockwise rotation and southeastward movement of Lanping-Simao geoblock, and southeastward movement of Hainan Island. The similarity coefficients between the flora of southern China and those of Indochina countries are more than 96% and 80% at family and generic levels, indicating their close floristic affinity and inclusion in the same biogeographically floristic unit.
    Matched MeSH terms: Anxiety Disorders
  7. Zhou B, Mui LG, Li J, Yang Y, Hu J
    Nurse Educ Pract, 2024 Feb;75:103874.
    PMID: 38244336 DOI: 10.1016/j.nepr.2024.103874
    AIM: To delineate the prevalence of smartphone addiction among nursing students. Further, to identify associated harms and underlying risk factors based on established theoretical models.

    BACKGROUND: Smartphones have become indispensable tools for students. However, excessive use can lead to smartphone addiction, causing physiological, psychological and social harm. Nursing students represent a unique population whose smartphone use may differ from other disciplines due to clinical training demands.

    METHODS: A scoping review was conducted following the Arksey and O'Malley framework. Seven databases were systematically searched from inception to August 2023. Inclusion criteria encompassed original research on smartphone addiction, harms and risks among nursing students. Data were extracted and thematically synthesized.

    RESULTS: Studies (n=39) met inclusion criteria, representing 15 countries. Rates of smartphone addiction among nursing students ranged from 19% to 72%, averaging 40-50%. Incorporated into Engel's biopsychosocial models, the harm is emphasized across individual inclinations, emotional aspects, cognitive processes and executive functions. Physiological harms include sleep disruption, vision concerns,other physiological concerns. psychologically, addiction correlated with increased anxiety and depression,decline in self-esteem, learning and attention and other psychological concerns. socially, it encompasses harms such as interpersonal relationships challenges, career development and decline in social abilities. The I-PACE model identifies various risk factors for smartphone addiction among nursing students, including personal factors such as interpersonal relationship anxiety and perceived academic pressure, affective factors like high stress and learning burnout, cognitive factors such as the need for online social interaction and low perception of social support, as well as executive factors like extended usage duration, poor self-control and usage before sleep.

    CONCLUSION: Smartphone addiction among nursing students presents tangible harms. A proposed theoretical model integrating established frameworks provides avenues to better comprehend addiction genesis and potential intervention strategies. Given addiction's multi-factorial nature, future research investigating harm mitigation through optimizing predisposing, precipitating and perpetuating factors is warranted.

    Matched MeSH terms: Anxiety/epidemiology
  8. Zhang J, Huen JMY, Lew B, Chistopolskaya K, Talib MA, Siau CS, et al.
    J Affect Disord, 2020 06 15;271:279-285.
    PMID: 32479327 DOI: 10.1016/j.jad.2020.03.076
    BACKGROUND: The etiological factors of mood disorders and psychopathologies are understudied. In this paper, we explored whether social psychological strains are related to depression, anxiety, and stress in non-clinical populations.

    METHODS: 6,305 college students (39.3% men; 60.7% women) from six Chinese provincial-level jurisdictions completed a paper-and-pencil survey with Psychological Strain Scales (PSS-40) and Depression, Anxiety, and Stress Scales-21 (DASS-21), both validated in Chinese populations.

    RESULTS: Both PSS-40 and DASS-21 have high internal consistency reliabilities, and are highly correlated with each other. Hence, Chinese college students with greater psychological strains (value, aspiration, deprivation, or coping) have greater depression, anxiety, and stress. These results still held after controlling for relevant socio-demographic variables in the multiple regression models.

    LIMITATIONS: This was a cross-sectional study, and the sample only included several provinces in mainland China, not a representative sample of all of them.

    CONCLUSIONS: Mood disorders and psychopathologies are linked to suicidal thoughts and behaviors. The results of this study extend the Strain Theory of Suicide from explaining the risk factors of suicidality to mood disorders and psychopathologies. Hence, these findings can inform prevention measures among college students, and possibly the general population.

    Matched MeSH terms: Anxiety; Anxiety Disorders
  9. Zaydi AI, Lew LC, Hor YY, Jaafar MH, Chuah LO, Yap KP, et al.
    Benef Microbes, 2020 Dec 02;11(8):753-766.
    PMID: 33245015 DOI: 10.3920/BM2019.0200
    Aging processes affect the brain in many ways, ranging from cellular to functional levels which lead to cognitive decline and increased oxidative stress. The aim of this study was to investigate the potentials of Lactobacillus plantarum DR7 on brain health including cognitive and memory functions during aging and the impacts of high fat diet during a 12-week period. Male Sprague-Dawley rats were separated into six groups: (1) young animals on normal diet (ND, (2) young animals on a high fat diet (HFD), (3) aged animals on ND, (4) aged animals on HFD, (5) aged animals on HFD and L. plantarum DR7 (109 cfu/day) and (6) aged animals receiving HFD and lovastatin. To induce ageing, all rats in group 3 to 6 were injected sub-cutaneously at 600 mg/kg/day of D-galactose daily. The administration of DR7 has reduced anxiety accompanied by enhanced memory during behavioural assessments in aged-HFD rats (P<0.05). Hippocampal concentration of all three pro-inflammatory cytokines were increased during aging but reduced upon administration of both statin and DR7. Expressions of hippocampal neurotransmitters and apoptosis genes showed reduced expressions of indoleamine dioxygenase and P53 accompanied by increased expression of TPH1 in aged- HFD rats administered with DR7, indicating potential effects of DR7 along the pathways of serotonin and oxidative senescence. This study provided an insight into potentials of L. plantarum DR7 as a prospective dietary strategy to improve cognitive functions during aging. This study provided an insight into potentials of L. plantarum DR7 as a prospective dietary strategy to improve cognitive functions during aging.
    Matched MeSH terms: Anxiety/drug therapy
  10. Zamri EN, Hoe VCW, Moy FM
    Ind Health, 2020 Jun 09;58(3):254-264.
    PMID: 31666460 DOI: 10.2486/indhealth.2019-0106
    Low back pain (LBP) is prevalent among workers both in developed and developing countries. School teachers represent a high proportion of the working population in Malaysia. However, there is a lack of longitudinal study on predictors and course of LBP among teachers. Therefore, this study aimed to determine the predictors and course of LBP among secondary school teachers. Longitudinal data of 701 teachers in Selangor, Malaysia were collected from May 2015 to October 2016. Associations between predictors and LBP were analysed using logistic regression and reported as odds ratio (OR) and 95% confidence interval (CI). At 12-month of follow-up, 44% (95%CI: 40.6%, 48.0%) of the participants reported having LBP. In the regression model that included all risk factors, only LBP at baseline (OR 10.43, 95%CI: 6.19, 17.58) was associated with LBP at 12-month follow-up. When LBP at baseline was removed from the model, anxiety symptom (OR 2.51, 95%CI: 1.19, 5.30) and lifting heavy weights (OR 4.16, 95%CI: 1.40, 12.30) were found to be significantly associated with LBP at 12-month follow-up. In conclusion, issues on anxiety and lifting heavy weights should be addressed to reduce the occurrence of LBP despite the presence of health condition itself (LBP at baseline).
    Matched MeSH terms: Anxiety
  11. Zakaria N, Baharudin A, Razali R
    ASEAN Journal of Psychiatry, 2009;10(2):89-99.
    MyJurnal
    Objective: To study the effect of depressive disorders, severity of depression and, sociodemographic factors on drug compliance among hypertensive patients at primary care clinics. Methods: A total of 201 hypertensive patients on treatment for at least 3 months who attended the HUKM Primary Care Clinic and Salak Polyclinic were selected for this study. Patients were screened for depressive disorders using the Hospital Anxiety Depression Scale (HADS) and those who scored 8 and more were further interviewed to establish a diagnosis using the Mini International Neuropsychiatric Interview (MINI). Patients who were diagnosed to have depressive disorders were further rated for the severity of the illness by using Hamilton Rating Scale for Depression (HAMD). Drug compliance was assessed during a 2 month follow up using the pill counting method (ratio 0.8 – 1.2 considered as compliant). Results: The prevalence of non-compliance among hypertensive patients was 38.3%. There was no association between the diagnosis of depressive disorders and drug compliance. Among the 12 patients who had depressive disorders, severity of depression as rated by HAMD, showed significant association with drug compliance (Mann-Whitney test z = -2.083, p
    Matched MeSH terms: Anxiety
  12. Zakaria H, Hussain I, Zulkifli NS, Ibrahim N, Noriza NJ, Wong M, et al.
    PLoS One, 2023;18(7):e0283862.
    PMID: 37506072 DOI: 10.1371/journal.pone.0283862
    BACKGROUND AND AIMS: There is growing evidence on the contribution of psychological factors to internet addiction; yet it remains inconsistent and deserves further exploration. The aim of this study was to determine the relationship between the psychological symptoms (Attention Deficit Hyperactivity Disorder (ADHD) symptoms, stress, depression, anxiety and loneliness) and internet addiction (IA) among the university students in Malaysia.

    MATERIALS AND METHODS: A total of 480 students from different faculties in a Malaysian public university participated in this study. They were selected by simple random sampling method. They completed self-administered questionnaires including the Malay Version of Internet Addiction Test (MVIAT)) to measure internet addiction and Adult Self-Report Scale (ASRS) Symptom Checklist, Depression Anxiety Stress Scales (DASS) and UCLA Loneliness Scale (Version 3) to assess for ADHD symptoms, depression, anxiety, stress, and loneliness respectively.

    RESULTS: The prevalence of IA among university students was 33.33% (n = 160). The respondents' mean age was 21.01 ± 1.29 years old and they were predominantly females (73.1%) and Malays (59.4%). Binary logistic regression showed that gender (p = 0.002; OR = 0.463, CI = 0.284-0.754), ADHD inattention (p = 0.003; OR = 2.063, CI = 1.273-3.345), ADHD hyperactivity (p<0.0001; OR = 2.427, CI = 1.495-3.939), stress (p = 0.048; OR = 1.795, CI = 1.004-3.210) and loneliness (p = 0.022; OR = 1.741, CI = 1.084-2.794) were significantly associated with IA.

    CONCLUSION: A third of university students had IA. In addition, we found that those who were at risk of IA were males, with ADHD symptoms of inattention and hyperactivity, who reported stress and loneliness. Preventive strategy to curb internet addiction and its negative sequelae may consider these factors in its development and implementation.

    Matched MeSH terms: Anxiety/diagnosis
  13. Zainudeen ZT, Abd Hamid IJ, Azizuddin MNA, Abu Bakar FF, Sany S, Zolkepli IA, et al.
    BMJ Open, 2021 08 11;11(8):e050523.
    PMID: 34380732 DOI: 10.1136/bmjopen-2021-050523
    OBJECTIVE: To investigate the psychosocial impact of COVID-19 on Malaysian families.

    DESIGN: A cross-sectional study performed using an anonymous online questionnaire distributed through social media, email and the Department of Social Welfare.

    SETTING: Malaysian families were invited to answer the questionnaires. The sampling was performed between 12 May 2020 and 9 June 2020.

    INTERVENTION: The psychological impact was assessed using the Impact of Event Scale-Revised (IES-R) and Children's Revised Impact of Event Scale (CRIES). The mental health status was assessed using the Depression, Anxiety and Stress Scale (DASS) 21.

    MAIN OUTCOME MEASURE: (1) Psychological impact on Malaysian families. (2) Prevalence of mental health status of Malaysian families during COVID-19 pandemic.

    RESULT: A total of 409 Malaysian families have responded (409 parents and 348 children), 154 respondents (38%) reported high psychological impact (score 14) for psychological construct and 189 respondents (46%) reported high psychological impact (score 6) for behavioural construct. A significantly higher proportion of respondents with not permanent employment status of the family lead reported high psychological impact. The prevalence of anxiety reported from family respondents was 23%. Forty-five children answered the DASS-21 questionnaire; 28.5% reported anxiety, 31.4% reported depression and 13.3% reported stress. The job security status of the family lead was found to be the predictive factor for the mean total IES-R score (psychological construct) and ethnicity for mean total CRIES-8 and CRIES-13.

    CONCLUSION: Rates of depression and anxiety during the COVID-19 pandemic were high. Findings suggest that urgent measures to ensure job security among Malaysian families are important to reduce the impact of the COVID-19 pandemic on psychosocial and mental health outcomes.

    Matched MeSH terms: Anxiety/epidemiology
  14. Zainol NA, Hashim HA
    Psychol Health Med, 2015;20(4):495-502.
    PMID: 25196807 DOI: 10.1080/13548506.2014.955034
    We examined the moderating effects of exercise habit strength on the relationship between emotional distress and short-term memory in primary school children.
    Matched MeSH terms: Anxiety/psychology*
  15. Zaini S, Guan NC, Sulaiman AH, Zainal NZ, Huri HZ, Shamsudin SH
    Curr Drug Targets, 2018;19(12):1431-1455.
    PMID: 29484993 DOI: 10.2174/1389450119666180226125026
    Cancer patients are commonly associated with various physical and psychological symptoms. In palliative setting, the aims are to relieve those symptoms, improve quality of life, and increase medication adherence among cancer patients. Antidepressants are generally accepted for the treatment of depression among patients with or without cancer. Some other potential benefits of the antidepressants have been reported in cancer patients.

    OBJECTIVE: This study aims to review the use of antidepressants for physical and psychological symptoms in cancer patients.

    RESULTS: Our findings showed the mixed result of positive and negative findings in various symptoms associated with cancer patients. These studies are categorised according to the hierarchy of evidence from high to low level, namely randomised controlled trials, cohort studies, case-control studies, case series, case reports, as well as other type of publications. The majority of antidepressants used in cancer patients seem to be beneficial for the treatment of depression, anxiety, hot flashes and other symptoms such as sexual dysfunction, fatigue, nicotine dependence, vasomotor symptoms, executive functions, sleep problems, pruritus, as well as for hypochondriasis. While fluoxetine was found to be associated with the reduction of antiemetic property in ondansetron, mirtazapine was identified to be a good alternative in treating nausea and cachexia among cancer patients.

    CONCLUSION: More research studies with adequate statistical power are warranted to validate the use of antidepressants among cancer patients in treating these physical and psychological symptoms.

    Matched MeSH terms: Anxiety/drug therapy
  16. Zainal NZ, Booth S, Huppert FA
    Psychooncology, 2013 Jul;22(7):1457-65.
    PMID: 22961994 DOI: 10.1002/pon.3171
    This study aims to investigate the evidence of the efficacy of mindfulness-based stress reduction (MBSR) in improving stress, depression and anxiety in breast cancer patients.
    Matched MeSH terms: Anxiety/psychology; Anxiety/therapy*
  17. Zainal NZ, Shuib N, Bustam AZ, Sabki ZA, Guan NC
    Asian Pac J Cancer Prev, 2013;14(1):463-8.
    PMID: 23534774 DOI: 10.7314/apjcp.2013.14.1.463
    BACKGROUND: Body image dissatisfaction among breast cancer survivors has been associated with psychological stress resultant from breast cancer and resultant surgery. This study aimed to examine the psychometric properties of the Malay Version of the Breast-Impact of Treatment Scale (MVBITS) and to investigate the associations of retained factors with the Hospital Anxiety and Depression Scale (HADS) and the Rosenberg Self-Esteem Scale (RSES).

    MATERIALS AND METHODS: The MVBITS was 'forward-backward' translated from English to Malay and then administered to 70 female breast cancer patients who came to the Oncology Clinic of University Malaya Medical Centre, Kuala Lumpur, Malaysia to undergo chemotherapy. Principal component analysis (PCA) with varimax rotation was performed to explore the factor structure of the MVBITS. Associations of retained factors were estimated with reference to Spearman correlation coefficients.

    RESULTS: The internal consistency reliability of MVBITS was good (Cronbach's alpha 0.945) and showed temporal stability over a 3-week period. Principal component analysis suggested two factors termed as 'Intrusion' and 'Avoidance' domains. These factors explained 70.3% of the variance. Factor 1 comprised the effects of breast cancer treatment on the emotion and thought, while Factor 2 informed attempts to limit exposure of the body to self or others. The Factor 1 of MVBITS was positively correlated with total, depression and anxiety sub-scores of HADS. Factor 2 was positively correlated with total and anxiety sub-scores of HADS. MVBITS was also positively correlated with the RSES scores.

    CONCLUSIONS: The results showed that the Malay Version of Breast-Impact of Treatment Scale possesses satisfactory psychometric properties suggesting that this instrument is appropriate for assessment of body change stress among female breast cancer patients in Malaysia.
    Matched MeSH terms: Anxiety/etiology; Anxiety/psychology
  18. Zaid SM, Hutagalung FD, Bin Abd Hamid HS, Taresh SM
    PLoS One, 2021;16(8):e0256088.
    PMID: 34388181 DOI: 10.1371/journal.pone.0256088
    BACKGROUNDS: Accurate measurement and suitable strategies facilitate people regulate their sadness in an effective manner. Regulating or mitigating negative emotions, particularly sadness, is crucial mainly because constant negative emotions may lead to psychological disorders, such as depression and anxiety. This paper presents an overview of sadness regulation strategies and related measurement.

    METHOD: Upon adhering to five-step scoping review, this study combed through articles that looked into sadness regulation retrieved from eight databases.

    RESULTS: As a result of reviewing 40 selected articles, 110 strategies were identified to regulate emotions, particularly sadness. Some of the most commonly reported strategies include expressive suppression, cognitive reappraisal, distraction, seeking social or emotional support, and rumination. The four types of measures emerged from the review are self-reported, informant report (parents or peers), open-ended questions, and emotion regulation instructions. Notably, most studies had tested psychometric properties using Cronbach's alpha alone, while only a handful had assessed validity (construct and factorial validity) and reliability (Cronbach's alpha or test-retest) based on responses captured from questionnaire survey.

    CONCLUSION: Several sadness regulation strategies appeared to vary based on gender, age, and use of strategy. Despite the general measurement of emotion regulation, only one measure was developed to measure sadness regulation exclusively for children. Future studies may develop a comprehensive battery of measures to assess sadness regulation using multi-component method.

    Matched MeSH terms: Anxiety Disorders/etiology; Anxiety Disorders/psychology*
  19. Zahedi H, Djalalinia S, Sadeghi O, Zare Garizi F, Asayesh H, Payab M, et al.
    Nutr Neurosci, 2020 Dec 14.
    PMID: 33314992 DOI: 10.1080/1028415X.2020.1853411
    OBJECTIVE: Several studies have been conducted on the relationship between breakfast consumption and mental health with conflicting results. Therefore, the present systematic review and meta-analysis was undertaken to summarize evidences on the association between skipping breakfast and mental health.

    METHODS: We searched online databases for all related papers through the comprehensive international data bases of Institute of PubMed/ MEDLINE, ISI/WOS and Scopus up to December 2019, using relevant keywords. Overall, 14 studies were included in this systematic review and meta-analysis.

    RESULTS: The total sample size of all selected studies was 399,550 individuals with age range of 6 to ≥65 years old. We found a significant positive association between skipping breakfast and Odds Ratio (OR) of depression (pooled OR: 1.39; 95% CI: 1.34-1.44), stress (pooled OR: 1.23; 95% CI: 1.04-1.43) and psychological distress (pooled OR: 1.55; 95% CI: 1.47-1.62). In contrast, there was no significant association between skipping breakfast and anxiety in all age cohort (pooled OR: 1.31; 95% CI: 0.97-1.65). However, subgroup analysis based on age stratification showed that there was a significant positive association between skipping breakfast and anxiety in adolescences (pooled OR: 1.51; 95% CI: 1.25-1.77).

    CONCLUSION: In conclusion, skipping breakfast was positively associated with odds of depression, stress and psychological distress in all age groups and anxiety in adolescence, underlining impact of breakfast on mental health.

    Matched MeSH terms: Anxiety; Anxiety Disorders
  20. Yusoff NH, Suhaimi FW, Vadivelu RK, Hassan Z, Rümler A, Rotter A, et al.
    Addict Biol, 2016 Jan;21(1):98-110.
    PMID: 25262913 DOI: 10.1111/adb.12185
    Mitragynine is the major psychoactive alkaloid of the plant kratom/ketum. Kratom is widely used in Southeast Asia as a recreational drug, and increasingly appears as a pure compound or a component of 'herbal high' preparations in the Western world. While mitragynine/kratom may have analgesic, muscle relaxant and anti-inflammatory effects, its addictive properties and effects on cognitive performance are unknown. We isolated mitragynine from the plant and performed a thorough investigation of its behavioural effects in rats and mice. Here we describe an addictive profile and cognitive impairments of acute and chronic mitragynine administration, which closely resembles that of morphine. Acute mitragynine has complex effects on locomotor activity. Repeated administration induces locomotor sensitization, anxiolysis and conditioned place preference, enhances expression of dopamine transporter- and dopamine receptor-regulating factor mRNA in the mesencephalon. While there was no increase in spontaneous locomotor activity during withdrawal, animals showed hypersensitivity towards small challenging doses for up to 14 days. Severe somatic withdrawal signs developed after 12 hours, and increased level of anxiety became evident after 24 hours of withdrawal. Acute mitragynine independently impaired passive avoidance learning, memory consolidation and retrieval, possibly mediated by a disruption of cortical oscillatory activity, including the suppression of low-frequency rhythms (delta and theta) in the electrocorticogram. Chronic mitragynine administration led to impaired passive avoidance and object recognition learning. Altogether, these findings provide evidence for an addiction potential with cognitive impairments for mitragynine, which suggest its classification as a harmful drug.
    Matched MeSH terms: Anti-Anxiety Agents/pharmacology
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