Uniwersytet Medyczny w Białymstoku. Publikacje.
  • Ostatnia zmiana 07.03.2024 przez Klinika Psychiatrii

    Publikacje

    • Kułak-Bejda A, Shpakou A, Khvoryk N, Hutsikava L, Aydin Avci I, Eren DC, Kourkouta L, Tsaloglidou A, Koukourikos K, Waszkiewicz N. Impact of pregnancy/childbirth on dispositional optimism in the context of risk of depression, mental health status and satisfaction with life. Front Psychiatry. 2024 Jan 8;14:1271033.  

    • Marecki R, Kałuska J, Kolanek A, Hakało D, Waszkiewicz N. Zuranolone - synthetic neurosteroid in treatment of mental disorders: narrative review. Front Psychiatry. 2023 Dec 5;14:1298359.  

    • Samaryn E, Galińska-Skok B, Nobis A, Zalewski D, Maciejczyk M, Gudowska-Sawczuk M, Mroczko B, Zalewska A, Waszkiewicz N. The Effect of Antidepressant Treatment on Neurocognitive Functions, Redox and Inflammatory Parameters in the Context of COVID-19. J Clin Med. 2023 Nov 12;12(22):7049.  

    • Więdłocha M, Zborowska N, Marcinowicz P, Dębowska W, Dębowska M, Zalewska A, Maciejczyk M, Waszkiewicz N, Szulc A. Oxidative Stress Biomarkers among Schizophrenia Inpatients. Brain Sci. 2023 Mar 14;13(3):490.

    • Juchnowicz D, Dzikowski M, Rog J, Waszkiewicz N, Karakuła KH, Zalewska A, Maciejczyk M, Karakula-Juchnowicz H. The usefulness of a complete blood count in the prediction of the first episode of schizophrenia diagnosis and its relationship with oxidative stress. PLoS One. 2023 Oct 12;18(10):e0292756.  

    • Łapińska L, Krentowska A, Kondraciuk M, Chlabicz M, Waszkiewicz N, Kamiński K, Kowalska I. The association between plasma N-terminal pro-brain natriuretic peptide concentration and metabolic disturbances in women with depressive symptoms. Psychoneuroendocrinology. 2023 Dec;158:106409.  

    • Waszkiewicz N. The Immunoseasonal Theory of Psychiatric Disorders. J Clin Med. 2023 Jul 11;12(14):4615.  

    • Galińska-Skok B, Waszkiewicz N. Markers of Schizophrenia-A Critical Narrative Update. J Clin Med. 2022 Jul 7;11(14):3964.

    • Kułak-Bejda A, Bejda G, Kułak W, Guzowski A, Fiłon J, Łukaszuk C, Cybulski M, Waszkiewicz N, Krajewska-Kułak E. Impact of the Pandemic on Selected Aspects of Health-Promoting Attitudes in 2020-2021: A Cross-Sectional Study. Front Public Health. 2022 Jul 7;10:916972.

    • Kapytau D, Kapytau A, Khrushch I, Kudin L, Waszkiewicz N. The Effect of the Non-compressed Oxygen Therapy and Hyperbaric Oxygenation in Combination With Standardized Drug Therapy on the Blood Acid-Base State Biomarkers in Alcohol Withdrawal Syndrome, an Experimental Study. Front Psychiatry. 2022 Apr 18;13:819154.

    • Waszkiewicz N. Ordering Knowledge in the Markers of Psychiatric/Mental Disorders. J Clin Med. 2022 Jan 6;11(2):284.

    • Zalewska A, Klimiuk A, Zięba S, Wnorowska O, Rusak M, Waszkiewicz N, Szarmach I, Dzierżanowski K, Maciejczyk M. Salivary gland dysfunction and salivary redox imbalance in patients with Alzheimer's disease. Sci Rep. 2021 Dec 13;11(1):23904.

    • Juchnowicz D, Dzikowski M, Rog J, Waszkiewicz N, Zalewska A, Maciejczyk M, Karakuła-Juchnowicz H. Oxidative Stress Biomarkers as a Predictor of Stage Illness and Clinical Course of Schizophrenia. Front Psychiatry. 2021 Nov 15;12:728986.

    • Śniadach J, Szymkowiak S, Osip P, Waszkiewicz N. Increased Depression and Anxiety Disorders during the COVID-19 Pandemic in Children and Adolescents: A Literature Review. Life (Basel). 2021 Nov 5;11(11):1188.

    • Chlabicz M, Dubatówka M, Jamiołkowski J, Sowa P, Łapińska M, Raczkowski A, Łaguna W, Moniuszko-Malinowska AM, Waszkiewicz N, Kowalska I, Kamiński KA. Subjective well-being in non-obese individuals depends strongly on body composition. Sci Rep. 2021 Nov 8;11(1):21797.

    • Łoś K, Kulikowska J, Waszkiewicz N. First-Time Psychotic Symptoms in a Patient After COVID-19 Infection-A Case Report. Front Psychiatry. 2021 Oct 15;12:726059.

    • Bejda G, Kułak-Bejda A, Waszkiewicz N, Krajewska-Kułak E. Type D Personality, Stress Level, Life Satisfaction, and Alcohol Dependence in Older Men. Front Psychiatry. 2021 Oct 11;12:712508.

    • Dąbrowska E, Galińska-Skok B, Waszkiewicz N. Depressive and Neurocognitive Disorders in the Context of the Inflammatory Background of COVID-19. Life (Basel). 2021 Oct 8;11(10):1056.

    • Wilczyńska K, Maciejczyk M, Zalewska A, Waszkiewicz N. Serum Amyloid Biomarkers, Tau Protein and YKL-40 Utility in Detection, Differential Diagnosing, and Monitoring of Dementia. Front Psychiatry. 2021 Sep 13;12:725511.

    • Lorkiewicz P, Waszkiewicz N. Biomarkers of Post-COVID Depression. J Clin Med. 2021 Sep 14;10(18):4142.

    • Chmielewski J, Łoś K, Waszkiewicz N, Łuczyński W. Mindfulness Is Related to the Situational Awareness of Medical Students Confronted with Life-Threatening Emergency Situations. J Clin Med. 2021 May 2;10(9):1955.

    • Łoś K, Waszkiewicz N. Biological Markers in Anxiety Disorders. J Clin Med. 2021 Apr 17;10(8):1744.

    • Chojnowska S, Ptaszyńska-Sarosiek I, Kępka A, Knaś M, Waszkiewicz N. Salivary Biomarkers of Stress, Anxiety and Depression. J Clin Med. 2021 Feb 1;10(3):517.

    • Kułak-Bejda A, Bejda G, Lech M, Waszkiewicz N. Are Lipids Possible Markers of Suicide Behaviors? J Clin Med. 2021 Jan 18;10(2):333.

    • Waszkiewicz N. Large Projects Investigating the Microbiota-Gut-Brain Axis and Fecal Transplant Studies Are Needed for Treating Mental Illnesses. Neuropsychobiology. 2021;80(3):276-278.

    • Waszkiewicz N. Possible special needs for mental online support in female and male health care workers during the COVID-19. J Med Virol. 2021 Jan;93(1):174-175.

    • Waszkiewicz N. E-cigarette or vaping product-use-associated lung injury partly due to the new-psychoactive-substances. J Am Coll Emerg Physicians Open. 2020 Oct 29;1(6):1776.

    • Waszkiewicz N, Pawłowicz K, Okuniewska N, Kwiatkowski M, Zalewski D, Wilczyńska K, Szulc A, Galińska-Skok B, Konarzewska B, Maciejczyk M, Zalewska A Salivary Carbohydrate-Deficient Transferrin in Alcohol- and Nicotine-Dependent Males.  J Clin Med. 2020 Dec 15;9(12):4054.

    • Nobis A, Zalewski D, Waszkiewicz N. Peripheral Markers of Depression. J Clin Med. 2020 Nov 24;9(12):3793.

    • Kepka A, Ochocinska A, Borzym-Kluczyk M, Skorupa E, Stasiewicz-Jarocka B, Chojnowska S, Waszkiewicz N. Preventive Role of L-Carnitine and Balanced Diet in Alzheimer's Disease. Nutrients. 2020 Jul 3;12(7):1987.

    • Kulak-Bejda A, Bejda G, Waszkiewicz N. Safety and efficacy of naltrexone for weight loss in adult patients - a systematic review. Arch Med Sci. 2020 Sep 10;17(4):940-953.

    • Kułak-Bejda A, Waszkiewicz N, Galińska-Skok B, Zajkowska A, Kułakowska A, Kochanowicz J. Primarily depression manifestation of Wilson's disease-Case report. Clin Neurol Neurosurg. 2020; 190: 105651.

    • Rozenek EB, Górska M, Wilczyńska K, Waszkiewicz N. In search of optimal psychoactivation: stimulants as cognitive performance enhancers. Arh Hig Rada Toksikol. 2019 Sep 1;70(3):150-159.

    • Waszkiewicz N, Kratz EM, Chojnowska S, Zalewska A, Zwierz K, Szulc A, Szajda SD, Nestsiarovich A, Kapitau A, Kępka A, Ostrowska L, Ferens-Sieczkowska M. Long-term changes of salivary exoglycosidases and their applicability as chronic alcohol-drinking and dependence markers. World J Biol Psychiatry 2019; 20(1): 64-75.
    • Obyedkov I, Skuhareuskaya M, Skugarevsky O, Obyedkov V, Buslauski P, Skuhareuskaya T, Waszkiewicz N. Saccadic eye movements in different dimensions of schizophrenia and in clinical high-risk state for psychosis. BMC Psychiatry. 2019; 19(1): 110.
    • Kępka A, Zwierz P, Chojnowska S, Ochocińska A, Skorupa E, Szczepański M, Szajda SD, Waszkiewicz N. Relation of plasma carnitine and aminotransferases to alcohol dose and time of dependence. Alcohol. 2019; 81: 62-69.
    • Galińska-Skok B, Szulc A, Małus A, Konarzewska B, Cwalina U, Tarasów E, Waszkiewicz N. Proton magnetic resonance spectroscopy changes in a longitudinal schizophrenia study: a pilot study in eleven patients. Neuropsychiatr Dis Treat. 2019; 15: 839-847.
    • Klimiuk A, Maciejczyk M, Choromańska M, Fejfer K, Waszkiewicz N, Zalewska A. Salivary Redox Biomarkers in Different Stages of Dementia Severity. J Clin Med. 2019; 8(6): 840.
    • Kułak-Bejda A, Waszkiewicz N, Bejda G, Zalewska A, Maciejczyk M. Diagnostic Value of Salivary Markers in Neuropsychiatric Disorders. Dis Markers. 2019; 4360612.

    • Zalewska A, Waszkiewicz N, López-Pintor RM. The Use of Saliva in the Diagnosis of Oral and Systemic Diseases. Dis Markers. 2019; 9149503.
    • Rudzki L, Ostrowska L, Pawlak D, Małus A, Pawlak K, Waszkiewicz N, Szulc A. Probiotic Lactobacillus Plantarum 299v decreases kynurenine concentration and improves cognitive functions in patients with major depression: A double-blind, randomized, placebo controlled study. Psychoneuroendocrinology. 2019; 100: 213-222.
    • Waszkiewicz N, Olański W, Chojnowska S, Kołakowska U, Plewa K, Mielech W, Bagniuk-Plewa A, Wasilewska A, Szulc A, Szajda SD, Zwierz K. Serum Exoglycosidases in Children and Adolescents With Harmful Alcohol Use. J Addict Med. 2018; 12(4): 329-335.

    • Wilczyńska K, Simonienko K, Konarzewska B, Szajda SD, Waszkiewicz N. Morphological changes of the brain in mood disorders. Psychiatr Pol. 2018; 52(5): 797-805.
    • Galińska-Skok B, Małus A, Konarzewska B, Rogowska-Zach A, Milewski R, Tarasów E, Szulc A, Waszkiewicz N. Choline Compounds of the Frontal Lobe and Temporal Glutamatergic System in Bipolar and Schizophrenia Proton Magnetic Resonance Spectroscopy Study. Dis Markers. 2018; 3654894.

    • Szulc A, Wiedlocha M, Waszkiewicz N, Galińska-Skok B, Marcinowicz P, Gierus J, Mosiolek A. Proton magnetic resonance spectroscopy changes after lithium treatment. Systematic review. Psychiatry Res Neuroimaging. 2018; 273: 1-8.

    • Chojnowska S, Cabaj-Wiater I, Mikulska-Baran A, Zalewska-Szajda B, Waszkiewicz N. Positive Correlation of Serum N-Acetyl-β-hexosaminidase with Markers of Atherosclerosis in Diabetes Type 2 Patients with Mild Symptoms of Depression and Anxiety. Dis Markers. 2018; 1760592.
    • Simonienko K, Wygnał N, Cwalina U, Kwiatkowski M, Szulc A, Waszkiewicz N. The reasons for use of cannabinoids and stimulants in patients with schizophrenia. Psychiatr Pol. 2018; 52(2): 261-273.
    • Waszkiewicz N, Galińska-Skok B, Nestsiarovich A, Kułak-Bejda A, Wilczyńska K, Simonienko K, Kwiatkowski M, Konarzewska B. Neurobiological Effects of Binge Drinking Help in Its Detection and Differential Diagnosis from Alcohol Dependence. Dis Markers. 2018; 5623683.
    • Kandratsenka H, Nestsiarovich A, Goloenko I, Danilenko N, Makarevich A, Obyedkov V, Davydenko O, Waszkiewicz N. Association of MIR137 With Symptom Severity and Cognitive Functioning in Belarusian Schizophrenia Patients. Front Psychiatry. 2018; 9: 295.
    • Waszkiewicz N, Galińska-Skok B, Zalewska A, Szajda SD, Zwierz K, Więdłocha M, Szulc A. Salivary immune proteins monitoring can help detection of binge and chronic alcohol drinkers: Preliminary findings. Drug Alcohol Depend. 2018; 183: 13-18.
    • Więdłocha M, Marcinowicz P, Krupa R, Janoska-Jaździk M, Janus M, Dębowska W, Mosiołek A, Waszkiewicz N, Szulc A. Effect of antidepressant treatment on peripheral inflammation markers - A meta-analysis. Prog Neuropsychopharmacol Biol Psychiatry. 2018; 80: 217-226
    • Nestsiarovich A, Obyedkov V, Kandratsenka H, Siniauskaya M, Goloenko I, Waszkiewicz N. Disorganization at the stage of schizophrenia clinical outcome: Clinical-biological study. Eur Psychiatry 2017; 42, 44-48.
    • Rudzki L, Pawlak D, Pawlak K, Waszkiewicz N, Małus A, Konarzewska B, Gałęcka M, Bartnicka A, Ostrowska L, Szulc A. Immune suppression of IgG response against dairy proteins in major depression. BMC Psychiatry 2017; 24;268.
    • Kułak-Bejda A, Bejda G, Waszkiewicz N. Antidepressants for irritable bowel syndrome-A systematic review. Pharmacol Rep. 2017; 69(6): 1366-1379.
    • Choromańska M, Klimiuk A, Kostecka-Sochoń P, Wilczyńska K, Kwiatkowski M, Okuniewska N, Waszkiewicz N, Zalewska A, Maciejczyk M. Antioxidant Defence, Oxidative Stress and Oxidative Damage in Saliva, Plasma and Erythrocytes of Dementia Patients. Can Salivary AGE be a Marker of Dementia? Int J Mol Sci. 2017; 18(10): pii: E2205.
    • Łazarczyk JB, Urban B, Konarzewska B, Szulc A, Bakunowicz-Łazarczyk A, Żmudzka E, Kowzan U, Waszkiewicz N, Juszczyk-Zajkowska K. The differences in level of trait anxiety among girls and boys aged 13-17 years with myopia and emmetropia. BMC Ophthalmology 2016; 16, 201, 7.
    • Wincewicz D, Juchniewicz A, Waszkiewicz N, Braszko JJ. Angiotensin II type 1 receptor blockade by telmisartan prevents stress-induced impairment of momory via HPA axis deactivation and up-regulation of brain-derived neurotrophic factor gene expression. Pharmacology Biochemistry and Behavior 2016; 148, 108-118.
    • Waszkiewicz N, Szajda SD, Szulc A, Zwierz K. Binge drinking and tuberculosis prevention. Tuberculosis (Edinb). 2015;95(2): 89-90.
    • Waszkiewicz N, Chojnowska S, Zalewska A, Zwierz K, Szulc A, Szajda SD. Salivary exoglycosidases as markers of alcohol dependence. Alcohol and Alcoholism 2014; 49, 409-416.
    • Waszkiewicz N, Jelski W, Zalewska A, Szulc A, Szmitkowski M, Zwierz K, Szajda SD. Salivary alcohol dehydrogenase in non-smoking and smoking alcohol-dependent persons. Alcohol 2014; 48, 611-616.
    • Kratz EM, Waszkiewicz N, Kałuża A, Szajda SD, Zalewska-Szajda B, Szulc A, Zwierz K, Ferens-Sieczkowska M. Glycosylation changes at the salivary glycoproteins of alcohol-dependent patients: A pilot study. Alcohol and Alcoholism 2014; 49, 23-30.
    • Konarzewska B, Galińska-Skok B, Waszkiewicz N, Łazarczyk-Kirejczyk J, Małus A, Simonienko K, Szulc A. Association between serum testosterone levels, body mass index (BMI) and insulin in male patients with schizophrenia treated with atypical antipsychotics - olanzapine or risperidone. Neuroendocrinology Letters 2014; 35, 50-57.
    • Waszkiewicz N, Chojnowska S, Zalewska A, Zwierz K, Szulc A, Szajda SD. Salivary hexosaminidase in smoking alcoholics with bad periodontal and dental states. Drug and Alcohol Dependence 2013; 129, 33-40.
    • Simonienko K, Waszkiewicz N, Szulc A. Roślinne środki odurzające - aktualnie obowiązująca lista w Polsce. Psychiatria Polska 2013; 47, 499-510.
    • Waszkiewicz N, Szulc A, Zwierz K. Binge drinking-induced subtle myocardial injury. Alcohol Clin Exp Res. 2013; 37(8): 1261-3.
    • Szulc A, Galińska-Skok B, Waszkiewicz N, Bibułowicz D, Konarzewska B, Tarasów E. Proton magnetic resonance spectroscopy changes after antipsychotic treatment. Current Medicinal Chemistry 2013; 20, 414-427.
    • Konarzewska B, Waszkiewicz N, Galińska B, Szulc A. Fasting insulin serum levels and psychopathology profiles in male schizophrenic inpatiens treated with olanzapine or risperidone. Neuroendocrinology Letters 2013; 34, 322-328.
    • Szulc A, Galińska-Skok B, Tarasów E, Konarzewska B, Waszkiewicz N, Hykiel R, Walecki J. Clinical and cognitive correlates of the proton magnetic resonance spectroscopy measures in chronic schizophremia. Medical Science Monitor 2012; 18, 6, s. CR390-398.
    • Waszkiewicz N, Szajda SD, Zalewska A, Szulc A, Kępka A, Minarowska A, Wojewódzka-Żelezniakowicz M, Konarzewska B, Chojnowska S, Ładny JR, Zwierz K. Alcohol abuse and glycoconjugate metabolism. Folia Histochemica et Cytobiologica 2012; 50, 1, s. 1-11.
    • Waszkiewicz N, Zalewska-Szajda B, Szajda SD, Simonienko K, Zalewska A, Szulc A, Ładny JR, Zwierz K. Sibutramine-induced mania as the first manifestation of bipolar disorder. BMC Psychiatry 2012; 12, s. 43.
    • Waszkiewicz N, Szajda SD, Kępka A, Szulc A, Zwierz K. Glycoconjugates in the detection of alcohol abuse. Biochemical Society Transactions 2011; 39: 365-369
    • Szulc A, Galinska B, Tarasow E, Waszkiewicz N, Konarzewska B, Poplawska R, Bibulowicz D, Simonienko K, Walecki J. Proton magnetic resonance spectroscopy study of brain metabolite changes after antipsychotic treatment. Pharmacopsychiatry 2011; 44: 148-157
    • Waszkiewicz N, Konarzewska B, Waszkiewicz M, Popławska R, Szajda SD, Zalewska A, Markowski T, Szulc A. Biomarkery nadużywania alkoholu. Część I. Biomarkery tradycyjne i ich interpretacja. Psychiatria Polska 2010; 44: 127-136
    • Waszkiewicz N, Popławska R, Konarzewska B, Szajda SD, Galińska B, Rutkowski P, Leśniak R, Szulc A. Biomarkery nadużywania alkoholu. Część II. Nowe biomarkery oraz ich interpretacja. Psychiatria Polska 2010; 44: 137-146
    • Waszkiewicz N, Szulc A. Reducing binge drinking harm in middle-aged and elderly adults. American Journal of Psychiatry 2010; 167: 105-106
    • Waszkiewicz N, Szajda SD, Konarzewska B, Szulc A, Kepka A, Zwierz K. Underappreciated role of binge drinking in the risk of lung cancer. European Journal of Public Heath 2010; 20: 6
    • Szulc A, Galińiska B, Tarasów E, Dzienis W, Kubas B, Konarzewska B, Waszkiewicz N, Popławska R. Wpływ leków antypsychotycznych atypowych na funkcjonowanie mózgu w schizofrenii w obrazie spektroskopii protonowej rezonansu magnetycznego. Psychiatria Polska 2010; 44: 415-426
    • Waszkiewicz N, Szajda SD, Zalewska A, Konarzewska B, Szulc A, Kepka A, Zwierz K. Binge drinking-induced liver injury. Hepatology 2009; 50: 1676
    • Waszkiewicz N, Szulc A. Can we better prevent binge drinking? Journal of Epidemiology and Community Health 2009; 63: 589
    • Waszkiewicz N, Szajda SD, Jankowska A, Waszkiewicz M, Kepka A, Konarzewska B, Szulc A, Snarska J, Zwierz K. Catabolism of salivary glycoconjugates in acute ethanol intoxication. Medical Science Monitor 2009; 15: CR413-417
    • Galińska B, Szulc A, Tarasów E, Kubas B, Dzienis W, Cześnikiewicz A, Walecki J. Duration of untreated psychosis and proton magnetic resonance spectroscopy (1H-MRS) findings in first-episode schizophrenia. Medical Science Monitor 2009; 15: CR82-CR88
    • Konarzewska B, Wołczyński S, Szulc A, Galińska B, Popławska R, Waszkiewicz N. Effect of risperidone and olanzapine on reproductive hormones, psychopathology and sexual functioning in male patients with schizophrenia. Psychoneuroendocrinology 2009; 34: 129-139
    • Waszkiewicz N, Szajda SD, Jankowska A, Kepka A, Dobryniewski J, Szulc A, Zwierz K. The effect of the binge drinking session on the activity of salivary, serum and urinary β-hexosaminidase: preliminary data. Alcohol and Alcoholism 2008; 43: 446‒ 450
    • Dossenbach M, Pecenak J, Szulc A, Irimia V, Anders M, Perkovic DL, Peciukaitiene D, Kotler M, Smulevich AB, West TM, Lowry AJ, Treuer T. Long-term antipsychotic monotherapy for schizophrenia : disease burden and comparative outcomes for patients treated with olanzapine, quetiapine, risperidone, or haloperidol montherapy in a pan-continental observational study. Journal of Clinical Psychiatry 2008; 69: 1901-1915
    • Waszkiewicz N, Szajda SD, Jankowska A, Zwierz P, Cześnikiewicz A, Szulc A, Zwierz K. The effect of acute ethanol intoxication on salivary proteins of innate and adaptive immunity. Alcoholism-Cinical and Experimental Research 2008; 32: 652-656
    • Galińska B, Szulc A, Tarasów E, Kubas B, Dzienis W, Siergiejczyk L, Cześnikiewicz A, Walecki J. Relationship between frontal N-acetylaspartate and cognitive deficits in first-episode schizophrenia. Medical Sciences Monitor 2007; 13: 11-16
    • Dzienis W, Tarasów E, Kochanowicz J, Szulc A, Walecki J, Kubas B. Utility of computed tomography and selected MR sequences in the diagnostics of patients with partial epileptic attacks. Medical Science Monitor 2007; 13: 49-54
    • Szulc A, Galińska B, Tarasów E, Kubas B, Dzienis W, Konarzewska B, Popławska R, Tomczak A, Cześnikiewicz A, Walecki J. N-acetylaspartate (NAA) levels in selected areas of the brain in patients with chronic schizophrenia treated with typical and atypical neuroleptics : A proton magnetic resonance spectroscopy (1H MRS) study. Medical Sciences Monitor 2007; 13: 17-22.
    • Szulc A, Galińska B, Tarasów E, Dzienis W, Kubas B, Konarzewska B, Walecki J, Alathiaki A.S, Cześnikiewicz A. The effect of risperidone on metabolite measures in the frontal lobe, temporal lobe, and thalamus in schizophrenic patients. A proton magnetic resonance spectroscopy (1H MRS) study. Pharmacopsychiatry 2005; 38, 214-219.