Antimicrobial activity of selective serotonin reuptake inhibitors in bacteria and fungi: a systematic review / Atividade antimicrobiana de inibidores seletivos de recaptação de serotonina em bactérias e fungos: uma revisão sistemática

Objective: this systematic review aims to compile literature data on the antimicrobial action of Selective Serotonin Reuptake Inhibitors (SSRI). Methods: To this end, the articles in this review were searched in the PubMed database between the years 2010 to 2020, using terms found in MESH as descriptors. The PRISMA flow diagram was used to analyze the process flow of the research. Later, inclusion and exclusion criteria and eligibility for data extraction and statistical analysis were applied. Results: Thus, of 252 articles found, 13 were used for this systematic review. The period in which there were more publications was in 2016-2017. All articles demonstrated the antimicrobial activity of ISRS, such as sertraline, fluoxetine, and paroxetine, in addition to their synergistic activity with some antifungals and antibacterial. Conclusion: With this, it could be concluded that the repositioning of non-antibiotic drugs that have antimicrobial activity is a promising alternative for the scientific community and, in the future, in clinical practice

Objetivo: compilar dados da literatura sobre a ação antimicrobiana dos Inibidores Seletivos de Recaptação de Serotonina (ISRS). Métodos: os artigos desta revisão foram pesquisados na base de dados PubMed, entre os anos de 2010 a 2020, utilizando, como descritores, termos encontrados no MESH. O fluxograma PRISMA foi utilizado para analisar o fluxo do processo da pesquisa. Posteriormente, foram aplicados os critérios de inclusão e exclusão e de elegibilidade para extração de dados e análise estatística. Resultados: dos 252 artigos encontrados, 13 foram utilizados para esta revisão sistemática. O período em que houve mais publicações foi em 2016-2017. Todos os artigos demonstraram a atividade antimicrobiana do ISRS, como sertralina, fluoxetina e paroxetina, além de sua atividade sinérgica com alguns antifúngicos e antibacterianos. Conclusão: o reposicionamento de medicamentos não antibióticos que possuam atividade antimicrobiana é uma alternativa promissora para a comunidade científica e, futuramente, na prática clínica.

Impacto del tratamiento de adultos mayores con ISRS y su relación con los tratamientos odontológicos / The impact of treating older adults with SSRI and its relationship with dental treatments

La población mayor de 60 años es el grupo etario de mayor crecimiento en el mundo. Debido a que la depresión es una patología frecuente en la persona adulta mayor y anciana, los inhibidores de la recap- tación de la serotonina (ISRS) son el tratamiento de primera línea de elección. Este trabajo referencia la asociación del consumo de estos fármacos con la disminución de la densidad ósea mineral (DMO), el riesgo de fracturas y su repercusión en la atención odontológica. Además, incluye una breve descripción de la homeostasis ósea y la relación depresión-carga alostática. El trabajo interdisciplinario y una correcta anamnesis pueden detectar posibles complicaciones y riesgos vinculados con este tipo de medicamen- tos. Ello facilitaría un mejor manejo, más aún en el adulto mayor, donde una pequeña variable puede repercutir en su integridad (AU)

The population over 60 is the fastest growing age group in the world. Depression is a frequent pathology in the elderly and the elderly, with serotonin reuptake inhibitors (SSRI) being the 1st line treatment of choice. The association of the consumption of this drug with a decrease in bone mineral density (BMD), risk of fractures and its impact on dental care are referenced in this work. In addition, it includes a brief description of bone homeostasis and the depression-allostatic load relationship. Interdisciplinary work and a correct anamnesis can detect possible complications and risks linked to this type of medication, facilitating better management and even more so in the elderly, where a small variable can affect their integrity (AU)

Adjunctive vortioxetine for SSRI-resistant major depressive disorder: a real-world chart review study

Objective: Selective serotonin reuptake inhibitors (SSRIs) are the cornerstone of treatment of major depressive disorder (MDD). However, non-response is common, often necessitating combination strategies. The present study assessed the efficacy of vortioxetine as an add-on therapy in patients with SSRI-resistant MDD. Methods: The charts of 36 adult outpatients with DSM-IV-TR MDD who had not achieved a response after at least 8 weeks of treatment with an SSRI were reviewed retrospectively. Subjects were treated with vortioxetine (5-20 mg/day) for 8 weeks added to the current SSRI. The main outcome measures were change from baseline in total Hamilton Scale for Depression (HAM-D) score and the rate of response (a 50% or greater reduction in HAM-D score and a Clinical Global Impression ‐ Improvement module [CGI-I] score of 1 or 2 at endpoint). HAM-D scores ≤ 7 were considered as remission. Additional outcome measures included the Snaith-Hamilton Pleasure Scale (SHAPS) and the Scale for Suicide Ideation (SSI). Results: 32 patients completed the 8 weeks of treatment. At 8 weeks, a significant reduction in HAM-D score was observed (p ≤ 0.001), with response obtained by 41.7% and remission by 33.3% of patients. Significant reductions in SHAPS and SSI were also observed (p ≤ 0.001 for both scales). Conclusions: Adjunctive vortioxetine may be useful and well-tolerated in stage I treatment-resistant depression. However, the limitations of this study (such as small sample size, absence of randomization and control group, retrospective design, etc.) must be considered.

Progress in augmentation therapy mechanism of obsessive compulsive disorder / 上海交通大学学报（医学版）

Administration of selective serotonin reuptake inhibitors (SSRI) is a widely used pharmacotherapeutic approach for obsessive-compulsive disorder (OCD) today. However, nearly half of the OCD patients do not respond to SSRI. It has been shown that some antipsychotic drugs can augment the therapeutic effect of SSRI in the patients with OCD, but the augmentation’s effect is still ineffective for some patients. Therefore, it is of great significance to explore the augmentation’s mechanism for further improvement of the clinical treatment. This article reviews some common used augmentation for OCD and discusses the underlying mechanisms.

Efficacy and tolerability of milnacipran and escitalopram: a comparative study among patients of depression

Background: The present prospective, open labelled study was designed to evaluate the efficacy and tolerability of escitalopram, selective serotonin reuptake inhibitors (SSRI) in comparison with milnacipran, dual serotonin and noradrenaline reuptake inhibitors (SNRI) in the treatment of major depressive disorder.Methods: Outpatients (N=120) with an ongoing/newly diagnosed ICD-10 major depressive episode and having a minimum score of 8 on the 21-item Hamilton Depression Rating Scale (HDRS) were assigned to escitalopram, 10–20 mg/day (54 patients) and milnacipran 50-100mg (66 patients), for an 8 week treatment period with follow up at 2nd, 4th and 8th week. The parameters for efficacy were improvement (decrease in HDRS scores at 8 weeks from baseline values), response (decrease of ?50% in the HDRS scores) and remission (HDRS score of ?7). Tolerability was assessed by comparing the frequency of adverse effects and drop out rate due to the same at the end of 2nd, 4th and 8th week in both the groups.Results: Improvement, Response rate and Remission rates at the end of eight weeks were 71.11%, 83.33% and58.33% for escitalopram and 59.35%, 34.14% and75.6% for milnacipran respectively. Adverse experiences were reported by 14% of patients in escitalopram group and 79.2% patients in milnacipran group at 8 weeks. Additionally, there were significantly lesser dropouts due to adverse events in escitalopram (3.70%) than in milnacipran group (30%).Conclusions: Escitalopram, the Senantiomer of citalopram, is a safe and effective antidepressant with potentially superior tolerability and comparable efficacy to the dual reuptake inhibitor, Milnacipran.

Electrocardiographic changes of antidepressant medication in depressive episode

Introduction: Depressive disorder is leading cause of mortality in the world, with the help of recent therapeutic strategies it is easily manageable. Antidepressant medication is the most commonly used for management of depressive disorders. Among the side effects of antidepressant, cardiovascular effects of antidepressant deserve close monitoring. Invariably, it is observed that patients undergoing antidepressant therapy are not screened for pre-existing cardiovascular diseases and more so for cardiotoxicity. Various antidepressant medications are available, with different cardiac side effects profile. Ignorance, over clinical burden, poor follow up and under evaluation of cardiovascular side effects could be attributable to an ultimate surveillance of such cases. So, this study conducted to evaluate electrocardiographic changes in therapeutic doses of antidepressant medication.Methods: An Open label-controlled study was conducted on 386 subjects to evaluate the antidepressant-induced electrocardiographic changes. Treatment seeking subjects for the depressive episode was recruited from outpatient and inpatient section of Psychiatry department after fulfilling inclusion and exclusion criteria. Data was collected on socio-demographic characteristics, and detailed pre-treatment and post-treatment clinical evaluation and electrocardiographic assessment were done.Results: Data collected and analyzed from 204 subjects, mean age of subjects taking tricyclics and SSRI (Fluoxitine) 43.6±7.5 years vs 41.5±9.6 years respectively. The study sample consists of 66% females, 33% males. Among them, 35% study subject expose to tricyclics and 65% subjects taking SSRI. 19% study subjects presented electrocardiograph changes especially tachycardia among them 55% was taking the tricyclic antidepressant. Only 10% subjects taking SSRI had post-treatment abnormal electrocardiograph changes.Conclusions: Conclusively, antidepressant form a safe therapeutic modality for the management of major depression. Its cardiovascular side effects warrant against indiscriminate use of particularly in high dose and old aged person and preexisting cardiac disease.

Serum Prolactin Levels in Patients with Major Depressive Disorder Receiving Selective Serotonin-Reuptake Inhibitor Monotherapy for 3 Months: A Prospective Study

OBJECTIVE: It is unclear whether selective serotonin-reuptake inhibitors (SSRIs) can significantly increase the prolactin level. The purpose of this study was to identify the relationship between the prolactin level and the administration of SSRIs such as escitalopram and sertraline. An additional purpose was to determine whether the elevation of prolactin differs between escitalopram and sertraline treatment. METHODS: Serum prolactin levels were measured at baseline and after 3 months in 23 patients who received SSRI monotherapy with escitalopram (n=18) (ESC group) or sertraline (n=5) (SERT group) for 3 months. RESULTS: The prevalence of hyperprolactinemia at posttreatment was 34.8% (8/23). The overall pretreatment and posttreatment prolactin levels were 21.86±20.21 and 19.89±12.03 ng/mL (mean±SD), respectively, with ranges of 6.85–86.20 and 5.19–47.61 ng/mL. The pretreatment and posttreatment prolactin levels were 20.66±15.92 and 21.97±12.33 ng/mL, respectively, in the ESC group, and 26.18±33.75 and 12.43±7.76 ng/mL in the SERT group. CONCLUSION: Clinicians should be aware that hyperprolactinemia can appear in patients receiving escitalopram or sertraline, even though they do not need routine monitoring for prolactin levels.

Antidepressant-induced Burning Mouth Syndrome: A Unique Case

Burning Mouth Syndrome (BMS) is defined as a chronic orofacial pain syndrome, without evidence of mucosal lesions and other clinical signs of disease or laboratory abnormalities. Patients with BMS complain of burning pain in the mouth, xerostomia and taste disturbances. It is more common among women and the median age of occurrence is about 60 years. BMS may be primary or secondary to other diseases. The mainstay in the treatment of BMS includes antidepressants, benzodiazepines, and anticonvulsants. A few cases of BMS caused due to medication have been reported. The causative drugs include angiotensin-converting enzyme inhibitors, anticoagulants, antipsychotics, antiretrovirals, and benzodiazepines. This is a case report of a patient on antidepressants who developed symptoms of BMS thereby causing a dilemma in management.

Survey of medical care by oncologists for depression in breast cancer patients

<b>Objective:</b> To investigate the perception of the prevalence of mental diseases in breast cancer patients and the therapeutic approach to depression undertaken by oncologists. <b>Method:</b> Self-reported questionnaires were sent to 352 breast cancer specialists. The survey contains 11 categories to elicit the perception and identification of mental illnesses in patients, diagnostic procedure, and details of antidepressant prescribed. Logistic regression was used to explore the association of oncologists' characteristics and management of depression in breast cancer patients. <b>Results:</b> Survey response rate was 31.3%. Ninety percent of the oncologists perceived the prevalence of depression to be less than 20%, while half believed that the proportion was less than 5%. The most commonly-used medication for the treatment of depression was BZDs (41.5% [<i>n</i>=39]), followed by Selective Serotonin Reuptake Inhibitors (SSRIs) (30.9% [<i>n</i>=29]). Benzodiazepines (BZDs) were most frequently prescribed (41.5%) despite its known ineligible dependency, followed by Selective Serotonin Reuptake Inhibitors (SSRIs) (30.9%). Choice of BZDs was significantly associated with the career length of oncologists (Odds Ratio [OR]=8.20), and safety of drug (OR=5.57). Contrarily, prescription of SSRIs was associated with efficiency of drug (OR=7.07). Conclusion: Relative to anxiety and insomnia, a lower awareness regarding depression was common among study oncologists. In addition, the quality of care varied among these oncologists. It is necessary to improve both the awareness and management of mental illnesses in order to enhance the total clinical care of breast cancer patients.

"When I Want to Cry I Can't": Inability to Cry Following SSRI Treatment / «Cuando quiero llorar, no lloro¼: incapacidad para llorar tras el tratamiento con inhibidores selectivos de la recaptación de serotonina

Abstract Introduction: We describe seven cases of patients with an inability to cry after treatment with selective serotonin re-uptake inhibitor (SSRI) medication, even during sad or distressing situations that would have normally initiated a crying episode, in the light of the role of the serotonergic system in emotional expression. Method: Case series drawn from patients attended in a secondary care psychiatry service. Results: While excessive crying without emotional distress has been previously reported in the literature, and is associated with reduced serotonin function, these reports suggest cases of the reverse dissociation, where emotional distress and an urge to cry was present, but crying was impaired. Discussion: Although the case series presented here is new, these cases are consistent with the neuroscience of crying and their relationship with serotonergic function, and provide preliminary evidence for a double dissociation between subjective emotional experience and the behavioural expression of crying. This helps to further illuminate the neuroscience of emotional expression and suggests the possibility that the phenomenon is an under-recognised adverse effect of SSRI treatment.

Resumen Introducción: Se describen los casos de 7 pacientes con incapacidad para llorar tras tratamiento con un inhibidor de la recaptación de serotonina (ISRS), situación que se presenta aun en situaciones estresantes o tristes, que normalmente les habrían iniciado una respuesta de llanto. Los casos se examinan a la luz de lo que se conoce acerca del papel del sistema serotoninérgico en la expresión emocional. Método: Serie de casos de pacientes que acuden a un servicio de atención secundaria en psiquiatría. Resultados: Mientras el llanto excesivo sin estrés emocional ya se había descrito en la literatura asociado con una función serotoninérgica reducida, los presentes reportes apuntan casos de la disociación inversa, en los que el estrés emocional y la urgencia de llorar se encontraban presentes, pero con incapacidad para el llanto. Discusión:Aunque la serie de casos aquí presentada es nueva, concuerdan con la neurociencia del llanto y su relación con la función serotoninérgica, y proveen evidencia preliminar para una disociación doble entre la experiencia emocional subjetiva y la expresión conductual del llanto. Esto ayuda a elucidar la neurociencia de la expresión emocional y apunta la posibilidad de que el fenómeno sea un efecto adverso poco detectado del tratamiento con ISRS.

Relationship between SSRIs and Metabolic Syndrome Abnormalities in Patients with Generalized Anxiety Disorder: A Prospective Study

OBJECTIVE: SSRIs are some of the most widely prescribed medications in the world. In addition to their effectiveness, SSRIs were reported to be associated with the side effects of weight gain, sexual dysfunction, drug interactions, extrapyramidal symptoms and discontinuation symptoms. However, the effects of SSRIs on metabolic parameters are poorly understood. METHODS: This study aims to describe the effects of SSRIs on the metabolic parameters of drug-naive first episode patients with generalized anxiety disorder. Ninety-seven female patients aged 20-41 years without any metabolic or psychiatric comorbidity were included in the study. Fluoxetine, sertraline, paroxetine, citalopram and escitalopram were randomly given to the patients. Metabolic parameters, including BMI, waist circumference and the levels of fasting glucose, total cholesterol, triglyceride, HDL, LDL and blood pressure, were measured before and after 16 weeks of treatment. RESULTS: In the paroxetine group, there was a significant increase in the parameters of weight, BMI, waist circumference, fasting glucose, total cholesterol, LDL and triglyceride after 16 weeks of treatment. There were significant increases in the levels of triglyceride in the citalopram and escitalopram groups. In the sertraline group, the total cholesterol level increased after treatment. In the fluoxetine group, there were significant reductions in the parameters of weight, total cholesterol and triglyceride. CONCLUSION: To our knowledge, this study is the first to prospectively describe metabolic syndrome abnormalities in patients with first episode generalized anxiety disorder. Although the effectiveness of the different SSRIs is similar, clinicians should be more careful when prescribing SSRIs to patients who have cardiac risk factors. Larger and lengthier controlled clinical trials are needed to explore the associations between SSRI use and metabolic syndrome.

Unusual Presentation of Blindness.

A 38-year-old male patient suffered significant bilateral visual loss by putting fingers in his eyes on and off in order to keep his eyes clean. He also used to bite his lips till they bled. Detailed report of the case with psychiatric management and ocular treatment is discussed herein.

Comparison of Treatment Adherence between Selective Serotonin Reuptake Inhibitors and Moclobemide in Patients with Social Anxiety Disorder

OBJECTIVE: With respect to the pharmacotherapy of social anxiety disorder (SAD), it has been suggested that treatment duration is an important factor that can significantly predict responses. The present study aimed to compare the treatment adherence of SAD patients who were taking either SSRIs or reversible inhibitors of MAO-A (moclobemide) by measuring treatment duration and all-cause discontinuation rates of pharmacotherapy in a natural clinical setting. METHODS: We retrospectively analysed the data of 172 patients diagnosed with SAD. Depending on their medication, we divided the patients into two groups, SSRI (n=54) or moclobemide (n=118). The expected number of all-cause discontinuation every 2 weeks after starting treatment was calculated by life table survival methods. A multi-variable Cox proportional hazard regression was used to analyze the potential influence of explanatory variables. RESULTS: Treatment duration was significantly longer in the SSRI group [46.41+/-56.96, median=12.0 (weeks)] than in the moclobemide group [25.53+/-34.74, median=12.0 (weeks), Z=2.352, p=0.019]. Overall, all-cause discontinuation rates were significantly lower with SSRIs (81%) than moclobemide (96%, chi2=4.532, p=0.033). CONCLUSION: The SSRI group had a longer treatment duration and lower all-cause discontinuation rate than moclobemide. Further, only the type of medication had a significant effect on all-cause discontinuation rates and therefore, we could predict better treatment adherence with the SSRIs in the treatment of SAD.

Usefulness of LDAEP to Predict Tolerability to SSRIs in Major Depressive Disorder: A Case Report

We report here a patient with major depressive disorder who experienced severe adverse effects after the administration of SSRIs (serotonin selective reuptake inhibitors) without improvement of his depressive symptoms. These adverse effects disappeared and his depressive symptoms improved after discontinuation of the SSRIs and the administration of tianeptine. The patient exhibited a low value for the loudness dependent of auditory evoked potentials (LDAEP) -0.14 at baseline, which means that his central serotonergic neurotransmission was already highly active. We assumed that it was this high serotonergic activity that rendered him unresponsive to SSRIs, and brought on him the adverse effects, and that the tianeptine was effective due to the lack of serotonin reuptake inhibitory action. Thus, we suggest that LDAEP can be used to predict an individual patient's tolerability and clinical response to SSRIs in major depression.

Developmental Switch of the Serotonergic Role in the Induction of Synaptic Long-term Potentiation in the Rat Visual Cortex

Synaptic long-term potentiation (LTP) and long-term depression (LTD) have been studied as mechanisms of ocular dominance plasticity in the rat visual cortex. Serotonin (5-hydroxytryptamine, 5-HT) inhibits the induction of LTP and LTD during the critical period of the rat visual cortex (postnatal 3~5 weeks). However, in adult rats, the increase in 5-HT level in the brain by the administration of the selective serotonin reuptake inhibitor (SSRI) fluoxetine reinstates ocular dominance plasticity and LTP in the visual cortex. Here, we investigated the effect of 5-HT on the induction of LTP in the visual cortex obtained from 3- to 10-week-old rats. Field potentials in layer 2/3, evoked by the stimulation of underlying layer 4, was potentiated by theta-burst stimulation (TBS) in 3- and 5-week-old rats, then declined to the baseline level with aging to 10 weeks. Whereas 5-HT inhibited the induction of LTP in 5-week-old rats, it reinstated the induction of N-methyl-D-aspartate receptor (NMDA)-dependent LTP in 8- and 10-week-old rats. Moreover, the selective SSRI citalopram reinstated LTP. The potentiating effect of 5-HT at 8 weeks of age was mediated by the activation of 5-HT2 receptors, but not by the activation of either 5-HT1A or 5-HT3 receptors. These results suggested that the effect of 5-HT on the induction of LTP switches from inhibitory in young rats to facilitatory in adult rats.

Mirtazapine Augmentation for Selective Serotonin Reuptake Inhibitor-Induced Sexual Dysfunction: A Retropective Investigation

The aim of the present study was to retrospectively identify sexual dysfunction changes in the patients under mirtazapine-augmented serotonin reuptake inhibito (SSRI) treatment. The study comprised medical records of 20 outpatients, under mirtazapine-augmented SSRI treatment for their major depressive disorder, who had been selected among the patients that had developed sexual dysfunction to previous treatment as monotherapy, with SSRI for at least six weeks. These drugs were maintained and mirtazapine were added (15-45 mg/day). There was a significant difference in scores between baseline and week 4 or week 8 on the both Hamilton Depression Rating and Arizona Sexual Experience Scale. According to Clinical Global Impression-Improvement, 68.4% of the patients were responders. The use of low-dose mirtazapine as an add-on treatment to SSRIs appears to be an effective and well-tolerated augmenttaion for sexual dysfunction caused by SSRIs.

Safety and Efficacy of Add on Modafinil to Selective Serotonin Reuptake Inhibitors in Major Depressive Disorder.

Aim: Despite the efficacy of selective serotonin reuptake inhibitors (SSRIs) in the treatment of major depression, a significant number of patients show partial or no remission of symptoms. Although antidepressant medications are effective, they have a delayed onset of therapeutic effect. Modafinil is a novel psychostimulant that may be helpful in treating patients with residual symptoms of depression. The efficacy of modafinil as add-on therapy to SSRIs in depressed patients in Indian population is lacking; hence this study was designed to study the efficacy and safety of Modafinil as add-on therapy to SSRI in depressed patient in Indian Population.Methods: In an open, randomized study, 50 patients diagnosed with major depressive disorder (MDD) were divided into two groups. In Group A (n = 25) patients received conventional SSRIs with low dose Modafinil for 8 weeks. In Group B (n = 25) patients received conventional SSRIs for 8 weeks. Patients were evaluated at baseline and then at the end of 2, 4, 6, and 8 weeks. Results: There was significant improvement in Hamilton depression rating scale (HDRS), Epworth Sleepiness Scale (ESS), Fatigue severity Scale (FSS) and Clinical Global Improvement – severity (CGI-S) Scale (p < 0.05) in both groups. Modafinil in low dose as add on therapy showed more decrease in scores, had earlier onset of action, as compared to conventional treatment (p < 0.05). No serious adverse event was reported in either of the groups. Conclusion: Low dose Modafinil as add-on therapy had shown better efficacy, earlier onset of action as compared to conventional treatment in MDD in Indian patients.

Neonatal exposure to citalopram, a serotonin selective reuptake inhibitor, programs a delay in the reflex ontogeny in rats / Exposição neonatal ao citalopram, um inibidor seletivo da recaptação de serotonina, programa retardo na ontogênese reflexa em ratos

Serotonin influences the growth and development of the nervous system, as well as its behavioral manifestations. The possibility exists that increased brain serotonin availability in young animals modulates their neuro-behavioral responses. This study investigated the body weight gain and reflex ontogeny of neonatal rats treated during the suckling period with two doses of citalopram (5 mg, or 10 mg/kg, sc, daily). The time of the appearance of reflexes (palm grasp righting, free-fall righting, vibrissa placing, auditory startle response, negative geotaxis and cliff avoidance) as well as the body weight evolution were recorded. In general, a delay in the time of reflex development and a reduced weight gain were observed in drug-treated animals. These findings suggest that serotoninergic mechanisms play a role in modulating body weight gain and the maturation of most reflex responses during the perinatal period in rats.

A serotonina influencia o crescimento e o desenvolvimento do sistema nervoso e sua expressão comportamental. O aumento da disponibilidade de serotonina no cérebro de ratos jovens parece modular as respostas neurocomportamentais. Neste estudo, foram investigados o ganho de peso corporal e a ontogênese dos reflexos em ratos neonatos, tratados diariamente, durante o período de aleitamento, com duas doses de citalopram (5 ou 10 mg/Kg de peso corporal, via subcutânea). Foram avaliados, o tempo de aparecimento dos reflexos (preensão palmar, endireitamento, colocação pelas vibrissas, resposta ao susto, geotáxico negativo e aversão ao precipício), e a evolução do peso corporal. Foi observado atraso no tempo de desenvolvimento de alguns reflexos e redução no ganho de peso corporal. Os achados em ratos sugerem que as alterações no ganho de peso corporal e na maturação dos reflexos são programadas, durante o período perinatal, com participação de mecanismos serotoninérgicos de modulação.

Aberrant Response of Selective Serotonin Reuptake Inhibitor in Two Patients with High N100 Amplitude Slope / 대한정신약물학회지

Serotonin is one of the most important neurotransmitters involved in the pathophysiology of depressive illness. The assessment of alteration of cerebral serotonin has been still controversial but interesting topic to study. Recently, increasing evidence has accumulated that the N100 amplitude slope reflects cerebral serotonin activity and treatment response of selective serotonin reuptake inhibitors (SSRIs). We report on two patients who showed abrupt mood changes and side effects after taking SSRI antidepressants. In both patients, aberrantly high N100 amplitude slopes were observed. Our cases suggest that the N100 amplitude slope may be a reliable indicator for predicting manic conversion and side effects in the SSRI treatment of depressive patients. Controlled studies are necessary to confirm whether a high N100 amplitude slope is a useful indicator of SSRI supersensitivity.

Comparison of the Effects of Selective Serotonin Reuptake Inhibitors and Mirtazapine on Hyponatremia in Patients with Major Depressive Disorder: A Preliminary Report / 대한정신약물학회지

OBJECTIVE: Hyponatremia (serum sodium arbitrarily defined as less than 135 mmol/L) is an increasingly recognized adverse effect of antidepressants such as selective serotonin reuptake inhibitors (SSRIs). This study compared the prevalence of hyponatremia associated with the use of SSRIs to that associated with mirtazapine in patients with major depressive disorder (MDD). METHODS: The retrospective study included inpatients with MDD who had been treated with an antidepressant over a period of at least 4 weeks. The medical records of 58 patients treated with a SSRI and those of 48 patients treated with mirtazapine were analyzed. Demographic variables and serum sodium levels (at baseline, week 2, week 4) were compared between SSRI users and mirtazapine users. RESULTS: Four patients (6.9%) from the SSRI group (N=58) exhibitedhyponatremia during the study period. At week 2, patients treated with a SSRI had lower serum sodium levels than the patients treated with mirtazapine, but at week 4, serum sodium levels did not differ significantly between the two groups. Elderly subjects (60 years and older) in the SSRI group exhibited lower serum sodium levels at weeks 2 and 4. CONCLUSIONS: The results indicate that among patients with MDD, SSRI treatment may be associated with decreased serum sodium levels, and that elderly patients are at greater risk for hyponatremia. Further prospective studies would help clarify the relative risks of hyponatremia among various antidepressants, including SSRIs and others.