1.Central Pontine Myelinolysis in a Normonatremic Patient with Depression
Yu Chia LIU ; Yen Kuang YANG ; Po See CHEN ; Wei Hung CHANG
Clinical Psychopharmacology and Neuroscience 2021;19(3):564-567
A 76-year-old male presented with a recurrent depressive episode, an unsteady gait and cognitive impairment. Extensive blood tests, including hemogram, biochemical tests, folic acid, vitamin B12, and thyroid hormone, showed normal results. With the exception of the unsteady gait, neurological examination was negative. Brian magnetic resonance imaging (MRI) showed the typical feature of central pontine myelinolysis (CPM); however, there was no history of alcoholism, liver transplantation, malnutrition or rapid correction of hyponatremia. The patient had taken venlafaxine to treat major depressive disorder for more than 20 years. After discontinuation of venlafaxine, the unsteady gait gradually resolved, and subsequent MRI revealed reduction of the lesions over 6 months. We discuss herein the possible correlation between chronic use of venlafaxine and CPM.
2.Central Pontine Myelinolysis in a Normonatremic Patient with Depression
Yu Chia LIU ; Yen Kuang YANG ; Po See CHEN ; Wei Hung CHANG
Clinical Psychopharmacology and Neuroscience 2021;19(3):564-567
A 76-year-old male presented with a recurrent depressive episode, an unsteady gait and cognitive impairment. Extensive blood tests, including hemogram, biochemical tests, folic acid, vitamin B12, and thyroid hormone, showed normal results. With the exception of the unsteady gait, neurological examination was negative. Brian magnetic resonance imaging (MRI) showed the typical feature of central pontine myelinolysis (CPM); however, there was no history of alcoholism, liver transplantation, malnutrition or rapid correction of hyponatremia. The patient had taken venlafaxine to treat major depressive disorder for more than 20 years. After discontinuation of venlafaxine, the unsteady gait gradually resolved, and subsequent MRI revealed reduction of the lesions over 6 months. We discuss herein the possible correlation between chronic use of venlafaxine and CPM.
4.Harm Avoidance is Correlated with the Reward System in Adult Patients with Attention Deficit Hyperactivity Disorder: A Functional Magnetic Resonance Imaging Study
Tsung-Hua LU ; Shih-Hsien LIN ; Mei Hung CHI ; Ching-Lin CHU ; Dong-Yu YANG ; Wei Hung CHANG ; Po See CHEN ; Yen Kuang YANG
Clinical Psychopharmacology and Neuroscience 2023;21(1):99-107
Objective:
Hypoactivity in the reward system among patients with attention deficit hyperactivity disorder (ADHD) is a well-known phenomenon. Whether the activity in the reward pathway is related to harm avoidance, such as in sensitivity to punishment, is unclear. Evidence regarding the potential difference between ADHD patients and controls in terms of this association is scarce.
Methods:
Event-related functional magnetic resonance imaging was conducted on subjects performing the Iowa gambling test. Fourteen adults with ADHD and 14 controls were enrolled in the study.
Results:
Harm avoidance was found to be positively correlated with the activities of the bilateral orbitofrontal cortex and right insula in individuals with ADHD. A group difference was also confirmed.
Conclusion
Understanding the roles of harm avoidance and brain activation during risk tasks is important.
5.Medium-chain triglyceride ketogenic diet for drugresistant epilepsy in Taiwan: A prospective study in a single center
Yi-Shan Wang ; Meng-Ying Hsieh ; Po-Cheng Hung ; Min-Liang Chou ; Jainn-Jim Lin ; I-Jun Chou ; Wan-Ling Huang ; Huei-Shyong Wang ; Kuang-Lin Lin
Neurology Asia 2016;21(4):341-347
Objective: This study aimed to determine the efficacy of a medium-chain triglyceride ketogenic diet
on patients with drug-resistant epilepsy over a period of 1 year and 8 months. Methods: Patients
with refractory epilepsy on a medium-chain triglyceride ketogenic diet were prospectively enrolled.
Their clinical condition and the effectiveness of the ketogenic diet were followed-up every month for
1 year. Adverse events and the reasons for discontinuing the diet were recorded. Results: Fifty-three
patients (27 males and 26 females) were enrolled. At the end of the study, 21 patients remained on
the diet, 14 of whom were followed-up for 1 year. Among the 53 patients, 22.6% had a more than
50% reduction in seizure frequency, and 16.9% became seizure-free.
Conclusions: After a 1-year follow-up, the use of a medium-chain triglyceride ketogenic diet for patients
with drug-resistant epilepsy was found to be a safe and effective therapy, and may be considered to
bean alternative for patients with difficult-to-control seizures in children as well as young adults.
Epilepsy
6.The Interaction of Oxytocin and Social Support, Loneliness, and Cortisol Level in Major Depression
Tsung Yu TSAI ; Huai Hsuan TSENG ; Mei Hung CHI ; Hui Hua CHANG ; Cheng Kuan WU ; Yen Kuang YANG ; Po See CHEN
Clinical Psychopharmacology and Neuroscience 2019;17(4):487-494
OBJECTIVE: Loneliness is a specific risk factor for depressive symptoms and suicidal behavior. The present study examined whether the serum oxytocin level would interact with social support and buffers loneliness and hypothalamic-pituitary-adrenal (HPA)-axis activity in drug-naïve patients with major depressive disorder (MDD). METHODS: Twenty-six patients with MDD (male:female = 3:23; mean age, 45.54 ± 12.97 years) were recruited. The 17-item Hamilton Depression Rating Scale, UCLA Loneliness Scale and self-reported Measurement of Support Function Questionnaire were administered. Serum oxytocin and cortisol levels were assessed using a commercial immunoassay kits. RESULTS: In MDD patients, a negative association was found between degrees of social support and loneliness (β = −0.39, p = 0.04). The interaction between social support and serum oxytocin level was negatively associated with loneliness (β = −0.50, p = 0.017) and serum cortisol level (β = −0.55, p = 0.020) after adjusting for age. Follow-up analyses showed that the association between higher social support and lower loneliness was observed only in the higher-oxytocin group (r = −0.75, p = 0.003) but not in the lower group (r = −0.19, p = 0.53). The significance remained after further adjusting for sex and depression severity. CONCLUSION: Low oxytocin level is a vulnerability factor for the buffering effect of social support for loneliness and aberrant HPA-axis activity in MDD patients.
Buffers
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Depression
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Depressive Disorder, Major
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Follow-Up Studies
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Humans
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Hydrocortisone
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Immunoassay
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Loneliness
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Oxytocin
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Risk Factors
7.Holistic Consideration of Patients with Schizophrenia to Improve Medication Adherence and Outcomes.
Lan Ting LEE ; Kao Chin CHEN ; Wei Hung CHANG ; Po See CHEN ; I Hui LEE ; Yen Kuang YANG
Clinical Psychopharmacology and Neuroscience 2015;13(2):138-143
Although several algorithms have been applied to treat patients with schizophrenia, their clinical use remains still limited, because most emphasize the prescription of antipsychotics. A new algorithm with a more holistic approach to treating patients with schizophrenia, to be used before applying traditional prescribing guidelines, was thus proposed by an expert team of Taiwanese psychiatrists. In this algorithm, several important treatment tasks/modalities are proposed, including long-acting injection anti-psychotics, shared decision-making, a case management system, compulsory treatment by law, community rehabilitation programs, the patients' feeling about their health care professionals (patients' behaviors) and their attitude/knowledge of their conditions/illness. This study proposes that evaluating the medication adherence of patients can be determined by two key domains, namely patients' behaviors and attitudes. Based on different levels of their behaviors (X-axis) and attitude/knowledge (Y-axis), it is possible to categorize patients with schizophrenia into six subgroups, for which various different interventions, including the use of antipsychotics, could be applied and integrated. Further research is needed to assess the applicability of this treatment algorithm in clinical settings.
Antipsychotic Agents
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Case Management
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Delivery of Health Care
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Holistic Health
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Humans
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Jurisprudence
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Medication Adherence*
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Prescriptions
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Psychiatry
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Rehabilitation
;
Schizophrenia*
8.Which Severe Mental Illnesses Most Increase the Risk of Developing Dementia? Comparing the Risk of Dementia in Patients with Schizophrenia, Major Depressive Disorder and Bipolar Disorder
Wei Hung CHANG ; Chien-Chou SU ; Kao Chin CHEN ; Yin Ying HSIAO ; Po See CHEN ; Yen Kuang YANG
Clinical Psychopharmacology and Neuroscience 2023;21(3):478-487
Objective:
Previous studies have shown that certain severe mental illnesses (SMIs) increase the risk of dementia, but those that increase the risk to a greater degree in comparison with other SMIs are unknown. Furthermore, physical illnesses may alter the risk of developing dementia, but these cannot be well-controlled.
Methods:
Using the Taiwan National Health Insurance Research Database, patients with schizophrenia, bipolar disorder and major depressive disorder (MDD) were recruited. We also recruited normal healthy subjects as the control group.All subjects were aged over 60 years, and the duration of follow-up was from 2008 to 2015. Multiple confounders were adjusted, including physical illnesses and other variables. Use of medications, especially benzodiazepines, was analyzed in a sensitivity analysis.
Results:
36,029 subjects (MDD: 23,371, bipolar disorder: 4,883, schizophrenia: 7,775) and 108,084 control subjects were recruited after matching according to age and sex. The results showed that bipolar disorder had the highest hazard ratio (HR) (HR: 2.14, 95% confidence interval [CI]: 1.99−2.30), followed by schizophrenia (HR: 2.06, 95% CI: 1.93−2.19) and MDD (HR: 1.60, 95% CI: 1.51−1.69). The results remained robust after adjusting for covariates, and sensitivity analysis showed similar results. Anxiolytics use did not increase the risk of dementia in any of the three groups of SMI patients.
Conclusion
SMIs increase the risk of dementia, and among them, bipolar disorder confers the greatest risk of developing dementia. Anxiolytics may not increase the risk of developing dementia in patients with an SMI, but still need to be used with caution in clinical practices.
10.Serotonin Modulates the Correlations between Obsessive-compulsive Trait and Heart Rate Variability in Normal Healthy Subjects: A SPECT Study with 123 IADAM and Heart Rate Variability Measurement
Che Yu KUO ; Kao Chin CHEN ; I Hui LEE ; Huai-Hsuan TSENG ; Nan Tsing CHIU ; Po See CHEN ; Yen Kuang YANG ; Wei Hung CHANG
Clinical Psychopharmacology and Neuroscience 2022;20(2):271-278
Objective:
The impact of serotonergic system on obsessive-compulsive disorder (OCD) is well studied. However, the correlation between OC presentations and autonomic nervous system (ANS) is still unclear. Furthermore, whether the correlation might be modulated by serotonin is also uncertain.
Methods:
We recruited eighty-nine healthy subjects. Serotonin transporter (SERT) availability by [ 123 I]ADAM and heart rate variability (HRV) tests were measured. Symptoms checklist-90 was measured for the OC presentations. The interaction between HRV and SERT availability were calculated and the correlation between HRV and OC symptoms were analyzed after stratified SERT level into two groups, split at medium.
Results:
The interactions were significant in the factors of low frequency (LF), high frequency (HF), and root mean square of successive differences (RMSSD). Furthermore, the significantly negative correlations between OC symptoms and the above HRV indexes existed only in subjects with higher SERT availability.
Conclusion
OC symptoms might be correlated with ANS regulations in subjects with higher SERT availability.