1.THE HISTOCHEMICAL CHANGES OF THE CEREBRAL CORTEX DURING STRYCHNIZATION AND SPREADING DEPRESSION CAUSED BY LOCAL APPLICATION OF POTASSINM CHLORIDE
Gonmei SHU ; Kueipin YEN ; Chin CHU ; Weichang CHEN
Acta Anatomica Sinica 1955;0(03):-
Twenty-four adult rabbits(body weight 1500—2000 gm),under light urethane ana- thesia(1 gm/kg),were subjected to craniotomy.The symmetrical areas of the parietal cortex were exposed and each side was covered by a filter paper which had been soaked with any one of the following drugs:(1)2% Strychnine(Sulphate),(2) 1‰ Stry- chnine,(3)20% KCI,(4)2% KCl.The normal saline was used for the controls. Thirty minutes later,all animals were killed by decapitation.The cortical areas were rapidly removed within one minute and stained with the following method:(1)Gomori's method for acid phosphatase(ACP),(2)Unna's method for ribonucleic acid(RNA), and(3)Toluidine blue stain for Nissl bodies.The cevical cord(C3-4)was also re- moved in some animals and stained for RNA.In five animals,the EEG records were obtained from the cortical surface with the silver-silver chloride nonpolarized electrodes. The EEG results confirmed the established experiments that when 20% KCl was placed locally,the amplitudes of the EEG waves became markedly decreased,while 2% Stry- chnine was applied,the typical 'Strychnine Spikes'appeared consistently. The local application of 20% KCl did not produce any significant effect on the RNA contents of the horizontal cells(Cajal's cells)in the lst layer.But the pyramidal cells of the 2nd,3rd layers exhibited a typical central chromatolysis,i.e.,RNA decreased or disappeared,nucleus became eccentric,Nissl bodies underwent dissolution.The granu- lar cells of the fourth layer also showed central chomatolysis,but less marked.The ganglion cells and polymorphic cells in 5th,6th layers did not differ apparently from that of the normal saline controls.2% KCl produced the similar effect although the de- generative changes were not so severe as compared with that of the 20% KCl. Local application of 2% Strychnine did not alter the RNA levels of the Cajal cells. The RNA content of pyramidal cells in 2nd—3rd layers decreased to a considerable de- gree,but the typical chromotalytical changes were absent.The RNA of the large pyramidal cells in the 5th layer appeared as clusters of large granules.The RNA levels of 4th,6th layer showed no considerable changes as compared with that of the normal saline controls,1‰ Strychnine had no significant effect on the RNA content of the cere- bral cortex. The RNA of the anterior horn cells of the cevical cord was the same as the control animals no matter what drugs had been applied. 20% KCl enhanced the ACP reaction of the whole cortex,especially the 2nd—3rd layers.2% KCl produced the same effect but to a lesser degree.1% Strychnine also increased the ACP activities of the 2nd—4th layers.But 1‰ Strychnine had no signifi- cant effect. Based on the mentioned results,the significance of RNA and ACP for the functions and the functional relations of nerve cells between cortical neurons were discussed.
2.Effect of probiotics Lactobacillus paracasei GKS6, L. plantarum GKM3, and L. rhamnosus GKLC1 on alleviating alcohol-induced alcoholic liver disease in a mouse model
You-Shan TSAI ; Shih-Wei LIN ; Yen-Lien CHEN ; Chin-Chu CHEN
Nutrition Research and Practice 2020;14(4):299-308
BACKGROUND/OBJECTIVES:
Heavy alcohol consumption causes the development of alcoholic liver disease (ALD), a neglected but important public health problem. Many studies have pointed out that probiotics could improve gut health, which is also considered to be a cause of ALD. Therefore, this study screened the probiotics, Lactobacillus casei GKC1 (GKC1), L. fermentum GKF3 (GKF3), Bifidobacterium lactis GKK2 (GKK2), L. rhamnosus GKLC1 (GKLC1), L. paracasei GKS6 (GKS6), and L. plantarum GKM3 (GKM3), for their potential benefits in alleviating ALD for applications to disease prevention.
SUBJECTS/METHODS:
C57BL/6N mice were divided into 8 groups (n = 6 in each): normal control, positive control (alcohol-diet fed), and treatments of feeding probiotics GKC1, GKF3, GKK2, GKLC1, GKS6, and GKM3 under an oral dose 0.82 g/kg B.W. per day by oral gavage. The experiment was conducted for 8 weeks, and the concentrations of alanine aminotransferase (ALT), aspartate aminotransferase, triglyceride (TG), and total cholesterol (TC) in mice were measured. The glutathione (GSH), catalase (CAT), and histology were analyzed after sacrifice.
RESULTS:
The results showed a decrease in the serum ALT, liver TG, and liver TC levels in the GKS6, GKM3, and GKLC1 groups compared to the positive control. In addition, the decreasing GSH and CAT levels were inhibited in the GKS6 and GKM3 groups. The histopathological results showed that all probiotics could reduce the accumulation of liver fat. Furthermore, there was a significant difference in GKLC1 with lower stomach damage compared to the alcohol-fed mice without any addition of probiotics.
CONCLUSIONS
GKLC1, GKS6, and GKM3 can be used as supplements for alleviating the development of ALD.
3.Retiform Hemangioendothelioma of the Neck.
Chin Lung KUO ; Paul Chih Hsueh CHEN ; Wing Yin LI ; Pen Yuan CHU
Journal of Pathology and Translational Medicine 2015;49(2):171-173
No abstract available.
Hemangioendothelioma*
;
Neck*
4.An 8-Week Low-Intensity Progressive Cycling Training Improves Motor Functions in Patients with Early-Stage Parkinson's Disease.
Hsiu Chen CHANG ; Chin Song LU ; Wei Da CHIOU ; Chiung Chu CHEN ; Yi Hsin WENG ; Ya Ju CHANG
Journal of Clinical Neurology 2018;14(2):225-233
BACKGROUND AND PURPOSE: The effects of high-intensity cycling as an adjuvant therapy for early-stage Parkinson's disease (PD) were highlighted recently. However, patients experience difficulties in maintaining these cycling training programs. The present study investigated the efficacy of cycling at a mild-to-moderate intensity in early-stage PD. METHODS: Thirteen PD patients were enrolled for 16 serial cycling sessions over a 2-month period. Motor function was assessed using the Unified Parkinson's Disease Rating Scale part III (UPDRS III) and Timed Up and Go (TUG) test as primary outcomes. The Montreal Cognitive Assessment (MoCA), modified Hoehn and Yahr Stage (mHYS), total UPDRS, Falls Efficacy Scale, New Freezing of Gait Questionnaire, Schwab and England Activities of Daily Living, 39-item Parkinson's Disease Questionnaire, Patient Global Impression of Change, and gait performance were assessed as secondary outcomes. RESULTS: The age and the age at onset were 59.67±7.24 and 53.23±10.26 years (mean±SD), respectively. The cycling cadence was 53.27±8.92 revolutions per minute. The UPDRS III score improved significantly after 8 training sessions (p=0.011) and 16 training sessions (T2) (p=0.001) in the off-state, and at T2 (p=0.004) in the on-state compared to pretraining (T0). The TUG duration was significantly shorter at T2 than at T0 (p < 0.05). The findings of MoCA, total UPDRS, double limb support time, and mHYS (in both the off- and on-states) also improved significantly at T2. CONCLUSIONS: Our pioneer study has demonstrated that a low-intensity progressive cycling exercise can improve motor function in PD, especially akinesia. The beneficial effects were similar to those of high-intensity rehabilitation programs.
Accidental Falls
;
Activities of Daily Living
;
Age of Onset
;
Education
;
England
;
Extremities
;
Freezing
;
Gait
;
Humans
;
Methylenebis(chloroaniline)
;
Parkinson Disease*
;
Rehabilitation
5.Altered Auditory P300 Performance in Parents with Attention Deficit Hyperactivity Disorder Offspring
Mei Hung CHI ; Ching Lin CHU ; I Hui LEE ; Yi Ting HSIEH ; Ko Chin CHEN ; Po See CHEN ; Yen Kuang YANG
Clinical Psychopharmacology and Neuroscience 2019;17(4):509-516
OBJECTIVE: Altered event-related potential (ERP) performances have been noted in attention deficit hyperactivity disorder (ADHD) patients and reflect neurocognitive dysfunction. Whether these ERP alterations and correlated dysfunctions exist in healthy parents with ADHD offspring is worth exploring. METHODS: Thirteen healthy parents with ADHD offspring and thirteen healthy controls matched for age, sex and years of education were recruited. The auditory oddball paradigm was used to evaluate the P300 wave complex of the ERP, and the Wechsler Adult Intelligence Scale-Revised, Wisconsin Card Sorting Test, and continuous performance test were used to measure neurocognitive performance. RESULTS: Healthy parents with ADHD offspring had significantly longer auditory P300 latency at Fz than control group. However, no significant differences were found in cognitive performance. CONCLUSION: The presence of a subtle alteration in electro-neurophysiological activity without explicit neurocognitive dysfunction suggests potential candidate of biological marker for parents with ADHD offspring.
Adult
;
Attention Deficit Disorder with Hyperactivity
;
Biomarkers
;
Cognition
;
Education
;
Evoked Potentials
;
Humans
;
Intelligence
;
Parents
;
Wisconsin
6.The Characteristics of Acute Aortic Dissection among Young Chinese Patients: A Comparison between Marfan Syndrome and Non-Marfan Syndrome Patients.
Shih Hung TSAI ; Yen Yue LIN ; Chin Wang HSU ; Yu Long CHEN ; Min Tser LIAO ; Shi Jye CHU
Yonsei Medical Journal 2009;50(2):239-244
PURPOSE: Aortic dissection (AoD) is one of the most common catastrophes involving the aorta. Nevertheless, early diagnosis remains to be a challenge in the Emergency Department (ED), particularly in young individuals. In this study, we attempted to identify the characteristics of acute AoD among young individuals, particular in patients with Marfan syndrome. MATERIALS AND METHODS: This was an retrospective chart-review study conducted in a tertiary referring hospital. The hospital database was queried for the combination of AoD and patients under age of 40 years. The medical charts were reviewed to obtain demographic data, clinical data and laboratory characteristics by using a standardized data collection sheet. A comparison between Marfan syndrome and non-Marfan syndrome patients was performed. RESULTS: During the 10-years period, 18 of 344 patients with acute AoD were younger than 40 years-old. Patients with Marfan syndrome developed acute AoD at a younger age than patients without Marfan syndrome. The mean diastolic blood pressure was significantly lower in patients with Marfan syndrome upon presenting to the ED than those without. Patients with Marfan syndrome had trends toward higher risk of development of type A AoD, increased recurrence rate and higher mortality rate than those without. However, statistical significance was not present. CONCLUSION: ED physicians should have high alert to acute AoD in young patients presenting with severe unexplained chest and back pain, particularly in those patients with a history of heart diseases, hypertension, and Marfan syndrome or featuring Marfanoid habitus. Acute coronary syndrome, unexplained abdominal symptoms, and sudden cardiac arrest could be the initial manifestation of AoD in young patients. A low threshold to perform enhanced computed tomography may facilitate early diagnosis and timely treatment in this patient population.
Adult
;
Aneurysm, Dissecting/*complications/epidemiology/*pathology
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Aortic Aneurysm/complications/epidemiology/*pathology
;
Asian Continental Ancestry Group
;
Female
;
Heart Defects, Congenital/complications/physiopathology
;
Humans
;
Hypertension/complications/physiopathology
;
Male
;
Marfan Syndrome/*complications/*physiopathology
;
Middle Aged
;
Retrospective Studies
;
Young Adult
7.ALDH2 Gene: Its Effects on the Neuropsychological Functions in Patients with Opioid Use Disorder Undergoing Methadone Maintenance Treatment
Po-Wei LEE ; Tzu-Yun WANG ; Yun-Hsuan CHANG ; Sheng-Yu LEE ; Shiou-Lan CHEN ; Ze-Cheng WANG ; Po See CHEN ; Chun-Hsien CHU ; San-Yuan HUANG ; Nian-Sheng TZENG ; I Hui LEE ; Kao Chin CHEN ; Yen Kuang YANG ; Jau-Shyong HONG ; Ru-Band LU
Clinical Psychopharmacology and Neuroscience 2020;18(1):136-144
Objective:
Patients with opioid use disorder (OUD) have impaired attention, inhibition control, and memory function. The aldehyde dehydrogenase 2 (ALDH2 ) gene has been associated with OUD and ALDH2 gene polymorphisms may affect aldehyde metabolism and cognitive function in other substance use disorder. Therefore, we aimed to investigate whether ALDH2 genotypes have significant effects on neuropsychological functions in OUD patients undergoing methadone maintenance therapy (MMT).
Methods:
OUD patients undergoing MMT were investigated and followed-up for 12 weeks. ALDH2 gene polymorphisms were genotyped. Connors’ Continuous Performance Test (CPT) and the Wechsler Memory Scale-Revised (WMS-R) were administered at baseline and after 12 weeks of MMT. Multivariate linear regressions and generalized estimating equations (GEEs) were used to examine the correlation between the ALDH2 genotypes and performance on the CPTs and WMS-R.
Results:
We enrolled 86 patients at baseline; 61 patients completed the end-of-study assessments. The GEE analysis showed that, after the 12 weeks of MMT, OUD patients with the ALDH2 *1/*2+*2/*2 (ALDH2 inactive) genotypes had significantly higher commission error T-scores (p = 0.03), significantly lower hit reaction time T-scores (p = 0.04), and significantly lower WMS-R visual memory index scores (p = 0.03) than did patients with the ALDH2 1 */*1 (ALDH2 active) genotype.
Conclusion
OUD patients with the ALDH2 inactive genotypes performed worse in cognitive domains of attention, impulse control, and memory than did those with the ALDH2 active genotype. We conclude that the ALDH2 gene is important in OUD and is associated with neuropsychological performance after MMT.
8.A Systemic Review and Experts' Consensus for Long-acting Injectable Antipsychotics in Bipolar Disorder.
Yuan Hwa CHOU ; Po Chung CHU ; Szu Wei WU ; Jen Chin LEE ; Yi Hsuan LEE ; I Wen SUN ; Chen Lin CHANG ; Chien Liang HUANG ; I Chao LIU ; Chia Fen TSAI ; Yung Chieh YEN
Clinical Psychopharmacology and Neuroscience 2015;13(2):121-128
Bipolar disorder (BD) is a major psychiatric disorder that is easily misdiagnosed. Patient adherence to a treatment regimen is of utmost importance for successful outcomes in BD. Several trials of antipsychotics suggested that depot antipsychotics, including long-acting first- and second-generation agents, are effective in preventing non-adherence, partial adherence, and in reducing relapse in BD. Various long-acting injectable (LAI) antipsychotics are available, including fluphenazine decanoate, haloperidol decanoate, olanzapine pamoate, risperidone microspheres, paliperidone palmitate, and aripiprazole monohydrate. Due to the increasing number of BD patients receiving LAI antipsychotics, treatment guidelines have been developed. However, the clinical applicability of LAI antipsychotics remains a global cause for concern, particularly in Asian countries. Expert physicians from Taiwan participated in a consensus meeting, which was held to review key areas based on both current literature and clinical practice. The purpose of this meeting was to generate a practical and implementable set of recommendations for LAI antipsychotic use to treat BD; target patient groups, dosage, administration, and adverse effects were considered. Experts recommended using LAI antipsychotics in patients with schizophrenia, rapid cycling BD, BD I, and bipolar-type schizoaffective disorder. LAI antipsychotic use was recommended in BD patients with the following characteristics: multiple episodes and low adherence; seldom yet serious episodes; low adherence potential per a physician's clinical judgment; preference for injectable agents over oral agents; and multiple oral agent users still experiencing residual symptoms.
Antipsychotic Agents*
;
Asian Continental Ancestry Group
;
Bipolar Disorder*
;
Consensus*
;
Fluphenazine
;
Haloperidol
;
Humans
;
Judgment
;
Microspheres
;
Patient Compliance
;
Psychotic Disorders
;
Recurrence
;
Risperidone
;
Schizophrenia
;
Taiwan
;
Aripiprazole
;
Paliperidone Palmitate