1.Complex Coil Assisted Single Coil Embolization for Small Intracranial Aneurysm.
Ming Shiang YANG ; Tzu Hsien YANG ; Chang Hsien OU ; Si Wa CHAN ; Tai I CHEN ; Chia Jung YANG ; Chia Ming CHIANG ; Wen Chien HUANG
Neurointervention 2013;8(2):105-109
The purpose of the technical note is to introduce the complex coil assisted coil embolization method in the treatment of intracranial small aneurysm, in order to enhance the safety of the procedure. The first microcatheter was navigated into the aneurysm sac and the ultrasoft coil was used as the embolization coil. If the embolizations coil could not stay within the aneurysm sac smoothly, such as coil herniation into parent artery during the delivery process. The second microcatheter would be navigated to the aneurysm level in the parent artery. Another complex coil was delivered within the parent artery via the second microcatheter to provide the neck bridge effect in order to enhance the stability of embolization coil. Besides, the protection coil will not disturb the parent artery flow. While the embolization coil was put into the aneurysm sac smoothly under the help of complex protective coil, the protective coil was then withdrawn gently. We use the most magnified view, dual-plane approach simultaneously to observe the stability of embolization coil. The embolization coil would be detached without any evidence of coil motion or vibration. The new method could provide the physiological protective method, without leaving any protective device such as stent within the parent artery.
Aneurysm
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Arteries
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Humans
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Intracranial Aneurysm
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Neck
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Parents
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Protective Devices
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Stents
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Vibration
2.Capsaicin-Sensitive Sensory Nerves Indirectly Modulate Motor Function of the Urinary Bladder.
Hsi Hsien CHANG ; Shang Jen CHANG ; Cheng Hsing HSIEH ; Chun Kai HSU ; Stephen Shei Dei YANG
International Neurourology Journal 2018;22(2):83-89
PURPOSE: The urinary bladder (UB) is innervated by both sensory and autonomic nerves. Recent studies have shown that sensory neuropeptides induced contractions in the detrusor muscle. Therefore, in a mouse model, we investigated the presence of interactions between the submucosal sensory nerves and the autonomic nerves that regulate the motor function of the detrusor muscle. METHODS: UB samples from male C57BL/6 mice were isolated, cut into strips, and mounted in an organ bath. Dose-response curves to norepinephrine and phenylephrine were studied in UB strips with and without mucosa, and the effects of preincubation with a receptor antagonist and various drugs on relaxation were also studied using tissue bath myography. RESULTS: Phenylephrine-induced relaxation of the UB strips showed concentration-related effects. This relaxation appeared in both mucosa-intact and mucosa-denuded UB strips, and was significantly inhibited by lidocaine, silodosin, and guanethidine (an adrenergic neuronal blocker). Meanwhile, phenylephrine-induced relaxation was inhibited by pretreatment with propranolol and calcitonin gene-related peptide (CGRP)–depletory capsaicin in UB strips with and without mucosa. CONCLUSIONS: The present study suggests that phenylephrine activates the α-1A adrenergic receptor (AR) of the sensory nerve, and then activates capsaicin-sensitive sensory nerves to release an unknown substance that facilitates the release of norepinephrine from adrenergic nerves. Subsequently, norepinephrine stimulates β-ARs in the detrusor muscle in mice, leading to neurogenic relaxation of the UB. Further animal and human studies are required to prove this concept and to validate its clinical usefulness.
Adrenergic Neurons
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Animals
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Autonomic Pathways
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Baths
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Calcitonin Gene-Related Peptide
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Capsaicin
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Guanethidine
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Humans
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Lidocaine
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Male
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Mice
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Mucous Membrane
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Myography
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Neuropeptides
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Norepinephrine
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Phenylephrine
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Propranolol
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Receptors, Adrenergic
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Receptors, Adrenergic, alpha-1
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Relaxation
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Urinary Bladder*
3.The Effect of Glycemic Status on Kidney Stone Disease in Patients with Prediabetes.
Tzu Hsien LIEN ; Jin Shang WU ; Yi Ching YANG ; Zih Jie SUN ; Chih Jen CHANG
Diabetes & Metabolism Journal 2016;40(2):161-166
BACKGROUND: While the evidence supporting a positive association between diabetes mellitus and kidney stone disease (KSD) is solid, studies examining the association between impaired fasting glucose (IFG) and KSD show inconsistent results. Currently, there are no studies examining the relationship between impaired glucose tolerance (IGT) and KSD. The objective of this study is to investigate the effects of different glycemic statuses on KSD. The results may help to motivate patients with diabetes to conform to treatment regimens. METHODS: We conducted a cross sectional study of a population that underwent health check-ups between January 2000 and August 2009 at the Health Evaluation Center of National Cheng Kung University Hospital. A total of 14,186 subjects were enrolled. The following categories of glycemic status were used according to the criteria of the 2009 American Diabetes Association: normal glucose tolerance, isolated IGT, isolated IFG, combined IFG/IGT, and diabetes. The existence of KSD was evaluated using renal ultrasonography, and the presence of any hyperechoic structures causing acoustic shadowing was considered to be indicative of KSD. RESULTS: The prevalence of KSD was 7.4% (712/9,621), 9.3% (163/1,755), 10.8% (78/719), 12.0% (66/548), and 11.3% (174/1,543) in subjects with NGT, isolated IGT, isolated IFG, combined IFG/IGT, and diabetes, respectively. Isolated IFG, combined IFG/IGT, and diabetes were associated with KSD after adjusting for other clinical variables, but isolated IGT was not. Age (41 to 64 years vs. ≤40 years, ≥65 years vs. ≤40 years), male gender, hypertension, and hyperuricemia were also independently associated with KSD. CONCLUSION: Isolated IFG, combined IFG/IGT, and diabetes, but not isolated IGT, were associated with a higher risk of KSD.
Acoustics
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Diabetes Mellitus
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Fasting
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Glucose
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Glucose Intolerance
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Humans
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Hypertension
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Hyperuricemia
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Kidney Calculi*
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Kidney*
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Male
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Prediabetic State*
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Prevalence
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Shadowing (Histology)
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Ultrasonography
4.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.