Institute of Undersea and Hyperbaric Medicine

Taipei, Taiwan

Institute of Undersea and Hyperbaric Medicine

Taipei, Taiwan
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Wang K.-C.,Chin Shin Rehabilitation Medical Center | Wang K.-C.,Graduate Institute of Medical science | Wang S.-J.,Taipei Veterans General Hospital | Wang S.-J.,National Yang Ming University | And 5 more authors.
Journal of Clinical Neuroscience | Year: 2011

Neuromyelitis optica (NMO) is an uncommon idiopathic demyelinating disease of the central nervous system and is sometimes unresponsive to steroid treatment as compared to multiple sclerosis (MS). There are only a few reports of plasma exchange (PE) as an effective rescue treatment when high-dose steroid therapy fails in exacerbations of NMO. Thus, we aimed to evaluate the efficacy of PE for acute attacks of NMO that failed to respond to high-dose steroid therapy. A retrospective review and clinical follow-up were conducted in two hospitals from January 2001 to January 2008. We recruited patients with NMO who had failed to respond to high-dose steroid treatment, and who then received PE during an acute relapse. We evaluated a global functional assessment of the change in the neurological condition, and the Expanded Disability Status Scale (EDSS) score. All nine patients were middle-aged women (mean age: 48.7 years old), five of whom tested positive for anti-aquaporin (AQP)-4 antibodies in the study. The patients were severely disabled at the initiation of PE (median EDSS score, 8.7; range, 8.5-9.0). Improvement occurred early in the course of PE. At the 2-month post-PE follow-up, eight of nine patients had improved to their pre-attack condition. This study highlights the potential role of PE as a rescue therapy in the management of steroid-unresponsive acute attacks of NMO, especially in patients with auto-antibodies against AQP-4. © 2010 Elsevier Ltd. All rights reserved.

Tzeng D.-S.,Kaohsiung Armed Forces Hospital | Tzeng D.-S.,Institute of Undersea and Hyperbaric Medicine | Chung W.-C.,Fooyn General Hospital | Lin C.-H.,Kaohsiung Armed Forces Hospital | Yang C.-Y.,Kaohsiung Medical University
BMC Health Services Research | Year: 2012

Background: Taiwans National Defense Bureau has been merging its hospitals and adjusting hospital accreditation levels since the beginning of 2006. These changes have introduced many stressors to the healthcare workers in these hospitals. This study investigates the association between job stress, psychological morbidity and quality of life in healthcare workers in three military hospitals. Methods. We posted surveys to 1269 healthcare workers in three military hospitals located in southern Taiwan. The surveys included the General Health Questionnaire (GHQ), the World Health Organization Quality of Life Questionnaire (WHOQOL-BREF), and the Effort-Reward Imbalance (ERI) Questionnaire. High effort-reward (ER) ratio and overcommitment were defined when scores fell into the upper tertile of the total distribution. Results: The survey was completed by 791 healthcare workers. On average, women reported a higher ERI than men. High ERI was associated with younger age, higher psychological morbidity, and poor physical and psychological QOL domains in this population. High ER ratio and high overcommitment were associated with psychological morbidity and poor QOL in both sexes. However, high ER ratio was not significantly associated with the social QOL domain in either sexes or the physical QOL domain in males. Conclusions: There was a clear association between ERI and QOL in the healthcare workers in the military hospitals under reorganization and accreditation in this study. We found ER ratio and overcommitment to be suitable indicators of job stress. © 2012 Tzeng et al.; licensee BioMed Central Ltd.

Chu S.-J.,Tri Service General Hospital | Chu S.-J.,Taoyuan Armed Forces General Hospital | Huang K.-L.,Institute of Undersea and Hyperbaric Medicine | Wu S.-Y.,Institute of Undersea and Hyperbaric Medicine | And 4 more authors.
Inflammation | Year: 2013

Systemic administration of perfluorocarbons (PFCs) reportedly attenuates acute lung injury induced by acid aspiration and phorbol myristate acetate. However, the effects of PFCs on ischemia-reperfusion (IR)-induced lung injury have not been investigated. Typical acute lung injury was induced in rats by 60 min of ischemia and 60 min of reperfusion in isolated and perfused rat lung model. Rat lungs were randomly assigned to receive PBS (control), 1 % FC-77, IR only, or IR with different doses of FC-77 (0.1 %, 0.5 %, or 1 %). Subsequently, bronchoalveolar lavage fluid (BALF), perfusate, and lung tissues were collected to evaluate the degree of lung injury. IR caused a significant increase in the following parameters: pulmonary arterial pressure, capillary filtration coefficient, lung weight gain, lung weight/body weight ratio, wet/dry lung weight ratio, and protein concentration in BALF. TNF-α and cytokine-induced neutrophil chemoattractant-1 concentrations in perfusate samples and MDA concentration and MPO activities in lung tissues were also significantly increased. Histopathology showed increased septal thickness and neutrophil infiltration in the lung tissues. Furthermore, NF-κB activity was significantly increased in the lungs. However, pretreatment with 1 % FC-77 prior to IR significantly attenuated the increases in these parameters. In conclusion, our results suggest that systemic FC-77 administration had a protective effect on IR-induced acute lung injury. These protective mechanisms may have been mediated by the inhibition of NF-κB activation and attenuation of subsequent inflammatory response. © 2013 Springer Science+Business Media New York.

Chung W.-C.,Fooyn General Hospital | Yang C.-Y.,Kaohsiung Medical University | Tzeng D.-S.,Institute of Undersea and Hyperbaric Medicine
Asian Journal of Psychiatry | Year: 2012

Background: To determine the relative efficacy of acupuncture and zolpidem in the treatment of primary insomnia, we administered a sleep quality scale to thirty-three patients with primary insomnia randomly chosen to receive one of the two therapies at a psychosomatic clinic. Methods: A study in the psychosomatic clinic at a teaching hospital in southern Taiwan from November 2007 to November 2008. The 19 patients in acupuncture group underwent one acupuncture session a week. The 14 patients in the control group took zolpidem 1# (10. mg) every night. Members of both groups returned to our clinic once a week for four weeks. The main outcome measure was the Pittsburgh Sleep Quality Index (PSQI). Results: Both groups were found to have improved significantly. Using generalized estimating equation analysis to test the variance with group and time as factors, we found both groups improved over time at a similar rate (p=0.79). In regression analysis, setting the fourth total PSQI score to zero, the baseline PSQI score was 4.13 (p<0.001), the second score 1.32 (p=0.005), and the third 1.49 (p=0.03); men had a higher PSQI score 1.56 than women (p=0.02); the increasing age of one year would have lower PSQI score 0.08 (p<0.001) and increasing educational level of one year which would decrease PSQI score 0.25 (p=0.007). Conclusions: Acupuncture might be used as an alternative strategy compared to zolpidem for the treatment of primary insomnia. © 2011 Elsevier B.V.

PubMed | Tri Service General Hospital, Foundation Medicine, Li Shin Hospital and Institute of Undersea and Hyperbaric Medicine
Type: Journal Article | Journal: PloS one | Year: 2016

Ischemia-reperfusion (IR)-induced acute lung injury (ALI) is implicated in several clinical conditions like lung transplantation, acute pulmonary embolism after thrombolytic therapy, re-expansion of collapsed lung from pneumothorax or pleural effusion, cardiopulmonary bypass and etc. Because mortality remains high despite advanced medical care, prevention and treatment are important clinical issues for IR-induced ALI. Vascular endothelial growth factor (VEGF) has a controversial role in ALI. We therefore conducted this study to determine the effects of anti-VEGF antibody in IR-induced ALI. In the current study, the IR-induced ALI was conducted in a rat model of isolated-perfused lung in situ in the chest. The animals were divided into the control, control + preconditioning anti-VEGF antibody (bevacizumab, 5mg/kg), IR, IR + preconditioning anti-VEGF antibody (1mg/kg), IR+ preconditioning anti-VEGF antibody (5mg/kg) and IR+ post-IR anti-VEGF antibody (5mg/kg) group. There were eight adult male Sprague-Dawley rats in each group. The IR caused significant pulmonary micro-vascular hyper-permeability, pulmonary edema, neutrophilic infiltration in lung tissues, increased tumor necrosis factor-, and total protein concentrations in bronchoalveolar lavage fluid. VEGF and extracellular signal-regulated kinase (ERK) were increased in IR-induced ALI. Administration of preconditioning anti-VEGF antibody significantly suppressed the VEGF and ERK expressions and attenuated the IR-induced lung injury. This study demonstrates the important role of VEGF in early IR-induced ALI. The beneficial effects of preconditioning anti-VEGF antibody in IR-induced ALI include the attenuation of lung injury, pro-inflammatory cytokines, and neutrophilic infiltration into the lung tissues.

Lin Y.-S.,National Yang Ming University | Lin Y.-S.,Academia Sinica, Taiwan | Wang C.-H.,Tri Service General Hospital | Wang C.-H.,Institute of Microbiology and Immunology | And 3 more authors.
Aging | Year: 2011

Hearing impairment following cochlear damage due to noise trauma, ototoxicity caused by aminoglycoside antibiotics, or age-related cochlear degeneration was linked to a common pathogenesis involving the formation of reactive oxygen species (ROS). Cochleae are more vulnerable to oxidative stress than other organs because of the high metabolic demands of their mechanosensory hair cells in response to sound stimulation. We recently showed that patients and mice with Huntington's disease (HD) have hearing impairment and that the dysregulated phosphocreatine (PCr)-creatine kinase (CK) system may account for this auditory dysfunction. Given the importance of noninvasive biomarkers and the easy access of hearing tests, the symptom of hearing loss in HD patients may serve as a useful clinical indicator of disease onset and progression of HD. We also showed that dietary creatine supplementation rescued the impaired PCr-CK system and improved the expression of cochlear brain-type creatine kinase (CKB) in HD mice, thereby restoring their hearing. Because creatine is an antioxidant, we postulated that creatine might enhance expression of CKB by reducing oxidative stress. In addition to HD-related hearing impairment, inferior CKB expression and/or an impaired PCr-CK system may also play an important role in other hearing impairments caused by elevated levels of ROS. Most importantly, dietary supplements may be beneficial to patients with these hearing deficiencies. © Lin et al.

Lin Y.-Y.,Tri Service General Hospital | Kao C.-H.,Tri Service General Hospital | Wang C.-H.,Tri Service General Hospital | Wang C.-H.,Institute of Microbiology and Immunology | Wang C.-H.,Institute of Undersea and Hyperbaric Medicine
Laryngoscope | Year: 2011

Varicella zoster virus (VZV) infection of the head and neck region may present with various clinical symptoms, involving different entities and different routes of viral spreading. We present a case of VZV infection of the pharynx and larynx with multiple cranial nerve (CN) neuropathies (CN VII, VIII, IX, and X) of a 52-year-old woman who complained of the sudden onset of hoarseness, odynophagia, dysphagia, and hearing loss in the left ear, followed by left-side facial weakness lasting for 1 week. Endoscopic examination revealed multiple mucosal erosions over the oropharynx, with extension upward to the nasopharynx and downward to the mucosa overlying the epiglottis, arytenoid, and vocal cord. All of these lesions tended to lateralize to the left side, suggesting a VZV infection diagnosis; this was confirmed by polymerase chain reaction on eruptional exudates, as well as serologic examination. Copyright © 2011 The American Laryngological, Rhinological, and Otological Society, Inc.

Peng C.-K.,Graduate Institute of Medical science | Peng C.-K.,Tri Service General Hospital | Huang K.-L.,Institute of Undersea and Hyperbaric Medicine | Wu C.-P.,Graduate Institute of Medical science | And 6 more authors.
Pulmonary Pharmacology and Therapeutics | Year: 2011

Glutamine has been used to treat a number of diseases via modulating the inflammatory response. The purpose of this study is to investigate whether glutamine has a beneficial effect in ischemia-reperfusion (IR) induced acute lung injury in an isolated rat lung model. Typical acute lung injury in rats was successfully induced by 60 min of ischemia and 60 min of reperfusion. At the end of experiment, bronchoalveolar lavage fluid (BALF), perfusate and lung tissues were collected to evaluate the degree of lung injury. Glutamine (20 mM) was administrated before ischemia or after ischemia. IR caused a significant increase in the capillary filtration coefficient; lung weight gain; lung weight to body weight ratio; wet to dry weight ratio; pulmonary arterial pressure; and protein concentration and lactate dehydrogenase level in BALF. Tumor necrosis factor-α and cytokine induced neutrophil chemoattractant-1 in perfusate, and malondialdehyde levels, carbonyl content and myeloperoxidase activities in lung tissue were also significantly increased. In addition, the lung tissues showed increased septal thickness and neutrophil infiltration. Furthermore, NF-κB activity and degradation of IκB-α were significantly increased in the lungs. Treatment with glutamine before ischemia or after ischemia significantly decreased the increase in these parameters. Our study showed that glutamine treatment decreased IR-induced acute lung injury. The protective mechanism may be due to the inhibition of NF-κB activation and the attenuation of oxidative stress. © 2010 Elsevier Ltd.

Lin G.-J.,National Defense Medical Center | Huang S.-H.,Tri Service General Hospital | Chen S.-J.,Graduate Institute of Medical science | Chen S.-J.,Tri Service General Hospital | And 6 more authors.
International Journal of Molecular Sciences | Year: 2013

Melatonin is the major secretory product of the pineal gland during the night and has multiple activities including the regulation of circadian and seasonal rhythms, and antioxidant and anti-inflammatory effects. It also possesses the ability to modulate immune responses by regulation of the T helper 1/2 balance and cytokine production. Autoimmune diseases, which result from the activation of immune cells by autoantigens released from normal tissues, affect around 5% of the population. Activation of autoantigen-specific immune cells leads to subsequent damage of target tissues by these activated cells. Melatonin therapy has been investigated in several animal models of autoimmune disease, where it has a beneficial effect in a number of models excepting rheumatoid arthritis, and has been evaluated in clinical autoimmune diseases including rheumatoid arthritis and ulcerative colitis. This review summarizes and highlights the role and the modulatory effects of melatonin in several inflammatory autoimmune diseases including multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, type 1 diabetes mellitus, and inflammatory bowel disease. © 2013 by the authors; licensee MDPI, Basel, Switzerland.

PubMed | Tri Service General Hospital, Tzu Chi University, Li Shin Hospital and Institute of Undersea and Hyperbaric Medicine
Type: Journal Article | Journal: The Journal of thoracic and cardiovascular surgery | Year: 2016

Ischemia-reperfusion acute lung injury is characterized by increased vascular permeability, lung edema, and neutrophil sequestration. Ischemia-reperfusion acute lung injury occurs in lung transplantation and other major surgical procedures. Effective regulation of alveolar fluid balance is critical for pulmonary edema. Sodium-potassium-chloride co-transporter regulates alveolar fluid and is associated with inflammation. We hypothesized that sodium-potassium-chloride co-transporter is important in ischemia-reperfusion acute lung injury. Bumetanide, a sodium-potassium-chloride co-transporter inhibitor, is used to treat pulmonary edema clinically. We studied the effect of bumetanide in ischemia-reperfusion acute lung injury.Isolated perfusion of mouse lungs in situ was performed. The main pulmonary artery and left atrium were catheterized for lung perfusion and effluent collection for recirculation, respectively, with perfusate consisting of 1mL blood and 9mL physiologic solution. Ischemia-reperfusion was induced by 120minutes of ischemia (no ventilation or perfusion) and reperfused for 60minutes. Wild-type, SPAK knockout (SPAKIn wild-type mice, ischemia-reperfusion caused lung edema (wet/dry weight 6.300.36) and hyperpermeability (microvascular permeability, 0.290.04), neutrophil sequestration (255.055.8cells/high-power field), increased proinflammatory cytokines, and nuclear factor-B activation (1.330.13). Acute lung injury was more severe in WNK4 mice with more lung edema, permeability, neutrophil sequestration, and nuclear factor-B activation. Severity of acute lung injury was attenuated in SPAKFunctional reduction of sodium-potassium-chloride co-transporter by genetic or pharmacologic treatment to inhibit sodium-potassium-chloride co-transporter resulted in lower severity of acute lung injury induced by ischemia-reperfusion. Sodium-potassium-chloride co-transporter may present a promising target for therapeutic interventions in a clinical setting.

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