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Effect of leg weight shifting on muscle activation of the trunk and lower extremity during trunk flexion and extension performance
Su-young Shim, Yi-jung Chung 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2018, 제 7권 제 1호 8 41-47 (7 pages)
of performing three different toe touch (TT) task condition on the activities of four different muscles using surface electromyography (sEMG) in healthy young adults. Design: Cross-sectional study. Methods: A total of 20 healthy young adults (6 males, 14 females) voluntarily participated in this study. All subject randomly performed three different TT task conditions as follows: general toe-touch (GTT) task, one side toe touch (TT) task during weight bearing, and one side foward toe touch (FTT)... -
The reliability of dual rehabilitative ultrasound imaging measurements for muscle co-activation
Joo-hee Hahn, Hyun-Geun Ha, Hwang-Jae Lee, Seung-yeop Lim, Wan-hee Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 3호 8 152-157 (6 pages)
Objective: The aim of this study was to determine the intra-rater and inter-rater reliability of the dual rehabilitative ultrasound imaging (D-RUSI) when simultaneously measuring muscle thickness changes at rest and during co-contraction of the biceps brachii (BB) and triceps brachii (TB). Design: Cross-sectional study. Methods: This study included 36 healthy participants (23 men, 13 women). The participants sat on a chair in a comfortable position with a cushion placed under their elbow to... -
Effect of backward walking training using an underwater treadmill on muscle strength, proprioception and gait ability in persons with stroke
Dong-Min Kum, Won-Seob Shin 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 3호 3 120-126 (7 pages)
Objective: The purpose of this study was to investigate the effects of backward treadmill gait training between underwater and ground environments on strength, proprioception, and walking ability in persons with stroke. Design: Randomized control trial. Methods: Twenty eight subjects participated in the study in which they were randomly assigned to either the underwater backward treadmill training (UBTT) group (n=13) or the BTT group (n=15). In both groups, forward gait training was performed... -
The effect of hip joint strengthening exercise using proprioceptive neuromuscular facilitation on balance, sit to stand and walking ability in a person with traumatic brain injury
Du Kyo Jung, Yi-jung Chung 물리치료재활과학회 Physical Therapy Rehabilitation Science 9 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 2호 8 96-104 (9 pages)
Objective: The purpose of this study was to investigate the effect of the hip joint strengthening exercises using proprioceptive neuromuscular facilitation (PNF) on the clinical symptoms and the treatment effects in balance, sit to stand, and gait abilities in patients with TBI. Design: A single case study. Methods: A 13-year-old adolescent with quadriplegia and hip joint control impairment participated in this four-week training intervention. The patient, diagnosed with TBI, wastreated with hip... -
The effects of performing squats on an inclined board on thigh muscle activation
Min-kwon Cho, Ju-Yeun Kang, Ji-Hoon Oh, Jun-Gu Wu, Eun-Byul Choi, Si-Eun Park, Matthew Choi 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 1호 7 39-44 (6 pages)
Objective: The purpose of this study is to show the effectiveness of performing squat exercises at various angles to show the maximum muscle activity of the Vastus Medialis Oblique (VMO) and Biceps femoris (BF). Design: Cross-sectional study. Methods: A total of seventeen healthy young adults (8 males and 9 females) voluntarily participated in the study. All subjects randomly performed three different squat variations as follows: A squat performed with the ankle joint at 0° of incline, a squat... -
Effects of performing hip abduction and adduction during bridging exercise on trunk and lower extremity muscle activity in healthy individuals
Joo Young Hwang, Woo Young Ahn, Hyo Jae Kim, Je Hyun Woo, Woo Jin Choi, Jae Wook Park, Mi Young Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 1호 3 14-19 (6 pages)
blue Theraband (Hygenic Corp., USA), and isometric hip adduction (IHAD) with a Swiss ball (Hygenic Corp.). The muscle activities of bilateral erector spinae (ES), gluteus maximus (GM), biceps femoris (BF), and external oblique (EO) muscles during the bridge exercises were measured using sEMG. Subjects performed each of the three bridge conditions three times in random order and mean values were obtained. Results: For bilateral ES and BF, there was a significant increase in muscle activity in the... -
Changes in muscle activity of the abdominal muscles according to exercise method and speed during dead bug exercise
Byeong-Gwon Yun, Seung-Joo Lee, Hyun-Jeong So, Won-Seob Shin 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 1호 1 1-6 (6 pages)
maximal voluntary isometric contraction on the rectus abdominis (RA), external oblique (EO), and internal oblique (IO). Results: EMG activation of the RA, EO and IO muscles was significantly greater at the higher speed (p<0.05). There was a significant increase in abdominal muscle activity during the dead-bug exercise performed with both the upper and lower extremities compared to that with only the upper extremity or the lower extremities (p<0.05). Conclusions: These findings demonstrate that... -
Changes of abdominal muscle thickness during stable and unstable surface bridging exercise in young people
Tae Hoon Kim, Joo-hee Hahn, Ju-Ri Jeong, Chang-joo Lee, You Jin Kim, Sung Min Choi, Da Young Jeon, Jin Hwa Lee, In-Hyuk Lim, Wan-Hee Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 4호 8 210-214 (5 pages)
the SG (p<0.05). But within the UG, no significant contraction difference was shown. There was no significant contraction difference between the surface group and the unstable SG at 60° condition and at 90° condition in all measured muscles. Conclusions: The contraction difference is different for each muscle during bridge exercise with knee flexion 60° and bridging exercise with knee flexion 90°. Muscle contraction difference is generally large when exercised on an unstable surface than a... -
Reliability and validity of a personal computer based muscle viewer for measuring upper trapezius and transverses abdominis muscle thickness
Ju-Ri Jeong, Ju Hee Han, Ji-Eun Cho, Wan-hee Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 3호 8 155-161 (7 pages)
Objective: This study aimed to investigate the reliability and validity of a personal computer-based muscle viewer (PC-BMW) compared with that of a portable ultrasound (P-US) for measuring upper trapezius (UT) and transversus abdominis (TrA) muscle thickness at rest and during contraction. Design: Observational inter-rater reliability study. Methods: Fifty-five healthy participants (25 men, 30 women) participated in this study. PC-BMW and P-US were randomly measured at the UT and TrA muscles.... -
Effect of flexion degrees in elbow joint on muscle activation of the extensor carpi radialis and biceps brachii muscles in healthy young adults
Gap-Cheol Kim, Su-jin Hwang 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 3호 2 120-124 (5 pages)
is a condition which becomes sore and tender on the lateral side of the elbow joint damaged from overuse and repetitive use of the extensor muscles of the forearm. The purpose of this study was to investigate the effects of flexion degrees in the elbow joint on extensor carpi radialis longus and brevis and biceps brachii muscles in individuals with healthy young adults. The main purpose of this study was to suggest the feasibility of optimal elbow angle during therapeutic eccentric exercise with... -
The effects of performing a one-legged bridge with use of a sling on trunk and gluteal muscle activation
Min-kwon Cho, Jong-woo Bak, Yi-jung Chung 물리치료재활과학회 Physical Therapy Rehabilitation Science 8 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 2호 3 70-77 (8 pages)
the 2 surfaces were measured using surface electromyography. Subjects practiced each of the four bridge condition three times in random order and average values were obtained. Results: On the ipsilateral side, activities of the IO, EO, and ES during SBS was significantly higher than those during BS, SB, and GB (p<0.05). Activities of the IO and EO during SB was significantly higher than those during BS and GB (p<0.05). On the contralateral side, activities of the GM and EO during SB and SBS was... -
A comparison of vital capacity values and respiratory muscles activities on pelvic tilt position
Seo-Young Jang, Su-Young Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2015, 제 4권 제 2호 8 108-114 (7 pages)
from sternocleidomastoid, upper trapezius, external intercostal, rectus abdominis, and external oblique muscles by surface electromyography (EMG) at the same time. EMG values were normalized by maximum muscle contractions (% maximum voluntary isometric contraction). Subjects were to breathe in as much air as possible and then exhale as quickly as possible in both anterior and posterior pelvic tilt positions. To measure lung capacity, inspiration was measured for 5 seconds and expiration was... -
Effects of body weight-supported treadmill training combined with ball-kicking on balance and gait of subacute stroke patients
Ju-chul Cho, Eun-sang Lee, Seung-won Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2015, 제 4권 제 2호 3 73-78 (6 pages)
Objective: This study focused on subacute stroke patients who were asked to kick a ball while walking on a treadmill. The aim of the study was to determine the effect of a body weight-supported treadmill training (BWSTT) combined with ball-kicking on muscle strength, balance, and gait. Design: Single blind, randomized controlled trial. Methods: Twenty stroke patients who volunteered to participate in this study were randomly assigned to either the BWSTT combined with ball-kicking (BWSTT-BK; 10... -
Ultrasound imaging for age-related differences of lower extremity muscle architecture
Min Kyu Kim, Young Jun Ko, Hwang Jae Lee, Hyun Geun Ha, Wan Hee Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2015, 제 4권 제 1호 7 38-43 (6 pages)
Objective: To investigate and compare the size of the rectus femoris (RF), tibialis anterior (TA), and medial gastrocnemius (GMM) using ultrasound (US) imaging in young, elderly, and very elderly groups. Design: Cross sectional study. Methods: This study consisted of 25 young (age 20 years), 24 elderly (age 65-74 years), and 25 very elderly (age 75-90 years) people with no physical dysfunctions. The cross sectional area (CSAs) of the RF and muscle thickness of the TA and GMM were measured at... -
Neuromuscular electrical stimulation improves strength, pain and weight distribution on patients with knee instability post surgery
Yasuyoshi Asakawa, Ji-Hye Jung, Si-Eun Koh 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2014, 제 3권 제 2호 6 112-118 (7 pages)
unilateral quadriceps femoris training with incremental increases in the intensity of isometric contraction over 4 weeks. Outcome measurements were assessed using the digital manual muscle testing, 30-chair stand test (30CST), numeric pain rating scale (NPRS) and weight distribution using the foot analyzer before and after 4 weeks of training. Results: After the 4-week intervention, knee extensor strength increased significantly in the experimental group post intervention (p<0.05), and there was... -
The changes of rectus abdominis muscle thickness according to the angle during active straight leg raise
Hwang Jae Lee, Kil Ho Shin, Sung Mi Byun, Hyeon Seo Jeong, Ji Su Hong, Su Ji Jeong, Wan Hee Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2013, 제 2권 제 1호 8 44-48 (5 pages)
Objective: The purpose of this study was to investigate changes of abdominal muscles thickness according to the angle during the active straight leg raise (ASLR) in young healthy subjects. Design: Cross sectional study. Methods: Twenty-three healthy university students (13 men and 10 women) voluntary participated to the study in S University. The ASLR was performed with the subject lying supine with lower extremities straight on a standard plinth, hands resting on the chest, and elbows on the... -
Effects of sling exercise and McKenzie exercise program on neck disability, pain, muscle strength and range of motion in chronic neck pain
Seung-Cheol Seo, Jin-Young Choi, Min-Young Joo, Je-Hoon Kim, Seul-Ki Chang 물리치료재활과학회 Physical Therapy Rehabilitation Science 9 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2012, 제 1권 제 1호 8 40-48 (9 pages)
Objective: The aim of this study was to compare sling exercise group to McKenzie exercise group in patients with chronic neck pain. Design: Two group pretest-posttest design. Methods: Twenty subjects who have chronic neck pain were randomly divided into sling exercise group (n=10) and McKenzie exercise (n=10). Sling exercise group (n=10) received sling exercise for 30 minutes per day, twice a week over a 4 week period. And the other group were exercised McKenzie exercise (n=8) for 30 minutes per... -
Relationship of trunk muscle atrophy and provocation position in patients with chronic low back pain
Doo Chul Shin, Chang Ho Song 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2012, 제 1권 제 1호 6 28-32 (5 pages)
Objective: The purpose of this study is to compare chronic low back pain patients pain provocation position so as to identify the relevance with lumbar stabilizing muscles atrophy and pain provocation position. Design: Cross-sectional study. Methods: Fifty five chronic low back pain patients were participated in this study. Subjects were eligible for study participation if they were 35-55 years old and had experienced low back pain for more than 3 months. Subjects were questioned about pain and... -
Efficacy of silver ions against Sacbrood virus infection in the Eastern honey bee Apis cerana
Ah-Jin Ahn, Kyu-Sung Ahn, Guk-Hyun Suh, Jin-Hyeong Noh, Young-Ha Kim, Mi-Sun Yoo, Seung-Won Kang, Sung-Shik Shin 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 3호 6 289-295 (7 pages)
Although silver is known to be a broad-spectrum biocidal agent, the effects of this metal against Sacbrood virus have not yet been investigated. In this study, we evaluated the efficacy of silver ions against natural Korean sacbrood virus (KSBV) infection of Apis (A.) cerana. Ten KSBV-infected colonies containing A. cerana with similar strength and activity were selected from an apiary located in Bosung-gun (Korea). Among these, five colonies were randomly assigned to the treatment group that... -
Echocardiographic assessment of coronary artery flow in normal canines and model dogs with myocardial infarction
Nohwon Park, Jaehwan Kim, Miyoung Lee, Soyun Lee, Sunhye Song, Seungjun Lee, Soyoung Kim, Yangwoo Park, Kidong Eom* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 1호 17 149-155 (7 pages)
This study was conducted to evaluate the usefulness of coronary arterial profiles from normal dogs (11 animals) and canines (six dogs) with experimental myocardial infarction (MI) induced by ligation of the left coronary artery (LCA). Blood velocity of the LCA and right coronary artery (RCA) were evaluated following transthoracic pulsed-wave Doppler echocardiography. The LCA was observed as an infundibular shape, located adjacent to the sinus of Valsalva. The RCA appeared as a tubular structure... -
Alteration of nitrergic neuromuscular transmission as a result of acute experimental colitis in rat
Tae-Sik Sung, Jun-Ho La, Tae-Wan Kim, Il-Suk Yang 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 2호 9 143-150 (8 pages)
Nitric oxide (NO) is a non-adrenergic, non-cholinergic neurotransmitter found in the enteric nervous system that plays a role in a variety of enteropathies, including inflammatory bowel disease. Alteration of nitrergic neurons has been reported to be dependent on the manner by which inflammation is caused. However, this observed alteration has not been reported with acetic acid-induced colitis. Therefore, the purpose of the current study was to investigate changes in nitrergic neuromuscular... -
Electroacupuncture ameliorates experimental colitis induced by acetic acid in rat
Jeoung-Woo Kang, Tae-Wan Kim, Jun-Ho La, Tae-Sik Sung, Hyun-Ju Kim, Young-Bae Kwon, Jeum-Yong Kim, Il-Suk Yang 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 3호 2 189-195 (7 pages)
The effect of electroacupuncture (EA) on experimental colitis was investigated in Sprague-Dawley rats. Colitis was induced by intracolonic instillation of 4% acetic acid. EA (2 Hz, 0.05 ms, 2 V for 20 min) was applied to bilateral Hoku (LI-4) and Zusanli (ST-36) on 12 hrs and 36 hrs after induction of colitis. EA-treatment significantly reduced the macroscopic damage and the myeloperoxidase activity of colonic samples at 3 days post-induction of colitis. Colitic colon showed a decreased in vitro... -
Mechanism of UV light-induced photorelaxation in isolated rat aorta
Joo-heon Kim, Yonggeun Hong, Cheol-soo Shim 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2000, 제 1권 제 2호 4 81-86 (6 pages)
Isolated rat thoracic aorta which is pharmacologically precontracted by phenylephrine induces photorelaxation when exposed to long wave length UV-light. The aim of the present study was to characterize the mechanism of UV-light induced by photorelaxation in the rat aorta. 1. UV light relaxed both endothelium-intact and -denuded rat aortic rings contracted by phenylephrine. The magnitude of relaxation on UV light was dependent on the exposure time and slightly greatly in endothelium-denuded rings... -
Isolation and characterization of fowl adenovirus serotype 4 from chickens with hydropericardium syndrome in Korea
Hong Su Park , Il Soo Lim , Sang Kyu Kim , Toh Kyung Kim , Sang Geon Yeo 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 8 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2011, 제 51권 제 3호 5 209-216 (8 pages)
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High fat diet confers vascular hyper-contractility against angiotensin II through upregulation of MLCK and CPI-17
JeeInKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.1 12 99-106 (8 pages)
Obesity is a critical risk factor for the hypertension. Although angiotensin II (Ang II) in obese individuals is known to be upregulated in obesity-induced hypertension, direct evidence that explains the underlying mechanism for increased vascular tone and consequent increase in blood pressure (BP) is largely unknown. The purpose of this study is to investigate the novel mechanism underlying Ang II-induced hyper-contractility and hypertension in obese rats. Eight-week old male Sprague-Dawley... -
Effects of high glucose with or without other metabolic substrates on alpha-adrenergic contractions in rat mesenteric and femoral arteries
RanyVorn, HaeYoungYoo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.1 11 91-97 (7 pages)
Hyperglycemia is associated with an increased risk of cardiovascular diseases. It has been demonstrated that chronic exposure to high glucose impaired endothelial functions. However, specific effects of short-term exposure to high glucose on vascular reactivity are controversial. Moreover, the combined effects of other metabolic substrates such as free fatty acids (FFA) on vascular reactivity remain poorly understood. Here we investigate the effects of short-term exposure to high glucose with or... -
Myometrial relaxation of mice via expression of two pore domain acid sensitive K+ (TASK-2) channels
Kyu-SangKyeong, SeungHwaHong, YoungChulKim, *, WoongChoi, SunChulMyung, MooYeolLee, RaYoungYou, ChanHyungKim, SoYeonKwon, HikaruSuzuki, Yeo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.5 13 547-556 (10 pages)
domain acid‐sensing K+ channels (TASK-2) might be one of the candidates for the regulation of uterine circular smooth muscles in mice. In this study, we tried to show the mechanisms of relaxation via TASK-2 channels in marine myometrium. Isometric contraction measurements and patch clamp technique were used to verify TASK conductance in murine myometrium. Western blot and immunehistochemical study under confocal microscopy were used to investigate molecular identity of TASK channel. In... -
Histone deacetylase inhibitor, CG200745, attenuates cardiac hypertrophy and fibrosis in DOCA-induced hypertensive rats
EunjoLee, Min-jiSong, Hae-AhmLee, Seol-HeeKang, MinaKim, EunKyoungYang, DoYoungLee, SeongguRo, JoongMyungCho, InkyeomKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.5 5 477-485 (9 pages)
CG200745 is a novel inhibitor of histone deacetylases (HDACs), initially developed for treatment of various hematological and solid cancers. Because it is water-soluble, it can be administered orally. We hypothesized that the HDAC inhibitor, CG200745, attenuates cardiac hypertrophy and fibrosis in deoxycorticosterone acetate (DOCA)-induced hypertensive rats. For establishment of hypertension, 40 mg/kg of DOCA was subcutaneously injected four times weekly into Sprague-Dawley rats. All the rats... -
Low Intensity Resistance Exercise Training with Blood Flow Restriction: Insight into Cardiovascular Function, and Skeletal Muscle Hypertrophy in Humans
Song-YoungPark, YiSubKwak, rewHarveson, JoshuaCWeavil, KookE.Seo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.3 1 191-196 (6 pages)
Attenuated functional exercise capacity in elderly and diseased populations is a common problem, and stems primarily from physical inactivity. Decreased function and exercise capacity can be restored by maintaining muscular strength and mass, which are key factors in an independent and healthy life. Resistance exercise has been used to prevent muscle loss and improve muscular strength and mass. However, the intensities necessary for traditional resistance training to increase muscular strength... -
Suppression of Peripheral Sympathetic Activity Underlies Protease-Activated Receptor 2-Mediated Hypotension
Young-HwanKim, Duck-SunAhn, Ji-HyunJoeng, SeungsooChung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 7 489-496 (8 pages)
Protease-activated receptor (PAR)-2 is expressed in endothelial cells and vascular smooth muscle cells. It plays a crucial role in regulating blood pressure via the modulation of peripheral vascular tone. Although some reports have suggested involvement of a neurogenic mechanism in PAR-2-induced hypotension, the accurate mechanism remains to be elucidated. To examine this possibility, we investigated the effect of PAR-2 activation on smooth muscle contraction evoked by electrical field... -
Aortic Remodelling in Chronic Nicotine-Administered Rat
SatirahZainalabidin, SitiBalkisBudin, AnRamalingam, YiChengLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 9 411-418 (8 pages)
Vascular remodelling is an adaptive mechanism, which counteracts pressure changes in blood circulation. Nicotine content in cigarette increases the risk of hypertension. The exact relationship between nicotine and vascular remodelling still remain unknown. Current study was aimed to determine the effect of clinically relevant dosage of nicotine (equivalent to light smoker) on aortic reactivity, oxidative stress markers and histomorphological changes. Twelve age-matched male Sprague-Dawley rats... -
Disappearance of Hypoxic Pulmonary Vasoconstriction and O2-Sen-sitive Nonselective Cationic Current in Arterial Myocytes of Rats Under Ambient Hypoxia
HaeYoungYoo, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.5 13 463-468 (6 pages)
Acute hypoxia induces contraction of pulmonary artery (PA) to protect ventilation/perfusion mismatch in lungs. As for the cellular mechanism of hypoxic pulmonary vasoconstriction (HPV), hypoxic inhibition of voltage-gated K+ channel (Kv) in PA smooth muscle cell (PASMC) has been suggested. In addition, our recent study showed that thromboxane A2 (TXA2) and hypoxia-activated nonselective cation channel (INSC) is also essential for HPV. However, it is not well understood whether HPV is maintained... -
Mechanism of Relaxation Via TASK-2 Channels in Uterine Circular Muscle of Mouse
SeungHwaHong, RohyunSung, YoungChulKim, HikaruSuzuki, WoongChoi, YeonJinPark, IllWoonJi, ChanHyungKim, SunChulMyung6, MooYeolLee, TongMook 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.4 14 359-365 (7 pages)
Plasma pH can be altered during pregnancy and at labor. Membrane excitability of smooth muscle including uterine muscle is suppressed by the activation of K＋ channels. Because contractility of uterine muscle is regulated by extracellular pH and humoral factors, K＋ conductance could be connected to factors regulating uterine contractility during pregnancy. Here, we showed that TASK-2 inhibitors such as quinidine, lidocaine, and extracellular acidosis produced contraction in uterine circular... -
Requirement of Pretone by Thromboxane A2 for Hypoxic Pulmonary Vasoconstriction in Precision-cut Lung Slices of Rat
SuJungPark, HaeYoungYoo, HyeJinKim, , , JinKyoungKim, Yin-HuaZhang, SungJoonKim, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.1 9 59-64 (6 pages)
Hypoxic pulmonary vasoconstriction (HPV) is physiologically important response for preventing mismatching between ventilation and perfusion in lungs. The HPV of isolated pulmonary arteries (HPV-PA) usually require a partial pretone by thromboxane agonist (U46619). Because the HPV of ventilated/perfused lungs (HPV-lung) can be triggered without pretone conditioning, we suspected that a putative tissue factor might be responsible for the pretone of HPV. Here we investigated whether HPV can be also... -
Nitric Oxide-mediated Relaxation by High K＋ in Human Gastric Longitudinal Smooth Muscle
YoungChulKim, WoongChoi, Hyo-YoungYun, RohyunSung, RaYoungYoo, Seon-MeePark, SeiJinYun, Mi-JungKim, Young-JinSong, Wen-XieXu, SangJinLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.6 12 405-414 (10 pages)
of circular and longitudinal smooth muscle from human gastric corpus using isometric contraction. Contraction from circular and longitudinal muscle stripes of gastric corpus greater curvature and lesser curvature were compared. Circular smooth muscle from corpus greater curvature showed high K＋ (50 mM)-induced tonic contraction. On the contrary, however, longitudinal smooth muscle strips showed high K＋ (50 mM)-induced sustained relaxation. To find out the reason for the discrepancy we tested... -
A Carbohydrate Fraction, AIP1, from Artemisia Iwayomogi Reduces the Action Potential Duration by Activation of Rapidly Activating Delayed Rectifier K＋ Channels in Rabbit Ventricular Myocytes
WonSunPark, YounKyoungSon, EunAKo, SeongWooChoi, NariKim, Tae-HoonChoi, HyunJooYoun, Su-HyunJo, DaHyeHong, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.3 1 119-125 (7 pages)
We investigated the effects of a hot-water extract of Artemisia iwayomogi, a plant belonging to family Compositae, on cardiac ventricular delayed rectifier K＋ current (IK) using the patch clamp technique. The carbohydrate fraction AIP1 dose-dependently increased the heart rate with an apparent EC50 value of 56.1±5.5Ռg/ml. Application of AIP1 reduced the action potential duration (APD) in concentration-dependent fashion by activating IK without significantly altering the resting membrane... -
Calcium Sensitization Induced by Sodium Fluoride in Permeabilized Rat Mesenteric Arteries
EnyueYang, JoonYongCho, UyDongSohn, InKyeomKim, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.1 8 51-57 (7 pages)
It was hypothesized that NaF induces calcium sensitization in Ca2＋-controlled solution in permeabilized rat mesenteric arteries. Rat mesenteric arteries were permeabilized with Ղ- escin and subjected to tension measurement. NaF potentiated the concentration-response curves to Ca2＋ (decreased EC50 and increased Emax). Cumulative addition of NaF (4.0, 8.0 and 16 mM) also increased vascular tension in Ca2＋-controlled solution at pCa 7.0 or pCa 6.5, but not at pCa 8.0. NaF-induced... -
Relaxant Effect of Spermidine on Acethylcholine and High K+- induced Gastric Contractions of Guinea-Pig
YoungChulKim, JaeHoonSim, Woong-Choi, ChanHyungKim, Ra-YoungYou, Wen-XieXu, SangJinLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.2 4 59-64 (6 pages)
In our previous study, we found that spermine and putrescine inhibited spontaneous and acetylcholine (ACh)-induced contractions of guinea-pig stomach via inhibition of L-type voltage- dependent calcium current (VDCCL). In this study, we also studied the effect of spermidine on mechanical contractions and calcium channel current (IBa), and then compared its effects to those by spermine and putrescine. Spermidine inhibited spontaneous contraction of the gastric smooth muscle in a... -
Characterization of ETB Receptor-mediated Relaxation in Precontracted Mesenteric Artery from Streptozotocin-induced Diabetic Rats
YangKiEom, KoanHoiKim, ByungYongRhim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.5 8 305-313 (9 pages)
Diabetes mellitus is associated with vascular complications, including an impairment of vascular function and alterations in the reactivity of blood vessels to vasoactive substances in various vasculature. In the present study, the authors have observed endothelin-B (ETB) receptor agonist-induced relaxation in precontracted mesenteric arterial segments from streptozotocin (STZ)-induced diabetic rats, which was not shown from control rats or in other arterial segments from diabetic rats.... -
Expression of Nitric Oxide Synthase and Endothelin-1 in Human Uterine Artery from Full-Term Pregnancies
Ook-HwanChoi, SunHeeLee, EunJinKim, KoanHoiKim, ByungYongRhim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.3 6 165-172 (8 pages)
The aim of this study was to determine the roles of ET-1 and NO on uterine blood flow in pregnancy. Uterine arteries were isolated from 17 nonpregnant and 12 pregnant women. Nonpregnant group included patients with median age of 48.6⁑2.3 years who underwent hysterectomy, because of myoma. Pregnant group included patients with median age of 31.3⁑1.4 years undergoing cesarean delivery. ET-1 and ET-2 induced concentration-dependent contraction in isolated nonpregnant and pregnant... -
Regulation of L-type Calcium Channel Current by Somatostatin in Guinea-Pig Gastric Myocytes
YoungChulKim, JaeHoonSim, SangJinLee, TongMookKang, SungJoonKim, SeungRyulKim, SeiJinYoun, SangJeonLee, Wen-XieXu6, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 5 103-108 (6 pages)
To study the direct effect of somatostatin (SS) on calcium channel current (IBa) in guinea-pig gastric myocytes, IBa was recorded by using whole-cell patch clamp technique in single smooth muscle cells. Nicardipine (1μM), a L-type Ca2+ channel blocker, inhibited IBa by 98⁑1.9% (n=5), however IBa was decreased in a reversible manner by application of SS. The peak IBa at 0 mV were decreased to 95⁑1.1, 92⁑1.9, 82⁑4.0, 66⁑5.8, 10⁑2.9% at 1010, 109,... -
Effects of Kanagawa Hemolysin on Blood Pressure and Arterial Tone in Rats
YoungMoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.4 8 225-233 (9 pages)
Kanagawa hemolysin (KH), an exotoxin produced from Kanagawa phenomenon-positive Vibrio parahemolyticus, has been shown to possess various biological activities including hemolysis, enterotoxicity, cytotoxicity, and cardiotoxicity. The aim of this study was to investigate the effect of KH on the cardiovascular system and its mechanism, employing in vivo and in vitro experiments of the rat. Intracerebroventricular (icv) administration of 100 mHU KH produced a marked and continuous pressor effect... -
Neurotensin Enhances Gastric Motility in Antral Circular Muscle Strip of Guinea-pig
TaeYongKoh, SungJoonKim, SangJinLee, TongMookKang, JaeYeoulJun, JaeHoonSim, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.3 7 227-234 (8 pages)
Many reports suggest that neurotensin (NT) in the gastrointestinal tract may play a possible role as a neurotransmitter, a circulating hormone, or a modulator of motor activity. NT exerts various actions in the intestine; it produces contractile and relaxant responses in intestinal smooth muscle. This study was designed to investigate the effect of NT on motility of antral circular muscle strips in guinea-pig stomach. To assess the role of Ca2 influx in underlying mechanism, slow waves... -
Changes in the Endothelin-1-induced Contraction of Aorta in Streptozotocin-induced Diabetic Rats
HyunJooCheong, EunJinKim, SuJinKim, SunHeeLee, ByungYongRhim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.3 3 185-195 (11 pages)
Vascular diseases are significant complications of diabetes mellitus (DM), and the endothelial cells may play a pivotal role in the development of vascular disease in DM. Endothelin-1 (ET-1) released from endothelium is a potent vasoconstrictor peptide and circulating level of ET-1 is increased in a variety of disease states. The purpose of this study was to determine the changes of responsiveness to ET-1 in DM, and we experimented on the changes in the ET-1-induced contraction, levels of... -
Regulation of the Contraction Induced by Emptying of Intracellular Ca2+ Stores in Cat Gastric Smooth Muscle
Hye-JungBaek, Sang-SooSim, Duck-JooRhie, ShinHeeYoon, SangJuneHahn, Yang-HyeokJo, Myung-SukKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.2 5 113-120 (8 pages)
To investigate the mechanism of smooth muscle contraction induced by emptying of intracellular Ca2 stores, we measured isometric contraction and 45Ca2 influx. CaCl2 increased Ca2 store emptying- induced contraction in dose-dependent manner, but phospholipase C activity was not affected by the Ca2 store emptying-induced contraction. The contraction was inhibited by voltage-dependent Ca2 channel antagonists dose dependently, but not by TMB-8 (intracellular... -
Muscarinic Receptor Subtype Controlling the Carbachol-Induced Muscle Contraction in Guinea Pig Gastric Antrum
JongChulRhee, Dae-YongUhm, TongMookKang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.2 4 105-111 (7 pages)
CCh was studied using putative muscarinic receptor antagonists. Isometric force of the isolated circular muscle strips was measured in an organ bath. CCh contracted the muscle in a dose-dependent way, and each of the three muscarinic receptor antagonists, 4-diphenylacetoxy- N-methylpeperdine methiodide (4-DAMP), methoctramine and pirenzepine shifted the concentration- response curves to the right without significantly reducing the maximum force. The affinities of the muscarinic antagonists (pA2... -
Evidence for Adenosine Triphosphate (ATP) as an Excitatory Neurotransmitter in Guinea-Pig Gastric Antrum
TongMookKang, WenxieXu, SungJoonKim, SeungCheolAhn, YoungChulKim, InsukSo, MyoungKyuPark, Dae-YongUhm, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 6 165-174 (10 pages)
We explore the question of whether adenosine 5'-triphosphate (ATP) acts as an excitatory neurotransmitter in guinea-pig gastric smooth muscle. In an organ bath system, isometric force of the circular smooth muscle of guinea-pig gastric antrum was measured in the presence of atropine and guanethidine. Under electrical field stimulation (EFS) at high frequencies (＞20 Hz), NO-mediated relaxation during EFS was followed by a strong contraction after the cessation of EFS (a... -
Moderate Elevation of Extracellular K+ Concentration Induces Vasorelaxation in Isolated Rat, Rabbit and Human Cerebral Arteries Role of Na Pump and Ba-Sensitive Process
DongHoKim, SungJoonKim, SangJinLee, SungJinPark, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 7 705-714 (10 pages)
Cerebral blood vessels relax when extracellular K concentrations ([K])e are elevated moderately (2∼15 mM, K-induced vasorelaxation). We have therefore studied the underlying mechanism for this K- induced vasorelaxation in the isolated middle cerebral arteries (MCAs). The effects of ouabain and Ba2 on K-induced vasorelaxation were examined to determine the role of sodium pump and/or Ba-sensitive process (possibly, inward rectifier K current) in the... -
Sensitivity of Rabbit Cerebral Artery to Serotonin is Increased with the Moderate Increase of Extracellular K+
SukHyoSuh, SungJinPark, JaiYoungChoi, JaeHoonSim, YoungChulKim, SungJoonKim, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 6 695-703 (9 pages)
[K]O can be increased under a variety of conditions including subarachnoid hemorrhage. The increase of [K]O in the range of 5∼15 mM may affect tensions of blood vessels and can change their sensitivity to various vasoactive substances. Therefore, it was examined in the present study whether the sensitivity of cerebral arteries to vasoactive substances can be changed with the moderate increase of [K]O, using Mulvany-type myograph and [Ca2]c measurement. The...
