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The effects of somatosensory stimulation on hand function in patients with chronic stroke
Nam Sang-Hun,Choi Young-Eun,Lee Ju-Sang 대한치료과학회 2017 대한치료과학회지 Vol.9 No.2
Objective: The purpose of this study was to evaluate the effects of somatic sense stimulation combined with daily living activities training on the hand functions of chronic stroke patients, and to assess the effects of daily living activities training on the hand functions of chronic stroke patients. Methods: Thirty six chronic stroke patients who were receiving occupational therapy at G hospital located in Seoul were randomly selected between July and September2017; they were divided into two groups: one group of 18 patients received somatic sense stimulation and daily living activities training, and the other group of 18 patients received only daily living activities training. Both groups had 30 minute training sessions, 5times per week for 8 weeks. FMA were used to test upper extremity functions, FMA was used for sensory testing, MBI was used to see daily living activities, and QVAS measured pain at 0, 4, and 8 weeks after beginning the training. Results: The group that received somatic sense stimulation and daily living activities training together showed significant differences in K-MBI, FMA (upper extremity, sense), and QVAS ( p <.05). The group that received only daily living activities training showed significant differences in FMA (upper extremity), and QVAS ( p <.050). but did not show any significant difference in FMA (sensation), and K-MBI ( p >.05). Conclusion: The group that received somatic sense stimulation and daily living activities training together showed more significant differences in hand functions and daily living activities than the group that received only daily living activities training ( p <.05).
Sang Hak Yoon,Sung Min Ju,Nam Su Kim,Sung Cheol Park,Jin Young Park,Sung Hoon Kim,Yung Sun Song,Byung Hun Jeon 한의병리학회 2006 동의생리병리학회지 Vol.20 No.5
The root and rhizomes of Nardostachys chinensis belonging to the family Valerianaceae has been used for medicinal therapy in Korean traditional medicine. The parts have been especially used to elicit stomachic and sedative effects. Our previous studies reported that the water extract of N. chinensis has induced granulocytic differentiation in human promyelocytic leukemia (HL-60) cells. The Mitogen-activated protein kinases (MAPKs) are serine/threonine kinases involved in the regulation of various cellular responses, such as cell proliferation, differentiation and apoptosis. In this study, we investigated the signaling pathways on the HL-60 cell differentiation induced by N. chinensis. Activation of extracellular signal-regulated kinase (ERK) increased time-dependently in differentiation of HL-60 cells induced by N. chinensis. Activation of p38 increased slightly at 24 h after N. chinensis treatment, but activation of c-jun N-terminal kinase (JNK) was unaffected. Inhibitor of ERK (PD98059) significantly reduced NBT reduction activity induced by N. chinensis in HL-60 cells. In contrast, p38 inhibitor (SB203580) did not inhibit the cell differentiation. These results indicated that activaiton of ERK may be involved in HL-60 cell differentiation induced by N. chinensis.
Experimental Investigations of Pulse-Power-Modulated Inductive Discharges
Sang-Hun Seo,Dong-Ho Kim,장홍영,Jae-Hyun Nam,Joon-Hyuk Kwon,Sung-Jin Moon,Woong-Cheol Yang,Yoon-Young Kim 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.3
Time-resolved probe measurements are carried out using the boxcar measurement method in a pulsed, low-pressure inductively coupled plasma. The characteristics of the transient behavior of the electron energy distribution function (EEDF) and of the plasma parameters such as the electron density, the electron temperature, and the plasma and floating potentials, are presented and analyzed with the global model of a pulsed discharge. From the relaxation behavior of the EEDF and the analysis of the characteristic relaxation times of the electron density and temperature, the initial fast relaxation of high-energy electrons just after the power is turned off is found to be dominated by electron-atom inelastic collisions rather than the diffusive cooling effect at low pressure. A revised global model in which the effect of electron-atom inelastic collisions is included is presented. After the power is turned on, an initial very sharp rise in electron temperature followed by a decay of electron temperature is observed, and the peak electron temperature is found to increase with reducing duty cycle of the power pulse. A comparison of the measured EEDFs shows that the increase in the peak electron temperature under a shorter duty cycle pulse is caused by the depopulation of low-energy electrons, not by the overpopulation of high-energy electrons.
Isolation of Genes Related to Light and Low Temperature Stress in Barley (Hordeum vulgare L.)
Sung Han Ok,Seung Hun Shin,Jeong Sheop Shin,Kyung Nam Kim,Jong Un Chun 한국육종학회 2004 한국육종학회지 Vol.36 No.1
To investigate low temperature- and light stress-induced genes of Hordeum vulgare L. cv. Dongbori #1, suppression subtractive hybridization (SSH) was performed with mRNAs from leaf samples that treated with low temperature (4℃) and extremely high light de
Dimensional Change of Carbonized Woods at Low Temperatures
Sung-Min Kwon,Jae-Hyuk Jang,Nam-Hun Kim 강원대학교 산림과학연구소 2014 Journal of Forest Science Vol.30 No.2
To understand transition characteristics from wood to charcoal the dimensional changes of carbonized woods at low temperature from 300°C to 350°C at the intervals of 10°C were investigated. Three species of hardwoods and two species of softwoods were used in this study. Measurements of dimensional changes of cells were observed by stereoscopic microscope and an image analyzer. The apparent volume of each specimen decreased greatly with increasing temperature. Severe cracks and collapse were observed frequently in hardwoods and hardly in softwoods. Vessel diameter and tracheid cell wall thickness of the wood samples were decreased with increasing carbonization temperature. Contraction of vessel diameter in tangential direction was greater than that in radial direction. Cell wall thickness of tracheids decreased with increasing carbonization temperature. Consequently, even though it was small range of carbonization temperature, dimensions of wood components were changed considerably.