• Title/Summary/Keyword: Fos expression

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The Effect of Hwangryunhaedok-tang on the c-fos Level in Mice Exposed to Heat Stress (황련해독탕(黃連解毒湯)이 외열 스트레스(화사(火邪))에 의한 동물모델에서 c-fos 발현에 미치는 영향 연구)

  • Hwang, Deok-Sang;Kim, Hyo-Geun;Kim, Tae-Mi;Lee, Tae-Hee;Oh, Myung-Sook
    • The Journal of Korean Obstetrics and Gynecology
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    • v.27 no.3
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    • pp.1-11
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    • 2014
  • Objectives: Hwangryunhaedok-tang (HH) is a representative heat clearing multiherb prescription. We evaluated the protective effect of HH against heat stress exposure in mice. Methods: Six weeks old ICR mice were used for this study. After $43^{\circ}C$ heat stress for 15 minutes, we evaluated the changes of motor activity and c-fos expression level to determine the proper heat stress and evaluation time. The subjects were divided into 4 groups (1. control group, 2. heat stress group with normal saline, 3. heat stress group with administration of 100 mg/kg, and 4. heat stress group with administration of 1000 mg/kg). After oral administration of HH once a day for 3 days, 2, 3, 4 groups were exposed to $43^{\circ}C$ heat stress for 15 minutes. Then, we evaluated the motor activity for 120 minutes and analyzed the c-fos expression using western blot. We investigated the effect of HH and its ingredients on c-fos expressions after heat stress. The mice were administrated HH, Scutellariae Radix, Coptidis Rhizoma, Phellodendri Cortex, and Gardeniae Fructus for 3 days. After one hour of last treatment, the mice were exposed to heat stress at $43^{\circ}C$ for 15 min. After two hours, the hypothalamus was dissociated and lysed to measure c-fos expression. Results: After oral administration of HH for 3 days, motor activity was recovered insignificantly. 100 mg/kg HH treatment reduced the c-fos expression after heat stress but insignificantly. Among the ingredients of HH, Coptidis Rhizoma and Scutellariae Radix treatment groups significantly reduced the c-fos after stress. Conclusions: These results show that Hwangryunhaedok-tang may be effective to reduce the heat stress response.

The Effects of Aqueous Extracts of Aconiti ciliare tuber on Functional Recovery after Sciatic Crushed Nerve Injury in Rats

  • Cho, Tae-Young;Song, Yun-Kyung;Lim, Hyung-Ho
    • The Journal of Korean Medicine
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    • v.30 no.3
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    • pp.39-50
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    • 2009
  • Objective : The aim of this study was to evaluate the effects of Aconiti ciliare tuber on the descending pain and the recovery of locomotor function that results from sciatic crushed nerve injury in rats. Method : In order to assess the effects of the aqueous extract of Aconiti ciliare tuber on the recovery rate of locomotor function, we investigated the walking track analysis, and for the effects on the pain control we investigated brain-derived neurotrophic factor (BDNF) and inducible nitric oxide synthase (iNOS) expression in the sciatic nerve and on the expressions of c-Fos in the ventrolateral periaqueductal gray (vlPAG) region resulting from the sciatic crushed nerve injury in rats. Result : Treatment with Aconiti ciliare tuber significantly enhanced the SFIvalue, enhanced BDNF expression, decreased iNOS expression, and suppressed c-Fos expression. The present results showed that Aconiti ciliare tuber facilitated functional recovery following sciatic crushed nerve injury in rats. The recovery mechanisms of SFI by Aconiti ciliare tuber might be ascribed to the increase of BDNF expression for nerve regeneration and reinnervation and to the suppression of iNOS expression for inhibiting nerve inflammation. Conclusion : In this process it has been shown that Aconiti ciliare tuber can be used for pain control and functional recovery from peripheral nerve injury.

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The Effects of c-Fos Expression on Ultrasound Treatment in Sciatic Nerve Crush Damaged Rats (초음파 치료가 좌골신경 압좌 손상된 흰쥐의 c-Fos 발현에 미치는 영향)

  • Kim, Dong-Dae
    • Journal of Korean Physical Therapy Science
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    • v.14 no.1_4
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    • pp.11-23
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    • 2007
  • This study was performed to evaluate the effects of low-intensity ultrasound application to the peripheral nerve injury animal model on enhancement of nerve regeneration and functional recovery. Using aseptic microsurgical techniques, the sciatic nerve of adult male Sprague-Dawley rats was crushed at the outside of right mid-thigh for 30 seconds with fine forceps. Beginning just after surgery, various continuous-wave ultrasound treatments with intensities of 0.2 W/$cm^2$, 0.5 W /$cm^2$ and 1.0 W /$cm^2$ operated at 1 MHz or sham treatment were applied to the opposite inside of the crush site for 1 minute every other day with a transducer moving speed of 2cm/sec. For evaluation of the progress of sciatic nerve regeneration, c-Fos expression in the lumbar spinal cord (L4-5) dorsal horn was investigated. c-fos expression was markedly increased at 1hour after sciatic nerve crush injury, then gradually decreased thereafter. The c-fos expressions were significantly decreased (p<0.05) in all the experimental groups in comparison with the control group until 3days post-crush, and the degrees of decrease were higher in 0.5 W/$cm^2$ and 1 W/$cm^2$ intensity ultrasound application groups. It is suggested that low-intensity ultrasound application to an animal model of sciatic crush injury may suppress pain transmission and promote nerve regeneration, and which may result in delayed progress of muscle atrophy and accelerated progress of muscle recovery and eventually may result in accelerated and improved foot function recovery.

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Effects of Haein-tang(Hairen-tang) Extract on Functional Recovery in Sciatic Nerve and c-Fos Expression in the Brain after Crushed Sciatic Nerve Injury in Rats (해인탕 추출물이 흰쥐 좌골신경 손상 모델에서 기능회복과 뇌의 c-Fos 발현에 미치는 영향)

  • Eun, Young-Joon;Song, Yun-Kyung;Lim, Hyung-Ho
    • Journal of Korean Medicine Rehabilitation
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    • v.21 no.2
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    • pp.125-142
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    • 2011
  • Objectives : Peripheral nerve injuries are commonly encountered clinical problems and often result in severe functional deficits. The purpose of this study was to evaluate the effects of Haein-tang(Hairen-tang) extract on functional recovery and pain release in the sciatic nerve after crushed sciatic nerve injury in rats. Methods : 1. Sciatic functional index(SFI) were performed on functional recovery. 2. c-Fos immunohistochemistry were performed on c-Fos expressions in the paraventricular nucleus(PVN) and ventrolateral periaqueductal gray(vIPAG). 3. Neurofilament immunohistochemistry were performed on neurofilament regeneration. 4. Western blot were performed on brain-derived neurotrophic factor(BDNF) and nerve growth factor(NGF) expression. Results : 1. Haein-tang(Hairen-tang) extract significantly enhanced the SFI value in the sciatic nerve injury and 100 mg/kg, 200 mg/kg Haein-tang(Hairen-tang)-treated group. 2. Haein-tang(Hairen-tang) extract significantly suppressed the sciatic nerve injury-induced increment of c-Fos expressions in the PVN and vIPAG in the sciatic nerve injury and 100 mg/kg, 200 mg/kg Haein-tang(Hairen-tang)-treated group. 3. Haein-tang(Hairen-tang) extract significantly increased neurofilament expression in the sciatic nerve injury and 50 mg/kg, 100 mg/kg, 200 mg/kg Haein-tang(Hairen-tang)-treated group. 4. Haein-tang(Hairen-tang) extract significantly controled the sciatic nerve injury-induced increment of BDNF and NGF expressions in the sciatic nerve injury and 100 mg/kg, 200 mg/kg Haein-tang(Hairen-tang)-treated group. Conclusions : These results suggest that Haein-tang(Hairen-tang) treatment after sciatic nerve injury is effective for the functional recovery by enhancing of axonal regeneration and suppressing of pain.

Quantitative RT-PCR for Measuring C-fos Gene Expression in Rat Brain after ECS (전기경련충격시 경쟁적 역전사 중합효소연쇄반응(CRT-PCR)을 이용한 흰쥐 뇌 c-fos 유전자의 발현 양식 분석)

  • Yang, Byung-Hwan;Lee, Jei-Wook;Park, Eung-Chul;Yu, Jae-Hak;Cho, Goang-Won;Yang, Bo-Gee;Chai, Young-Gyu
    • Korean Journal of Biological Psychiatry
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    • v.3 no.2
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    • pp.181-190
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    • 1996
  • To clarify the mechanism of action of electroconvulsive shack(ECS) in respect to molecular biology, and to detect the quantitative amount of change of c-fos gene expression after ECS in the rat's brain, the authors obtained brain specimens from the striatum, cerebral cortex, hippocampus, and cerebellum. Each brain was removed within 30min. after ECS(130V, 0.5sec) and ECS-sham. Then we performed RT-PCR. The results are 1) ECS was found to affect the expression of immediate early genes. 2) the cerebral cortex and hippocampus was more influenced by ECS thon in the cerebellum and striatum. From these results, we can suggest that ECS is related to the mechanism of cognition, mood, memory which is correlated to cerebral cortex and hippocampus.

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Effect of Water Extract of Deer Antler in Osteoclast Differentiation (녹용 물 추출물의 파골세포 분화 억제효과)

  • Kwak, Han-Bok;Kim, Ju-Ho;Kim, Dong-Joo;Kwon, Young-Mi;Oh, Jae-Min;Kim, Yun-Kyung
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.4
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    • pp.891-895
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    • 2008
  • Natural substances have recently received much attention as therapeutic drugs to prevent many diseases in humans because they avoid the many side effects of treatment with chemical compounds. We examined the effect of water extract of deer antler in RANKL-induced osteoclast differentiation. The effects of water extract of deer antler in osteoclast differentiation were determined by culture of bone marrow macrophages (BMMs). The mRNA expression levels of c-Fos, NFATc1, TRAP, and GAPDH in BMMs were analyzed by RT-PCR. Cell lysates were obtained from the treated cells, the expression levels of c-Fos and NFATc1 were determined by western blotting with antibodies for c-Fos and NFATc1. Water extract of deer antler greatly inhibited RANKL-mediated osteoclast differentiation in osteoclast precursors without cytotoxicity. Water extract of deer antler inhibited the expression of c-Fos and NFATc1 in BMMs treated with RANKL. Our findings suggest that water extract of deer antler inhibited osteoclast differentiation by suppressing c-Fos and NFATc1 expression in response to RANKL. These results demonstrate that water extract of deer antler may be a useful the treatment of bone-related disease such as osteoporosis.

The Effect of LR3 Acupuncture on Blood Pressure and C-fos Expression in Hypertensive Rats Induced by 2K1C (침자(鍼刺)가 혈압(血壓) 및 신경계(神經系) 혈압중추(血壓中樞) c-fos 발현에 미치는 영향(影響))

  • Kang Dong-Hwan;Yun Yeo-Chung;Kim Jeong-Sang;Kim Won-Jae;Na Chang-Su
    • Korean Journal of Acupuncture
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    • v.19 no.1
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    • pp.47-56
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    • 2002
  • The frequency of the hypertension is increasing as the life level is improved and an average span of the life is extended since we approached modern stage. The hypertension is also dangerous disease which raises fatal complication for example with the bleeding aproplexy and the ischemic attack. The medicinal treatment about the hypertension is required patients to take continually. The acupuncture have been introduced because a medicine-chemical treatment hasn't good influence on the human body. It recently has been processed that studies acupuncture effect for blood pressure and have been found out that blood pressure go down. The object of this study observe the effect of LR3 acupuncture on hypertension in Renal Hypertension RAT induced by 2K1C. The 2K1C model was based on renin-angiotensin system. We put the silver clip in renal artery to induce renal hypertension. We try to observe that LR3 acupuncture influence on the blood pressure and c-fos expression in CVLM, NTS, RVLM. In results, the blood pressure was decreased during acupuncture than before acupuncture, after acupuncture. The heart rate was also decreased during acupuncture than before acupuncture, after acupuncture. The LR3 acupuncture significantly effects on blood pressure and heart rate (P<0.05). The increased expression of c-fos was shown in CVLM, NTS, but not in RVLM. In conclusion, LR3 was relived the action of control upon the hypertension and related with medulla, particularly CVLM, NTS. It needs to be closely examined pharmacological mechanism and studied combination with other acupoints.

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The Effect of Low Power Laser Irradiation on acute pain of Rats Induced by Wound (저강도 레이저가 흰쥐 창상 후 급성통증에 미치는 영향)

  • Kim Dong-Hyun;Baek Su-Jeong;Kim Suk-Bum;Song Ju-Min;Kim Jin-Sang
    • The Journal of Korean Physical Therapy
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    • v.14 no.2
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    • pp.234-249
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    • 2002
  • This study was performed, using c-fos and Substance P, to investigate the effect of GaAlAs laser on acute pain model induced by wound in lumbar region's spinal level. The test group was divided into control and experimental group. Control group is shamed group(c-fos and substance P expression after non-irradiation by a GaAlAs laser), The experimental group was divided into two subgroups: one is experimental group I (c-fos expression after irradiation by a GaAlAs laser), and the other is experimental group II (substance P expression after irradiation by a GaAlAs laser). The results of this study were as following: 1. The numbers of c-fos immunoreactive neuron in spinal cord was increased markedly 1 day after wound, and decreased gradually from 1 day to 2 days in wound with GaAlAs laser irradiation. 2. The changes of the average percentages of substance P immunoreactive neurons in spinal cord was increased markedly 1 day after wound, and decreased gradually from 1 day to 2 days in wound with GaAlAs laser irradiation. Therefore, decreasing the changes of c-fos and substance P expression after irradiation by a GaAlAs laser indicates and GaAlAs laser have effect on pain control.

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Effect of Bupeuri Radix on CRF, c-Fos, ACTH and TH in Forced Swimming Test (시호(柴胡)가 강제수영부하시험에서 CRF, c-Fos, ACTH와 TH에 미치는 효과)

  • Kim, Jung-Hoon;Lee, Tae-Hee
    • The Korea Journal of Herbology
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    • v.24 no.2
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    • pp.29-37
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    • 2009
  • Objectives: The goal of this study was to investigate the antidepressive effect of Bupleuri Radix (BR). Methods : The forced swimming test (FST) was performed. Also the expression of corticotropin releasing factor (CRF), c-Fos and tyrosine hydroxylase (TH) was measured immunohistochemically at paraventricular nucleus (PVN) and locus coeruleus (LC). Concentration of adrenocorticotrophic hormone (ACTH) was measured in plasma by ELISA method. Results : The immobility in BR400 Group was significantly decreased in comparison with the control group (p

Influence of Transcutaneous Electrical Nerve Stimulation and Electroacupuncture on C-fos Expression in Spinal Cord and Functional Recovery After Rat Sciatic Nerve Crush Injury (경피신경전기자극과 전침자극이 흰쥐 좌골신경 압좌손상 후 척수내 c-fos 발현과 기능회복에 미치는 영향)

  • Lee, Hyun-Min
    • The Journal of the Korea Contents Association
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    • v.9 no.6
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    • pp.187-195
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    • 2009
  • The purpose of this study was to identify the effect of transcutaneous electrical nerve stimulation(TENS) and electroacupuncture(EA) after sciatic nerve crush injury in rats. Subjects were classified TENS group with TENS application, EA group with EA application and Control group which is not applicated electrical stimulation. TENS and EA stimulations were applied post-injury day(PD) 1 to 14 after sciatic nerve injury. This study observed c-fos expression in rat lumbar spinal cord. In addition, the paw withdrawal latency(PWL) and sciatic function index(SFI) were measured. The results were as follows: At PD 1, control group had higher c-fos immunoreactivity than experimental groups. At PD 7 and 14, control group had higher c-fos immunoreactivity than experimental groups. The PWL of experimental groups were significantly lower than control group. The SFI had not significant difference in all groups. But the average of experimental groups were higher than control group. These results suggest that TENS and EA applications increasing sensory and motor nerve recovery while decreasing c-fos immunoreactivity after sciatic nerve crush injury.