• Title/Summary/Keyword: suspension groups

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Effects of Chaenomelis fructus Herbal Acupuncture on Muscle Fiber in Muscle Atrophy Rat induced by Hindkimb Suspension (목과약침(木瓜藥鍼)이 후지체공(後肢滯空)으로 유발(誘發)된 근위축(筋萎縮) 흰쥐의 근섬유(筋纖維) 변화(變化)에 미치는 영향(影響))

  • Chun, Chul-Ki;Nam, Sang-Soo;Park, Dong-Suk
    • Journal of Acupuncture Research
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    • v.18 no.1
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    • pp.170-185
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    • 2001
  • Objective : This experimental study was designed to investigate the effect of Chaenomelis fructus herbal acupuncture on the soleus muscle and tibialis anterior muscle of hindlimb-suspended rats. The measurement have been performed on the composition of type I, type IIa and type IIb muscle fibers in the soleus muscle and tibialis anterior muscie - histochemical study. Materials and Methods : Sprague-Dawley rats weighing about 250g were subjected to hindlimb suspension and divided into six groups; 1. Normal group: normai group 2. Control group: group of hindlimb suspension for 7 days 3. NT group: non-treatment group for 2 or 4 weeks after 7days of hindlimb suspension. 4. EX gtoup: running exercise group for 2 or 4 weeks after 7days of hindlimb suspension. 5. HA group: administration of Chaenomelis fructus herbal acupuncture during 2 or 4 weeks after 7 days of hindlimb suspension. 6. EXHA group: administration of Chaenomelis fructus herbal acupuncture and running exercise during 2 or 4 weeks after 7 days of hindlimb suspension. Results Results : 1. The composition of type I muscle fibers in the soleus muscle significantly increased in 2 or 4 weeks HA and EXHA groups more than control group, and the composition of type IIa muscle fibers in the soleus muscle significantly decreased in 2 or 4 weeks HA and EXHA goups more than control group. 2. The composition of type I muscie fibers in the tibialis anterior muscle significantly increased in 2 or 4 weeks HA and EXHA groups more than control group, and the composition of type IIb muscle fibers in the soleus muscle significantly decreased in 2 or 4 weeks HA and EXHA groups more than control group. 3. The size of type I muscle fibers in the soleus muscle significantly increased in 2 or 4 weeks HA and EXHA groups more than control group, and the size of type IIa muscle fibers in the soleus muscle significantly increased in 2 weeks EXHA group and 4 weeks HA and EXHA groups more than control group. 4. The size of type I, IIa muscle fibers in the tibialis anterior muscle significantly increased in 2 or 4weeks HA, EXHA and EX groups more than control group, and the size of type IIb muscle fibers significantly increased in 2 weeks EXHA group and 4 weeks HA, EXHA and EX groups more than control group. 5. The capiliaries number per fiber of muscle fibers in the soleus and tibialis anterior muscle showed no differences in all experimental groups more than control group. Conclusion : According to the above results, it is shown that Chaenomelis fructus herbal acupuncture could be effective in the treatment of muscle atrophy.

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Efficacy of Baycox(Bay Vi 9142) Suspension against Coccidium Isospora suis in piglets (신생자돈의 콕시듐증에 대한 Baycox(Bay Vi 9142) 현탁액의 효능)

  • Kim Byeung-gie
    • Journal of Veterinary Clinics
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    • v.12 no.1
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    • pp.917-924
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    • 1995
  • I suis cocciosis in piglets seems to occur in the majority of Korean sow herds. Cocci야osis is characterized by a pasty diarrhea in piglets appearing at 5 to 11 days old. Morbidity is variable, Mortality is usually low but piglets growth is always retarded. And, the principal source of infection is the environment because of the high resistance of oocysts. Control of coccidiosis is usually frustrated since the majority of treatment have not constant results. Mundt et al(1990) developed a new strategy by administrating toltrazuril as an oral suspension. This new anticoccidial drug reduced clinical signs and mortality. Therefore, we will try to medicate piglets with Baycox(Bay Vi 9142) suspension in a sow herd, having a problem of I suis coccidiosis. The incidences of coccidiosis in suckling piglets in C and D bleeding stock farm were from 28.6 to 42.3 and 21.1~57.9 % during 3 to 21 day-old. The body weights of suckling piglets in treated groups were higher than those of control groups at 11 and 18 day-old. Also, those of C breeding stock firm were higher than those of D farm. The body weight gains of suckling piglet of treated groups were higher than those of control groups. Also, those of C breeding stock firm were higher than those of D farm. There was no dead piglet in all experimental groups. Some atrophic piglets were done away with. In C breeding stock farm, the incidences of diarrhea in treatment groups were significantly lower an those of control groups. Also, the degrees of diarrhea in treated groups were significantly lower than those in control groups. In D breeding stock farm, the incidences of diarrhea in treated groups were a little lower than those in control groups. Also the degrees of diarrhea in treated groups were a little lower than those in control groups. In the treated groups, the incidences and degrees of diarrhea were reduced at the 4th day and increased at the 13th day after treatment. The number of litters excreted oocysts in treated groups wert lower than those in control groups after treatment. Also, the OPG in treated groups were lower than those in control groups. According to above results, the effect of Baycox suspension against swine coccidiosis was very good. If we will treat with Barcox suspension swine coccidiosis in swine stock farms, we can get good effects of the improvement of body weight gains and diarrhea and e reduce of excreted costs in faeces.

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The Effect of KangwhalSokdan-tang(Jianghuoxuduan-tang) Administration on Muscle Regeneration in Atrophied Rat Muscle Induced by Hindlimb Suspension (후지체공(後肢滯空) 유발 흰쥐의 위축 근육에 대한 강활속단탕(羌活續斷湯)의 근 재생효과)

  • Soh, Kab-Seog;Park, Young-Hoi;Oh, Jae-Keun;Lee, Myeong-Jong
    • Journal of Korean Medicine Rehabilitation
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    • v.19 no.4
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    • pp.19-35
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    • 2009
  • Objectives : This experimental study was designed to investigate the effect of KangwhalSokdan-tang(Jianghuoxuduan-tang) on the muscle regeneration of atrophied rat muscle by hindlimb suspension. Materials and methods : In this study, Sprague-Dawley rats weighing about 250g were subjected to hindlimb suspension and divided into total four groups: Normal group(n=6), Control group(n=6), Hindlimb non-treatment group(n=6), Hindlimb treatment group(n=6). Experiments were seperately tried two times. The first trial was studied by the following two groups; The first was normal group(n=6). The second was group(n=18) for hindlimb suspension during 2 weeks (control I group). The second trial after 2 weeks hindlimb suspension was studied by the following three groups; The third group(n=6) was expired immediately after 2 weeks hindlimb suspension. The forth group(n=6) was given free activity during 2 weeks after 2 weeks hindlimb suspension. The fifth group(n=6) was administrated of KST during 2 weeks after 2 weeks hindlimb suspension. In order to investigate degree of muscle atrophy, body weight and gastrocnemius muscle mass were compared. To analyze muscle regeneration factors(expression of IGF-1, Myogenin, MyoD), Western blot was used. Results : The results were analyzed by statistical process as follows, 1. In body weight, all hindlimb suspension groups were lower than normal group, but tendency of increase was shown in KST group compared to non-treatment group after 2 weeks hindlimb suspension. 2. In gastrocnemius muscle mass, KST group on both side was significantly higher than non-treatment group after 2 weeks hindlimb suspension. 3. In case of IGF-I, Type I of KST group was significantly increased than non-treatment group, but Type II was not shown significance. 4. There was no significantly difference in Myogenin. 5. In MyoD, Type I of KST group was significantly increased than control group, and Type II of KST group was significantly increased than non-treatment group. Conclusions : In summary, this study demonstrates that KST administration has an effect to prevent muscle atrophy and contribute muscle regeneration and proliferation. And also it is suggested that IGF-I and MyoD is major factors of myogenesis expression to KST adminstration after hindlimb suspension.

Pulmonary passage of canine adipose tissue-derived mesenchymal stem cells through intravenous transplantation in mouse model

  • Jaeyeon Kwon;Mu-Young Kim;Soojung Lee;Jeongik Lee;Hun-Young Yoon
    • Journal of Veterinary Science
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    • v.25 no.3
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    • pp.36.1-36.15
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    • 2024
  • Importance: The intravenous administration of adipose tissue-derived mesenchymal stem cells (AdMSCs) in veterinary medicine is an attractive treatment option. On the other hand, it can result in severe complications, including pulmonary thromboembolism (PTE). Objective: The present study assessed the occurrence of PTE after the intravenous infusion of canine AdMSCs (cAdMSCs) into experimental animals. Methods: Five-week-old male BALB/c hairless mice were categorized into groups labeled A to G. In the control group (A), fluorescently stained 2×106 cAdMSCs were diluted in 200 µL of suspension and injected into the tail vein as a single bolus. The remaining groups included the following: group B with 5×106 cells, group C with 3×106 cells, group D with 1×106 cells, group E with 1×106 cells injected twice with a one-day interval, group F with 2×106 cells in 100 µL of suspension, and group G with 2×106 cells in 300 µL of suspension. Results: Group D achieved a 100% survival rate, while none of the subjects in groups B and C survived (p = 0.002). Blood tests revealed a tendency for the D-dimer levels to increase as the cell dose increased (p = 0.006). The platelet count was higher in the low cell concentration groups and lower in the high cell concentration groups (p = 0.028). A histological examination revealed PTE in most deceased subjects (96.30%). Conclusions and Relevance: PTE was verified, and various variables were identified as potential contributing factors, including the cell dose, injection frequency, and suspension volume.

Effect of Low Frequency Electrical Stimulation on VEGF Expression of Suspension Induced Atrophic Muscle (뒷다리 현수 유도 위축근에 대한 저빈도 전기자극의 VEGF 발현에 미치는 영향)

  • Kang, Jong-Ho;Han, Jong-Man
    • Journal of the Korean Society of Physical Medicine
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    • v.5 no.2
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    • pp.273-280
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    • 2010
  • Purpose : The purpose of this experiment was to evaluate the pre-application effect of low frequency electrical stimulation(LFES) on VEGF expression of atrophic muscle and to determine the optimal pre-application period of LFES for prevent muscle atropy Methods : Twenty-five adult sprague-dawley rats were randomly assigned to weight bearing group, hindlimb suspension for 14 days group, hindlimb suspension with pre-application of LFES for 14 days group, hindlimb suspension with pre-application of LFES for 11 dsys group and, hindlimb suspension with pre-application LFES for 7 dsys group. 16Hz of Biphasic pulse current was applied to gastrocnemius for 15min per days. Results : VEGF were decreased expression in HSG groups, whereas VEGF were significantly increased in HS+ES14G, HS+ES11G, HS+ES7G groups Conclusion : LFES during the hindlimb suspension showed a positive effect in VEGF induction and early application is strongly encourage VEGF induction. This indicated that pre-application of LFES could prevent muscle atrophy.

REIDEMEISTER ORBIT SETS ON THE MAPPING TORUS

  • Lee, Seoung-Ho
    • Communications of the Korean Mathematical Society
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    • v.19 no.4
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    • pp.745-757
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    • 2004
  • The Reidemeister orbit set plays a crucial role in the Nielsen type theory of periodic orbits, much as the Reidemeister set does in Nielsen fixed point theory. Let f : G $\longrightarrow$ G be an endomorphism between the fundamental group of the mapping torus. Extending Jiang and Ferrario's works on Reidemeister sets, we obtain algebraic results such as addition formulae for Reidemeister orbit sets of f relative to Reidemeister sets on suspension groups. In particular, if f is an automorphism, an similar formula for Reidemeister orbit sets of f relative to Reidemeister sets on given groups is also proved.

The Effects of Task Oriented Training with Suspension Device on Trunk Stability and Gross Motor Function of Children with Spastic Diplegia Cerebral Palsy (현수보조장치를 이용한 과제 지향적 훈련이 경직형 양하지 뇌성마비아동의 체간 안정성과 대동작기능에 미치는 영향)

  • Lee, Mi-Seon;Choi, Jong-Duk
    • Journal of the Korean Society of Physical Medicine
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    • v.8 no.4
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    • pp.637-645
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    • 2013
  • PURPOSE: The purpose of this study was to examine the effect of using a suspension device for arm reaching activity on trunk stability and gross motor function of children with spastic diplegia cerebral palsy. METHODS: The subject in this study consisted of 11, GMFCS(Gross Motor Function Classification System) III~IV children with spastic diplegia cerebral palsy, all of whom agreed to participate in the study. All subjects were divided into two groups: the experimental group using a suspension device, and the control group using no suspension device. For each group, a thirty-minute intervention was done twice per week during 8 weeks. Before and after intervention, each test was measured using TIS(Trunk Impairment Scale), GMFM (Gross Motor Function Measure) and PRT(Pediatric Reaching Test) to change trunk stability, gross motor function and arm reaching activity. The data were analyzed with the Wilcoxon signed rank test. RESULT: All two groups had a meaningful increase in GMFM-Sit data measured before and after intervention. The experimental group had a significant increase from an average of 78.83 to an average of 84.83 in GMFM-Crawling. For both groups, there was a substantial increase in the change in sitting position and arm reaching. CONCLUSION: According to the results of this study, the arm reaching activity using suspension device had an effect on trunk stability and gross motor function and it changed arm reaching activity.

Electrorheological Effect of the Suspension Composed of Bismark Brown Chitosan Succinate as the Dispersed Phase

  • Choi, Ung-Su
    • KSTLE International Journal
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    • v.8 no.2
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    • pp.21-25
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    • 2007
  • The electrorheological effect of the suspension composed of Bismark Brown chitosan succinate as the dispersed phase in silicone oil was investigated. Bismark Brown chitosan succinate suspension showed a typical ER response (Bingham flow behavior) upon application of an electric field. The shear stress for the suspension exhibited the dependence with a factor equals to 1.84 power on the electric field. The experimental results for the suspension correlated with the polarization model and Bismark Brown chitosan succinate suspension behaved as an anhydrous ER fluid. On the basis of the results, Bismark Brown chitosan succinate suspension showed the ER flow behavior upon application of the electric field due to the polarizability of the branched amide and amine polar groups of the Bismark brown chitosan succinate particles.

Effect of suspension plank exercise with hip abduction and modified bridge exercise on the trunk muscle thickness in healthy adults (건강한 성인의 엉덩관절 벌림 서스펜션 플랭크 운동과 수정된 브릿지 운동이 몸통근육 두께에 미치는 영향)

  • Yo-han Kim;Ji-heon Hong;Jae-ho Yu;Jin-seop Kim;Dong-yeop Lee
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.29 no.1
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    • pp.1-9
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    • 2023
  • BACKGROUND: The purpose of this study was to find out which exercise is more effective for the activation of the trunk, when the suspension plank and modified bridge exercise are performed. Weakening of the trunk muscles can lead to secondary injuries such as back injuries. In order to prevent injury, trunk muscles must be strengthened, and representative trunk strengthening exercises include planks and bridges. Each has been developed with a modified method, but since there is no paper comparing which exercise is more effective for trunk muscle strength, it was written to compare the two exercises. METHODS: The subjects were a random sample of 30 healthy men who agreed to participate in the study. The subjects were divided into two groups of 15 people each, and the suspension plank and the modified bridge exercise were performed for six weeks. The thickness of the transverse abdominis (TrA), internal abdominal oblique (IO), external abdominal oblique (EO), rectus abdominis (RA), multifidus (MF) was measured before and after the exercise. The two groups were analyzed using an independent t-test and paired t-test to compare the muscle thickness and the difference before and after exercise. RESULTS: The trunk muscle thickness was increased in both groups with suspension plank and modified bridge exercise, and there was a statistically significant difference. When comparing the two groups, the suspension plank group also showed a significant difference in RA (p<.05). CONCLUSION: As a result of this study, suspension plank exercise can have a positive effect on activating the trunk muscles and strengthening the strength of RA. Therefore, it is considered that suspension plank exercise is a more effective intervention to strengthen trunk muscle than modified bridge exercise.

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SOME COHOMOTOPY GROUPS OF SUSPENDED QUATERNIONIC PROJECTIVE PLANES

  • Lee, Jin Ho;Lee, Kee Young
    • Bulletin of the Korean Mathematical Society
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    • v.53 no.5
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    • pp.1567-1583
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    • 2016
  • In this paper we present the computation of two kinds of cohomotopy groups $[{\Sigma}^n+^4{\mathbb{H}}P^2,S^n]$ and $[{\Sigma}^n+^5{\mathbb{H}}P^2,S^n]$ for a non-negative integer n, where ${\Sigma}^k{\mathbb{H}}P^2$ is the k-fold suspension of quaternionic projec- tive plane ${\mathbb{H}}P^2$.