• 대한간호학회지
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• 제39권5호
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• pp.632-640
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• 2009

Purpose: The purpose of this study was to examine the effect of DHEA (Dehydroepiandrosterone) on muscle weight and Type I and II fiber cross-sectional area of affected and unaffected hindlimb muscles in rats with neuropathic pain induced by unilateral peripheral nerve injury. Methods: Neuropathic pain was induced by ligation and cutting of the left L5 spinal nerve. Adult male Sprague-Dawley rats were randomly assigned to one of two groups: The DHEA group (n=10) had DHEA injections daily for 14 days, and the Vehicle group (n=10) had vehicle injections daily for 14 days. Withdrawal threshold, body weight, food intake and activity were measured every day. At 15 days all rats were anesthetized and soleus, plantaris and gastrocnemius muscles were dissected from the both hindlimbs. Body weight, food intake, activity, muscle weight and Type I, II fiber cross-sectional area of the dissected muscles were measured. Results: The DHEA group showed significant increases (p<.05), as compared to the vehicle group for muscle weight of the unaffected plantaris, and in Type II fiber cross-sectional area of the gastrocnemius muscle. The DHEA group demonstrated a higher pain threshold than the vehicle group whereas total diet intake and activity score were not significantly different between the two groups. Conclusion: DHEA administration for 14 days attenuates unaffected plantaris and gastrocnemius muscle atrophy.

• Korean Journal of Acupuncture
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• 제21권4호
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• pp.83-99
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• 2004

Objectives : Daeganghwal-Tang(DGHT) is one of the prescriptions used for the treatment of rheumatoid arthritis(RA) in oriental medicine. The present study aimed to examine the analgesic effect of DGHT on a rat model of CFA-induced arthritis, and the relations between DGHT-induced analgesia and endogenous nitric oxide(NO) and inducible NO synthase(iNOS)/neuronal NOS. Methods : CFA-induced arthritis model used to test the effect of DGHT was chronic pain model. After the induction of arthritis, rats subsequently showed a reduced stepping force of the affected limb for at least the next 18 days. the reduced stepping force of the limb was presumably due to a painful knee. DGHT dissolved in water was orally administrated. After the treatment, behavioral tests measuring stepping force were periodically conducted during the next 4 hours. Results : DGHT produced significant improvement of stepping force of the hindlimb affected by the arthritis lasting at least 2 hours. DGHT produced the improvement of stepping force of the affected hindlimb in a dose-dependent manner. Both NO production and nNOS/iNOS protein expression which is increased by arthritis were suppressed by DGHT administration. Conclusions : The data suggest 1) that DGHT produces a potent analgesic effect on the chronic knee arthritis pain model in the rat and 2) that DGHT-induced analgesia modulate endogenous NO through the suppression of nNOS/iNOS protein expression.

• 한국임상수의학회지
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• 제16권1호
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• pp.128-137
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• 1999

Plasma progesterone (P$_4$) concentrations were measured for confirming the estrus observation and for the early pregnancy diagnosis in 130 cows of small farmers. Ultrasonographic examinations were performed from day 30 after artificial insemination to establish the characteristic ultrasonographic appearances of gestational structures in each pregnant stages. Of the 130 cows inseminated, 111 cows (85.4%) were an ovulatory estrus, 12 cows (9.2%) were an unovulatory estrus, and 7 cows (5.4%) were the error of estrus detection, respectively. The accuracy for early pregnancy diagnosis in 111 ovulatory estrus cows achieved when the discriminatory concentration at day 21 after artificial insemination was placed at 3.0 ng-/ml in plasma, was 86.7 % for positive diagnosis and 100% for negative diagnosis, respectively. Pregnancy diagnosis by ultrasonography were performed to evaluate gestational structures from day 30 after artificial insemination in 83 cows. Pregnant cows were 72 of 83 cows. The characteristic ultrasonography of gestational structures in each gestational stages was as follows. The embryo proper was observed within anechoic fetal fluid between 28 and 40 days after insemination, and amnion and embryonic heartbeat was also detected in this period. Between days 41 and 50, embryo proper was detected as an discriminated from head and body, and forelimb buds and hindlimb buds were also observed in this period. Between days 51 and 60, an embryo proper was clearly discriminated from head and body, and fetal movement, forelimb buds and hindlimb buds were observed in this period. Between days 61 and 70, fetus was completely developed, and fetal skeleton, organs and cotyledon were observed. After day 71, each organs of fetus were rapidly developed and a fetus was partially observed in screen because fetus was too big and larger, These results indicate that plasma P$_4$ determination at days 0,6 and 21 after artificial insemination can be utilized for confirming the estrus observation and for early pregnancy diagnosis. Also, ultrasonography was reliable method for early pregnancy diagnosis at day 30 after artificial insemination.

• 대한한방소아과학회지
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• 제11권1호
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• pp.205-226
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• 1997

Sanpoongdan(SPD) has been known effective on infantile convulsive disorders in clinical field of oriental medicine. The purpose of this study was to investigate the anti-convulsive, sedation and analgesic effects of SPD in mouse. The anticonvulsive effect was evaluated In mice treated with pentylenetetrazol, stychnine, and picrotoxin. For the sedative effect, observations were made on the sleeping time induced by thiopental sodium and pentobarbital sodium following oral administration of SPD. Furthermore, reduction of spontaneous movements and ataxia using rota rod method were evaluated. Analgesic effects on the writhing syndrome induced by acetic acid and on hindlimb pain induced by pressure were also observed. The findings were as follows : 1. The solid extracts of SPD revealed no effect on convulsions induced by pentylenetetrazol, strychnine, and picrotoxin. 2. Thiopental sodium-induced sleeping time was prolonged by the administration of the solid extracts of SPD, but this result was devoid of statistical significance. 3. The oral administration of SPD enhanced the sleeping induced by pentobarbital sodium. 4. Spontaneous movements were significantly depressed following the oral administration of the solid extracts of SPD. 5. Ataxia was not shown in rota rod method following the oral administration of the solid extracts of SPD. 6. The solid extracts of SPD showed positive analgesic effects on the acetic acid-induced writhing syndrome. 7. The solid extracts of SPD raised the threshold of the hindlimb pressure pain, but the result was not statistically significant. From the results, it can be concluded that SPD has sedative and analgesic effects.

• 대한간호학회지
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• 제40권5호
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• pp.611-619
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• 2010

The purpose of this study was to examine the effects of exercise on muscle weight and Type I and II fiber cross-sectional area of affected and unaffected hindlimb muscles in rats with neuropathic pain induced by unilateral peripheral nerve injury. Methods: Neuropathic pain was induced by ligation and cutting of the left L5 spinal nerve. Adult male Sprague-Dawley rats were randomly assigned to one of two groups: The Pain+Exercise (PE) group (n=21) and the Sham+Exercise (SE) group (n=20). All rats had 28 sessions of treadmill exercise at grade 10 for 30 minutes, twice/day at 10 m/min for 14 days. Body weight, food intake and activity were measured every day. At 15 days all rats were anesthetized and soleus, plantaris and gastrocnemius muscles were dissected. Muscle weight and Type I, II fiber cross-sectional area of the dissected muscles were measured. Results: The PE group showed significant increases (p<.05), as compared to the SE group for body weight and total diet intake, muscle weight of the unaffected soleus and plantaris, and in Type I and II fiber cross-sectional area of unaffected three muscles and affected plantaris. Conclusion: Exercise for 14 days attenuates unaffected soleus, plantaris and gastrocnemius muscle atrophy in neuropathic pain model.

• 한국콘텐츠학회논문지
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• 제10권4호
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• pp.236-246
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• 2010

3-Acetylpyridine(3-AP)는 아래올리브핵을 선택적으로 파괴함으로써, 소뇌 손상을 유발하는 신경독소이다. 본 연구에서는 3-AP의 투여로 운동실조가 유발된 동물모델에서 로타로드 운동과 전침이 후지의 근활성도와 혈청 BDNF에 미치는 영향을 알아보고자 하였다. 본 연구를 위해 실험동물을 대조군, 3-AP군, 운동군, 전침군 그리고 운동전침군으로 무작위 배치하였다. 3-AP군의 최대점핑수직높이는 대조군에 비해 유의하게 감소하였고, 로타로드 운동과 전침의 적용 이후 점차 증가하는 것으로 나타났다. 또한 후지의 근활성도는 3-AP의 투여로 유의하게 증가하였고, 치료적 중재 이후 약간의 감소를 보였다. 3-AP군의 혈청 BDNF 농도는 대조군보다 유의하게 증가하였고, 운동군, 전침군 그리고 운동전침군에서는 3-AP군보다 감소하는 것으로 나타났다. 이러한 결과를 통해 로타로드 운동과 전침은 운동실조 동물모델의 기능적 회복에 긍정적인 치료효과를 가지는 것으로 생각된다.

• 한국임상수의학회지
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• 제26권6호
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• pp.655-658
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• 2009

복부 팽만과 간헐적인 가벼운 좌측후지의 파행을 나타낸 11년령의 암컷 말티즈견이 내원하였다. 신체검사에서 복부 촉신 시 동통을 호소하였고 농성의 질 삼출물을 나타내었다. 혈액화학적 검사결과 독성변화를 동반한 심한 백혈구감소증, 질소혈증, 고인산혈증, 그리고 저나트륨혈증이 관찰되었다. 복부 방사선검사에서 소장을 앞쪽과 등쪽으로 변위시키는 연부조직음영의 관상구조를 가진 매스가 관찰되었고 복부 초음파검사에서 에코성의 물질이 함유된 종괴는 자궁음영으로 판단되어 자궁축농증으로 진단하였다. 후지의 방사선검사결과 양쪽 무릎에서 내측 슬개골탈구와 외측 종자뼈가 4-5 조각으로 분화된 다분화를 관찰하였다. 환자는 곧바로 난소자궁적출술을 받아 잘 회복되었으며 정상적인 혈액화학 수치를 보였다. 좌측 후지의 파행은 간헐적이고 매우 경미하였으므로 특별한 처치를 하지 않았다. 이후 지금까지 3개월동안 뚜렷한 후지파행은 관찰되지 않았다. 여러조각으로 갈라진 후지의 양측성 외측종자뼈는 선천적인 종자골 다분화로 여겨지며 파행과 직접적인 관련성은 없는 것으로 판단된다.

• 한국임상수의학회지
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• 제31권5호
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• pp.445-448
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• 2014

7년령 수컷 말라뮤트 견이 정기적인 치과진료를 목적으로 내원하였다. 신체검사 상에서 뒷다리의 운동 실조가 확인되었으며, 우측 뒷다리의 고유 자세반응이 미약하게 지연되었다. 감별진단을 위한 MRI 검사에서, 허리뼈 1번과 2번 사이 척수강에 경막외 낭종이 확인되었다. 낭종은 디스크 바로 등쪽에서 척수실질 배쪽을 등쪽으로 심하게 압박하고 있었으며, T1 저신호, T2 고신호 및 낭종 벽을 따라 조영증강이 확인되었다. 편측성 추궁절제술을 통해 낭종을 제거하였고, 조직검사 결과 낭종의 벽은 섬유소 및 섬유아세포가 혼재되어 있었으며 일부분에서 호염성 디스크 물질이 확인되어 디스크 낭종으로 진단하였다. 환자는 수술 후 신경증상은 정상적으로 회복하였으며, 6개월 후 신체검사에서 정상적인 보행 이 관찰되었다.

• The Korean Journal of Physiology
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• 제15권2호
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• pp.73-81
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• 1981

Experiments were conducted in ischemic decerebrate cats to study the effects of electroacupuncture and electrical stimulation of peripheral nerve on pain reaction. Flexion reflex was used as an index of pain. The reflex was elicited by stimulating the sural nerve(20 V, 0.5 msec duration) and recorded as a compound action potential from the nerve innervated to the semitendinosus muscle. Electroacupuncture was performed, using a 23-gauge hyperdermic needle, on the tsusanli point in the lateral upper tibia of the ipsilateral hindlimb. The common peroneal nerve was selected as a peripheral nerve which may be associated with electroacupuncture action, as it runs through the tissue portion under the tsusanli point. Both for electroacupuncture and the stimulation of common peroneal nerve a stimulus of 20 V-intensity, 2 msec-duration and 2 Hz-frequency was applied for 60 min. The results are summerized as follows: 1) The electroacupuncture markedly depressed the flexion reflex; this effect was eliminated by systemic application of naloxone $(0.02{\sim}0.12\;mg/kg)$, a specific narcotic antagonist. 2) Similarly, the electrical stimulation of the common peroneal nerve significantly depressed the flexion reflex, the effect being reversed by naloxone. 3) When most of the afferent nerves excluding sural nerve in the ipsilateral hindlimb were cut, the effect of electroacupuncture on the flexion reflex was not observed. Whereas direct stimulation of the common peroneal nerve at the proximal end from the cut resulted in a significant reduction of the flexion reflex, again the effect was reversible by naloxone application. 4) Transection of the spinal cord at the thoracic 12 did not eliminate the effect of peripheral nerve stimulation on the flexion reflex and its reversal by naloxone, although the effect was significantly less than that in the animal with spinal cord intact. These results suggest that: 1) the analgesic effect of an electroacupuncture is directly mediated by the nervous system and involves morphine-like substances in CNS, 2) the site of analgesic action of electroacupuncture resides mainly in the brainstem and in part in the spinal cord.

• Journal of Acupuncture Research
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• 제36권4호
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• pp.238-244
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• 2019

Background: This study aimed to investigate the protective effects of Zanthoxylum bungeanum Maxim pharmacopuncture on disuse muscle atrophy in the gastrocnemius muscle of rats. Methods: Thirty male 250 g Sprague-Dawley rats were distributed randomly into 3 groups. The left hindlimb immobilization was performed with casting tape for 2 weeks, and no treatment was given to the right hindlimb. Rats received pharmacopuncture and were injected daily on the BL57 with either 2 mL of Zanthoxylum bungeanum Maxim aqueous extract (ZM-W group), 1 mL pharmacopuncture of Zanthoxylum bungeanum Maxim ethanol extract (ZM-E group), or 2 mL normal saline (control group). After 2 weeks of immobilization, the weight of the whole gastrocnemius muscle was measured, and the morphology of both the left and the right gastrocnemius muscles were assessed by Hematoxylin and Eosin staining. To investigate the immobilization-induced muscular apoptosis, the immunohistochemical analysis of BAX and Bcl-2 was carried out. Results: ZM-W and ZM-E significantly inhibited the reduction in weight of the left gastrocnemius muscle, the reduction in the left myofibrils, and the cross-sectional area of gastrocnemius, as compared with the control. Moreover, the ZM-W and ZM-E groups showed significantly reduced immunoreactivity for BAX, and increased immunoreactivity of Bcl-2 in left gastrocnemius muscle compared with the control group. Conclusion: These results suggest that Zanthoxylum bungeanum Maxim pharmacopuncture has protective effects against immobilization-induced muscle atrophy by regulating the activity of apoptosis-associated BAX / Bcl-2 proteins in the gastrocnemius muscle.