• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1994년도 춘계학술대회 and 제3회 신약개발 연구발표회
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• pp.287-287
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• 1994

In the present study, it was aimed to asses the possibility that calcitonin gene-related peptide (CGRP) released in response to transient hypotension may contribute to the reflex autoregulation of cerebral blood flow as a putative modulator. Changes in pial arterial diameter (mean, 33.0 ${\pm}$ 1.1 $\mu\textrm{m}$) with changes in systemic arterial blood pressure (mean, 101.9 ${\pm}$ 2.7 mmHg) were observed directly through a closed cranial window in anesthetized normotensive rats. Image of the pial vessels was captured with a stereoscope connected to a CCD video camera and the diameter was measured with a microscaler. In the capsaicin-treated rats (one day prior to experiment, 50 nmol capsaicin injected intracisternally), both vasodilater and vasoconstrictor responses evoked by a transient hypotension and the reverse of blood pressure were markedly attenuated or almost abolished. When changes in pial arterial diameter were plotted as a function of changes in blood pressure, the slopes of both regression lines (for vasodilators and vasoconstrictors ) were markedly reduced. Similar reductions were evidenced under treatment wi th the CGRP antibody serum (1:1,000) and following CGRP receptor desensitization. However, the autoregulatory mechanics were neither affected by treatment wi th spantide (1 ${\mu}$M), substance P antagonist, nor by substance P receptor desensitization. Suffusion wi th mock cerebrospinal fluid containing CGRP and cromakalim caused a vasodilatation in a concentration-dependent manner, respectively and their effects were antagonized by glibenclamide. Substance P produced a vasodilatation, which was, however, little affected by glibenclamide. These observations indicate that the CGRP released from the perivascular sensory fibers in response to a hypotension is implicated in the modulation of the autoregulation of cerebral blood flow.

• 동의생리병리학회지
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• 제28권6호
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• pp.601-606
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• 2014

The purpose of this study is to research the effects of acupuncturing BL40 and ST36 and to determine the mechanism of action of acupuncturing BL40 and ST36 by measuring the changes of regional cerebral blood flow (rCBF) and mean arterial blood pressure (MABP) in normal rats. To determine the mechanism of action of acupuncturing BL40 and ST36, pretreatment with indomethacine and methylene blue was performed. Acupuncturing BL40 and ST36 significantly increased rCBF, and the increased rCBF by acupuncturing BL40 and ST36 was significantly inhibited by pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase, and methylene blue($10{\mu}g/kg$, i.p.), an inhibitor of guanylate cyclase. Acupuncturing BL40 and ST36 decreased MABP, and decreased MABP by acupuncturing BL40 and ST36 was not changed by pretreatment with indomethacin and methylene blue. This result suggested that acupuncturing BL40 and ST36 might significantly increase rCBF by dilating arterial diameter and mechanism of acupuncturing BL40 and ST36 might be mediated by cyclooxygenase and guanylate cyclase.

• Journal of Yeungnam Medical Science
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• 제15권1호
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• pp.97-113
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• 1998

교감신경계는 광범위한 각종 기능의 항상성 조절에 결정적인 역할을 하고 있으며, 저산소증, 출혈, 통증 등에 따른 스트레스 반응에 의해 자극되어 심박출량의 증가 및 조직으로 산소공급 향상을 위한 혈류 조절 반응이 나타나게 되나 주어진 환경에 따라 반응 정도는 다양하게 보고되고 있다. 고농도의 $N_2O$로 인해 발생된 저산소혈증 상태에서 혈역학적 변화가 저산소혈증을 발견하는 지표로서 유용한 지를 관찰하기 위해 본 실험에서는 마취후 기계적 환기를 시행한 한국산 잡견에서 고농도의 $N_2O$를 이용하여 흡입산소농도를 점진적으로 감소시킬 때 발생된 저산소혈증이 혈중 catecholarnine의 분비와 혈액 가스 및 혈역학적 변화를 비교 관찰하였다. Halothane으로 흡입 마취하여 기계적 환기를 시행한 뒤 10 마리의 한국산 잡견에서 21%, 15%, 10%, 5%의 산소를 5분씩 공급하여 혈역학상의 변화와 조직의 산소이용 상태 및 혈중 catecholamine치를 관찰하여 다음과 같은 결과를 얻었다. 조절호흡의 결과, 실험견은 등탄산성 저산소혈증이 초래되었으며 흡입산소농도의 감소 정도에 따라 동맥혈 및 혼합정맥혈의 산소분압 및 포화도가 감소되었고, 산소섭취율이 증가함에 따라 동정맥혈 산소함량의 차이는 증가하였으며 동시에 심박출량이 증가하는 대상성 반응을 보였다. 중심 정맥압은 10%와 5%의 흡입산소농도에서 측정치가 유의하게 증가되었고, 평균 폐동맥압은 10%와 5%의 흡입산소농도에서 각각 55% 및 82% 증가되었으며 폐혈관저항도 각각 76%, 95%로 유의하게 증가되었으나 전신혈관저항의 변화는 유의성이 없었다. 실험견에서 혈중 norepinephrine, epinephrine 및 dopamine의 대조치는 각각 $141.4{\pm}94.4$ pg/ml, $172.6{\pm}130.1$ pg/ml, $151.1{\pm}282$ pg/ml이었다. 15% 산소 흡입 시 norepinephrine, epinephrine 및 dopamine치는 모두 유의한 증가를 나타내기 시작하였고 dopamine은 10% 흡입산소농도에서 가장 많이 증가하였으나 5% 흡입산소농도에서는 오히려 감소되었고 60%의 흡입산소로 재산소화하는 동안 대조치 수준으로 회복되었다. 이에 비해 norepinephrine은 15%의 흡입 산소농도에서 74% 증가한 후 저산소혈증이 심화될수록 더욱 증가하는 양상이 계속되었다. Epinephrine은 대조치에 비해 15% 산소 흡입시 29% 증가하였으나 10% 및 5% 흡입산소농도에서 각각 382%, 350% 증가되었다. 60%의 흡입산소로 재산소화하였을 때는 norepinephrine과 epinephrine치는 감소되었으나 대조치보다는 여전히 증가되어 있었다. 이상의 결과로 볼때 마취후 고농도의 $N_2O$에 의한 저산소 가스 흡입은 혈중 catecholamine의 농도를 증가시키나 심혈관계 및 교감 신경계의 반응을 매우 둔화시키는 것으로 생각된다. 따라서 임상 마취에서 환자에게 고농도의 $N_2O$를 흡입시켜 저산소혈증이 초래되는 경우 혈압 및 맥박수의 변화는 저산소혈증을 발견하는 지표로 유용하지 않은 것으로 사료된다.

• 한국임상수의학회지
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• 제18권3호
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• pp.249-256
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• 2001

일반적인 마취용량에서의 enflurane과 propofol 단독 투여와 두 마취제의 병용 투여가 심혈관계에 미치는 영향을 비교하기 위해 본 실험을 수행하였다. 진정제(acepromazine 0.05 mg/kg) 투여 후 atropine(0.05 mg/kg)으로 전처치한 실험견 18두를 3개군으로 무작위 분류하고 각 군에 propofol infusion 0.5 mg/kg/min(Group I), enflurane 2.5 vol%(Group II), enflurane 1.0 vol%와 propofol infusion 0.25 mg/kg/min(Group III)을 각각 1시간 동안 산소 공급하에서 투여하였다. 대퇴동맥에 설치한 카테터를 통하여 전 실험기간에 걸쳐 Physiograph로 MAP(Mean Arterial Pressure), SAP(Systolic Arterial Pressure), DAP(Diastolic Arterial Pressure)를 기록하고 동맥혈을 채취하여 $Na^+, K^+, Cl^-$ 등 전해질 농도와, PaO$_2$(arterial oxygen tension), Pa$CO_2$(arterial carbon dioxide tension), pHa(arterial pH)를 측정하였다. 마취 전후의 체온, 심박수, 호흡수를 측정하였다. 특히 심혈관계와 관계된 검사(MAP, SAP, DAP, 체온)에서 마취유도 후 20분 동안은 모든 group에서 감소가 뚜렷하였다. Group II와 Group III에서 유의적인 감소(p<0.05, 0.01)를 보였으며 Group III는 Group I보다는 낮았으나 Group II보다는 높은 수치를 기록하였다. 산소공급과 관련하여 PaO$_2$의 증가(p<0.05, 0.01)가 있었으며 전해질 검사에서는 $Na^+와 K^+$의 유의적인 변화(p<0.05, 0.01)가 나타났다. 실험결과 유의성있는 변화가 나타났지만 모든 결과들이 정삼범위내에 있었고 뚜렷한 부작용이 나타나지 않았으므로 enflurane 1.0 vol%와 proofol 0.5 mg/kg/min 병용투여는 개 마취에 있엇 적용가능한 방법이라 생각된다.

• 대한간호학회지
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• 제31권6호
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• pp.1034-1043
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• 2001

To determine the frequency of past and present obesity among patients with NIDDM and to identify the differences of body fat, blood pressure and C-peptide/glucose ratio according to obese diabetic patients (BMI$\geq$25 kg/$m^2$) and nonobese (BMI<25 kg/$m^2$). Also the final factor is to observe the anthrometric change patterns in the study. Method: The weight at 20 years-old, previous maximal body weight, and acute weight loss were queried. Current height, body weight, BMI, waist & hip circumferences, waist-hip ratio, skinfold thicknesses, blood pressure, fasting blood glucose, and fasting C-peptide were measured in one hundred sixty-seven NIDDM patients. The differences of the parameters ccording to obese and nonobese, and three anthropometric change patterns were analyzed. Result: Results were as follows: 1. 66.5 % of the NIDDM patients had a history of past obesity as assessed by their maximum weight, while only 33.2% of them were currently obese (p's < 0.001). 2. The waist & hip circumferences, skinfold thicknesses, systolic, diastolic & mean arterial blood pressure in obese patients were greater than those of nonobese patients (all p's < 0.001). 3. The waist and the hip circumferences, and skinfold thicknesses (subscapula & triceps) were highest among the obese-obese group. WHR and abdominal skinfold thickness in the obese-obese and obese-nonobese groups were higher than those in the nonobese- nonobese group. Systolic & diastolic and mean arterial blood pressures in the obese-obese group were higher than those of obese-nonobese and nonobese-nonobese groups(all p's < 0.005). 4. The abdominal and subscapular skinfold thicknesses in female diabetic patients were greater than those of male patients (all p's <0.0001). Conclusion: Although most Korean NIDDM patients were previously obese, many of them were not obese during the course of the study. Greater central and upper body adiposicity and higher blood pressure was shown in obese diabetic patients. Also, greater central and upper body adiposicity was demonstrated in female diabetic patients.

• The Korean Journal of Pain
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• 제9권2호
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• pp.336-339
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• 1996

Stellate ganglion block which usually practiced in pain clinics may combined with hemodynamic changes because it blocks sympathetic nerve chains. We measured the hemodynamic changes with NCCOM3-$R7^{(R)}$ (BOMED, U.S.A.) which applicated bioimpedance method in twenty-two patients. Mean arterial pressure, heart rate, cardiac output, ejection fraction and left ventricle end diastolic volume (LEDV) were measured before stellate ganglion block (control), 1, 3, 5, 10 and 20 minutes after stellate ganglion block with 8 ml of 0.25% bupivacaine. The results were as follows: Mean arterial pressure decreased significantly (p<0.05) in 10, 20 minutes after stellate ganglion block comparing to control, but not clinically significant. Heart rate, cardiac output, ejection fraction and LVEDV showed no significant change compared to control value. These results showed that stellate ganglion block is a safe technique without significant hemodynamic changes.

• 대한한의학방제학회지
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• 제15권2호
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• pp.89-98
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• 2007

Kyungisan (KGS) has been used in oriental medicine for many centuries as a therapeutic agent for treatment of stroke caused by deficiency of qi(氣虛). This study was performed to evaluate effects of KGS extract on the regional cerebral blood flow(rCBF) and mean arterial blood pressure(MABP) in rats. The result of this study were as follow ; 1. KGS significantly increased rCBF irrelevant to MABP in normal rats, 2. To prescribe KGS after pretreatment with indomethacin(IDN) decreased rCBF as compared with control group to administered only KGS in normal rats. But the change of MABP is not significantly as compared with control group. 3. To prescribe KGS after pretreatment with methylen blue( MTB) decreased MABP and rCBF as compared with control group to administered only KGS in normal rats. Especially, it significantly decreased rCBF. These results suggest that KGS increase rCBF by enlargement diameter of pial artery in brain. The active mechanism of KGS is related with prostaglandin activated by cyclooxygenase. So, I suggest that KGS has an anti-ischemic effect through the improvement of cerebral blood flow and can be used for stroke.

• 성인간호학회지
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• 제16권3호
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• pp.388-397
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• 2004

Purpose: The purpose of this study was to explore the effectiveness of informational intervention delivered by electronic patient information board in the OR waiting room for reduction of anxiety of mothers with child having operation. Method: Nonequivalent control group non-synchronized design was used in this study. The subjects was 52 mothers whose children underwent elective surgery in one Pediatric Hospital. Informational intervention in this study consisted of four critical stages. State anxiety by Spielberger, mean arterial pressure, and heart rates at preoperative and postoperative period were measured. The data were analyzed by using Chi-Square test and t-test with SPSS/PC 10.0 program. Results: 1) There was a significant difference in the state anxiety between the control and the experimental groups. 2) There was no significant difference in the mean arterial pressure between the two groups. 3) There was no significant difference in the heart rate between the two groups. Conclusion: The results of this study indicate that informational intervention delivered by electronic patient information board would be an effective intervention during the operation in reducing anxiety of mothers with child having operation.

• 대한한방소아과학회지
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• 제23권3호
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• pp.241-262
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• 2009

Objectives This study is designed to investigate the effects of Jujadokseo-hwan on the brain ability and inducing oxidative stresses. Methods We measured the changes of regional cerebral blood flow and mean arterial blood pressure. Then we analyzed histological examination, immunohistochemistric response and anti-oxidant activity of Jujadokseo-hwan. Results 1. Treatment of Jujadokseo-hwan significantly increased regional cerebral blood flow but decreased mean arterial blood pressure. 2. Treatment of Jujadokseo-hwan-induced increase of regional cerebral blood flow was significantly inhibited by pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase. 3. In histological examination through TTC stain, group I was no change, but group II showed that discolored in the most cortical part. Group III showed that decreased discolor in the cortical part. 4. In immunohistochemistric response of BDNF, group II showed that lower response effect. Group III showed that increase response effect. 5. Treatment of Jujadokseo-hwan increased proliferation rates of Glial cell effectively 6. Treatment of Jujadokseo-hwan accelerated proliferation rates of C6 cells in vitro. In addition, protective effects on cell death induced by paraquat, rotenone and hydrogen peroxide. In addition, activity of SOD were increased by treatment with Jujadokseo-hwan. Conclusions In conclusion, Jujadokseo-hwan can improve of the brain ability, learning ability, memory ability and induce ischemic brain injuries.

• 성인간호학회지
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• 제21권2호
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• pp.141-154
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• 2009

Purpose: The purpose of this study was to compare the difference of change in oxygen saturation, vital signs and suction time taken for the suctioning during endotracheal suctioning performed with closed suction system and with opened suction system. Methods: Data were collected from 31 adult patients with ventilator treatment who were admitted to a university hospital in Seoul and the collection period was from July 1 to November 15, 2005. Oxygen saturation, heart rate, respiration rate and mean arterial pressure were collected immediately prior to the suctioning intervention, during and 1 and 5 minutes after the suctioning from opened suction system and closed suction system. Results: 1) The difference in oxygen saturation was statistically significant in recovery time for oxygen saturation to return to baseline values after suctioning was significantly rapid on closed suction system (p<.05). 2) The difference in heart rate, respiration rate and mean arterial pressure was statistically insignificant 3) The suction time was shorter in closed suction system. Conclusion: Closed suction system is more efficient, as compared with the open suction system in the ventilator treatment.