• Title/Summary/Keyword: Cardiovascular system

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Design and Implementation of Electrocardiogram Data Interpretation system using AdaBoost Algorithm (AdaBoost 알고리즘을 이용한 심전도 정보 판독 시스템의 설계 및 구현)

  • Lim, Myung-Jae;Hong, Jin-Kyoung;Kim, Kyu-Ho;Choi, Mi-Lim
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.10 no.2
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    • pp.129-134
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    • 2010
  • Diseases such as cardiovascular illnesses, according to the National Statistical Office opened reveals that 600-800 people were killed, blood pressure, arteriosclerosis, heart disease, stroke, etc. will be a flow of blood disorders that occur in cardiovascular illnesses today are fulfilling the Master / Slave samangryulin disease appears high. Died of cardiovascular disease also told them the correct first aid survival when patients are accounted for approximately 40% of emergency rapid response is required. Therefore, this paper, the weak classifier in the AdaBoost algorithm to generate a strong classifier by combining effects throughout the analysis to measure the ECG, and cardiovascular disease that occurred to you as soon as the emergency management system that can deliver on the proposed Desk was. The electrocardiogram data measured by the ZigBee-based sensors, communication devices and emergency transport for emergency alarms in the determination and monitoring of the management desk by providing health services to enable the delivery was fast.

Korean Red Ginseng Water Extract Restores Impaired Endothelial Function by Inhibiting Arginase Activity in Aged Mice

  • Choi, Kwanhoon;Yoon, Jeongyeon;Lim, Hyun Kyo;Ryoo, Sungwoo
    • The Korean Journal of Physiology and Pharmacology
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    • v.18 no.2
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    • pp.95-101
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    • 2014
  • Cardiovascular disease is the prime cause of morbidity and mortality and the population ages that may contribute to increase in the occurrence of cardiovascular disease. Arginase upregulation is associated with impaired endothelial function in aged vascular system and thus may contribute to cardiovascular disease. According to recent research, Korean Red Ginseng water extract (KRGE) may reduce cardiovascular disease risk by improving vascular system health. The purpose of this study was to examine mechanisms contributing to age-related vascular endothelial dysfunction and to determine whether KRGE improves these functions in aged mice. Young ($10{\pm}3$ weeks) and aged ($55{\pm}5$ weeks) male mice (C57BL/6J) were orally administered 0, 10, or 20 mg/mouse/day of KRGE for 4 weeks. Animals were sacrificed and the aortas were removed. Endothelial arginase activity, nitric oxide (NO) generation and reactive oxygen species (ROS) production, endothelial nitric oxide synthase (eNOS) coupling, vascular tension, and plasma peroxynitrite production were measured. KRGE attenuated arginase activity, restored nitric oxide (NO) generation, reduced ROS production, and enhanced eNOS coupling in aged mice. KRGE also improved vascular tension in aged vessels, as indicated by increased acetylcholine-induced vasorelaxation and improved phenylephrine-stimulated vasoconstriction. Furthermore, KRGE prevented plasma peroxynitrite formation in aged mice, indicating reduced lipid peroxidation. These results suggest KRGE exerts vasoprotective effects by inhibiting arginase activity and augmenting NO signaling and may be a useful treatment for age-dependent vascular diseases.

Effects of Personalized Complex Aerobic Training Programs using Wearable Device on Cardiovascular and Respiratory Functions of Female Elderly

  • Song, Jun-Young;Park, Sam-Ho;Kim, Byeong-Soo;Ha, Tae-Won;Son, Jin-Kyu;Lee, Myung-Mo
    • Physical Therapy Rehabilitation Science
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    • v.10 no.4
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    • pp.421-429
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    • 2021
  • Objective: The purpose of this study was to examine the effect of personalized complex aerobic training programs using wearable device on cardiovascular and respiratory functions in community based female elderly. Design: One group pre-post intervention study. Methods: Twenty-one older female participants lived in 'D' city were included. The personalized complex aerobic training program using wearable devices was applied to all participants for 4 weeks, 3 times a week, 30 minutes for per session. The participants' blood pressure, heart rate, oxygen saturation, respiration rate, submaximal exercise stress test, pulmonary function test and respiratory muscle strength test were evaluated before and after the complex training program. Results: After intervention, resting diastolic blood pressure, resting systolic blood pressure and the systolic blood pressure after submaximal exercise stress test were significantly decreased over time (p<0.05), and the submaximal exercise stress test duration were significantly increased over time (p<0.05). The maximal inspiratory pressure (MIP) was significantly increased compare to before the intervention (p<0.05). Conclusions: This study showed that personalized complex training program using wearable device can provide personalized exercise intensity according to cardiopulmonary function that give feedback, and these interventions have a significant effect on improving the cardiovascular and respiratory system functions of the female elderly in the community dwelling.

Effect of Electroacupuncture at SP-6 with Different Durations on Minimum Alveolar Concentration and the Cardiovascular System under Isoflurane Anesthesia in Dogs (개에서 Isoflurane 마취시 SP-6 혈위의 전침자극시간이 최소폐포농도 및 심맥관계에 미치는 영향)

  • Jeong, Seong-Mok
    • Journal of Veterinary Clinics
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    • v.19 no.3
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    • pp.283-289
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    • 2002
  • The effects of electroacupuncture (EA) at SP-6 with different durations on the minimum alveolar concentration (MAC) and on the cardiovascular system were evaluated in dogs under isoflurane anesthesia. Eight healthy male beagles were randomly assigned to four study groups (n = 5/group) with washout period of 7 days for recovery and anesthetic withdrawal between experiments. Four study groups were control, nonacupoint electrical stimulation (NA), EA for 30 minutes (SP-6) and continuous EA for 70 or 90 minutes (SP-6C). For the nonacupoint electrical stimulation group, needles were inserted into the nonacupoint at the muscle bellies of left triceps brachii and right quadriceps femoris. MAC and cardiovascular parameters were determined after EA at SP-6 acupoint and at nonacupoint. Thirty minutes of EA and continuous EA until re-determination of MAC at SP-6 acupoint lowered the MAC of isoflurane by 21.3$\pm$8.0% and 16.1$\pm$4.6%, respectively (p<0.05). The decrements in MAC values were not significantly different between two EA groups. However, electrical stimulation of nonacupoint did not induce a significant change in MAC. In SP-6 and SP-6C groups, significant changes in cardiovascular parameters were not observed. These results indicate that EA at SP-6 have an advantage in isoflurane anesthesia in terms of reducing the requirement for anesthetics and minimizing cardiovascular side effects. EA for 30 minutes at maximum might be the sufficient time to produce acupuncture analgesia.

Experimental Studies on the Efficacy of Socheongryoung-tang (小靑龍湯의 效能에 關한 實驗的 硏究)

  • An, Cheol
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.1 no.1
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    • pp.25-38
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    • 1988
  • In order to evaluate the relationship between the bibliographical and clinical effectiveness of Socheongryoungtang, this study was carried out to investigate the effects of Socheongryoungtang on the respiratory system, cardiovascular system and isolated organ in the experimental animals. The following results of Socheongryoungtang were obtained; 1. The relaxing effect on the muscular contraction of isolated ileum induced by acetylcholine chloride, barium chloride and histamine${\cdot}$2HCl was recognized in mice, rat and guinea-pig. 2. The effect of direct vasodilatation was noted in rabbit. 3. The effect of hypotensor was recognized in rabbit. 4. The antihistamine effect was noted on both isolated ileum and tracheal strip-chain in guinea-pig. 5. The inhibitory effect on gastric ulcer induced by histamine${\cdot}$2HCl was noted in rat. 6. The inhibitory effect on vascular permeability was revealed in mice. 7. The antitussive effect was recognized in both dog and cat. 8. The effect of expectorant was recognized in rabbit. According to the above results, we has recognized that Socheongryoungtang has good efficacy for bibliographical and clinical diseases caused from respiratory system (especially allergic rhinitis etc.), cardiovascular system and digestive system.

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Reproducibility of Regional Pulse Wave Velocity in Healthy Subjects

  • Im Jae-Joong;Lee, Nak-Bum;Rhee Moo-Yong;Na Sang-Hun;Kim, Young-Kwon;Lee, Myoung-Mook;Cockcroft John R.
    • International Journal of Vascular Biomedical Engineering
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    • v.4 no.2
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    • pp.19-24
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    • 2006
  • Background: Pulse wave velocity (PWV), which is inversely related to the distensibility of an arterial wall, offers a simple and potentially useful approach for an evaluation of cardiovascular diseases. In spite of the clinical importance and widespread use of PWV, there exist no standard either for pulse sensors or for system requirements for accurate pulse wave measurement. Objective of this study was to assess the reproducibility of PWV values using a newly developed PWV measurement system in healthy subjects prior to a large-scale clinical study. Methods: System used for the study was the PP-1000 (Hanbyul Meditech Co., Korea), which provides regional PWV values based on the measurements of electrocardiography (ECG), phonocardiography (PCG), and pulse waves from four different sites of arteries (carotid, femoral, radial, and dorsalis pedis) simultaneously. Seventeen healthy male subjects with a mean age of 33 years (ranges 22 to 52 years) without any cardiovascular disease were participated for the experiment. Two observers (observer A and B) performed two consecutive measurements from the same subject in a random order. For an evaluation of system reproducibility, two analyses (within-observer and between-observer) were performed, and expressed in terms of mean difference ${\pm}2SD$, as described by Bland and Altman plots. Results: Mean and SD of PWVs for aorta, arm, and leg were $7.07{\pm}1.48m/sec,\;8.43{\pm}1.14m/sec,\;and\;8.09{\pm}0.98m/sec$ measured from observer A and $6.76{\pm}1.00m/sec,\;7.97{\pm}0.80m/sec,\;and\;\7.97{\pm}0.72m/sec$ from observer B, respectively. Between-observer differences ($mean{\pm}2SD$) for aorta, arm, and leg were $0.14{\pm\}0.62m/sec,\;0.18{\pm\}0.84m/sec,\;and\;0.07{\pm}0.86m/sec$, and the correlation coefficients were high especially 0.93 for aortic PWV. Within-observer differences ($mean{\pm}2SD$) for aorta, arm, and leg were $0.01{\pm}0.26m/sec,\;0.02{\pm}0.26m/sec,\;and\;0.08{\pm}0.32m/sec$ from observer A and $0.01{\pm}0.24m/sec,\;0.04{\pm}0.28m/sec,\;and\;0.01{\pm}0.20m/sec$ from observer B, respectively. All the measurements showed significantly high correlation coefficients ranges from 0.94 to 0.99. Conclusion: PWV measurement system used for the study offers comfortable and simple operation and provides accurate analysis results with high reproducibility. Since the reproducibility of the measurement is critical for the diagnosis in clinical use, it is necessary to provide an accurate algorithm for the detection of additional features such as flow wave, reflection wave, and dicrotic notch from a pulse waveform. This study will be extended for the comparison of PWV values from patients with various vascular risks for clinical application. Data acquired from the study could be used for the determination of the appropriate sample size for further studies relating various types of arteriosclerosis-related vascular disease.

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Screening of Antioxidative, Anti-thrombotic and Anti-atherosclerotic Effects of Moutan Root Bark Extracts (Moutan Root Bark가 항산화활성과 LDL 산화 억제 및 항철소판 응접에 미치는 영향)

  • Ban, Chang-Kye;Lee, Min-Ja;Lee, Hye-Sook;Jung, Hyun-Jung;Kim, Hyuck;Kim, Jai-Eun;Park, Sun-Dong;Park, Won-Hwan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.1
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    • pp.135-143
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    • 2009
  • There is currently increased interest in the identification of antioxidant compounds that are pharmacologically potent and have low or no side effects. Plants produce significant amounts of antioxidants to prevent the oxidative stress caused by photons and oxygen, therefore they represent a potential source of new compounds with antioxidant activity. Moutan Root Sark (MRS) has been frequently used as analgesic. antispasmodic, anti-inflammatory and remedies for female diseases. In this study. the antioxidant activity of extract from MRS was studied in vitro methods by measuring the antioxidant activity by TEAC, measuring the scavenging effects on reactive oxygen species (ROS) [superoxide anion, hydroxyl radical] and on reactive nitrogen species (RNS) [nitric oxide and peroxynitrite] as well as measuring the inhibitory effect on $Cu^{2+}$ induced human LDL oxidation and the inhibitory effect on collagen induced platelet aggregation. The MRS extracts were found to have a potent scavenging activity, as well as an inhibitory effect on LDL oxidation and on platelet aggregation. In conclusion, the MRS extracts have anti-oxidative and anti-atherosclerotic effects in vitro system, which can be used for developing pharmaceutical drug against oxidative stress and atherosclerosis.

A Case of Pulmonary Langerhans Cell Histiocytosis associated with Central Diabetes Insipidus in Adult -A case report - (성인에서 발견된 중추성 요붕증이 합병된 폐 랑게르한스 세포 조직구증 -1예 보고-)

  • Yoo Byung Su;Lee Jae Woong;Jo Tae Jun;Hong Ki Woo;Kim Kun Il;Lee Weon Yong;Kim Dong Gyu;Jun Sun Young
    • Journal of Chest Surgery
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    • v.38 no.12 s.257
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    • pp.866-869
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    • 2005
  • Langerhans Cell Histiocytosis (LCH) is a pathologic proliferation and infiltration of various organs by Langerhans' cells of unknown cause. Incidence rate of one million parties 3$\∼$4 is seen in young child but the incidence is not sure in adult. Organ systems involved by LCH may include skin, ear, bone marrow, liver, spleen, lung, pituitary gland - hypothalamus and Gl tracts. In case pituitary-hypothalamus axis are involved, diabetes insipidus happened. Primary Pulmonary Langerhans Cell Histiocytosis(PLCH) with uninvolvement of other organs is rare and accompanied diabetes insipidus is more rare. There are many cases of LCH with diabetes insipidus involve such as central nervous system except lung. PLCH accompany central diabetes insipidus is only 1 case. We report a case of PLCH that accompany central diabetes insipidus with literature investigation in Department of Thoracic and Cardiovascular Surgery, Hallym University.

Screening of Anti-atherosclerotic Effect of Lonicera Flower by Antioxidative and Anti-thrombotic Mechanism (Lonicera Flower의 항산화활성과 LDL 산화 억제효과 및 혈전용해능에 관한 연구)

  • Ju, Shin-Tak;Lee, Min-Ja;Lee, Hye-Sook;Jung, Hyun-Jung;Kim, Hyuck;Kim, Jai-Eun;Park, Sun-Dong;Park, Won-Hwan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.6
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    • pp.1509-1517
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    • 2008
  • The flowers and buds of Lonicera Flower (LF), are used in Korean herbal medicine for latent-heat-clearing, antipyretic, detoxicant and anti-inflammatory ailments. This plant is used worldwide for the treatment of many types of inflammatory disease including respiratory infections, diabetes mellitus, rheumatoid arthritis and play an important role in immune reaction. These pharmaceutical effects of LF looks like to be related to its antioxidant capacity and phytochemicals containing in LF. In this study, the antioxidant activity of extract from LF was studied in vitro methods by measuring the antioxidant activity by TEAC, measuring the scavenging effects on reactive oxygen species (ROS) [superoxide anion, hydroxyl radical] and on reactive nitrogen species (RNS) [nitric oxide and peroxynitrite] as well as measuring the inhibitory effect on $Cu^{2+}$ induced human LDL oxidation and the inhibitory effect on collagen induced platelet aggregation. The LF extracts were found to have a potent scavenging activity, as well as an inhibitory effect on LDL oxidation and on platelet aggregation. In conclusion, the LF extracts have anti-oxidative and anti-atherosclerotic effects in vitro system, which can be used for developing pharmaceutical drug against oxidative stress and atherosclerosis.

Effects of Uwhangchungsimwon on Arterial Stiffness (우황청심원이 정상인의 동맥경직도에 미치는 영향)

  • Rhee, Jun-woo;Moon, Sang-kwan;Park, Seong-uk;Jung, Woo-sang;Park, Jung-mee;Ko, Chang-nam;Cho, Ki-ho;Bae, Hyung-sup;Kim, Young-suk
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.7 no.1
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    • pp.17-22
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    • 2006
  • Objectives : Uwhangchungsimwon (UC) is one of the famous herbal medicine frequently used for stroke, hypertension, and atherosclerosis, etc. Therefore, we intended to examine if UC could have therapeutic effect on arterial stiffness by assessing Cardio-Ankle Vascular lndex (CAVI). Methods : We enrolled 38 healthy male subjects (28±4.41 years old) and divided them into two groups (UC and control group). The UC group (N=22) were treated with 1 pill of UC and monitored by CAVI every hour for 6 hours. The control group(N=16) did not receive any medicine and were also monitored by CAVI the same manner as the UC group. In both group, we also assessed each subject's Yin-Yang pattern score by the diagnostic scoring system. In analysis, we compared the difference of CAVIs between the UC and the control group considering subject's Yin-Yang pattern. Results : There was no significant difference in the change of CAVI between the UC and the control group. After excluding Yang-pattern subjects in both group, however, we could observe that CAVI decreased significantly 5 hours after UC administration compared with the corresponding CAVI in the control group (P=0.025). In the repeated measure analysis, the between-subjects effect had statistical significance (P=0.035). Conclusion : According to these results, we suggest that UC have therapeutic effect on arterial stiffness especially after taking oriental medical diagnosis into consideration.

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