• Title/Summary/Keyword: cardiovascular activities

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Effect of the Changes in Arterial Carbon Dioxide Pressure on the Neuronal Activities of Rostral Ventrolateral Medulla in the Cat (고양이에서 동맥혈 탄산가스 분압의 변동이 연수의 통각정보 처리과정에 미치는 영향)

  • Lee, Young-Tak;Kim, Chong-Whan;Kim, Jun
    • Journal of Chest Surgery
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    • v.29 no.5
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    • pp.477-486
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    • 1996
  • Endogenous analgesic systems are known to be activated by peripheral noxious stimulation as well as arterial carbon dioxide elevation. In the present study, neuronal Activities in the rostral ventrolateral med- ulla were identified and classified in according to their rhythmic activities, and their responses to noxious peripheral nerve stimulations before and after elevating the arterial carbon dioxide partial pressure were investigated Using extracellular recording technic, a total of 53 spontaneously active neurons were recorded from the rostral ventrolateral medulla in u-chloralose anesthetized cats. These were classified as cardiovascular (28), respiratory (16), both cardiovascular and respiratory (2) and noncardiovascular - nonrespiratory (7). - Among the 28 cardiovascular neurons eleven showed increased activities during arterial hypercapnia, thirteen showed decreased responses, and four showed no change. Nine respiratory neurons showed increased responses to arterial hypercapnia, six showed decreased responses and one showed no change. neither of the cardiovascular and respiratory neurons showed significant change in its activity during ar- terial hypercapnia, however, four of the noncardiovascular - nonrespiratory neurons exhibited decreased their activities in response to arterial hypercapnia while two exhibited increased activities. Arterial hypercapnia increased the responses of cardiovascular neurons to peripheral nerve stimulation with C-inteniity, while not changing the responses to Ak_stimulation significantly . From the above results it was conclllded that during arterial hypercapnia, some cardiovascular neurons and respiratory neurons have increased activities as well as increased reponses to C-Hber stimulation.

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Historical Perspectives of Korean Society for Thoracic and Cardiovascular Surgery: Inauguration and Activities of the Historical Records Preservation Committee

  • Park, Kook-Yang;Lee, Sungsoo;Chang, Byung-Chul;Oh, Tae Yun
    • Journal of Chest Surgery
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    • v.52 no.4
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    • pp.191-194
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    • 2019
  • The Korean Society for Thoracic and Cardiovascular Surgery (KTCVS) was founded in 1968 and celebrated the 50th anniversary of its founding in 2018. The launch of the KTCVS may seem somewhat recent, given that the American Association for Thoracic Surgery was founded in 1917. However, considering the circumstances of the Korean medical community after the Japanese occupation (1910-1945), World War II (1940-1945), and the Korean War (1950-1953), this apparent delay is understandable. Even before the foundation of the KTCVS, the early pioneers of thoracic and cardiovascular surgery promptly adopted medical technologies from more advanced countries such as the United States, and contributed significantly to both cardiac and thoracic surgery despite difficult circumstances. In 2012, before the 50th anniversary of the founding of the KTCVS, members shared the opinion that objective records of the activities of the early pioneers should be identified and preserved, and reacted positively towards the necessity for historians who would preserve such records. With this background, the Historical Records Preservation Committee of the KTCVS (hereinafter, referred to as 'the Committee') was launched. The Committee published a white paper on the history of thoracic and cardiovascular surgery in 2015 and held an exhibition of the achievements of the pioneers at the 50th anniversary of the founding of the KTCVS. The Committee also published a book entitled "The history of Korean thoracic surgery with photographs: celebrating the 50th anniversary of the society." The Committee will keep making efforts to find and preserve materials related to activities during the early development of thoracic and cardiovascular surgery in Korea.

The Relationship of Diet, Physical Activities, Self-efficacy, and Self-care with Cardiovascular Risk Factors among Clients with Type II Diabetes (제 2형 당뇨 환자의 식이, 신체활동, 자가간호, 자기효능감과 심혈관 합병증 위험요소간의 관계)

  • Lee, Hae Jung;Kim, Myung Soo
    • Korean Journal of Adult Nursing
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    • v.19 no.2
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    • pp.283-294
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    • 2007
  • Purpose: The purpose of this study was to identify predictors of cardiovascular risk factors of type 2 diabetic patients. Methods: Diabetic patients (N=160) were interviewed from November, 2003 to June, 2004. The 24 hour dietary recall, the International Physical Activity Questionnaire, the Diabetes Management Self-Efficacy Scale for patient with Type 2 diabetes, the Revised Summary of Diabetes Self-Care Activities Measure Scale and Parma Cardiovascular Risk Index were used to measure the predictors. Data were analyzed by descriptive analyses, Pearson correlation coefficients, and stepwise multiple regression using the SPSS WIN 10.0. Results: Mean dietary intakes of the participants were protein(P) of 64.5g, carbohydrate(C) of 280.74g, fat(F) of 30g, and calcium of 511.45mg. The ratio of CPF was 75:17:8. About 45% of the participants didn't exercise on a regular basis. The levels of self-efficacy, self-care, and cardiovascular risk factors of the participants were moderate. Self-efficacy was the most important predictor of cardiovascular risk factors along with self-care, exercising for more than 6 months, carbohydrate intakes and levels of physical activities. Conclusion: The findings of the study suggest that intervention programs increasing self-efficacy on diabetic management would be more beneficial than the fractional approach focusing only on diet or physical activities.

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Effects of polyphenols of Cocos nucifera husk fibreon selected indices of cardiovascular diseases in mice

  • Adebayo, Joseph Oluwatope;Adewumi, Olumuyiwa Sunday;Baruwa, Simbiat Titilayo;Balogun, Elizabeth Abidemi;Malomo, Sylvia Orume;Olatunji, Lawrence Aderemi;Soladoye, Ayodele Olufemi
    • CELLMED
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    • v.6 no.2
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    • pp.12.1-12.7
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    • 2016
  • Cocos nucifera (C. nucifera) oil is indigenously used to treat cardiovascular diseases. However, coconut husk fibre (which is rich in polyphenols) has not been screened for this property. Based on the ethnomedicinal use of polyphenols in treating cardiovascular diseases, this study was carried out to evaluate the effects of polyphenols of C. nucifera husk fibre on selected cardiovascular disease indices in mice. Fifty adult male Swiss albino mice were assigned randomly into five groups (A-E). Mice in groups B, C, D and E were administered 31.25, 62.5, 125, and 250 mg/kg body weight polyphenols of ethyl acetate extract of C. nucifera husk fibre respectively while the control group (A) mice received 5% DMSO for seven days. The mice were sacrificed twenty four hours after the last administration of polyphenols. Heart and plasma lactate dehydrogenase (LDH), alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) activities and plasma lipid profile were determined. Results revealed significant reduction (*p< 0.05) in plasma levels of total cholesterol and LDL-cholesterol with no significant change (*p> 0.05) in HDL-cholesterol, triglyceride and VLDL levels in the plasma at all doses of polyphenols administered compared to controls. There was significant reduction (*p< 0.05) in the activities of heart AST and LDH while plasma ALT, AST, and ALP activities were not significantly altered (*p> 0.05) at all doses of polyphenols administered compared to controls. These results suggest that the polyphenols of C. nucifera husk fibre possess cardio-protective properties and also indicate their possible use in the treatment of cardiovascular diseases.

Antihyperlipidemic and Antioxidant Effects of Insamsansa-eum (Renshenshanzha-yin) in Hypercholesterolemic Rats

  • Kim, Young-Suk;Kang, Kyoung-Suk;Jung, Woo-Sang;Moon, Sang-Kwan;Park, Jung-Mi;Ko, Chang-Nam;Cho, Ki-Ho;Bae, Hyung-Sup;Park, Seong-Uk
    • The Journal of Korean Medicine
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    • v.27 no.4
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    • pp.96-104
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    • 2006
  • Insamsansa-eum (Renshenshanzha-yin, ISE) is a new medicine developed to prevent and treat atherosclerotic diseases. To explore antiatherosclerotic effects of ISE, we evaluated the effects of ISE on serum lipids of hypercholesterolemic rats in vivo, as well as its antioxidant activities in vitro. In vitro, ISE showed 1,1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide radical scavenging activities, and inhibited hemolysis induced by 2,2' -azobis-2-amidinopropane dihydrochloride (AAPH) in a dose-dependent manner. In vivo, ISE significantly inhibited increase of total cholesterol (TC), low-density lipoprotein cholesterol (LDL) and triglyceride (TG) values in both high cholesterol diet and Triton WR-1339 models. It also significantly inhibited decrease of high-density lipoprotein cholesterol (HDL) value in the high cholesterol diet model. Collectively, our data suggest that ISE has the potential to control the risk of atherosclerosis development.

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Antihyperlipidemic and Antioxidant Effects of the Mixture of Ginseng Radix and Crataegi Fructus: Experimental Study and Preliminary Clinical Results

  • Ko, Chang-Nam;Park, Seong-Uk;Chang, Gyu-Tae;Jung, Woo-Sang;Moon, Sang-Kwan;Park, Jung-Mi;Cho, Ki-Ho
    • Journal of Ginseng Research
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    • v.35 no.2
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    • pp.162-169
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    • 2011
  • The mixture of Ginseng Radix and Crataegi Fructus (Gen-CF) was developed to increase the pharmacological effect of ginseng in the treatment of hypercholesterolemia and prevention of cardiovascular disease. This study evaluated the effects of Gen-CF on serum lipids of hypercholesterolemic rats in vivo, as well as its antioxidant activities in vitro, and explored its clinical effects on patients with hypercholesterolemia. In vitro, Gen-CF displayed 1,1-diphenyl-2-picrylhydrasyl and superoxide radical scavenging activities, and inhibited hemolysis induced by 2,2'-azobis-2-amidinopropane dihydrochloride in a dose-dependent manner. In vivo, Gen-CF significantly inhibited the increases of total cholesterol, low-density lipoprotein cholesterol and triglyceride in high cholesterol-diet and Triton WR-1339 models. It also significantly inhibited the decrease of high-density lipoprotein cholesterol in these models. In the clinical trial, Gen-CF significantly lowered total cholesterol, low-density lipoprotein cholesterol, triglyceride, total lipid and phospholipid, with no adverse events, including hepatic or renal toxicity. The data suggest that Gen-CF has the potential to treat hypercholesterolemia and prevent cardiovascular disease.

Plasmin Inhibitory Activity of Medicinal Plants (수종 식물의 Plasmin 저해 활성 검색)

  • Park, Mi-Hyoun;Jung, Hyun-Ju;Bae, Ki-Hwan;Kim, Young-Ho
    • Korean Journal of Pharmacognosy
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    • v.29 no.3
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    • pp.149-154
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    • 1998
  • Binding of urokinase-type plasminogen activator to its cellular receptor accelerate production of plasmin from plasminogen on the cell surface. Plasmin can digest extracellular matrix components and basement membranes through activating certain proMMPs, which is related to the invasiveness to the cells. Plasmin also acts the regulation of blood coagulation and relates closely to cardiovascular diseases such as stroke and coronary occlusion. Therefore, its inhibitors may be useful as antimetastatic agents and to the treatment of cardiovascular diseases. To search for plasmin inhibitors from plant resources, we screened plasmin inhibitory activities with 76 methanol extract of plant species. Among them, three plant samples showed strong inhibitory activities (>70%) and thirteen plant samples showed more than 50% inhibitory activities of plasmin. Their inhibitory activities were not directly related with uPA inhibitory activites and cell viability.

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Effectiveness and Approach of Rehabilitation in Patients With Acute Heart Failure: A Review

  • Kensuke Ueno;Hidehiro Kaneko;Hidetaka Itoh;Norifumi Takeda;Hiroyuki Morita;Katsuhito Fujiu;Kentaro Kamiya;Issei Komuro
    • Korean Circulation Journal
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    • v.52 no.8
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    • pp.576-592
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    • 2022
  • Acute heart failure is associated with high mortality and frequent rehospitalization, resulting in enormous healthcare costs and declining physical function, activities of daily living, and quality of life. Cardiac rehabilitation has been recommended as one of the non-pharmacologic treatments for patients with heart failure. However, much of the evidence for cardiac rehabilitation interventions reported to date has been limited to chronic heart failure. In recent years, the effectiveness of rehabilitation intervention in patients with acute heart failure has been reported, led by the Rehabilitation Therapy in Older Acute Heart Failure Patients (REHAB-HF) trial. This review overviews the recent evidence of rehabilitation in patients with acute heart failure.

Sex differences in Risk of Cardiovascular Disease, Depression and Self-Care Activities in Type 2 Diabetes with Metabolic Syndrome (대사증후군을 동반하는 당뇨병 환자의 심혈관 위험도, 우울과 자가 관리활동 - 성별비교 -)

  • Kim, Chun-Ja
    • Korean Journal of Adult Nursing
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    • v.20 no.1
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    • pp.33-43
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    • 2008
  • Purpose: This study was to investigate the sex differences in risk of cardiovascular disease(CVD), depression and self-care activities in type 2 diabetes with metabolic syndrome. Methods: The descriptive correlational design was conducted using a convenient sample. One hundred and twenty-nine diabetic patients with metabolic syndrome were recruited in a university hospital. The data were analyzed using descriptive statistics, the Pearson correlation coefficient, Students' t-test, one way ANOVA, and stepwise multiple regression with SPSS/WIN 12.0. Results: The risk of CVD in diabetic patients with metabolic syndrome indicated a significantly negative correlation to self-care activities and age, and positive correlation to waist_C, SBP, DBP and TG. The metabolic syndrome is associated with an approximate 1.7-fold increase in the relative risk in CVD in diabetic women. The main significant predictors influencing CVD risk of diabetes with metabolic syndrome were age, waist_C, SBP and TG, which explained about 29.7%. Conclusion: These results indicate that patients with diabetes with metabolic syndrome with a high degree of waist_C, SBP and TG are likely to be high in risk of CVD.

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Quality Characteristics and Cardiovascular Activities of Korean Traditional Wines and Liquors

  • Yu, Hyung-Eun;Lee, Dae-Hyoung;Lee, Ju-Hyun;Choi, Sin-Yang;Lee, Jong-Soo
    • Food Science and Biotechnology
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    • v.14 no.6
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    • pp.772-777
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    • 2005
  • The goal of this study was to screen and characterize the physiological functions of Korean traditional wines (TW) and liquors (TL). Forty-two TW and TL were collected and evaluated for quality and cardiovascular activities. Ethanol content ranged from $9.0%{\sim}41%$, and pH ranged from $3.0{\sim}7.8$, and they also contained 0.01% to 0.67% of total acid. Samples contained a maximum of 2.0% of crude protein and $0.1%{\sim}14.0%$ of reducing sugar. Commercial CM-wine showed the highest antihypertensive angiotensin I-converting enzyme (ACE) inhibitory activity, 85.9%. The greatest fibrinolytic activity and platelet aggregation inhibitory activity were also found in commercial CM-wine (31.8U) and commercial SS2-wine (38.6 %), respectively. Commercial SHBI-liquor showed the highest HMG-CoA reductase inhibitory activity, 78%. The ACE inhibitor from commercial CM-wine was a peptide compound and also showed an antihypertensive effect in spontaneous hypertensive rats at a dosage of 1.5 mg/kg.