• 대한물리의학회지
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• 제14권1호
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• pp.63-73
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• 2019

PURPOSE: This study examined the effects of cardiopulmonary physiotherapy on the cardiopulmonary function, metabolism, inflammatory markers, and quality of life in patients with coronary artery disease who underwent percutaneous coronary intervention (PCI). METHODS: Electronic bibliographic databases of a regional information sharing system (RISS) and PubMed were searched to identify studies with randomized and non-randomized controlled trials. As the final outcome, 320 publications were identified and 18 studies met the inclusion and exclusion criteria. All studies were assessed for the quality of study using Cochrane's risk of bias. RESULTS: Sixteen studies met the inclusion criteria, in which meta-analysis had been conducted to examine the effectiveness of cardiopulmonary physiotherapy on the cardiopulmonary function, metabolism, inflammatory markers, and quality of life in patients undergoing PCI. Meta-analysis based on a random effect model showed that the cardiopulmonary physiotherapy was beneficial in improving the cardiopulmonary function, metabolism, inflammatory markers, and quality of life. In particular, there was a significant effect on the peak oxygen uptake (effect size 5.30%; 95% confidence interval 3.62~6.97). Cardiopulmonary physiotherapy for a during period of 6 weeks or more was effective in significantly improving the cardiopulmonary function and metabolism function in a subgroup analysis, but cardiopulmonary physiotherapy for less than 6 weeks was not effective. CONCLUSION: Cardiopulmonary physiotherapy has positive effects on the cardiopulmonary function, metabolism, inflammatory markers, and quality of life in patients undergoing PCI.

• 정형스포츠물리치료학회지
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• 제14권2호
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• pp.81-90
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• 2018

Purpose: The purpose of this study was to investigate the effect of boxing combined training on cardiopulmonary function and health-related fitness in male college students over a period of eight weeks. Methods: Eighteen male students were randomly assigned to the following groups: boxing exercise (n=6), aerobic exercise e(n=6), and non-exercise (n=6). The exercise program was conducted for 50 minutes every three weeks, for a total of eight weeks. After eight weeks, the factors that affected the measurement variables were analyzed, and the following results were obtained. Results: Participants in the eight-week boxing exercise group and the aerobic exercise group showed significantly increased maximal oxygen, which was not observed in the control group. The body mass index decreased in the aerobic exercise group, but did not significantly differ between the boxing exercise and control groups. Body fat (%) and abdominal fat (%) significantly decreased in all exercise groups, but significantly increased in the control group. Skeletal muscle mass increased in the boxing exercise group, but did not significantly differ between the boxing, aerobic exercise, and control groups. Muscular strength and muscular endurance increased in both exercise group, but did not change in the control group. Flexibility showed no differences between the groups. Conclusions: In conclusion, an eight-week boxing exercise program for college students showed positive effects on cardiorespiratory function and health-related fitness.

• The Korean Journal of Physiology and Pharmacology
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• 제26권1호
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• pp.15-24
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• 2022

The development of selective targeting of drug molecules towards the mitochondria is an important issue related to therapy efficacy. In this study, we report that gallic acid (GA)-mitochondria targeting sequence (MTS)-H₃R₉ exhibits a dual role as a mitochondria-targeting vehicle with antioxidant activity for disease therapy. In viability assays, GA-MTS-H₃R₉ showed a better rescue action compared to that of MTS-H₃R₉. GA-MTS-H₃R₉ dramatically exhibited cell penetration and intercellular uptake compared to MTS and fit escape from lysosome release to the cytosol. We demonstrated the useful targeting of GA-MTS-H₃R₉ towards mitochondria in AC16 cells. Also, we observed that the antioxidant properties of mitochondrial-accrued GA-MTS-H₃R₉ alleviated cell damage by reactive oxygen species production and disrupted mitochondrial membrane potential. GA-MTS-H₃R₉ showed a very increased cytoprotective effect against anticancer activity compared to that of MTS-H₃R₉. We showed that GA-MTS-H₃R₉ can act as a vehicle for mitochondria-targeting and as a reagent for therapeutic applications intended for cardiovascular disease treatment.

• Clinical and Experimental Reproductive Medicine
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• 제49권1호
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• pp.49-56
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• 2022

Objective: Oxidative stress and sperm DNA fragmentation (SDF) have been linked to idiopathic male infertility (IMI). Various antioxidants have been tried to improve semen parameters and fertility potential in IMI patients, but with inconsistent results. The study aimed to compare the effects of coenzyme Q10 (CoQ10) and Centrum multivitamins on semen parameters, seminal antioxidant capacity, and SDF in infertile men with idiopathic oligoasthenospermia (OA). Methods: This prospective controlled clinical study involved 130 patients with idiopathic OA and 58 fertile controls. The patients were divided randomly into two groups: the first group received CoQ10 (200 mg/day orally) and the second group received Centrum multivitamins (1 tablet/day) for 3 months. Semen parameters, CoQ10 levels, reactive oxygen species (ROS), total antioxidant capacity (TAC), catalase, SDF, and serum hormone levels (follicle-stimulating hormone, luteinizing hormone, testosterone, and prolactin) were compared at baseline and after 3 months. Results: Both CoQ10 and Centrum improved sperm concentration and motility, but the improvement was greater with Centrum therapy (p<0.05). Similarly, both therapies improved antioxidant capacity, but TAC and catalase improvement was greater (p<0.01 and p<0.001 respectively) with CoQ10, whereas ROS (p<0.01) and SDF (p<0.001) improvements were greater with Centrum administration. Centrum therapy was associated with reduced serum testosterone (p<0.05). Conclusion: In conclusion, both CoQ10 and Centrum were effective in improving semen parameters, antioxidant capacity, and SDF, but the improvement was greater with Centrum than with CoQ10. Therefore, Centrum-as a source of combined antioxidants-may provide more effective results than individual antioxidants such as CoQ10 in the treatment of infertile men with idiopathic OA.

• Journal of Microbiology and Biotechnology
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• 제34권8호
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• pp.1609-1616
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• 2024

The Burkholderia cepacia complex (Bcc) consists of opportunistic pathogens known to cause pneumonia in immunocompromised individuals, especially those with cystic fibrosis. Treating Bcc pneumonia is challenging due to the pathogens' high multidrug resistance. Therefore, inhalation therapy with tobramycin powder, which can achieve high antibiotic concentrations in the lungs, is a promising treatment option. In this study, we investigated potential mechanisms that could compromise the effectiveness of tobramycin therapy. By selecting for B. cenocepacia survivors against tobramycin, we identified three spontaneous mutations that disrupt a gene encoding a key enzyme in the biosynthesis of cobalamin (Vitamin B₁₂). This disruption may affect the production of succinyl-CoA by methylmalonyl-CoA mutase, which requires adenosylcobalamin as a cofactor. The depletion of cellular succinyl-CoA may impact the tricarboxylic acid (TCA) cycle, which becomes metabolically overloaded upon exposure to tobramycin. Consequently, the mutants exhibited significantly reduced reactive oxygen species (ROS) production. Both the wild-type and mutants showed tolerance to tobramycin and various other bactericidal antibiotics under microaerobic conditions. This suggests that compromised ROS-mediated killing, due to the impacted TCA cycle, underlies the mutants' tolerance to bactericidal antibiotics. The importance of ROS-mediated killing and the potential emergence of mutants that evade it through the depletion of cobalamin (Vitamin B₁₂) provide valuable insights for developing strategies to enhance antibiotic treatments of Bcc pneumonia.

• Tuberculosis and Respiratory Diseases
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• 제49권6호
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• pp.715-723
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• 2000

연구배경 : 폐쇄성 수면 무호흡 증후군 환자는 수면중에 전신성 혈압의 상승과 심박동수의 현저한 변화를 보이며, 이러한 심혈관계 기능변화는 수면중 반복되는 무호흡에 의한 저산소증과 각성반응으로 인한 교감신경계 활성도 변화와 관련이 있을 것으로 생각되고 있다. 지속적 기도 양압 공급(CPAP) 치료는 폐쇄성 수면 무호흡을 가장 확실하게 치료할 수 있는 방법으로 알려져 있으나 이러한 치료법이 환자들의 심혈관계 교감신경계 활성도에 어떠한 영향을 미치는 지에 대해서는 명확히 알려져 있지 않다. 이에 저자들은 폐쇄성수면 무호흡 증후군 환지에서 CPAP 치료 적용시 나타나는 심혈관계 및 교감신경계 활성도 변화를 관찰하고자하였다. 방법 : 수면다원검사에서 폐쇄성 수면 무호흡 증후군으로 진단되어 CPAP 치료를 시행한 13명을 대상으로 치료 전과 후의 수면다원검사의 각 지표, 수면중 전신성 혈압, 수면중 심박동수와 부정맥, 그리고 혈장 catecholamines 농도 변화를 비교 분석하였다. 결과 : 수면다원검사의 각 지표중 CPAP 치료 후 무호흡-저호흡지수는 유의하게 감소하였고(p<0.01), 동맥혈 최저 산소 포화도는 유의하게 증가하였다(p<0.01). 수면중 수축기 혈압은 치료 후 감소하는 경향을 보였으나 통계적 유의성용 없었다. 수면중 심박동수는 치료 전에 비해 통계적으로 유의한 차이는 없었으나 심부정맥의 종류와 빈도는 치료 전에 부정맥이 관찰되었던 환자들에 있어서 감소하는 경향을 보였고 무호흡의 소실과 함께 동성 서맥성빈맥성부정맥은 사라졌다. 혈장 epinephrine 농도는 치료 전후에 유의한 차이가 없었으나 혈장 norepinephrine 농도는 치료 후 통계적으로 유의하게 감소하였다(p<0.05). 결론 : 폐쇄성 수면 무호흡 증후군 환자에서 CPAP 치료는 수면 무호흡과 저호흡 발생을 감소시켜 수면중 저산소증 발생을 예방할 수 있었고, 수면중 혈장 norepinephrine 농도 감소를 유도하였다. 이러한 변화를 통하여 CPAP 치료는 폐쇄성 수면 무호흡 증후군 환자에게 있어 수면중 전신성 수축기 혈압의 하강 및 수면중 심부정맥의 감소에 영향을 미칠 것으로 생각한다.

• 생명과학회지
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• 제26권4호
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• pp.398-405
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• 2016

3-Hydroxy-3-methylglutaryl coenzyme A 환원효소의 억제제로 알려진 statin은 고지혈증 치료제로 널리 사용되고 있고, 또한 다양한 암에서 항암효과를 나타낸다고 알려져 있다. 최근 연구에서는 reactive oxygen species (ROS)가 세포사멸 신호에 중요한 역할을 한다고 보고하였지만, rosuvastatin에 의한 ROS 생성의 정확한 기전은 아직 밝혀지지 않았다. 인간 전립선암 세포주인 PC-3 세포를 이용하여 rosuvastatin에 의한 세포사멸 경로를 확인하였다. 세포독성, 세포사멸과 ROS의 생성을 측정하기 위해서 MTT assay, annexin V/PI 염색과 DCFH-DA염색을 통해 flow cytometry에 의해 측정하였다. 본 연구의 결과에서, rosuvastatin은 농도와 시간 의존적으로 세포 생존율 감소와 세포형태변화를 확인할 수 있었다. Flow cytometry 분석을 통해 세포주기와 apoptosis를 확인하였고 Western blotting assay를 통하여 PARP와 procaspase-3가 감소되는 것을 통해 apoptosis를 재확인 할 수 있었다. 또한 rosuvastatin은 농도 의존적으로 ROS 생산을 증가하였고, ROS 생성 저해제인 N-acetylcysteine (NAC) 처리를 통해 ROS와 apoptosis가 회복되었다. 따라서 rosuvastatin이 ROS 생성을 통해 apoptosis를 유도한다는 것을 알 수 있었고, 이는 인간 전립선 암세포에 대한 항암치료제로서의 가능성을 제시한다.

• 한국임상수의학회지
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• 제26권3호
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• pp.273-275
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• 2009

사지마비를 보이는 6년령 시쮸 숫컷이 내원하였다. 신경검사소견 및 영상진단소견에서 경추 4번과 5번 사이, 경추 5번과 6번 사이 및 경추 6번과 7번 사이의 디스크가 탈출되어 척수를 압박하고 있는 것으로 나타났다. 오존가스를 경추 4번과 5번 사이 디스크 및 경추 6번과 7번 사이 디스크에 주입하고 경추 5번과 6번 사이는 복측 감압술로 탈출된 디스크를 제거하였다. 환축은 수술후 목 통증이 사라지고 수술후 3주경 정상보행을 나타냈다. 수술후 2개월째 자기공명영상에서 경추 5번과 6번 사이 디스크와 경추 6번과 7번 사이 디스크의 탈출된 소견이 사라졌고 경추 4번과 5번 사이의 디스크는 탈출된 정도가 현저히 줄어든 소견을 보였다.

• The Korean Journal of Physiology and Pharmacology
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• 제19권3호
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• pp.229-234
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• 2015

Nafamostat mesilate (NM) is a serine protease inhibitor with anticoagulant and anti-inflammatory effects. NM has been used in Asia for anticoagulation during extracorporeal circulation in patients undergoing continuous renal replacement therapy and extra corporeal membrane oxygenation. Oxidative stress is an independent risk factor for atherosclerotic vascular disease and is associated with vascular endothelial function. We investigated whether NM could inhibit endothelial dysfunction induced by tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$ ). Human umbilical vein endothelial cells (HUVECs) were treated with TNF-${\alpha}$ for 24 h. The effects of NM on monocyte adhesion, vascular cell adhesion molecule-1 (VCAM-1) and intracellular adhesion molecule-1 (ICAM-1) protein expression, p38 mitogenactivated protein kinase (MAPK) activation, and intracellular superoxide production were then examined. NM ($0.01{\sim}100{\mu}g/mL$) did not affect HUVEC viability; however, it inhibited the increases in reactive oxygen species (ROS) production and p66shc expression elicited by TNF-${\alpha}$ (3 ng/mL), and it dose dependently prevented the TNF-${\alpha}$ -induced upregulation of endothelial VCAM-1 and ICAM-1. In addition, it mitigated TNF-${\alpha}$ -induced p38 MAPK phosphorylation and the adhesion of U937 monocytes. These data suggest that NM mitigates TNF-${\alpha}$ -induced monocyte adhesion and the expression of endothelial cell adhesion molecules, and that the anti-adhesive effect of NM is mediated through the inhibition of p66shc, ROS production, and p38 MAPK activation.

• 한국화재소방학회논문지
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• 제22권3호
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• pp.293-299
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• 2008

119 구급대를 이용하여 급성관상동맥증후군을 진단 받은 97명의 환자평가로는 혈압 27.8%, 호흡 23.7%, 맥박 33.0%를 측정하였고, 응급처치로는 산소공급 52.6%, 안정 12.4%, 심전도 체크 4.1%, Nitroglycerin(NTG) Aspirin 정맥로 확보 둥은 0%로 전체적인 수행율이 낮게 확인되어 급성관상동맥증후군 환자의 병원 전 처치가 제대로 이루어지지 못하고 있다. 따라서 구급대인의 질적 향상을 위해서 실무중심의 지속적인 교육, 교육 후에는 반드시 평가를 병행하여 적정수준 미달자에게는 재교육을 받도록 하는 등 구급대원의 자질을 강화시킬 수 있도록 내부적인 초안이 마련되어야 할 것이다.