• Title/Summary/Keyword: Respiration rate

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Effect of Withaferin A on A549 Cellular Proliferation and Apoptosis in Non-small Cell Lung Cancer

  • Cai, Yong;Sheng, Zhao-Ying;Chen, Yun;Bai, Chong
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.4
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    • pp.1711-1714
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    • 2014
  • Objective: To explore the effect of Withaferin A on A549 cellular proliferation and apoptosis in non-small cell lung cancer (NSCLC). Materials and Methods: NSCLC cell line A549 was selected to explore the effect of Withaferin A on A549 cellular proliferation, apoptosis and the PI3K/Akt signal pathway capable of regulating tumor biological behavior by assessment of cellular proliferation, cellular apoptotic rates and cellular cycling as well as by immuno-blotting. Results: Withaferin A could inhibit A549 cellular proliferation and the control rate was dosage-dependent (P<0.05), which also increased time-dependently with the same dosage of Withaferin A (P<0.05). The apoptotic indexes in A549 cells treated with 0, 2.5, 5.0, 10.0 and 20.0 ${\mu}mol{\cdot}L^{-1}$ Withaferin A for 48 h were significantly different (P<0.05). In addition, the apoptotic rates of each group in both early and advanced stages were higher than those in 0 ${\mu}mol{\cdot}L^{-1}$ (P<0.05), which were evidently higher after 48 h than those after 24 h (P<0.05). A549 cells treated by Withaferin A for 48 h were markedly lower in Bcl-2 level and obviously higher in Bax and cleaved caspase-3 levels than those treated by 0 ${\mu}mol{\cdot}L^{-1}$ Withaferin A (P<0.05), and there were significant differences among 5, 10 and 20 ${\mu}mol{\cdot}L^{-1}$ Withaferin A (P<0.05). The ratios of A549 cells treated by Withaferin A for 48 h in G0/G1 stage were higher than those in 0 ${\mu}mol{\cdot}L^{-1}$, while those in S and G2/M stages were obviously lower than those in G2/M stage, and there were significant differences in 5.0, 10.0 and 20.0 ${\mu}mol{\cdot}L^{-1}$ Withaferin A (P<0.05). Additionally, p-Akt/Akt values were in reverse association with dosage, and the differences were significant (P<0.05). Conclusion: Withaferin A can inhibit the proliferation and apoptosis of A549 cells by suppressing activation of the PI3K/Akt pathways.

A Study on the Complications of Acute Ischemic Cerebrovascular Disease Patients (급성기 허혈성 뇌중풍(중풍)의 합병증에 관한 연구)

  • Hsia, Yu-Chun;Jung, Ki-Yong;Go, Ho-Yeon;Jung, Seung-Min;Jung, Hee;Ko, Mi-Mi;Kang, Mi-Suk;Choi, You-Kyung;Kim, Dong-Woo;Han, Chang-Ho;Cho, Ki-Ho;Park, Jong-Hyung;Ko, Seung-Gyu;Jun, Chan-Yong
    • The Journal of Internal Korean Medicine
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    • v.28 no.1
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    • pp.25-33
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    • 2007
  • Background and Purpose : This study was to survey complication according to the TOAST classification and Sasangconstitution in first-ever AICD (acute ischemic cerebrovascular disease) patients. Methods : From 1 Oct. 2005 to 31 Oct. 2006. 97 patients with a first-ever stroke were included in the study. patients were hospitalized within 14 days after the onset of stroke at Kyungwon University Incheon Oriental Hospital. We recorded patient's complications according to the standard operation procedure of 'A stroke study for standardization and science on Korean Medicine' Results : Complications were recorded in 23 cases (24%). The most common complication was upper respiration infection in 11 cases (11%). No statistical significance was shown between complications of AICD and Sasangconstitutions, but complications rate of LAA was higher than SVO in AICD patients (odds ratio 4.17 95% CI 1.127${\sim}$7.307). Conclusions : To acquire more concrete data on this theme. we need further and larger scale research.

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Quality Improvement in the Trauma Intensive Care Unit Using a Rounding Checklist: The Implementation Results

  • Chang, Ye Rim;Chang, Sung Wook;Kim, Dong Hun;Yun, Jeongseok;Yun, Jung Ho;Lee, Seok Won;Jo, Han Cheol;Choi, Seok Ho
    • Journal of Trauma and Injury
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    • v.30 no.4
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    • pp.113-119
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    • 2017
  • Purpose: Despite the numerous protocols and evidence-based guidelines that have been published, application of the therapeutics to eligible patients is limited in clinical settings. Therefore, a rounding checklist was developed to reduce errors of omission and the implementation results were evaluated. Methods: A checklist consisting of 12 components (feeding, analgesia, sedation, thromboembolic prophylaxis, head elevation, stress ulcer prevention, glucose control, pressure sore prevention, removal of catheter, endotracheal tube and respiration, delirium monitoring, and infection control) was recorded by assigned nurses and then scored by the staff for traumatized, critically ill patients who were admitted in the trauma intensive care unit (ICU) of Dankook University Hospital for more than 2 days. A total of 170 patients (950 sheets) between April and October 2016 were divided into 3 periods (period 1, April to June; period 2, July to August; and period 3, September to October) for the analysis. Questionnaires regarding the satisfaction of the nurses were conducted twice during this implementation period. Results: Record omission rates decreased across periods 1, 2, and 3 (19.9%, 12.7%, and 4.2%, respectively). The overall clinical application rate of the checklist increased from 90.1% in period 1 to 93.8% in period 3. Among 776 (81.7%) scored sheets, the rates of full compliance were 30.2%, 46.2%, and 45.1% for periods 1, 2, and 3, respectively. The overall mean score of the questionnaire regarding satisfaction also increased from 61.7 to 67.6 points out of 100 points from period 1 to 3. Conclusions: An ICU rounding checklist could be an effective tool for minimizing the omission of preventative measures and evidence-based therapy for traumatized, critically-ill patients without overburdening nurses. The clinical outcomes of the ICU checklist will be evaluated and reported at an early date.

Physiological and Biochemical Response of Blood on Low Temperature Stress in Sevenband Grouper, Epinephelus septemfasciatus (저수온 스트레스에 따른 능성어 (Epinephelus septemfasciatus) 혈액의 생리생화학적 반응)

  • Park, Jong Youn;Park, Jae Min;Hong, Chang Gi;Kim, Kyong Min;Cho, Jae Kwon
    • Korean Journal of Ichthyology
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    • v.28 no.1
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    • pp.1-8
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    • 2016
  • This study was conducted to investigate the physiological responses of sevenband grouper, Epinephelus septemfasciatus at low temperature condition in winter season. Water temperature was dropped from $12^{\circ}C$ to $5^{\circ}C$ by two different interval (interval I: $-1^{\circ}C/24h$ and interval II: $-1^{\circ}C/8h$). The experimental fishes were exposed for 9 days at each water temperature condition, and were observed survival rate. The blood sample was collected from fishes for analysis of cortisol, glucose, total protein (TP), and electrolytes ($Na^+$, $Cl^-$, $K^+$). Mortality of fish was not observed until $5^{\circ}C$. The mortality (12 individuals) began after 170 h and all fish were death after 174 h in interval I case, whereas the mortality (9 individuals) began after 72 h and all fish were death after 76 h in interval II case. Little different was observed in the physiological responses, but trend was similar between two intervals. The physiological metabolism of plasma cortisol and glucose were increased rapidly, and swimming ability and respiration response was faster at $7^{\circ}C$. This result means that the critical temperature of sevenband grouper was $7^{\circ}C$ at low water temperature condition.

Recent research trends of post-harvest technology for king oyster mushroom (Pleurotus eryngii) (큰느타리버섯 수확후 관리기술 최근 연구 동향)

  • Choi, Ji-Weon;Yoon, YoeJin;Lee, Ji-Hyun;Kim, Chang-Kug;Hong, Yoon-Pyo;Shin, Il Sheob
    • Journal of Mushroom
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    • v.16 no.3
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    • pp.131-139
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    • 2018
  • The king oyster mushroom (Pleurotus eryngii) is widely consumed because of its flavor, texture, and its functional properties such as antioxidant activity and prebiotic effects. However, long-term product storage and transportation (e.g., export) are difficult because of its limited durability. The shelf-life of king oyster mushroom is affected by environmental factors such as temperature, humidity, gas composition, and ventilation, which may affect sensory characteristics including respiration rate, texture, moisture, flavor, color, and pH. The major problems regarding storage of mushrooms are browning, flavor changes, and softening. To address these problems, novel preservation techniques were developed, and more durable variants were bred. Different drying methods, gamma irradiation, chitosan coating, modified atmosphere (MA) packaging, and controlled atmosphere (CA) storage were evaluated in order to extend the shelf-life of king oyster mushrooms. Freeze drying showed better results for the preservation of mushrooms than other drying methods. Irradiation with 1 kGy was more effective for extending mushroom shelf-life than higher doses. The preservative performance of chitosan-based films was improved by combining the compound with other hydrocolloids, such as oil, protocatechuic acid, and wax. The CA storage conditions recommended for king oyster mushrooms are 5kPa $O_2$ and 10 to 15kPa $CO_2$ at temperatures below $10^{\circ}C$. Active MA packaging with microperforated PP film was also effective for maintaining quality during storage.

The Patterns of Oxygen Consumption In Six Species of Marine Fish (해산어류 6종의 산소소비 경향에 관한 연구)

  • KIM Il-Nam;CHANG Young-Jin;KWON Joon-Yeong
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.28 no.3
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    • pp.373-381
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    • 1995
  • Oxygen consumption of marine fishes according to different water temperatures, fish population densities and body weights was measured in the respiratory chamber for the following six species: the olive flounder Paralichthys olivaceus, the tiger puffer Takifugu rubripes, the rockfish Sebastes schlegeli, the sea bass Lateolabrax Japonicus, the red seabream Pagrus major and the black seabream Acanthopagrus schlegeli. Also the lethal concentration of dissolved oxygen in them was determined. Oxygen consumption in each fish species increased as the water temperature increased. The relationship between the oxygen consumption rate $(Oc,\;ml/kg{\cdot}\;hr)$ and the water temperature (T,$^{\circ}C$) for each species appeared as the following equations demonstrate; olive flounder: Oc=34.0515T-339.5987 $(r^2=0.9730)$, tiger puffer: Oc=34.4941T-479.8732 $(r^2=0.9483),$ rockfish: Oc=44.7970T-634.2627 $(r^2=0.9718),$ sea bass: Oc=26.1488T-318.0633 $(r^2=0.9316),$ red seabream: Oc=61.1020T-722.8926 $(r^2= 0.9805),$ black seabream: Oc=75.1460T-947.9370 $(r^2=0.9392).$ The of gen consumption of fish with different population densities decreased as the number of fish increased. As the body weight of the olive flounder increased, the mass-specific oxygen consumption decreased. The relationship between oxygen consumption and body weight (W; g) was expressed as Oc=2532.0268W-0.6565 $(r^2=0.9229)$. The levels of lethal dissolved oxygen in the olive flounder, rockfish, tiger puffer and red seabream were 0.66, 0.79, 0.75 and 1.36 m1/1, respectively.

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A Study on the Effect of Self-Management and Relaxation Training through Biofeedback on Influencing the Stress Response and Immune Functions (바이오휘드백을 통한 자기조절 훈련이 스트레스반응과 면역기능에 미치는 효과에 관한 연구)

  • 이소우;김금순;박성회
    • Journal of Korean Academy of Nursing
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    • v.29 no.4
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    • pp.855-869
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    • 1999
  • The purpose of this study was to test the effectiveness of self-management relaxation training through biofeedback and progressive muscle relaxation methods. The effectiveness of the experimental methods was tested by measuring the degree of symptoms of stress (SOS), the McNair's profile of Mood States (POMS), the levels of ephinephrine, norepinephrine, pulse rate, blood pressure and natural killer cells. The subjects of this study were sixty six nursing students divided into four groups : two groups were the biofeedback and progressive muscle relaxation groups, the other two groups served as control groups. One was a group of sophomores with no experience at all, the other a junior group without self -management or relaxation training. This study was conducted for eight weeks of clinical practice from April, 26th 1998 to June, 20th 1998. Biofeedback training was done with software developed by J&J company (1-410 form for abdominal respiration training). Progressive muscle relaxation training was done with u audiotape recorded according to Jacobson's Theory. The data were analyzed with frequencies, means, and analysis of covariance using the SPSS program and the significance level of statistics was 5%. The results of the study are : 1) The importance of clinical practice stress reduction is shown in that the level of symptoms of stress in the experimental groups in clinical practice was higher than in the group receiving only a lecture. 2) The relaxation training methods of biofeedback and progressive muscle relaxation were effective in reducing the symptoms of stress under the clinical practice stress conditions. 3) The effectiveness of the biofeedback training relaxation method to reduce symptoms of stress was higher than that of progressive muscle relaxation. 4) The relaxation training methods of biofeedback and progressive muscle relaxation were effective in reducing stressful mood states. 5) The relaxation training methods of biofeedback and progressive muscle relaxation were not effective in reducing epinephrine and norepinephrine levels. 6) The relaxation training methods of biofeedback and progressive muscle relaxation were effective in increaing the number of natural killer cells. 7) The relaxation training methods of biofeedback and progressive muscle relaxation were effective in decreasing high systolic and diastolic values of blood pressure and high pulse rates. In summary, the relaxation methods of biofeedback and progressive muscle relaxation in reducing clinical practice stress were effective in lowering the level of symptoms of stress and the profile of stressful mood states. They were also effective in lowering high blood pressure and pulse rates. The relaxation methods were effective in increasing the number of natural killer cells as part of the immune function. However, relaxation methods were not effective in reducing the catecholamine level. The biofeedback training method for reduction of symptoms of stress was more effective than the progressive muscle relaxation method.

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Effect of Housing on Physiological Responses and Energy Expenditure of Sheep in a Semi-arid Region of India

  • Bhatta, Raghavendra;Swain, N.;Verma, D.L.;Singh, N.P.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.8
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    • pp.1188-1193
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    • 2005
  • An investigation was carried out to study the effect of two housing systems on physiological responses and energy expenditure of sheep in a semi-arid region of India. Two types of housing management were adopted. First was a shed- $6{\times}3\;m^2$ structure with all the four sides of 1.8 m chain link fencing with a central height of 3 m. The roof was covered with asbestos sheets and with mud floorings. Second was an open corral- $6{\times}3\;m^2$ open space with all the four sides covered with 1.8 m chain link fencing. Thirty-four (32 ewes and 2 rams) sheep of native Malpura breed aged about 18 months (body weight 28 kg ewes; 35 kg rams) were grazed together on a 35 ha plot of native range. All the sheep were grazed as a flock from 08.00 to 17.00 h during a yearlong study. The flock was divided into two groups (16 ewes+1 ram) in the evening and housed as per the systems (Shed and Open Corral). Dry and wet temperatures were recorded at 06.00 h and 21.00 h using a wet and dry bulb-thermometer both inside the shed and in the open corral and temperature humidity index (THI) was calculated. There was significant (p<0.05) difference in the THI between shed and open corral in all the seasons, indicating that shed was always warmer compared to open corral. Rectal temperature (RT) of both the groups of sheep was similar during morning as well as evening throughout the seasons. There were significant (p<0.05) differences in the skin temperature (ST) and respiration rate (RR) between the two groups at both the measurements in all the seasons. Highest energy expenditure (EE) was recorded inside the shed at 21.00 h (224 kJ/h) during monsoon and lowest at 6.00 h during winter (119 kJ/h). There was a significant (p<0.05) difference between the EE inside the shed and that in the open corral. It was concluded that housing had significant effects on the physiological responses and EE of sheep. Provision of housing at night was stressful during monsoon (with less rainfall) and summer, whereas it was protecting the sheep from acute cold during winter in a semi-arid region of India.

Effects of Depth and Duration of Flooding on Growth and Yield at Different Growth Stage in Pepper(Capsicum annuum L.);I. Response to Flooding at Seedling Stage (고추(Capsicum annuum L.)의 생육단계별(生育段階別) 침수처리(浸水處理)에 따른 생육반응(生育反應);I. 유묘기(幼苗期) 반응(反應))

  • Guh, Ja-Ock;Kuk, Yong-In
    • Korean Journal of Environmental Agriculture
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    • v.15 no.3
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    • pp.325-334
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    • 1996
  • Pepper plants were flooded at 0, 5, 10 and 15cm at seedling stage under the condition of greenhouse. Treatment of flooding times are 6, 12, 24, 48 and 120 hours. The results obtained are summarized as follows. Plant height, number of leaves, shoot and root fresh weight were not recovered the flooding damages regardless of flooding time and depth. Pepper plant died in flooding depth of 5cm or more for over 48 hours. Plants in fallen leaves were found at more than 5cm depth and 6 hours of floodings. Photosynthesis and respiration rate decreased in the 5cm flooding depth or more for 24 hours. Chlorophyll content and root activity decreased for 12 hours or more at all the flooding depth. Also, diffusion resistance of stomata cell increased as increased flooding time and depth. Diseases occurred remarkably in proportion to the depth and hours of flooding treatment. It was not possible to control the desease by fungicide, also then was no effects of foliar spray of urea. Weight of fruit per plant not decrease by the 12 hours of 0cm and the 6 hours of 5cm flooding but decreased at deeper and longer flooding. Average weight of a fruit increased. The yield could not expected in the depth of 5cm or more for over 48 hours, There was significant positive correlation between all the investigated characteristics of growth and yield. There was, however, negative correlation between number of leaf and diffusion resistance of stomata.

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Effect of the ice pack treatment in the corrugated box for improving the storage quality of the oriental melon (Cucumis melo var. makuwa) at high temperature conditions during summer (여름철 고온 환경 조건에서 참외(Cucumis melo var. makuwa)의 저장 중 선도유지를 위한 아이스 팩 처리 포장 박스 적용 연구)

  • Choi, Woo Suk;Chung, Dae-Sung;Lee, Youn Suk
    • Food Science and Preservation
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    • v.21 no.1
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    • pp.25-33
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    • 2014
  • The effects of the ice pack and aluminum coated board in the corrugated boxes for maintaining the quality of fresh oriental melons (Cucumis melo var. makuwa) were investigated. The harvested oriental melons were stored at a temperature of $30^{\circ}C$ for 21 days after placing them in the corrugated boxes treated with control, including ice pack and aluminum coated board. The treatment with the ice pack and aluminum coated board was identified to have maintained the relative low temperature in the corrugated box against the high temperature from the environment. For the storage study of the oriental melon, the treatments with the ice pack and aluminum coated board reduced the respiration rate, the development of external color, and total weight loss. All treatments were also effective in maintaining the firmness and decreasing the decay ratio of the oriental melon as compared to those that were controlled. However, the value of total soluble solids regarding the fruit was insignificantly affected by the ice pack treatment. The results indicated that the application of the ice pack and aluminum coated board in the corrugated box played an important role in maintaining the quality of oriental melons during storage. The combination with the ice pack and aluminum coated board had more effective values on the storage qualities for oriental melons than that with the ice pack only. Based on the results of this study, the ice pack and aluminum coated board were the useful treatments for reducing the loss of quality of the fresh oriental melons in high temperature storage conditions.