• Title/Summary/Keyword: Respiratory ability

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Microbial Subversion of Heparan Sulfate Proteoglycans

  • Chen, Ye;Gotte, Martin;Liu, Jian;Park, Pyong Woo
    • Molecules and Cells
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    • v.26 no.5
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    • pp.415-426
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    • 2008
  • The interactions between the host and microbial pathogen largely dictate the onset, progression, and outcome of infectious diseases. Pathogens subvert host components to promote their pathogenesis and, among these, cell surface heparan sulfate proteoglycans are exploited by many pathogens for their initial attachment and subsequent cellular entry. The ability to interact with heparan sulfate proteoglycans is widespread among viruses, bacteria, and parasites. Certain pathogens also use heparan sulfate proteoglycans to evade host defense mechanisms. These findings suggest that heparan sulfate proteoglycans are critical in microbial pathogenesis, and that heparan sulfate proteoglycan-pathogen interactions are potential targets for novel prophylactic and therapeutic approaches.

Change of Craniovertebral Angle(CVA) and Respiration on Application Correction Method of Posture and Breathing Accessory Muscle Exercise in Forward Head Posture(FHP) (두부전방전위자세에 자세교정법과 호흡보조근운동의 적용 시 CVA와 호흡의 변화)

  • Cho, hyunrae
    • Journal of The Korean Society of Integrative Medicine
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    • v.3 no.3
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    • pp.89-94
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    • 2015
  • Purpose : This study was analyzed to researched the improvement of the posture and breathing ability on correction method of posture and breathing exercise in Forward Head Posture(FHP) Method : Eighten forward head posture subjects participated in this study. The control group applied to correction method of posture and the experiment group applied to correction method of posture with breathing exercises. Results : The results showed significant improvement in Craniovertebra-Angle on each two group(P<0.05). All the other result showed non-significant in respiratory(Tidal volume, Expiratory residual volume, Inspiratory residual volume) But value of result is slightly improved in after exercise. Conclusion : CVA angle is increased in each group but not increased between experiment group and control group. Total Volume(TV), Inspiratory Reserve Volume(IRV) and Expiratory Reserve Volume(ERV) are a little increased.

A Case of Patulous Eustachian Tube Associated with Kennedy Disease (Kennedy병에 의한 개방성 이관 1예)

  • Kim, Nam-Hee;Cho, Chang-Gun
    • Annals of Clinical Neurophysiology
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    • v.12 no.2
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    • pp.70-72
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    • 2010
  • We report a 53-year-old male having Kennedy disease who complained of severe bilateral tinnitus and autophony. He was diagnosed as patulous Eustachian tube based on the observation of fluttering motion of the tympanic membrane associated with respiration, which is presumed to occur secondary to bulbar weakness. The patulous Eustachian tube affected the management of his respiratory problem by impairing his ability to tolerate BiPAP. We report this rare condition with a literature review.

Investigation on the technology trend in Platycodon grandiflorum by the patent analysis

  • Kim, Chang-Kug
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.10a
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    • pp.46-46
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    • 2018
  • The Platycodon grandiflorum (balloon flower) has been used as food material and traditional medicine in Asia. The roots have been used in traditional medicine to treat coughs, upper respiratory infections, and sore throats. Using 1,603 valid patents from 6 countries, we analyzed the patent trend based on year, countries, applicants, and technology. The technologies are categorized into 6 groups which include material, additives, manufacture, cultivation, breeding and seed. The technology competitiveness of countries were analyzed with quantitative factors such as cites per patent, patent impact index, patent family size and technology strength. In comparison with other countries in the patent index, South Korea shows an increasing trend in patent numbers and total leverage ability, although the individual technology is lower than Japan and USA. Our study provides information on technical trend to support the performance of new projects on balloon flower.

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Overview of Pandemic Influenza (신종 인플루엔자 대유행 개관)

  • Kim, Woo-Joo
    • Journal of Preventive Medicine and Public Health
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    • v.38 no.4
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    • pp.373-378
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    • 2005
  • Influenza virus has a unique characteristics of annual epidemics of acute respiratory disease with attack rate of 10%-30% of the population. It is also the classical emerging infectious disease causing global pandemics when new antigenic shift occur. This antigenic shift is the key to its ability to evoke periodic pandemics, and it has caused at least 3 pandemics in 20th century. I reviewed these 3 pandemics in their natural courses and the epidemiology of the recent emerging influenza A viruses, especially the H5 and H7 subtypes. I descr ibed the epidemics of these vi ruses in human population and why we should be prepared to these viruses.

Role of dexmedetomidine in pediatric dental sedation

  • Mohite, Vedangi;Baliga, Sudhindra;Thosar, Nilima;Rathi, Nilesh
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.19 no.2
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    • pp.83-90
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    • 2019
  • Dexmedetomidine is a highly selective ${\alpha}2$-adrenoceptor agonist with a vast array of properties, making it suitable for sedation in numerous clinical scenarios. Its use was previously restricted to the sedation of intensive care unit patients. However, its use in pediatric dental sedation has been gaining momentum, owing to its high suitability when compared with conventional pediatric sedatives. Its properties range from sedation to anxiolysis to analgesia, due to its sympatholytic properties and minimal respiratory depression ability. Because dexmedetomidine is an efficacious and safe drug, it is gaining importance in pediatric sedation. Thus, the aim of this review is to highlight the properties of dexmedetomidine, its administration routes, its advantages over the commonly used pediatric sedatives, and especially its role as an alternative pediatric sedative.

Use of real-time ultrasound imaging for biofeedback of diaphragm motion during normal breathing in healthy subjects

  • Cho, Ji-Eun;Hwang, Dal-Yeon;Hahn, Joohee;Lee, Wan-Hee
    • Physical Therapy Rehabilitation Science
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    • v.7 no.3
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    • pp.95-101
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    • 2018
  • Objective: To determine if the provision of visual biofeedback using real-time rehabilitative ultrasound imaging (RUSI) enhances the acquisition and retention of diaphragm muscle recruitment during exercise. Design: Two group pretest posttest design. Methods: Thirty healthy subjects were randomly assigned to the verbal feedback group (VG, n=15) or the visual and verbal feedback group (VVG, n=15). The VG performed breathing exercises 10 times with verbal feedback, and the VVG also performed breathing exercises 10 times with verbal feedback and visual feedback with the use of RUSI to measure changes in diaphragm thickness (DT). For DT, the mid-axillary lines between ribs 8 and 9 on both sides were measured in standing, and then the chest wall was perpendicularly illuminated using a linear transducer with the patients in supine to observe the region between rib 8 and 9 and to obtain 2-dimensional images. DT was measured as the distance between the two parallel lines that appeared bright in the middle of the pleura and the peritoneum. After one week, three repetitions (follow-up session) were performed to confirm retention effects. Intra- and between- group percent changes in diaphragm muscle thickness were assessed. Results: In the VVG, the intervention value had a medium effect size compared to the baseline value, but the follow-up value decreased to a small effect size. In the between-group comparisons, during the intervention session, the VVG showed no significant effect on percent change of DT but had a medium effect size compared to the VG (p=0.050, Cohen's d=0.764). During the follow-up session, retention effect did not persist (p=0.311, Cohen's d=0.381). Conclusions: RUSI can be used to provide visual biofeedback and improve performance and retention in the ability to activate the diaphragm muscle in healthy subjects. Future research needs to establish a protocol for respiratory intervention to maintain the effect of diaphragmatic breathing training using RUSI with visual feedback.

Immunopathogenesis of COVID-19 and early immunomodulators

  • Lee, Kyung-Yil;Rhim, Jung-Woo;Kang, Jin-Han
    • Clinical and Experimental Pediatrics
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    • v.63 no.7
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    • pp.239-250
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    • 2020
  • The novel coronavirus disease 2019 (COVID-19) is spreading globally. Although its etiologic agent is discovered as severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), there are many unsolved issues in COVID-19 and other infectious diseases. The causes of different clinical phenotypes and incubation periods among individuals, species specificity, and cytokine storm with lymphopenia as well as the mechanism of damage to organ cells are unknown. It has been suggested that in viral pneumonia, virus itself is not a direct cause of acute lung injury; rather, aberrant immune reactions of the host to the insults from viral infection are responsible. According to its epidemiological and clinical characteristics, SARS-CoV-2 may be a virus with low virulence in nature that has adapted to the human species. Current immunological concepts have limited ability to explain such unsolved issues, and a presumed immunopathogenesis of COVID-19 is presented under the protein-homeostasis-system hypothesis. Every disease, including COVID-19, has etiological substances controlled by the host immune system according to size and biochemical properties. Patients with severe pneumonia caused by SARS-CoV-2 show more severe hypercytokinemia with corresponding lymphocytopenia than patients with mild pneumonia; thus, early immunomodulator treatment, including corticosteroids, has been considered. However, current guidelines recommend their use only for patients with advanced pneumonia or acute respiratory distress syndrome. Since the immunopathogenesis of pneumonia may be the same for all patients regardless of age or severity and the critical immune-mediated lung injury may begin in the early stage of the disease, early immunomodulator treatment, including corticosteroids and intravenous immunoglobulin, can help reduce morbidity and possibly mortality rates of older patients with underlying conditions.

Quantitative Measurement of Surfactant Protein B mRNA by Filter Hybridization (Filter Hybridization 방법에 의한 Surfactant Protein B mRNA의 정량측정)

  • Park, Sung-Soo;Lee, Dong-Hoo;Shin, Dong-Ho;Lee, Jung-Hee
    • Tuberculosis and Respiratory Diseases
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    • v.39 no.3
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    • pp.242-247
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    • 1992
  • Background: The ability to precisely measure specific mRNA levels by hybridization to complementary DNA probes is an important tool for analyzing the regulation of gene expression. Surfactant proteins have important roles in regulating surfactant metabolism as well as in determing its physical properties. Method: The complete coding regions for rat surfactant protein complementary DNA of surfactant protein B were subcloned into pGem 3Z or 4Z such that either antisense or sense transcripts were obtained by using SP 6 RNA polymerase. Surfactant protein B mRNA was measured by filter hybridization. Results: Equation of standard curve between counts per minute (Y) and surfactant protein B mRNA transcript input (X) was Y=2034.9 X+159.1. Correlation coefficient was 1.0. Couclusions: Filter hybridization assay is suited to situation when rapid, accurate quantitation of multiple samples is required.

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Effects of CpG Motifs Present in Synthetic Oligodeoxynucleotides on Nonspecific Immune Responses and Disease Resistance of Olive Flounder (Paralichthys olivaceus)

  • Lee Chan Hwei;Kwon Se Ryun;Lee Eun Hye;Kim Ki Hong
    • Fisheries and Aquatic Sciences
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    • v.6 no.3
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    • pp.125-129
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    • 2003
  • Effects of synthetic oligodeoxynucleotides (ODNs) containing cytidine-phosphate-guanosine(CpG) motif(s) on nonspecific immune responses of olive flounder (Paralichthys olivaceus) and on protection against lethal infection with Edwardsiella tarda were investigated. Respiratory bunt activities of the head kidney phagocytes in the fish injected either 0.25 or 0.5 ${\mu}g/fish$of ODNs containing CpG motifs (ODN 1826 and ODN 1670) were significantly higher than those injected with an ODN containing a guanosine-phosphate-cytidine (GpC) motif (ODN 1720) or with hanks balanced salt solution (HBSS, control) at 3, 5 and 7 days after injection. The serum lysozyme activities of fish injected with 0.25${\mu}g$ of ODN 1826 were significantly higher than those injected with ODN 1720 or HBSS at 1 and 7 days after injection. At 7 days after injection, the group of fish injected with CpG ODNs showed higher serum lysozyme activities than fish injected with ODN 1720 or control. The group of fish injected 0.25 or 0.5${\mu}g$ of CpG ODNs showed higher survival rates than those treated with GpC ODN and the control group after challenge with Edwardsiella tarda. The present study proved the ability of synthetic CpG ODN to increase nonspecific immune responses and disease resistance in olive flounder.