1.Physical Parameters of the Elderly.
Seung Han YANG ; Won Iel LEE ; Kyong Hwa KIM ; Jong In LEE ; Jun Yong JANG ; Kyong A LEE
Journal of the Korean Academy of Rehabilitation Medicine 1999;23(2):418-424
OBJECTIVE: To obtain the mean value of physical parameters of those over 65- years of age. METHODS: Physical parameters including body weight, height, chest circumference, length of upper limb and lower limb, hand power, and range of motion of cervical, thoracic, lumbosacral spines and other major joints were measured in two hundred fourteen elderly subjects. RESULTS: Subjects were divided into three groups according to age (group 1, 65~74 years; group 2, 75~84 years; group 3, above 85 years) and sex (male; female). Descriptive statistical analysis of data provided the following results. 1) Mean measurement in order of group 1-men, group 2-men, group 3-men followed by women of each group: Body weight (kg) - 60.2, 59.6, 54.9, 56.8, 51.6, 47.2; Standing height (cm) - 156.7, 160.8, 156.6, 151.2, 146.9, 142.2; Sitting height (cm) - 99.8, 100.8, 103.1, 100.9, 104.9, 97.0; Chest circumference (cm) - 91.5, 93.5, 91.4, 92.1, 89.5, 86.4; Upper limb length (cm) - 72.3, 72.5, 71.3, 67.1, 66.9, 65.4; Lower limb length (cm) - 82.3, 82.1, 81.4, 77.3, 76.1, 74.6. 2) The hand power of grasping, tip pinch, lateral pinch, palmar pinch showed a decreasing trend in older age group in both sexes. 3) The range of motion of cervical, thoracic, and lumbosacral spine in group 1 had limitation of about 50% compared to normal range. 4) Of the major joints, limitation of motion or deformity was most common in the shoulder and knee joints. CONCLUSION: These data and knowledge of physical parameters of the elderly can aid in design of living environment and assistive devices for elderly.
Aged*
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Body Weight
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Congenital Abnormalities
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Female
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Hand
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Hand Strength
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Humans
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Joints
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Knee Joint
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Lower Extremity
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Range of Motion, Articular
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Reference Values
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Self-Help Devices
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Shoulder
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Spine
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Thorax
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Upper Extremity
2.Severe Oropharyngeal Angioedema Caused by Propofol: A case report.
Chul Ho SHIN ; Young Hee LEE ; Young Min KIM ; Se Hun PARK ; Iel Yong SUNG ; Seong Won CHOI ; Soon Eun PARK
Korean Journal of Anesthesiology 2006;50(6):S68-S70
Although propofol is thought to be a relatively safe intravenous anesthetic with regard to histamine release reactions, anaphylactoid reactions to propofol may sometimes occur, especially in patients with a history of allergy, atopy, or asthma. Here we report a patient with allergies to sesame leaves and cold medications who experienced an anaphylactic reaction with severe oropharyngeal edema a few minutes after receiving propofol (Anepol(R)). This finding suggests that propofol should be used with caution in patients with a history of allergy. Because profound airway edema can occur, the airway should be evaluated before extubation of the trachea.
Anaphylaxis
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Angioedema*
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Asthma
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Edema
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Histamine Release
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Humans
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Hypersensitivity
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Propofol*
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Sesamum
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Trachea
3.Bone Density and Histomorphometry Assessment of Dental Implant Using Computerized Tomography
Jang Ho SON ; Byung Hwan CHOI ; Soo Won PARK ; Yeong Cheol CHO ; Iel Yong SUNG ; Ji Ho LEE ; Ki Jung BYUN
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2009;31(2):136-142
Biopsy
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Bone Density
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Dental Implants
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Humans
;
Mandible
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Maxilla
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Survival Rate
;
Torque
;
Transplants
4.The study of bone density assessment on dental implant sites.
Su Won PARK ; Soo Mi JANG ; Byoung Hwan CHOI ; Han Na SON ; Bong chan PARK ; Chang Hwan KIM ; Jang Ho SON ; Iel Yong SUNG ; Ji Ho LEE ; Yeong Cheol CHO
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2010;36(5):417-422
INTRODUCTION: Bone density is one of the important factors for the long term success of endosseous implants. The bone density varies from site to site and from patient to patient. A preoperative evaluation of the bone density is quite useful to oral surgeons for planning dental implantation. More accurate information on the bone density will help surgeons identify suitable implant sites, thereby increase the success rate of dental implantation. This study examined the correlation between the bone density measured preoperatively by computed tomography (CT) and the implant primary stability measured by resonance frequency analysis. Furthermore, the effects of the implant sites, gender, age and generalized systemic disorder patients on the bone density and primary implant stability were examined. MATERIALS AND METHODS: One hundred and fourteen patients were selected. None of the patients had undergone a tooth extraction or bone graft history in the previous year. Preoperatively, the patients underwent CT scanning to evaluate the Hounsfield unit (HU), and resonance frequency analysis (RFA) was used to evaluate the implant primary stability at the time of implant installation. All implants were 4.0 mm diameter and 11.5 mm length US II. All patients were recorded and the HU and implant stability quotient (ISQ) value were evaluated according to the sites, gender and age. RESULTS: The highest HU values were found in the mandibular anterior site (827.6+/-151.4), followed by the mandibular molar site (797+/-135.1), mandibular premolar site (753.8+/-171.2), maxillary anterior site (726.3+/-154.4), maxillary premolar site (656.7+/-173.8) and maxillary molar site (621.5+/-164.9). The ISQ value was the highest in the mandibular premolar site (81.5+/-2.4) followed by the mandibular molar site (80.0+/-5.7), maxillary anterior site (77.4+/-4.1), mandibular anterior site (76.4+/-11.9), maxillary premolar site (74.2+/-14.3) and maxillary molar site (73.7+/-7.4). The mean HU and ISQ value were similar in females and males. (HU: P=0.331, ISQ: P=0.595) No significant difference was also found in the age group respectively. However, the correlation coefficients between the variables showed a closed correlation between the HU and ISQ value. CONCLUSION: These results showed close correlation between the bone density (HU) and primary stability value (ISQ) at the time of implant installation (Correlation coefficients=0.497, P<0.01). These results strengthen the hypothesis that it might be possible to predict and quantify the initial implant stability and bone density from a presurgical CT diagnosis. These results strengthen the hypothesis that it might be possible to predict and quantify the initial implant stability and bone density from a presurgical CT diagnosis.
Bicuspid
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Bone Density
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Dental Implantation
;
Dental Implants
;
Female
;
Humans
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Male
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Molar
;
Osseointegration
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Tooth Extraction
;
Transplants
5.The role of rpoS, hmp, and ssrAB in Salmonella enterica Gallinarum and evaluation of a triple-deletion mutant as a live vaccine candidate in Lohmann layer chickens.
Youngjae CHO ; Yoon Mee PARK ; Abhijit Kashinath BARATE ; So Yeon PARK ; Hee Jeong PARK ; Mi Rae LEE ; Quang Lam TRUONG ; Jang Won YOON ; Iel Soo BANG ; Tae Wook HAHN
Journal of Veterinary Science 2015;16(2):187-194
Salmonella enterica Gallinarum (SG) causes fowl typhoid (FT), a septicemic disease in avian species. We constructed deletion mutants lacking the stress sigma factor RpoS, the nitric oxide (NO)-detoxifying flavohemoglobin Hmp, and the SsrA/SsrB regulator to confirm the functions of these factors in SG. All gene products were fully functional in wild-type (WT) SG whereas mutants harboring single mutations or a combination of rpoS, hmp, and ssrAB mutations showed hypersusceptibility to H2O2, loss of NO metabolism, and absence of Salmonella pathogenicity island (SPI)-2 expression, respectively. A triple-deletion mutant, SGDelta3 (SGDeltarpoSDeltahmpDeltassrAB), was evaluated for attenuated virulence and protection efficacy in two-week-old Lohmann layer chickens. The SGDelta3 mutant did not cause any mortality after inoculation with either 1 x 10(6) or 1 x 10(8) colony-forming units (CFUs) of bacteria. Significantly lower numbers of salmonellae were recovered from the liver and spleen of chickens inoculated with the SGDelta3 mutant compared to chickens inoculated with WT SG. Vaccination with the SGDelta3 mutant conferred complete protection against challenge with virulent SG on the chickens comparable to the group vaccinated with a conventional vaccine strain, SG9R. Overall, these results indicate that SGDelta3 could be a promising candidate for a live Salmonella vaccine against FT.
Administration, Oral
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Animals
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Bacterial Proteins/*genetics/immunology
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*Chickens
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Female
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Poultry Diseases/*immunology/microbiology
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Salmonella Infections, Animal/*immunology/microbiology
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Salmonella Vaccines/administration & dosage/genetics/*immunology
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Salmonella enterica/immunology/*physiology
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Vaccines, Attenuated/administration & dosage/genetics/immunology
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Virulence
6.Three-Dimensional Spheroid Formation of Cryopreserved Human Dental Follicle-Derived Stem Cells Enhances Pluripotency and Osteogenic Induction Properties
Hyo Jung KIM ; Iel Yong SUNG ; Yeong Cheol CHO ; Min Su KANG ; Gyu Jin RHO ; June Ho BYUN ; Won Uk PARK ; Myeong Gyun SON ; Bong Wook PARK ; Hyeon Jeong LEE ; Young Hoon KANG
Tissue Engineering and Regenerative Medicine 2019;16(5):513-523
BACKGROUND: Enhancement and maintenance of the stemness of mesenchymal stem cells (MSCs) is one of the most important factors contributing to the successful in vivo therapeutic application of these cells. In this regard, three-dimensional (3D) spheroid formation has been developed as reliable method for increasing the pluripotency of MSCs. Moreover, using a new protocol, we have previously shown that dental tissues of extracted wisdom teeth can be effectively cryopreserved for subsequent use as a source of autologous stem cells. The main purpose of this study is to analyze the stemness and in vitro osteogenic differentiation potential of 3D spheroid dental MSCs compared with conventional monolayer cultured MSCs. METHODS: In this study, MSC-characterized stem cells were isolated and cultured from long-term cryopreserved dental follicles (hDFSCs), and then 2D hDFSCs were cultured under 3D spheroid-forming conditions using a newly designed microchip dish. The spheroids (3D hDFSCs) thus produced were investigated and characterized with respect to stemness, MSC marker expression, apoptosis, cell cycle analysis, extracellular matrix (ECM) production, and osteogenic and adipogenic differentiation properties. RESULTS: In terms of MSC and senescence markers, spheroid cells showed no difference when compared with 2D hDFSCs; however, 3D hDFSCs were observed to have a higher proportion of cell cycle arrest and a larger number of apoptotic cells. Moreover, spheroids showed substantially increased levels of pluripotency marker (early transcription factors) and ECM protein expression. Compared with 2D hDFSCs, there was also a notable enhancement in the osteogenic induction potential of spheroids, although no differences were observed with respect to in vitro adipogenesis. CONCLUSION: To the best of our knowledge, this is the first study to demonstrate the application of a spheroid culture system for dental follicle-derived stem cells using a microchip dish. Although further studies are needed, including in vivo transplantation, the results obtained in this study indicate that spheroid hDFSCs derived from cryopreserved dental follicle tissues could be used as a valuable source of autologous stem cells for bone tissue regeneration.
Adipogenesis
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Aging
;
Apoptosis
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Bone and Bones
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Cell Cycle
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Cell Cycle Checkpoints
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Dental Sac
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Extracellular Matrix
;
Humans
;
In Vitro Techniques
;
Mesenchymal Stromal Cells
;
Methods
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Molar, Third
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Osteogenesis
;
Regeneration
;
Stem Cells