1.Umbilical Vein Serum Nitric Oxide Concentration and Fetal Growth Restriction in Preeclampsia.
Korean Journal of Obstetrics and Gynecology 1999;42(9):1909-1913
OBJECTIVE: To evaluate the role of nitric oxide(NO) in fetal growth. METHOD: We measured umbilical vein serum NO in preeclampsia by Stuehr method and evaluated the association with the fetal birth weight and compared with normal pregnancy and twin pregnancy. RESULTS: 1. The umbilical vein serum nitrite concentration in preeclampsia was higher than that of the normal pregnancy (p<0.005). 2. Umbilical vein serum nitrite concentration of FGR(fetal growth restriction) baby group was higher than that of the non-FGR group in preeclampsia (p<0.005). 3 Umbilical vein serum nitrite concentration of larger baby group was higher than that of the smaller baby group in twin pregnancy but statistically not significant (p>0.005). 4. There were no significant differences of umbilical vein serum nitrite concentration between twin pregnancy and normal single pregnancy group (p>0.005). CONCLUSION: These results suggest that the increased nitric oxide production in the umbilical vein may be a compensatory response to improve blood flow and fetal growth in preeclampsia.
Birth Weight
;
Fetal Development*
;
Nitric Oxide*
;
Pre-Eclampsia*
;
Pregnancy
;
Pregnancy, Twin
;
Umbilical Veins*
2.A Study on the Age-related Changes of Glycosaminoglycan in the Human Skin.
Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 1997;35(3):499-506
BACKGROUND: The extracellular matrix constitutes the dermis supporting an overlying epidermal lining. A small portion of the cell component includes fibroblasts and mast cells, a large amount of fibrous tissue as struct ural proteins, intra-and extracellular adhesive molecules, and extracellular macromolecules, glyccsarninoglycan(GAG) and proteoglycan make up the dermal connective tissue. GAGs, polysacchavide chains secreted by fibroblasts, are the main macromolecules of the extracellular matrix. GAG chains occupy large amounts of extracellular space and form hydrated gels. The various manifestations observed during the cutaneous intrinsic aging process reflect the age-related changes of dermal connective tissue. OBJECTIVE: This study was directed to observe the age-related changes of GAG in human abdominal skin without the influences of photoaeging. MaTERIALS AND METHODS: The subjects involved in this study were grouped according to the age span of 10 years. A minimum of 3 skin samples were included in each age group. After permission, three to five grams of skin samples without known underlying skin diseases were obtained from the pat,ients who were subjected to open abdominal surgery under general anesthesia. GAGs were extracted and purified by repeated cetylpyridium chloride-ethanol precipitation from each skin sample. The qualitative and quantitative analysis of GAGs was carried out with the action of specific GAG degradirig enzymes. RESULTS: The amount of GAGs per gram skin tissue decreased slowly until the 4th decade and thereafter. A statistically- significant reduction in the amount of GAGs was noted between the age groups of under 10 and that of 51-60. This pattern of decline was similar with tte change of the hyaluronic acid content in gram skin tissue. The content of chondroitin sulfate and heparan sulfate also decreased as a function of ageing. The compositional ratio of GAGs showed no age related changes. The water content measured by acetone dehydration was reduced to a significant level up to the age group of over 30 years. CONCLUSION: These results imply that the wrinkling and laxity of skin during the chronological ageing process reflect the age-related reduction of GAGs and the water content of the skin.
Acetone
;
Adhesives
;
Aging
;
Anesthesia, General
;
Cellular Structures
;
Cetylpyridinium
;
Chondroitin Sulfates
;
Connective Tissue
;
Dehydration
;
Dermis
;
Extracellular Matrix
;
Extracellular Space
;
Fibroblasts
;
Gels
;
Heparitin Sulfate
;
Humans*
;
Hyaluronic Acid
;
Mast Cells
;
Proteoglycans
;
Skin Diseases
;
Skin*
;
Water
3.Increased Expression of Prostaglandin H synthase by Aspirin in Cultured Cells from Amnionic Cell Line WISH Cells.
Moon Seok CHA ; Jong Young KWAK
Korean Journal of Obstetrics and Gynecology 1998;41(11):2821-2826
Prostaglandins which are produced from amnionic cells are known to play a major role in uterine contraction and cervical dilatation in human. Recently it is reported that aspirin increases the expression of PGHS-1 and PGHS-2 in trophoblast cells from placenta. We examined here the changes of immunoreactive prostaglandin H synthase (PGHS) level by aspirin in cultured cells from amniotic fluid and human amnionic WISH cells. PMA (10-7 M), an activator of protein kinase C increased the induction of PGHS-2 in both cells with or without fetal calf serum. PGHS-2 protein was also increased significantly by 10-4 M aspirin at 6 hours in both cells in the presence of serum but it was not increased in the absence of serum. The expression of PGHS-1 protein was enhanced by asprin but not by PMA in the absence of serum. Other anti-inflammatory drugs such as acetaminophen, indomethacin, dexame- thasone, and mefenamic acid increased the PGHS-2 protein level in WISH cells. PMA-induced PGHS-2 expression in WISH cells was not decreased by aspirin, on the contrary, the level was increased additively. Our results show that the increased expression of PGHS in amnion cells or other amniotic fluid cells by aspirin and other several anti-inflammatory drugs is through an unidentified effect rather than feedback effect by depletion of prostaglandin.
Acetaminophen
;
Amnion*
;
Amniotic Fluid
;
Aspirin*
;
Cell Line*
;
Cells, Cultured*
;
Cyclooxygenase 2
;
Female
;
Humans
;
Indomethacin
;
Labor Stage, First
;
Mefenamic Acid
;
Placenta
;
Pregnancy
;
Prostaglandin-Endoperoxide Synthases*
;
Prostaglandins
;
Protein Kinase C
;
Trophoblasts
;
Uterine Contraction
4.New Perspectives on the Origin of Korean Acupuncture: Based on Materials from Xiaoyingzi Tomb, Yanji and Neighbouring Region.
Korean Journal of Medical History 2017;26(3):339-378
This article discusses the development of early acupuncture needles as demonstrated by the artifacts excavated from the Northern part of the Yanji district, Jilin, China, during the Japanese colonial era (reported in 1941). Numerous bone needles, stone needles, and other medical devices were found in the Xiaoyingzi excavation. The stone needles from Xiaoyingzi can be categorized into three grades, based on length, of 8cm, 12–15cm, and 18cm. A set of round stones for massage were also discovered, along with obsidian blades. These relics were carefully stored in the middle of the body in the stone coffin. In addition to Xiaoyingzi, stone needles were also excavated along the lower valley region of the Tuman (Tumen, 豆滿) River. These facts indicate that the owner was involved in medical practice, and that medical procedures using stone needles were quite popular at the time. This article carefully investigates that the relics have nothing to do with weaving textile or military use. Current research on the origin of acupuncture has been confined either to stone needles from the prehistoric age or to bronze needles, as well as to literature from the Warring States period to the Han China, during which acupuncture technology was considerably expanded. However, substantial knowledge on the “gap” between stone needles and metal needles has been procured through the analysis of Xiaoyingzi, Yanji. The findings of Xiaoyingzi are also significant in providing a more detailed reconstruction of the development of acupuncture in East Asia and emergence of acupuncture throughout history. A large amount of medical items (stone and bone needles, cases for needles, massage stone type bianshi, and etc.), have been excavated from Xiaoyingzi and other neighbouring sites, Along with geographic and ecological factors, this archeological data strongly suggests the medical tradition of using acupuncture needles was practiced around Tumen River basin in the Bronze Age (10th century B.C.).
Acupuncture*
;
Artifacts
;
Asian Continental Ancestry Group
;
China
;
Far East
;
Humans
;
Massage
;
Military Personnel
;
Needles
;
Rivers
;
Textiles
5.A Case of Irritant Dermatitis due to Pulsatilla Koreana.
Ju Seob KIM ; Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 1997;35(2):339-343
Pulsatilla koreana is a member of the buttercup familly(Ranuculaceae) which contains the unsaturated lactone, protoanemonin(C3H4O2), formed after injury to the plant by the breakdown of the glycoside ranunculin. It has been prescribed as a herbal medicine or a folk medicine for antipyretic, analgesic, anti-inflammatory, astringent and hemostatic effects in Korea. A 20 year-old famale patient presented with confluent vesicobullae on the erythematous base with a burning sensation on her upper back. This was caused by contact with crushed Pulsatilla koreana, a folk medicine for the treatment of left facial nerve palsy, that had occurred 10 days before her visit. A provocation patch test with Pulsatilla koreana upon a heathy male volunteers upper back showed strong positive reactions with the stalk and leaf in fresh and frozen stat.e and after thaw ing resptively. However no reaction was seen when the folk medicine was used in a dried form or with the root in any state. This case indicates that misadvice and ignorant folk remedies could cause misfortunate results to innocent people.
Burns
;
Dermatitis, Irritant*
;
Facial Nerve
;
Herbal Medicine
;
Humans
;
Korea
;
Male
;
Medicine, Traditional
;
Paralysis
;
Patch Tests
;
Plants
;
Pulsatilla*
;
Sensation
;
Volunteers
;
Young Adult
6.Changes of Serum Cytokines ( TNF-alpha, IL-beta, IL-6 ) in Toxemic Mice Induced by Vibrio vulnificus Cytolysin.
Seok Don PARK ; Ju Seob KIM ; Seung Hoon CHA
Korean Journal of Dermatology 1998;36(1):23-29
BACKGROUND: Cytokines such as TNF-a, and IL-1, 6, 8 are thought to mediate many host responses in patients with sepsis through the release of many kinds of inflammatory mediators. Vibrio vulnificus is a virulent, halophilic, marine, and Gram-negative bacterium causing wound infections or primary sepsis with fulminant course. It has been known to produce many exocellular factors, such as cytolysin and exozymes, which are possible causes of shock and tissue damage. OBJECTIVE: Our purpose was to investigate the changes of cytokines(TNF-a, Il-l p, and IL-6) after intravenous administration of V. vulnificus cytolysin which have known to be a major virulent factor for elucidating pathogenesis of septic shock. METHODS: After administration of V. vulnificus cytolysin(20 hemolytic units) and physiologic saline through a mouse tail vein, we obtained blood samples from the heart according to a time course(0, 30, 60, 90, 120, 240, and 360 minutes). We measured serum concentrations of circulating TNF- a, IL-1 p, and IL-6 using commercially available immunoassay kits. RESULTS: The serum concentration of TNF- a peaked at 60 min (1894 pg/ml, as compared with 829 pg/ml after saline administration), began to decrease at 90 min and fell to baseline at 360min. Concentration of IL-6 rose significantly at 90 min(>3,839 pg/ml) and began to decrease at 120 min, whereas the level of IL-1 0 increased slightly and the peaked around 90min(117 pg/ml) after the cytolysin injection. CONCLUSION: We conclude that the host response to cytolysin is associated with a brief pulse of circulating cytokines in the early stage of sepsis caused by V. vulnipcus infection.
Administration, Intravenous
;
Animals
;
Cytokines*
;
Heart
;
Humans
;
Immunoassay
;
Interleukin-1
;
Interleukin-6*
;
Mice*
;
Perforin*
;
Sepsis
;
Shock
;
Shock, Septic
;
Tumor Necrosis Factor-alpha*
;
Veins
;
Vibrio vulnificus*
;
Vibrio*
;
Wound Infection
7.Changes in Platelet Activation Markers by Leukocyte-Removal Filters.
Seok Lae CHAE ; Young Joo CHA ; Ae Ja PARK
Korean Journal of Blood Transfusion 1996;7(1):65-70
Twenty one units of platelet-rich plasma(PRP) were prepared from healthy volunteer blood donors, and each unit of the PRP was divided into two aliquots by using transfer bags. Using SEPACELLTM leukocyte-removal filters, each one aliquot of the PRP was filtered immediately after preparation, and the other aliquot was filtered after a 48-hour storage at a room temperature with continuous agitation. Belbre and after filtration, platelet numbers and two platelet activation markers, CD62 and CD63, were measured using hematologic autoanalyzer and'flow cytometry, respectively. The results were as follows: 1. The platelet numbers in the PRP were reduced after filtration. 2. On the point of the preparation of PRP, the mean percentage of CD63-posititve platelets(s32.86+/- 11.3.5%) was highehr than that of CD62-positive platelets(14.63+/-11.22%). 3. When filtered immediately after preparation of PRP, the CD62-positive platelets were significantly reduced(13.23+/-10.43%), however, CD63-positive platelets were not significantly reduced(29.83+/-11.05%). 4. After 48-hour storage, both two activation markers were increased, and the markers were significantly higher in the PRPs stored after filtration than in those stored without filtration. In conclusion CD63 would be a more sensitive platelet activation marker than CD62, and the platelets expressing CD62 seemed to be removed more than those expressing CD63 during filtration.
Blood Donors
;
Blood Platelets*
;
Dihydroergotamine
;
Filtration
;
Healthy Volunteers
;
Humans
;
Platelet Activation*
;
Platelet Count
8.Combination Therapy with Griseofulvin and Immunotherap (DNCB, DPCP)on Plane Warts.
Sang Won JEONG ; Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 1999;37(3):320-324
BACKGROUND: Although several kinds of treatment methods(destructive therapy, immunotherapy, etc) for plane warts have been attempted but there have been no entirely satisfactory treatments, because the plane wants are seen to recur frequently. OBJECTIVE: This study was aimed to evaluate the combination therapy of griseofulvin and immunotherapy(dinitrochlorobenzene=DNCB, diphenylcycloprope none=DPCP) on plane warts. METHOD: Sixteen patients(age range, 9 to 41; mean age, 21.8 years) with VPJ were treated with the combination therapy with griseofulvin(500mg/day) and single contact immunotherapy(DNCB or DPCP).
Dinitrochlorobenzene
;
Griseofulvin*
;
Immunotherapy
;
Warts*
9.Serum Eosinophil Cationic Protein Levels in Patients with Allergic Diseases.
Young Joo CHA ; Seok Lae CHAE ; Eun Ah CHANG
Korean Journal of Clinical Pathology 1999;19(3):348-352
BACKGROUND: Eosinophil cationic protein (ECP), one of the eosinophil granule proteins released during allergic reactions, may play a major role in the allergic inflammatory process. The measurement of ECP in serum may be a useful indicator of eosinophil activity in ongoing inflammatory processes. We investigated the clinical utility of ECP measurement in serum in patients with bronchial asthma, allergic rhinitis and atopic dermatitis, after standardizing sample processing. METHODS: We measured the serum ECP levels in patients with bronchial asthma (n=38), chronic obstructive pulmonary diseases (COPD) (n=13), respiratory symptoms (n=19), allergic rhinitis (n=26), non-allergic rhinitis (n=24), and atopic dermatitis (n=10) and in normal healthy controls (n=16) by the fluoroenzyme immunoassay using Pharmacia CAP System, and evaluated the correlation between ECP level and blood eosinophil number, or ECP and IgE levels. Blood eosinophil number was counted by the automated cell counter. RESULTS: Serum ECP levels were significantly higher in patients with bronchial asthma (15.6+/- 12.6 g/L), COPD (13.3+/-7.2 g/L), allergic rhinitis (23.8+/-13.2 g/L), and atopic dermatitis (20.6+/- 18.4 g/L) than in normal controls (7.5+/-4.2 g/L) (P <0.05). ECP levels were also significantly higher in patients with bronchial asthma and COPD than in patients with simple respiratory symptoms (6.9+/-4.7 g/L), whose ECP levels did not statistically differ from those in normal controls. ECP levels were also significantly higher in patients with allergic rhinitis than in patients with non-allergic rhinitis (9.5+/-5.1 g/L), whose ECP levels did not statistically differ from those in normal controls. Serum ECP level and eosinophil number in peripheral blood were correlated only in patients with bronchial asthma (r=0.53, P <0.01) and no correlation between ECP and IgE levels was found in all of the patients. CONCLUSIONS: ECP is the one of the secretory components released from the eosinophil granule and measurement of ECP in serum might be one of the noninvasive tool to assess the activity in relation to eosinophil involvement in various allergic diseases.
Asthma
;
Cell Count
;
Dermatitis, Atopic
;
Eosinophil Cationic Protein*
;
Eosinophil Granule Proteins
;
Eosinophils
;
Humans
;
Hypersensitivity
;
Immunoassay
;
Immunoglobulin E
;
Lung Diseases, Obstructive
;
Pulmonary Disease, Chronic Obstructive
;
Rhinitis
10.An Experimental Study of Osteoporosis Produced by Oophorectomy and /or Immobilization in Rats
Seok Hyun LEE ; Eung Nam CHA ; Chang Sung CHO
The Journal of the Korean Orthopaedic Association 1995;30(3):779-786
Previous studies implied association of osteoporosis with estrogen deficiency, immobilization and low calcium absorption only through epidemiological studies. There have been only a few experimental studies verifying the etiologic factors of osteoporosis in vivo condition. Authors conducted an experimental study using white rats(Sprague Dawley) in order to find out what the endocrinological and biochemical changes of experimentally induced osteoporosis are and how they behave with or against each other. White rats, eighty five in number of 3 to 6 months females and weighing 220±12.7gm were divided into four groups. They consisted of Group I(n=10) for control, Group II(n=25) for bilateral oophorectomy, Group III(n=25) for bilateral division of sciatic nerve and hip spica cast immobilization, and Group IV(n=25) for bilateral oophorectomy and bilateral division of sciatic nerve plus hip spica cast immobilization. Blood samples were taken preoperatively and postoperatively at six weeks to check Estradiol and Osteocalcin levels there of. And then, rats were sacrified immediately after the second sampling to retrieve femora for bone mineral density measurement and torsional stress test. Estradiol levels before operation were 21.4±13.3pg/ml for Group I, 31.6±3.1pg/ml for Group II, 25.6±4.5pg/ml for Group III and 33.7±4.5pg/ml for Group IV, respectively. There were no significant differences observable among the groups. Estradiol levels at six weeks postoperatively were 42.3±18.8pg/ml for Group I, 5.4±2.7pg/ml for Group II, 40.8±5pg/ml for Group III and 6.2±2.3 pg/ml for Group IV, respectively. Apparent reductions in group II and IV were proved of statistical significance. Osteocalcin levels preoperatively were 1.2±0.6ng/ml for Group I, 1.7±0.4ng/ml for Group II, 1.5±0.1lng/ml for Group III and 1.5±0.1.lng/ml for Group IV, respectively. At six weeks postoperatively they were 1.6±0.1lng/ml for Group I, 1.7±0.3ng/ml for Group II, 1.8±0.3ng/ml for Group III and 1.2±0.1lng/ml for Group IV, respectively. The differences and changes among the groups and measurements were not of statistical significance. Bone mineral contents at six weeks postoperatively were 0.248±0.03g for Group I, 0.177±0.03g for Group II, 0.226±0.04g for Group III and 0.092±0.01g in Group IV, respectively. Low values of Group II and IV compared to those of Group I and III were of statistical significance.(P=0.0001) Torsional strength of bones at six weeks postoperatively were 4.0±0.2N/m for Group I, 1.5±0.1N/m for Group II, 1.5±0.1N/m for Group III and 1.4±0.1N/m for Group IV, respectively. Decreases of experimental groups(II, III, IV) compared to that of control group(I) were of statistical significance, but differences among the experimental groups were not of significance(p>0.05). For above observations, it was possible to conclude that osteoporosis measurable by bone mineral content and torsional stress test was caused by oophorectomy and immobilization in vivo, the former of which was more rapid and profound than the latter during early phase. When both factors, i.e., oophorectomy and immobilization are exerated simultaneously. the resultant osteoporosis was found in higher degree than either factor only, but not at incremental degree as one may expect.
Absorption
;
Animals
;
Bone Density
;
Calcium
;
Epidemiologic Studies
;
Estradiol
;
Estrogens
;
Exercise Test
;
Female
;
Hip
;
Humans
;
Immobilization
;
Osteocalcin
;
Osteoporosis
;
Ovariectomy
;
Rats
;
Sciatic Nerve