1.Changes in Renal Expression of Natriuretic Peptides and Their Receptors mRNA Induced by Head-down Suspension in Rats.
Korean Journal of Aerospace and Environmental Medicine 2003;13(4):184-189
BACKGROUND: Head-down suspension (HDS) of rats has been used as a model for the simulation of a microgravity environment. Atrial natriuretic peptide (ANP), C-type natriuretic peptides (CNP) and their receptors are found in the kidney, suggesting that these peptides could play a significant physiological role in the kidney. Therefore, this study was investigated the changes in the adaptations of renal natriuretic peptides and their receptors syntheses after 4 weeks of HDS in rats. METHODS: Unanesthetized, unrestrained, male Sprague-Dawley rats were subjected to either a horizontal position (control rats) or a -45degreeshead-down tilt using the tail-traction technique (HDS rats). This study observed the renal syntheses of natriuretic peptides as a expression of ANP and CNP mRNA, and also determined the expression of A-type natriuretic peptide receptor (NPR-A) mRNA and B-type NPR (NPR-B) mRNA. The expressions of natriuretic peptide and NPR mRNA were measured by reverse transcription-polymerase chain reaction with [(32)P]-dCTP following 4 weeks of HDS in the kidney of both control and HDS rats. RESULTS: After 4 weeks of HDS, the expression of ANP mRNA significantly (P<0.01) decreased, while CNP mRNA expression was showed the non-significant increasing trend in the kidney of HDS rats. NPR-A, which binds with ANP, was significantly (P<0.001) decreased in renal mRNA expression of HDS rats compared with controls. Expression in mRNA of NPR-B, which binds with CNP, showed a slightly decreasing trend in the kidney of rats following HDS. CONCLUSION: These results suggest that the renal adaptation following 4 weeks of HDS exerts to maintain the blood volume and electrolyte balance through attenuation of syntheses in the natriuretic peptide and its binding receptor, especially in ANP rather than in CNP systems.
Animals
;
Atrial Natriuretic Factor
;
Blood Volume
;
Humans
;
Kidney
;
Male
;
Natriuretic Peptides*
;
Peptides
;
Rats*
;
Rats, Sprague-Dawley
;
Receptors, Peptide
;
RNA, Messenger*
;
Water-Electrolyte Balance
;
Weightlessness
2.Expression of Neuron Specific Enolase, Chromogranin, and Synaptophysin in Peripheral Neuroblastic Tumors.
Hyung Seok KIM ; Jae Ha HWANG ; Jong Jae JUNG ; Min Cheol LEE
Korean Journal of Pathology 2000;34(8):588-596
The presence and distribution of pan-neuroendocrine markers such as neuron-specific enolase (NSE), chromogranin (CG), and synaptophysin (SYP) were investigated by immunohistochemistry in 15 cases of neuroblastic tumors, including four cases of neuroblastomas, six cases of ganglioneuroblastomas, and five cases of ganglioneuromas. Three cases of normal sympathetic ganglion were used for the normal control group. NSE was observed in all cases and both in ganglion cells and in neuropils. NSE was detected not only in the majority of the neuroblasts showing signs of differentiation, but also in some poorly differentiated neuroblasts. All cases of neuroblastic tumors were positive for CG, however, some variability of staining intensity and distribution patterns were noted. CG was found mainly in differentiated neuroblasts with enlarged cytoplasm and nuclei along the periphery of the perikaria, and was also found in the perinuclear regions of some undifferentiated cells. SYP was positive in 9 of 11 cases. In all of the 9 cases, SYP was detected in some differentiating neuroblasts and differentiated neuroblasts, as well as the mature ganglion cells. However, it has scarcely stained in dot or granular pattern. Two CG-negative tumors were also negative for SYP. Our data indicate that antibodies against NSE and CG are helpful as a diagnostic aid for neuroblastic tumors.
Antibodies
;
Cytoplasm
;
Ganglia, Sympathetic
;
Ganglion Cysts
;
Ganglioneuroblastoma
;
Ganglioneuroma
;
Immunohistochemistry
;
Neuroblastoma
;
Neurons*
;
Neuropil
;
Phosphopyruvate Hydratase*
;
Synaptophysin*
3.Extensive Condyloma Acuminatum in a NIDDM Patient.
Sun Wook HWANG ; Jong Jae JUNG ; Seok Mo KIM
Korean Journal of Dermatology 1999;37(12):1798-1802
A 20 year old woman with noninsulin-dependent diabetes mellitus (NIDDM) developed an extensive warty and focally cauliflower like mass located at anogenital area. Its histopathologic study and in situ DNA hybridization revealed this lesion an ordinary condyloma acuminatum without large bulbous downward proliferation of which HPV type was 6 and/or 11. The mass lesion was successfully treated by excision and electrodesiccation under spinal anesthesia. Intermittent recurrence of several papular condylomata acuminata was observed during a follow up period of 6 months, which were easily cured by podophylline application on each occasion.
Anesthesia, Spinal
;
Brassica
;
Condylomata Acuminata
;
Diabetes Mellitus, Type 2*
;
DNA
;
Female
;
Follow-Up Studies
;
Humans
;
Podophyllin
;
Recurrence
;
Young Adult
4.A Case of Sotos Syndrome.
In Seok KIM ; Joon Hee KIM ; Young Youn CHOI ; Jae Sook MA ; Tai Joo HWANG
Journal of the Korean Pediatric Society 1995;38(5):725-729
No abstract available.
Sotos Syndrome*
5.Clinical and Laboratory Findings of the 2012 Winter Seasonal Influenza A and B Outbreak at a Single Institution.
Jae Won CHOI ; Hyun Jun CHO ; Hwang Min KIM ; Seok HAHN
Korean Journal of Pediatric Infectious Diseases 2014;21(1):1-8
PURPOSE: The aim for this study was to investigate clinical manifestation of seasonal influenza A and B during the 2012 winter season in Wonju, South Korea. Their clinical and laboratorial characteristics and effect of oseltamivir were compared and analyzed. METHODS: Children under the age of 18 years who visited the Wonju Severance Christian Hospital with fever or acute respiratory symptoms and who were diagnosed with influenza A or B by rapid antigen test from nasopharyngeal swab were selected for the study. The medical records of patients were retrospectively reviewed. RESULTS: Influenza A was detected in 374 patients (83.7%), and influenza B in 72 (16.6%). The incidence of influenza A was highest in February (n=186), while that of influenza B was highest in March (n=36). The most common symptoms were fever (n=434, 97.1%) and cough (n=362, 81.0%). No significant differences were observed between influenza A and B in symptoms and laboratory data. Patients who had used oseltamivir within 2 days showed statistically lower admission rate, shorter admission duration, and lower incidence of pneumonia. CONCLUSION: This study found no statistical difference between influenza A and B, in symptoms, progression, and laboratory test, but those who were treated with oseltamivir given within 2 days of the onset of fever experienced more positive outcomes.
Child
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Cough
;
Fever
;
Gangwon-do
;
Humans
;
Incidence
;
Influenza, Human*
;
Korea
;
Medical Records
;
Oseltamivir
;
Pneumonia
;
Retrospective Studies
;
Seasons*
6.A Case of Lupus Erythematosus Profundus.
Jong Seok HWANG ; Gun Yoen NA ; Sang Lip CHUNG ; Jae Bok JUN
Korean Journal of Dermatology 1986;24(2):292-295
A 50-year-old woman with lupus erythematosus profundus of about a year's duration was reported. The patient had no history of discoid lupus erythematosus or systemic lupus erythematosus. Dermatologic examination revealed two, firm, freely movable, well demarcated, subcutaneous plaques, with mildly erythematous overlying skin, measuring 2 x 2 cm (right), 5 x 5 cm (left), was present on the both deltoid region. Histopathologically, this showed panniculitis. Diret immunofluorescence studies showed IgG and IgM deposition on the dermoepidermal junction.
Female
;
Fluorescent Antibody Technique
;
Humans
;
Immunoglobulin G
;
Immunoglobulin M
;
Lupus Erythematosus, Discoid
;
Lupus Erythematosus, Systemic
;
Middle Aged
;
Panniculitis
;
Panniculitis, Lupus Erythematosus*
;
Skin
7.Clinical characteristics of patients with acute hepatitis A in Gwangju-Chonnam province for recent 10 years.
Korean Journal of Medicine 2007;72(2):117-119
No abstract available.
Hepatitis A*
;
Hepatitis*
;
Humans
8.The Association between Unexplained Second-Trimester Human Chorionic Gonadotropin Elevations and Pregnancy Outcome.
Jae Woong HWANG ; Seong Un JEONG ; Jeong Wook SEO ; Yun Seok YANG ; Jun Sook PARK
Korean Journal of Obstetrics and Gynecology 1998;41(11):2790-2794
We conducted this cohort analytic study to determine whether women with unexplained elevations of maternal serum hCG at 15-18 weeks' gestation are at increased risk for pregnancy complications and adverse perinatal outcomes. The inclusion criteria were a singleton gestation, a confirmed gestational age, and an hCG level greater than 2.0 multiples of the median (MoM). The exclusion criteria were fetal anomalies, an abnormal karyotype, molar pregnancy, and an MSAFP level greater than 2.5 multiples of the median (MoM). A group of randomly selected women with hCG levels under 2.0 MoM served as controls. Patients with elevated levels of hCG had a significantly higher risk for PIH (17.9% versus 4.5%; P <.05) and preterm delivery (17.9% versus 3.5%; P<, 05) than control. But no significant differences were observed in the incidence of intrauterine growth restriction and low birth weight and in the newborn weight. We suggested that pregnancies with unexplained elevated hCG levels should be regarded as high-risk pregnancies. And these patients require careful monitoring with adequate obstetric management.
Abnormal Karyotype
;
Chorionic Gonadotropin*
;
Cohort Studies
;
Female
;
Gestational Age
;
Humans*
;
Hydatidiform Mole
;
Incidence
;
Infant, Low Birth Weight
;
Infant, Newborn
;
Pregnancy
;
Pregnancy Complications
;
Pregnancy Outcome*
;
Pregnancy*
;
Pregnancy, High-Risk
9.Double bridge PAP labelling of fibronectin in paraffin processed tissue.
Douk Ho HWANG ; Young Seok KIM ; In Yup CHANG ; Wang Jae LEE ; Ka Young CHANG
Korean Journal of Anatomy 1991;24(2):260-167
No abstract available.
Fibronectins*
;
Paraffin*
10.The Clinical Application of C-Reactive Protein in Acute Abdominal Pain.
Seok Joon JANG ; Jun Seok PARK ; Jae Wook KO ; Sang Won CHUNG ; Sung Pil CHUNG ; Tae Sik HWANG
Journal of the Korean Society of Emergency Medicine 2000;11(1):66-71
BACKGROUND: Abdominal pain is one of the most common complaints in the emergency department and the evaluation presents an extraordinary challenge to the emergency physician's skill. C-reactive protein, an acute phase protein which is increased in the presence of inflammation in various clinical conditions, has been proven useful in assessing disease severity, in monitoring the development of complications, and in evaluating the response to specific treatments. So we tried to determine whether CRP offers an advantage over other clinical or laboratory variables for decision-making in the management of acute abdominal pain in the emergency department. METHOD: Patients who came to a University Hospital ED with acute abdominal pain, between september 1, 1998 and November 30, 1998, were included in this study, Data collection included age, sex, duration of symptom, location of pain, and laboratory dta(white blood cell count, portion of neutrophils, ESR, CRP, amylase). RESULT: This study included 85 patients, 34 of whom were men. The mean age was 36.9+/-19.1 years. CRP might be useful to detect the serious condition, sensitivity 81%, but more useful to differentiate normal condition from serious condition in acute abdominal pain patients, specificity 83%. CONCLUSION: CRP is an useful indicator of decision-making to abdominal patients in the emergency department. Hospitalization or operation is very unlikely when CRP value is normal.
Abdominal Pain*
;
Acute-Phase Proteins
;
Blood Cell Count
;
C-Reactive Protein*
;
Data Collection
;
Emergencies
;
Emergency Service, Hospital
;
Hospitalization
;
Hospitals
;
Humans
;
Inflammation
;
Male
;
Neutrophils
;
Sensitivity and Specificity