1.Studiedies on the Pollution Bacteria in the River Water of Baek Ma.
Korean Journal of Preventive Medicine 1974;7(1):175-176
The purpose of this study was to survey bacteria which was known as a fecal bacteria living in the human and animal gastro and intestinal tract. The colony density of the fecal coliform and fecal streptococci was 280 and 130 in 100ml sample amounts respectively. Staphylococcus aureus and Pseudomonas aeruginosa which is usually exist in swimming pool and was known as indicator of the pool water contamination was detected.
Animals
;
Bacteria*
;
Humans
;
Pseudomonas aeruginosa
;
Rivers*
;
Staphylococcus aureus
;
Swimming Pools
2.The variability of growth hormone(GH) response to growth hormone-releasing hormone(GHRH) according to the intrinsic growth hormone secretory rhythm in children with normal growth hormone reserve.
Journal of the Korean Pediatric Society 1993;36(3):312-319
The diagnostic value of GHRH in assessing GH secretion in biochemical GH sufficient short children was examined. GHRH (1microgram/kg i.v bolus) was given to three groups (upslope, trough, downslope) arbitrarily classified according to the basal pulsatile GH secretory pattern before GHRH administration. Cmax following GHRH administration were variable and overlapping. Two children in downslope group, three children in trough group, and one child in upslope group showed subnormal GH responses to GHRH administration despite of normal GH response to more than two classical GH provocative tests (Fig.1). The time of maximal GH response after GHRH administration (Tmax) in upslope group was significantly faster than those in other two groups (Fig.2). There was a highly significant correlation between AUC and Cmax (p<0.001) after GHRH administration (Fig.3) which suggests that AUC or Cmax can be used for parameters of GH response to GHRH each other. The AUC and Cmax after GHRH administration between three groups were significantly different (2764+/-579.1ng/ml min, 52.6 ng/ml, respectively in upslope group; 1645+/-383.9ng/ml min, 37.7+/-9.4ng/ml, respectively in downslope group; 1098+/-150.2ng/ml min, 26.3+/-4.5ng/ml, respectively in trough group)(p<0.005) (Fig.4, Table 1). In conclusion, GH responses to GHRH adminstration could be variable according to the basal GH secretory rhythm. Therefore, we should be cautious in interpreting the GH response to GHRH to evaluate the GH secretory capacity because subnormal GH response to GHRH administration could be observed even if normal GH response to classical GH provocative tests. In addition, the classification of these arbitary three groups (upslope, trough, and downslope) is remained to defined so as to promote the diagnostic value of GHRH in GH deficiency.
Area Under Curve
;
Child*
;
Classification
;
Growth Hormone*
;
Humans
3.The Effect of Long-Acting Gonadotropin-Releasing Hormone(GnRH) Analog on the Growth Velocity and Final Adult Height in the Children with True Precocious Puberty.
Journal of the Korean Pediatric Society 1994;37(3):309-316
The final adult height in the children with true precocious puberty are destined to be short due to excessive bone maturation, compared to the growth velocity, regardless of its etiologies. To improve this final shortness, long-acting GnRH analog have been tried to the children with true precocious puberty. We evaluated the parameters of the growth. including the growth velocity, height SDS, predicted final adult height obtained by Bayley-Pinneau method in the 12 children with true precocious puberty after treatment of long-acting GnRH analog, Decapeptyl, The results were as belows; 1) The mean age of pubertal onset was 5.0 +/-2.9 year of age (1~8.6 years of age). The bone age (10.2+/-3.5 years of age) at diagnosis were significantly higher than the chronological age (7.2 +/-3.0)(Fig. 1,p<0.001). 2) During treatment with Decapeptyl, the progression of bone maturation seemed to be reduced, compared to the progression of chronological age, but there was no statistically significant difference (p>0.05). 3) The responses of LH and FSH to GnRH administration at 6 months of treatment with Decapeptyl were significantly reduced to prepubertal level, compared to those before the initiation of Decapeptyl treatment. 4) The height SDS before and at the first year of treatment with Decapeptyl were 1.5+/-0.3 and 1.4 +/-0.2, which had no significant change during treatment (Fig, 3, p>0.05). But the height velocity during the first year of treatment (4.9+/-1.7 cm/year) was significantly reduced, compared to the height velocity during the one year before treatment (10.1+/-1.5 cm/year)(Fig, 4, p=0.01). 5) The predicted final adult height, obtained by Bayley-Pinneau method, at second year of treatment (174.4 +/-1.8 cm) were significantly improved, compared to those at initial treatment (151.7 +/-2.3 cm) and 6 months of treatment (156.9+/-2.5 cm)(Fig, 5, p<0.05). 6) The predicted final adult height, obtained at the first year of treatment had significant inverse correlation with the bone age at the initiation of treatment with Decapeptyl (Fig. 6, p<0.05,r=-0.84), but had no corrleation with the chronological age at the initiation of treatment. 7) During this study, we could not find any adverse reaction, which could come with the therapy of Decapeptyl, such as facial flushing and hypotension. With these result, we can conclude that the final adult height can be improved if true precocious puberty could be diagnosed early and treatment with long-acting GnRH analog be given early.
Adult*
;
Child*
;
Diagnosis
;
Flushing
;
Gonadotropin-Releasing Hormone
;
Humans
;
Hypotension
;
Puberty, Precocious*
;
Triptorelin Pamoate
4.The Correlation between the Age and Predicted Adult Height, Final Adult Height in the Children with Congenital Adrenal Hyperplasia, Especially 21-Hydroxylase Deficiency.
Journal of the Korean Pediatric Society 1994;37(3):300-308
We studied the correlation between the bone age and the predicted adult height, final adult height in the 69 children (30 salt losing form and 39 non-salt losing form) diagnosed as 21-hydroxylase deficiency, retrospectively. The results were as belows; 1) The bone age was similar to the chronological age in the children with salt-losing form (5.3+/-2.3 and 6.3+/-3.5 years, respectively), but the bone age was much more advanced, compared to the chronological age in the children with non-salt losing from (7.8+/- 2.9 and 12.0 +/-3.5 years, respectively)(Table 1.p<0.001) 2) In the children with salt-losing form, the height SDS for the chronological age and bone age, were -0.3 +/-1.3 and -1.1+/-2.6, respectively, which has no difference. In the children with non-salt losing form, the height SDS for the bone age, were much lower than the height SDS for the chronological age (-2.1+/-1.3 and 1.5+/-1.5, respectively)(Table 2.p<0.001). 3) The incidence of true precocious puberty is significantly higher in the children with non-salt losing from (26 children) than in the children with salt losing from (6 children)(p<0.05). 4) All children with salt losing form received hydrocortisone and mineralocorticoid within the first month of life, but the average age at the first hydrocortisone therapy in the children with non-salt losing form was 5.0 3.3(0.1~13.1) years of age. The dosages of hydrocortisone were similar in two forms (24.3 +/-7.6 mg/m2 in non-salt losing form). 5) The predicted adult height, obtained by BP method, was shortest among three methods predicting adult height (RWT; 181.5 +/-14.6 cm, TW 169.2 13.2 cm, BP; 151.6 +/-9.3 cm)(Fig.1.p<0.001). 6) Seventeen children with 21-hydroxylase deficiency attained 152.1+/-8.8 cm of final adult height (152.2+/-1.5 cm in 12 salt losing form and 152+/-1.4 cm in 5 non-salt losing form). These final adult heights were closest to the predicted adult height, obtained by BP method, compared to other two methods (Fig. 2.p<0.05). 7) Among 7 children, whose mid-parental height could be obtained, one child could reach within the target height and other 6 children reached far below the target height (Fig. 3.p<0.005). In conclusion, to attain normal growth and normal final adult height, in is suggested that meticulous control should be needed for adequate suppression of adrenal androgen and mineralocorticoid should be given to all children who have high level of plasma renin activity in the children with 21-hydroxylase deficiency, with regular follow-up of laboratory tests and growth parameter. Additionally, even if patient has non-salt losing form, the diagnosis should be made and adequate hormonal therapy should be given as soon as after birth.
Adrenal Hyperplasia, Congenital*
;
Adult*
;
Child*
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Hydrocortisone
;
Incidence
;
Parturition
;
Plasma
;
Puberty, Precocious
;
Renin
;
Retrospective Studies
;
Steroid 21-Hydroxylase*
5.Russell-Silver Syndrome.
Journal of the Korean Pediatric Society 1986;29(7):17-24
No abstract available.
Silver-Russell Syndrome*
6.Adventitial cystic disease of common femoral vein.
Journal of the Korean Surgical Society 2011;80(Suppl 1):S75-S79
Adventitial cystic disease (ACD) of venous system is an extremely rare condition. Very few reports of ACD in venous system have been described. In this report we discuss two cases of common femoral vein ACD that presented with a swollen leg by the obstruction of the vein. Ultrasound imaging showed the typical hypoechoic fluid filled cyst with a posterior acoustic window. Computed tomography scan and ascending venogram showed a stenosis to flow in the common femoral vein caused by an extrinsic mass. Trans-adventitial evacuation of cyst with removal of vein wall was performed for both cases. During operation we found the gelatinous material in the cysts arising in the wall of the common femoral vein and compressing the lumen. The patients were released after short hospitalization and have remained symptom free with no recurrence.
Acoustics
;
Adventitia
;
Constriction, Pathologic
;
Femoral Vein
;
Gelatin
;
Hospitalization
;
Humans
;
Leg
;
Recurrence
;
Veins
7.A study on the effects of early loading on the surrounding bone tissue of the dental implants.
Hui Un PARK ; Jae Ho YANG ; Sun Hyung LEE
The Journal of Korean Academy of Prosthodontics 1993;31(1):101-127
No abstract available.
Bone and Bones*
;
Dental Implants*
8.The effect of recombinant human growth hormone(rhGH) on the growth in children with chronic renal failure.
Sei Won YANG ; Yong CHOI ; Hyung Ro MOON
Journal of Korean Society of Endocrinology 1993;8(2):157-163
No abstract available.
Child*
;
Humans*
;
Kidney Failure, Chronic*
9.A clinical review on the cancer of the colon and rectum.
Hyung Wook LEE ; Ho Kyung CHUN ; Dae Hyun YANG
Journal of the Korean Surgical Society 1992;43(6):862-871
No abstract available.
Colonic Neoplasms*
;
Rectum*
10.Influence of Thickness of Empress 2 Ceramic on Fracture Strength.
Jung Woo KOH ; Jae Ho YANG ; Sun Hyung LEE
The Journal of Korean Academy of Prosthodontics 2000;38(4):446-460
All ceramic restorations have had a more limited life expectancy than metal ceramic crowns because of their lower strength. The relatively lower strength has limited the use of all-ceramic crowns to the areas where occlusal loads are lower. Therefore many researches have been done to increase the strength of all-ceramic crowns. IPS Empress 2 is a new type of lithium disilicate glass-ceramic with enhanced physical characteristics which has been in use clinically since 1998. Previous researches reported that the flexural strength of all-ceramic material was greater than 300MPa, and all-ceramic crowns can be used in staining or layering technique. The objective of this study was to investigate the influence of the thickness of IPS Empress 2 ceramic on fracture strength. Both staining technique and layering technique was investigated. Vita VMK was used as control. For all three groups, five specimens each of 0.8mm, 1.0mm, 1.4mm, 1.8mm, and 2.2mm thickness (a total of 75 specimens) were prepared. Control group: Vita VMK Porcelain specimens were prepared with dentine ceramic and liquid glazing was done. Group I: IPS Empress 2 were prepared with staining technique and stained twice and glazed once. Group II : IPS Empress 2 were prepared with layering technique and glazed after wash firing. The thickness and diameter of the specimen were measured and controlled after specimen preparation. Biaxial Flexure Test (ASTM Standard F394-78) was adopted as this test method produces results least affected by the edge condition of the specimens. Fracture strength was measured with Instron Universal Testing Machine. Conclusions are as follow : 1. The fracture strength was increase in order of control group, test group I, test group II. 2. Fracture strength of the group I(Empress 2 Staining) was 65.54 N in 0.8mm, 155.2 N in 1.0mm, 233.5 N in 1.44mm, 434.5 N in 1.8mm, and 600.1 N in 2.2mm. 3. Fracture strength of the group II (Empress 2 Layering) was 190.0 N in 0.8mm, 283.5 N in 1.0mm, 437.2 N in 1.4mm, 732.0 N in 1.8mm, and 1115.0 N in 2.2mm. 4. No statistical difference was found in flexural strengths according to thickness in a specified group(p>0.05).
Ceramics*
;
Crowns
;
Dental Porcelain
;
Dentin
;
Fires
;
Life Expectancy
;
Lithium