PURPOSE:Several drugs such as insulin, propranolol, levodopa, glucagon and clonidine have been used for pharmacological growth hormone(GH) provocative test, and each medical center chooses different combinations of drugs during GH provocative tests. In this study, authors compared three drugs insulin(RI), clonidine(C), and propranolol-levodopa(P-L) in terms of GH secretory ability to select the most effective drug. METHODS:Study patients consisted of 63 children with idiopathic growth hormone deficiency, who were diagnosed 'H deficiency'in the department of pediatrics, Kyungpook National University Hospital between January, 1995 and December, 1995. Peak values of GH by each drug were analyzed and following results were obtained. RESULTS:Numbers of patients who showed peak GH values of < or = 5ng/mL, 6-9ng/ mL or > or = 10ng/mL were 23, 22 and 18 respectively in GH provocative test using RI, 48, 12 and 3, respectively in GH provocative test using P-L, 55, 8 and 0, respectively in GH provocative test using C. The numbers of patients showing peak growth hormone values over 6ng/mL were more significantly in GH provocative test using RI than those using P-L or C(P<0.05). CONCLUSION: Among drugs authors have been using in GH provocative tests, RI was more effective in stimulating growth hormone secretion than P-L or C. Authors feel that RI should be included in GH provocative tests for the diagnosis of growth hormone deficiency.
Child ; Clonidine* ; Diagnosis ; Glucagon ; Growth Hormone* ; Gyeongsangbuk-do ; Humans ; Insulin* ; Levodopa ; Pediatrics ; Propranolol

This study was performed to investigate the effect of octreotide on the contractility of rat vas deferens. The -smooth muscle strips isolated from the prostatic portion were myographied in isolated organ bath. Electric -field stimulation (monophasic square wave, duration : 1. mSec, voltage : 50 V, frequency : 5 Hz or 30 Hz, train : 10 Sec) produced reproducible contraction. The contraction was composed of two component, first phasic component (FPC) and second tonicc component (STC).. These contractions were abolished by -tetrodotoxin (1 microM). Octreotide inhibited the field stimulation induced contractions both FPC and STC concentration- dependently. The FPC was decreased by a desentization of purinergic receptor by pretreatment of mATP, and the STC was decreased by pr,,creatment of reserpine (3 mg/kg, EP) 24 hours before experiments. Octreotide reduced the field stimulation induced contraction in the presence of mATP and of reserpinized muscle strips. The inhibitory effect of octreotide was more potent at 5 Hz than at 30 Hz. Octreotide did not affect basal ton and exogenous norepinephrine- or ATP-induced contraction. These results suggest that octreotide inhibit the contractility of the isolated rat vas deferens by inhibition of the release of neurotransmitters, both ATP and norepinephrine from adrenergic nerve terminal.
Adenosine Triphosphate ; Animals ; Baths ; Neurotransmitter Agents ; Norepinephrine ; Octreotide* ; Rats* ; Reserpine ; Vas Deferens*

BACKGROUND: Typhoid fever, caused by Salmonella enterica serotype Typhi, remams an important public health problem in Korea, and asymptomatic chronic carriers play a role in the endemicity. However, the molecular studies of S. typhi isolates are very limited. We characterized clinical isolates of S. typhi by molecular and phage typing tools for the extent of genetic diversity and relatedness among the isolates. METHODS: A total of 49 S. typhi isolates from sporadic cases of typhoid fever were collected in 3 university hospitals in Seoul during 1992 to 1998 and examined for in vitro susceptibility to 14 antimicrobials by disk diffusion method, ribotyping using PstI restriction enzyme, and pulsed-field gel electrophoresis (PFGE) using XbaI and Vi phage typing. The distribution of the epidemiological types and genomic DNA relatedness were analyzed. RESULTS: Forty-five out of 49 isolates were susceptible to all drugs tested. Thirty-two out of 47 were typable by phage typing and 56.3% possessed the phage type El or Ml. Forty-nine isolates divided into 6 different ribotypes (A to F) and 19 different PFGE types (AO through A17, BO) by ribotyping and PFGE analysis, respectively. Based on the 3 typing systems, 32 isolates divided into 17 different epidemiological types. The E1-A-A12 (phage type-ribotype-PFGE type) was most prevalent (18.8Fo) and isolated only in 1998, but distributed in various areas of isolation. The next prevalent M1-A-A1 (15.6%) was isolated from 1992 through 1998. The genetic relatedness based on PFGE analysis revealed that F (coefficient of similarity) values are 0.64 to 1.0 and 0.52 for A subtypes and BO type, respectively. CONCLUSIONS: We conclude that the circulating S. typhi strains in Seoul city show considerable genetic diversity, whereas most of them seems to be clonally related.
Bacteriophage Typing ; Bacteriophages ; Diffusion ; DNA ; Electrophoresis, Gel, Pulsed-Field ; Genetic Variation ; Hospitals, University ; Korea ; Public Health ; Ribotyping ; Salmonella enterica* ; Salmonella typhi ; Salmonella* ; Seoul* ; Typhoid Fever

No abstract available.
Ultrasonography*

Isolated ACTH deficiency is a uncommon disorder causing secondary adrenocortical insufficiency. Less than 200 cases have been reported in the world. The major clinical manifestations are hypoglycemia, weight loss, hypotension, anemia, weakness, nausea, inability to excrete water load, and hyponatremia. A 56-year-old male was admitted because of weakness, fatigue, nausea and vomiting. He was pallor and not associated with hyperpigmentation. The basal plasma ACTH and cortisol levels were 8.30 pg/ml and 0.6 ug/dl. The serum cortisol did not response to rapid ACTH stimulation test. On combined pituitary stimulation test, the cortisol did not response to insulin-induced hypoglycemia. Other anterior pituitary hormones showed normal responses except elevated prolactin level. Six months after glucocorticoid replacement therapy, the elevated basal prolactin level returned to normal. Brain MRI did not show any anatomic abnormalities of the sellar and suprasella area. We report a case of isolated ACTH deficiency accompanied by hyperprolactineia, which respond to glucocorticoid replacement therapy.
Adrenal Insufficiency ; Adrenocorticotropic Hormone* ; Anemia ; Brain ; Fatigue ; Humans ; Hydrocortisone ; Hyperpigmentation ; Hyperprolactinemia* ; Hypoglycemia ; Hyponatremia ; Hypotension ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Nausea ; Pallor ; Pituitary Hormones, Anterior ; Plasma ; Prolactin ; Vomiting ; Water ; Weight Loss

Recently xenotransplantation has been thought as a final solution for the controi of donor organ shortage in allograft. In order to be a ciinicai entity, xenotransplantation has many obstacles such as hyperacute rejection and delayed xenogratt rejection as a potent immunologic reaction, zoonosis and ethical problems. We already reported the eariy immunoiogic events occuring soon after xenograft in animal model, in which natural antibody and complement have a crucial roie in rejection response. As a further step for the prolongation of graft survival, we used anticomplement agent (cobra venom factor, CVF) in the same model. Graft survival in discordant (guinea pig-to-rat) xenogratt was extended from 30.6 minutes to 2 days following singie injection of CVF, which showed similar pattern of rejection with the concordant xenogratt in terms of time of rejection response after grafting. In this setting antibody response in the blood did not show any difference between that of pre CVF and post CVF, even though IgM response was more pronounced than IgG. The complement activity in the blood showed marked suppression following CVF injection. Intragraft complement gene (C3 mRNA) expression in CVF injected discordant showed delayed response in a similar pattern like that of concordant xenograft. Interestingly enough intragraft anticomplement gene expression showed the simiiar pattern of response with the complement. From these results we can conclude that anticomplement agent (CVF) extended the graft survival in discordant xenograft upto the level of concordant xenograft by shifting the complement activation response from that of discordant to concordant xenograft.
Rats ; Animals

PURPOSE: Substantial tissue necrosis after snake bites requiring coverage with flap surgery is extremely rare. In this article, we report 7 cases of soft tissue defects in the upper and the lower extremities caused by snake bites, which needed to be covered with flaps. Among the vast mass of publications on snake bites there has been no report that focuses on flap coverage of soft tissue defects due to snake bite sequelae. METHODS: Seven cases of soft tissue defects in tendon, ligament, or bone exposure after snake bites were included. All patients were males without comorbidities, the average age was 35 years. All of them required coverage with a flap. In 6 cases, the defects were localized on the upper extremity, in one case the lesion was on the lower extremity. Local flaps were used in 6 cases, one case was covered with a free flap. The surgical procedures included one kite flap, one cross finger flap and digital nerve reconstruction with a sural nerve graft, one reverse proximal phalanx island flap, one groin flap, one adipofascial flap, one neurovascular island flap, and one anterolateral thigh free flap. The average interval from injury to flap surgery was 23.7 days. RESULTS: All flaps survived without complication. All patients regained a good range of motion in the affected extremity. Donor site morbidities were not observed. The case with digital nerve reconstruction recovered a static two point discrimination of 7mm. The patient with foot reconstruction can wear normal shoes without a debulking procedure. CONCLUSION: The majority of soft tissue affection after snake bites can be treated conservatively. Some severe cases, however, may require the coverage with flap surgery after radical debridement, especially, if there is exposure of tendon, bone or neurovascular structures. There is no doubt that definite coverage should be performed as soon as possible. But we also want to point out that this principle must not lead to a premature coverage. If the surgeon is not certain that the wound is free of necrotic tissue or remnants of venom, it is better to take enough time to get a proper wound before flap surgery in order to obtain a good functional and cosmetic result.
Comorbidity ; Cosmetics ; Debridement ; Discrimination (Psychology) ; Extremities ; Fingers ; Foot ; Free Tissue Flaps ; Groin ; Humans ; Ligaments ; Lower Extremity ; Male ; Necrosis ; Organic Chemicals ; Range of Motion, Articular ; Shoes ; Snake Bites ; Snakes ; Sural Nerve ; Tendons ; Thigh ; Tissue Donors ; Transplants ; Upper Extremity ; Venoms

PURPOSE: This experimental study was conducted to determine serial morphological changes of rat's kidney with chronic puromycin aminonucleoside (PAN) nephropathy. Special emphasis was given to the occurrence of glomerular hypertrophy and its relationship to the subsequent development of focal segmental glomerulosclerosis(FSGS). METHODS: Sprague-Dawley rats weighing 200-230g were used and divided into control(n=9) and experimental group(n=15). Rats were given subcutaneous injections of PAN at a dose of of 2mg/100g body weight, or an equivalent volume of normal saline and six injection were given over a period of 9 weeks, at weeks 0, 1, 3, 5, 7 and 9. At weeks 4, 8 and 11, rats were sacrificed and kidney weight, kidney weight/body weight(%) and various laboratory tests including serum protein and albumin were determined. Renal tissues were prepared with Histochoice(R) fixative and paraffin embedding for morphologic study. RESULTS: Kidney weight and kidney weight/body weight(%) were increased significantly in experimental group compared to controls at 4, 8 and 11 weeks. Heavy proteinuria along with lowering of serum protein and albumin and elevation of serum cholesterol was seen in experimental group at week 4 and this change became more marked on weeks 8 and 11. The frequency of FSGS in experimental animal, at week 4, 8 and 11 were 0.6%, 10.6% and 26.2% respectively(p<0.05) and the development of FSGS was more marked in juxtamedullary glomeruli compared to cortical glomeruli. Glomerular surface area showed significant increase in experimental animals compared to controls(p<0.01), the percentage of increase being 12.0, 14.7 and 12.3% at week 4, 8 and 11. And the surface areas of juxtamedullary glomeruli were larger than those of cortical glomeruli throughout the study period. CONCLUSION: In summary, present study indicates that glomerular hypertrophy occurs and precedes the development of FSGS in rats with chronic PAN nephropathy and juxtamedullary glomeruli are more susceptible to developing FSGS compared to cortical glomeuli.
Animals ; Body Weight ; Cholesterol ; Hypertrophy* ; Injections, Subcutaneous ; Kidney ; Paraffin Embedding ; Proteinuria ; Puromycin Aminonucleoside* ; Puromycin* ; Rats* ; Rats, Sprague-Dawley ; Sclerosis*

No abstract available.
Neurilemmoma*

PURPOSE: This retrospective study has been undertaken to find out the clinical outcome of children with HS nephritis and its relationship with initial clinical presentation and/or renal pathologic finding. PATIENTS AND METHODS: Study population consisted of 59 children with HS nephritis who have been admitted to the Pediatric department of KyungPook University Hospital from 1987 to 1999, and biopsy was done with indications of heavy proteinuria ( > 1 g/m2/day ) lasting over 1 month, nephrotic syndrome, and persistent hematuria and/or proteinuria over 1 year. Patients were divided clinically into 3 groups ; isolated hematuria, hematuria with proteinuria and heavy proteinuria (including nephrotic syndrome). Biopsy findings were graded from I-V according to International Study of Kidney Disease in Children (ISKDC). RESULTS: Mean age of presentation was 8.1+/-3.0 years and slight male proponderance was noted ( 33 boys and 26 girls ). Histopathologic grading showed Grade I ; 2, Grade II ; 44, and Grade III ; 13 cases. Clinical outcome at the follow-up period of 1-2 years (49 cases) and 3-4 years (30 cases) showed normal urinalysis in 15 ( 30.6% ) and 18 cases ( 60.0%), persistent isolated hematuria in 20 ( 40.8% ) and 2 cases ( 6.7 % ), hematuria with proteinuria in 11 ( 22.5% ) and 8 cases ( 26.6% ), and persistent heavy proteinuria in 3 ( 6.1% ) and 2 cases ( 6.7% ) respectively. Clinical outcome according to histopathologic grading showed the frequency of normalization of urinalysis being lower in Grade III compared to grade I or II. Clinical outcome according to initial clinical presentation showed no relationship to the normalization of urinalysis at follow-up periods. However, 15-20% of children with initial heavy proteinuria showed persistent heavy proteinuria ( 3 out of 20 cases at 1-2 years, and 2 out of 10 case at 3-4 years of follow-up periods). CONCLUSION: The majority of children with HS nephritis (histopathologic grade I, II, III) improved within 3-4 years, and persistent heavy proteinuria was seen only in a few of children with initial clinical presentation of heavy proteinuria.
Biopsy ; Child* ; Female ; Follow-Up Studies ; Gyeongsangbuk-do ; Hematuria ; Humans ; Kidney Diseases ; Male ; Nephritis* ; Nephrotic Syndrome ; Proteinuria ; Retrospective Studies ; Urinalysis