1.Bee venom reduces burn-induced pain via the suppression of peripheral and central substance P expression in mice
Dong-Wook KANG ; Jae-Gyun CHOI ; Jaehyuk KIM ; Jin Bong PARK ; Jang-Hern LEE ; Hyun-Woo KIM
Journal of Veterinary Science 2021;22(1):e9-
Background:
Scalding burn injuries can occur in everyday life but occur more frequently in young children. Therefore, it is important to develop more effective burn treatments.
Objectives:
This study examined the effects of bee venom (BV) stimulation on scalding burn injury-induced nociception in mice as a new treatment for burn pain.
Methods:
To develop a burn injury model, the right hind paw was immersed temporarily in hot water (65°C, 3 seconds). Immediately after the burn, BV (0.01, 0.02, or 0.1 mg/kg) was injected subcutaneously into the ipsilateral knee area once daily for 14 days. A von Frey test was performed to assess the nociceptive response, and the altered walking parameters were evaluated using an automated gait analysis system. In addition, the peripheral and central expression changes in substance P (Sub P) were measured in the dorsal root ganglion and spinal cord by immunofluorescence.
Results:
Repeated BV treatment at the 2 higher doses used in this study (0.02 and 0.1 mg/kg) alleviated the pain responses remarkably and recovered the gait performances to the level of acetaminophen (200 mg/kg, intraperitoneal, once daily), which used as the positive control group. Moreover, BV stimulation had an inhibitory effect on the increased expression of Sub P in the peripheral and central nervous systems by a burn injury.
Conclusions
These results suggest that a peripheral BV treatment may have positive potency in treating burn-induced pain.
2.Partial Androgen Insensitivity Syndrome Presenting with Gynecomastia.
Sung Won LEE ; Dong Shin KWAK ; In Sub JUNG ; Joo Hee KWAK ; Jung Hwan PARK ; Sang Mo HONG ; Chang Bum LEE ; Yong Soo PARK ; Dong Sun KIM ; Woong Hwan CHOI ; You Hern AHN
Endocrinology and Metabolism 2015;30(2):226-230
Gynecomastia is a benign enlargement of the male breast caused by the proliferation of glandular breast tissue. Determining the various causes of gynecomastia such as physiological causes, drugs, systemic diseases, and endocrine disorders is important. Androgen insensitivity syndrome (AIS) is a rare endocrine disorder presenting with gynecomastia and is a disorder of male sexual differentiation caused by mutations within the androgen receptor gene. All individuals with AIS have the 46 XY karyotype, although AIS phenotypes can be classified as mild, partial or complete and can differ among both males and females including ambiguous genitalia or infertility in males. We experienced a case of partial AIS presenting with gynecomastia and identified the androgen receptor gene mutation.
Androgen-Insensitivity Syndrome*
;
Breast
;
Disorders of Sex Development
;
Female
;
Gynecomastia*
;
Humans
;
Infertility
;
Karyotype
;
Male
;
Phenotype
;
Receptors, Androgen
;
Sex Differentiation
3.Safety and Efficacy of Modern Insulin Analogues.
Hye Jin YOO ; Keun Yong PARK ; Kang Seo PARK ; Kyu Jeung AHN ; Kyung Wan MIN ; Jeong Hyun PARK ; Sang Ah CHANG ; Bong Soo CHA ; Dong Jun KIM ; Yong Seong KIM ; Tae Keun OH ; Suk CHON ; Il Seong NAM-GOONG ; Mi Jin KIM ; Hye Soon KIM ; Young Sik CHOI ; You Hern AHN ; Sora LEE ; Sei Hyun BAIK
Diabetes & Metabolism Journal 2013;37(3):181-189
BACKGROUND: A1chieve(R) was a noninterventional study evaluating the clinical safety and efficacy of biphasic insulin aspart 30, insulin detemir, and insulin aspart. METHODS: Korean type 2 diabetes patients who have not been treated with the study insulin or have started it within 4 weeks before enrollment were eligible for the study. The patient selection and the choice of regimen were at the discretion of the physician. The safety and efficacy information was collected from the subjects at baseline, week 12, and week 24. The number of serious adverse drug reactions (SADRs) was the primary endpoint. The changes of clinical diabetic markers at week 12 and/or at week 24 compared to baseline were the secondary endpoints. RESULTS: Out of 4,058 exposed patients, 3,003 completed the study. During the study period, three SADRs were reported in three patients (0.1%). No major hypoglycemic episodes were observed and the rate of minor hypoglycemic episodes marginally decreased during 24 weeks (from 2.77 to 2.42 events per patient-year). The overall quality of life score improved (from 66.7+/-15.9 to 72.5+/-13.5) while the mean body weight was slightly increased (0.6+/-3.0 kg). The 24-week reductions in glycated hemoglobin, fasting plasma glucose and postprandial plasma glucose were 1.6%+/-2.2%, 2.5+/-4.7 mmol/L, and 4.0+/-6.4 mmol/L, respectively. CONCLUSION: The studied regimens showed improvements in glycemic control with low incidence of SADRs, including no incidence of major hypoglycemic episodes in Korean patients with type 2 diabetes.
Biphasic Insulins
;
Body Weight
;
Diabetes Mellitus, Type 2
;
Drug Toxicity
;
Fasting
;
Glucose
;
Hemoglobins
;
Humans
;
Incidence
;
Insulin
;
Insulin Aspart
;
Insulin, Isophane
;
Insulin, Long-Acting
;
Patient Selection
;
Plasma
;
Quality of Life
;
Republic of Korea
;
Treatment Outcome
;
Insulin Detemir
4.A Case of Acute Suppurative Thyroiditis with Thyrotoxicosis in an Elderly Patient.
Bo Sang KIM ; Kil Woo NAM ; Jeong Eun KIM ; Ji Hoon PARK ; Jun Sik YOON ; Jung Hwan PARK ; Sang Mo HONG ; Chang Bum LEE ; Yong Soo PARK ; Woong Hwan CHOI ; You Hern AHN ; Dong Sun KIM
Endocrinology and Metabolism 2013;28(1):50-54
Acute suppurative thyroiditis (AST) is a rare condition, as the thyroid gland is relatively resistant to infection. Thyroid function tests are usually normal in AST. A few cases of AST associated with thyrotoxicosis have been reported in adults. We report a case of AST that was associated with thyrotoxicosis in a 70-year-old woman. We diagnosed AST with thyroid ultrasonography and fine needle aspiration of pus. The patient improved after surgical intervention and had no anatomical abnormality. Fine needle aspiration is the best method for the difficult task of differentiating malignancy and subacute thyroiditis from AST with thyrotoxicosis. Earlier diagnosis and proper treatment for AST might improve the outcome.
Adult
;
Aged
;
Biopsy, Fine-Needle
;
Female
;
Humans
;
Suppuration
;
Thyroid Function Tests
;
Thyroid Gland
;
Thyroiditis, Subacute
;
Thyroiditis, Suppurative
;
Thyrotoxicosis
5.A Case of Metformin-Induced Acute Kidney Injury without Lactic Acidosis: A Case Report.
Hae Ryong JEONG ; Jeong Im CHOI ; Jung Hwan PARK ; Sang Mo HONG ; Joon Sung PARK ; Chang Beom LEE ; Yong Soo PARK ; Dong Sun KIM ; Woong Hwan CHOI ; You Hern AHN
The Korean Journal of Critical Care Medicine 2012;27(4):283-285
Metformin is an oral antidiabetic drug in the biguanide class, which is used for type 2 diabetes. The side effects of metformin are mostly limited to digestive tract symptoms, such as diarrhea, flatulence and abdominal discomfort. The most serious potential adverse effect of metformin is lactic acidosis. A 51-year-old man was admitted due to hypoglycemia as a result of an overdose of antidiabetic drugs. He took massive dose of metformin. Conservative treatment failed for metabolic acidosis without lactic acidosis accompanied by acute kidney injury. Hemodialysis was executed to correct the high anion gap metabolic acidosis and acute kidney injury, and the patient recovered fully from metabolic acidosis. This case illustrates that the presence of clinical conditions, such as metformin-induced acute kidney injury and metabolic acidosis, can be developed without lactic acidosis. Prompt recognition of metabolic acidosis and early intervention with hemodialysis can result in a successful clinical outcome.
Acid-Base Equilibrium
;
Acidosis
;
Acidosis, Lactic
;
Acute Kidney Injury
;
Diarrhea
;
Early Intervention (Education)
;
Flatulence
;
Gastrointestinal Tract
;
Humans
;
Hypoglycemia
;
Hypoglycemic Agents
;
Metformin
;
Middle Aged
;
Renal Dialysis
6.A Case of Demyelinating Peripheral Neuropathy Associated with Hashimoto's Thyroiditis.
Jung Hwan PARK ; Sang Mo HONG ; Chang Bum LEE ; Yong Soo PARK ; Dong Sun KIM ; Woong Hwan CHOI ; You Hern AHN
Journal of the Korean Geriatrics Society 2011;15(4):234-239
Peripheral neuropathy is somewhat common in hypothyroidism. But, demyelinating peripheral neuropathy in Hashimoto's thyroiditis is extremely rare. The pathophysiology of demyelinating peripheral neuropathy associated with Hashimoto's thyroiditis is unclear and complex and various mechanisms including the cell mediated and antibody mediated responses may be operative. We report a 68-year-old woman who presented with paresthesia and gait disturbance. She was diagnosed with hypothyroidism 7 years prior and has been on thyroid hormone. Serum antithyroglobulin antibody was significantly elevated. Nerve conduction studies revealed sensory-motor demyelinating polyneuropathy with prolonged distal latencies and reduced conduction velocities. She was under the suspicion of the lymphoma of thyroid. Surgery was performed which turned up to be Hashimoto's thyroiditis. With the impression of rare demyelinating peripheral neuropathy associated with Hashimoto's thyroiditis after other causes were excluded, she was treated with steroid which ameliorated rapidly her neurological symptoms.
Aged
;
Autoantibodies
;
Female
;
Gait
;
Humans
;
Hypothyroidism
;
Lymphoma
;
Neural Conduction
;
Paresthesia
;
Peripheral Nervous System Diseases
;
Polyneuropathies
;
Polyradiculoneuropathy
;
Steroids
;
Thyroid Gland
;
Thyroiditis
7.Differences in Clinical Characteristics between Patients with Non-Erosive Reflux Disease and Erosive Esophagitis in Korea.
Na Rae HA ; Hang Lak LEE ; Oh Young LEE ; Byung Chul YOON ; Ho Soon CHOI ; Joon Soo HAHM ; You Hern AHN ; Dong Hee KOH
Journal of Korean Medical Science 2010;25(9):1318-1322
Gastroesophageal reflux disease (GERD) is caused by abnormal reflux of gastric contents into the esophagus. GERD can be divided into two groups, erosive esophagitis and non-erosive reflux disease (NERD). The aim of this study was to compare the clinical characteristics of patients with erosive esophagitis to those with NERD. All participating patients underwent an upper endoscopy during a voluntary health check-up. The NERD group consisted of 500 subjects with classic GERD symptoms in the absence of esophageal mucosal injury during upper endoscopy. The erosive esophagitis group consisted of 292 subjects with superficial esophageal erosions with or without typical symptoms of GERD. Among GERD patients, male gender, high body mass index, high obesity degree, high waist-to-hip ratio, high triglycerides, alcohol intake, smoking and the presence of a hiatal hernia were positively related to the development of erosive esophagitis compared to NERD. In multivariated analysis, male gender, waist-to-hip ratio and the presence of a hiatal hernia were the significant risk factors of erosive esophagitis. We suggest that erosive esophagitis was more closely related to abdominal obesity.
Adult
;
Alcohol Drinking
;
Body Mass Index
;
Esophagitis, Peptic/complications/*diagnosis
;
Female
;
Gastroesophageal Reflux/complications/*diagnosis
;
Gastroscopy
;
Hernia, Hiatal/complications
;
Humans
;
Male
;
Middle Aged
;
Obesity/complications
;
Republic of Korea
;
Risk Factors
;
Sex Factors
;
Smoking/adverse effects
;
Triglycerides/blood
;
Waist-Hip Ratio
8.Pathways Analysis for Depression in Hospitalized Acute Burn Patients.
Ra Hel PARK ; Boung Chul LEE ; Hae Jun LIM ; Yong Suk CHO ; Do Hern KIM ; Jun HUR ; Wook CHUN ; Jong Hyun KIM ; Cheong Hoon SEO ; Byeong Kil YEON ; Chang Hwan HAN ; Seong Gon RYU
Journal of Korean Burn Society 2010;13(1):40-44
PURPOSE: The goal of this study was to develop a model of risk factors for depression in hospitalized burned patients. METHODS: Seventy-seven patients over 20 tears of age who were admitted to the Hangang Sacred Heart Hospital for burn injury, completed Structured Interview Post-traumatic stress disorder (PTSD), Beck Depression Inventory (BDI), Visual Analogue Scale (VAS) for pain and itching after 1 month from burn. A path analytic strategy was used to develop a model of risk factors for depression in burned patients. RESULTS: Two pathways to depression were developed. 1) From sleep disturbance and then to depression 2) from burn pain to PTSD and then to depression. It was revealed that sleep disturbance and PTSD had a direct effect on depression, pain had both direct and indirect effect on depression. CONCLUSION: Sleep disturbance and PTSD are associated with depression in burned patients. The identification of two developmental pathways suggests the importance of establishing preventive interventions for depression.
Burns
;
Depression
;
Heart
;
Humans
;
Pruritus
;
Risk Factors
;
Stress Disorders, Post-Traumatic
9.Young Aged Colorectal Cancer Patients: Do They Have a Bad Prognosis?.
Young Taek KIM ; Hang Rak LEE ; Oh Young LEE ; Byung Chul YOON ; Ho Soon CHOI ; Joon Soo HAHM ; You Hern AHN ; Dong Chan KIM ; Hyung Tae KIM ; Ji Yiung YOON ; Sa Il KIM ; Seung Sam BAK ; Jin Bae KIM
Korean Journal of Gastrointestinal Endoscopy 2010;40(2):84-89
BACKGROUND/AIMS: Many previously published articles have reported poor outcomes for young patients with colorectal cancer as compared to that of older patients with colorectal cancer. However, these studies have tended to be small and have various biases. This study was retrospectively designed to determine the clinical course and survival rate of young patient with colorectal cancer. METHODS: All the patients who underwent surgery for colorectal cancer at Hanyang University Hospital between 1995 and 2001 were identified. These patients were assigned to two age groups: the 45 years old and below 45 years old group (123 patients) and the group over the age of 45 (421 patients). RESULTS: The size of the tumor mass was significantly larger in the young group. There were no significant differences between the two groups for the stage at the time of diagnosis, the differentiation, the degree of lymph node involvement, the cancer location and the gross finding. The median cancer specific survival time was worse for the old group as compared with that of the young group. Age, differentiation, lymph node involvement and the Duke stage were the significant prognostic factors on univariate analysis. Age and the Duke stage were the independent prognostic factors that were significantly correlated with survival on the multivariate analysis using the Cox proportional hazard model. CONCLUSIONS: Contrary to prior reports, younger patients with colorectal cancer appear to have a better survival rate than that of older patients with colorectal cancer.
Aged
;
Bias (Epidemiology)
;
Colorectal Neoplasms
;
Humans
;
Korea
;
Lymph Nodes
;
Multivariate Analysis
;
Prognosis
;
Retrospective Studies
;
Survival Rate
10.A Case of Pseudohypoparathyroidism with Graves' Disease.
Gil Woo LEE ; Jae Hoon KIM ; Kang Won LEE ; Sa Il KIM ; Sang Mo HONG ; Dong Sun KIM ; Woong Hwan CHOI ; You Hern AHN ; Tae Wha KIM
Endocrinology and Metabolism 2010;25(3):221-225
Pseudohypoparathyroidism is a rare disease that is characterized by target cell resistance to the effects of parathyroid hormone and this disease is classified into various types depending on the phenotypic and biochemical findings. The patients with pseudohypoparathyroidism present with the clinical and biochemical features of hypoparathyroidism, but they have an increased serum level of parathyroid hormone. We experienced a case of pseudohypoparathyroidism in a 24 years old woman who had Graves' disease at that time. She had hypocalcemia, hyperphosphatemia, an elevated serum parathyroid hormone level and a normal urinary basal cyclic AMP(adenosine monophosphate) level. She also had a normal phenotypic appearance. Therefore, she was classified as suffering with pseudohypoparathyroidism type II. The clinical and laboratory abnormalities were improved by calcium supplementation in addition to vitamin D. To the best of our knowledge, this is the first case of pseudohypoparathyroidism combined with Graves' disease in Korea.
Calcium
;
Female
;
Graves Disease
;
Humans
;
Hyperphosphatemia
;
Hyperthyroidism
;
Hypocalcemia
;
Hypoparathyroidism
;
Korea
;
Parathyroid Hormone
;
Pseudohypoparathyroidism
;
Rare Diseases
;
Stress, Psychological
;
Vitamin D

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