1.Juvenile Granulosa Cell Tumor Arising in Undescended Testis: A case report.
So Ya PAIK ; Hae Youn KANG ; Jae Ho HAN ; Woo Ick YANG ; Seok Joo HAN
Korean Journal of Pathology 1999;33(5):376-379
Juvenile granulosa cell tumor is rare but one of the common congenital testicular neoplasms. Although histological features are typical of its ovarian counterpart, testicular juvenile granulosa cell tumor has a distinctly different clinical presentation. We report a case of juvenile granulosa cell tumor arising in the cryptochid testis of a 4-day-old newborn. A 6 5 5 cm sized multilocular cyst containing thick, mucinous fluid was found in the peritoneal cavity. The external surface of the cyst was smooth and the septae were relatively thin. The cyst consisted of numerous mucin-filled, cystic follicles lined by cells having vacuolated cytoplasm and round to oval dark nuclei without grooves. Cells resembling granulosa cells of an ovarian follicle were also observed in the intervening stroma forming irregular solid nests.
Cryptorchidism*
;
Cytoplasm
;
Female
;
Granulosa Cell Tumor*
;
Granulosa Cells*
;
Humans
;
Infant, Newborn
;
Male
;
Mucins
;
Ovarian Follicle
;
Peritoneal Cavity
;
Testicular Neoplasms
;
Testis
2.One Case of Leptospirosis.
Sang Joo HAN ; Jung Hyeun PARK ; Kyung Ja LEE ; Woo Kap CHUNG
Journal of the Korean Pediatric Society 1990;33(1):107-110
No abstract available.
Leptospirosis*
3.Vestibuloneuritis Developed Concurrently in Ipsilateral Site with Herpes-Zoster Oticus Syndrome .
Gyu Cheol HAN ; Ju Hyoung LEE ; Joo Hyun WOO ; Jung Kook YOO ; Sun Hwa LIM
Journal of the Korean Balance Society 2004;3(1):187-191
BACKGROUND:Acute vestibular neuronitis is the disease of which the etiology and pathophysiology are largely unknown . But the viral infection and ischemia of the labyrinth and the vestibular nerve are considered as general etiology. This study was performed to support the viral infection rather than the ischemic theory. MATERIALS & METHODS:We studied seventy years old female patient who showed painful vesicles on left auricle and vertigo with spontaneous nystagmus to the right side. We performed physical examination, serologic test, ENG test, pure tone audiogram, brain magnetic resonance imaging and polymerase chain reaction. RESULTS:We found small vesicles and vascular injection in left EAC, herpes zoster IgG positive, spontaneous right beating in electronystagmograpy, 54% left canal paresis in Caloric test , decreasing left side Tc in velocity step rotatory test, decresed gain, deviation to left in symmetry and phase lead in sinusoidal harmonic acceleration test, normal range hearing in pure tone audiogram, microangiopathy on cortex in brain MRI and negative PCR. CONCLUSION:This case supports viral infection etiology rather than ischemia in vestibular neuritis. But more studies to find the etiology of vestibular neuronitis are required.
Acceleration
;
Brain
;
Caloric Tests
;
Ear, Inner
;
Female
;
Hearing
;
Herpes Zoster
;
Herpes Zoster Oticus
;
Humans
;
Immunoglobulin G
;
Ischemia
;
Magnetic Resonance Imaging
;
Paresis
;
Physical Examination
;
Polymerase Chain Reaction
;
Reference Values
;
Serologic Tests
;
Vertigo
;
Vestibular Nerve
;
Vestibular Neuronitis
4.A Case of Centrifugal Lipodystrophy with Apoptotic Process in the Fatty Tissue.
Han Suk CHO ; Eun Joo PARK ; Chul Woo KIM ; Kwang Ho KIM ; Kwang Joong KIM
Annals of Dermatology 2005;17(2):92-94
No abstract available.
Adipose Tissue*
;
Apoptosis
;
Lipodystrophy*
6.Clinical Analysis of the infection on Open Wound in Traumatic Patients
Ik Dong KIM ; Soo Young LEE ; Kwaeng Woo KWON ; Joo Chul IHIN ; Han Gye RO
The Journal of the Korean Orthopaedic Association 1978;13(1):45-50
One hundred and fifty two open wounds of extremities including open fractures were treated at the Kyoungpook Nstional Univ. Hospital from March 1977 to August 1977. Of 152 open wounds there were 32 cases (21.5%) of wound infection even though the initial wound culture revealed bacterial growth in 44 cases(28.9%). However, there were only 10 cases of infection among the cases with positive bacterial growth in the original culture and the same organisms were found in the 6 cases between the initial wound culture and post infection culture. Sensitivity studies of the organisms, the Cephalosqorines appeared to be most effective as a prophylactic antibiotics. It was sensitive to all gram positive organisms and majority of gram negative organisms including Escherichia coli. In bacterial culture and sensitivity studies of the 82 open fracture wounds 18 of them showed gram positive and gramnegative bacteria. The prominant organism were Staphylococcus, Escherichia coli, Streptococcus and Pseudomonas. The infection rate was lower in the cases whar the wound was managed within six hours from the time of injury than after six hours.
Anti-Bacterial Agents
;
Bacteria
;
Escherichia coli
;
Extremities
;
Fractures, Open
;
Humans
;
Pseudomonas
;
Staphylococcus
;
Streptococcus
;
Wound Infection
;
Wounds and Injuries
7.Clinical Study on Ipsilateral Fracture of The Femur and Tibia
Ik Dong KIM ; Soo Young LEE ; Joo Chul IHIN ; Kwaeng Woo KWON ; Chun Soo HAN
The Journal of the Korean Orthopaedic Association 1981;16(1):198-204
Twenty-six cases of fracture of the femur and tibia on the same leg in twenty-five patients were treated at the Dept. of Orthopedic Surgery, Kyungpook National University Hospital during the period of 1973 to 1979. Twenty-two patients were sustained by the motor vehicle accident. Open fractures of the femur and tibia were ten cases, and closed femur fracture and open tibia fracture were twelve cases. Concomitant Injuries were brain Injury in eight patients and hemorrhagic shock In seven patients. Eight patients were treated by internal fixation (Kuntschernall or Compression plate) on femur and by conservative treatment on tibia. Conservative treatment was done in eleven patients on both femur and tibia fracture. Five patients were amputated. Average healing time of fracture was: twenty-two weeks in femur and twenty-seven weeks in tibia. Functional end results were assessed and rated with satisfactory results In six patients and fair and poor in elght patients respectively.
Brain Injuries
;
Clinical Study
;
Femur
;
Fractures, Open
;
Gyeongsangbuk-do
;
Humans
;
Leg
;
Motor Vehicles
;
Orthopedics
;
Shock, Hemorrhagic
;
Tibia
8.A Case of glomor on the Thumb
Ik Dong KIM ; Soo Young LEE ; Joo Chul IHIN ; Kwaeng Woo KWON ; Chun Soo HAN
The Journal of the Korean Orthopaedic Association 1981;16(3):708-711
Authors have treated a case of glomus tumor which was occurred in the tip of the right thumb, 34 years old female. The patient has complained of pain, tenderness, and cold sensitivity on the lateral side of the tip of the right thumb for 10 years. Reddish purple discolorarion was noticed under the nail bed. On X-ray, erosion of the lateral cortex of the distal phalanx and increased soft tissue density around the erosion was noted. Grossly, the tumor was purple in color, more deeply colored than the surrounding tissue and tumor tissue will shell out of the surrounding bone and soft tissue. Glomus tumor was confirmed by the excisional biopsy.
Biopsy
;
Female
;
Glomus Tumor
;
Humans
;
Thumb
9.Nootkatol prevents ultraviolet radiation-induced photoaging via ORAI1 and TRPV1 inhibition in melanocytes and keratinocytes
Joo Han WOO ; Da Yeong NAM ; Hyun Jong KIM ; Phan Thi Lam HONG ; Woo Kyung KIM ; Joo Hyun NAM
The Korean Journal of Physiology and Pharmacology 2021;25(1):87-94
Skin photoaging occurs due to chronic exposure to solar ultraviolet radiation (UV), the main factor contributing to extrinsic skin aging. Clinical signs of photoaging include the formation of deep, coarse skin wrinkles and hyperpigmentation.Although melanogenesis and skin wrinkling occur in different skin cells and have different underlying mechanisms, their initiation involves intracellular calcium signaling via calcium ion channels. The ORAI1 channel initiates melanogenesis in melanocytes, and the TRPV1 channel initiates MMP-1 production in keratinocytes in response to UV stimulation. We aimed to develop a drug that may simultaneously inhibit ORAI1 and TRPV1 activity to help prevent photoaging. We synthesized nootkatol, a chemical derivative of valencene. TRPV1 and ORAI1 activities were measured using the whole-cell patch-clamp technique. Intracellular calcium concentration [Ca2+ ] i was measured using calcium-sensitive fluorescent dye (Fura-2 AM). UV-induced melanin formation and MMP-1 production were quantified in B16F10 melanoma cells and HaCaT cells, respectively. Our results indicate that nootkatol (90 μM) reduced TRPV1 current by 94% ± 2% at –60 mV and ORAI1 current by 97% ± 1% at –120 mV. Intracellular calcium signaling was significantly inhibited by nootkatol in response to ORAI1 activation in human primary melanocytes (51.6% ± 0.98% at 100 μM). Additionally, UV-induced melanin synthesis was reduced by 76.38% ± 5.90% in B16F10 melanoma cells, and UV-induced MMP-1 production was reduced by 59.33% ± 1.49% in HaCaT cells. In conclusion, nootkatol inhibits both TRPV1 and ORAI1 to prevent photoaging, and targeting ion channels may be a promising strategy for preventing photoaging.
10.Nootkatol prevents ultraviolet radiation-induced photoaging via ORAI1 and TRPV1 inhibition in melanocytes and keratinocytes
Joo Han WOO ; Da Yeong NAM ; Hyun Jong KIM ; Phan Thi Lam HONG ; Woo Kyung KIM ; Joo Hyun NAM
The Korean Journal of Physiology and Pharmacology 2021;25(1):87-94
Skin photoaging occurs due to chronic exposure to solar ultraviolet radiation (UV), the main factor contributing to extrinsic skin aging. Clinical signs of photoaging include the formation of deep, coarse skin wrinkles and hyperpigmentation.Although melanogenesis and skin wrinkling occur in different skin cells and have different underlying mechanisms, their initiation involves intracellular calcium signaling via calcium ion channels. The ORAI1 channel initiates melanogenesis in melanocytes, and the TRPV1 channel initiates MMP-1 production in keratinocytes in response to UV stimulation. We aimed to develop a drug that may simultaneously inhibit ORAI1 and TRPV1 activity to help prevent photoaging. We synthesized nootkatol, a chemical derivative of valencene. TRPV1 and ORAI1 activities were measured using the whole-cell patch-clamp technique. Intracellular calcium concentration [Ca2+ ] i was measured using calcium-sensitive fluorescent dye (Fura-2 AM). UV-induced melanin formation and MMP-1 production were quantified in B16F10 melanoma cells and HaCaT cells, respectively. Our results indicate that nootkatol (90 μM) reduced TRPV1 current by 94% ± 2% at –60 mV and ORAI1 current by 97% ± 1% at –120 mV. Intracellular calcium signaling was significantly inhibited by nootkatol in response to ORAI1 activation in human primary melanocytes (51.6% ± 0.98% at 100 μM). Additionally, UV-induced melanin synthesis was reduced by 76.38% ± 5.90% in B16F10 melanoma cells, and UV-induced MMP-1 production was reduced by 59.33% ± 1.49% in HaCaT cells. In conclusion, nootkatol inhibits both TRPV1 and ORAI1 to prevent photoaging, and targeting ion channels may be a promising strategy for preventing photoaging.