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1.
Korean Journal of Ophthalmology ; : 216-223, 2023.
Artigo em Inglês | WPRIM | ID: wpr-977268

RESUMO

Purpose@#To evaluate the effect of intraoperative mitomycin C (MMC) on the surgical outcomes of ciliary sulcus (CS) Ahmed glaucoma valve (AGV) tube placement. @*Methods@#A retrospective review of medical records of 54 consecutive patients who underwent AGV implantation with tube placed in CS was performed. Consecutive cases operated without the use of intraoperative MMC from 2017 to 2019 were compared with consecutive cases operated with MMC from 2019 to 2021. Surgical failure was defined as intraocular pressure (IOP) exceeding 21 mmHg in two consecutive visits after postoperative 3 months or ≤30% IOP reduction, IOP ≤5 mmHg in two consecutive visits, or loss of light perception. Kaplan-Meier survival analysis and log-rank test were performed to compare the surgical failure rates. @*Results@#A total of 54 eyes of 54 patients were investigated. Mean follow-up period after AGV implantation was 1.4 ± 0.8 years. The MMC group showed significantly lower IOP during the 1st postoperative month (20.5 ± 8.6 mmHg vs. 15.8 ± 6.4 mmHg, p = 0.027), but the difference did not persist 6 months after the surgery (p = 0.805). The mean number of postoperative antiglaucoma medications was significantly lower in the MMC group in the 1st postoperative month (p = 0.047) but no difference was found at 6 months. No statistical difference was noted in the rates of postoperative complications. Kaplan-Meier survival analysis showed comparable survival rates between MMC group and no MMC group (p = 0.356). @*Conclusions@#The intraoperative use of MMC significantly lowered IOP in the 1st postoperative month but did not increase 6 months success rates in patients receiving AGV tube placement in CS.

2.
Journal of the Korean Balance Society ; : 29-33, 2017.
Artigo em Coreano | WPRIM | ID: wpr-761230

RESUMO

Listeria monocytogenes (L. monocytogenes) is a rare, but important bacterial pathogen causing central nervous system infection in the elderly, pregnant women, and immunocompromised patients. A 60-year-old man with diabetes presented with headache, fever and rapidly progressive ophthalmoplegia. Based on serological and MRI studies, he was diagnosed with rhombencephalitis due to L. monocytogenes. The patient recovered without complications with urgent initiation of empirical antibiotics and the pathogen-specific antibiotic treatment. L. monocytogenes should be considered as a cause of rhombencephalitis presenting as external ophthalmoplegia.


Assuntos
Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Antibacterianos , Tronco Encefálico , Infecções do Sistema Nervoso Central , Cerebelo , Encefalite , Febre , Cefaleia , Hospedeiro Imunocomprometido , Listeria monocytogenes , Listeria , Imageamento por Ressonância Magnética , Oftalmoplegia , Gestantes
3.
Journal of the Korean Neurological Association ; : 400-402, 2016.
Artigo em Coreano | WPRIM | ID: wpr-179051

RESUMO

No abstract available.


Assuntos
Criança , Humanos , Papiledema , Pseudotumor Cerebral , Stents
4.
The Korean Journal of Critical Care Medicine ; : 6-12, 2011.
Artigo em Inglês | WPRIM | ID: wpr-644954

RESUMO

BACKGROUND: Atrial fibrillation (AF) has been linked to an increased risk for in-hospital and long-term mortality rates in patients with acute myocardial infarction (AMI). Obesity and metabolic syndrome (MS) are known to play an important role in cardiovascular morbidity and mortality. However, it is uncertain whether obesity and MS increase the risk of AF in patients with AMI. Therefore, we investigated independent risk factors for the occurrence of new-onset AF in patients with AMI who received optimal percutaneous coronary intervention (PCI). METHODS: We prospectively analyzed the association between MS and the incidence of cardiac arrhythmia in 146 patients with AMI who underwent PCI. Twenty-four-hour Holter monitoring was performed 3 days after AMI. We divided the patients into two different groups based on the development of AF and analysed their obesity based on body mass index (BMI) (kg/m2) and evaluated the existence of MS, as well as visceral obesity with fat computed tomography. RESULTS: Seventy-five patients (51.4%) were obese (BMI > or = 25) and 64 (44%) had MS. AF occurred in 33 (22.6%) patients. Age, MS, and visceral obesity were significantly associated with AF (p = 0.001, p = 0.003, and p = 0.03, respectively). There was no difference between obese and non-obese patients in the incidence of AF and VT. Multivariate analysis revealed that age and MS were independent risk factors of post-AMI AF. CONCLUSIONS: MS is an important and modifiable risk factor for new-onset AF especially in patients with AMI who underwent PCI.


Assuntos
Humanos , Arritmias Cardíacas , Fibrilação Atrial , Índice de Massa Corporal , Eletrocardiografia Ambulatorial , Incidência , Análise Multivariada , Infarto do Miocárdio , Obesidade , Obesidade Abdominal , Intervenção Coronária Percutânea , Estudos Prospectivos , Fatores de Risco
5.
Journal of Cardiovascular Ultrasound ; : 77-83, 2010.
Artigo em Inglês | WPRIM | ID: wpr-207091

RESUMO

BACKGROUND: The aim of this study was to evaluate the mid-term changes in cardiac function by transthoracic echocardiogram (TTE) in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) according to valsartan dose. METHODS: Between April 2006 and February 2009, 78 subjects (mean age: 57 +/- 12 years, M : F = 74 : 4) with STEMI who underwent primary PCI were enrolled. Fifty three patients received low dose valsartan (40 or 80 mg) and 25 patients received high dose valsartan (160 or 320 mg). Follow-up TTE was done approximately 2 years later. We evaluated the changes in left ventricular (LV) function between initial and final TTE after primary PCI and compared the changes between low and high dose valsartan group. RESULTS: The mean follow-up TTE duration was 24 +/- 8 months. Deceleration time (188.6 +/- 56.3 msec vs. 221.5 +/- 71.3 msec, p = 0.01), E/e' (12.24 +/- 5.2 vs. 10.1 +/- 4.9, p = 0.002), ejection fraction (52.7 +/- 8% vs. 55.2 +/- 8.4%, p < 0.01), and wall motion score index (1.45 +/- 0.30 vs. 1.33 +/- 0.32, p < 0.01) showed significant changes during the follow-up period. Wall motion improvement in injured myocardial segments was more frequently observed in the high-dose valsartan group compared to the low-dose group [18/25 (72%) vs. 24/53 (43.7%), p = 0.03]. There was no significant difference in the changes in cardiac dimensions and function between the low and high dose valsartan group. CONCLUSION: In patients with STEMI who undergoing primary PCI, high-dose valsartan treatment may be more helpful than low-dose in improving wall motion in the injured myocardium.


Assuntos
Humanos , Angioplastia Coronária com Balão , Bloqueadores do Receptor Tipo 1 de Angiotensina II , Desaceleração , Ecocardiografia , Seguimentos , Infarto do Miocárdio , Miocárdio , Intervenção Coronária Percutânea , Tetrazóis , Valina , Valsartana
6.
Korean Circulation Journal ; : 308-313, 2010.
Artigo em Inglês | WPRIM | ID: wpr-196632

RESUMO

BACKGROUND AND OBJECTIVES: As shown in previous studies, pentraxin 3 (PTX3) can be a useful inflammatory marker for metabolic syndrome and central obesity. Serum PTX3 levels are also an independent factor associated with visceral fat area. The aim of this study was to assess the role of PTX3 as an inflammatory maker in patients with central obesity undergoing primary percutaneous coronary intervention (PCI) following an ST-segment elevation myocardial infarction (STEMI). SUBJECTS AND METHODS: From December 2007 to June 2008, 40 subjects (mean age: 61+/-11 years, M : F=34 : 6) with STEMI who underwent primary PCI were enrolled. We determined waist circumference, waist/hip ratio, body mass index (BMI), and visceral and total fat area via fat computed tomography (FAT-CT), and compared them with serum PTX3 concentrations. RESULTS: The serum PTX3 concentration was closely related to FAT-CT-estimated visceral fat area (r=0.41, p<0.01) and total fat area (r=0.38, p=0.01), respectively. The serum PTX3 concentration was not related to waist circumference (r=0.27, p=0.20), waist circumference/hip ratio (r=0.25, p=0.16), BMI (r=0.04, p=0.80) and lipid profiles, respectively. Among the parameters determining metabolic syndrome, an increasing visceral fat area had the strongest association with PTX3 concentrations. CONCLUSION: In patients with STEMI, PTX3 is associated with central obesity and it is significantly and independently correlated with visceral fat area. FAT-CT-estimated visceral fat area is the most reliable factor associated with serum PTX3 levels in patients with STEMI and central obesity.


Assuntos
Humanos , Índice de Massa Corporal , Proteína C-Reativa , Gordura Intra-Abdominal , Infarto do Miocárdio , Obesidade Abdominal , Intervenção Coronária Percutânea , Componente Amiloide P Sérico , Circunferência da Cintura
7.
Journal of the Korean Association of Oral and Maxillofacial Surgeons ; : 23-27, 2010.
Artigo em Coreano | WPRIM | ID: wpr-57598

RESUMO

The purpose of this study was to evaluate the reliability of 6-axis model surgery simulator (6AMSS) for orthognathic surgery. A rectangular parallelepiped plastic block was assembled to model-mounting plate of 6AMSS. Left-right (X), anterior-posterior (Y), up-down (Z) translation and pitching (empty set X), rolling (empty set Y) and yawing (empty set Z) rotation was planned and performed using 6AMSS. The actual translation and rotation were measured with dial gauge and precisional protractor, respectively. Comparison between the planned and actual movements of plastic block for each variable were made using paired t- test. Statistical analysis for X, Y, Z, empty set X, empty set Y and empty set Z movement have shown no significant differences between planned and actual movement (P > 0.05). This indicate that model surgery performed with the aid of the 6AMSS is accurate in 3D translation and rotation. The 6AMSS is practically useful for accurate fabrication of surgical splint for orthognathic surgery.


Assuntos
Cirurgia Ortognática , Plásticos , Contenções
8.
Korean Circulation Journal ; : 370-376, 2010.
Artigo em Inglês | WPRIM | ID: wpr-9278

RESUMO

BACKGROUND AND OBJECTIVES: Pentraxin 3 (PTX3) was shown to be elevated in the acute phase of acute myocardial infarction (AMI) and to have prognostic significance in AMI patients. The aim of this study was to estimate whether the value of PTX3 could be used as a prognostic biomarker, with the global registry of acute coronary events (GRACE) risk assessment tool, in patients with acute coronary syndrome (ACS). SUBJECTS AND METHODS: Between July 2007 and June 2008, 137 patient subjects (mean age : 61+/-12 years, M : F=108 : 29) with ACS who underwent coronary intervention, but did not have a prior percutaneous coronary intervention (PCI) and/or follow-up coronary angiogram, were enrolled. We estimated the all-cause mortality or death/MI, in-hospital and to 6 months, using the GRACE risk scores and compared these estimates with serum PTX3 concentrations. RESULTS: The serum PTX3 concentration showed a significant increase in ST segment elevation myocardial infarction (STEMI) greater than the unstable angina pectoris (UAP) group (2.4+/-2.1 ng/mL vs. 1.3+/-0.9 ng/mL, p= 0.017, respectively), but did not show a significant difference between non-ST segment elevation myocardial infarction (NSTEMI) and the UAP group (1.9+/-1.4 ng/mL vs. 1.3+/-0.9 ng/mL, p=0.083, respectively). The serum PTX3 concentration was closely related to death/MI in-hospital (r=0.242, p=0.015) and death/MI to 6 months (r=0.224, p=0.023), respectively. The serum PTX3 concentration was not related to all-cause mortality in-hospital (r=0.112, p=0.269) and to 6 months (r=0.132, p=0.191), respectively. Among the parameters determining the GRACE risk scores, the degree of Killip class in congestive heart failure (CHF) was independently associated with the supramedian PTX3 concentration [odds ratio: 2.229 (95% confidence interval: 1.038-4.787), p=0.040]. CONCLUSION: The serum PTX3 level provides important information for the risk stratification of CHF among the parameters determining the GRACE risk scores in subjects with ACS.


Assuntos
Humanos , Síndrome Coronariana Aguda , Angina Instável , Proteína C-Reativa , Estrogênios Conjugados (USP) , Seguimentos , Insuficiência Cardíaca , Infarto do Miocárdio , Intervenção Coronária Percutânea , Medição de Risco , Componente Amiloide P Sérico
9.
Korean Circulation Journal ; : 530-535, 2010.
Artigo em Inglês | WPRIM | ID: wpr-23758

RESUMO

Percutaneous coronary intervention with stenting is widely used for ischemic heart disease. Because stent loss, which occurs rarely during the procedure, might have dire consequences, such as bleeding, stent embolism, acute myocardial infarction, emergency coronary artery bypass graft, and death, appropriate treatment is needed as soon as stent loss occurs. We report three cases of stent loss which were successfully treated with three different non-surgical methods.


Assuntos
Ponte de Artéria Coronária , Embolia , Emergências , Hemorragia , Infarto do Miocárdio , Isquemia Miocárdica , Intervenção Coronária Percutânea , Stents , Transplantes
10.
Journal of the Korean Association of Pediatric Surgeons ; : 12-20, 2008.
Artigo em Coreano | WPRIM | ID: wpr-180188

RESUMO

From 1979 to 2006, fifty eight patients with esophageal atresia were treated by one pediatric surgeon at Hanyang University Hospital. We analyzed the clinical findings and outcome of these 58 patients. There were 30 males and 28 females. Their mean birth weight was 2,960 +/- 400 g (1,170~4,020 g). The most common type of anomaly was Gross type C (49 patients; 84.5 %). There was no type B. Fifty-two patients underwent definitive surgery. Postoperative complications were as follows: anastomotic leakage in 17 patients (32.7 %), anastomotic site stricture in 15 (28.8 %), gastroesophageal reflux in 10 (19.2 %) and recurrent TEF in 1 (1.9 %). A total of 152 associated anomalies were detected from 48 patients (82.2 %). The cardiovascular system was the most commonly affected (30 patients with 46 anomalies). The VACTERL association was present in 14 patients (24.1 %). Operative mortality was 17.3 % including self-discharge patients after operation.


Assuntos
Feminino , Humanos , Masculino , Canal Anal , Fístula Anastomótica , Peso ao Nascer , Sistema Cardiovascular , Constrição Patológica , Atresia Esofágica , Esôfago , Refluxo Gastroesofágico , Cardiopatias Congênitas , Rim , Deformidades Congênitas dos Membros , Complicações Pós-Operatórias , Coluna Vertebral , Traqueia
11.
Journal of the Korean Society of Plastic and Reconstructive Surgeons ; : 255-258, 2005.
Artigo em Coreano | WPRIM | ID: wpr-128508

RESUMO

The nasopalatine duct cyst, known as the incisive canal cyst, is the most common nonodontogenic cyst in the maxillofacial area. It is believed to arise from epithelial remnants of the embryonic nasopalatine duct. Nasopalatine duct cysts are most often detected in patients between forties and sixties. The trauma, bacterial infection, or mucous retention has been suggested as etiological factors. The cysts often present as asymptomatic swelling of the palate but can present with painful swelling or drainage. Radiologic findings include a well demarcated cystic structure in a round, ovoid or heart shape presenting with a well-defined bone defect in the anterior midline of the palate between and posterior to the central incisors. Most of them are less than 2cm in size. On MRI, the cyst is identified as a high-intensity, well-marginated lesion, which indicates that it contains proteinaceous material. We experienced a case of a 61-year-old female patient who had a 2.3*2.6*1.7cm sized nasopalatine duct cyst. The bony defect after a surgical extirpation was restored with hydroxyapatite. So we report a good results with some reviews of the literatures.


Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Infecções Bacterianas , Drenagem , Durapatita , Coração , Incisivo , Imageamento por Ressonância Magnética , Cistos não Odontogênicos , Palato
12.
Korean Journal of Dermatology ; : 407-409, 2005.
Artigo em Coreano | WPRIM | ID: wpr-87649

RESUMO

Acrokeratosis verruciformis of Hopf is a localized disorder of keratinization affecting the distal extremities. It develops during infancy or early childhood with no sexual predilection. The disease seems to be inherited in an autosomal dominant fashion. We describe a 55-year-old male with multiple, flat-topped papules on the left dorsum of the hand. The histologic findings showed marked hyperkeratosis, acanthosis, papillomatosis of the epidermis and circumscribed elevation of the epidermis which characteristically resembled "church spires". This case is unusual in that the patient had late onset of the lesions and no family history of the condition.


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Doença de Darier , Epiderme , Extremidades , Mãos , Papiloma
13.
Korean Journal of Medicine ; : 441-447, 2005.
Artigo em Coreano | WPRIM | ID: wpr-156964

RESUMO

Mesenteric venous thrombosis is rare but can cause ischemia or infarction of small bowel. Mesenteric venous thrombosis is classified as either primary or secondary. Despite considerable advances in medical diagnosis and treatment, the diagnosis is often delayed and prognosis is still poor. We report three cases of mesenteric venous thrombosis treated by different modalities each other. The first case was superior mesenteric venous thrombosis secondary to acute acalculous cholecystitis and treated with anticoagulation. The second case was primary mesenteric venous thrombosis and treated by anticoagulation combined with percutaneous transhepatic thrombolysis. The third case was also primary mesenteric venous thrombosis, but, needed surgery with anticoagulation.


Assuntos
Colecistite Acalculosa , Diagnóstico , Infarto , Isquemia , Prognóstico , Trombose Venosa
14.
Korean Journal of Dermatology ; : 71-73, 2005.
Artigo em Coreano | WPRIM | ID: wpr-64507

RESUMO

Venous lakes are small, dark blue, slightly raised, soft lesions occurring on the exposed skin of an elderly person. The face, ears, lips, neck, forearms and backs of hands are common sites. Histopathologic findings show either one greatly dilated space or several interconnected dilated spaces filled with erythrocytes and lined by a single layer of flattened endothelial cells in the upper dermis. We report two cases of venous lake treated with sodium tetradecyl sulfate (STS) which is one of sclerosing agents. The lesions was almost disappeared and no side effects were observed. The two cases showed no recurrence.


Assuntos
Idoso , Humanos , Derme , Orelha , Células Endoteliais , Eritrócitos , Antebraço , Mãos , Lagos , Lábio , Pescoço , Recidiva , Soluções Esclerosantes , Pele , Tetradecilsulfato de Sódio
15.
Journal of the Korean Society of Plastic and Reconstructive Surgeons ; : 12-18, 2005.
Artigo em Coreano | WPRIM | ID: wpr-103393

RESUMO

The Transverse rectus abdominis musculocutaneous (TRAM) flap has been commonly used for autologous breast reconstruction. Despite these clinical usefulness, the TRAM flap is prone to partial flap or fat necrosis in especially pedicled flap. To improve flap survival, the surgical delay procedures and pharmacological treatments have been developed. In many studies for the pharmacological treatment, Lipo-PGE1 has demonstrated a marked ability to improve flap survival and it's effect has been proved similar to surgical delay procedure. The purpose of this study is to determine the most effective route of Lipo-PGE1 administration as a pharmacological treatment in TRAM flap of the rat. Fifty male Sprague-Dawley rats weighing 300-350 gm were divided into five groups, One week before flap elevation, Lipo- PGE1(2 microgram/kg) was injected three times in a week and than the left inferior epigastric vessel based TRAM flap (5.0x3.0 cm) elevated; group I: no procedure before flap elevation; group II: intraperitoneal injection; group III: intravenous injection; group IV: subcutaneous injection; group V: topical application. A flap was assessed at postoperative 7 days by comparison of flap survival rate, vessel counts(H-E stain), and vascular endothelial growth factor(VEGF) protein expressed by Western blot. The results demonstrated that the mean percentages of the flap survival area in group III were significantly higher than that of any other group(p<0.05). The vessel counts of all experimental groups were statistically higher than that of control group(p<0.05). Only in group III, the VEGF protein expression was increased significantly than control group and there are no difference in other experimental groups. In conclusion, the intravenous administration of the Lipo-PGE1 is the most effective on flap survival, and the VEGF induced by Lipo-PGE1 has some positive effects on new vessel formation and flap survival.


Assuntos
Animais , Feminino , Humanos , Masculino , Ratos , Administração Intravenosa , Alprostadil , Western Blotting , Necrose Gordurosa , Injeções Intraperitoneais , Injeções Intravenosas , Injeções Subcutâneas , Mamoplastia , Retalho Miocutâneo , Ratos Sprague-Dawley , Reto do Abdome , Retalhos Cirúrgicos , Taxa de Sobrevida , Fator A de Crescimento do Endotélio Vascular
16.
Korean Journal of Dermatology ; : 1085-1087, 2004.
Artigo em Coreano | WPRIM | ID: wpr-199362

RESUMO

Osteoma cutis is an infrequent primary ossification arising in the dermis or subcutaneous fat tissue without preceding trauma, skin disease or evidence of Albright's hereditary osteodystrophy. We report a case of osteoma cutis in a 12-year-old female, who had had a 1x1cm sized, asymptomatic, round, skin-coloured, hard nodule on her left forearm for 7 years. The history and physical examinations failed to reveal any sign of secondary cutaneous ossification, due to inflammation, scars and dysembryoplastia. Histologically, the lesion showed bony structures with osteocytes and osteoblasts in the subcutaneous fat tissue.


Assuntos
Criança , Feminino , Humanos , Cicatriz , Derme , Antebraço , Inflamação , Osteoblastos , Osteócitos , Osteoma , Exame Físico , Dermatopatias , Gordura Subcutânea
17.
Korean Journal of Anesthesiology ; : 228-232, 2004.
Artigo em Coreano | WPRIM | ID: wpr-187329

RESUMO

BACKGROUND: Two results have been conflict regarding the pH of gastric contents in obese and lean surgical patients. Obese patients have been considered to have lower pH of gastric contents than lean surgical patients since the study by Vaughan, whereas Harter reported no significant difference in the pH's of obese and lean surgical patients. The author wanted to investigate whether gastric content pH differs or not between obese and lean surgical patients aged from 20 to 60 years. METHODS: Forty patients scheduled for elective abdominal hysterectomy under general endotracheal anesthesia were studied. Group I (n = 20) was composed of lean patients whose body mass indices (BMIs) were between 20 and 25, whereas Group II (n = 20) was composed of obese patients whose BMIs were above 30. Every patient was fasted between 8 and 14 hours preoperatively. Within 10 minutes of endotracheal intubation, gastric contents were withdrawn with a 20 cc syringe connected to a 16F nasogastric tube placed in the stomach. pH and the incidences of pH <2.5, and pH <1.8 were compared. RESULTS: No significant difference in pH (P = 0.199) or in the incidences of pH less than 2.5 (P = 0.23) or 1.8 (P = 0.52) were observed between obese and lean patients. CONCLUSIONS: Obese and lean patients have similar fasting gastric pH's, as long as the obesity is not too severe (BMI under 40).


Assuntos
Humanos , Anestesia , Jejum , Concentração de Íons de Hidrogênio , Histerectomia , Incidência , Intubação Intratraqueal , Obesidade , Estômago , Seringas
18.
Korean Journal of Dermatology ; : 599-603, 2004.
Artigo em Coreano | WPRIM | ID: wpr-193355

RESUMO

Nevus sebaceus is a hamartoma that combines epidermal, follicular, sebaceous, and apocrine gland abnormalities. It mostly occurs on the scalp or face and shows characteristically well demarcated yellowish patches or plaque. Clinically several types of cutaneous neoplasms including syringocystadenoma papilliferum, basal cell carcinoma, nodular hidradenoma, syringoma, sebaceous epithelioma, trichilemmoma and apocrine neoplasms have been associated. We herein report a case of nevus sebaceus associated with tubular apocrine adenoma and apocrine poroma of a 11-year-old girl.


Assuntos
Criança , Feminino , Humanos , Acrospiroma , Adenoma , Glândulas Apócrinas , Carcinoma , Carcinoma Basocelular , Hamartoma , Nevo , Poroma , Couro Cabeludo , Siringoma
19.
Korean Journal of Nephrology ; : 385-395, 2004.
Artigo em Coreano | WPRIM | ID: wpr-27408

RESUMO

BACKGROUND: The Angiopoietin-1 (Ang1), Angiopoietin-2 (Ang2) and Tie2 have essential role in angiogenesis in development. Ang1 and Ang2 are ligands which binds to their receptor, Tie2. METHODS: Expression of these proteins was sought during mouse kidney maturation from embryonic day 16 (E16) to 28 days postnatal (P28). RESULTS: Using RNase protection assay and Western blot, these three molecules were expressed throughout the experimental period with peak levels at P28 (Ang1), P14 (Ang2) and P7 (Tie2). By immunohistochemical analysis, Ang1 protein was found to localize to condensing renal mesenchymal cells, and tubules. Ang2 proteins were detected in differentiating outer medullary tubules and the vasa recta bundle area. Tie2 protein was detected in a portion of glomerular tufts and cortical interstitium, and medulla including vessels in the vasa recta. CONCLUSIONS: These data suggest that Ang1, Ang2 and Tie2 proteins are expressed in renal development.


Assuntos
Animais , Camundongos , Angiopoietina-1 , Angiopoietina-2 , Western Blotting , Rim , Ligantes , Receptor TIE-2 , Ribonucleases
20.
Korean Journal of Dermatology ; : 452-455, 2004.
Artigo em Coreano | WPRIM | ID: wpr-99987

RESUMO

We report a case of vitiligo developed on the sites of DNCB application for the treatment of alopecia areata in a 53-year-old woman. Histopathologic studies of the depigmented patches showed absence of melanin pigmentation at the basal layer of the epidermis and a negative reaction for the Fontana-Masson stain. The current theories explaining vitiligo development after topical sensitizer application are that topical sensitizers induce the vitiligo by a direct cytotoxic effect on the melanocytes, or by unmasking latent vitiligo as a result of the Koebner phenomenon due to contact dermatitis, but the exact mechanism is still unclear.


Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Alopecia em Áreas , Alopecia , Dermatite de Contato , Dinitroclorobenzeno , Epiderme , Melaninas , Melanócitos , Pigmentação , Vitiligo
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