No abstract available.
Behcet Syndrome* ; Renal Insufficiency*

Background: The anti-oxidative, anti-inflammatory, and anti-apoptotic effects of erythropoietin may provide neuroprotective effects. Erythropoietin also modulates autophagy signaling that may play a role in anesthesia-induced neurotoxicity (AIN). Herein, we investigated whether AIN can be attenuated by the neuroprotective effect of erythropoietin in the Caenorhabditis elegans (C. elegans). Methods: Synchronized worms were divided into the control, Iso, EPO, and EPO-Iso groups. The chemotaxis index (CI) was evaluated when they reached the young adult stage. The lgg-1::GFP-positive puncta per seam cell were used to determine the autophagic events. The erythropoietin-mediated pathway of autophagy was determined by measuring the genetic expression level of let-363, bec-1, atg-7, atg-5, and lgg-3. Results: Increased lgg-1::GFP puncta were observed in the Iso, EPO, and EPO-Iso groups. In the Iso group, only the let-363 level decreased significantly as compared to that in the control group (P = 0.009). bec-1 (P < 0.001), atg-5 (P = 0.012), and lgg-3 (P < 0.001) were expressed significantly more in the EPO-Iso group than in the Iso groups. Repeated isoflurane exposure during development decreased the CI. Erythropoietin could restore the decreased CI by isoflurane significantly in the EPO-Iso group. Conclusions Erythropoietin showed neuroprotective effects against AIN and modulated the autophagic pathway in C. elegans. This experimental evidence of erythropoietin-related neuroprotection against AIN may be correlated with the induced autophagic degradation process that was sufficient for handling enhanced autophagy induction in erythropoietin-treated worms.

Purpose: Currently, the DNA damage response (DDR) pathway represents a key target for new cancer drug development. Advanced biliary tract cancer (BTC) has a poor prognosis because of the lack of efficacious treatment options. Although DNA repair pathway alterations have been reported in many patients with BTC, little is known regarding the effects of DDR-targeted agents against BTC. Materials and Methods: In this study, nine BTC cell lines were exposed to the WEE1 inhibitor (AZD1775). In vitro, MTT assay, colony-forming assay, cell cycle analysis, phospho-histone H3 staining assay, Transwell migration assay, and western blot were performed. Then, to enhance the antitumor effect of AZD1775, the combination treatment of WEE1 inhibitor and ataxia telangiectasia mutated and Rad3 related (ATR) inhibitor (AZD6738) was conducted using MTT assay and comet assay. Finally, HuCCT-1 and SNU2670 xenograft models were established to confirm the anti-tumor effect of AZD1775 alone. Furthermore, the combination treatment was also evaluated in SNU2670 xenograft models. Results: AZD1775 blocked the phosphorylation of CDC2 and CDC25C in all cell lines, but significantly increased apoptosis and S phase arrest in sensitive cells. However, increased p-ATR and phosphorylated ataxia telangiectasia mutated levels were observed in less sensitive cells. In addition, in vitro and in vivo data illustrated that AZD1775 combined with AZD6738 exerted more potent anti-tumor effects than either drug alone. Although WEE1 inhibition has promising anti-tumor effects in some BTC cells, the addition of ATR inhibitors could enhance its efficacy. Conclusion Taken together, this study supports further clinical development of DDR-targeted strategies as monotherapy or combination regimens for BTC.

Trichophyton rubrum is the most common dermatophyte in the world with the highest prevalence in Korea. There are few reports about epidemiological and mycological characteristics of T. rubrum based on long-term, large-scale studies. The purpose of this study was to investigate the clinical and epidemiological characteristics of T. rubrum infections in Korea. We retrospectively investigated with patients' records about the epidemiological and mycological status of 115,846 cases with T. rubrum infection that was mycologically diagnosed at Catholic Skin Disease Clinic from 1979 to 2013. Direct microscopy in 15% KOH solution and culture was done in each case. The annual incidence of patients with T. rubrum infection had been increasing during the period; and of 131,122 patients with dermatophytosis, 115,846 patients (88.35%) had T. rubrum infection. Disease was most prevalent among patients in their twenties in the 1970s and 1980s; in their thirties in the 1990s; in their forties in the 2000s; and in their fifties in the 2010s. The sex ratio was 1.5:1. T. rubrum infection was most commonly seen in summer and was found predominantly in patients living in urban areas. Toe webs were most frequently involved, followed by toenails and groin. This epidemiologic findings provide useful information for prevention of T. rubrum infection and future dermatophytosis prospects.
Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Prevalence ; Republic of Korea/epidemiology ; Retrospective Studies ; Seasons ; Sex Factors ; Tinea/*epidemiology/microbiology/pathology ; Trichophyton/*isolation & purification ; Urban Population

BACKGROUND: Sporotrichosis is a subacute to chronic, deep fungal infection caused by Sporothrix schenckii and has a wide variety of clinical presentations. Although sporotrichosis is the most common deep fungal infection in Korea, few reports have included a long term investigation and survey of sporotrichosis. OBJECTIVE: We analyzed patients' records for 38 recent years to identify the incidence and changes in clinical findings on sporotrichosis. METHODS: We conducted a retrospective analysis of 71 patients with sporotrichosis for 38 recent years (1968~2005) by reviewing the medical records and making phone calls to patients if needed. RESULTS: The incidence of sporotrichosis is currently on a decreasing trend and incidents were more common for rural residents (43 cases, 60.6%) than urban residents (28 cases, 39.4%). The most frequent occupation of patients was 'farmer' (37 cases, 52%). Seasonally, twenty seven cases (38.0%) occurred in winter (December to February), showing higher incidence than any other season. Lympho-cutaneous type (53 cases, 74.6%) is more common than fixed cutaneous type (18 cases, 25.4%) and the most common site of the initial lesion was left upper extremity. Of 47 patients who had primary lesion on upper extremity, 39 (83%) were of the lympho-cutaneous type, and of 15 patients who had primary lesion on face, 9 (60%) were of the fixed cutaneous type. CONCLUSION: According to this study, some changes in clinical findings and prevalence of sporotrichosis over the study period were noted. Further observation and analysis are required to clarify the meaning of these changes.
Humans ; Incidence ; Korea ; Medical Records ; Occupations ; Prevalence ; Retrospective Studies ; Seasons ; Sporothrix ; Sporotrichosis ; Upper Extremity

No abstract available.

Microsporum (M.) ferrugineum has almost disappeared in Korea after three cases of tinea capitis that were reported in Jeonbuk province in 1993. It was most common cause of tinea capitis in Korea until 1970s. M. ferrugineum produces abundant chlamydospores. Another characteristic of the species is the production of distorted faviform hyphae and long, straight hyphae with thick septa that resemble segments of bamboo. We report a case of 27-year-old female with tinea corporis caused by M. ferrugineum.
Adult ; Female ; Humans ; Hyphae ; Korea ; Microsporum ; Tinea ; Tinea Capitis

No abstract available.
Arthrodermataceae* ; Epidemiology* ; Korea*

Pancreatic arteriovenous malformations (AVM) are extremely rare diseases frequently complicated by gastrointestinal hemorrhage. While surgical resection of affected lesion is preferred for the treatment of pancreatic AVM, angiographic intervention can be used as an alternative treatment, especially in surgically high-risk patients. We experienced a patient with pancreatic AVM manifested by hemobilia and biliary sepsis. Superior mesenteric and common hepatic arteriography showed pancreaticoduodenal AVM composed of nidus supplied by numerous fine feeding arteries and of draining veins encircling the common bile duct (CBD). Hemobilia was controlled by transportal coil embolization of draining veins of AVM around the CBD. Herein, we report this case with the review of literatures.
Arteriovenous Malformations/pathology/*therapy ; Duodenoscopy ; *Embolization, Therapeutic ; Hemobilia/etiology/pathology/*therapy ; Humans ; Male ; Middle Aged ; Pancreas/*blood supply ; Pancreaticoduodenectomy ; Tomography, X-Ray Computed

No abstract available.
Bacteremia* ; Humans ; Pneumonia* ; Pulmonary Disease, Chronic Obstructive* ; Streptococcus pyogenes* ; Streptococcus*