Smart-Phone Addiction, Depression/Anxiety, and Self-Esteem with Attention-Deficit Hyperactivity Disorder in Korean Children

OBJECTIVES: The current study investigated the risk of smartphone addiction among children and adolescents with or without attention-deficit hyperactivity disorder (ADHD), risk of depression, anxiety, and self-esteem using the Smartphone Addiction Scale Proneness, Kovac's Children's Depression Inventory, State-Trait Anxiety Inventory, and Rosenberg Self-Esteem Scale, commonly used in clinical medicine. METHODS: Ninety five students with ADHD who visited psychiatry outpatient clinics completed the questionnaire. At the same time, 592 middle and high school students living in a similar area regardless of ADHD diagnosis, completed the questionnaire as control subjects. RESULTS: Overall, 40.0% of 95 ADHD and 12.8% of 592 control subjects were classified as the smartphone addiction proneness group, 26.3% of the ADHD subjects and 8.3% of the control group were classified as the depression group, and 32.6% of the ADHD subjects and 16.2% of the control group were classified as the anxiety group. Significant differences were observed between the two groups. CONCLUSION: The results of this study suggest that ADHD subjects are more prone to smartphone addiction, becoming depressed or anxious than those in the control group. From this study, we could suggest that students with ADHD are more easily affected by smartphone addiction than normal control subjects. In addition, we might understand how some psychiatric problems like depression, anxiety, and low self-esteem are related to ADHD and smartphone addiction.

A Case of Fatal Multiple Cerebral Aspergillosis in a Patient with Acute Promyelocytic Leukemia during Complete Remission / 대한혈액학회지

Cerebral aspergillosis accounts for about 10% of all the cases of invasive aspergillosis. The brain is the only infected site in less than 10% of cases. The patients at high risk for of aspergillosis are immunocompromised patients such as those in a neutropenic state after chemotherapy, AIDS and etc. We experienced a case of cerebral aspergillosis in a patient with acute leukemia that was in complete remission. The patient visited our hospital's ER due to nasal bleeding, and then he was quickly diagnosed as having acute promyelocytic leukemia. After the first induction chemotherapy, he achieved a complete remission. Loss of consciousness developed on day 31 after chemotherapy. High signal intensity in the right temporooccipital lobe and multiple nodular lesions in both cerebral hemispheres were observed on the brain MRI. Stereotaxic biopsy showed septate aspergillus hyphae in the brain specimen. Despite of the use of amphotericin B deoxycholate, the patient died of recurrent grand mal seizure and multiple organ failure.

The anti-inflammatory effects of angiotensin II blockade in animal model of cyclosporine-induced nephropathy / 대한내과학회지

BACKGROUND: Long-term treatment of immunosuppresant CsA causes interstitial inflammation and fibrosis in the kidney. Renin-angiotensin system (RAS) plays the most important role in the pathogenesis CsA-induced renal injury. Accordingly we evaluated the anti-inflammatory effect of angiotensin II blockades using losartan (LSRT) in a rat model of chronic CsA nephropathy. METHODS: Male Sprague-Dawley rats, initially weighing 225 to 250 g, were used. After 1 week of a low-salt diet (0.05% sodium), the rats were randomized into four groups and treated for 4 weeks. The Vehicle (VH) group was treated with olive oil. The VH+LSRT group was treated with olive oil and LSRT. The CsA group received CsA. The CsA+LSRT group was simultaneously treated with CsA and LSRT. The anti-inflammatory effect of LSRT was evaluated with C-reactive protein (CRP) expression, osteopontin (OPN) mRNA and protein expression, and ED-1 infiltration RESULTS: The CsA treatment caused an increase in serum creatinine and a decrease in creatinine clearance compared with that of the VH group. Intrarenal CRP positive cells were significantly decreased in the CsA+LSRT group compared with the CsA group (38.0 +/- 2.1 vs. 65.0 +/- 5.1, p<0.01). In the CsA group, the degree of OPN mRNA expression was increased compared with that of the VH group. But, OPN mRNA expression was decreased in the CsA+LSRT group (387.5 +/- 56.6% vs. 719.8 +/- 58.5%, p<0.05). In the degree of ED-1 infiltration, we had a similar results such as CRP and OPN mRNA expression (CsA group 30.5 +/- 8.0 vs. CsA+LSRT 86.0 +/- 11.0, p<0.01). CONCLUSION: We concluded that the anti-inflammatory effects of angiotensin II blockade has a potential protective effect against CsA-induced renal injury.