Ureteral obstruction causes increase in renal blood flow (RBF) and partial impairment of the autoregulation of RBF. Although increased renal prostaglandin production is responsible for the former, it is not clear whether or not it is also responsible for the latter. Therefore, we investigated the role which prostaglandins play in the autoregulation of RBF during an ureteral pressure elevation (40 cmH2O). Since the major mechanism of RBF autoregulation is the tubuloglomerular feedback studying the interaction between ureteral pressure and RBF autoregulation may reveal the role of prostaglandin in tubuloglomerular feedback. To pursue the purpose, six anesthetized dogs were prepared for the measurements of RBF, mean systemic and renal arterial pressure (RAP) and the manipulation of ureteral pressure. The autoregulation curves were determined during both control and elevation of the ureteral pressure, before and after the pretreatment with indomethacin, a cyclooxygenase inhibitor. The desired ureteral pressure was achieved by vertically elevating the water-filled reservoir connected to the ureteral catheter to 40 cm above the kidney level. In response to the elevation of the ureteral pressure, RBF increased from 170 +/- 8 ml cntdot min -1 to 189+/-8, and the systemic arterial pressure didn't change significantly. During spontaneous urine flow, RBF autoregulation was abolished when RAP was reduced to 59+/-3 mmHg. On the other hand, during the ureteral pressure elevation, the autoregulation curves shifted upward and rightward from control, and the pressure when RBF autoregulation was abolished was 74 +/- 3 mmHg. The pretreatment of the dogs with indomethacin failed to affect the lower limit of RBF autoregulation during both control (63 +/- 5 mmHg) and the elevated ureteral pressure (77 +/- 5 mmHg). Since RBF failed to increase in response to the elevated ureteral pressure, RBF autoregulation curves obtained during the elevated ureteral pressure shifted only rightward from indomethacin control. The results indicate that the increased intrarenal level of prostaglandin or prostaglandin-induced vasodilation does not appear to bear any relation to the reduction in the autoregulatory capacity during partial ureteral obstruction. It seems that the partial impairment of the autoregulation during acute ureteral obstruction is due to the consumption of tubuloglomerular feedback mechanism at spontaneous RAP and that prostaglandin is neither mediator nor effector of tubuloglomerular feedback mechanism.
Animals ; Arterial Pressure ; Dogs* ; Hand ; Homeostasis ; Indomethacin ; Kidney ; Prostaglandin-Endoperoxide Synthases ; Prostaglandins ; Prostaglandins I ; Renal Circulation* ; Social Control, Formal* ; Ureter* ; Ureteral Obstruction* ; Urinary Catheters ; Vasodilation

Thirty healthy patients were studied to evaluate the effect of muscle relaxants on intra-ocular pressure (IOP) during anesthesia. The patients were divided intro three groups-succinrlcholine group(Img/k7,n=10) , pancu-ronium group(0.08mg/kg,n=10), and vecuronium group(0, Img/kg,n=10) according to the muscle relaxants used. All patients were premedicated with robinul 0.2mg and lorazepam 4mg one hour before surgery. Tracheal intubation was fellowed by thiopental sodium 5mg/ kg and muscle relaxant. Anesthesia was maintained with O2-N2O-enflurane and respiration and was controlled by anesthetic ventilator (Dameca). The lOP was measured hy Schotz tonometer, before induction of anesthesia, at 75~100% depression of twitch height on train of-four after injection of muscle relaxant, and at 1,3, 5, 10, minutes after intubation respectively. Heart rate, mean arterial pressure, and end-tidal CO2 tensions were also measured simultaneously. The results were as follows ; 1) At 75~100% depression of twitch height, IOP wart elevated significantly in succinylc-holine group but reduced significantly in both pancuronium and vecuronium groups as Compared With pre induction value. 2) IOP was elevated in all groups after 1 minute of intubation, there were no statistical significance in pancuronium or vecuronium group as compared with pre induction value. After 3 minutes of intubation, IOP was reduced in all groups in proportion to the depth of anesthesia. 3) Cardiovascular changes in vecuronium group were less than those in succinrlcholine or pancuronium group. In conclusion vecuronium, with less cardiovascular changes, may be indicated for anest-hesia of open eye injury compare other muscle relaxants.
Anesthesia ; Arterial Pressure ; Depression ; Eye Injuries ; Heart Rate ; Humans ; Intraocular Pressure* ; Intubation ; Lorazepam ; Pancuronium ; Respiration ; Thiopental ; Vecuronium Bromide* ; Ventilators, Mechanical ; Warts

BACKGROUND: Recently, many studies have reported that university students have been suffering from stress because of their the uncertainty of their future and employment. Eating habits have often been considered as one of health-related behaviors that may be affected by life stress. The purpose of this study was to examine the association between stress and eating habits in university students. METHODS: A cross-sectional study was designed. The subjects were 282 university students which assessed their eating habits and stresses. The total numbs of students in the study 263. Eating habits were scored using a questionnaire consisting of three categories-regularity, balance, and preference. The stress was assessed by modified Korean version of BEPSI. RESULTS: The stress score was 2.4 and the total score of eating habits was 44.2. The regularity among the domains of eating habits was 14.1, the balance score was 16.1, and the preference was 14.0. In multiple regression after adjustment with confounding variables, stress had a negative relationship with eating habits. CONCLUSION: The relationship between stress and eating habits was statistically significant, especially in regularity and balance. It is important to know not only the health status, but also the factors associated with health such as stresses and eating habits in order to improve the health status of the university students. Further research needs to uncover causality and make a generalization.
Confounding Factors (Epidemiology) ; Cross-Sectional Studies ; Eating* ; Employment ; Generalization (Psychology) ; Humans ; Stress, Psychological ; Uncertainty ; Surveys and Questionnaires

OBJECTIVE: Since the introduction of selective serotonin reuptake inhibitor in 1980s, there have been many changes in the treatment strategies for depressive disorders. To be of help for clinicians to select appropriate treatment strategies, Korean Medication Algorithm Project for Major Depressive Disorder was developed in 2002 and revised in 2006. To reflect changes in treatment pattern for depressive disorders since 2006, we revised the previous algorithm and developed Korean Medication Algorithm Project for Depressive Disorder 2012 (KMAP-DD 2012). METHODS: 123 psychiatrists who have vast clinical experiences in treating depressive disorders are primarily selected, and the survey was sent to them via mails. Among them, 67 psychiatrists answered the survey. This survey was composed of 44 questionnaires of which the contents covered from overall treatment strategies to treatment strategies under the specific circumstances. Based on 95% confidence interval and overall scores, each treatment of option was classified into three categories of recommendation; first-line, second-line, and third-line treatment option. RESULTS: In child and adolescent, antidepressant monotherapy was selected as first-line treatment option for mild, moderate, and severe episode without psychotic features. The combination of antidepressant and atypical antipsychotics was advocated as first-line treatment option for severe episode with psychotic features. In geriatric depression, antidepressant monotherapy was advocated as treatment of choice for mild to moderate episode. For severe episode without psychotic features, antidepressant monotherapy was selected as first-line treatment option. For severe episode with psychotic features, combination of antidepressant and atypical antipsychotics was selected as treatment of choice. In premenstrual dysphoric disorder, antidepressant monotherapy was advocated as first-line treatment option. In postpartum depression, antidepressant monotherapy was selected as first-line treatment option for mild to moderate episode. For severe episode without psychotic features, both antidepressant monotherapy and combination of antidepressant and atypical antipsychotics were selected as first-line treatment option. For severe episode with psychotic features, both combination of antidepressant and atypical antipsychotics and combination of mood stabilizer and atypical antipsychotics were advocated as first-line treatment option. CONCLUSION: In KMAP-DD 2012, the recommendations for treatment options in Child and Adolescent Depressive Disorder and Geriatric Depression were newly introduced. In aspects of treatment options for Female Depression, KMAP-DD 2006 and KMAP-DD 2012 had some similarities. But there were some changes of the treatment strategies in KMAP-DD 2012 which seemed to reflect recent study results.
Adolescent ; Aged ; Antipsychotic Agents ; Child ; Depression ; Depression, Postpartum ; Depressive Disorder ; Depressive Disorder, Major ; Female ; Humans ; Postal Service ; Psychiatry ; Surveys and Questionnaires ; Serotonin

OBJECTIVE: Recently, the pharmacotherapy including antidepressants in treating depression is widely used. However, as a result of newer agents that are continuously introduced, pharmacological treatment strategy is also changing. To catch up this trend, Korean Medication Algorithm Project for Depressive Disorder was developed in 2002 and revised in 2006. Since the last revision, the third revision reflected the new research result and the latest trends in the areas of pharmacological treatment. METHODS: One hundred and twenty three psychiatrists who have vast clinical experiences in depressive disorder are primarily selected then survey was sent to them via mail, 67 surveys were retried. This survey is constructed with 44 questionnaires in which contained from overall treatment strategies to treatment strategies under the specific circumstances. Each treatment strategy or treatment option is evaluated with the overall score of nine and the following 95% confidence interval result treatment option were divided into three phases of recommendation; primary, secondary, tertiary. RESULTS: For dysthymic disorder, antidepressant monotherapy including selective serotonin reuptake inhibitor (SSRI) [(es)citalopram, fluoxetine, sertraline, paroxetine], serotonin-norepinephrine reuptake inhibitor (SNRI) (venlafaxine, duloxetine, milacipran), and mirtazapine, was recommended as the first line medications. For melancholic type, SSRI, SNRI, and mirtazapine were recommended as the first line medications. For atypical type and seasonal pattern, bupropion as well as SSRI, SNRI, and mirtazapine, were recommended as the first line medications. CONCLUSION: The preferences of antidepressants in experts were different according to the subtype of depression. These results suggest that clinicians have to consider the subtype of depression in the treatment of depressive disorders.
Antidepressive Agents ; Bupropion ; Depression ; Depressive Disorder ; Depressive Disorder, Major ; Dysthymic Disorder ; Fluoxetine ; Mianserin ; Postal Service ; Psychiatry ; Surveys and Questionnaires ; Seasons ; Serotonin ; Sertraline ; Thiophenes ; Duloxetine Hydrochloride

We aimed to compare the recommendations of the Korean Medication Algorithm Project for Depressive Disorder 2012 (KMAP-DD 2012) with other recently published treatment guidelines for depressive disorder. We reviewed a total of five recently published global treatment guidelines and compared each treatment recommendation of the KMAP-DD 2012 with those in other guidelines. For initial treatment recommendations, there were no significant major differences across guidelines. However, in the case of nonresponse or incomplete response to initial treatment, the second recommended treatment step varied across guidelines. For maintenance therapy, medication dose and duration differed among treatment guidelines. Further, there were several discrepancies in the recommendations for each subtype of depressive disorder across guidelines. For treatment in special populations, there were no significant differences in overall recommendations. This comparison identifies that, by and large, the treatment recommendations of the KMAP-DD 2012 are similar to those of other treatment guidelines and reflect current changes in prescription pattern for depression based on accumulated research data. Further studies will be needed to address several issues identified in our review.
Depression ; Depressive Disorder* ; Drug Therapy ; Prescriptions