OBJECTIVE: Pituitary adenylate cyclase-activating polypeptide (PACAP), a novel hypothalamic neuropeptide, has been suggested to play a role in ovarian folliculogenesis. The present study evaluated the effect of PACAP on the growth of preantral follicles. METHODS: Preantral follicles were mechanically isolated from ovaries of 21-day-old rats and cultured in groups for 3 days in serum-free medium in the absence or presence of PACAP-38 (10-6 M). RESULTS: Treatment with PACAP-38 resulted in an increase in follicle diameter by 75% whereas treatment with follicle stimulating hormone (FSH) increased follicle diameter by 65%. PACAP-38 treatment enhanced the granulosa cell proliferation as measured by thymidine incorporation analysis. Furthermore, the production of progesterone by cultured granulosa cells and GFSHR-17 cell line was stimulated by PACAP-38. Interestingly, PACAP enhanced FSH action on stimulation of SF-1 and aromatase gene expression. CONCLUSION: The present results demonstrate that PACAP stimulated preantral follicle growth by potentiating proliferation and by stimulating steroidogenesis.
Animals ; Aromatase ; Cell Line ; Female ; Follicle Stimulating Hormone* ; Gene Expression ; Granulosa Cells ; Neuropeptides ; Ovarian Follicle* ; Ovary ; Pituitary Adenylate Cyclase-Activating Polypeptide* ; Progesterone ; Rats ; Thymidine

PURPOSE: This study was performed to explore the effect of senior simulation on nurses' attitudes toward the elderly. METHOD: Twenty-seven nurses working in various settings such as acute hospitals, community health centers, geriatric hospitals, and clinics were recruited. Among them, 25 subjects completed the whole experimental protocol. Aging Semantic Differential Scaling was utilized to evaluate attitudes toward the elderly and 'Suit for Experiencing Being Aged' from the Sakamoto Model was provided for the experiment. Before and after the experiment subjects filled out questionnaires. RESULT: Attitude score before experiment was 4.36, which indicates neutral attitude. Objective attitude scores were not different significantly after experiment. However subjective statements indicated attitude changes in a positive way. CONCLUSION: Senior simulation can affect nurses' attitude toward elderly in subjective way. That is, nurses became more empathetic and understanding to elderly's physical limitations and felt more initiative nursing approach were needed in caring elderly.
Adult ; *Aged ; *Attitude of Health Personnel ; Female ; Humans ; Nurse-Patient Relations ; Nurses/*psychology ; *Patient Simulation

PURPOSE: This study aimed to present and test a structural model for describing and predicting the factors affecting subjective career satisfaction of nurses experiencing rotation and to develop human resources management strategies for promoting their career satisfaction related to rotation. METHODS: In this cross-sectional study, we recruited 233 nurses by convenience sampling who had over 1 year of career experience and who had experienced rotation at least once at G university hospital. Data were collected from August to September in 2016 using self-reported questionnaires. The exogenous variables consisted of rotation perception and rotation stress. Endogenous variables consisted of career growth opportunity, work engagement, and subjective career satisfaction. A hypothetical model was tested by asymptotically distribution-free estimates, and model goodness of fit was examined using absolute fit, incremental fit measures. RESULTS: The final model was approved and had suitable fit. We found that subjective career satisfaction was directly affected by rotation stress (β=.20, p=.019) and work engagement (β=.58, p<.001), indirectly affected by rotation perception (β=.43, p<.001) through career growth opportunity and work engagement. However, there was no total effect of rotation stress on subjective career satisfaction (β=−.09, p=.270). Career growth opportunity directly and indirectly affected subjective career satisfaction (β=.29, p<.001; β=.28, p<.001). These variables accounted for 65% of subjective career satisfaction. CONCLUSION: The results of this study suggest that it is necessary to establish systematic and planned criteria for rotation so that nurses can grow and develop through sustained work and become satisfied with their career.
Cross-Sectional Studies ; Humans ; Job Satisfaction ; Models, Structural ; Stress, Psychological

Purpose: : The purpose of this study was to examine the effects of self-care intervention using a mobile instant messenger on hemodialysis patient`s knowledge, self-efficacy, self-care behavior and physiological indices. Methods: A non-equivalent control group pretest-posttest design was used. The participants consisted of 38 patients who had a regular hemodialysis of Seoul National University Hospital. They were assigned to one of two groups; an experimental group (n = 19) that had self-care intervention for 8 weeks and a control groups (n = 19) that had routine hemodialysis treatment. The data collection was conducted from September 5, 2022 to October 29, 2022. The date were analyzed by Chi-square test, Independent t-test, and Fisher`s exact test using SPSS Win 29 program. Results: There was a significant difference in self-efficacy (t = 3.42, p = .002) between experimental and control groups. There was no significant differences between the two groups in knowledge (t = 0.80, p = .428), self-care behavior (t = 0.09, p = .929), potassium (t = -0.82 p = .416), phosphorus (t = -0.03, p = .974), weight gain (t = 0.16, p = .867). Conclusion Based on above results, it was verified that self-care intervention in this study was an effective indicator in improving the self-efficacy. There is a requirement to formulate comprehensive interventions capable of enhancing various indicators.

The anterior clinoid process may be pneumatized by an extension of the sphenoid sinus air space. An anterior clinoid mucocele is a particularly rare entity, which can lead to optic complication due to its proximity to the optic nerve. Optic neuropathy is seldom recoverd if there is a delay in treatment for more than 10 days. The primary treatment for mucocele is surgical excision. We report a patient with mucocele of the anterior clinoid process that resulted in recurrent monocular visual loss. The patient underwent endoscopy-assisted transnasal marsupialization of mucocele with full recovery of visual function.
Humans ; Mucocele* ; Optic Nerve ; Optic Nerve Diseases ; Sphenoid Sinus

Microalbuminuria is a marker of generalized endothelial dysfunction resulting from arterial stiffness or insulin resistance, and brachial-ankle pulse wave velocity (baPWV) is a good measure of arterial stiffness. We aimed to investigate whether elevated baPWV is independently associated with microalbuminuria. This study included 1,648 individuals aged over 40 who participated in the baseline Multi-Rural Cohort Study conducted in Korean rural communities between 2005 and 2006. Participants were classified into less than 30 mg/g as normoalbuminuria or 30-300 mg/g as microalbuminuriausing urinary albumin creatinine ratio (UACR). The median and Q1-Q3 baPWV values were significantly higher in the microalbuminuric group both in men (1,538, 1,370-1,777 cm/s vs. 1,776, 1,552-2,027 cm/s, P < 0.001) and women (1,461, 1,271-1,687 cm/s vs. 1,645, 1,473-1,915 cm/s, P < 0.001). BaPWV was independently associated with microalbuminuria in both genders after adjusting for pulse rate; fasting blood glucose; triglyceride; homeostatic model assessment insulin resistance (HOMA(IR)) and, history of hypertension and diabetes. Fasting blood sugar and HOMA(IR) were judged as having nothing to do with multicolinearity (r = 0.532, P < 0.001). Elevated baPWV was independently associated with microalbuminuria regardless of insulin resistance among rural subjects over 40 yr.
Adult ; Aged ; Albuminuria/*diagnosis/etiology/metabolism ; Ankle Brachial Index ; Ankle Joint/*physiopathology ; Blood Chemical Analysis ; Blood Glucose/analysis ; Brachial Artery/*physiopathology ; Cohort Studies ; Diabetes Mellitus, Type 2/complications/diagnosis ; Female ; Humans ; Hypertension/complications/diagnosis ; Male ; Middle Aged ; *Pulse Wave Analysis ; Risk Factors ; *Rural Population ; Serum Albumin/analysis ; Triglycerides/blood ; Vascular Stiffness

BACKGROUND: Both left ventricular hypertrophy (LVH) and microalbuminuria (MA) are well described markers or surrogate for cardiovascular outcome. Many factors are known to be related to the two markers which are encountered together in some patients. But the epidemiological backgrounds for the two markers are not clearly demonstrated so far. METHODS: Measurements of echocardiographic left ventricular mass index (LVMI) and MA were introduced to the population survey in Yangpyeong County, Korea in 2005 and 2006 for 1,767 among 2,028 subjects. The criteria for MA were 17-250 mg/g of albumin creatinine ratio (ACR) in male and 25-355 mg/g in female. 1,636 data were analyzed. RESULTS: Age was 60.9 +/- 10.4 years and the proportion of female was 59.4% (972). Body mass index (BMI) was 24.7 +/- 3.21 kg/m2 and blood pressure were 124.1 +/- 17.3 mm Hg/80.0 +/- 10.5 mm Hg. LVMI was 45.3 +/- 11.6 g/m2.7 and ACR was 23.9 +/- 150.9 mg/g. Prevalence of LVH and MA were 23.5% and 12.2%, respectively. In male/female, odds ratios for MA were 1.035 (range, 1.010-1.061)/1.01 (range, 0.988-1.032) for age, 0.962 (range, 0.882-1.049)/0.941 (range, 0.881-1.006) for BMI, 1.754 (range, 1.097-2.804)/2.158 (range, 1.413-3.298) for hypertension (HTN), 4.87 (range, 2.883-8.226)/2.154 (range, 1.311-3.539) for diabetes, 1.005 (range, 0.999-1.012)/1.007 (range, 1.002-1.012) for cholesterol, and 1.011 (range, 0.987-1.035)/1.011 (range, 0.994-1.029) for LVH. CONCLUSIONS: In a population level, even if diabetes was strongest factor for MA, HTN is also independent factor for MA in both genders.
Albuminuria ; Blood Pressure ; Body Mass Index ; Cholesterol ; Creatinine ; Female ; Humans ; Hypertension ; Hypertrophy ; Hypertrophy, Left Ventricular ; Korea ; Male ; Obesity ; Odds Ratio ; Prevalence ; Republic of Korea

PURPOSE: Understanding changes in pathogen and pneumonia prevalence among pediatric pneumonia patients is important for the prevention of infectious diseases. METHODS: We retrospectively analyzed data of children younger than 18 years diagnosed with pneumonia at 117 Emergency Departments in Korea between 2007 and 2014. RESULTS: Over the study period, 329,380 pediatric cases of pneumonia were identified. The most frequent age group was 1–3 years old (48.6%) and the next was less than 12 months of age (17.4%). Based on International Classification of Diseases, 10th revision diagnostic codes, confirmed cases of viral pneumonia comprised 8.4% of all cases, pneumonia due to Mycoplasma pneumoniae comprised 3.8% and confirmed cases of bacterial pneumonia 1.3%. The prevalence of confirmed bacterial pneumonia decreased from 3.07% in 2007 and 4.01% in 2008 to 0.65% in 2014. The yearly rate of pneumococcal pneumonia also decreased from 0.47% in 2007 to 0.08% in 2014. A periodic prevalence of M. pneumoniae pneumonia (MP) was identified. CONCLUSION: The increased number of patients with pneumonia, bacterial pneumonia, pleural effusion, and empyema in 2011 and 2013–2014 resulted from an MP epidemic. We provide evidence that the frequency of confirmed cases of bacterial pneumonia and pneumococcal pneumonia has declined from 2007 to 2014, which can simultaneously reflect the effectiveness of the pneumococcal conjugate vaccine.
Child ; Communicable Diseases ; Community-Acquired Infections ; Emergencies* ; Emergency Service, Hospital* ; Empyema ; Humans ; Information Systems* ; International Classification of Diseases ; Interrupted Time Series Analysis ; Korea* ; Mycoplasma pneumoniae ; Pleural Effusion ; Pneumonia* ; Pneumonia, Bacterial ; Pneumonia, Mycoplasma ; Pneumonia, Pneumococcal ; Pneumonia, Viral ; Prevalence* ; Retrospective Studies

The purpose of this in vitro study was to evaluate the effect of surface defects and cross-sectional configuration of NiTi rotary files on the fatigue life under cyclic loading. Three NiTi rotary files (K3(TM), ProFile(R), and HERO 642(R)) with #30/.04 taper were evaluated. Each rotary file was divided into 2 subgroups: control (no surface defects) and experimental group (artificial surface defects). A total of six groups of each 10 were tested. The NiTi rotary files were rotated at 300rpm using the apparatus which simulated curved canal (40 degree of curvature) until they fracture. The number of cycles to fracture was calculated and the fractured surfaces were observed with a scanning electron microscope. The data were analyzed statistically. The results showed that experimental groups with surface defects had lower number of cycles to fracture than control group but there was only a statistical significance between control and experimental group in the K3(TM) (p<0.05). There was no strong correlation between the cross-sectional configuration area and fracture resistance under experimental conditions. Several of fractured files demonstrated characteristic patterns of brittle fracture consistent with the propagation of pre-existing cracks. This data indicate that surface defects of NiTi rotary files may significantly decrease fatigue life and it may be one possible factor for early fracture of NiTi rotary files in clinical practice.
Fatigue* ; Fractures, Stress*

Poland syndrome is characterized by an absent of the pectoralis major muscle, with ipsilateral defect of the upper extremity, usually syndactyly. The incidence of this syndrome has been estimated at 1 per 32,000 persons and more than 400 patients have been described worldwide after Alfred Poland's report. but there was no report of Poland syndrome associated with Diabetic Mellitus in childhood. Recently, we experienced a 14 year-old female patient who showed typical Poland syndrome, a left pectoralis muscle hypoplasia and left synbrachydactyly, associated with Diabetes mellitus complicated by ketoacidosis.
Adolescent ; Diabetes Mellitus ; Diabetic Ketoacidosis* ; Female ; Humans ; Incidence ; Ketosis ; Pectoralis Muscles ; Poland Syndrome* ; Poland* ; Syndactyly ; Upper Extremity