Dermal wound healing is a complex process that involved inflammation leading to re-epithelialization, granulation tissue, and tissue remodeling. Previous studies from our laboratory have shown that polysaccharides isolated from fungus, Phellinus gilvus (PG) have various anti-inflammatory activities. In present study, we have assessed the effect of polysaccharides from PG on the dermal wound healing of polysaccharides from PG in streptozotocin-induced diabetic rat model. Six of 6-mm circular wounds were created with biopsy punch on the 4th day after induction of diabetes. After 24 hours, each test substance was applied to the wound twice a day for next 5 days. Circular wounds treated with PG showed significantly reduced wound contraction and complete reepithelialization, as compared to wounds of non-treated (p < 0.05). These results show that polysaccharides isolated from PG enhanced wound repair in diabetic impaired healing, and could be developed as a wound healing agent in such clinical settings.
Administration, Cutaneous ; Animals ; Anti-Inflammatory Agents/pharmacology ; Basidiomycota/*metabolism ; Diabetes Mellitus, Experimental/*pathology ; Histocytochemistry ; Male ; Polysaccharides/isolation&purification/*pharmacology ; Rats ; Rats, Sprague-Dawley ; Skin/*injuries ; Streptozocin ; Wound Healing/*drug effects ; Wounds, Penetrating/*drug therapy

PURPOSE: The aim of this study was to identify whether awareness and perceived ease in using parental leave influence job satisfaction of nurses in a public hospital. METHODS: The participants were 425 nurses working in a public hospital. A questionnaire was used to collect data from October 12 to October 25, 2016. The influence of the factors on job satisfaction of nurses was analyzed by multiple hierarchical regression. RESULTS: Nurses taking leave accounted for 46.8% (75 nurses) of 160 married nurses. They worried about adaptation after return to work (30.7%) and complained about disadvantages related to using parental leave (45.3%). The percentage of nurses on leave replaced by new full time nurses was 70.7%. Nurses' awareness (β=.16) of perceived ease of using parental leave (β=.32) influenced the nurses' job satisfaction (R2=.21). CONCLUSION: To improve job satisfaction for nurses, it is necessary to increase awareness and perceived ease of using parental leave. Public hospitals should replace nurses on leave with temporary nurses and help returning nurses adapt to their jobs as they return to work. Nursing managers should create a healthy climate in which it is easy for nurses to take parental leave.
Climate ; Hospitals, Public ; Humans ; Job Satisfaction ; Nursing ; Parental Leave ; Parents ; Return to Work

OBJECTIVE: This study was carried out to evaluate the effect of the isolation methods of inner cell mass from mouse blastocyst, types of feeder cells and treatment time of mitomycin C on the formation rate of ICM colony. METHODS: The inner cells were isolated by conventional immunosurgery, partial trophoblast dissection with syringe needles and whole blastocyst co-culture method. Commercially available STO and primary cultured mouse embryonic fibroblast (pMEF) feeder cells were used, and mitomycin C was treated for 1, 2 or 3 hours, respectively. The formation rate of ICM colony was observed after isolation of ICM and culture of ICM on the feeder cells for 7 days. RESULT: The ICM colony formation rate on STO were significantly higher in partial trophoblast dissection group (58%) than that in immunosurgery (12%) or whole blastocyst culture (16%) group (p<0.05). The formation rate on pMEF feeder layer was higher in partial trophoblast dissection (88%) and whole blastocyst culture (82%) group than that in immunosurgery (16%) group (p<0.05). When mitomycin C treated to pMEF for 2 hours, the formation rate of 88% was significantly higher than those of other conditions. CONCLUSIONS: Above results showed that the efficient isolation method of ICM from blastocyst was the partial trophoblast dissection and the appropriate treatment time of mitomycin C was 2 hours. However, the subculture of ICM colony and characterization of stem cells should be carried out to confirm the efficacy of the partial trophoblast dissection method.
Animals ; Blastocyst ; Coculture Techniques ; Feeder Cells* ; Fibroblasts ; Mice* ; Mitomycin* ; Needles ; Stem Cells ; Syringes ; Trophoblasts

OBJECTIVE: Telomerase is a ribonucleoprotein that synthesizes TTAGGG repeats onto chromosome ends. The expression of telomerase is thought to be required for cellular immortality and carcinogenesis. This study was conducted to examine the telomerase activation occurs in cervical carcinogenesis. METHODS: The standard telomeric repeat amplification protocol(TRAP) was used to examine telomerase activity in tissues of 10 normal cervix, 10 carcinoma in situ, and 21 invasive cervical carcinoma. RESULTS: Telomerase activity was detected in tissues of 16/21(76.2%) invasive carcinoma, in 5/10(50.0%) carcinoma in situ, and in 3/10(30.0%) normal cervix. But the degree of telomerase activity in normal cervix was weak. There was significant difference in 3 groups(p<0.05). The results of neoadjuvant chemotherapy in 10 invasive cervical carcinoma were as follows. In 8 cases of which tumor size decreased more than 50%, 5 were positive for telomerase. In 2 cases that didn't respond to chemotherapy by tumor size, 1 was positive for telomerase. There was no significant difference between 2 groups. All of the 5 cases that had pelvic lymph node metastasis revealed positive telomerase activity, and the 11 cases of 16 cases that didn't have pelvic lymph node metastasis were positive for telomerase, but there was no significant difference in 2 groups. The positivity of telomerase activity in clinical stage of invasive cervical carcinoma was 73.3% in stage I(11/15), 75.0% in stage II(3/4), 100% in stage III(1/1), and 100% in stage IV(1/1), but there was no significant difference in each stages. CONCLUSION: Telomerase seems to be uniquely associated with malignant transformation of cervix and can be used as a tumor marker. Additional studies are needed to better clarify the biological significance of telomerase expression in cervical tumorigenesis.
Carcinogenesis ; Carcinoma in Situ ; Cervix Uteri ; Drug Therapy ; Female ; Lymph Nodes ; Neoplasm Metastasis ; Ribonucleoproteins ; Telomerase* ; Uterine Cervical Neoplasms*

Serial neurosonographic examinations are routinely performed at frequent intervals during nursery course of all preterm infants of very low-birth-weight who are admitted to the intensive care nursery of Presbyterian Medical Center from November 1, 1990 to July 30, 1992. After discharge, the following survivors who had received periodic, serial scanning by meas of cranial ultrasonography were longitudinally observed in an interdisciplinary neurodevelopmental follow-up program to a mean corrected age of 13 months. Neurodevelopmental outcome was assessed by means of Vojta's postural reaction and other neurological examinations. The results are as follows: 1) The incidence of PV-IVH in the study was 79%. 2) According to Papile's grading system of PV-IVH, gradel was 20%, gradell was 46%, gradelll was 19%, and grade IV was 13%. 3) The risk factors associated with PV-IVH were birth weight, gestational age, apgar score, ventilator care, RDS, and sepsis. 4) The mortality of PV-IVH was 20% for gradel, 19% for gradell, 44% for gradelll, and 67% for grade lV. 5) According to relationship between PV-IVH and neurodevelopmental outcome, in two of the four subjects with grade lll PV-IVH, moderate/severe CCD was developed. 6) According to relationship between PVE with cysts and nuerodevelopmental outcome, moderate/severe PVE with periventricular cysts larger than 3mm in diameter was associated with development of severe CCD.
Apgar Score ; Birth Weight ; Follow-Up Studies ; Gestational Age ; Hemorrhage* ; Humans ; Incidence ; Infant, Newborn ; Infant, Premature* ; Critical Care ; Mortality ; Neurologic Examination ; Nurseries ; Protestantism ; Risk Factors ; Sepsis ; Survivors ; Ultrasonography ; Ventilators, Mechanical

Eight patients in the state of ASA classification l, ll were investigate. Blood samples were collected before, just after, 30 minutes after and 60 minutes after induction of anesthesia. Glucose and electrolyte changes in relation to maintenance fluids in balanced and halothane anesthesia were as follows. 1) In both anesthetic techniques blood sugar level showed increasing tendency according to duration of anesthesia. 2) There were no specific changes in serum electrolytes related to type of anesthesia. 3) The administration of D/S and H/D showed a little increase in Na+ and Cl- level compared to the administration of just DsW. 4) The administration of H/d showed less increase in K+ level than the administration of DsW or D/S. 5) Just after induction of anesthesia the K+ level increased a little and decreased gradually thereafter.
Anesthesia ; Anesthesia, General* ; Blood Glucose* ; Classification ; Electrolytes* ; Glucose ; Halothane ; Humans

The purpose of this study is to examine the factors influencing the allergic rhinitis patients' satisfaction with laser surgery. The data were collected by telephone interviews with 211 patients who visited E university hospital. The statistical methods used for the analysis were factor analysis, reliability test, and hierarchical multiple regression. We find that satisfaction level is a function of not only the surgery outcome but also the socio-psychological experience during treatment. With the improvement in nasal allergic condition, patients were more likely to be satisfied with medical services. And patients who had positive experience with physicians and facilities reported higher satisfaction level. While the surgery outcome explained 68% of the variation of satisfaction level, socio-psychological experience explained 23% of it. This result clearly shows that physicians need to pay attention to the socio-psychological aspect as well as the technical aspect of medical services.
Humans ; Interviews as Topic ; Laser Therapy* ; Patient Satisfaction* ; Rhinitis*

BACKGROUND: Canine scabies is caused by an infestation of Sarcoptes scabiei var. canis (S. canis) in dogs and they can be transmitted to humans. Recently pet raising has been increasing in Korea and various parasitic infestations contracted from them have also been increasing including canine scabies. OBJECTIVE: The purpose of this study was to examine the clinical and histopathological features of experimental canine scabies. METHODS: Two dogs experimentally infested were observed for a year. They were examined physically and the numbers of S. cans were counted from scraping samples of the ear, leg and abdomen every 3 to 7 days and skin biopsies were taken. One was given systemic corticosteroids(Dogl) and the other was observed in its natural course(Dog2). RESULTS: Dogl-Clinically severely pruritic, markedly thick hyperkeratotic scales, crust and generalized erythema on the whole body developed with huge numbers(up to 754.9/100mg from scales of the abdomen) of mites, and histopathologically showed features similar to human crusted scabies. Dog2-Clinically showed milder features than Dogl including the number of S. canis(up to 242.6/100mg from scales of the ear), but histopathologically showed similar features with Dogl. Dog2 also showed a prompt response to one topical application of 20% benzyl benzoate solution. CONCLUSIONS: 1) The number of S. canis increased markedly in both normal and corticosteroidtreated dogs, although it was more significantly increased in the corticosteroid-treated one. 2) Histopathology showed features similar to classical scabies in the early stage but features of human crusted scabies in the full-blown stage. 3) Morphologically Sarcoptes canis differs from Sarcoptes scabiei var. hominis.
Abdomen ; Animals ; Benzoates ; Biopsy ; Dogs ; Ear ; Erythema ; Humans ; Korea ; Leg ; Mites ; Sarcoptes scabiei ; Scabies* ; Skin ; Weights and Measures

Glutathione S-Transferase (GST) is a conjugation enzyme in the metabolism of exogenous and endogenous lipophilic compounds for their excretion and detoxification. Acidic isozyme of GST, GST-Pi, has been recognized as a preneoplastic marker in the experimental hyperplastic nodules of liver in rats, and GST-Pi is abundant in the squamous cells of the skin, also. This histochemical study was carried out to evaluate the distribution and the relationship between the differentiation status of squamous cells in dysplastic or neoplastic epithelium in various organs. The human placental form of glutathione S-transferase (GST-Pi) were stained immunohistochemically with specific anti GST-Pi rabbit antibody in 23 cases of human squamous cell carcinomas. The patients consisted of 14 cases from the uterine cervix, 3 cases from the esopahgus, 3 cases from the lung and 3 cases from the larynx. The results obtained were as follows; 1. Basal cells in normal mucosa were stained negative for GST-Pi while superficial keratinocytes were stained moderately positive. Basal dysplastic cells were stained negatively or weakly positive. Carcinoma cells especially large cells either keratinizing or nonkeratinizing were stained moderately to strongly. Carcinoma cells surrounding keratin pearl were strongly reacted with GST-Pi than other carcinoma cells. 2. Differentiated cells of squamous cell carcinoma showed moderate to strong positive reaction to GST-Pi staining irrespective of its site of origin. 3. Therefore, Immunohistochemical staining pattern of GST-Pi in various squamous carcinoma cells showed similar immunohistochemical reaction to the GST-pi, which is closely correlated to the degree of differentiation, keratinigation and also suggested that squamous carcinoma cells had abundant GST-Pi related detoxifying system.
Humans ; Rabbits ; Animals

Periventricular-intraventricular hemorrhage (PV-IVH)is one of the most important neurologic lesion of the low birth weight infants. Serial neurosonographic exeaminations were performed in 113 low birth weight infants who were admitted to the neonatal intensive care unit of Presbyterian Medical Center from November 1, 1990to July 31, 1991. The results were summarized as follows: 1) The incidence of PV-IVH in the study was 54% 2) According to Papile's grading system of PV-IVH, grade I was 32.8%, grade II was 45.9%, grade IIIwas 11.5% and grade IV was 9.8%. 3) The onset of PV-IVH was within the first 7 days of life in 82%. 4) Poor activity, apnea, bradycardia and hypotension were statistically significant clinical findings associated with PV-IVH(P<0.05). 5) The risk factors associated with PV-IVH were gestational age, birth weight, hyaling membrane disease, patent ductus arteriosus and artifical ventilation. 6) The mortality of PV-IVH was 0% for grade I, 10.7% for grade II,42.9% for grade III and 83.3% for gradeIV.
Apnea ; Birth Weight ; Bradycardia ; Diagnosis* ; Ductus Arteriosus, Patent ; Gestational Age ; Hemorrhage* ; Humans ; Hypotension ; Incidence ; Infant* ; Infant, Low Birth Weight* ; Infant, Newborn ; Intensive Care, Neonatal ; Membranes ; Mortality ; Protestantism ; Risk Factors ; Ventilation