PURPOSE: This study was conducted to examine the effects of osteoporosis prevention education on Korean breast cancer patients' knowledge and health promoting behavior. METHODS: The participants in this study included breast cancer patients who were registered at a self-help group organized by the Breast Cancer Center of a university hospital in Seoul, Korea. The intervention group received 60 minutes'didactic instruction followed by 30 minutes' interactive session, and reinforcement education with leaflets was given three weeks after the group intervention. In order to measure the effects of the intervention, this study used valid and reliable scales on the knowledge of osteoporosis and health promoting behavior for preventing osteoporosis. A post-test was conducted 12 weeks after the intervention. RESULTS: The results showed significant improvement in three of the five factors of osteoporosis knowledge including bone physiology, the characteristics of osteoporosis, and preventive behaviors in the intervention group. Overall health promoting behavior for preventing osteoporosis had significantly increased in the intervention group compared to the control group. CONCLUSION: Osteoporosis preventive education improved breast cancer patients' knowledge of osteoporosis and health promoting behavior for preventing osteoporosis by inducing their voluntary participation in self-care activities.
Breast Neoplasms* ; Breast* ; Education ; Health Promotion ; Humans ; Korea ; Osteoporosis* ; Physiology ; Self Care ; Self-Help Groups ; Seoul ; Weights and Measures

No abstract available.
Female ; Pregnancy ; Pregnancy, Ectopic*

The cell surface glycoprotein CD44 is a kind of adhesion molecule, which binds hyaluronic acid, type I collagen and fibronectin. Although there have been numerous reports on the expression and the function of CD44 in lymphocytes and macrophages, very little is known about its distribution and definite role in epithelial tissue, especially in oral epithelial one. The present study was performed to investigate the distribution and expression of the CD44 in human gingiva and squamous cell carcinoma(SCC) arising in human gingiva. And the authors compared CD44 expression with histopathologic grade of SCC. The results were as follows: 1. The CD44 was strongly expressed in granular, spinous and basal layers of normal marginal and attached gingiva, in spinous and basal layers of normal sulcular gingiva, and in all epithelial layers of normal junctional gingiva. 2. In SCC of gingiva, the CD44 was expressed in all but one case. In most of the cases the CD44 was expressed at cell membrane and the degree of expression was relatively strong. 3. In low-grade SCC of gingiva, the CD44 was strongly expressed, especially at the basal and spinous layers of abundantly keratinized cancer nests. In high-grade SCC of gingiva, the CD44 expression tended to be weak but was strong at cells showing individual keratinization. This study suggest that the CD44 expression of normal and cancerous gingival epithelium is associated with the degree of proliferation and differentiation of epithelial cells.
Carcinoma, Squamous Cell* ; Cell Membrane ; Collagen Type I ; Epithelial Cells ; Epithelium ; Fibronectins ; Gingiva ; Humans ; Hyaluronic Acid ; Lymphocytes ; Macrophages ; Membrane Glycoproteins

PURPOSE: We prospectively analyzed the clinical results of auto-iliac cancellous bone graft with autologous bone marrow mononucleated cell implantation for osteonecrosis of the femoral head. MATERIALS AND METHODS: In a prospective evaluation, 45 hips in 37 patients with osteonecrosis of the hip were treated with auto-iliac cancellous bone graft after core decompression combined with implantation of autologous bone marrow cells. The average duration of clinical follow up of the patients was 32 months. Core decompression of the femoral head was performed and most of the necrotic part of the head was removed. Auto-iliac cancellous bone grafting was then done to fill up the defect, and this was followed by cell therapy with implantation of autologous monocytes isolated from the iliac bone marrow. RESULTS: The mean Merle d' Aubigne and Postel score improved from 11.6 points preoperatively to 15.5 points. Collapse of the femoral head developed in 13 hips, of which 12 hips showed an extensive lesion on the preoperative radiogram. Total hip replacement surgery was performed in 9 hips: 8 hips were due to progressive collapse of the femoral head with clinical deterioration, and 1 hip was due to postoperative bacterial infection. The preoperative stages of the 8 hips that were converted to THRA were stage II in 1 hip, stage III in 4 hips and stage IV in 3 hips. The head preservation rate according to the preoperative stage was 94.4% in stage II, 77.8% in stage III and 66.7% in stage IV. CONCLUSION: Auto-iliac cancellous bone grafting combined with implantation of autologous bone marrow cells after core decompression showed a good clinical results on the short term follow-up. Long term follow-up studies are still necessary to validate this point.
Arthroplasty, Replacement, Hip ; Bacterial Infections ; Bone Marrow ; Bone Marrow Cells ; Bone Transplantation ; Decompression ; Follow-Up Studies ; Head ; Hip ; Humans ; Monocytes ; Osteonecrosis ; Prospective Studies ; Tissue Therapy ; Transplants

PURPOSE: To investigate the reproducibility of the conventional and digital radiographs to determine the depth of approximal root cavities. MATERIALS AND METHODS: A total of 80 artificial root cavities were prepared in the approximal surfaces of premolars, maxillary and mandibular molars. Standardized radiographs were taken at the baseline (0 horizontal and 0 vertical) and at a horizontal angulation of 10 in both mesial and distal directions. Radiographic cavity depths were measured by both conventional and digital radiographs. RESULTS: At 0 horizontal angulation, no statistically significant differences could be determined between the results of conventionally and digitally determined radiographic depths with respect to the actual cavity depths in all premolar, maxillary, and mandibular molar groups. All conventional and digital radiographic depths at both 10 mesial and distal angulations showed statistically significant increases in depth compared to the actual cavity depths (p< 0.05), with the exception of digital radiographic depth at 10 mesial angulation for premolars. There were no statistically significant differences between conventional and digital radiographic depths for all groups. CONCLUSION: The present study suggests that both conventional and digital radiographs provide reproducible assessment of the depth of the approximal root cavity. But horizontal X-ray beam movements are likely to result in increase in radiographic cavity depth.
Bicuspid ; Dental Caries ; Molar ; Radiography

Background: Hydroxyethyl starch (HES, 6% 130/0.4) has been used as a volume expander for the treatment of cerebral hypoperfusion in acute ischemic stroke. Although HES use was associated with renal failure in sepsis or critical illness, it still remains to be elucidated whether HES is linked to renal adverse events in patients with acute ischemic stroke. Methods: A total of 524 patients with acute ischemic stroke within 7 days of onset were included between January 2012 and May 2016. Renal function on admission and follow-up on day 7 ± 2 was assessed using serum creatinine (SCr) and estimated glomerular filtration rate (eGFR). Propensity score matching (PSM) was used to perform a 1:1 matched-pair analysis to minimize the group differences caused by covariates. The percentage of patients with newonset acute renal injury (AKI) using the Kidney Disease: Improving Global Outcomes or good functional outcome (modified Rankin Scale 0–2) at 90 days were compared between HES cohort and controls. Results: Among the included patients (mean age, 68.6 years; male, 56.5%), 81 patients (15.5%) were HES cohort (median cumulative dose, 1,450 mL). Baseline renal function was better in HES cohort compared to that in the controls (SCr, 0.87 ± 0.43 mg/dL vs. 1.15 ± 1.15 mg/dL, P < 0.001; eGFR, 86.91 ± 24.27 mL/min vs. 74.55 ± 29.58 mL/min, P < 0.001), which became not significant in PSM cohort (72 pairs). The percentage of new-onset AKI did not differ between the HES cohort and controls (1.4% vs. 1.4%, P = 1.000). In addition, newonset AKI was not related to HES (odds ratio, 1.422; 95% confidence interval, 0.072–28.068; P = 0.817) after adjusting for confounders. HES cohort tended to have higher percentage of good functional outcome at 90 days compared to controls, which failed to reach statistical significance (68.1% vs. 54.2%, P = 0.087). Conclusion A low cumulative dose of HES was not associated with renal adverse events in patients with acute ischemic stroke.

Quercetin is a natural flavonoid phytochemical that is extracted from various plants. Having an advantages due to its varied biological properties, such as anti-inflammatory, anti-viral, anti-oxidant, and anti-cancer effects, quercetin is used to treat many diseases. Recently, it has been reported that autophagy inhibition may play a key role in anti-cancer therapy. Therefore, in this study, we investigated the molecular mechanisms and anti-cancer effects of quercetin in human osteosarcoma cells via autophagy inhibition. We ascertained that quercetin inhibited cell proliferation and induced cell death, these process is demonstrated that apoptosis via the mitochondrial pathway and the caspase cascade. Quercetin also induced autophagy which was inhibited by 3-MA, autophagy inhibitor and the blockade of autophagy promoted the quercetin-induced apoptosis, confirming that autophagy is a pro-survival process. Thus, these findings demonstrate that quercetin is an effective anti-cancer agent, and the combination of quercetin and an autophagy inhibitor should enhance the effect of anti-cancer therapy.
Apoptosis* ; Autophagy* ; Cell Death ; Cell Proliferation ; Humans ; Osteosarcoma* ; Quercetin*

Bile acids and synthetic bile acid derivatives induce apoptosis in various kinds of cancer cells and thus have anticancer properties. Recently, it has been suggested that autophagy may play an important role in cancer therapy. However, few data are available regarding the role of autophagy in oral cancers and there have been no reports of autophagic cell death in OSCCs (oral squamous cell carcinoma cells) induced by HS-1200, a synthetic bile acid derivative. We thus examine whether HS-1200 modulates autophagy in OSCCs. Our findings indicate that HS-1200 has anticancer effects in OSCCs, and we observed in these cells that autophagic vacuoles were visible by monodansylcadaverine (MDC)and acridine orange staining. When we analyzed HS-1200-treated OSCC cells for the presence of biochemical markers, we observed that this treatment directly affects the conversion of LC-3II, degradation of p62/SQSTM1 and full-length beclin-1, cleavage of ATG5-12 and the activation of caspase. An autophagy inhibitor suppressed HS-1200-induced cell death in OSCCs, confirming that autophagy acts as a pro-death signal in these cells. Furthermore, HS-1200 shows anticancer activity against OSCCs via both autophagy and apoptosis. Our current findings suggest that HS-1200 may potentially contribute to oral cancer treatment and thus provide useful information for the future development of a new therapeutic agent.
Acridine Orange ; Apoptosis ; Autophagy ; Bile ; Bile Acids and Salts ; Biomarkers ; Cadaverine ; Carcinoma, Squamous Cell ; Cell Death ; Chenodeoxycholic Acid ; Mouth Neoplasms ; Vacuoles

Chios Gum Mastic (CGM) is a natural resin extracted from the leaves of Pistacia lentiscus, a plant endemic to the Greek island of Chios. It has been used by traditional healers, and it has antibacterial, antifungal properties, and therapeutic benefits for the skin. The CGM reduces the formation of dental plaque and bacterial growth in oral saliva, and recent studies have demonstrated the role of antioxidant activity of CGM. Although CGM has been widely investigated, its protective effect against oxidative-damage to keratinocytes, as well as the relationship between CGM and autophagy, has not been investigated. The aim of this study was to assess the protective effect of CGM against H2O2-induced oxidative stress and to evaluate the autophagic features induced by CGM in human keratinocytes. The pretreatment with CGM significantly reduced apoptosis in H2O2-exposed HaCaT cells. It promoted the degradation of caspase-3, caspase-8, and caspase-9; and it induced the formation of the processed PARP. The treatment with CGM caused an increase in vesicle formation compared to control group. The level of p62 was reduced and the conversion of LC3-I to LC3-II was increased in CGM treated HaCaT cells. Also, the treatment with CGM increased cleavage of ATG5-ATG12 complex. In summary, CGM helps the cells to survive under stressful conditions by preventing apoptosis and enhancing autophagy. Besides, the present investigation provides evidence to support the antioxidant potential of CGM in vitro and opens up a new horizon for future experiments.
Apoptosis ; Autophagy* ; Caspase 3 ; Caspase 8 ; Caspase 9 ; Dental Plaque ; Gingiva* ; Humans ; Keratinocytes ; Oxidative Stress* ; Pistacia ; Plants ; Saliva ; Skin

PURPOSE: The objective of this study was to assess attenuation correction algorithms with the 137Cs point source for the brain positron emission tomography (PET) imaging process. MATERIALS AND METHODS: Four different types of phantoms were used in this study for testing various types of the attenuation correction techniques. Transmission data of a 137Cs point source were acquired after infusing the emission source into phantoms and then the emission data were subsequently acquired in 3D acquisition mode. Scatter corrections were performed with a background tail-fitting algorithm. Emission data were then reconstructed using iterative reconstruction method with a measured (MAC), elliptical (ELAC), segmented (SAC) and remapping (RAC) attenuation correction, respectively. Reconstructed images were then both qualitatively and quantitatively assessed. In addition, reconstructed images of a normal subject were assessed by nuclear medicine physicians. Subtracted images were also compared. RESULTS: ELAC, SAC, and RAC provided a uniform phantom image with less noise for a cylindrical phantom. In contrast, a decrease in intensity at the central portion of the attenuation map was noticed at the result of the MAC. Reconstructed images of Jaszack and Hoffan phantoms presented better quality with RAC and SAC. The attenuation of a skull on images of the normal subject was clearly noticed and the attenuation correction without considering the attenuation of the skull resulted in artificial defects on images of the brain. CONCLUSION: the complicated and improved attenuation correction methods were needed to obtain the better accuracy of the quantitative brain PET images.
Brain ; Noise ; Nuclear Medicine ; Positron-Emission Tomography ; Skull