No abstract available.
Animals ; Calcium Channels* ; Calcium* ; Rats*

PURPOSE: To assess the accuracy of intraocular lens (IOL) power prediction for cataract surgery with open angle glaucoma (OAG) and to identify preoperative angle parameters correlated with postoperative unpredicted refractive errors. MATERIALS AND METHODS: This study comprised 45 eyes from 45 OAG subjects and 63 eyes from 63 non-glaucomatous cataract subjects (controls). We investigated differences in preoperative predicted refractive errors and postoperative refractive errors for each group. Preoperative predicted refractive errors were obtained by biometry (IOL-master) and compared to postoperative refractive errors measured by auto-refractometer 2 months postoperatively. Anterior angle parameters were determined using swept source optical coherence tomography. We investigated correlations between preoperative angle parameters [angle open distance (AOD); trabecular iris surface area (TISA); angle recess area (ARA); trabecular iris angle (TIA)] and postoperative unpredicted refractive errors. RESULTS: In patients with OAG, significant differences were noted between preoperative predicted and postoperative real refractive errors, with more myopia than predicted. No significant differences were recorded in controls. Angle parameters (AOD, ARA, TISA, and TIA) at the superior and inferior quadrant were significantly correlated with differences between predicted and postoperative refractive errors in OAG patients (-0.321 to -0.408, p<0.05). Superior quadrant AOD 500 was significantly correlated with postoperative refractive differences in multivariate linear regression analysis (β=-2.925, R²=0.404). CONCLUSION: Clinically unpredicted refractive errors after cataract surgery were more common in OAG than in controls. Certain preoperative angle parameters, especially AOD 500 at the superior quadrant, were significantly correlated with these unpredicted errors.
Biometry ; Cataract* ; Glaucoma, Open-Angle* ; Humans ; Iris ; Lenses, Intraocular ; Linear Models ; Myopia ; Refractive Errors* ; Tomography, Optical Coherence

Solitary fibrous tumors (SFT) are rare spindle-cell neoplasms that are found principally in the pleura, and extrathoracic SFTs are even less common. We report here on a case of malignant solitary fibrous tumor in the perianal region. A 47-year-old man was referred to our hospital for surgical treatment of an incidentally discovered perianal mass. Pelvic MRI showed a slightly lobulated solid mass with central necrosis in the ischiorectal fossa. We performed complete removal of tumor with using a postanal approach. The resected specimen was 6.5x5.0x5.0 cm in size, and it was an elastic solid tumor with invasion to the surrounding muscle structures. Histologically, the tumor was composed of a patternless proliferation of spindle cells with a collagenous matrix and the tumor cells showed increased cellularity, cellular pleomorphism and frequent mitotic figure. Immunohistochemical staining was positive for CD34 and negative for desmin, which indicated malignant SFT. We report here on a rare case of malignant SFT in the perianal region along with a review of the literature.
Collagen ; Desmin ; Humans ; Magnetic Resonance Imaging ; Middle Aged ; Necrosis ; Pleura ; Solitary Fibrous Tumors*

OBJECTIVE: To assess the usefulness of a pressure algometer to measure pressure pain threshold (PPT) for diagnosis of myofascial pain syndrome (MPS) in the upper extremity and trunk muscles. METHOD: A group of 221 desk workers complaining of upper body pain participated in this study. Five physiatrists made the diagnosis of MPS using physical examination and PPT measurements. PPT measurements were determined for several muscles in the back and upper extremities. Mean PPT data for gender, side, and dominant hand groups were analyzed. Sensitivity and specificity of Fischer's standard method were evaluated. PPT cut-off values for each muscle group were determined using an ROC curve. RESULTS: Cronbach's alpha for each muscle was very high. The PPT in men was higher than in females, and the PPT in the left side was higher than in the right side for all muscles tested (p<0.05). There was no significant difference in PPT for all muscles between dominant and non-dominant hand groups. Diagnosis of MPS based on Fischer's standard showed relatively high specificity and poor sensitivity. CONCLUSION: The digital pressure algometer showed high reliability. PPT might be a useful parameter for assessing a treatment's effect, but not for use in diagnosis or even as a screening method.
Female ; Hand ; Humans ; Male ; Mass Screening ; Muscles ; Myofascial Pain Syndromes ; Pain Threshold ; Physical Examination ; Sensitivity and Specificity ; Upper Extremity

Bullous pemphigoid may, very rarely, occur in infants, although it is usually a bullous disease of the elderly which is characterized by subepidermal bullae on erythematous and normal skin. We describe an infant with severe subepidermal blistering disorder with typical features for bullous pemphigoid.
Aged ; Blister ; Humans ; Infant* ; Pemphigoid, Bullous* ; Skin

Although continuous low-dose (metronomic [MET]) therapy exerts anti-cancer efficacy in various cancer models, the effect of long-term MET therapy for hepatocellular carcinoma (HCC) remains unknown. This study assessed the long-term efficacy of MET on suppression of tumor growth and spontaneous metastasis in a rat model of HCC induced by administration of diethylnitrosamine for 16 wk. The rats were divided into 3 groups: MTD group received intraperitoneal (i.p.) injections of 40 mg/kg cyclophosphamide on days 1, 3, and 5 of a 21-day cycle; Control and MET groups received i.p. injections of saline and 20 mg/kg cyclophosphamide twice a week, respectively. Anti-tumor and anti-angiogenic effects and anti-metastatic mechanisms including matrix metalloproteinases (MMPs) and tissue inhibitors of MMPs (TIMPs) were evaluated. Twelve wk of MET therapy resulted in a significant reduction in intrahepatic tumors than control or MTD therapy. The MET group had fewer proliferating cell nuclear antigen-positive cells and decreased hypoxia-inducible factor-1alpha levels and microvessel density. Lung metastases were detected in 100%, 80%, and 42.9% in the control, MTD, and MET groups, respectively. MET therapy significantly decreased expression of TIMP-1, MMP-2 and -9. For mediators of pro-MMP-2 activation, MET therapy induced significant suppression in the TIMP-2 and MMP-14 level. The survival in the MET group was significantly prolonged compared to the control and MTD groups. Long-term MET scheduling suppresses tumor growth and metastasis via its potent anti-angiogenic properties and a decrease in MMPs and TIMPs activities. These results provide a rationale for long-term MET dosing in future clinical trials of HCC treatment.
Animals ; Antineoplastic Agents/*administration & dosage/*pharmacology ; Carcinoma, Hepatocellular/chemically induced/*drug therapy/mortality/pathology ; Cell Proliferation/drug effects ; Cyclophosphamide/*administration & dosage/*pharmacology ; Diethylnitrosamine ; Disease Models, Animal ; Gene Expression Regulation, Neoplastic/*drug effects ; Liver Cirrhosis/chemically induced ; Liver Neoplasms/chemically induced/*drug therapy/mortality/pathology ; Lung Neoplasms/drug therapy/pathology/secondary ; Male ; Matrix Metalloproteinases/metabolism ; Neovascularization, Pathologic/enzymology/physiopathology ; Rats ; Rats, Sprague-Dawley ; Survival Analysis ; Tissue Inhibitor of Metalloproteinases/metabolism ; Tumor Burden/drug effects

Immunoglobulin A (IgA) pemphigus is a rare variant of an autoimmune bullous disease with IgA antibodies. IgA pemphigus is divided into 2 major subtypes: the subcorneal pustular dermatosis (SPD) type and intraepidermal neutrophilic (IEN) dermatosis type. We documented a case of an 18-year-old woman with recurrent generalized blisters and pustules that were especially severe in the intertriginous areas. Some half-and-half blisters and coalesced pustules in an annular pattern with crusts were simultaneously observed. A biopsy specimen from one of the half-and-half blister lesions showed intraepidermal separation with multiple neutrophils. Direct immunofluorescence staining revealed lace-like intercellular deposition of IgA in the entire epidermis. IgA antibody deposits were also observed in the patient's serum. The eruptions cleared with systemic steroids and colchicine 0.6 mg for 1 week, and the patient remained in partial remission at the 8-month follow-up. Herein, we report a case of IEN-type IgA pemphigus, clinically mimicking SPD with half-and-half blisters.
Adolescent ; Antibodies ; Biopsy ; Blister ; Colchicine ; Epidermis ; Female ; Fluorescent Antibody Technique, Direct ; Follow-Up Studies ; Humans ; Immunoglobulin A ; Immunoglobulins ; Neutrophils ; Pemphigus ; Skin Diseases ; Skin Diseases, Vesiculobullous ; Steroids

A 79-year-old woman was admitted to our hospital for shoulder pain. A physical examination revealed a tender right shoulder with limitation of active, and preservation of passive, motion. She had undergone a cerebral angiography with coil embolization two months prior to admission. After the procedure, she was presented with pain in the right upper arm and shoulder. Due to persistent shoulder pain, an MRI of the shoulder was performed, and osteonecrosis of the humeral head was detected. We present a case of osteonecrosis of the humeral head after cerebral angiography.
Aged ; Arm ; Cerebral Angiography* ; Embolization, Therapeutic ; Female ; Humans ; Humeral Head* ; Magnetic Resonance Imaging ; Osteonecrosis* ; Physical Examination ; Shoulder ; Shoulder Pain

BACKGROUND: Bovine pericardium is one of the most widely used materials in bioprosthetic heart valves. Immunologic responses have been implicated as potential causes of limited durability of xenogenic valves. This study aimed to determine the effectiveness of decellularization and alpha-galactosidase (alpha-gal) to remove major xenoreactive antigens from xenogenic tissues. MATERIALS AND METHODS: Recombinant Bacteroides thetaiotaomicron (B. thetaiotaomicron) alpha-gal or decellularization, or both were used to remove alpha-gal from bovine pericardium. It was confirmed by alpha-gal-bovine serum albumin-based enzyme-linked immunosorbent assay (ELISA), high-performance anion exchange chromatography, flow cytometry, 3,3'-diaminobenzidine-staining, and lectin-based ELISA. The mechanical properties of bovine pericardium after decellularization or alpha-gal treatment were investigated by tests of tensile-strength, permeability, and compliance. Collagen fiber rearrangement was also evaluated by a 20,000x transmission electron microscope (TEM). RESULTS: Recombinant B. thetaiotaomicron alpha-gal could effectively remove alpha-gal from bovine pericardium B. thetaiotaomicron (0.1 U/mL, pH 7.2) while recombinant human alpha-gal removed it recombinant human alpha-gal (10 U/mL, pH 5.0). There was no difference in the mechanical properties of fresh and recombinant alpha-gal-treated bovine pericardium. Furthermore, the TEM findings demonstrated that recombinant alpha-gal made no difference in the arrangement of collagen fiber bundles with decellularization. CONCLUSION: Recombinant B. thetaiotaomicron alpha-gal effectively removed alpha-gal from bovine pericardium with a small amount under physiological conditions compared to human recombinant alpha-gal, which may alleviate the harmful xenoreactive immunologic responses of alpha-gal. Recombinant alpha-gal treatment had no adverse effects on the mechanical properties of bovine pericardium.
alpha-Galactosidase ; Bacteroides ; Bioprosthesis ; Chromatography ; Collagen ; Compliance ; Electrons ; Enzyme-Linked Immunosorbent Assay ; Epitopes ; Flow Cytometry ; Heart Valves ; Humans ; Hydrogen-Ion Concentration ; Pericardium ; Permeability ; Tissue Engineering

The radial forearm free flap (RFFF) is a thin and pliable tissue with many advantages for tongue reconstruction. However, tongues reconstructed with RFFF occasionally need revision surgery because inadequate defect measurement at primary surgery can lead to bulkiness and limited movement of reconstructed tongue. In this case, the patient underwent partial glossectomy and RFFF reconstruction for treatment of tongue cancer five years prior. We could not make a lower denture for the patient, because the alveolo-lingual sulcus of tongue was almost lost. So we performed vestibuloplasty with a modified Kazanjian method on the lingual vestibule of the mandibular right posterior area, and defatting surgery to debulk the flap. After surgery, we observed that the color and texture of the revised tongue changed to become similar with adjacent tissue. The patient obtained a more functional and esthetic outcome. Accordingly, we present a case report with a review of relevant literature.
Dentures ; Forearm ; Free Tissue Flaps ; Glossectomy ; Humans ; Tongue Neoplasms ; Tongue* ; Vestibuloplasty*