The PHD finger is a Zn-binding domain found in all eukaryotic genomes, and typically show a C4HC3 signature. Notably, many if not all PHD fingers are found in nuclear proteins whose functions are associated with the regulation of transcription, cell cycle and apoptosis. Increasingly evidences suggest that the PHD finger has multiple functions, including the protein-protein interaction, especially interact with nucleosomes. The pattern and combination of histone modifications, for example, methylation, acetylation, phosphorylation and ubiquitination etc, have been believed to be an important regulator of gene expression and state of the chromatin, which have raised the histone code hypothesis. With the feature of specific recognizing methylated histone, the PHD finger may functions as an important reader of the histone code.

Objective To evaluate the measurement of kappa and lambda immunoglobulin free light chains(FLC) in patient samples using a new enzyme-linked immunosorbent assay for early diagnosis of multiple myeloma.Methods An ELISA method for quantifying kappa and lambda free light chains were used to study serum and urine samples from patients with multiple myeloma, and the results were compared with those obtained using immunofixation electrophoresis and nephelometric immunoassay methods. Results The FLC-ELISA method had great successful rate in identifying the multiple myeloma in all 40 myeloma patients. In contrast,immunofixation electrophoresis and nephelometric immunoassay could only identify 57.5% and 85.5% of the multiple myeloma in all the myeloma patients,respectively. Furthermore, retrospective diagnosis of specimens obtained from patient indicated that the ELISA method could help early diagnosis of the disease by over two years. Conclusion The ELISA method for measuring free light chains is sensitive, accurate and reproducible. Therefore it is a useful tool for early diagnosis of multiple myeloma,monitoring the disease progression and evaluating treatment responses.

OBJECTIVE: To discuss the application of frontal sinus optical probe in endoscopic frontal sinus surgery. METHOD: The clinical data of 58 adult patients (86 sides) suffering from chronic frontal sinusitis were analyzed retrospectively. The patients received endoscopic frontal sinus surgery with frontal sinus optical probe because of difficulty in confirming ostia under endoscope. All cases were followed up post operation to evaluate the efficacy. RESULT: The ostia of frontal sinus were successfully opened with this method in all cases, and no serious intracranial or orbital complication occurred. After 6 to 18 months follow-up postoperatively, the symptoms vanished in 51 cases and improved in 7 cases and none of all recurred. The endoscopic examinations showed well opening of frontal sinus ostia. CONCLUSION Localization of frontal ostium with frontal sinus optical probe is a simple, convenient, safe and effective accessorial method for revision endoscopic frontal sinus surgery.
Adult ; Aged ; Endoscopy ; methods ; Female ; Follow-Up Studies ; Frontal Sinus ; surgery ; Frontal Sinusitis ; surgery ; Humans ; Male ; Middle Aged ; Retrospective Studies

Objective: To explore the sensitization effects of resveratrol on CNE2 nasopharyngeal carcinoma cell line with hypoxia-induced chemotherapy resistance and the potential mechanism. Methods: Human CNE2 nasopharyngeal carcinoma cell line was cultured under hypoxic conditions (37 degrees centigrade, 5% CO(2), 2% O(2)) in vitro. The cultured cells were treated with different concentrations of resveratrol for 48 h. Reversal fold (RF) of reseratrol to chemotherapeutic drugs in CNE2 cells was measured by methyl thiazolyl tetrazolium (MTT) assay. Apoptotic rate of CNE2 cells was observed by flow cytometry. Reverse transcription-polymerase chain reaction (RT-PCR) method and Western blotting were used to investigate the expressions of multidrug resistance gene 1 (mdr1), multidrug resistance-associated protein 1 (MRP1) and hypoxia inducible factor 1alpha (HIF-1alpha) in CNE2 cells. Results: Resveratrol combined with chemotherapeutics produced a synergistic effect. The RF of 200 alphamol/L resveratrol to paclitaxel was 2.58. Combined with paclitaxel, 25, 50, 100 and 200 alphamol/L of resveratrol increased the apoptotic rate of CNE2 cells from (22.14+/-1.09)% to (23.24+/-1.37)%, (27.57+/-2.01)%, and (30.36+/-2.31)%, respectively. Resveratrol could down-regulate the expressions of HIF-1alpha, mdr1 and MRP1 significantly. After being treated with resveratrol at different concentrations separately, the expressions of HIF-1alpha, mdr1 and MRP1 in CNE2 cells decreased significantly as compared with paclitaxel alone or paclitaxel plus verapamil (P<0.01). Conclusion: Resveratrol can enhance the sensitivity of CNE2 cells to chemotherapeutic drugs under hypoxia. The potential mechanism is partly attributed to inhibiting the gene expressions of HIF-1alpha, mdr1 and MRP1.

Objective: To investigate psychological and behavioral responses and the prevalence of acute stress disorder (ASD) among the injured from a serious road traffic accident. Methods: The injured persons at ages of 7 years and older from a serious road traffic accident were enrolled, and individuals with severe injury were exclude. Participants' gender, age, educational level, marital status, injury severity, family member's injury and death during the accident and psychological and behavioral status were collected. The prevalence of ASD was estimated using a semi-structured interview and the ASD Scale, and the factors affecting the development of ASD were identified using a multivariable logistic regression model. Results: A total of 132 survivors participated in psychological crisis assessment, including 82 men (62.12%) and 50 women (37.88%) and with a mean age of (46.50±18.57) years. There were 6 participants without obvious trauma (4.54%), 113 with mild injury (85.61%) and 13 with moderate injury (9.85%), and there were 6 participants with death of their family members during this accident. Insomnia, anxiety, flashback and fear were predominant psychological and behavioral responses, with prevalence rates of 42.42%, 35.58%, 26.52% and 23.48%, respectively. The prevalence of ASD was 30.30% among participants, and a higher rate of ASD was detected among women than among men (52.00% vs. 17.07%; χ2=17.940, P<0.001). The detection of ASD was higher among participants with death of their family members than among those without death of their family members (83.33% vs. 26.98%; χ2=8.370, P=0.004), and a higher detection rate of ASD was seen among participants with moderate injury (61.54%; χ2=6.786, P=0.034). Multivariable logistic regression analysis showed a higher risk of ASD among females (OR=7.764, 95%CI: 3.187-18.915) and those with a high educational level (high school/technical secondary school, OR=6.896, 95%CI: 1.030-46.152; diploma and above, OR=71.583, 95%CI: 4.145-1 236.270). Conclusions Insomnia and anxiety are predominant psychological and behavioral responses following serious road traffic accidents, and women and individuals with a high educational level present a high risk of ASD, which requires to be given timely psychological crisis interventions.

OBJECTIVETo evaluate the curative effects of manipulative reduction for children's type III humeral supracondylar fracture and the preventions of ischemic contracture of forearm in the early period.

METHODSFrom September 2008 to September 2011, 38 patients with humeral supracondylar fractures were treated with manipulative reduction and plaster stabilization, including 20 males and 18 females with an average age of 7.5 years (ranged, 2 to 13 years); the average time from injury to visit was 1.8 days(ranged,0.5 h to 6 d). There were 21 cases in straighten-ulnar deviation type and 17 cases in straighten-radial deviation type, 1 case in flexion type,all of them without vascular nerve injury. It was important to process swelling correctly in early stage of fracture. To decide fixed position according to the original displacement, and make a regular X-ray review, if found another displacement to correct it in 1-2 weeks after injury in time. Dismantle the plaster on the basis of bone healing and guide the functional exercise of elbow joint. According to Dodgt standard to evaluate clinical effects.

RESULTSAll patients were followed up from 3 months to 1 year with an average of 7 months. All fractures healed. According to Dodgt standard, 14 patients got an excellent results, 19 good, 4 fair and 1 poor. The excellent and good rate was 86.84%.

CONCLUSIONIt can obtain satisfactory clinical effects to treat humeral supracondylar fracture in children with closed manipulative reduction and plaster stabilization, while without vascular nerve injury. Early correct processing swelling and paying attention to gypsous angle can effectively prevent the ischemic contracture of forearm.

Adolescent ; Casts, Surgical ; Child ; Child, Preschool ; Female ; Forearm ; blood supply ; Humans ; Humeral Fractures ; therapy ; Ischemic Contracture ; prevention & control ; Male ; Manipulation, Orthopedic

OBJECTIVE: To investigate the effect of ziprasidone and olanzapine on glucose and lipid metabolism in first-episode schizophrenia. METHODS: A total of 260 schizophrenics were assigned randomly to receive ziprasidone or olanzapine for 6 weeks. The weight was measured at baseline, week 2, 4 and 6. Fasting blood glucose (FBS), fasting insulin, high-density lipoprotein (HDL), total-cholesterol (TC) and triglycerides (TG) were measured at baseline and the end of 6-week treatment. Low-density lipoprotein (LDL) was measured in some patients at baseline and the end of 6-week treatment. Body mass index (BMI) and insulin resistance index (IRI) were counted. RESULTS: A total of 245 patients completed the trial, including 121 ziprasidone patients and 124 olanzapine patients. The average dose was 137.5 mg/d for ziprasidone and 19.5 mg/d for olanzapine. Patients treated with olanzapine had higher weight gain than those treated with ziprasidone [(4.55±3.37) kg vs (-0.83±2.05) kg, P<0.001]. After the treatment, FBS, fasting insulin, HDL, TC, TG, LDL and IRI levels were significantly increased in the olanzapine group (all P values<0.001 ). However, in the ziprasidone group, FBS decreased significantly and HDL and TG levels increased significantly after the 6-week treatment (all P values<0.05). The mean changes of FBS, fasting insulin, TC, TG, LDL and IRI were significantly different in the two groups (all P values<0.001). CONCLUSION Ziprasidone has less glucose and lipid metabolic effect for first-episode schizophrenia patients in short-term treatment. However, olanzapine induces weight gain and dysfunction of glucose and lipid metabolism significantly, which is associated with increased risk of complications. When the doctors choose antipsychotics in the clinic, they should consider the side effects of the medication.
Adolescent ; Adult ; Benzodiazepines ; adverse effects ; therapeutic use ; Blood Glucose ; drug effects ; Female ; Humans ; Lipid Metabolism ; drug effects ; Male ; Middle Aged ; Olanzapine ; Piperazines ; adverse effects ; therapeutic use ; Schizophrenia ; drug therapy ; Thiazoles ; adverse effects ; therapeutic use ; Young Adult

Objective To investigate the mechanism of the interaction between miR-9-5p and tissue metalloproteinase inhibitor 2(TIMP2)on autophagy and apoptosis in multiple myeloma(MM)cells.Methods Real-time fluorescence quantitative PCR(qRT-PCR)was used to detect expression levels of miR-9-5p and TIMP2 in bone marrow samples of 9 patients with newly diagnosed MM and 9 patients with recurrent MM.The correlation of expression levels between the two were analyzed.U266 cells were divided into the miR-control group,the miR-9-5p group,the pcDNA3.1 group,the pcDNA3.1-TIMP2 group,the miR-9-5p+pcDNA3.1 group,and the miR-9-5p+pcDNA3.1-TIMP2 group.The effects of overexpressed miR-9-5p and TIMP2 on autophagy and apoptosis in U266 cells were detected by flow cytometry,immunofluorescence staining and Western blot experiments.The dual luciferase report experiment verified the interaction between miR-9-5p and TIMP2.Results Compared with newly diagnosed MM patients,the expression level of miR-9-5p was increased and the expression level of TIMP2 was decreased in patients with recurrent MM.The expression levels of miR-9-5p and TIMP2 were negatively correlated(P<0.05).Compared with the miR-control group,the miR-9-5p group showed a decrease in the expression level of MAP1LC3B-Ⅱ,an increase in expression levels of MAP1LC3B-Ⅰ and SQSTM1,and a decrease in cell apoptosis rate(P<0.05).Compared with the pcDNA3.1 group,the expression level of MAP1LC3B-Ⅱ was increased in the pcDNA3.1-TIMP2 group,while the expression levels of MAP1LC3B-Ⅰ and SQSTM1 were decreased,and the apoptosis rate of cells increased(P<0.05).Bioinformatics and dual luciferase reporter experiments confirmed that TIMP2 was the target gene of miR-9-5p.Conclusion miR-9-5p inhibits autophagy and apoptosis in MM cells by targeting TIMP2,thereby promoting the occurrence and development of MM.

OBJECTIVETo study the radiosensitizing effect of resveratrol on human hypo pharyngeal squamous cell carcinoma (FaDu) cells in nude mice.

METHODSForty-three nude mice bearing FaDu cell xenografts were randomized into control group, radiotherapy (12 Gy) group, resveratrol treatment (50 mg/kg) group, and radiotherapy plus resveratrol treatment group. After corresponding treatments, the tumor volume in the mice was measured every 3 days, and the microvessel density (MVD) in the tumor was evaluated with CD31 immunofluorescence histochemical staining.

RESULTSThe tumor volume and weight were the smallest in mice receiving radiotherapy plus resveratrol treatment (P<0.05) but comparable between those having resveratrol treatment alone and the control mice. Radiotherapy plus resveratrol treatment resulted in a tumor inhibition rate of 76.64% and a significantly decreased MVD in the tumor compared with the other 3 groups.

CONCLUSIONResveratrol can produce a radiosensitizing effect on human hypopharyngeal carcinoma in nude mice.

Animals ; Carcinoma, Squamous Cell ; drug therapy ; radiotherapy ; Cell Line, Tumor ; radiation effects ; Head and Neck Neoplasms ; drug therapy ; radiotherapy ; Humans ; Hypopharyngeal Neoplasms ; drug therapy ; radiotherapy ; Mice ; Mice, Nude ; Radiation Tolerance ; Radiation-Sensitizing Agents ; pharmacology ; Stilbenes ; pharmacology ; Transplantation, Heterologous ; Tumor Burden

Objective To study the radiosensitizing effect of resveratrol on human hypo pharyngeal squamous cell carcinoma (FaDu) cells in nude mice. Methods Forty-three nude mice bearing FaDu cell xenografts were randomized into control group, radiotherapy (12 Gy) group, resveratrol treatment (50 mg/kg) group, and radiotherapy plus resveratrol treatment group. After corresponding treatments, the tumor volume in the mice was measured every 3 days, and the microvessel density (MVD) in the tumor was evaluated with CD31 immunofluorescence histochemical staining. Results The tumor volume and weight were the smallest in mice receiving radiotherapy plus resveratrol treatment (P<0.05) but comparable between those having resveratrol treatment alone and the control mice. Radiotherapy plus resveratrol treatment resulted in a tumor inhibition rate of 76.64% and a significantly decreased MVD in the tumor compared with the other 3 groups. Conclusion Resveratrol can produce a radiosensitizing effect on human hypopharyngeal carcinoma in nude mice.