Objective To investigate the recognition of cyclomastopathy in female college students in Guangzhou.Method 300 female college students(90 medical students and 210 non-medical students)from 10 colleges in Guangzhou were involved in the survey using the self-designed questionnaire.Results Medical students had significantly higher recognition about cyclomastopathy than non-medical students(all P<0.05).The college students lacked of awareness of self breast care.Only 15.56%of the medical students and 11.43% of the non-medical students regularly took breast self-care.Conclusion To improve the social,school and students pay more attention to the breast diseases,strengthen the female university students about breast health education,has improtant significance for improving college students' knowledge of disease of mammary gland hyperplasia.

Objective To construct and identify the Eukaryotic expression vector of RNAi hTRET. Methods The hRERT interference sequence was synthesized by artificial way and was directed cloning to the Eukaryotic expression vector pSilencer 3.1 H1 neo,and was identified by pcr,enzyme cutting,sequencing,determining its concentration and purity. Results We construct the Eukaryotic expression vector of RNAi hTRET successfully. Conclusion Construction of Eukaryotic expression vector of RNAi hTRET established foundation for biological effectiveness of telomere and telomerase in cancer cells.

Objective To describe the retroperitoneal laparoscopy-assisted Anderson-Hynes dismembered pyeloplasty with small incision for the treatment of ureteropelvic junction obstruction (UPJO) and to evaluate its clinical effect. Methods Twelve cases of UPJO (8 men and 4 women;age range,5-48 years) underwent retroperitoneal laparoscopy-assisted, small incision,dismembered pyeloplasty.Of them,4 cases had severe hydronephrosis;6,intermediate;and 2,mild by B-ultrasound and urography.Nine cases had good IVU imaging and 3 had poor IVU imaging. Results All the procedures were successful.The operative time was 100-180 min (mean,127 min);the blood loss was 30-100 ml(mean,70 ml) and the postoperative hospitalization was 5-8 d (mean,5.6 d).No perioperative complication occurred.Follow-up of 3-12 months by intravenous urography and B-ultrasound showed no stricture at UPJ,and hydronephrosis was remitted and renal functions were improved. Conclusions Retroperitoneal laparoscopy-assisted Anderson-Hynes dismembered pyeloplasty with small incision is a feasible,minimally invasive and effective way to treat UPJO with less morbidity and shorter convalescence.

Objective:To investigate the competency of informed consent in new admitted schizophrenia pa-tients.Methods:Fifty-three patients who were consecutively admitted to the hospital and diagnosed as schizophrenia according to the International Statistical Classification of Diseases and Related Health Problems,Tenth Revision (ICD-10)were recruited and assessed in seventy-two hours.The competence of informed consent was assessed by the MacArthur Competence Assessment Tool-Treatment (MacCAT-T).The insight was assessed by the Insight and Treatment Attitude Questionnaire.The severity of illness was assessed by the Brief Psychiatric Rating Scale (BPRS).Correlations between the competence of informed consent and the factors mentioned above were discussed.Results:Forty-five (84.9%)patients had lower MacCAT-T scores,especially the scores of understand-ing dimension (1.58 ±1.85)and appreciation dimension (2.40 ±1.47).The competence of informed consent was significantly correlated with insight (r =0.73,P <0.01)but not correlated with age,education,duration of illness and BPRS scores.Logistic regression demonstrated that insight (OR =0.69)was a protective factor of competence of informed consent while thought disturbance (OR =1.39)was a risk factor.As to the involuntary admitted pa-tients,34.1% of them had competence of informed consent.Conclusion:The competence of informed consent in new admitted schizophrenia patients is widely impaired especially in understanding and appreciation dimension.The competence of informed consent is correlated with insight and thought disturbance.Voluntary or involuntary hospi-talization does not reflect the level of competence of informed consent.

Objective To investigate the feasibility and superiority of video-assisted thoracic surgery (VATS) in the diagnosis and treatment of chest trauma feasibility and superiority.Methods 60 cases were randomly selected and divided into the observation group (n =30) and control group (n =30) by random number table.The observation group was treated with VATS and the control group was treated with traditional methods.Incision length,after the first three days of pain,blood transfusion,closed drainage time,drainage,postoperative hospital stay,postoperative day 7 1S forced expiratory volume (FEV1) and other related indicators were compared between the two groups.Results Incision length of the observation group was (7.41 ± 5.52) cm,which was significantly shorter than (18.62 ± 4.11) cm of the control group (t =7.54,P ＜ 0.05).Amount of blood transfusion and drainage of the observation group were (199.88 ± 23.00) mL and (199.52 ± 18.48) mL,which were significantly less than (465.67 ± 41.88) mL and (560.02 ± 44.98) mL of the control group (t =6.38,6.98,all P ＜ 0.05).In the observation group patients after the first three days VAS score was (3.61 ±0.20) points,lower than (6.01 ±0.25) points of the control group (t =6.64,P ＜ 0.05).Postoperative hospital stay was (6.50 ± 0.45) d,shorter than (11.33 ± 0.50) d of the control group(t =7.95,P ＜0.05).Conclusion VATS has the advantages of intuitive and strong,trauma,pain,faster recovery,shorter hospital stay,less closed thoracic drainage,fewer complications and so on in chest injury diagnosis and treatment.

Nicotinamide adenine dinucleotide (NAD

Telomere is one of the basic functional elements for maintaining genome stability. Telomeres can become shorter due to cell divisions and environmental factors. Critically shortened telomeres eventually lead to cellular replicative senescence. Telomere length is an important parameter of telomere function, which determines the stability of chromosomes and the ability of cell proliferation. Currently multiple methods have been developed for the analysis of telomere length, including terminal restriction fragment (TRF) analysis, quantitative polymerase chain reaction (qPCR), single telomere length analysis (STE-LA), telomere shortest length assay (TeSLA) and telomere length combing assay (TCA) based on DNA, as well as quantitative fluorescence in situ hybridization (Q-FISH) based on cellular levels. Different analysis methods are applied to obtain different telomere relevant variables. In the review, we discuss the principle and application advantages of each telomere length analysis, which may help researchers select an optimal assessment approach to better address specific research questions about telomere in either model organisms or humans.

Objective The purpose of this study is to investigate the molecular mechanisms of p.C310R(c.T928C) and p.E396V(c.A1187T) lipoprotein lipase(LPL) gene mutations in vitro, which may help to construct the spectrum of LPL gene mutations and phenotype. It also can provide accurate early diagnosis for high-risk population of familial hypertriglyceridemia and provide the basis for the development of gene targeted therapy. Methods Genomic DNA was extracted from proband′s family members′ peripheral blood cells and screened by whole-exome sequencing to verify candidate gene variations. PCR products were afterwards directly sequenced again to confirm corresponding LPL variants. At the cellular level, lentiviruses containing LPL mutations were constructed and then transfected into COS-1 cells. Functional significance of the mutants was corroborated by analyzing LPL activity and mass in the cell medium and lysates via ELISA and enzyme-fluorescent method. mRNA was assayed by RT-PCR to confirm the effect on gene transcription. Results DNA sequence analysis revealed that the proband was a heterozygote for a novel c.T928C mutation in exon 6 of LPL gene, while his nephew was a compound heterozygote for the c.T928C mutation in exon 6 and a novel c.A1187T mutation in exon 8. In vitro studies, these two mutations can cause decreased activity and mass of extracellular LPL(P<0.05). Moreover, further investigation indicated that LPL C310R mutation tremendously affected post-transcriptional modification of LPL gene, whereas LPL E396V mutation dampened intracellular LPL trafficking. Conclusion Both the mutations are pathogenic by reducing the activity and mass of LPL in the plasma, which affected normal metabolism of triglycerides.

Objective To assess the functional restoration in patients with developmental dysplasia of the hip (DDH) who underwent hip resurfacing arthroplasty and to determine whether greater abduction angle of the acetabular component is relat?ed to larger diameter of femoral head component. Methods We reviewed 34 DDH cases (9 hips of 8 males and 25 hips of 24 fe?males, mean age 44.6±11.85 years at the time of surgery) on whom we performed hip resurfacing arthroplasty (HRA) from October 2006 to September 2009. The total hip Arthroplasty (THA) group was consisted of 35 DDH cases (8 hips of 8 males and 27 hips of 25 females, mean age 43.7±10.4 years at the time of surgery). All operations were performed by the same doctor over the same peri?od. Assessment of the functional hip scores was conducted by Harris Hip Scores. A radiographic study was also performed to evalu?ate the implants stability and abduction angle of the acetabular components. All the data was analyzed with Kolmogorov?Smirnov method. Results The mean follow?up was 6.2 years in the HRA group. The Harris Hip Score improved from 54.9±13.2 to 97.3± 6.2 after the surgery. The mean abduction angle of the acetabular component was 51.6° ± 5.33°, hip flexion was 127° ± 6.9° and mean diameter of femoral head was 46.5±1.5 mm. The mean follow?up was 5.9 years in the THA group. The Harris Hip Score im?proved from 51.6±19.7 to 95.6±7.9 after the surgery. The mean abduction angle of the acetabular component was 43.9°±4.90°, hip flexion was 117°±4.2°. There was no failure of the prosthesis, peri?prosthetic fracture and infection in either group. There was sig?nificant difference in the abduction angle of the acetabular component (P<0.05) and flexion of the hip between the two groups (P<0.05). Conclusion Patients in the HRA group had a better functional restoration and larger range of motion. Furthermore, a larger diameter of femoral head component could be achieved by placing the acetabular component in a greater abduction angle, which may contribute to a better long?term stability.

ThevolatilecompositionsofDuchesneaindicawerestudiedbyheadspacesolid-phase microextraction ( HS-SPME ) , soxhlet extraction ( SE ) , ultrasonic assistant extraction ( UAE ) and steam distillation ( SD) coupled with gas chromatography-mass spectrometry ( GC-MS) . The experimental parameters of HS-SPME, including fiber type, extraction temperature, extraction time and desorption time were investigated. 47, 32, 16 and 16 compounds were identified by HS-SPME, SD, SE and UAE extracting methods, respectively. 66 compounds were obtained in total, among which 47 compounds were first reported in Duchesnea indica. The experimental results showed that terpenoids were the most abundant compositions in HS-SPME and SD, but acids accounted for 61. 44% and 69. 54% of the total content obtained by SE and UAE.