Objective To investigate whether clinical,endocrine,and sonographic characteristics of infertile women with polycystic ovary syndrome (PCOS) could predict the ovarian response to clomiphene citrate (CC) medication.Methods A prospective study was conducted,85 women with PCOS were given CC 50 mg per day for 5 days.In the case of an absent response,doses were increased to 100 daily in subsequent cycles.Clinical,endocrine,and sonographic characteristics were compared between responders and nonresponders.Results The cycle history (oligomenorrhea or amenorrhea) and antral follicle count (AFC) were significantly different in responders from those in nonresponders (P ＜ 0.05).There were no differences in age,serum testosterone,follicle stimulating hormone (FSH),luteotropic hormone (LH),body mass index (BMI),insulin resistant index (HOMA-IR),and glucose and insulin levels between the two groups (P ＞ 0.05).In addition,multivariate logistic regression analysis indicated that cycle history and AFC were the predictors of ovarian response to CC treatment.Conclusions The cycle history and AFC can be used as the simple and effective parameters to predict ovarian response to CC treatment in PCOS patients.

Child ; China ; Humans ; Rheumatic Diseases

Objective To understand a cancer hospital inpatient care Ningxia quality of service perceived status quo.Methods Servqual model-based,self-designed Expect Inpatient Nursing Service Quality Perception Questionnaire was used to investigate 160 hospitalized patients and expected to build expectations oncology inpatients quality of care and services-dimensional perception matrix (IPA matrix).Results By analyzing sensible quality (SQ) value and IPA matrix of the Servqual questionnaire,all items except for treating equally and recommend the hospital showed SQ＜0,that was,the actual feelings of patients were less than expected,and there was statistical difference between the actual feelings and expected feelings in the quiet ward,health guide,care level (t=2.963,2.020,2.020,P ＜0.05).IPA matrix showed that ward quiet,health guidance,care level was the priority problems for the hospital.Life Care,protection of privacy,psychological care,level of service,pay the money reached care were the minor priority problems.Conclusions Servqual Model and IPA matrix combination can help to understand the gap between expectations and perception of nursing service,identify problems improvement priorities,identify weaknesses in care for hospital managers,and develop fine effective theory.

OBJECTIVEThrough orthodontic tooth movement in the pregnant and non-pregnant rats, to investigate the osteopontin (OPN) mRNA expression pattern in the periodontal tissues, and to probe its possible roles in orthodontic periodontal remodeling.

METHODSFixed appliances were used to mesially move the rats' maxillary first molars. In situ hybridization method was used to detect the expression changes of OPN mRNA in periodontal tissues.

RESULTSCompared to the non-pregnant rats, the expression of OPN mRNA in periodontal cells of the pregnant rats was more intensive. During the gestational period, the expression intensity had significant difference at different pregnant stages. The highest expressions occurred at the mid-pregnant stage, less at the late-stage and lest at the early-stage.

CONCLUSIONUnder the pregnant state, the expression of OPN mRNA in periodontal tissues may be up-regulated by increased serum progesterone level.

Animals ; In Situ Hybridization ; Male ; Molar ; Osteopontin ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Tooth Movement Techniques

Objective To assess the diagnostic accuracy of solitary pulmonary nodules while selecting different backgrounds in 99 Tcm‐MIBI SPECT/CT examination .Methods Totally 38 suspected solitary pulmonary nodules (SPN) were analyzed retrospectively .The lesions were divided into malignant group and benign group according to the pathological findings . We selected two different backgrounds , contralateral lung field ( DL ) and the contralateral soft tissue (NST) .The maximum counts and the mean counts of lesion to non‐lesion ratio (L/N) were calculated to evaluate diagnostic efficacy using ROC curve . The relationship between lesion size , pathological grading and L/N ratio was analyzed by Spearman correlation analysis . Results With DL and NST as the backgrounds ,the maximum counts and the mean counts of L/N between benign and malignant groups both differed significantly (all P<0 .05) .ROC curve analysis showed as follows :With DL and NST as the backgrounds ,the area under the curve (AUC) of L/DL‐MAX ,L/DL‐MEAN ,L/NST‐MAX ,and L/NST‐MEAN was 0 .73 ,0 .78 ,0 .80 and 0 .86 ,respectively .By pairwise comparison ,there was no significant difference (all P>0 .05) .The size and pathological grading of SPN did not affect 99 Tcm‐MIBI accumulation in the SPN (all P>0 .05) .Conclusion DL and NST both can be used as the background in diagnosis of pulmonary nodules on 99 Tcm‐MIBI SPECT/CT examination .The mean counts of the contralateral tissue used as the background can provide a stable result and a high diagnostic accuracy to assess the SPN .

Objective To investigate the extent of axillary lymph node dissection which can not only ef-fectively evaluate the axillary status but also reduce the complications to the minimum in early stage breast can-cer. Methods 331 patients with early breast cancer surgically treated from Jan. 2011 to Dec. 2013 were retro-spectively analyzed. Their preoperative axillary state was evaluated. They undertook sentinel lymph node biopsy (SLNB) by pure methylene blue dye method and frozen section examination during surgery. According to the ex-tent of axillary lymph nodes dissection, patients were divided into SLNB group (98 cases) and intercostobrachial nerve level lymph node dissection (ILND) group (233 cases). The pros and cons of the operation were compared. Results The sentinel lymph nodes (SLN) labeled by methylene blue were located under the intercostobrachial nerve level. The average number of SLN and intercostobrachial nerve level lymph nodes were 5.64+1.68 and 13.34+3.61 respectively. The detection rate and the false negative rate of SLNB was 97.42% and 2.58% respec-tively. The medium follow-up was 27.5 months. There was no significant difference in postoperative complications including upper limb paresthesia, swelling or limitation of shoulder activity between the two groups. Conclusion ILND is an effective and suitable surgical method in early breast cancer patients with failed intraoperative SLN labeling or with one SLN metastasis.

OBJECTIVETo explore the effects of stromal interaction molecule 1 (STIM1) on the expression of apoptosis-related proteins in prostate cancer PC-3 cells.

METHODSWe transfected the lentivirus vector STIM1-pGCSIL-GFP carrying STIM shRNA into human hormone-independent prostate cancer PC-3 cells, and 3 days later observed the transfection efficiency by fluorescence microscopy. At 7 days after transfection, we determined the expression of STIM1 in the PC-3 cells by RT-PCR and Western blot and those of apoptosis-related proteins Bcl-2, Bax, survivin and activated Caspase-3 by Western blot.

RESULTSAt 3 days, inverted microscopy revealed a transfection efficiency of > 80%. At 7 days, the STIM1 expression was significantly inhibited at both mRNA and protein levels. The Bcl-2/Bax rate was remarkably decreased as compared with that of the control group (0. 31 vs 1.24 ) , and the survivin expression was markedly reduced, 0. 14 times that of the relative expression in the control. However, the Caspase-3 cleavage was significantly activated, 1.52 times that of the control (P <0.05).

CONCLUSIONSTIM1 can be regarded as an oncogene in prostate cancer PC-3 cells. Inhibition of its expression can induce PC-3 cell apoptosis by reducing the Bcl-2/Bax rate, decreasing the survivin expression, and activating the Caspase-3 pathway.

Apoptosis ; Caspase 3 ; metabolism ; Cell Line, Tumor ; Humans ; Inhibitor of Apoptosis Proteins ; metabolism ; Male ; Membrane Proteins ; genetics ; Neoplasm Proteins ; genetics ; Prostatic Neoplasms ; metabolism ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; RNA, Small Interfering ; genetics ; Stromal Interaction Molecule 1 ; Transfection ; bcl-2-Associated X Protein ; metabolism

This study was aimed to explore the features of clustered regularly interspaced short palindromic repeats (CRISPR) structures in Shigella by using bioinformatics. We used bioinformatics methods, including BLAST, alignment and RNA structure prediction, to analyze the CRISPR structures of Shigella genomes. The results showed that the CRISPRs existed in the four groups of Shigella, and the flanking sequences of upstream CRISPRs could be classified into the same group with those of the downstream. We also found some relatively conserved palindromic motifs in the leader sequences. Repeat sequences had the same group with corresponding flanking sequences, and could be classified into two different types by their RNA secondary structures, which contain "stem" and "ring". Some spacers were found to homologize with part sequences of plasmids or phages. The study indicated that there were correlations between repeat sequences and flanking sequences, and the repeats might act as a kind of recognition mechanism to mediate the interaction between foreign genetic elements and Cas proteins.
Base Sequence ; Clustered Regularly Interspaced Short Palindromic Repeats ; Computational Biology ; Genome, Bacterial ; Plasmids ; Shigella ; genetics

OBJECTIVETo investigate clinical effects of three-column reconstruction via single posterior approach for the treatment of unstable thoracolumbar fractures accompanied by posterior column injury.

METHODSFrom December 2008 to May 2010,three-column reconstruction via posterior approach was implemented to 21 patients with unstable thoracolumbar fractures accompanied by posterior column injuries. There were 13 males and 8 females, ranging in age from 23 to 54 years old(averaged,35.5 years old). Injured vertebrae: 1 patient had injury in T11, 4 patients had injuries in T12, 8 patients had injuries in L1, 5 patients had injuries in L2, 3 patients had injuries in L3. The Cobb angle was (25.34 +/- 3.42) degrees. The operation time,blood loss during operation, Cobb angle and the bony fusion were observed.

RESULTSTwenty-one patients were followed up, and the duration ranged from 24 to 27 years old, with an average of 25.6 months. The operation time ranged from 135 to 275 min, with a mean of 185 min. The blood loss during operation ranged from 700 to 1 650 ml (averaged, 870 ml). All the patients had complete decompression. Postoperative Cobb angle was (4.01 +/- 2.03) degrees, and (4.34 +/- 2.38) degrees at the latest follow-up. All the patients got bony fusion.

CONCLUSIONTo the patients with unstable thoracolumbar fractures accompanied by posterior column injuries, three-column reconstruction via single posterior approach has both anterior approach and posterior approach advantages, which can obtain excellent clinical outcomes.

Adult ; Female ; Follow-Up Studies ; Humans ; Lumbar Vertebrae ; injuries ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; adverse effects ; methods ; Spinal Fractures ; diagnostic imaging ; surgery ; Thoracic Vertebrae ; injuries ; Tomography, X-Ray Computed ; Treatment Outcome ; Young Adult

Background Researches showed that wild-type p53(wtp53)and Rb94 genes inhibit the growth of retinoblastoma(RB),and these genes are involved in signal pathway in the induction and maintenance of cellular senescence.Thus the combination of two genes to inhibit growth of RB is concerned.Objective This study was to observe the inhibitory effect of the co-transfection of Rb94 and wtp53 gcnc into subretina on RB with ultrasound microbubble.Methods HXO-Rb44 suspension was subretinally injected to establish the RB model in 40 SPF female Balb/c nude mice.The RB models were randomized into model control group,wtp53 group,Rb94 group and wtp53+Rb94 group,and 0.1 ml relevant gene microvesicle suspension was injected via caudal vein in the different groups,but no any gene was used in the model control group.Seven days after modeling,followed by 0.5 W/cm2ultrasonic wave irradiated the eyeballs immediately for 4 seconds ×2 times and interrupted for 24 seconds.Eyeballs were extracted 7 days after gene transfection,and the expressions of wtp53 mRNA and Rb94 mRNA in tumor tissuc were detected by RT-PCR,and wtp53 and Rb94 protein in tumor tissue were assayed using Western blot.Immunochemistry was used to exam the VEGF expression,and TUNEL was used to evaluate the apoptosis of the tumor cells.Results The model successful rate after HXO-Rb44 suspension was 80％ (32/40)and obvious malformation cells were seen under the light microscope.In 7 days after gene transfection,no response band for wtp53 mRNA and Rb94 mRNA were found.The relative expression valuc of wtp53 mRNA was 0.65±0.07 in the wtp53 group,and that in wtp53+Rb94 group was 0.32±0.02,showing a significant difference between them (t =11.743,P =0.000).Rb94mRNA relative value was 0.42 ±0.03 in Rb94 group,and that in the wtp53 + Rb94 group was 0.23 ± 0.03,with a significant difference(t=5.041,P=0.001).The response bands of wtp53 and Rb94 proteins were seen in wtp53group,Rb94 group and wtp53+Rb94 group.Immunochemistry showed that the positive reactive intensity for VEGF in tumor tissue was obviously weaker in wtp53+Rb94 group than that in the wtp53 group,Rb94 group and model control group.Apoptotic index(Al) was 37.35±2.14 in the wtp53+Rb94 group,showing a significant increase in comparison with model control group (0.46 ± 0.05),wtp53 group (5.05 ± 0.80) and Rb94 group (6.43 ± 1.02) (t =-34.395,-28.206,-26.006,P＜0.01).Conclusions Ultrasound microvesicle enable double gene transfecting into RB tumor tissue,and Rb94 gene cooperation with wtp53 gene enhance the inhibitory effect on RB by promoting the apoptosis of RB cells.