Burkholderia ; isolation & purification ; China ; Humans ; Melioidosis

OBJECTIVETo explore the effects of different fertilization methods on the outcomes of elective blastocyst culture.

METHODSWe retrospectively analyzed the outcomes of elective blastocyst culture for 1 153 cycles of IVF and 205 cycles of ICSI performed between january 2009 and December 2012.

RESULTSA total number of 14 748 embryos in the IVF group and 2 655 embryos in the ICSI group underwent sequential blastocyst culture, with 7 871 blastocysts formed in the former and 1 210 in the latter. No cycles were canceled for no blastocyst formation in either of the two groups. The rates of quality embryos, blastocyst formation and embryo utilization were significantly higher in the IVF than in the ICSI group (64.77 vs 58.72%, 53.37 vs 45.57%, and 60.06 vs 52.17%, all P < 0.05), but the rates of implantation, clinical pregnancy and abortion showed no significant differences between the two groups (48.94 vs 51.43%, 49.03 vs 52.02%, and 11.69% vs 15.56, all P > 0.05).

CONCLUSIONWith the same inclusion criteria of selective blastocyst culture, IVF has a lower risk of cycle cancellation due to no blastocyst formation and therefore may effect higher rates of blastocyst formation and embryo utilization than ICSI. Our study suggested that appropriate inclusion criteria of selective blastocyst culture should be laid down according to different fertilization methods.

Adult ; Blastocyst ; Embryo Transfer ; Female ; Fertilization in Vitro ; methods ; Humans ; Pregnancy ; Retrospective Studies ; Sperm Injections, Intracytoplasmic

Objective To explore the effects and complication treatments of microwave ablation(MWA) for benign thyroid nodules.Methods The clinical data of 74 patients with benign thyroid nodules treated with MWA in our department from June 2014 to May 2015 were collected and studied retrospectively.Furthermore,the effects and complication treatments were analyzed and calculated.Results A total of 93 nodules were treated with MWA,of which 46 were the main nodules,cystic 47;7 nodules' ablation were not complete,the complete ablation rate was 92.47％.The postoperative reduction of volume in cystic nodules were significantly higher than solid nodules,and the number of solid nodules decreased more rapidly postoperation.The untreated cystic nodules developed a certain degree of growth after 6 months of surgery.After treatment,the TSH of solid nodules were obviously higher,the FT3 and FT4 were much lower than those before treatment and cystic nodules(P ＜ 0.05).A total of 17 cases of complications occurred in the positive symptomatic treatment,all cases were cured within a few days,there was no serious complications.Conclusion Microwave ablation has a high ablation rate in the treatment of thyroid benign nodules,the ablation effects are different between solid and cystic nodules;early and targeted measures can effectively prevent and deal with surgical complication.

Biomechanics is the application of mechanics to biological systems. It helped to provide more understanding of normal tissue function, the effect of pathology, and the impact of treatment. The biomechanics research also is an important method to understand the prevention, onset and treatment of eye diseases. Eye ball is a closed globe which undergoes pressure from intraocular or extraocular. The pathology of eye will affect its biomechanics. Recent years, several methods about biomechanics were used to study eye diseases, such as corneal collagen crosslinking for treatment of keratoconus and corneal ectasia, posterior sclera reinforcement for treatment of pathological myopia, and so on. Here we reviewed the biomechanical research of extraocular muscle, cornea, sclera, iris and lens.

OBJECTIVETo develop chromosome abnormal karyotype quality control cell and to explore the external quality assessment (EQA) method for chromosome karyotype analysis.

METHODSThe chromosome abnormal karyotype quality control cells were prepared by EB virus (EBV) transfection of human B lymphocyte strain establishment and were distributed to participating labs for EQA test of chromosome karyotype analysis project at appointed time. The evaluation results were obtained through 4 grades scoring.

RESULTSSix kinds of chromosome abnormal karyotype quality control cells were initially developed, the karyotypes of which were 46,X, t(Y;5)(q12;q21), 46, XY, 15p +, 46, XX, t(13;18)(q12;q21), 46, X, r(Xp), 46,X,t(Y;Y), 46,XX,t(9;20)(p13;p13) respectively. In the external quality assessment, feedbacks from the participating labs on the sequencing results of the six kinds of quality control cells showed that the wholly overlapping rate were 82.1%, 92.0%, 84.6%, 80.8%, 86.2%, 74.1% and the wholly deviation rate were 10.7%, 8.0%, 11.5%, 19.2%, 13.8%, 18.5%. The overall wholly overlapping rate, partial overlapping rate, partial deviation rate and wholly deviation rate turned out to be 83.2%, 0.6%, 2.5% and 13.7% respectively.

CONCLUSIONThe misdiagnose rate of chromosome karyotype analysis is rather high and regular external quality assessment is necessary to achieve dynamic information and improve diagnosis quality.

B-Lymphocytes ; virology ; Cell Line ; Chromosome Aberrations ; Chromosome Painting ; Herpesvirus 4, Human ; physiology ; Humans ; Karyotyping ; methods ; Lymphocytes ; virology

OBJECTIVETo explore the clinicopathological characteristics of primary thyroid-like follicular carcinoma of the kidney.

METHODSA case of primary thyroid-like follicular carcinoma of the kidney was studied with histology and immunohistochemical staining, and its clinical and pathological findings were further analyzed with review of the literature.

RESULTSThe patient was a 26-year-old asymptomatic woman who had a kidney mass during her annual physical examination. The tumor was well-circumscribed. Pathologically, the tumor showed follicular structures with colloid-like material in the lumina. Immunohistochemically, the tumor cells showed intense staining for CK7 and vimentin and negative for thyoid transcripation factor-1, thyroglobulin, thyoid peroxidase and RCC.

CONCLUSIONSThe diagnosis of primary thyroid-like follicular carcinoma of the kidney is based on the characteristic follicular architecture with colloid-like material, and the metastasis from a thyroid follicular carcinoma must be excluded clinically and pathologically before making the final diagnosis.

Adenocarcinoma, Follicular ; metabolism ; pathology ; Adult ; DNA-Binding Proteins ; metabolism ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Humans ; Keratin-7 ; metabolism ; Kidney Neoplasms ; metabolism ; pathology ; Nephrectomy ; methods ; Neprilysin ; metabolism ; Thyroid Neoplasms ; metabolism ; pathology ; Transcription Factors ; Vimentin ; metabolism

BACKGROUNDMechanical stress plays an important role in the maintenance of bone homeostasis. Current hypotheses suggest that interstitial fluid flow is an important component of the system by which tissue level strains are amplified in bone. This study aimed to test the hypothesis that the short-term and appropriate fluid shear stress (FSS) is expected to promote the terminal differentiation of pre-osteoblasts and detect the expression profile of microRNAs in the FSS-induced osteogenic differentiation in MC3T3-E1 cells.

METHODSMC3T3-E1 cells were subjected to 1 hour of FSS at 12 dyn/cm(2) using a parallel plate flow system. After FSS treatment, cytoskeleton immunohistochemical staining and microRNAs (miRNAs) were detected immediately. Osteogenic gene expression and immunohistochemical staining for collagen type I were tested at the 24th hour after treatment, alkaline phosphatase (ALP) activity assay was performed at 24th, 48th, and 72 th hours after FSS treatment, and Alizarin Red Staining was checked at day 12.

RESULTSOne hour of FSS at 12 dyn/cm(2) induced actin stress fiber formation and rearrangement, up-regulated osteogenic gene expression, increased ALP activity, promoted synthesis and secretion of type I collagen, enhanced nodule formation, and promoted terminal differentiation in MC3T3-E1 cells. During osteogenic differentiation, expression levels of miR-20a, -21, -19b, -34a, -34c, -140, and -200b in FSS-induced cells were significantly down-regulated.

CONCLUSIONThe short-term and appropriate FSS is sufficient to promote terminal differentiation of pre-osteoblasts and a group of miRNAs may be involved in FSS-induced pre-osteoblast differentiation.

Actins ; chemistry ; Alkaline Phosphatase ; metabolism ; Animals ; Cell Differentiation ; Cells, Cultured ; Collagen Type I ; biosynthesis ; Core Binding Factor Alpha 1 Subunit ; genetics ; Cyclooxygenase 2 ; genetics ; Gene Expression Profiling ; Mice ; MicroRNAs ; physiology ; Osteoblasts ; cytology ; Osteogenesis ; Stress, Mechanical ; Stress, Physiological

OBJECTIVETo study the anatomical measurement of goat lumbar vertebrae and to compare with human lumbar vertebrae, so as to build the foundation for establishing animal models of lumbar prosthesis.

METHODSThe anatomical parameters of the vertebral body, pedicle and intervertebral disc in the fresh lumbar vertebrae of Boer goat and the lumbar vertebrae of healthy adults were collected by computer aided software Mimics16.0, and the anatomical characteristics of the two lumbar vertebrae were compared with the statistical software.

RESULTSThe anterior vertebral body height(VBHa) of goat lumbar was less than the middle vertebral body height(VBHm), which was less than the posterior vertebral body height(VBHp), and the maximum values were (38.7±2.9), (40.1±2.6) and (40.7±2.7) mm respectively. Its endplate width was greater than its depth, with the whole shaped like a heart or a kidney. The cranial endplate of goats was convex while the caudal endplate was depressed and the depression was small, with a maximum value of (1.6±0.6) mm. The pedicle height of goats increased from L₁1 to L̀ with the maximum of (30.5±1.9) mm; its pedicle width and angle increased firstly and then decreased with the increase of vertebra level and the minimum values were (6.7±0.4) mm and(45.9±2.6)° respectively. The anterior intervertebral disc height was larger than the middle which was larger than the posterior and all varied slightly with the changes of intervertebral spaces; the height and width of intervertebral foramen separately waved at (12.9±0.3) to (14.3±1.0) mm and (5.7±1.0) to (6.7±0.9) mm. The comparative results showed that the vertebral body height, pedicle height and angle of goats were greater than those of humans (<0.05) while the width and depth of the endplate, the intervertebral disc height, and etc. were significantly smaller than those of humans (<0.05). In addition, some structures, such as the height of pedicle and intervertebral disc, also showed different changing laws with the increase of vertebra level.

CONCLUSIONSAlthough there are similarities in goat lumbar spine in some aspects, such as endplate and foramen foramen, there are still many differences in many aspects. Understanding the anatomical characteristics of goat lumbar vertebrae and the difference between goat and human is of great guiding significance for the research of goat prosthesis and related technology.

OBJECTIVE: To study and measure the anatomic structure of lumbar vertebral endplate structure in healthy adults by computed tomography(CT) technique in order to provide a useful guidance for the optimal design and clinical application of lumbar prostheses. METHODS: Sixty healthy adults (male and female equals) were recruited for full-waist CT scan after signing the informed consent form in the imaging department of the Second Affiliated Hospital of Xi'an Jiaotong University. The scanning data was imported into the computer aided software Mimics 16.0 for 3D reconstruction and measurement. The acquisition indexes included median sagittal diameter, maximum coronal diameter, concavity depth, median sagittal depression angle, coronal depression angle and so on. Finally, the collected data were statistically analyzed by the statistical software. RESULTS: The median sagittal diameter and the maximum coronal diameter of the upper and lower endplates were not only different between the different sexes(<0.05), but also were increased with the increase of the lumbar spine sequence. The concavity depth of upper and lower endplates had no gender differences(>0.05), but had a little change from L₁ to L₅, fluctuating from 1.5 to 2.0 mm and from 2.2 to 3.9 mm, respectively. In the same sequence, the concavity depth of lower endplate in males was greater than that of upper endplate, and the difference was statistically significant(<0.05), but there was no significant difference in the concavity depth of upper and lower endplate in females(>0.05). Sagittal concavity angle and coronal concavity angle of upper and lower endplates changed slightly with the increase of vertebral order, and there was no gender difference in sagittal and coronal concavity angle of most vertebral sequences (>0.05). Statistics showed that the largest concavity near the caudal lumbar endplate was located on the dorsal side of the endplate plane. CONCLUSIONS The anatomical structure of the lumbar endplate is very complicated. It is important to master the anatomical parameters of the endplate and make full use of CT before operation for the development and clinical application of the lumbar prosthesis.
Female ; Humans ; Lumbar Vertebrae ; Lumbosacral Region ; Male ; Prostheses and Implants ; Tomography, X-Ray Computed

Objective: To observe effect of alprostadil combined with Diammonium glycyrrhizinate on renal interstitial fibrosis in SD rats. Methods: A total of 75 SD rats were randomly divided into A, B, C, D, E groups with 15 in each group. Rats in group A served as the control group received just only but tissue separation without modeling operation, while model of unilateral ureteral obstruction (UUO) was established in B, C, D, E groups. Rats in A, B group were given saline lavage placebo treatment, while rats in C, D, E groups were given diammonium glycyrrhizinate and alprostadil injection. Five rats were sacrificed 1, 2, 3 weeks after modeling, serum creatinine level of femoral venous blood was determined. Transforming growth factor - β1 (TGF - β1) and concentration of connective tissue growth factor (CTGF) were also detected by using ELISA. Line renal interstitial tissue was taken after HE staining, renal interstitial TGF - β1 and CTGF expression were detected by using immunohistochemical method. Results: Serum creatinine levels of B, C, D, E group at different time points in were significantly higher than that of group A (. P<0.05); serum creatinine levels in group B were significantly higher than that of C, D, E group at each time point (. P<0.05). Serum creatinine level of Group E was significantly lower than C, D group after 2, 3 weeks (. P<0.05). Rats in A group at each time point showed no significant changes in TGF - β1 and CREA concentration in serum and kidney tissues (. P>0.05); while serum and kidney tissue TGF - β1, concentration of CREA, expression of rats in B, C, D, E groups showed a gradual increasing trend over time. TGF - β1 and CREF of Group B in serum and kidney tissues at each time point were significantly higher than that of the other groups (. P<0.05). TGF - β1 and CREF of Group E in serum and kidney tissues at each time point were significantly lower than that of B, C, D group at all time points in serum and kidney tissues (. P<0.05). Conclusions: Alprostadil combined with diammonium glycyrrhizinate can significantly lower the expression of TGF - β1 and CTGF in serum and tissues of SD rat with renal interstitial fibrosis, thus inhibit rat renal interstitial fibrosis process. It has synergy protective effect.