Treatment of acetabular fractures with infra-acetabular screwing / 中华创伤骨科杂志

Objective:To investigate the clinical efficacy of infra-acetabular screwing in the treatment of acetabular fractures.Methods:A retrospective analysis was conducted of the 22 patients with acetabular fracture who had been admitted to Department of Trauma and Orthopedics, The Affiliated Hospital of Traditional Chinese Medicine, Xinjiang Medical University from January 2016 to January 2019. They were 16 males and 6 females, aged from 19 to 65 years (mean, 45.2 years). According to Letournel-Judet classification, there were 2 anterior column fractures, 12 anterior plus posterior hemi-transverse fractures, 3 T-shaped fractures and 5 both-column fractures. All patients were treated with infra-acetabular screwing through the ilioinguinal approach. Recorded were the patients＇ operation time, intraoperative blood loss, reduction quality, fracture union time, hip function and complications.Results:Operation time for this cohort ranged from 115 to 285 min (mean, 160 min), and intraoperative blood loss from 360 to 1,600 mL (mean, 650 mL). By the Matta scoring, fracture reduction was assessed as excellent in 14 cases, as good in 5 cases and as poor in 3 cases, giving an excellent and good rate of 86.4% (19/22). Of this cohort, 21 were followed up from 12 to 45 months (mean, 28.5 months) and one was lost to the follow-up. The fracture healing time for 21 patients ranged from 1.6 to 3.0 months, averaging 2.2 months. No patient had fracture displacement. The Merle d’Aubigné & Postel hip scores at the last follow-up ranged from 8 to18 points (average, 16 points), giving 12 excellent, 6 good, 2 fair, and one poor cases and an excellent and good rate of 85.7% (18/21). Follow-ups observed injury to the lateral femoral cutaneous nerve in one case, deep venous thrombosis of lower limb in 2 cases, superficial wound infection in one case and traumatic arthritis in one case, yielding a total rate of compilations of 23.8% (5/21).Conclusion:Application of infra-acetabular screwing after anatomical reduction of an acetabular fracture can effectively enhance the strength of internal fixation with no risk of fracture re-displacement, conducive to early functional exercise of the patient and leading to good clinical efficacy.

Research progress of Imaging parameters and clinical application of infra-acetabular channel screws / 中华骨科杂志

The aim of acetabular fracture surgery is to achieve anatomical reduction and potent fixation, to allow early functional rehabilitation of the injured hip joint, and to avoid postoperative complications such as joint stiffness, muscle atrophy, thrombosis, pneumonia and traumatic arthritis. In the past 10 years, the concept of minimally invasive treatment has developed rapidly. As a minimally invasive and precise internal fixation method, the pelvic channel screw concept has been widely used including infra-acetabular channel screw which is a channel on the inside of the hip joint, pass through both columns and parallel to the pelvic quadrilateral. Infra-acetabular channel screw is a combination of quadrilateral wall screw technique and pelvic osseous fixation pathways screw technique, which is applied to acetabular fractures that anterior and posterior column Separated. In Recent years, anatomical studies have found that more than 90% population exist a channel to place an 5 mm infra-acetabular screw safely, and described its entry point, angle, channel morphology, furthermore, vitro biomechanical have confirmed that the infra-acetabular channel screw can increase the fixation strength of acetabular fractures significantly. The clinical application has tested and verified its operability. The patients good recovery also proved the application value of the infra-acetabular screw. Thus a retrograde infra-acetabular screw technique is derived.

Mir-29c-3p targeting TUG1 affects migration and invasion of bladder cancer cells by regulating CAPN7 expression / 南方医科大学学报

OBJECTIVE@#To investigate the mechanism by which long non-coding RNA TUG1 affects bladder cancer cell migration and invasion.@*METHODS@#The expressions of TUG1 and miR-29c-3p were examined by quantitative RT-PCR (qRT-PCR) in 10 bladder cancer tissues and 5 bladder cancer cell lines. Trans-well assay was used to detect the changes in migration and invasion abilities of bladder cancer T24 cells after TUG1 knockdown using RNA interference technique, and the alteration in the expression of CAPN7 was also detected. The expression of CAPN7 was examined in T24 cells overexpressing mir-29c-3p by Western blotting, and luciferase reporter assay was performed to confirm the targeting of miR-29c-3p to TUG1 and CAPN7. The effects of CAPN7 overexpression and sh-TUG1 on the migration and invasion of T24 cells were investigated.@*RESULTS@#The expression of TUG1 was up-regulated and mir-29c-3p was down-regulated significantly in bladder cancer tissue with a negative correlation between their expressions. TUG1 knockdown significantly inhibited the migration and invasion of T24 cells ( < 0.01). Overexpression of mir-29c-3p in T24 cells obviously down-regulated the expression of CAPN7 protein, whose expression was positively correlated with TUG1 expression (=0.4081, =0.0139). The results of luciferase reporter assay confirmed both TUG1 and CAPN7 as the targets of mir-29c-3p. CAPN7 overexpression could partially reverse the tumor suppressing effect of sh-TUG1 in T24 cells.@*CONCLUSIONS@#Mir-29c-3p targeting TUG1 affects the migration and invasion of bladder cancer cells by regulating the expression of CAPN7.

Effect of suspension exercise training on motor and balance functions in children with spastic cerebral palsy / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To study the effect of suspension exercise training on motor and balance functions in children with spastic cerebral palsy.</p><p><b>METHODS</b>A total of 97 children with spastic cerebral palsy were randomly divided into an observation group with 49 children and a control group with 48 children. Both groups were given routine rehabilitation training, and the children in the observation group were given suspension exercise training in addition. The scores of the D and E domains of the 88-item version of the Gross Motor Function Measure (GMFM-88) and Berg Balance Scale (BBS) were recorded before treatment and at 1, 3, and 6 months after treatment. Surface electromyography was performed to observe the changes in the root mean square (RMS) of surface electromyogram signals of the adductor muscle and the gastrocnemius muscle.</p><p><b>RESULTS</b>Over the time of treatment, both groups had varying degrees of improvement in the scores of the D and E domains of GMFM-88 and BBS. Compared with the control group, the observation group had significantly greater improvements in D and E functional areas and balance function (P<0.05). Both groups had reductions in the RMS of the surface electromyogram signals of the adductor muscle and the gastrocnemius muscle over the time of treatment, and the observation group had significantly greater reductions than the control group (P<0.05).</p><p><b>CONCLUSIONS</b>Suspension exercise training can effectively improve the motor and balance functions of children with spastic cerebral palsy.</p>

Role of lncRNA PTENP1 in tumorigenesis and progression of bladder cancer and the molecular mechanism / 南方医科大学学报

<p><b>OBJECTIVE</b>To explore the molecular mechanism underlying the biological function of lncRNA PTENP1 in bladder cancer.</p><p><b>METHODS</b>Expressions of PTENP1, PTEN and miR-17 were examined by quantitative reverse transcriptase PCR (qRT-PCR) in 12 bladder cancer tissues. The expression of PTEN was examined by Western blotting in bladder cancer cell lines T24 and 5637 overexpressing PTENP1. Luciferase reporter assay was performed to confirm the targeting of miR-17 to PTENP1 and PTEN. T24 and 5637 cell lines with stable overexpression of PTENP1 and mir-17 were used to investigate effect of PTNE and miR-17 on the function of PTENP1 in bladder cancer.</p><p><b>RESULTS</b>The expression of miR-17 was up-regulated and PTENP1 and PTEN were down-regulated in bladder cancer tissues, where a positive correlation was found between PTENP1 and PTEN expressions and a negative correlation between PTENP1 and miR-17 (P<0.05). Overexpression of PTENP1 in bladder cancer cell lines T24 and 5637 obviously enhanced the expression of PTEN protein. miR-17 was found to target both PTENP1 and PTEN and promote the growth of bladder cancer. miR-17 could partially restore the tumor-suppressing activity of PTENP1 in bladder cancer.</p><p><b>CONCLUSION</b>By binding with miR-17, lncRNA PTENP1 functions as a PTEN competing endogenous RNA (ceRNA) to suppress the progression of bladder cancer.</p>

Notch signaling pathway regulates epithelial-mesenchymal transition and affects the invasiveness and drug resistance of bladder cancer / 基础医学与临床

Objective To investigate the effect of notch signaling pathway on drug resistance and invasiveness of bladder cancer .Methods We observed the changes of growth and morphology of bladder cancer T 24 , 5637 and J82 cells which treated for 48 hours using γ-secretase inhibitor by inverted microscope .The mRNA and protein lev-els of the EMT molecular markers , including E-cadherin , N-cadherin , vimentin and Alpha-smooth muscle actin were examined by RT-PCR and Western blot in bladder cancer cells;Detected the changes of drug resistance and invasion respectively by MTT and Transwell in bladder cancer cells .Results After completely blocking the Notch signaling pathway , the inverted microscope showed that bladder cancer cells became smaller and more disperse ;RT-PCR and Western blot showed the mRNA and protein levels of E-cadherin were up-regulated ( P<0.05 ) , contrast , N-cadherin , vimentin and Alpha-smooth muscle actin were down-regulated ( P<0.05 ); The prolifera-tion of bladder cancer cells were significantly inhibited by MTT test;The number of through microporous membrane cells significantly decreased ( P<0.05 ) shown by Transwell test .Conclusions The Notch signaling pathway is completely blocked that nhibites proliferation and EMT of bladder cancer cells , reduces drug resistance and inva-sion in bladder cancer cells .It suggests that drug resistance and invasiveness of bladder cancer can be changed through EMT which is regulated through notch signaling pathway .

MicroRNA-34a regulates cell cycle by targeting CD44 in human bladder carcinoma cells / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the role of microRNA-34a (miR-34a) in regulating the cell cycles of bladder cancer cell line J82 and explore the underlying mechanism.</p><p><b>METHODS</b>J82 cells were transfected with a miR-34a mimic or an inhibitor to induce miR-34a overexpression or silencing. The RNA level of miR-34a in the transfected cells was detected by real-time PCR, and CD44 expressions at the mRNA and protein levels were detected by real-time PCR and Western blotting. Luciferase reporter assay was used to detect the activation of 3'UTR of CD44, and flow cytometry was performed to analyze the cell cycle changes.</p><p><b>RESULTS</b>The expression level of miR-34a was significantly increased and CD44 expression significantly lowered in cells transfected with miR-34a mimic; miR-34a inhibitor transfection caused reverse effects on miR-34a and CD44 expressions. MiR-34a mimics downregulated while miR-34a inhibitor enhanced the activation of 3'UTR of CD44 with corresponding changes in the expressions of some cell cycle-related proteins. MiR-34a mimics and miR-34a inhibitor induced opposite changes in J82 cell cycle, which were partly reversed by CD44.</p><p><b>CONCLUSION</b>MiRNA-34a regulates cell cycles by targeting CD44 in human bladder carcinoma cell line J82.</p>

Intracellular localization and expression of importin 8 during osteoblast differentiation / 南方医科大学学报

<p><b>OBJECTIVE</b>To observe the variations of intracellular localization and expression of importin 8 (IPO8) during osteoblast differentiation.</p><p><b>METHODS</b>Alizarin red staining, immunocytochemistry and real-time PCR were employed to examine the changes in the intracellular localization and expression of IPO8 mRNA during induced osteogenic differentiation of human osteoblast-like SaOS-2 cells.</p><p><b>RESULTS</b>Numerous red mineralized nodules were observed on day 10 in the induced cells with alizarin red staining. Immunocytochemical staining showed that IPO8 immunoreactivity was the strongest in the perinuclear cytoplasm of the cells. On day 3 of osteoblast differentiation, IPO8 immunoreactivity in the cell nuclei became stronger. On day 7, IPO8 was located mainly in the nuclei, and on day 10 the cells were osteocyte-like and IPO8 was distributed in the cytoplasm. Real-time PCR showed a significantly increased expression of OPN mRNA during osteoblast differentiation, and the expression level of IPO8 mRNA was the highest on day 3 and declined on days 7 and 10.</p><p><b>CONCLUSION</b>The intracellular localization and expression level of IPO8 undergo significant changes during osteogenesis, indicating its role in regulating osteoblast differentiation.</p>

Influence of with intrahepatic cholestasis on pregnancy outcome / 中国基层医药

Objective To investigate the pregnancy outcome of gestational intrahepatic cholestasis.Methods 70 pregnant women with intrahepatic cholestasis were selected as the study group.70 healthy pregnant women during the same period were selected as the control group.The pregnancy outcomes of two groups were compaind.Results (1) The maternal serum levels of bile acid,alanine aminotransferase,aspartate aminotransferase in study group were (65.61 ± 13.5) μmol/L,(134.31 ± 24.7) U/L,(97.35 ± 21.54) U/L,which were higher than those of the control group (3.34 ± 0.41) μ mol/L,(36.16 ± 4.15) U/L,(23.34 ± 4.45) U/L,and the differences were statistically significant(P ＜0.01).(2) In study group,the incidence rate of maternal gestational hypertension was 21.42％,premature rupture of membranes was 17.14％,incidence rate of postpartum hemorrhage was 15.71％,which were significantly higher than 7.14％,5.71％,4.29％ in the control group,the differences were statistically significant(P ＜ 0.05).(3) In study group,the incidence rate of neonatal asphyxia was 27.14％,therate of amniotic fluid contamination was 35.71％,fetal distress was 22.86％ and 30.00％ of the childrenwith low birth weight,whichwere higher than those of the control group,the differences were statistically significant(P ＜0.01).Conclusion Pre gnancy intrahepatic cholestasis can increase the incidence rate of perinatal complications,has serious impact on the prognosis of the fetus,and to strengthen the monitoring of pregnancy intrahepatic cholestasis has important clinical significance.

Over-expression of LRIG3 suppresses growth and invasion of bladder cancer cells / 华中科技大学学报（医学）（英德文版）

The purpose of this study was to investigate the impact of leucine-rich repeats and immunoglobulin-like domains 3 (LRIG3) on the biological features of bladder cancer cell lines. The plasmids of over-expressed LRIG3 and the blank plasmid serving as control were transfected into the bladder cancer cell lines, T24, EJ and BIU-87, and the expression levels of LRIG3 mRNA and protein were detected by using real-time PCR and Western blotting. The changes in the cell cycle and apoptosis were examined by using flow cytometry. The invasive ability was measured by Transwell assay, and CCK-8 assays were used to measure the proliferation of cells. As compared with the control group, the LRIG3 mRNA and protein expression levels in LRIG3 cDNA-transfected group were raised significantly (P<0.05). The average number of cells with up-regulated LRIG3 passing through the inserted filter was decreased significantly as compared with the control group (P<0.05). Up-regulation of LRIG3 also could inhibit proliferation and induce apoptosis of T24, EJ and BIU-87 cells. Except BIU-87, the T24 and EJ cells transfected with LIRG3 cDNA were arrested in G(0)/G(1) phase compared to the control group (P<0.05). In conclusion, the over-expression of LRIG3 could influence the cell cycle and invasion, inhibit proliferation and induce apoptosis in the three bladder cancer cell lines.

Over-expression of LRIG3 suppresses growth and invasion of bladder cancer cells / 华中科技大学学报（医学）（英德文版）

The purpose of this study was to investigate the impact of leucine-rich repeats and immunoglobulin-like domains 3 (LRIG3) on the biological features of bladder cancer cell lines. The plasmids of over-expressed LRIG3 and the blank plasmid serving as control were transfected into the bladder cancer cell lines, T24, EJ and BIU-87, and the expression levels of LRIG3 mRNA and protein were detected by using real-time PCR and Western blotting. The changes in the cell cycle and apoptosis were examined by using flow cytometry. The invasive ability was measured by Transwell assay, and CCK-8 assays were used to measure the proliferation of cells. As compared with the control group, the LRIG3 mRNA and protein expression levels in LRIG3 cDNA-transfected group were raised significantly (P<0.05). The average number of cells with up-regulated LRIG3 passing through the inserted filter was decreased significantly as compared with the control group (P<0.05). Up-regulation of LRIG3 also could inhibit proliferation and induce apoptosis of T24, EJ and BIU-87 cells. Except BIU-87, the T24 and EJ cells transfected with LIRG3 cDNA were arrested in G(0)/G(1) phase compared to the control group (P<0.05). In conclusion, the over-expression of LRIG3 could influence the cell cycle and invasion, inhibit proliferation and induce apoptosis in the three bladder cancer cell lines.

Effects of fluvastatin on the airway remodeling in a guinea pig model of asthma / 中国病理生理杂志

AIM: To investigate the effects of fluvastatin on the airway remodeling in a guinea pig model of asthma. METHODS: Asthmatic guinea pig model was established by intraabdominal injection of ovalbumin and aluminium hydroxide and challenged with ovalbumin once every other day for 60 days. 30 guinea pigs were randomly divided into three groups: control group ( n= 10), asthma group ( n= 10) and fluvastatin plus asthma group ( n= 10) in which fluvastatin was inhaled at concentration of 0.5 g/L 30 min before every challenging. The thickness of airway smooth muscle layers of every three groups were compared after Haematin-Eosin staining by image analysis system. The level of ras mRNA in airway were examined by Dot-blot molecular hybridization. The expression levels of ras p21 were also examined by immunohistochemical technique. RESULTS: The mean thickness of airway smooth muscle in asthma group was (74 27?3 30) micrometer, greater than that of control group [(38 57?3 37) micrometer ( P

IMMUNOHISTOCHEMICAL LOCALIZATION OF NEUROKININ B RECEPTOR (NK3) IN THE CENTRAL NERVOUS SYSTEM OF THE MOUSE / 解剖学报

Objective To examine the localization of neurokinin B receptor (NK3)\|like immunoreactivity (\|LI) in the central nervous system of the mouse. Methods An immunohistochemcial staining method was used. Results NK3 receptor\|LI was localized in somatic and dendritic profiles in the most parts and in neuropil in a few regions of the mouse central nervous system. A large number of neurons with NK3\|LI was seen in the anterior olfactory nuclei, accumbens nucleus, septal area, ventral pallidum, pallidum, caudate putamen, nucleus of the stria terminalis, anterior hypothalamic area, tuber cincreum area, lateral hypothalamic area, perifornical nucleus, supraoptic nucleus, arcuate nucleus, mammillar nuclei, substatia nigra, ventral tegmental area, retrorubral area, superior and inferior colliculus, periaqueductal gray, nucleus of the solitary tract, and superficial layers of the medullary and spinal dorsal horns. The superfical layers of the cerebral cortex, piriform cortex, dorsal hippocampus, amygdal complex, reticular formation of the brainstem contained some neurons with NK3 receptor\|LI. In the ventral hippocampus, median and intralaminar nuclei of the thalamus and interpeduncular nuclei, NKR\|LI was localized in neuropil. Conclusion\ Neurons with NK3 receptor\|LI were widely distributed in the central nervous system. It may be involved in many physiological functions in the central nervous system of the mouse.\;[