Publications by authors named "Benjun Bi"

5 Publications

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[Lateral ligament reconstruction with autogenous partial peroneus longus tendon for chronic lateral ankle instability].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2020 Sep;34(9):1114-1119

Department of Hand and Foot Surgery, Affiliated Hospital of Qingdao University, Qingdao Shandong, 266000, P.R.China.

Objective: To assess the effectiveness of lateral ligament reconstruction with autogenous partial peroneus longus tendon for chronic lateral ankle instability.

Methods: Between September 2014 and November 2018, 32 patients (32 sides) with chronic lateral ankle instability were treated with lateral ankle ligament reconstruction by using autogenous anterior half of the peroneus longus tendon. There were 25 males and 7 females, with an average age of 28.5 years (range, 20-51 years). The disease duration was 6-41 months (mean, 8.9 months). The preoperative Karlsson-Peterson ankle score was 53.7±9.7. The talar tilt angle was (14.9±3.7)°, and the anterior talar translation was (8.2±2.8) mm. Six patients combined with osteochondral lesion of talus and 4 patients combined with bony impingement.

Results: All incisions healed by first intention postoperatively. All patients were followed up 12-53 months (mean, 22.7 months). At last follow-up, the Karlsson-Peterson ankle score was 85.2±9.6; the talar tilt angle was (4.3±1.4)°; the anterior talar translation was (3.5±1.1) mm. There were significant differences in all indexes between pre- and post-operation ( <0.05). Seventeen patients were very satisfied with the results, 10 patients were satisfied, 4 patients were normal, and 1 patient was unsatisfied. After operation, the ankle sprain occurred in 7 cases, the tenderness around the compression screws at calcaneus in 5 cases, the anterolateral pain of ankle joint over 6 months in 4 cases. No patient had discomfort around the reciepient sites. At last follow-up, the ultrasonography examination showed that there was no significant difference in the density and diameter between bilateral peroneus longus tendons in 12 cases.

Conclusion: For chronic lateral ankle instability, the lateral ankle ligament reconstruction with the autogenous partial peroneus longus tendon is a safe and effective surgical option.
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http://dx.doi.org/10.7507/1002-1892.202002008DOI Listing
September 2020

Negative feedback loop of ERK/CREB/miR-212-3p inhibits HBeAg-induced macrophage activation.

J Cell Mol Med 2020 09 7;24(18):10935-10945. Epub 2020 Aug 7.

Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.

The activation of liver macrophages is closely related to liver injury after HBV infection. Our previous results demonstrated that HBeAg played a key role in inducing macrophage activation. As we all know, miRNAs are involved in the regulation of multiple immune cell functions. Meanwhile, we have shown that miR-155 positively regulates HBeAg-induced macrophage activation and accelerates liver injury. Subsequently, based on our previous miRNA sequencing results, we further evaluated the role of miR-212-3p called 'neurimmiR' in HBeAg-induced macrophages in this study. First, miR-212-3p expression was significantly elevated in HBeAg-treated macrophages. Meanwhile, we found up-regulation of miR-212-3p significantly decreased the production of cytokines, whereas knockdown of miR-212-3p held the opposite effect by gains and losses of function. Mechanically, although MAPK signal pathway, including ERK, JNK and p38, was activated in HBeAg-induced macrophages, only ERK promoted the expression of miR-212-3p via transcription factor CREB, which was able to bind to the promoter of miR-212-3p verified by ChIP assay. Moreover, we further indicated that up-regulated miR-212-3p inhibited HBeAg-induced inflammatory cytokine production through targeting MAPK1. In conclusion, miR-212-3p was augmented in HBeAg-stimulated macrophages via ERK/CREB signal pathway and the elevated miR-212-3p suppressed inflammatory cytokine production induced by HBeAg through targeting MAPK1.
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http://dx.doi.org/10.1111/jcmm.15723DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7521245PMC
September 2020

Autogenous fibula graft and cannulated screw fixation to cephalic cut out after DHS fixation: a retrospective study.

J Orthop Surg Res 2020 Jan 15;15(1):11. Epub 2020 Jan 15.

Department of Orthopedics, Yantaishan Hospital, Yantai, China.

Background: This study aimed to explore the effect of the treatment through autologous fibula graft and hollow needle fixation to treat femoral head cutting after dynamic hip screw (DHS) fixation.

Methods: A total of 41 patients were admitted to the department of orthopedic trauma and received DHS fixation. Preoperative and postoperative harris score of hip function, limb shortening length and collodiaphysial angle between operation group (n = 11) and non-operation group (n = 13) were compared.

Results: There was no difference between the two groups before surgery (P > 0.05). There was a difference between the preoperative and postoperative in the operation group (P < 0.05). The excellent and good rate of the hip function score in patients 6 months after the operation was 55.6%. In the operation group, the hip function score increased after surgery (P < 0.001). Except for two groups of patients before operation, there was a difference in the limb shortening length and collodiaphysial angle between the operation group and non-operation group in other time points after surgery (P < 0.001).

Conclusion: The application of the autogenous fibula graft and hollow nail fixation was effective in treating femoral head cutting after DHS fixation, and patients' subjective evaluation and objective indicators' outcomes of follow up were satisfactory, which was worthy of clinical application.
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http://dx.doi.org/10.1186/s13018-019-1521-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6964207PMC
January 2020

The effect of robot-navigation-assisted core decompression on early stage osteonecrosis of the femoral head.

J Orthop Surg Res 2019 Nov 21;14(1):375. Epub 2019 Nov 21.

Department of Osteoarthropathy, Yantaishan Hospital, No. 91, Jiefang Road, Yantai, 264001, Shandong Province, China.

Background: The aim of the current paper is to evaluate the effects of robot-navigation-assisted core decompression compared with conventional core decompression surgery for early-stage osteonecrosis of the femoral head.

Methods: Twenty patients with a total of 36 hips who were diagnosed with Association Research Circulation Osseous stage 2 avascular necrosis of the femoral head and who received core decompression with or without robotic assistance were reviewed. The Harris hip score and visual analog scale score were used to assess clinical function. Intraoperative radiation exposure and operation time were used to evaluate the effectiveness of the robot-assisted system.

Results: At a mean follow-up of 26.4 months (24-36 months), the Harris hip score, visual analog scale score, and survival rate of the patients were similar between the conventional and robot-assisted groups. The guidewire insertion time, number of guidewire attempts, and radiation exposure during guidewire insertion were all significantly lower in the robot-assisted group than in the conventional group.

Conclusions: Robot-assisted core decompression of the femoral head is as safe and effective as a conventional core decompression surgery. It can reduce operation time and decrease intraoperative radiation exposure.
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http://dx.doi.org/10.1186/s13018-019-1437-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6868870PMC
November 2019

Sulforaphane induces apoptosis and inhibits invasion in U251MG glioblastoma cells.

Springerplus 2016 29;5:235. Epub 2016 Feb 29.

Yantaishan Hospital, Yantai, China.

In recent studies, sulforaphane (SFN) has been seen to demonstrate antioxidant and anti-tumor activities. In the present study, the viability inhibition effects of SFN in U251MG glioblastoma cells were analyzed by MTS. Morphology changes were observed by microscope. Apoptotic effects of SFN were evaluated by annexin V binding capacity with flow cytometric analysis. Invasion inhibition effects of SFN were tested by the invasion assay. The molecular mechanisms of apoptotic effects and invasion inhibition effects of SFN were detected by western blot and gelatin zymography. The results indicated that SFN has potent apoptotic effects and invasion inhibition effects against U251MG glioblastoma cells. These effects are both dose dependent. Taken together, SFN possessed apoptotic activity on U251MG cells indicated by increased annexin V-binding capacity, Bad, Bax, cytochrome C expression, and decreased Bcl-2 and survivin expressions. SFN inhibited invasion in U251MG cells via upregulation of E-cadherin and downregulation of MMP-2, MMP-9 and Galectin-3.
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http://dx.doi.org/10.1186/s40064-016-1910-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4771656PMC
March 2016