scholarly journals Inhibitory effects of vitamin E on osteocyte apoptosis and DNA oxidative damage in bone marrow hemopoietic cells at early stage of steroid-induced femoral head necrosis

2017 ◽  
Vol 15 (4) ◽  
pp. 1585-1592 ◽  
Author(s):  
Yan-Bo Jia ◽  
Dian-Ming Jiang ◽  
Yi-Zhong Ren ◽  
Zi-Hong Liang ◽  
Zhen-Qun Zhao ◽  
...  
2017 ◽  
Vol 4 (S) ◽  
pp. 153
Author(s):  
Lan Thi Phi ◽  
Thuy Thi-Thanh Dao ◽  
Khanh Dinh-Van Nguyen ◽  
Phuc Van Pham ◽  
Khanh Hong-Thien Bui ◽  
...  

Background: Pathological animal models provide the foundation for developing new methods for treating. This research aims to establish a rabbit model of femoral head necrosis. Osteonecrosis of the femoral head (ONFH) was induced in rabbits by using methylpresnisolone combined with Complete Freund's Adjuvant (CFA). New Zealand White rabbits were divided into two groups. Group A (n=10) was given an intramuscular injection of 0.5 mg/kg (CFA) and 40mg/kg methylprednisolone (MPS). Group B (n=6) was received normal saline at the same location and same volume as those in Group A. The efficiency of ONFH rabbit model was assessed at 7 weeks after the last injection. Body weight was weighed. The histological structure of head femoral and bone were deteded by H&E staining. The empty lacuna was counted. Cartilage degeneration was evaluated using image analysis software. Blood vessel density was assessed after ink artery infusion. The cell cycle of bone marrow-derived mononuclear cells was analyzed by flow cytometry. The results showed that there was no difference in body weight change of rabbits between two groups. However, the bone morphology and cartilage surface of femoral head were abnormalities at group A. The percentage of empty osteocyte lacunae were significantly higher in Group A than Group B. Chondrocyte degeneration and fibrocartilage expression were observed at Group A. Compare to group B, Group A had less ink-stained blood vessels. Moreover, the fraction of bone marrow-derived mononuclear at S phase and G2/M phase of the cell cycle was significantly decreased in group A. Thus, CFA combined with MPS can  be used to establishing an early-stage femoral head necrosis model of rabbit.


2017 ◽  
Vol 4 (11) ◽  
pp. 1749
Author(s):  
Lan Thi Phi ◽  
Ha Thi -Ngan Le ◽  
Thuy Thi -Thanh Dao ◽  
Khanh Dinh-Van Nguyen ◽  
Khanh Hong-Thien Bui ◽  
...  

Introduction: Pathological animal models provide the foundation for developing new methods for disease treatment. This research aims to establish a rabbit model of femoral head necrosis. Methods: Osteonecrosis of the femoral head (ONFH) was induced in rabbits by using methylprednisolone (MPS) combined with Complete Freund's Adjuvant (CFA). New Zealand White rabbits were divided into two groups. ONFH group (n=10) was given an intramuscular injection of 0.5 mg/kg CFA and 40 mg/kg methylprednisolone. Normal group (n=6) received normal saline at the same location and same volume as those in ONFH group. The efficiency of the ONFH rabbit model was assessed at week 7 after the last injection. Body weight was detected, and the histological structure of head femoral and bone were assessed by H&E staining. The empty lacunae were counted. Cartilage degeneration was evaluated using image analysis software. Blood vessel density was assessed after ink artery infusion. The cell cycle of bone marrow-derived mononuclear cells was analyzed by flow cytometry. Results: The results showed that there was no difference in body weight changes of rabbits between the two groups. However, the bone morphology and cartilage surface of the femoral head showed abnormalities in the ONFH group. The percentage of empty osteocyte lacunae was significantly higher in ONFH group than normal group. Chondrocyte degeneration and fibrocartilage expression were observed in the ONFH group. Compared to the normal group, the ONFH group had less ink-stained blood vessels. However, the fraction of bone marrow-derived mononuclear cells in S phase and G2/M phase of the cell cycle was significantly increased in the ONFH group. Conclusion: Thus, CFA combined with MPS for 7 weeks can be used to establish an early-stage femoral head necrosis model in rabbits.


Author(s):  
Kun-chi Hua ◽  
Xiong-gang Yang ◽  
Jiang-tao Feng ◽  
Feng Wang ◽  
Li Yang ◽  
...  

Abstract Background Core decompression (CD) is an important method for the treatment of osteonecrosis of the femoral head (ONFH). Few articles investigate the influence of core decompression on outcomes of ONFH. This study was carried out to observe the safety and effectiveness of core decompression in the treatment of ONFH. Methods A comprehensive literature search of databases including PubMed, Embase, and Cochrane Library was performed to collect the related studies. The medical subject headings used were “femur head necrosis” and “Core decompression.” The relevant words in title or abstract included but not limited to “Osteonecrosis of the Femoral Head,” “femoral head necrosis,” “avascular necrosis of femoral head,” and “ischemic necrosis of femoral head.” The methodological index for nonrandomized studies was adopted for assessing the studies included in this review. Results Thirty-two studies included 1865 patients (2441 hips). Twenty-one studies (1301 hips) using Ficat staging standard, 7 studies (338hips) using Association Research Circulation Osseous (ARCO) staging standard, and University of Pennsylvania system for staging avascular necrosis (UPSS) staging criteria for 4 studies (802 hips). All the studies recorded the treatment, 22 studies (1379 hips) were treated with core decompression (CD) alone, and 7 studies (565 hips) were treated with core decompression combined with autologous bone (CD Autologous bone). Nine subjects (497 hips) were treated with core decompression combined with autologous bone marrow (CD Marrow). Twenty-seven studies (2120 hips) documented the number of conversion to total hip replacement (THA), and 26 studies (1752hips) documented the number of radiographic progression (RP). Twenty-one studies recorded the types of complications and the number of cases, a total of 69 cases. The random-effect model was used for meta-analysis, and the results showed that the overall success rate was 65%. The rate of success showed significant difference on the outcomes of different stages. The rate of success, conversion to THA, and radiographic progression showed significant difference on the outcomes of ONFH using different treatments. Conclusions Core decompression is an effective and safe method of treating ONFH. The combined use of autologous bone or bone marrow can increase the success rate. For advanced femoral head necrosis, the use of CD should be cautious. High-quality randomized controlled trials and prospective studies will be necessary to clarify the effects of different etiology factors, treatments, and postoperative rehabilitation. Until then, the surgeon can choose core decompression to treat ONFH depending on the patient’s condition. Level of evidence I Meta-analysis


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Linghanqing Wang ◽  
XuRong Tian ◽  
Keda Li ◽  
Chunlei Liu

Problem statement. Core decompression (CD) is a very significant process of dealing in the treatment of femoral head necrosis. And CD combined with bone marrow mesenchymal stem cell transplantation has been widely used in clinical practice, but its effectiveness is controversial. This study is carried out to observe its efficacy and outcomes. Objective. This study evaluated the efficacy and safety of CD combined with bone marrow stem cells in the treatment of femoral head necrosis by systematic review and meta-analysis. Methodology. PubMed, The Cochrane Library, Embase, CNKI, Google Scholar and MEDLINE, etc. databases were searched for clinical randomized controlled trials (RCTs) comparing core decompression combined with autologous bone marrow mesenchymal stem cells versus core decompression alone in the treatment of femoral head necrosis. The retrieval period is from the establishment of each database to May 20, 2021. After literature was extracted and literature quality was evaluated, meta-analysis was conducted by using RevMan5.3 software. Results. A total of 420 osteonecrosis of the femoral head 452 patients' data were collected from all studies. Compared with the core decompression alone group, the CD combined with bone marrow stem cell showed marked reduction in the Visual analog scale (VAS), enhanced Harris hip score (HHS) at 12 months and 24 months, slowed down the progression of the disease, decreased the number of hips conversed to total hip arthroplasty (THA) in the future. Conclusion. Core decompression therapy is a very effective and safe treatment process used for ONFH. Moreover, CD combined autologous bone marrow stem cell transplantation can improve the survival rate of the necrotic head, reduce hip pain and delay the disease progression, the rate of THA postoperatively.


1994 ◽  
Vol 4 (3-4) ◽  
pp. 101-114
Author(s):  
B.J. Berendsen ◽  
C.J. Wirth ◽  
H.V.D. Boom

Forty-seven intertrochanteric osteotomies were performed in 9 years on 40 patients with femoral head necrosis in Arlet and Ficat stages II and III in the Orthopaedic Department of the Medical School, Hannover. With an average follow up of 5.9 years (minimum 2.3 years, maximum 9.3 years), the study shows only 46% of the patients with satisfactory, good and very good results. After the joint saving operation, 26% of treated patients with pre-operative employment went into premature retirement. The average postoperative non-working period was 11 months (7-18 months). Clinical Relevance The results after the joint-saving operation were better when the operation was performed at an early stage of the disease with only a small area of necrosis. Although the operation will not prevent a progression of necrosis and a secondary arthrosis, we recommend that the joint-saving operation be performed during stages I and II to prolong the period before a total hip joint replacement becomes necessary. During stage III a total hip joint replacement may be preferable depending on clinical symptoms, patient age and the radiological findings (necrosis angle > 180°).


2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Xiaolong Wang ◽  
Yu Liu ◽  
Xuemei Wang ◽  
Rui Liu ◽  
Jianbo Li ◽  
...  

Objective. To validate the ability of99mTc-Annexin V to visualize early stage of glucocorticoid-induced femoral head necrosis by comparing with99mTc-MDP bone scanning.Methods. Femoral head necrosis was induced in adult New Zealand white rabbits by intramuscular injection of methylprednisolone.99mTc-Annexin scintigraphy and99mTc-MDP scans were performed before and 5, 6, and 8 weeks after methylprednisolone administration. Rabbits were sacrificed at various time points and conducted for TUNEL and H&E staining.Results. All methylprednisolone treated animals developed femoral head necrosis; at 8 weeks postinjection, destruction of bone structure was evident in H&E staining, and apoptosis was confirmed by the TUNEL assay. This was matched by99mTc-Annexin V images, which showed a significant increase in signal over baseline. Serial99mTc-Annexin V scans revealed that increased99mTc-Annexin V uptake could be observed in 5 weeks. In contrast, there was no effect on99mTc-MDP signal until 8 weeks. The TUNEL assay revealed that bone cell apoptosis occurred at 5 weeks.Conclusion.99mTc-Annexin V is superior to99mTc-MDP for the early detection of glucocorticoid-induced femoral head necrosis in the rabbit and may be a better strategy for the early detection of glucocorticoid-induced femoral head necrosis in patients.


Radiology ◽  
1999 ◽  
Vol 213 (3) ◽  
pp. 715-722 ◽  
Author(s):  
Kyung-Hoi Koo ◽  
In-Oak Ahn ◽  
Rokho Kim ◽  
Hae-Ryong Song ◽  
Soon-Taek Jeong ◽  
...  

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