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Zhang Z, Zhu J, Xu Y, Gu W, Peng J, Cai G, Cai G. Adjuvant Therapy for T3N0 Rectal Cancer in the TME Era - How Do We Select High Risk Patients? Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Rimner A, Bonner P, Gonzales A, Hsu M, Zhang Z, Moskowitz C, Yahalom J. Accelerated Total Lymphoid Irradiation (TLI) as an Integral Component of High-dose Therapy (HDT) Salvage Regimen for Patients with Refractory and Relapsed Hodgkin Lymphoma (HL): 20 Years of Experience with 186 Patients. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yamada Y, Lovelock D, Zhang Z, Zelefsky M, Cox B, Fuks Z, Lis E, Bilsky M. The Impact of Dose upon the Local Control of Solid Tumor Metastases Treated with High-dose Spine Radiosurgery. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Song D, Zhang Z, Deguet A, Jain A, Burdette E, Fichtinger G. Intraoperative Dosimetry using Registered Ultrasound and Fluoroscopy during Prostate Brachytherapy: Comparison with Real-time Method using CT as a Standard. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jasinska A, Service S, Jawaheer D, DeYoung J, Levinson M, Zhang Z, Kremeyer B, Muller H, Aldana I, Garcia J, Restrepo G, Lopez C, Palacio C, Duque C, Parra M, Vega J, Ortiz D, Bedoya G, Mathews C, Davanzo P, Fournier E, Bejarano J, Ramirez M, Ortiz CA, Araya X, Molina J, Sabatti C, Reus V, Ospina J, Macaya G, Ruiz-Linares A, Freimer N. A narrow and highly significant linkage signal for severe bipolar disorder in the chromosome 5q33 region in Latin American pedigrees. Am J Med Genet B Neuropsychiatr Genet 2009; 150B:998-1006. [PMID: 19319892 PMCID: PMC4815924 DOI: 10.1002/ajmg.b.30956] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We previously reported linkage of bipolar disorder to 5q33-q34 in families from two closely related population isolates, the Central Valley of Costa Rica (CVCR) and Antioquia, Colombia (CO). Here we present follow up results from fine-scale mapping in large CVCR and CO families segregating severe bipolar disorder, BP-I, and in 343 population trios/duos from CVCR and CO. Employing densely spaced SNPs to fine map the prior linkage peak region increases linkage evidence and clarifies the position of the putative BP-I locus. We performed two-point linkage analysis with 1134 SNPs in an approximately 9 Mb region between markers D5S410 and D5S422. Combining pedigrees from CVCR and CO yields a LOD score of 4.9 at SNP rs10035961. Two other SNPs (rs7721142 and rs1422795) within the same 94 kb region also displayed LOD scores greater than 4. This linkage peak coincides with our prior microsatellite results and suggests a narrowed BP-I susceptibility regions in these families. To investigate if the locus implicated in the familial form of BP-I also contributes to disease risk in the population, we followed up the family results with association analysis in duo and trio samples, obtaining signals within 2 Mb of the peak linkage signal in the pedigrees; rs12523547 and rs267015 (P = 0.00004 and 0.00016, respectively) in the CO sample and rs244960 in the CVCR sample and the combined sample, with P = 0.00032 and 0.00016, respectively. It remains unclear whether these association results reflect the same locus contributing to BP susceptibility within the extended pedigrees.
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Zhang Z, Palli SR. Identification of a cis-regulatory element required for 20-hydroxyecdysone enhancement of antimicrobial peptide gene expression in Drosophila melanogaster. INSECT MOLECULAR BIOLOGY 2009; 18:595-605. [PMID: 19754738 DOI: 10.1111/j.1365-2583.2009.00901.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The antimicrobial peptide diptericin plays an important role in defence against microorganisms. Drosophila melanogaster diptericin mRNA levels showed an increase during the late final instar larval stage when the ecdysteroid titres increase to initiate metamorphosis. Deletion analysis in Drosophila melanogaster mbn2 (mbn2) cells identified a cis-regulatory element (AAGAAAGATCCCCTG) necessary for 20-hydroxyecdysone enhancement of peptidoglycan-induced expression of diptericin in the 3 kb diptericin promoter. Proteins extracted from mbn2 cells treated with peptidoglycan plus 20-hydroxyecdysone specifically bound to this element. 20-hydroxyecdysone also enhanced peptidoglycan-induced expression of four other antimicrobial peptide (AMP) genes--drosomycin, attacin-A, metchnikowin and cecropin A1. Moreover, in silico promoter analysis using the meme program showed that an eight-nucleotide region of the identified cis-regulatory element is present in the promoters of these four AMP genes. These studies suggest that 20-hydroxyecdysone regulates the expression of AMP genes through a conserved cis-regulatory element.
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Zhang Z, Xu H. O1052 Patient-assisted laparoscopic pain mapping in women with chronic pelvic pain. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)61425-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Xu C, Zhang Z, Hou J, Gao X, Gao X, Wang L, Sun Y. MP-16.06: Is Body Mass Index (BMI) Related to Pre-Therapy Testosterone and the Prognosis of Prostate Adenocarcinoma? Urology 2009. [DOI: 10.1016/j.urology.2009.07.820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Song G, Zhou L, Yao K, Zhang Z, Gong K, Li N, Xi Z, Wu S, Song Y, Zhang X. UP-1.071: Viviperception of Renal Vessel Variation During Retroperitoneal Laparoscopic Surgeries (Report on 525 Cases). Urology 2009. [DOI: 10.1016/j.urology.2009.07.518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wu J, Li S, Zhang Z, Li Q, Zhang W, Huang Z, Zhao Y, Shen H. UP-2.102: Ureteroscopic Treatment for Carcinomas of Upper Urinary Tract Using the Holmium Laser (Report on 2 Cases). Urology 2009. [DOI: 10.1016/j.urology.2009.07.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Dong L, Underhill HR, Yu W, Ota H, Hatsukami TS, Gao TL, Zhang Z, Oikawa M, Zhao X, Yuan C. Geometric and compositional appearance of atheroma in an angiographically normal carotid artery in patients with atherosclerosis. AJNR Am J Neuroradiol 2009; 31:311-6. [PMID: 19779001 DOI: 10.3174/ajnr.a1793] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Arterial remodeling may enable atherosclerotic disease without luminal stenosis. We sought to assess the prevalence and characteristics of atherosclerosis in angiographically normal carotid arteries. MATERIALS AND METHODS Forty-six arteries with 0% stenosis by MRA were evaluated with multicontrast carotid MR imaging at 3T. For each artery, the percentage wall volume (wall volume/[lumen volume + wall volume] x 100%) and the presence versus absence of an LRNC, calcification, IPH, and fibrous cap rupture were recorded. In addition, the relative size of each plaque component (eg, percentage LRNC = LRNC volume/wall volume x 100%), when present, was calculated. RESULTS The mean of percentage wall volume in arteries with 0% stenosis was 43.0 +/- 6.9% with a range from 31.6% to 60.1%. An LRNC was present in 67.4% (31/46) of arteries, calcification was present in 65.2% (30/46), IPH was present in 8.7% (4/46), and fibrous cap rupture was present in 4.3% (2/46). In arteries with an LRNC (n = 31), the average percentage LRNC volume was 8.8 +/- 7.3% with a range from 1.0% to 31.5%. For calcification (n = 30), the mean percentage calcification volume was 3.8 +/- 4.2% with a range of 0.1%-17.4%. The mean percentage IPH volume (n = 4) was 2.7 +/- 1.7% with a range of 0.5%-4.1%. CONCLUSIONS These findings indicate that stenosis by MRA may underestimate the presence of carotid atherosclerosis, and they demonstrate the need for improved methods for accurately identifying carotid atherosclerotic plaque severity.
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Feng ZP, Zhang Z, van Kesteren RE, Straub VA, van Nierop P, Jin K, Nejatbakhsh N, Goldberg JI, Spencer GE, Yeoman MS, Wildering W, Coorssen JR, Croll RP, Buck LT, Syed NI, Smit AB. Transcriptome analysis of the central nervous system of the mollusc Lymnaea stagnalis. BMC Genomics 2009; 10:451. [PMID: 19775440 PMCID: PMC2760584 DOI: 10.1186/1471-2164-10-451] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2009] [Accepted: 09/23/2009] [Indexed: 12/04/2022] Open
Abstract
Background The freshwater snail Lymnaea stagnalis (L. stagnalis) has served as a successful model for studies in the field of Neuroscience. However, a serious drawback in the molecular analysis of the nervous system of L. stagnalis has been the lack of large-scale genomic or neuronal transcriptome information, thereby limiting the use of this unique model. Results In this study, we report 7,712 distinct EST sequences (median length: 847 nucleotides) of a normalized L. stagnalis central nervous system (CNS) cDNA library, resulting in the largest collection of L. stagnalis neuronal transcriptome data currently available. Approximately 42% of the cDNAs can be translated into more than 100 consecutive amino acids, indicating the high quality of the library. The annotated sequences contribute 12% of the predicted transcriptome size of 20,000. Surprisingly, approximately 37% of the L. stagnalis sequences only have a tBLASTx hit in the EST library of another snail species Aplysia californica (A. californica) even using a low stringency e-value cutoff at 0.01. Using the same cutoff, approximately 67% of the cDNAs have a BLAST hit in the NCBI non-redundant protein and nucleotide sequence databases (nr and nt), suggesting that one third of the sequences may be unique to L. stagnalis. Finally, using the same cutoff (0.01), more than half of the cDNA sequences (54%) do not have a hit in nematode, fruitfly or human genome data, suggesting that the L. stagnalis transcriptome is significantly different from these species as well. The cDNA sequences are enriched in the following gene ontology functional categories: protein binding, hydrolase, transferase, and catalytic enzymes. Conclusion This study provides novel molecular insights into the transcriptome of an important molluscan model organism. Our findings will contribute to functional analyses in neurobiology, and comparative evolutionary biology. The L. stagnalis CNS EST database is available at .
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Du H, Matsushima T, Spyvee M, Goto M, Shirota H, Gusovsky F, Chiba K, Kotake M, Yoneda N, Eguchi Y, DiPietro L, Harmange JC, Gilbert S, Li XY, Davis H, Jiang Y, Zhang Z, Pelletier R, Wong N, Sakurai H, Yang H, Ito-Igarashi H, Kimura A, Kuboi Y, Mizui Y, Tanaka I, Ikemori-Kawada M, Kawakami Y, Inoue A, Kawai T, Kishi Y, Wang Y. Discovery of a potent, metabolically stabilized resorcylic lactone as an anti-inflammatory lead. Bioorg Med Chem Lett 2009; 19:6196-9. [PMID: 19783437 DOI: 10.1016/j.bmcl.2009.08.096] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 08/26/2009] [Accepted: 08/31/2009] [Indexed: 10/20/2022]
Abstract
With bioactivity-guided phenotype screenings, a potent anti-inflammatory compound f152A1 has been isolated, characterized and identified as the known natural product LL-Z1640-2. Metabolic instability precluded its use for the study on animal disease models. Via total synthesis, a potent, metabolically stabilized analog ER-803064 has been created; addition of the (S)-Me group at C4 onto f152A1 has resulted in a dramatic improvement on its metabolic stability, while preserving the anti-inflammatory activities.
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Tang D, Yin Y, Zhang Z, Gao Y, Wei Y, Chen Y, Han L. Simultaneous HPLC-DAD analysis of five flavonoids in diabetic rat plasma and its application in the study of pharmacokinetics. ACTA CHROMATOGR 2009. [DOI: 10.1556/achrom.21.2009.3.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rimner A, Bonner P, Gonzales A, Hsu M, Zhang Z, Moskowitz C, Yahalom J. 9203 Accelerated total lymphoid irradiation (TLI)-containing salvage regimen for patients with refractory and relapsed Hodgkin lymphoma (HL): 20 years outcome with multivariate analysis. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71894-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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He X, Chian R, Zhang Z, Zhou P, Wei Z, Cao Y. The process of spermatogenesis plays an important role in the pregnancy outcome of ICSI treatment for patients with azoospermic infertility. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Matsuo M, Habara Y, Takeshima Y, Awano H, Okizuka Y, Zhang Z, Yagi M. T.P.1.03 In vitro splicing analysis reveals that availability of a cryptic splice site is not a determinant for alternative splicing patterns caused by +1G>A mutations in introns of the dystrophin gene. Neuromuscul Disord 2009. [DOI: 10.1016/j.nmd.2009.06.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yi Y, Li B, Wang Z, Sun H, Gong H, Zhang Z. 6534 Cyfra21–1 and CEA are useful markers for predicting the sensitivity to chemoradiotherapy of esophageal carcinoma. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71256-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Li B, Gong H, Huang W, Yi Y, Zhang Z, Li H, Wang Z, Sun H. 6530 Phase I study of concurrent selective lymph node late course accelerated hyper-fractionated radiotherapy and pemetrexed, cisplatin for locally advanced esophageal squamous cell carcinoma. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71252-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Chang H, Xu J, Mu Q, Qin C, Zhang Z, Wu T. Occult hepatocellular carcinoma: a case report of a special icteric-type hepatoma and literature review. Eur J Cancer Care (Engl) 2009; 19:690-3. [PMID: 19659667 DOI: 10.1111/j.1365-2354.2008.01035.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hepatocellular carcinoma (HCC) presenting with obstructive jaundice due to bile duct tumour thrombi is classified as icteric-type hepatoma. This report describes a case of unusual icteric-type HCC with common bile duct thrombus, which is herein named 'occult HCC', as no detectable primary lesion in liver was defined pre-operatively and intra-operatively. A thrombectomy followed by a T biliary drainage tube placement was carried out, and the final post-operative pathological evaluation demonstrated the tumour thrombus originated from a moderately differentiated HCC. The clinicopathological features and logical clinical interventions of this rare type of HCC were discussed with a review of the literature. The HCC patients with bile duct thrombi receiving palliative biliary drainage alone had a poor outcome. With respect to improving prognosis, a curative resection of primary HCC and tumour thrombi was suggested on the basis of performing an intensive post-operative monitoring for early detection of primary liver lesion.
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Stearns V, Jacobs L, Khouri N, Jeter S, Powers P, Shahverdi K, Brown R, Rudek M, Gabrielson E, Zhang Z, Tsangaris T, Sukumar S. A phase 1 study assessing the feasibility and safety of intraductal pegylated liposomal doxorubicin (PLD) in women awaiting mastectomy. BMC Proc 2009. [PMCID: PMC2727122 DOI: 10.1186/1753-6561-3-s5-s28] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Xiao Z, Gao X, Jiang M, Zhang Z. Behavioral adaptation of Pallas's squirrels to germination schedule and tannins in acorns. Behav Ecol 2009. [DOI: 10.1093/beheco/arp096] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Guidoin R, Langevin F, Baslé MF, Alarcone C, Legrand AP, Zhang Z, Basse-Cathalinat B, Franconi JM, Douville Y, Baquey C. Can Magnetic Resonance Imaging Be the Key Technique to Visualize and Investigate Endovascular Biomaterials? ACTA ACUST UNITED AC 2009; 32:105-27. [PMID: 15027805 DOI: 10.1081/bio-120028672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Magnetic resonance imaging (MRI) is an established modality in clinical use but may be potentially underutilized to visualize and investigate biomaterials. As its use is totally contraindicated only for ferromagnetic devices, it was employed to visualize deployment, biofonctionality, healing, and biodurability of a commercially available endovascular device, namely the Medtronic-AVE AneuRx. The quality of the observations coupled with the absence of ionizing radiations are likely to make this technique an attractive imaging modality in the future. METHOD The potential benefits of the MRI technique were investigated in a GE Vectra-MR 0.5T MRI for the Medtronic-AVE AneuRx endovascular prosthesis, under different conditions: undeployed i.e., inserted in the delivery cartridge as received from the manufacturer (step 1), deployed in a mock glass-aneurysm tube (step 2), and as a pathological explant harvested at the autopsy of a patient (step 3). The device was submitted to X-rays for examination in addition to MRI. At step 3, the device was further investigated with light microscopy and scanning electron microscopy (SEM) together with X-ray diffraction. RESULTS The device which was inserted and pleated in the delivery cartridge did not demonstrate any significant observation either in MRI or in X-rays. When it was deployed in the mock aneurysmal glass tube, light artefacts were associated with the T2 weighed FSE images around the Nitinol whereas X-rays gave images of indisputable interest. Similar results were noted using the explanted device. Very high contrasts were obtained with T1 whereas T2 images were almost defect free. The X-rays allowed to accurate imaging of the Nitinol skeleton but were poor to discriminate between the different tissues. Pathology observations using light microscopy were not really challenged, as the magnetic resonance imaging was performed using a 0.5T machine. DISCUSSION The benefits of magnetic resonance imaging as a quality control technique to examine an endovascular device within its cartridge remains ill defined. Similarly, the role of conventional X-rays is unknown. The observation of devices fully deployed in a mock aneurysmal glass-tube under MRI are potentially useful but X-rays images allowed better definition. The MRI examination of the explanted device does permit observations related to the healing of the device that might be obtained in vivo and, thus offers new avenues for the follow-up of implanted devices. The pathological investigations brought additional informations about the tissues and the corrosion of the Nitinol. However, it is unlikely that MRI will permit detailed analysis of the biomaterials and in particular the corrosion process of the stents. CONCLUSION These early observations of the follow-up of devices using MRI warrant further investigation. The absence of ionizing radiation with MRI makes this technique particularly attractive. As there is no emission of ionizing radiation associated with magnetic resonance, it is recommended that further investigation using this environment friendly technique for the follow-up of devices made of biomaterials that are MRI compatible.
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Zhao J, Hu J, Wang S, Sun X, Xia L, Zhang X, Zhang Z, Jiang X. Combination of beta-TCP and BMP-2 gene-modified bMSCs to heal critical size mandibular defects in rats. Oral Dis 2009; 16:46-54. [PMID: 19619194 DOI: 10.1111/j.1601-0825.2009.01602.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To investigate the effects of mandibular defects repaired by a tissue engineered bone complex with beta-tricalcium phosphate (beta-TCP) and bone morphogenic protein-2 (BMP-2) gene-modified bone marrow stromal cells (bMSCs). MATERIALS AND METHODS bMSCs derived from Fisher 344 rats were cultured and transduced with adenovirus AdBMP-2, AdEGFP gene in vitro. Osteogenic differentiation of bMSCs was determined by alkaline phosphatase staining, von Kossa assay and reverse transcription-polymerase chain reaction. Gene transduced or untransduced bMSCs were seeded on beta-TCP scaffolds to repair mandibular full thickness defects with a diameter of 5 mm. Eight weeks post-operation, X-ray examination, micro-computerized tomography and histological and histomorphological analysis were used to evaluate the bone healing effects. RESULTS Alkaline phosphatase staining and mineralized nodules formation were more pronounced in AdBMP-2 group 14 days after gene transduction when compared with that of AdEGFP or untransduced group. The mRNA expression of osteopontin and osteocalcin also significantly increased 9 days after AdBMP-2 gene transduction. Mandibular defects were successfully repaired with AdBMP-2-transduced bMSCs/beta-TCP constructs. The percentage of new bone formation in AdBMP-2 group was significantly higher than that of other control groups. CONCLUSIONS Bone morphogenic protein-2 regional gene therapy together with beta-TCP scaffold could be used to promote mandibular repairing and bone regeneration.
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