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Guo R, Xu J, Ma Y, Teng G, Chen Y, Xu X. Effect of high hydrostatic pressure treatment on the antioxidant activity of lactoferrin before and after gastrointestinal digestion. Food Chem 2024; 433:137350. [PMID: 37683477 DOI: 10.1016/j.foodchem.2023.137350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 07/29/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
In this study, high hydrostatic pressure treatment of lactoferrin was used to investigate its effect on the hydrolysis and antioxidant activity of lactoferrin. The results showed that high hydrostatic pressure treatment at 600 MPa increased the exposure level of tryptophan residues of lactoferrin by 82.29%, which significantly altered the tertiary structure of lactoferrin, and this change was observed in scanning electron microscopy as an increase in the contact area of lactoferrin that could be contacted by proteases. Pressure treatments of 400 MPa and above increased the hydrolysis of lactoferrin for gastrointestinal digestion by 21.19%, which increased the release of antioxidant-related amino acids and increased the free radical scavenging capacity of lactoferrin intestinal digestive fluid by 35.12%. Meanwhile, two lactoferrin antioxidant peptides, QAYPNLCQLCK and NCPDKFCLFK, were identified in the lactoferrin intestine digest. These findings indicate that high hydrostatic pressure treatment could be a potentially beneficial method for processing lactoferrin.
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Affiliation(s)
- Ruibin Guo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Jinzhao Xu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yinlong Ma
- Hubei Danone Food & Beverage Co., LTD., Wuhan, Hubei 430040, China
| | - Guoxin Teng
- Inner Mongolia Mengniu Dairy Co., Ltd, Inner Mongolia 011500, China
| | - Yidan Chen
- Inner Mongolia Mengniu Dairy Co., Ltd, Inner Mongolia 011500, China
| | - Xiaoxi Xu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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Yin G, Liu L, Yu T, Yu L, Feng M, Zhou C, Wang X, Teng G, Ma Z, Zhou W, Ye C, Zhang J, Ji C, Zhao L, Zhou P, Guo Y, Meng X, Fu Q, Zhang Q, Li L, Zhou F, Zheng C, Xiang Y, Guo M, Wang Y, Wang F, Huang S, Yu Z. Genomic and transcriptomic analysis of breast cancer identifies novel signatures associated with response to neoadjuvant chemotherapy. Genome Med 2024; 16:11. [PMID: 38217005 PMCID: PMC10787499 DOI: 10.1186/s13073-024-01286-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/09/2024] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Neoadjuvant chemotherapy (NAC) has become a standard treatment strategy for breast cancer (BC). However, owing to the high heterogeneity of these tumors, it is unclear which patient population most likely benefit from NAC. Multi-omics offer an improved approach to uncovering genomic and transcriptomic changes before and after NAC in BC and to identifying molecular features associated with NAC sensitivity. METHODS We performed whole-exome and RNA sequencing on 233 samples (including matched pre- and post-treatment tumors) from 50 BC patients with rigorously defined responses to NAC and analyzed changes in the multi-omics landscape. Molecular features associated with NAC response were identified and validated in a larger internal, and two external validation cohorts, as well as in vitro experiments. RESULTS The most frequently altered genes were TP53, TTN, and MUC16 in both pre- and post-treatment tumors. In comparison with pre-treatment tumors, there was a significant decrease in C > A transversion mutations in post-treatment tumors (P = 0.020). NAC significantly decreased the mutation rate (P = 0.006) of the DNA repair pathway and gene expression levels (FDR = 0.007) in this pathway. NAC also significantly changed the expression level of immune checkpoint genes and the abundance of tumor-infiltrating immune and stroma cells, including B cells, activated dendritic cells, γδT cells, M2 macrophages and endothelial cells. Furthermore, there was a higher rate of C > T substitutions in NAC nonresponsive tumors than responsive ones, especially when the substitution site was flanked by C and G. Importantly, there was a unique amplified region at 8p11.23 (containing ADGRA2 and ADRB3) and a deleted region at 3p13 (harboring FOXP1) in NAC nonresponsive and responsive tumors, respectively. Particularly, the CDKAL1 missense variant P409L (p.Pro409Leu, c.1226C > T) decreased BC cell sensitivity to docetaxel, and ADGRA2 or ADRB3 gene amplifications were associated with worse NAC response and poor prognosis in BC patients. CONCLUSIONS Our study has revealed genomic and transcriptomic landscape changes following NAC in BC, and identified novel biomarkers (CDKAL1P409L, ADGRA2 and ADRB3) underlying chemotherapy resistance and poor prognosis, which could guide the development of personalized treatments for BC.
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Affiliation(s)
- Gengshen Yin
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Liyuan Liu
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Ting Yu
- Research Center for Mathematics and Interdisciplinary Sciences, Shandong University, Qingdao, 266237, China
| | - Lixiang Yu
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Man Feng
- Department of Pathology, The Third Affiliated Hospital of Shandong First Medical University (Affiliated Hospital of Shandong Academy of Medical Sciences), Jinan, 250031, China
| | - Chengjun Zhou
- Department of Pathology, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Xiaoying Wang
- Department of Pathology, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Guoxin Teng
- Department of Pathology, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Zhongbing Ma
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Wenzhong Zhou
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Chunmiao Ye
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Jialin Zhang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Changhua Ji
- Department of Pathology, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Linfeng Zhao
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Institute of Medical Sciences, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Peng Zhou
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Yaxun Guo
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
| | - Xingchen Meng
- Department of Breast Surgery, Weifang People's Hospital, Weifang, 261041, China
| | - Qinye Fu
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Qiang Zhang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Liang Li
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Fei Zhou
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Chao Zheng
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Yujuan Xiang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Mingming Guo
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Yongjiu Wang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China
| | - Fei Wang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China.
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China.
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China.
| | - Shuya Huang
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China.
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China.
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China.
| | - Zhigang Yu
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, 250033, China.
- Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, 250033, China.
- Shandong Provincial Engineering Laboratory of Translational Research On Prevention and Treatment of Breast Disease, Jinan, 250033, China.
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Ma Y, Xu J, Guo R, Teng G, Chen Y, Xu X. In vitro gastrointestinal model for the elderly: Effect of high hydrostatic pressure on protein structures and antioxidant activities of whey protein isolate. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Chen J, Zhong B, Jin Z, Zhu H, Teng G. Abstract No. 174 Predictive value of platelet-to-lymphocyte ratio and systemic immune-inflammation in HCC patients receiving TACE plus PD-1/PD-L1 inhibitors and molecular targeted agents: a study based on multicenter cohort. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Liu A, Li K, Xu L, Si M, Teng G, Li G, Xue J, Liang S, Song W. Metformin Delays the Development of Atherosclerosis in Type 1 Diabetes Mellitus via the Methylglyoxal Pathway. Diabetes Ther 2020; 11:633-642. [PMID: 31955370 PMCID: PMC7048885 DOI: 10.1007/s13300-020-00761-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION The aim of our study was to determine the effect of metformin administration on juvenile type 1 diabetes mellitus and atherosclerosis in apolipoprotein E null (ApoE-/-) mice and to explore the mechanism involved. METHODS Eighteen male ApoE-/- mice were injected with streptozotocin to induce diabetes (diabetic group) and 18 mice who received no streptozotocin injection were assigned to the control (non-diabetic) group. Six mice in each group were then orally administered metformin, simvastatin, or vehicle, respectively, following which the mice were euthanized and tissue samples collected. RESULTS Fasting plasma glucose, low-density lipoprotein-cholesterol, and triglyceride concentrations were significantly higher in the three diabetic groups than in the three non-diabetic groups. Plasma N∈-(carboxymethyl)lysine and N∈-(carboxyethyl)lysine concentrations were higher in the diabetic mice than in the non-diabetic mice, but metformin treatment reduced these concentrations more effectively than simvastatin. All three diabetic groups demonstrated obvious arterial plaques, but these were largest in the vehicle-treated diabetic group. The expression of extracellular nitric oxide synthase was highest in the simvastatin-treated non-diabetic group, and in diabetic mice it was higher in the simvastatin-treated group than in the other two groups. No significant expression of AMP-activated protein kinase (AMPK) was measured in the three diabetic groups, but a low level of AMPK expression was detected in the non-diabetic groups. CONCLUSIONS Metformin can limit the development of atherosclerosis secondary to diabetes in young diabetic mice. A possible mechanism is the removal of methylglyoxal, thereby reducing the formation of advanced glycation endproducts, rather than by lowering the blood glucose level. FUNDING This work was supported by the National Natural Science Foundation of China (81901106) and Jinan clinical medical science and technology innovation plan (201907002).
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Affiliation(s)
- Aihong Liu
- Department of Neonatal intensive care unit, The Second Hospital of Shandong University, Jinan, Shandong People’s Republic of China
| | - Kailin Li
- Department of Central Laboratory, The Second Hospital of Shandong University, Jinan, Shandong People’s Republic of China
| | - Linlin Xu
- Department of Neurology, The Second Hospital of Shandong University, Jinan, Shandong People’s Republic of China
| | - Min Si
- Department of Intensive Care Unit, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong People’s Republic of China
| | - Guoxin Teng
- Department of pathology, The Second Hospital of Shandong University, Jinan, Shandong People’s Republic of China
| | - Guimei Li
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong People’s Republic of China
| | - Jiang Xue
- Department of Pediatrics, The Second Hospital of Shandong University, Jinan, Shandong People’s Republic of China
| | - Shuang Liang
- Department of Pediatrics, The Second Hospital of Shandong University, Jinan, Shandong People’s Republic of China
| | - Wei Song
- Department of Pediatrics, The Second Hospital of Shandong University, Jinan, Shandong People’s Republic of China
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Li S, Zhu K, Yu W, Wang Y, Wang T, Guo S, Teng G, Guo J. Synchronous Neoplastic Lesions In Referred Patients With Colorectal Cancer: A Retrospective Cohort Study. Cancer Manag Res 2019; 11:9951-9959. [PMID: 32063721 PMCID: PMC6884963 DOI: 10.2147/cmar.s229376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 11/06/2019] [Indexed: 12/21/2022] Open
Abstract
Background Synchronous neoplastic lesions are usually present in patients with colorectal cancer (CRC) at diagnosis or postoperative follow-up endoscopy. However, few studies have been published about the clinicopathological features of synchronous lesions, especially those of synchronous advanced neoplasia. This study aimed to describe synchronous lesions in patients with CRC because this knowledge may be useful for preventing the development of metachronous cancer. Material and methods We retrospectively reviewed 261 primary CRC cases with synchronous lesions referred to our hospital during a 4-year period. Personal history, habits, family history, characteristics of index cancer, and synchronous lesions were assessed. Results In total, the 261 patients with CRC had 812 synchronous adenomas and 146 advanced neoplasia. Diminutive, small, and large polyps made up 66.7%, 20.2%, and 13.1% of all lesions, respectively; 9.3% of diminutive and small adenomas were advanced neoplasia, and 45.2% of synchronous advanced lesions were subcentimeter polyps. Both synchronous non-advanced lesions and advanced lesions developed most frequently in the distal colon, followed by the proximal colon, and were least frequently found in the rectum (P < 0.001). Older age (P = 0.04) and male gender (P = 0.001) were associated with the presence of advanced neoplasia in CRC cases with synchronous neoplastic lesions. Meanwhile, the use of aspirin may be associated with a lower incidence of advanced neoplasia (P = 0.04). Conclusion Patients diagnosed with CRC require detailed clearing of the remainder of the colon at baseline coloscopy or postoperative follow-up examination, and we should take a more cautious approach to synchronous subcentimeter polyps in this group of patients.
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Affiliation(s)
- Shuai Li
- Department of Gastroenterology, The Second Hospital of Shandong University, Shandong, People's Republic of China
| | - Kongxi Zhu
- Department of Gastroenterology, The Second Hospital of Shandong University, Shandong, People's Republic of China
| | - Weihua Yu
- Department of Gastroenterology, The Second Hospital of Shandong University, Shandong, People's Republic of China
| | - Yunxia Wang
- Department of Gastroenterology, The Second Hospital of Shandong University, Shandong, People's Republic of China
| | - Teng Wang
- Department of Gastroenterology, The Second Hospital of Shandong University, Shandong, People's Republic of China
| | - Shuang Guo
- Department of Digestive Endoscopy Center, The Second Hospital of Shandong University, Shandong, People's Republic of China
| | - Guoxin Teng
- Department of Pathology, The Second Hospital of Shandong University, Shandong, People's Republic of China
| | - Jianqiang Guo
- Department of Gastroenterology, The Second Hospital of Shandong University, Shandong, People's Republic of China
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Wang L, Xu L, Peng C, Teng G, Wang Y, Xie X, Wu D. The effect of bone marrow mesenchymal stem cell and nano-hydroxyapatite/collagen I/poly-L-lactic acid scaffold implantation on the treatment of avascular necrosis of the femoral head in rabbits. Exp Ther Med 2019; 18:2021-2028. [PMID: 31452701 PMCID: PMC6704490 DOI: 10.3892/etm.2019.7800] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 06/20/2019] [Indexed: 11/06/2022] Open
Abstract
For avascular necrosis of the femoral head (ANFH), repair and regeneration are difficult because of the edema and high pressure caused by continuous ischemia and hypoxia. Core decompression (CD) is a classic method for treating early ANFH before the collapse of the femoral head; however, its effect is still controversial. To improve the therapeutic effect of CD on ANFH, a novel tissue-engineered bone (TEB) was constructed by combining bone marrow mesenchymal stem cells (BMSCs) with nano-hydroxyapatite/collagen I/poly-L-lactic acid (nHAC/PLA) scaffolds and implanting the TEB into the bone tunnel of CD. Cell attachment was observed by scanning electron microscopy and hematoxylin and eosin staining. The authors' previous studies confirmed that nHAC/PLA is an excellent scaffold material with favorable biocompatibility and no cytotoxicity. A total of 24 New Zealand rabbits with ANFH were randomly divided into three groups, as follows: Group A (n=8), pure CD; group B (n=8), CD+nHAC/PLA; and group C (n=8), CD+BMSCs-nHAC/PLA. The favorable effect of BMSCs-nHAC/PLA on angiogenesis and bone formation in necrotic areas was further evaluated via radiographic and histological analyses. Computerized tomography (CT) scanning and H&E staining showed more capillaries and new osteoid tissue in group C compared with in groups B and A. Micro-CT showed that the new bone coverage rate and implanted material degradation degree were each increased in group C compared with in group B. These results indicate that BMSCs-nHAC/PLA scaffolds may improve the curative effect of CD and provide a strategy for treating ANFH.
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Affiliation(s)
- Le Wang
- Department of Spinal Surgery, Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Leixin Xu
- Department of Orthopedics, The Fourth People's Hospital, Heze, Shandong 274100, P.R. China
| | - Changliang Peng
- Department of Spinal Surgery, Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Guoxin Teng
- Department of Pathology, Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Yu Wang
- Department of Radiology, Affiliated Hospital of Shandong Traditional Chinese Medicine University, Jinan, Shandong 250012, P.R. China
| | - Xiaoshuai Xie
- Department of Kidney Transplantation, Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Dongjin Wu
- Department of Spinal Surgery, Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
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Li Z, Xu F, Zhang Z, Lin X, Teng G, Zang F, Liu S. Morphologic Evolution and Coordinated Development of the Fetal Lateral Ventricles in the Second and Third Trimesters. AJNR Am J Neuroradiol 2019; 40:718-725. [PMID: 30894357 DOI: 10.3174/ajnr.a6013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 02/13/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND PURPOSE Few investigators have studied the lateral ventricle formation related to the development of the calcarine sulcus. Our purpose was to establish the relationship between the lateral ventricles and the calcarine sulcus in the second and third trimesters. MATERIALS AND METHODS Fetal brain MR imaging (3T and 7T) was performed in 84 fetuses at 14-35 gestational weeks. The lateral ventricles and calcarine sulcus were 3D-reconstructed, and quantitative measurements were obtained. RESULTS The lateral ventricle volume decreases slowly at 14-23 gestational weeks and then increases rapidly at 24-35 gestational weeks. The depth and length of the calcarine sulcus develop with the increase in gestational weeks, leading to be squeezed in the lateral ventricle posterior horn. A linear correlation occurs between the calcarine sulcus length and posterior horn length: Right-length = 2.4204 (LPH) - 27.5706, Left-length = 2.0939 (LPH) - 23.4099. CONCLUSIONS The variation of lateral ventricle volume evolved from a slow to rapid increase at 14-35 gestational weeks. The shrinkage in the lateral ventricle posterior horn is accompanied by the development of the calcarine sulcus, resulting in a better linear correlation between the calcarine sulcus length and the posterior horn length. The present results are valuable in elucidating the evolution of lateral ventricle development and provide clues for the diagnosis of lateral ventricle abnormalities in the prenatal examination.
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Affiliation(s)
- Z Li
- From the Research Center for Sectional and Imaging Anatomy (Z.L., F.X., Z.Z., X.L., S.L.), Institute of Brain and Brain-Inspired Science, Shandong University Cheeloo Medical College, Shandong, China
| | - F Xu
- From the Research Center for Sectional and Imaging Anatomy (Z.L., F.X., Z.Z., X.L., S.L.), Institute of Brain and Brain-Inspired Science, Shandong University Cheeloo Medical College, Shandong, China
| | - Z Zhang
- From the Research Center for Sectional and Imaging Anatomy (Z.L., F.X., Z.Z., X.L., S.L.), Institute of Brain and Brain-Inspired Science, Shandong University Cheeloo Medical College, Shandong, China.,Department of Medical Imaging (Z.Z., X.L.), Provincial Hospital Affiliated with Shandong University, Shandong, China
| | - X Lin
- From the Research Center for Sectional and Imaging Anatomy (Z.L., F.X., Z.Z., X.L., S.L.), Institute of Brain and Brain-Inspired Science, Shandong University Cheeloo Medical College, Shandong, China.,Department of Medical Imaging (Z.Z., X.L.), Provincial Hospital Affiliated with Shandong University, Shandong, China.,Department of MR Imaging (X.L.), Shandong Medical Imaging Research Institute, Shandong, China
| | - G Teng
- Department of Radiology (G.T., F.Z.), Zhong Da Hospital, Southeast University School of Clinical Medicine, Jiangsu, China
| | - F Zang
- Department of Radiology (G.T., F.Z.), Zhong Da Hospital, Southeast University School of Clinical Medicine, Jiangsu, China
| | - S Liu
- From the Research Center for Sectional and Imaging Anatomy (Z.L., F.X., Z.Z., X.L., S.L.), Institute of Brain and Brain-Inspired Science, Shandong University Cheeloo Medical College, Shandong, China
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Xu S, Ni C, Chen L, Zhu H, Zhong B, Teng G. 4:21 PM Abstract No. 170 Prognostic predictors for the combination therapy of percutaneous catheter drainage and antibiotics in pyogenic liver abscess patients. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Zhong B, Ni C, Chen S, Teng G. 3:45 PM Abstract No. 38 Stratification and prognosis for portal vein invaded hepatocellular carcinoma treated with transarterial chemoembolization monotherapy. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Wang H, Zhou C, Su B, Teng G, Zheng Y, Zhou X, Guo L, Xu F, Wang X. MCM7 expression is correlated with histological subtypes of lung adenocarcinoma and predictive of poor prognosis. Int J Clin Exp Pathol 2017; 10:11747-11753. [PMID: 31966536 PMCID: PMC6966067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 11/28/2017] [Indexed: 06/10/2023]
Abstract
Emerging evidence has implicated that the abnormal expression of MCM3 and MCM7 contributes to tumor formation and progression. However, MCM3 and MCM7 protein expression in different subtypes of lung adenocarcinoma have not yet been reported. In the present study, we detected MCM7 and MCM3 protein level in five subtypes of lung adenocarcinoma by immunohistochemistry. The five subtypes can be divided into 3 grades-grade 1: lepidic adenocarcinoma, grade 2: acinar or papillary adenocarcinoma and grade 3: solid or micropapillary adenocarcinoma. The immunostaining showed that MCM7 level was lowest in the grade 1 subtype and highest in the grade 3 subtypes. The statistical analysis proved that MCM7 expression increased step wisely with the ascending of tumor grades. However, there is no significant relationship between MCM3 expression and tumor grades. In addition, we investigated the association of MCM7 and MCM3 expression with clinicopathological characteristics. The results showed that tumors with lymph node metastasis had higher MCM7 level than those without lymph node metastasis statistically (P<0.0001). MCM3 expression has no significant relationship with clinicopathological characteristics. In conclusion, our results suggested that MCM7 may be a useful biomarker for the pathological diagnosis of subtypes of lung adenocarcinoma and it also may be a potential prognostic marker for lung adenocarcinoma.
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Affiliation(s)
- Haitao Wang
- Department of Pathology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
| | - Chengjun Zhou
- Department of Pathology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
| | - Baifang Su
- Zhangqiu Chinese Traditional Medicine Hospital of JinanZhangqiu, Shandong, P.R. China
| | - Guoxin Teng
- Department of Pathology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
| | - Yuping Zheng
- Department of Pathology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
| | - Xingchen Zhou
- Department of Pathology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
| | - Lin Guo
- Department of Pathology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
| | - Fenglei Xu
- Department of Otorhinolaryngology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
| | - Xiaoying Wang
- Department of Pathology, The Second Hospital of Shandong UniversityJinan, Shandong, P.R. China
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Svystonyuk D, Turnbull J, Teng G, Belke D, Guzzardi D, Park D, Kang S, Fedak P. ACELLULAR EXTRACELLULAR MATRIX SCAFFOLD REPROGRAMS CARDIAC FIBROBLASTS AND PROMOTES ADAPTIVE CARDIAC REMODELING AND REPAIR. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Kang S, Verma S, Teng G, Belke D, Svystonyuk D, Guzzardi D, Park D, Turnbull J, Malik G, Fedak P. DIRECT EFFECTS OF EMPAGLIFLOZIN ON EXTRACELLULAR MATRIX REMODELING IN HUMAN CARDIAC FIBROBLASTS: NOVEL TRANSLATIONAL CLUES TO EMPA-REG OUTCOME. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.330] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Guzzardi D, Teng G, Svystonyuk D, Kang S, Park D, Belke D, Turnbull J, Fedak P. FLUOROQUINOLONE INDUCES HUMAN AORTIC FIBROBLAST-MEDIATED EXTRACELLULAR MATRIX DYSREGULATION. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Pan T, Zhu H, Guo J, Teng G. The experiment study of renal denervation in treatment of type 2 diabetes mellitus. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Pan T, Zhu H, He S, Guo J, Teng G. Correlation of height restoration and kyphosis with clinical outcome after percutaneous vertebroplasty in patients with vertebral compression fractures. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Ding W, Teng G, Xie B. Risk factors of long-term aortic dilatation after endovascular treatment for DeBakey IIIb aortic dissection. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Mewhort H, Turnbull J, Teng G, Belke D, Svystonyuk D, Guzzardi D, Duff H, Fedak P. SURGICAL APPLICATION OF A NOVEL BIOMATERIAL ATTENUATES POST-MI REMODELING AND HEART FAILURE: IMPACT OF INTERVENTION TIMING RELATIVE TO INFARCT STAGE ON FUNCTIONAL RECOVERY. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Svystonyuk D, Malik G, Mewhort H, Guzzardi D, Park D, Belke D, Teng G, Fedak P. SIS-ECM BIOMATERIAL DECREASES HUMAN CARDIAC MYOFIBROBLAST ACTIVATION AND ATTENUATES LOCAL MATRIX REMODELING. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bai Z, Zhang F, shi Y, Qiu L, Wang J, Teng G, Yang X. Radiofrequency hyperthermia (RFH)-enhanced chemotherapy of pancreatic cancers monitored by dual-modality imaging. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Teng G, Duff H, Belke D, Turnbull J, Meijndert C, Chen Y, O'Brien E, Fedak P. TETRANDRINE REVERSES HUMAN CARDIAC MYOFIBROBLAST ACTIVATION AND MYOCARDIAL FIBROSIS. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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22
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Svystonyuk D, Ngu J, Mewhort H, Guzzardi D, Lipon B, Park D, Teng G, Belke D, Fedak P. FIBROBLAST GROWTH FACTOR (FGF-2) PREVENTS HUMAN CARDIAC FIBROBLAST-MEDIATED EXTRACELLULAR MATRIX REMODELING. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Dai Y, Wilson G, Huang B, Peng M, Teng G, Zhang D, Zhang R, Ebert MPA, Chen J, Wong BCY, Chan KW, George J, Qiao L. Silencing of Jagged1 inhibits cell growth and invasion in colorectal cancer. Cell Death Dis 2014; 5:e1170. [PMID: 24722295 PMCID: PMC5424114 DOI: 10.1038/cddis.2014.137] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 02/18/2014] [Accepted: 02/26/2014] [Indexed: 01/09/2023]
Abstract
Dysregulated Notch signaling has a critical role in the tumorigenesis. Jagged1, a Notch ligand, is overexpressed in various human cancers. Recent studies revealed the involvement of Jagged1 in colorectal cancer (CRC) development. These basic studies provide a promising potential for inhibition of the Notch pathway for the treatment of CRC. Herein, we aimed to investigate the consequences of targeting Jagged1 using shRNA on CRC both in vitro and in vivo to test their potential to inhibit this key element for CRC treatment. We found that downregulation of Jagged1 with lentiviral Jagged1-shRNA resulted in decreased colon cancer cell viability in vitro, most likely mediated through reduced cell proliferation. Importantly, Jagged1 knockdown induced G0/G1 phase cell cycle arrest, with reduced Cyclin D1, Cyclin E and c-Myc expression. Silencing of Jagged1 reduced the migration and invasive capacity of the colon cancer cells in vitro. Furthermore, colon cancer cells with knockdown of Jagged1 had much slower growth rate than control cells in a xenograft mouse model in vivo, with a marked downregulation of cell proliferation markers (PCNA, Ki-67, and c-Myc) and metastasis markers (MMP-2 and MMP-9). These findings rationalize a mechanistic approach to CRC treatment based on Jagged1-targeted therapeutic development.
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Affiliation(s)
- Y Dai
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - G Wilson
- Storr Liver Unit, Westmead Millennium Institute, Department of Medicine and Western Clinical School, The University of Sydney, Westmead, NSW, Australia
| | - B Huang
- Research Center of Basic Medical Sciences and Department of Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Medical University, Tianjin, China
| | - M Peng
- Research Center of Basic Medical Sciences and Department of Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Medical University, Tianjin, China
| | - G Teng
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - D Zhang
- Research Center of Basic Medical Sciences and Department of Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Medical University, Tianjin, China
| | - R Zhang
- Research Center of Basic Medical Sciences and Department of Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Medical University, Tianjin, China
| | - M P A Ebert
- Department of Medicine II, Klinikum Rechts der Isar, Technical University, Munich, Germany
| | - J Chen
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - B C Y Wong
- Departments of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - K W Chan
- Departments of Pathology, The University of Hong Kong, Pokfulam, Hong Kong
| | - J George
- Storr Liver Unit, Westmead Millennium Institute, Department of Medicine and Western Clinical School, The University of Sydney, Westmead, NSW, Australia
| | - L Qiao
- Storr Liver Unit, Westmead Millennium Institute, Department of Medicine and Western Clinical School, The University of Sydney, Westmead, NSW, Australia
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Zan L, Zhang X, Xi Y, Wu H, Song Y, Teng G, Li H, Qi J, Wang J. Src regulates angiogenic factors and vascular permeability after focal cerebral ischemia-reperfusion. Neuroscience 2014; 262:118-28. [PMID: 24412374 DOI: 10.1016/j.neuroscience.2013.12.060] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 12/26/2013] [Accepted: 12/28/2013] [Indexed: 11/26/2022]
Abstract
Developing new strategies to treat cerebral ischemic-reperfusion injury will require a better understanding of the mechanisms that underlie vascular permeability. In this study we examined the temporal expression of Src and angiogenic factors in rat brain after focal cerebral ischemia and reperfusion and analyzed the relationships among those factors. We also investigated the effect of Src inhibitor PP1 (4-amino-5-(4-methylphenyl)-7-(t-butyl)pyrazolo[3,4-d]pyrimidine) in ischemic reperfusion. Rats were subjected to middle cerebral artery occlusion for 90 min followed by reperfusion with or without PP1 treatment. Src mRNA increased at 3h after reperfusion and then gradually declined. Phosphorylation of Src at Y418 displayed a biphasic increase. Phosphorylation increased as early as 3h and peaked at 6h; after decreasing, it peaked again at 3-7 days. Increases in Src mRNA and phosphorylation correlated positively with levels of vascular endothelial growth factor (VEGF) and angiopoietin-2 (Ang-2), and negatively with levels of angiopoietin-1 (Ang-1) and zonula occludens-1 (ZO-1). Changes in the expression of these factors correlated with the progress of vascular permeability, especially early after reperfusion. Hence, dynamic temporal changes in Src Y418 phosphorylation may modulate vascular permeability after cerebral ischemia and reperfusion. PP1 effectively decreased Src Y418 phosphorylation and the expression of VEGF and Ang-2 and increased the expression of Ang-1 and ZO-1. It also reduced cerebral infarct size and neurologic dysfunction. Therefore, Src may represent a new therapeutic target for reducing tissue damage caused by increased vascular permeability.
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Affiliation(s)
- L Zan
- Department of Pathology, Shanxi Cancer Hospital, Taiyuan, 3 Zhigong New Street, Xinghualing District, Shanxi 030013, PR China
| | - X Zhang
- Department of Colorectal Surgery, Shanxi Cancer Hospital, Taiyuan 030013, PR China
| | - Y Xi
- Department of Pathology, Shanxi Cancer Hospital, Taiyuan, 3 Zhigong New Street, Xinghualing District, Shanxi 030013, PR China
| | - H Wu
- Department of Pathology, First Affiliated of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin 150001, PR China
| | - Y Song
- Department of Digestive System, First Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China
| | - G Teng
- Department of Pathology, Jinan Lixia People's Hospital, Jinan 250014, PR China
| | - H Li
- Department of Pathology, First Affiliated of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin 150001, PR China
| | - J Qi
- Department of Pathology, First Affiliated of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin 150001, PR China.
| | - J Wang
- Department of Anesthesiology/Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
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Zhang Z, Hou Z, Lin X, Teng G, Meng H, Zang F, Fang F, Liu S. Development of the fetal cerebral cortex in the second trimester: assessment with 7T postmortem MR imaging. AJNR Am J Neuroradiol 2013; 34:1462-7. [PMID: 23413246 DOI: 10.3174/ajnr.a3406] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Few investigators have analyzed the fetal cerebral cortex with MR imaging of high magnetic strength. Our purpose was to document the sulcal development and obtain quantitative measurements of the fetal brain in the second trimester. MATERIALS AND METHODS The brains of 69 fetal specimens, with GA 12-22 weeks, were first scanned on a 7T MR imaging scanner. Then the sequential development of the different fissures and sulci was analyzed, and quantitative measurements of the cerebral cortex were obtained. RESULTS A new chronology of sulcal development during 12-22 weeks GA was summarized. Before 12 weeks, few sulci were present; by 16 weeks, many sulci were present. The 16th week could be considered the most intensive time point for sulcal emergence. Most sulci, except for the postcentral sulcus and intraparietal sulcus, were present by 22 weeks GA. Measurements of the fetal brains, each with different growth rates, linearly increased with GA, but no sexual dimorphisms or cerebral asymmetries were detected. CONCLUSIONS The second trimester is the most important phase, during which most sulci are present and can be clearly shown on 7T postmortem MR imaging. It is apparent that the specific time during which neuropathologic features of sulci appear, previously thought to be well understood, should be redefined. Quantitative data provide assistance in the precise understanding of the immature brain. The present results are valuable in anatomic education, research, and assessment of normal brain development in the uterus.
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Affiliation(s)
- Z Zhang
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Shandong, China
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Liu L, Teng G, Zhang D, Song J, He S, Guo J, Fang W. Toxicology of intrahepatic arterial administration of interventional phosphorus-32 glass microspheres to domestic pigs. Chin Med J (Engl) 1999; 112:632-6. [PMID: 11601259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
OBJECTIVE To evaluate the toxic response to intrahepatic arterial administration of radioactive phosphorus-32 glass microspheres (32P-GMS) in domestic pigs. METHODS Through selective catheterization of hepatic artery, 32P-GMS was infused to 5 healthy domestic pigs in a dosage equivalent to the therapeutic dose for human being, and 31P-GMS was infused to other 5 healthy domestic pigs. Two pigs served as the whole course blank controls. One pig from each group was surrendered to euthanasia at week 1, 2, 4, 8 and 16, respectively, and liver biopsies were performed on the rest of pigs at the corresponding time points. Liver tissues from different sites were taken for light and electron microscopy. The ultrastructural histopathological changes were evaluated semiquantitatively. RESULTS The accumulative amount of 32P-GMS in the target tissue attained more than 90% of the total dose administrated. Histologically, abnormal hepatocytes were easily found at week 1 or 2. At week 4 they were less than at week 1 or 2, and endothelium of the sinuses were damaged prominently. At week 8 they were scarcely seen, and liver tissue recovered gradually. The histological features of liver tissue restored to normal at week 16. Semiquantitative analysis of ultrastructural morphology in the experimental group showed no statistical difference (P > 0.50) between the nuclear abnormality (Nabn) and mitochrondrial variability (Mvar) at week 1 or 2, but revealed prominent difference (P < 0.01, P < 0.001) as compared with those in other groups. In the experimental group the Nabn in tissues showed no significant difference (P > 0.20) between week 8 and week 16. CONCLUSION 32P-GMS internal irradiation at the dosage equivalent to human therapeutic dosage exerts reversible injury to domestic pig liver tissue, and it takes more than 8 weeks for the injured liver tissue to recover.
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Affiliation(s)
- L Liu
- Institute of Medical Science, Nanjing Railway Medical College, Nanjing 210009, China
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Mulvany N, Ostör A, Teng G. Evaluation of estradiol in aspirated ovarian cystic lesions. Acta Cytol 1995; 39:663-8. [PMID: 7631540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
During a three-year period, 217 ovarian cystic lesions were evaluated by both fine needle aspiration (FNA) cytology and estradiol (E2) assay at Royal Women's Hospital. One hundred three ovarian lesions were subsequently subjected to histologic examination, and 79 cyst fluids were assayed for progesterone. Of the 151 cystic lesions diagnosed by cytology/histology, 50 were follicular cysts, and 90% had E2 content > 20 nmol/L. The remaining 101 nonfollicular cystic lesions represented a heterogeneous group, but 99% had E2 content < 20 nmol/L. The sensitivity of E2 content > 20 nmol/L for follicular cysts was 90% and the specificity 99%. In contrast, progesterone was elevated in follicular cyst fluid but also in many other types of cysts. Consideration of E2 content in the 66 cysts undiagnosed by histology/cytology revealed 33 follicular cysts. The precise nature of the 33 nonfollicular cystic lesions remains unknown, and further investigations, including surgery, are warranted. It is concluded that E2 assay, unlike progesterone assay, constitutes a useful ancillary diagnostic clue in the evaluation of ovarian cystic lesions in the premenopausal woman.
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Affiliation(s)
- N Mulvany
- Division of Anatomic Pathology and Cytology, Royal Women's Hospital, Melbourne, Australia
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Abstract
This study addressed 3 questions regarding empathic accuracy in a clinically relevant setting. First, does the empathic accuracy of a perceiver improve with increased exposure to a target individual? Second, can empathic accuracy be enhanced by providing the perceiver with feedback about the target's actual thoughts and feelings? Third, are there stable individual differences in empathic accuracy that generalize across different targets? The results indicated that although absolute performance levels varied from 1 target to another, empathic accuracy generally improved with increased exposure to the target. In addition, feedback concerning the target's actual thoughts and feelings accelerated the rate at which the perceivers' empathic accuracy improved. Finally, cross-target consistency in responding (alpha = .86) revealed stable individual differences in the perceivers' empathic ability. Implications of these findings for clinical training and practice are discussed.
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Affiliation(s)
- C Marangoni
- Department of Psychology, University of Texas at Arlington 76019-0528, USA
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Abstract
Bernstein and Garbin (1985b) suggested that the Minnesota Multiphasic Personality Inventory's major clinical scales (excluding Scales ? and 5) can be approximated by an oblique three-component structure: (a) Profile Elevation, (b) Test-taking Attitudes, and (c) Optimism-Pessimism, collectively termed the salient weight model. In this study, we found that both this model and the MMPI's principal component structure remain invariant across race, sex, and, as previously noted, context of testing (job applicants vs. inmates in correctional institutions). We further noted that several alternative definitions of Profile Elevation provide equally satisfactory representation of the relations among the scales. This factor invariance is necessary, but not sufficient, for the MMPI to be viewed as unbiased.
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Affiliation(s)
- I H Bernstein
- Department of Psychology, University of Texas, Arlington 76019
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Abstract
Fenigstein, Scheier, and Buss (1975) developed a three subscale inventory designed to measure self-consciousness. Burnkrant and Page (1984) used confirmatory factor analysis to evaluate the scale and concluded that five items did not belong to their assigned scales and that one of the original subscales really measured two separable traits. Burnkrant and Page's conclusions may simply reflect incidental properties of the item statistics and could weaken the scale if adopted. Fenigstein et al.'s representation fits the data quite well in its original form. However, items on their social anxiety scale also tend to evoke relatively large variability over subjects and items on their public self-consciousness scale tend to evoke relatively little variability. In other words, items on their subscales differ nearly as much statistically as they do substantively.
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Bernstein IH, Huang MH, Teng G, Lin TD. Effects of attitudes toward pornography upon male judgments of female attractiveness. Percept Psychophys 1986; 39:287-93. [PMID: 3737358 DOI: 10.3758/bf03204938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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