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Fang Y, Wang H, Cao D, Cai S, Qian C, Feng M, Zhang W, Cao L, Chen H, Wei L, Mu S, Pei Z, Li J, Wang R, Wang S. Multi-center application of a convolutional neural network for preoperative detection of cavernous sinus invasion in pituitary adenomas. Neuroradiology 2024; 66:353-360. [PMID: 38236424 DOI: 10.1007/s00234-024-03287-1] [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: 10/24/2023] [Accepted: 01/07/2024] [Indexed: 01/19/2024]
Abstract
OBJECTIVE Cavernous sinus invasion (CSI) plays a pivotal role in determining management in pituitary adenomas. The study aimed to develop a Convolutional Neural Network (CNN) model to diagnose CSI in multiple centers. METHODS A total of 729 cases were retrospectively obtained in five medical centers with (n = 543) or without CSI (n = 186) from January 2011 to December 2021. The CNN model was trained using T1-enhanced MRI from two pituitary centers of excellence (n = 647). The other three municipal centers (n = 82) as the external testing set were imported to evaluate the model performance. The area-under-the-receiver-operating-characteristic-curve values (AUC-ROC) analyses were employed to evaluate predicted performance. Gradient-weighted class activation mapping (Grad-CAM) was used to determine models' regions of interest. RESULTS The CNN model achieved high diagnostic accuracy (0.89) in identifying CSI in the external testing set, with an AUC-ROC value of 0.92 (95% CI, 0.88-0.97), better than CSI clinical predictor of diameter (AUC-ROC: 0.75), length (AUC-ROC: 0.80), and the three kinds of dichotomizations of the Knosp grading system (AUC-ROC: 0.70-0.82). In cases with Knosp grade 3A (n = 24, CSI rate, 0.35), the accuracy the model accounted for 0.78, with sensitivity and specificity values of 0.72 and 0.78, respectively. According to the Grad-CAM results, the views of the model were confirmed around the sellar region with CSI. CONCLUSIONS The deep learning model is capable of accurately identifying CSI and satisfactorily able to localize CSI in multicenters.
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Affiliation(s)
- Yi Fang
- Department of Neurosurgery, the Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China
| | - He Wang
- Department of Neurosurgery, the Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - Demao Cao
- Department of Neurosurgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Jiangsu, China
| | - Shengyu Cai
- Department of Neurosurgery, the Second Affiliated Hospital, Fujian Medical University, Quanzhou, China
| | - Chengxing Qian
- Department of Neurosurgery, the Tongling People's Hospital, Tongling, China
| | - Ming Feng
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China
| | - Wentai Zhang
- Department of Neurosurgery, the Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - Lei Cao
- Department of Neurosurgery, the Tiantan Hospital, Capital Medical University, Beijing, China
| | - Hongjie Chen
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China
| | - Liangfeng Wei
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China
| | - Shuwen Mu
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China
| | - Zhijie Pei
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China
| | - Jun Li
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China
| | - Renzhi Wang
- Department of Neurosurgery, the Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China.
- Chinese University of Hong Kong (Shenzhen) School of Medicine, Shenzhen, Guangdong, People's Republic of China.
| | - Shousen Wang
- Department of Neurosurgery, Fuzhou 900TH Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China.
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Pei Z, Fang Y, Mu S, Li J, Feng T, Lin K, Wang S. Perioperative fluctuation and overall evaluation of adenohypophyseal hormone secretion in patients with nonfunctioning pituitary adenoma. Neurosurg Focus 2022; 53:E10. [PMID: 36455276 DOI: 10.3171/2022.9.focus226] [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: 01/08/2022] [Accepted: 09/26/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVE Perioperative adenohypophyseal hormone assessment can improve therapeutic strategies and be used to evaluate the prognosis of pituitary adenomas. An individual hormone level does not entirely reflect the pituitary gland. Thus, this study aimed to analyze perioperative hormonal changes and propose a normalized method to facilitate overall assessment of the adenohypophysis. METHODS The authors retrospectively analyzed 89 male patients with nonfunctioning pituitary adenoma (NFPA) who underwent transsphenoidal surgery. Preoperative clinical data, imaging data, and perioperative hormone levels of the anterior pituitary gland were evaluated. Hormone values were rescaled using minimum-maximum normalization. The sum of the normalized hormone levels was defined as the total hormonal rate (THR). RESULTS Preoperative findings indicated correlations among different adenohypophyseal hormones. Luteinizing hormone (p = 0.62) and adrenocorticotropic hormone (p = 0.89) showed no significant changes after surgery, but growth hormone levels increased (p < 0.001). On the contrary, the levels of thyroid-stimulating hormone (p < 0.001), follicle-stimulating hormone (p = 0.02), and prolactin (p < 0.001) decreased. THR indicated a significant postoperative reduction in adenohypophyseal function (p = 0.04). Patients with postoperative hypopituitarism had significantly lower THR than those without (p = 0.003), with an area under the curve of 0.66. For NFPAs that presented with normal preoperative hormone levels, THR was a good clinical predictor of immediate postoperative hypopituitarism, with an area under the curve of 0.74. CONCLUSIONS The normalized synthesis index of hormones is a novel and clinically valuable method used to reflect adenohypophyseal secretion. Compared with individual hormones, these results indicated that THR can facilitate the analysis of general hormone levels despite various fluctuations in adenohypophyseal hormones. THR may also contribute to the effective prediction of short-term surgery-induced hypopituitarism.
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Affiliation(s)
- Zhijie Pei
- 1Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Yi Fang
- 1Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Shuwen Mu
- 1Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Jun Li
- 1Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Tianshun Feng
- 2Department of Neurosurgery, Oriental Hospital Affiliated to Xiamen University, Fuzhou, Fujian, China; and
| | - Kunzhe Lin
- 3Department of Neurosurgery, Fuzhou First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China
| | - Shousen Wang
- 1Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
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Lin K, Pei Z, Zhang Y, Feng T, Wang S. Predictive factors for delayed hyponatremia after transsphenoidal surgery in patients with Rathke’s cleft cysts. Front Oncol 2022; 12:943666. [PMID: 36176407 PMCID: PMC9513476 DOI: 10.3389/fonc.2022.943666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 05/14/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2022] Open
Abstract
Purpose We aimed to assess factors influencing the occurrence of delayed hyponatremia after transsphenoidal surgery in patients with Rathke’s cleft cysts (RCCs). Methods We retrospectively collected the clinical data of patients who underwent transsphenoidal surgery for RCCs from January 2014 to January 2022. Univariate and multivariate analyses were used to determine the factors influencing the occurrence of postoperative delayed hyponatremia. Results Of the 78 microscopic transsphenoidal surgery recipients with RCCs, 15 experienced postoperative delayed hyponatremia. There were 35 men and 43 women, and mean age was 43.75 ± 14.95 years. The clinical manifestations of RCCs were headache (62 cases, 79.5%), visual dysfunction (35 cases, 44.9%), endocrine dysfunction symptoms (12 cases, 15.4%). After transsphenoidal surgery, 93.5% (58/62) had improvements in headache, and 97.1% (34/35) had improved or resolved compressive visual symptoms. Delayed hyponatremia occurred on average on day 6.46 and lasted on average for 4.40 days. Logistic regression analysis showed that the independent influencing factor of delayed hyponatremia after transsphenoidal surgery in patients with RCCs was postoperative diaphragma sellae height. Conclusion Postoperative diaphragma sellae height was identified as an independent influencing factor for delayed hyponatremia after transsphenoidal surgery in patients with RCCs.
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Affiliation(s)
- Kunzhe Lin
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, 900Hospital of Joint Logistics Support Force, Fuzhou, China
| | - Zhijie Pei
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, 900Hospital of Joint Logistics Support Force, Fuzhou, China
| | - Yibin Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Tianshun Feng
- Department of Neurosurgery, Dongfang Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Shousen Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, 900Hospital of Joint Logistics Support Force, Fuzhou, China
- *Correspondence: Shousen Wang,
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Feng T, Fang Y, Pei Z, Li Z, Chen H, Hou P, Wei L, Wang R, Wang S. A Convolutional Neural Network Model for Detecting Sellar Floor Destruction of Pituitary Adenoma on Magnetic Resonance Imaging Scans. Front Neurosci 2022; 16:900519. [PMID: 35860294 PMCID: PMC9289618 DOI: 10.3389/fnins.2022.900519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 05/30/2022] [Indexed: 11/29/2022] Open
Abstract
Objective Convolutional neural network (CNN) is designed for image classification and recognition with a multi-layer neural network. This study aimed to accurately assess sellar floor invasion (SFI) of pituitary adenoma (PA) using CNN. Methods A total of 1413 coronal and sagittal magnetic resonance images were collected from 695 patients with PAs. The enrolled images were divided into the invasive group (n = 530) and the non-invasive group (n = 883) according to the surgical observation of SFI. Before model training, 100 images were randomly selected for the external testing set. The remaining 1313 cases were randomly divided into the training and validation sets at a ratio of 80:20 for model training. Finally, the testing set was imported to evaluate the model performance. Results A CNN model with a 10-layer structure (6-layer convolution and 4-layer fully connected neural network) was constructed. After 1000 epoch of training, the model achieved high accuracy in identifying SFI (97.0 and 94.6% in the training and testing sets, respectively). The testing set presented excellent performance, with a model prediction accuracy of 96%, a sensitivity of 0.964, a specificity of 0.958, and an area under the receptor operator curve (AUC-ROC) value of 0.98. Four images in the testing set were misdiagnosed. Three images were misread with SFI (one with conchal type sphenoid sinus), and one image with a relatively intact sellar floor was not identified with SFI. Conclusion This study highlights the potential of the CNN model for the efficient assessment of PA invasion.
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Affiliation(s)
- Tianshun Feng
- Department of Neurosurgery, Dongfang Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yi Fang
- Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhijie Pei
- Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Ziqi Li
- Department of Neurosurgery, Dongfang Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Hongjie Chen
- Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Pengwei Hou
- Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Liangfeng Wei
- Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Renzhi Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Renzhi Wang,
| | - Shousen Wang
- Department of Neurosurgery, Dongfang Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Shousen Wang,
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Pei Z, Wang J, Mu S, Feng T, Wang M, Yu S, Wei L, Fang Y, Wang S. Microscopic Transsphenoidal Resection of Giant Pituitary Adenomas: Analysis of the Factors Limiting the Degree of Resection in 73 Cases. Front Neurol 2022; 13:880732. [PMID: 35711254 PMCID: PMC9195514 DOI: 10.3389/fneur.2022.880732] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/10/2022] [Indexed: 11/22/2022] Open
Abstract
Purpose To analyze the risk factors affecting the gross-total resection of giant pituitary adenomas using a transsphenoidal approach under a microscope to provide a reference basis for formulating an appropriate surgical strategy. Methods The clinical data of patients who underwent microscopic transsphenoidal resection of giant pituitary adenomas in a single center from January 2011 to December 2020 were retrospectively analyzed. Based on magnetic resonance imaging and surgical records, the predictive factors affecting the gross-total resection of giant pituitary adenomas under microscopy were determined through univariate and multivariate analyses. Results A total of 73 patients with giant pituitary adenomas underwent transsphenoidal microsurgery. Gross-total resection was performed in 19 cases (26%), subtotal resection in 31 cases (42%), partial resection in 21 cases (29%), and the degree of resection was <50% in only two cases (3%). After binary logistic analysis, it was found that it was more difficult to completely remove giant pituitary adenomas with a Knosp grade 3–4 [odds ratio (OR) = 0.214, 95% confidence interval (CI): 0.05–0.917; P = 0.038], greater proportion of tumor suprasellar volume (odds ratio = 0.937, 95% confidence interval: 0.898–0.978; P = 0.003), and intraoperative evidence of invasion of the cavernous sinus (odds ratio = 0.187, 95% CI: 0.039–0.898; P = 0.036). Conclusion It is difficult to remove a giant pituitary adenoma invading the cavernous sinus completely with a higher degree of invasion of the suprasellar region using microscopic transsphenoidal surgery. The combined application of multiple surgical methods can help to improve the degree of resection during a single operation.
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Affiliation(s)
- Zhijie Pei
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Jiaxing Wang
- Department of Neurosurgery, The First Hospital of Yichang, The People's Hospital of China Three Gorges University, Yichang, China
| | - Shuwen Mu
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Tianshun Feng
- Department of Neurosurgery, Oriental Hospital Affiliated to Xiamen University, Fuzhou, China
| | - Meina Wang
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Shentong Yu
- Department of Pathology, The 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Liangfeng Wei
- Department of Neurosurgery, The 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Yi Fang
- Department of Neurosurgery, The 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Shousen Wang
- Department of Neurosurgery, The 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
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Gong Y, Li G, Tao J, Wu NN, Kandadi MR, Bi Y, Wang S, Pei Z, Ren J. Corrigendum to: "Double knockout of Akt2 and AMPK accentuates high fat diet-induced cardiac anomalies through a cGAS-STING-mediated mechanism" [Biochim Biophys Acta Mol. Basis Dis. 1866 2020; (10): 165855. PMID: 32512189]. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166457. [PMID: 35717934 DOI: 10.1016/j.bbadis.2022.166457] [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: 11/17/2022]
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Pei Z, Lin K, Wang J, Wang S. Sphenoid sinus mucosal edema may provide the indication for emergency surgery in ischemic pituitary adenoma stroke. Asian J Surg 2022; 45:2370-2371. [DOI: 10.1016/j.asjsur.2022.05.055] [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] [Received: 04/14/2022] [Accepted: 05/13/2022] [Indexed: 11/25/2022] Open
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Fang Y, Wang H, Feng M, Chen H, Zhang W, Wei L, Pei Z, Wang R, Wang S. Application of Convolutional Neural Network in the Diagnosis of Cavernous Sinus Invasion in Pituitary Adenoma. Front Oncol 2022; 12:835047. [PMID: 35494041 PMCID: PMC9047893 DOI: 10.3389/fonc.2022.835047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/14/2021] [Accepted: 03/15/2022] [Indexed: 11/24/2022] Open
Abstract
Objectives Convolutional neural network (CNN) is a deep-learning method for image classification and recognition based on a multi-layer NN. In this study, CNN was used to accurately assess cavernous sinus invasion (CSI) in pituitary adenoma (PA). Methods A total of 371 patients with PA were enrolled in the retrospective study. The cohort was divided into the invasive (n = 102) and non-invasive groups (n = 269) based on surgically confirmed CSI. Images were selected on the T1-enhanced imaging on MR scans. The cohort underwent a fivefold division of randomized datasets for cross-validation. Then, a tenfold augmented dataset (horizontal flip and rotation) of the training set was enrolled in the pre-trained Resnet50 model for transfer learning. The testing set was imported into the trained model for evaluation. Gradient-weighted class activation mapping (Grad-CAM) was used to obtain the occlusion map. The diagnostic values were compared with different dichotomizations of the Knosp grading system (grades 0-1/2-4, 0-2/3a-4, and 0-3a/3b-4). Results Based on Knosp grades, 20 cases of grade 0, 107 cases of grade 1, 82 cases of grade 2, 104 cases of grade 3a, 22 cases of grade 3b, and 36 cases of grade 4 were recorded. The CSI rates were 0%, 3.7%, 18.3%, 37.5%, 54.5%, and 88.9%. The predicted accuracies of the three dichotomies were 60%, 74%, and 81%. The area under the receiver operating characteristic (AUC-ROC) of Knosp grade for CSI prediction was 0.84; the cutoff was 2.5 with a Youden value of 0.62. The accuracies of the CNN model ranged from 0.80 to 0.96, with AUC-ROC values ranging from 0.89 to 0.98. The Grad-CAM saliency maps confirmed that the region of interest of the model was around the sellar region. Conclusions We constructed a CNN model with a high proficiency at CSI diagnosis. A more accurate CSI identification was achieved with the constructed CNN than the Knosp grading system.
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Affiliation(s)
- Yi Fang
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fuzhou General Hospital, Fuzhou, China
| | - He Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ming Feng
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongjie Chen
- Department of Neurosurgery, Fuzhou General Hospital, Fuzhou, China
| | - Wentai Zhang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Liangfeng Wei
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fuzhou General Hospital, Fuzhou, China
| | - Zhijie Pei
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fuzhou General Hospital, Fuzhou, China
| | - Renzhi Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Shousen Wang, ; Renzhi Wang,
| | - Shousen Wang
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fuzhou General Hospital, Fuzhou, China
- *Correspondence: Shousen Wang, ; Renzhi Wang,
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Lin K, Lu L, Pei Z, Mu S, Huang S, Wang S. Predictive factors for delayed hyponatremia after transsphenoidal surgery in patients with pituitary adenomas. Endocr Connect 2022; 11:EC-21-0497. [PMID: 34860173 PMCID: PMC8789016 DOI: 10.1530/ec-21-0497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 12/03/2021] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the incidence and duration of delayed hyponatremia and to assess the factors influencing the development of delayed hyponatremia after transsphenoidal surgery (TSS) in pituitary adenomas. METHODS We retrospectively analyzed the clinical data of patients with pituitary adenoma who underwent TSS. Univariable and multivariable statistics were carried out to identify factors independently associated with the occurrence of delayed hyponatremia. RESULTS Of the 285 patients with pituitary adenoma who underwent microscopic TSS, 44 (15.4%) developed postoperative-delayed hyponatremia and 241 (84.6%) did not. The onset of delayed hyponatremia occurred an average of 5.84 days post-surgery and persisted for an average of 5.36 days. Logistic regression analysis showed the highest risk of delayed hyponatremia in patients with significant change in tumor cavity height (odds ratio (OR), 1.158; 95% CI, 1.062, 1.262; P = 0.001), preoperative hypothalamus-pituitary-thyroid axis hypofunction (OR, 3.112; 95% CI, 1.481, 6.539; P = 0.003), and significant difference in blood sodium levels before and 2 days after TSS (OR, 1.101; 95% CI, 1.005, 1.206; P = 0.039). CONCLUSIONS Preoperative hypothyroidism, difference in blood sodium levels before and 2 days after TSS, and the change in tumor cavity height after TSS played important roles in predicting postoperative-delayed hyponatremia onset in patients with pituitary adenomas.
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Affiliation(s)
- Kunzhe Lin
- Department of Neurosurgery, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, China
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Lingling Lu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Zhijie Pei
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Shuwen Mu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Shaokuan Huang
- Department of Neurosurgery, Guiqian International General Hospital, Guiyang, China
- Correspondence should be addressed to S Huang or S Wang: or
| | - Shousen Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, 900th Hospital, Fuzhou, China
- Correspondence should be addressed to S Huang or S Wang: or
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Lin K, Zhang J, Lin Y, Pei Z, Wang S. Metabolic Characteristics and M2 Macrophage Infiltrates in Invasive Nonfunctioning Pituitary Adenomas. Front Endocrinol (Lausanne) 2022; 13:901884. [PMID: 35898456 PMCID: PMC9309300 DOI: 10.3389/fendo.2022.901884] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/09/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate the metabolic differences between invasive and non-invasive nonfunctioning pituitary adenomas (NFPAs), determine the expression of an M2 macrophage marker in NFPAs, and analyze the effects of metabolic changes in invasive NFPAs on M2 macrophage infiltrates. METHODS Tissue samples of NFPAs from patients who underwent transsphenoidal or craniotomy surgery from January 2021 to August 2021 were collected. NFPA tissues were analyzed based on a gas chromatography-mass spectrometry non-targeted metabolomics platform, and immunohistochemical staining for M2 macrophage marker CD206 was performed. RESULTS We evaluated 15 invasive and 21 non-invasive NFPAs. A total of 22 metabolites were identified through non-targeted metabolomics analysis. Among them, the expression of 1-octadecanol, inosine 5'-monophosphate, adenosine 5'-monophosphate, guanosine 5'-monophosphate, creatinine, desmosterol, taurine, hypotaurine, lactic acid, and succinic acid was upregulated in invasive NFPAs, while that of 1-oleoylglycerol, arachidonic acid, cis-11-eicosenoic acid, docosahexaenoic acid, glyceric acid, hypoxanthine, linoleic acid, lysine, oleic acid, uracil, valine, and xanthine was downregulated. Immunohistochemical analysis suggested that the number of CD206-positive cells was higher in invasive NFPAs than in non-invasive NFPAs. CONCLUSION Invasive and non-invasive NFPAs showed distinct metabolite profiles. The levels of succinic acid and lactic acid were higher in invasive NFPAs, and the high expression of the M2 macrophage marker was verified in invasive NFPAs.
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Affiliation(s)
- Kunzhe Lin
- Department of Neurosurgery, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, China
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Jianping Zhang
- Department of Urology, 910th Hospital of Joint Logistics Support Force, Quanzhou, China
| | - Yinghong Lin
- College of Integrated Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Zhijie Pei
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Shousen Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, 900th Hospital, Fuzhou, China
- *Correspondence: Shousen Wang,
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Lin K, Pei Z, Li J, Wang S. In Reply: Manifestations of Water and Sodium Disorders Following Surgery for Sellar Lesions. Neurosurgery 2021; 89:E327. [PMID: 34424340 DOI: 10.1093/neuros/nyab329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kunzhe Lin
- Fuzong Clinical Medical College of Fujian Medical University Fuzhou, China
| | - Zhijie Pei
- Fuzong Clinical Medical College of Fujian Medical University Fuzhou, China
| | - Jun Li
- Department of Neurosurgery 900th Hospital Fuzong Clinical Medical College of Fujian Medical University Fuzhou, China
| | - Shousen Wang
- Department of Neurosurgery 900th Hospital Fuzong Clinical Medical College of Fujian Medical University Fuzhou, China
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Lin K, Li J, Lu L, Zhang S, Mu S, Pei Z, Wang C, Lin J, Xue L, Wei L, Zhao L, Wang S. Diaphragma sellae sinking can predict the onset of hyponatremia after transsphenoidal surgery for pituitary adenomas. J Endocrinol Invest 2021; 44:2511-2520. [PMID: 34128213 DOI: 10.1007/s40618-021-01611-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/05/2021] [Indexed: 12/16/2022]
Abstract
PURPOSE Sinking of the diaphragma sellae (DS) may stretch the pituitary stalk, which in turn impairs neurohypophyseal function; thus, it may play a role in the development of postoperative hyponatremia. We aimed to assess the factors influencing the development of hyponatremia after transsphenoidal surgery (TSS) for pituitary adenomas and analyze the effect of DS sinking on hyponatremia. METHODS After applying the inclusion and exclusion criteria, we retrospectively analyzed the clinical data of patients with pituitary adenoma who underwent TSS. The pituitary gland was scanned using a 3.0-T magnetic resonance imaging, and sagittal and coronal images were acquired. We evaluated the following: preoperative and postoperative hypothalamus‒pituitary‒thyroid axis function, hypothalamus‒pituitary‒adrenal axis function, intra-operative cerebrospinal fluid leaks, diabetes insipidus, hyponatremia, time from the day of surgery to the day of discharge, and time of hyponatremia onset. RESULTS Of the 460 patients who had microscopic TSS for pituitary adenoma, 83 experienced postoperative hyponatremia. Hyponatremia occurred approximately 5.25 days postoperatively and persisted for 5.54 days. The lowest average blood sodium level was 123.9 mEq/L, which occurred at 7.49 days after surgery. Logistic regression analysis showed that the risk of hyponatremia was greater for patients with a significant DS sinking depth, a large pituitary stalk deviation angle difference, and a longer postoperative "measurable pituitary stalk". The difference in blood sodium levels between pre-TSS and 2 days post-TSS was also an independent predictor of postoperative hyponatremia onset. CONCLUSION DS sinking plays an important role in predicting hyponatremia onset after TSS for pituitary adenomas.
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Affiliation(s)
- Kunzhe Lin
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Jun Li
- Department of Neurosurgery, 900th Hospital, Fuzhou, 350025, China
| | - Lingling Lu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Shangming Zhang
- Department of Neurosurgery, 900th Hospital, Fuzhou, 350025, China
| | - Shuwen Mu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Zhijie Pei
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Cheng Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China
| | - Jingying Lin
- Fuzong Clinical Medical College, Fujian University Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Liang Xue
- Department of Neurosurgery, 900th Hospital, Fuzhou, 350025, China
| | - Liangfeng Wei
- Department of Neurosurgery, 900th Hospital, Fuzhou, 350025, China
| | - Lin Zhao
- Department of Neurosurgery, 900th Hospital, Fuzhou, 350025, China
| | - Shousen Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, China.
- Department of Neurosurgery, 900th Hospital, Fuzhou, 350025, China.
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Zhang MY, Ni JW, Ge JJ, Guan YH, Pei Z, Sun CJ, Wu J, Xu ZR, Yang L, Luo FH, Cheng RQ. [Clinical features of 123 patients with hyperinsulinemic hypoglycemia auxiliarily diagnosed by 18F-DOPA-PET CT scanning]. Zhonghua Er Ke Za Zhi 2021; 59:853-858. [PMID: 34587682 DOI: 10.3760/cma.j.cn112140-20210417-00326] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To summarize the clinical features and therapeutic outcomes of patients with hyperinsulinemic hypoglycemia (HH) auxiliarily diagnosed by 18F-DOPA positron emission tomography (PET) CT scanning. Methods: The clinical data of 123 patients who were diagnosed with hyperinsulinemic hypoglycemia by comprehensive clinical diagnostic procedures in the Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University between January 2016 and December 2020 were retrospectively analyzed. Clinical data such as gender, age of onset, province, concurrent serum insulin level measured during hypoglycemia, lesion type of pancreas by 18F-DOPA-PET CT scanning, genetic test results, and treatment were collected successively. The clinical features and therapeutic outcomes were compared between patients with focal and diffuse pancreatic lesions. T test, Rank sum test, and χ² test were used for comparison between groups. Results: A total of 123 patients with hyperinsulinemic hypoglycemia (72 males and 51 females), whose average age of onset was 3 days (ranging from 1 day to 4 860 days), were recruited from 24 provinces. The concurrent serum insulin level was 7.1 (0.4-303.0) mU/L during hypoglycemia. 18F-DOPA-PET CT scanning identified focal lesions in 25.2% (31/123) and diffuse lesions in 74.8% (92/123) of the patients; 64.2% (79/123) of the HH cases were found to have pathogenic gene variants, in which 88.6% (70/79) were found to have KATP channel related genes (61 in ABCC8 and 9 in KCNJ11 mutations). Thirty-seven patients (17 focal and 20 diffuse) received surgical treatment with a success rate of 67.6% (25/37). The effective rate of diazoxide for children with diffuse type was significantly higher than that of children with focal group (28.3% (26/92) vs. 9.7% (3/31), χ²=10.31, P=0.001). Conclusions: 18F-DOPA-PET CT scan can improve the success rate of surgery. Comprehensive diagnosis of the etiology of hyperinsulinemic hypoglycemia by genetic analysis and 18F-DOPA-PET CT scanning can result in better treatment and prognosis.
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Affiliation(s)
- M Y Zhang
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J W Ni
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J J Ge
- PET Center, Huashan Hospital of Fudan University, Shanghai 200235, China
| | - Y H Guan
- PET Center, Huashan Hospital of Fudan University, Shanghai 200235, China
| | - Z Pei
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - C J Sun
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Wu
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Z R Xu
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L Yang
- the Molecular Genetic Diagnosis Center, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - F H Luo
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - R Q Cheng
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Lin K, Zeng R, Pei Z, Mu S, Yang Y, Fan Y, Huang S, Wang S. The Difference Between Preoperative and Postoperative Pituitary Stalk Deviation Angles Can Predict Delayed Hyponatremia After Transsphenoidal Surgery. World Neurosurg 2021; 155:e637-e645. [PMID: 34481103 DOI: 10.1016/j.wneu.2021.08.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/15/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Our aim was to assess the factors influencing the development of delayed hyponatremia after transsphenoidal surgery (TSS) for pituitary adenomas and analyze the effect of the difference between preoperative and postoperative pituitary stalk deviation angles on delayed hyponatremia. METHODS A retrospective study was performed on the clinical data of patients with pituitary adenomas who were treated with TSS at a single institution. On the basis of the observation of indicators such as pituitary stalk deviation angle and length of "measurable pituitary stalk" on magnetic resonance imaging, we determined the predictors of postoperative delayed hyponatremia through univariate and multivariate analyses. RESULTS Microscopic TSS was performed in 422 patients with pituitary adenoma, of whom 66 experienced postoperative delayed hyponatremia. Logistic regression analysis showed that the risk of delayed hyponatremia was greater for patients with a large difference between preoperative and postoperative pituitary stalk deviation angle (odds ratio = 1.040, 95% confidence interval: 1.018-1.051; P < 0.001) and a large difference in the "measurable pituitary stalk" (odds ratio = 1.128, 95% confidence interval: 1.011-1.258; P = 0.032), and patients with high blood sodium on the second day after surgery have a lower probability of developing delayed hyponatremia. CONCLUSIONS This study is the first to suggest the important role of the difference between preoperative and postoperative pituitary stalk deviation angles in predicting the development of delayed hyponatremia after TSS for pituitary adenomas.
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Affiliation(s)
- Kunzhe Lin
- Department of Neurosurgery, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Ran Zeng
- Department of Neurosurgery, Shanghai Donglei Brain Hospital, Qingpu, Shanghai, China
| | - Zhijie Pei
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Shuwen Mu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Yongkai Yang
- Department of Neurosurgery, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Yong Fan
- Department of Central Laboratory, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Shaokuan Huang
- Department of Neurosurgery, Guiqian International General Hospital, Guiyang, China
| | - Shousen Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China; Department of Neurosurgery, 900th Hospital, Fuzhou, Fujian, China.
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Fang Y, Pei Z, Chen H, Wang R, Feng M, Wei L, Li J, Zhang H, Wang S. Diagnostic value of Knosp grade and modified Knosp grade for cavernous sinus invasion in pituitary adenomas: a systematic review and meta-analysis. Pituitary 2021; 24:457-464. [PMID: 33491163 DOI: 10.1007/s11102-020-01122-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/31/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE This study aimed to examine the reliability of existing Knosp grade (KG) and modified KG for cavernous sinus invasion (CSI). METHODS A thorough search of literature from 1993 to 2020 in six databases was performed. Studies that reported the intraoperative confirmation of CSI using KG and/or modified KG were included. The pooled estimates were calculated by meta-analysis with a bivariate mixed-effect model and the assessment of heterogeneity with I2 statistic. RESULTS The final search yielded 12 eligible studies, which enrolled 3006 patients assessed with KG and 1315 patients assessed with modified KG. The results of the area under the receiver operating characteristic curve showed the good discriminative abilities of grades 2-4 (0.90), 3-4 (0.86) and 3B-4 (0.91) in predicting CSI. Grade 3A showed a remarkably lower CSI rate (44% versus 81%) and incomplete resection rate (26% versus 52%) than grade 3B. Grades 0 and 1 showed a low CSI rate. CSI and incomplete resection rates in grade 2 (30% and 21%, respectively) were close to those in grade 3A. CONCLUSIONS Modifying the KG improved its prognostic role in CSI and gross total resection. However, these grading systems cannot be used as the group standard for invasive and non-invasive pituitary adenomas (PAs) because of the weak reliability of the scale's middle grades (grades 2 and 3A). Authors of future PA studies should consider reporting KG as high (grades 3B and 4), medium (grades 2 and 3A) and low (grades 0 and 1) to optimise the application of the scale.
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Affiliation(s)
- Yi Fang
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Zhijie Pei
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Hongjie Chen
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Renzhi Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Ming Feng
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Liangfeng Wei
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Jun Li
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Heng Zhang
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Shousen Wang
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China.
- Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, No. 156, Xi'erhuanbei Road, Fuzhou, Fujian, China.
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Chadwick E, Le K, Pei Z, Sayahi T, Rapp C, Butterfield AE, Kelly KE. Technical note: Understanding the effect of COVID-19 on particle pollution using a low-cost sensor network. J Aerosol Sci 2021; 155:105766. [PMID: 33897001 PMCID: PMC8054662 DOI: 10.1016/j.jaerosci.2021.105766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 01/01/2021] [Accepted: 01/23/2021] [Indexed: 05/17/2023]
Abstract
The 2020 coronavirus pandemic and the following quarantine measures have led to significant changes in daily life worldwide. Preliminary research indicates that air quality has improved in many urban areas as a result of these measures. This study takes a neighborhood-scale approach to quantifying this change in pollution. Using data from a network of citizen-hosted, low-cost particulate matter (PM) sensors, called Air Quality & yoU (AQ&U), we obtained high-spatial resolution measurements compared to the relatively sparse state monitoring stations. We compared monthly average estimated PM2.5 concentrations from February 11 to May 11, 2019 at 71 unique locations in Salt Lake County, UT, USA with the same (71) sensors' measurements during the same timeframe in 2020. A paired t-test showed significant reductions (71.1% and 21.3%) in estimated monthly PM2.5 concentrations from 2019 to 2020 for the periods from March 11-April 10 and April 11-May 10, respectively. The March time period corresponded to the most stringent COVID-19 related restrictions in this region. Significant decreases in PM2.5 were also reported by state monitoring sites during March (p < 0.001 compared to the previous 5-year average). While we observed decreases in PM2.5 concentrations across the valley in 2020, it is important to note that the PM2.5 concentrations did not improve equally in all locations. We observed the greatest reductions at lower elevation, more urbanized areas, likely because of the already low levels of PM2.5 at the higher elevation, more residential areas, which were generally below 2 μg/m3 in both 2019 and 2020. Although many of measurements during March and April were near or below the estimated detection limit of the low-cost PM sensors and the federal equivalent measurements, every low-cost sensor (51) showed a reduction in PM2.5 concentration in March of 2020 compared to 2019. These results suggest that the air quality improvement seen after March 11, 2020 is due to quarantine measures reducing traffic and decreasing pollutant emissions in the region.
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Affiliation(s)
- E Chadwick
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA
| | - K Le
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA
| | - Z Pei
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA
| | - T Sayahi
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA
| | - C Rapp
- Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, USA
| | - A E Butterfield
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA
| | - K E Kelly
- Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA
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Mu S, Fang Y, Pei Z, Lin Y, Lin K, Zeng Z, Zhou L, Wang Z, Wang S. Outcomes of Preinjury Use of Statins in Patients with Traumatic Brain Injury: A Systematic Review and Meta-analysis. World Neurosurg 2021; 152:e266-e278. [PMID: 34058359 DOI: 10.1016/j.wneu.2021.05.083] [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: 04/16/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND No completely effective pharmacotherapies have been developed to improve the outcomes of traumatic brain injury (TBI). Given the reporting of cohort studies suggesting that preinjury statin use may reduce TBI-associated mortality, this study aimed to evaluate the effects of statin use in patients with TBI. METHODS This study was performed according to the PRISMA guidelines. The PubMed, Embase, Cochrane Central, Web of Science, and China National Knowledge Infrastructure databases were searched from inception until April 13, 2021, using a search strategy that included 2 main terms: "statins" and "traumatic brain injury." The outcomes were mortality, hospital length of stay, and intensive care unit length of stay, which were evaluated using a random-effects model and represented by the pooled risk ratio with 95% confidence intervals. RESULTS The search results identified 7 eligible studies, with a total of 111,935 patients with brain injury. Preinjury statin use in patients with TBI was associated with a significantly decreased risk of mortality compared with that in nonusers (risk ratio, 0.75; 95% confidence interval, 0.59-0.94; I2 = 53%). Subgroup analysis showed that statin withdrawal might increase mortality. Sensitivity analysis showed that the results were stable and robust. CONCLUSIONS Preinjury statin use may contribute to mortality reduction in patients with TBI, whereas statin withdrawal might increase mortality. In clinical management, statin use should not be discontinued after TBI.
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Affiliation(s)
- Shuwen Mu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Yi Fang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Zhijie Pei
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Yinghong Lin
- Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Kunzhe Lin
- Department of Neurosurgery, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Zihuan Zeng
- Department of Neurosurgery, 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Longmin Zhou
- Department of Neurosurgery, 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Zhengjun Wang
- Department of Gastroenterology, 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Shousen Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China; Department of Neurosurgery, 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China.
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Li X, Li X, Zeng T, Liu Y, Hu T, Huang J, Wu Y, Yu J, Pei Z, Tan L. The clinical value of serum sirtuin-1 in the diagnosis of rheumatoid arthritis: a pilot study. Br J Biomed Sci 2021; 78:191-194. [PMID: 33507129 DOI: 10.1080/09674845.2021.1880085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Introduction: Cell biology studies, animal models and other data suggest a role for sirtuin-1 in the pathogenesis of rheumatoid arthritis (RA). We hypothesized the clinical significance of serum sirtuin-1 in this disease.Methods: Serum was obtained from 141 RA patients, 144 non-RA patients and 88 healthy controls. Sirtuin-1, anti-mutant citrulline vimentin antibody (anti-MCV), anti-cyclic citrulline polypeptide antibody (anti-CCP), rheumatoid factor and C-reactive protein were measured by immunological methods, and erythrocyte sedimentation rate was determined by the Westergren method.Results: All markers were higher in the RA group than in the non-RA group and the healthy control group (P < 0.01). The specificity of sirtuin-1 for the diagnosis of RA was 97% (the highest among all markers), sensitivity was 71%. In ROC curve analysis, the AUCs (95% CI) of sirtuin-1, anti-CCP and anti-MCV were 0.87 (0.82-0.91), 0.91 (0.88-0.94) and 0.92 (0.89-0.95) respectively (all p < 0.01). The combination of sirtuin-1and anti-MCV gave the highest Youden index of 0.79, whilst Cox regression showed sirtuin-1 and rheumatoid factor were the strongest independent predictors of RA.Conclusions: Serum sirtuin-1 is increased in RA, and may have a place is the diagnosis of this disease when combined with other markers.
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Affiliation(s)
- X Li
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - X Li
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - T Zeng
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Y Liu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - T Hu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - J Huang
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Y Wu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - J Yu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Z Pei
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - L Tan
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Fang Y, Wang H, Feng M, Zhang W, Cao L, Ding C, Chen H, Wei L, Mu S, Pei Z, Li J, Zhang H, Wang R, Wang S. Machine-Learning Prediction of Postoperative Pituitary Hormonal Outcomes in Nonfunctioning Pituitary Adenomas: A Multicenter Study. Front Endocrinol (Lausanne) 2021; 12:748725. [PMID: 34690934 PMCID: PMC8529112 DOI: 10.3389/fendo.2021.748725] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/15/2021] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE No accurate predictive models were identified for hormonal prognosis in non-functioning pituitary adenoma (NFPA). This study aimed to develop machine learning (ML) models to facilitate the prognostic assessment of pituitary hormonal outcomes after surgery. METHODS A total of 215 male patients with NFPA, who underwent surgery in four medical centers from 2015 to 2021, were retrospectively reviewed. The data were pooled after heterogeneity assessment, and they were randomly divided into training and testing sets (172:43). Six ML models and logistic regression models were developed using six anterior pituitary hormones. RESULTS Only thyroid-stimulating hormone (p < 0.001), follicle-stimulating hormone (p < 0.001), and prolactin (PRL; p < 0.001) decreased significantly following surgery, whereas growth hormone (GH) (p < 0.001) increased significantly. The postoperative GH (p = 0.07) levels were slightly higher in patients with gross total resection, but the PRL (p = 0.03) level was significantly lower than that in patients with subtotal resection. The optimal model achieved area-under-the-receiver-operating-characteristic-curve values of 0.82, 0.74, and 0.85 in predicting hormonal hypofunction, new deficiency, and hormonal recovery following surgery, respectively. According to feature importance analyses, the preoperative levels of the same type and other hormones were all important in predicting postoperative individual hormonal hypofunction. CONCLUSION Fluctuation in anterior pituitary hormones varies with increases and decreases because of transsphenoidal surgery. The ML models could accurately predict postoperative pituitary outcomes based on preoperative anterior pituitary hormones in NFPA.
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Affiliation(s)
- Yi Fang
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
| | - He Wang
- Department of Neurosurgery, The Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ming Feng
- Department of Neurosurgery, The Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wentai Zhang
- Department of Neurosurgery, The Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei Cao
- Department of Neurosurgery, The Tiantan Hospital, Capital Medical University, Beijing, China
| | - Chenyu Ding
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Hongjie Chen
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
| | - Liangfeng Wei
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
| | - Shuwen Mu
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
| | - Zhijie Pei
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
| | - Jun Li
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
| | - Heng Zhang
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
| | - Renzhi Wang
- Department of Neurosurgery, The Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Shousen Wang, ; Renzhi Wang,
| | - Shousen Wang
- Department of Neurosurgery, The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, The Fuzhou General Hospital, Fuzhou, China
- *Correspondence: Shousen Wang, ; Renzhi Wang,
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Zhang Y, Yu S, Ying X, Jia B, Liu L, Liu J, Kong L, Pei Z, Ma H. iTRAQ-based quantitative proteomics analysis reveals inhibitory mechanismsof the antimicrobial peptide MDAP-2 against Salmonella gallinarum. Pol J Vet Sci 2020; 23:405-414. [PMID: 33006863 DOI: 10.24425/pjvs.2020.134685] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
MDAP-2 is a new AMP with high inhibitory activity on Salmonella gallinarum, which may be developed as an antimicrobial agent in the agricultural industry and food preservation. To investigate the underlying the action mechanism of MDAP-2 on Salmonella gallinarum, impacts of MDAP-2 on the growth curve and bacterial morphology of Salmonella gallinarum were studied. iTRAQ-based proteomics analysis was also performed on proteins extracted from treated and untreated Salmonella gallinarum cells. The differentially expressed proteins were then analyzed using the KEGG and GO databases. Finally, the function of some differentially expressed proteins was verified. The results showed that 150 proteins (41 up-regulated and 109 down-regulated) were found differentially expressed (fold > 1.8, p⟨0.05). The results indi- cate that MDAP-2 kills Salmonella gallinarum mainly through two mechanisms: (i) direct inhibi- tion of cell wall/ membrane/ envelope biogenesis, energy production/ conversion, carbohydrate transport/ metabolism, and DNA transcription/ translation through regulation of special protein levels; (ii) indirect effects on the same pathway through the accumulation of Reactive oxygen species (O2 ▪-, H2O2 and OH▪-).
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Affiliation(s)
- Y Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
| | - S Yu
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
| | - X Ying
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
| | - B Jia
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
| | - L Liu
- Jilin Medical University, Jilin Street No. 5, Jilin 132013, PR China
| | - J Liu
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
| | - L Kong
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
| | - Z Pei
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
| | - H Ma
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street No. 2888, Changchun 130118, PR China
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Wei H, Zhan LP, Zhang B, Li YP, Pei Z, Li L. dl-3n-butylphthalide reduces oxygen-glucose deprivation-induced endothelial cell damage by increasing PGC-1α. Eur Rev Med Pharmacol Sci 2020; 23:4481-4490. [PMID: 31173325 DOI: 10.26355/eurrev_201905_17960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Animal experiments verified that dl-3-n-butylphthalide (NBP) can protect vascular endothelial cells from ischemic damage and promote vascular proliferation in ischemic stroke treatment, but the underlying mechanism has not been fully clarified. This study aimed to investigate the effects of NBP on peroxisome proliferators-activated receptor-γ coactivator-1α (PGC-1α) expression in endothelial cells exposed to oxygen-glucose deprivation (OGD) and to clarify the related molecular mechanism. MATERIALS AND METHODS SV40-transformed aortic rat endothelial cell line was cultured and subjected to OGD in the presence or absence of NBP. The cell viability was evaluated by using thiazolyl blue tetrazolium bromide (MTT) method. The cellular endothelial nitric oxide synthase (eNOS) activity was measured by using eNOS activity assay. The nuclear changes were assessed with Hoechst 33342 fluorescent dye. The immunofluorescence analysis and Western blotting assay were conducted to evaluate the protein expression. RESULTS We found that NBP could significantly prevent endothelial cells from OGD-induced injuries, in terms of cell morphology and cell viability. Both immunofluorescence analysis and Western blot findings confirmed that the NBP treatment further enhanced PGC-1α expression during OGD, which was prevented in the presence of selective endothelial nitric oxide synthetase (eNOS) inhibitor N5-(1-Iminoethyl)-L-ornithine-HCL (L-NIO). Furthermore, we found that NBP could protect the eNOS activity about by 40% during OGD and did not influence the eNOS protein level in the spectrophotometric-based analysis. CONCLUSIONS NBP maintained the endothelial PGC-1α expression via regulating eNOS activity during the exposure to OGD; therefore, it presented its protective function to cell viability and vascular proliferation.
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Affiliation(s)
- H Wei
- Department of Neurology, Affiliated Yan'an Hospital of Kunming Medical University, Cardiovascular Disease Hospital of Yunnan Province, Kunming, China.
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Hu T, Liu Y, Tan L, Huang J, Yu J, Wu Y, Pei Z, Zhang X, Li J, Song L, Dai W, Xiang Y. Value of serum collagen triple helix repeat containing-1(CTHRC1) and 14-3-3η protein compared to anti-CCP antibodies and anti-MCV antibodies in the diagnosis of rheumatoid arthritis. Br J Biomed Sci 2020; 78:67-71. [PMID: 32813981 DOI: 10.1080/09674845.2020.1810400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Serological markers are important in the diagnosis of rheumatoid arthritis (RA) and other connective tissues diseases This study explored the clinical value of collagen triple helix repeat containing-1 (CTHRC1) and 14-3-3η protein, compared to routine markers, in the diagnosis of RA. METHODS We recruited 103 RA patients, 105 non-RA patients (osteoarthritis, ankylosing spondylitis, systemic lupus erythematosus) and 59 healthy controls. CTHRC1, 14-3-3η, anti-cyclic citrullinated peptide antibody (anti-CCP), anti-mutated citrullinated vimentin antibody (anti-MCV), rheumatoid factor and erythrocyte sedimentation rate (ESR) levels were measured, and their diagnostic value for RA evaluated and compared. RESULTS All laboratory indices were elevated in RA (P < 0.05). Of these, anti-MCV had the highest sensitivity (86.4%) and anti-CCP the highest specificity (94.5%). The areas under the curve (AUC) of CTHRC1, 14-3-3η, anti-CCP, anti-MCV, rheumatoid factor and ESR were 0.84, 0.81, 0.89, 0.91, 0.85 and 0.77 respectively (all P < 0.01). Anti-CCP and anti-MCV were the most valuable in the diagnosis of RA. The combination of anti-CCP and anti-MCV had the maximum Youden index, followed by the combination of anti-CCP and 14-3-3η. Binary logistic regression analysis showed that 14-3-3η had the largest odds ratio value (95% CI) at 5.1 (2.1-12.5) for RA. CONCLUSION CTHRC1 and 14-3-3η are promising serological indicators of RA, and when combined with anti-CCP, anti-MCV and ESR, can improve the diagnosis of this disease.
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Affiliation(s)
- T Hu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - Y Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - L Tan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - J Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - J Yu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
| | - Y Wu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - Z Pei
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - X Zhang
- Second Affiliated Hospital of Nanchang University. Department of Clinical Laboratory, The Third Hospital of Nanchang City , Nanchang, Jiangxi Province, China
| | - J Li
- Gannan Health and Vocational College, Ganzhou, China
| | - L Song
- Department of Clinical Laboratory, The Ganzhou People's Hospital, Ganzhou, China
| | - W Dai
- Department of Clinical Laboratory, The Ganzhou People's Hospital, Ganzhou, China
| | - Y Xiang
- Department of Clinical Laboratory, the Yingtan People's Hospital, Yingtan, Jiangxi, China
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Shen L, Li J, Miao Z, Xu N, Liu B, Li X, Zhang Q, Gao Q, Zhao Y, Pan H, Pei Z, Li W, Xia H, Wang J, Dai H, Shi Q, Yang J. 1445P CS1001, an anti-PD-L1 antibody, combined with standard of care (SOC) chemotherapy for first line (1L) advanced GC/GEJ and ESCC: Preliminary results from 2 phase Ib cohorts of CS1001-101 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Pei Z, Ding ZT, Li Z, Guan ZP. [Comparison of the early efficacy of unicompartmental and total knee arthroplasty in patients with medial compartmental osteoarthritis of the knee: a propensity score matching study]. Zhonghua Wai Ke Za Zhi 2020; 58:452-456. [PMID: 32498485 DOI: 10.3760/cma.j.cn112139-20200322-00244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the short-term efficacy of unicompartmental knee arthroplasty (UKA) and total knee arthroplasty(TKA) in the treatment of medial compartmental knee osteoarthritis. Methods: A retrospective analysis was performed on 197 patients with medial compartment osteoarthritis of the knee treated by the same group of doctors from January 2015 to December 2018.There were 86 males and 111 females, aged (67.7±10.5) years (range: 46 to 92 years), among which 101 cases received UKA and 96 cases received TKA.The UKA and TKA patients were matched by the propensity score matching method, and a total of 41 pairs of patients were successfully matched.The difference of short-term outcomes between the two groups were compared by t test, χ(2) test or Fisher exact probability methods. Results: Compared with TKA group, the postoperative reduction of hemogloblin in the UKA group was lower ((15.3±6.4) g/L vs. (20.1±7.5) g/L, t=-3.117, P<0.01), opioid dosage was lower ((160.5±29.3) mg vs. (186.1±46.8) mg, t=-2.969, P<0.01), and the length of hospital stay was shorter ((7.0±2.0)d vs. (10.0±2.5)d, t=-6.000, P<0.01). Forgotten joint score of UKA group was higher ( (65.1±7.6) vs. (58.3±13.9) , t=2.732, P<0.01), the incidence of knee clunk or crepitus was lower (P=0.03) . There was no significant difference in the time of surgical tourniquet, range of motion, American knee society clinical score and incidence of deep vein thrombosis in lower extremities between the two groups.No complications such as surgical site infection, prosthesis loosening and dislocation occurred in the two groups. Conclusion: The early effect of UKA is similar to that of TKA, and it is better than TKA in the aspects of knee clunk or crepitus, forgotten joint score, blood loss, opioid dosage and postoperative hospital stay.
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Affiliation(s)
- Z Pei
- Department of Joint Surgery, Peking University People's Hospital, Beijing 100044, China (Pei Zheng is working at the Department of Orthopaedics, Peking University Shougang Hospital, Beijing 100144, China)
| | - Z T Ding
- Department of Joint Surgery, Peking University People's Hospital, Beijing 100044, China
| | - Z Li
- Department of Orthopaedics, Peking University Shougang Hospital, Beijing 100144, China
| | - Z P Guan
- Department of Joint Surgery, Peking University People's Hospital, Beijing 100044, China (Guan Zhenpeng is working at the Department of Orthopaedics, Peking University Shougang Hospital, Beijing 100144, China)
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Chen W, Xie Y, Zheng M, Lin J, Huang P, Pei Z, Yao X. Clinical and genetic features of patients with amyotrophic lateral sclerosis in southern China. Eur J Neurol 2020; 27:1017-1022. [DOI: 10.1111/ene.14213] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 03/09/2020] [Indexed: 12/11/2022]
Affiliation(s)
- W. Chen
- Department of Neurology The First Affiliated Hospital Sun Yat‐Sen University Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases National Key Clinical Department and Key Discipline of Neurology No.58 Zhongshan Road 2, Guangzhou 510080 China
| | - Y. Xie
- Department of Neurology The First Affiliated Hospital Sun Yat‐Sen University Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases National Key Clinical Department and Key Discipline of Neurology No.58 Zhongshan Road 2, Guangzhou 510080 China
| | - M. Zheng
- Department of Neurology The First Affiliated Hospital Sun Yat‐Sen University Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases National Key Clinical Department and Key Discipline of Neurology No.58 Zhongshan Road 2, Guangzhou 510080 China
| | - J. Lin
- Department of Neurology The First Affiliated Hospital Sun Yat‐Sen University Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases National Key Clinical Department and Key Discipline of Neurology No.58 Zhongshan Road 2, Guangzhou 510080 China
| | - P. Huang
- Department of Neurology The First Affiliated Hospital Sun Yat‐Sen University Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases National Key Clinical Department and Key Discipline of Neurology No.58 Zhongshan Road 2, Guangzhou 510080 China
| | - Z. Pei
- Department of Neurology The First Affiliated Hospital Sun Yat‐Sen University Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases National Key Clinical Department and Key Discipline of Neurology No.58 Zhongshan Road 2, Guangzhou 510080 China
| | - X. Yao
- Department of Neurology The First Affiliated Hospital Sun Yat‐Sen University Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases National Key Clinical Department and Key Discipline of Neurology No.58 Zhongshan Road 2, Guangzhou 510080 China
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Wang HY, Pei Z, Lee KC, Lopez-Brignoni E, Nikolov B, Crowley CA, Marsman MR, Barbier R, Friedmann N, Burns LH. PTI-125 Reduces Biomarkers of Alzheimer's Disease in Patients. J Prev Alzheimers Dis 2020; 7:256-264. [PMID: 32920628 DOI: 10.14283/jpad.2020.6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The most common dementia worldwide, Alzheimer's disease is often diagnosed via biomarkers in cerebrospinal fluid, including reduced levels of Aβ1-42, and increases in total tau and phosphorylated tau-181. Here we describe results of a Phase 2a study of a promising new drug candidate that significantly reversed all measured biomarkers of Alzheimer's disease, neurodegeneration and neuroinflammation. PTI-125 is an oral small molecule drug candidate that binds and reverses an altered conformation of the scaffolding protein filamin A found in Alzheimer's disease brain. Altered filamin A links to the α7-nicotinic acetylcholine receptor to allow Aβ42's toxic signaling through this receptor to hyperphosphorylate tau. Altered filamin A also links to toll-like receptor 4 to enable Aβ-induced persistent activation of this receptor and inflammatory cytokine release. Restoring the native shape of filamin A prevents or reverses filamin A's linkages to the α7-nicotinic acetylcholine receptor and toll-like receptor 4, thereby blocking Aβ42's activation of these receptors. The result is reduced tau hyperphosphorylation and neuroinflammation, with multiple functional improvements demonstrated in transgenic mice and postmortem Alzheimer's disease brain. OBJECTIVES Safety, pharmacokinetics, and cerebrospinal fluid and plasma biomarkers were assessed following treatment with PTI-125 for 28 days. Target engagement and mechanism of action were assessed in patient lymphocytes by measuring 1) the reversal of filamin A's altered conformation, 2) linkages of filamin A with α7-nicotinic acetylcholine receptor or toll-like receptor 4, and 3) levels of Aβ42 bound to α7-nicotinic acetylcholine receptor or CD14, the co-receptor for toll-like receptor 4. DESIGN This was a first-in-patient, open-label Phase 2a safety, pharmacokinetics and biomarker study. SETTING Five clinical trial sites in the U.S. under an Investigational New Drug application. PARTICIPANTS This study included 13 mild-to-moderate Alzheimer's disease patients, age 50-85, Mini Mental State Exam ≥16 and ≤24 with a cerebrospinal fluid total tau/Aβ42 ratio ≥0.30. INTERVENTION PTI-125 oral tablets (100 mg) were administered twice daily for 28 consecutive days. MEASUREMENTS Safety was assessed by electrocardiograms, clinical laboratory analyses and adverse event monitoring. Plasma levels of PTI-125 were measured in blood samples taken over 12 h after the first and last doses; cerebrospinal fluid levels were measured after the last dose. Commercial enzyme linked immunosorbent assays assessed levels of biomarkers of Alzheimer's disease in cerebrospinal fluid and plasma before and after treatment with PTI-125. The study measured biomarkers of pathology (pT181 tau, total tau and Aβ42), neurodegeneration (neurofilament light chain and neurogranin) and neuroinflammation (YKL-40, interleukin-6, interleukin-1β and tumor necrosis factor α). Plasma levels of phosphorylated and nitrated tau were assessed by immunoprecipitation of tau followed by immunoblotting of three different phospho-epitopes elevated in AD (pT181-tau, pS202-tau and pT231-tau) and nY29-tau. Changes in conformation of filamin A in lymphocytes were measured by isoelectric focusing point. Filamin A linkages to α7-nicotinic acetylcholine receptor and toll-like receptor 4 were assessed by immunoblot detection of α7-nicotinic acetylcholine receptor and toll-like receptor 4 in anti-filamin A immunoprecipitates from lymphocytes. Aβ42 complexed with α7-nicotinic acetylcholine receptor or CD14 in lymphocytes was also measured by co-immunoprecipitation. The trial did not measure cognition. RESULTS Consistent with the drug's mechanism of action and preclinical data, PTI-125 reduced cerebrospinal fluid biomarkers of Alzheimer's disease pathology, neurodegeneration and neuroinflammation from baseline to Day 28. All patients showed a biomarker response to PTI-125. Total tau, neurogranin, and neurofilament light chain decreased by 20%, 32% and 22%, respectively. Phospho-tau (pT181) decreased 34%, evidence that PTI-125 suppresses tau hyperphosphorylation induced by Aβ42's signaling through α7-nicotinic acetylcholine receptor. Cerebrospinal fluid biomarkers of neuroinflammation (YKL-40 and inflammatory cytokines) decreased by 5-14%. Biomarker effects were similar in plasma. Aβ42 increased slightly - a desirable result because low Aβ42 indicates Alzheimer's disease. This increase is consistent with PTI-125's 1,000-fold reduction of Aβ42's femtomolar binding affinity to α7-nicotinic acetylcholine receptor. Biomarker reductions were at least p ≤ 0.001 by paired t test. Target engagement was shown in lymphocytes by a shift in filamin A's conformation from aberrant to native: 93% was aberrant on Day 1 vs. 40% on Day 28. As a result, filamin A linkages with α7-nicotinic acetylcholine receptor and toll-like receptor 4, and Aβ42 complexes with α7-nicotinic acetylcholine receptor and CD14, were all significantly reduced by PTI-125. PTI-125 was safe and well-tolerated in all patients. Plasma half-life was 4.5 h and approximately 30% drug accumulation was observed on Day 28 vs. Day 1. CONCLUSIONS PTI-125 significantly reduced biomarkers of Alzheimer's disease pathology, neurodegeneration, and neuroinflammation in both cerebrospinal fluid and plasma. All patients responded to treatment. The magnitude and consistency of reductions in established, objective biomarkers imply that PTI-125 treatment counteracted disease processes and reduced the rate of neurodegeneration. Based on encouraging biomarker data and safety profile, approximately 60 patients with mild-to-moderate AD are currently being enrolled in a Phase 2b randomized, placebo-controlled confirmatory study to assess the safety, tolerability and efficacy of PTI-125.
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Affiliation(s)
- H-Y Wang
- Lindsay H. Burns, PhD, Cassava Sciences, Inc., 7801 N. Capital of Texas Hwy, Ste. 260, Austin, TX 78746, Phone: 512-501-2484,
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Huang J, Zeng T, Zhang X, Tian Y, Wu Y, Yu J, Pei Z, Liu Y, Hu T, Tan L. Clinical diagnostic significance of 14-3-3η protein, high-mobility group box-1, anti-cyclic citrullinated peptide antibodies, anti-mutated citrullinated vimentin antibodies and rheumatoid factor in rheumatoid arthritis. Br J Biomed Sci 2019; 77:19-23. [PMID: 31433746 DOI: 10.1080/09674845.2019.1658425] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Introduction: Circulating markers of rheumatoid arthritis (RA) include the 14-3-3η protein, high-mobility group box-1 (HMGB1), anti-cyclic citrullinated peptide (anti-CCP) antibodies, anti-mutated citrullinated vimentin (anti-MCV) antibodies and rheumatoid factor (RF). We set out to determine which two markers in combination provided best discriminatory power for this disease.Methods: We recruited 108 RA patients, 102 non-RA patients (SLE, AS, Sjogren's syndrome, MCTD) and 90 healthy controls. Sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, negative likelihood ratio and the Youden index of each analyte were calculated and binary logistic regression analysis and receiver operating characteristic (ROC) curve were performed to evaluate their diagnostic value for RA alone and in paired combination.Results: As expected, all markers were elevated in RA patients (P < 0.05). Binary logistic regression analysis showed that 14-3-3η had the highest odds ratio (95% CI) at 2.4 (1.9-2.8). Anti-CCP and anti-MCV had the highest areas under the curves [AUC (95% CI)] at 0.85 (0.78-0.90) and 0.85 (0.78-0.91) respectively (both P < 0.001). In serial detection (one marker followed by another), no combination had a Youden index >0.6. In parallel analysis (both considered together) several combinations had a Youden index >0.7, of which the highest (0.78) was anti-CCP with anti-MCV, with a sensitivity of 93.3% and specificity of 84.7%.Conclusions: Despite individual increases in serum 14-3-3η, HMGB1, anti-CCP, anti-MCV and RF, the combination of anti-CCP and anti-MCV might be of great help for diagnostic in RA, and so should be considered as routine tests for this disease.
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Affiliation(s)
- J Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - T Zeng
- The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - X Zhang
- The Third Hospital of Nanchang City Jiangxi Province, Nanchang, Jiangxi, China
| | - Y Tian
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - Y Wu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - J Yu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - Z Pei
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - Y Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - T Hu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - L Tan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
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Pei Z, Ying X, Tang Y, Liu L, Zhang H, Liu S, Zhang D, Wang K, Zhang D, Kong L, Gao Y, Ma H. Biological characteristics of a new antibacterial peptide and its antibacterial mechanisms against Gram-negative bacteria. Pol J Vet Sci 2018; 21:533-542. [PMID: 30468326 DOI: 10.24425/124287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
MDAP-2 is a new antibacterial peptide with a unique structure that was isolated from house- flies. However, its biological characteristics and antibacterial mechanisms against bacteria are still poorly understood. To study the biological characteristics, antibacterial activity, hemolytic activi- ty, cytotoxicity to mammalian cells, and the secondary structure of MDAP-2 were detected; the results showed that MDAP-2 displayed high antibacterial activity against all of the tested Gram-negative bacteria. MDAP-2 had lower hemolytic activity to rabbit red blood cells; only 3.4% hemolytic activity was observed at a concentration of 800μg/ml. MDAP-2 also had lower cytotoxicity to mammalian cells; IC50 values for HEK-293 cells, VERO cells, and IPEC-J2 cells were greater than 1000 μg/ml. The circular dichroism (CD) spectra showed that the peptide most- ly has α-helical properties and some β-fold structure in water and in membrane-like conditions. MDAP-2 is therefore a promising antibacterial agent against Gram-negative bacteria. To deter- mine the antibacterial mechanism(s) of action, fluorescent probes, flow cytometry, and transmis- sion electron microscopy (TEM) were used to study the effects of MDAP-2 on membrane perme- ability, polarization ability, and integrity of Gram-negative bacteria. The results indicated that the peptide caused membrane depolarization, increased membrane permeability, and destroyed membrane integrity. In conclusion, MDAP-2 is a broad-spectrum, lower hemolytic activity, and lower cytotoxicity antibacterial peptide, which is mainly effective on Gram-negative bacteria. It exerts its antimicrobial effects by causing bacterial cytoplasm membrane depolarization, increas- ing cell membrane permeability and disturbing the membrane integrity of Gram-negative bacte- ria. MDAP-2 may offer a new strategy to for defense against Gram-negative bacteria.
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Affiliation(s)
- Z Pei
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - X Ying
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - Y Tang
- Institute of Animal Husbandry and Veterinary Medicine, Academy of Agricultural Science of Guizhou Province, Laolipo 1, Guiyang 550005, PR China
| | - L Liu
- Jilin Medical University, Jilin Street 5, Jilin 132013, PR China
| | - H Zhang
- Animal Husbandry Bureau of Yongji County, Tianjin Street, Jilin,132100, Jilin Province, PR China
| | - S Liu
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - D Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - K Wang
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - D Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - L Kong
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - Y Gao
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
| | - H Ma
- College of Animal Science and Technology, Jilin Agricultural University, Xincheng Street 2888, Changchun 130118, PR China
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Tian Y, Zeng T, Tan L, Wu Y, Yu J, Huang J, Pei Z. BPI-ANCA in chronic obstructive pulmonary disease with pulmonary Pseudomonas aeruginosa colonisation: a novel indicator of poor prognosis. Br J Biomed Sci 2018; 75:206-208. [PMID: 30105943 DOI: 10.1080/09674845.2018.1512260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Y Tian
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - T Zeng
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - L Tan
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - Y Wu
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - J Yu
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - J Huang
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - Z Pei
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
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Sandlöbes S, Friák M, Korte-Kerzel S, Pei Z, Neugebauer J, Raabe D. A rare-earth free magnesium alloy with improved intrinsic ductility. Sci Rep 2017; 7:10458. [PMID: 28874798 PMCID: PMC5585333 DOI: 10.1038/s41598-017-10384-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 03/15/2017] [Accepted: 08/09/2017] [Indexed: 11/09/2022] Open
Abstract
Metals are the backbone of manufacturing owing to their strength and formability. Compared to polymers they have high mass density. There is, however, one exception: magnesium. It has a density of only 1.7 g/cm3, making it the lightest structural material, 4.5 times lighter than steels, 1.7 times lighter than aluminum, and even slightly lighter than carbon fibers. Yet, the widespread use of magnesium is hampered by its intrinsic brittleness. While other metallic alloys have multiple dislocation slip systems, enabling their well-known ductility, the hexagonal lattice of magnesium offers insufficient modes of deformation, rendering it intrinsically brittle. We have developed a quantum-mechanically derived treasure map which screens solid solution combinations with electronic bonding, structure and volume descriptors for similarity to the ductile magnesium-rare earth alloys. Using this insight we synthesized a surprisingly simple, compositionally lean, low-cost and industry-compatible new alloy which is over 4 times more ductile and 40% stronger than pure magnesium. The alloy contains 1 wt.% aluminum and 0.1 wt.% calcium, two inexpensive elements which are compatible with downstream recycling constraints.
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Affiliation(s)
- S Sandlöbes
- Institut für Metallkunde und Metallphysik, Kopernikusstr. 14, RWTH Aachen University, 52074, Aachen, Germany. .,Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straβe 1, 40237, Düsseldorf, Germany.
| | - M Friák
- Institute of Physics of Materials, Academy of Sciences of the Czech Republic, v.v.i., Žižkova 22, Brno, 616 62, Czech Republic.,Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straβe 1, 40237, Düsseldorf, Germany
| | - S Korte-Kerzel
- Institut für Metallkunde und Metallphysik, Kopernikusstr. 14, RWTH Aachen University, 52074, Aachen, Germany.
| | - Z Pei
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straβe 1, 40237, Düsseldorf, Germany
| | - J Neugebauer
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straβe 1, 40237, Düsseldorf, Germany
| | - D Raabe
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straβe 1, 40237, Düsseldorf, Germany.
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Luo C, Yao X, Li J, He B, Liu Q, Ren H, Liang F, Li M, Lin H, Peng J, Yuan TF, Pei Z, Su H. Paravascular pathways contribute to vasculitis and neuroinflammation after subarachnoid hemorrhage independently of glymphatic control. Cell Death Dis 2016; 7:e2160. [PMID: 27031957 PMCID: PMC4823962 DOI: 10.1038/cddis.2016.63] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [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: 11/30/2015] [Revised: 02/15/2016] [Accepted: 02/26/2016] [Indexed: 02/06/2023]
Abstract
Subarachnoid hemorrhage (SAH) is a devastating disease with high mortality. The mechanisms underlying its pathological complications have not been fully identified. Here, we investigate the potential involvement of the glymphatic system in the neuropathology of SAH. We demonstrate that blood components rapidly enter the paravascular space following SAH and penetrate into the perivascular parenchyma throughout the brain, causing disastrous events such as cerebral vasospasm, delayed cerebral ischemia, microcirculation dysfunction and widespread perivascular neuroinflammation. Clearance of the paravascular pathway with tissue-type plasminogen activator ameliorates the behavioral deficits and alleviates histological injury of SAH. Interestingly, AQP4−/− mice showed no improvements in neurological deficits and neuroinflammation at day 7 after SAH compared with WT control mice. In conclusion, our study proves that the paravascular pathway dynamically mediates the pathological complications following acute SAH independently of glymphatic control.
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Affiliation(s)
- C Luo
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - X Yao
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou, China
| | - J Li
- Department of Neurosurgery, Tangdu Hospital, Fourth Military University, Xi'an, China
| | - B He
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou, China
| | - Q Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - H Ren
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - F Liang
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou, China
| | - M Li
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou, China
| | - H Lin
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - J Peng
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - T F Yuan
- School of Psychology, Nanjing Normal University, Nanjing, China
| | - Z Pei
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou, China
| | - H Su
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
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Suzuki M, Kondo S, Pei Z, Maekawa A, Saito I, Kanegae Y. Preferable sites and orientations of transgene inserted in the adenovirus vector genome: The E3 site may be unfavorable for transgene position. Gene Ther 2015; 22:421-9. [PMID: 25588742 PMCID: PMC4424821 DOI: 10.1038/gt.2014.124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 08/15/2014] [Revised: 11/05/2014] [Accepted: 11/20/2014] [Indexed: 12/15/2022]
Abstract
The adenovirus vector (AdV) can carry two transgenes in its genome, the therapeutic gene and a reporter gene, for example. The E3 insertion site has often been used for the expression of the second transgene. A transgene can be inserted at six different sites/orientations: E1, E3 and E4 sites, and right and left orientations. However, the best combination of the insertion sites and orientations as for the titers and the expression levels has not sufficiently been studied. We attempted to construct 18 AdVs producing GFP or LacZ gene driven by the EF1α promoter and Cre gene driven by the α-fetoprotein promoter. The AdV containing GFP gene at E3 in the rightward orientation (GFP-E3R) was not available. The LacZ-E3R AdV showed 20-fold lower titer and 50-fold lower level of fiber mRNA than the control E1L AdV. Notably, we found four aberrantly spliced mRNAs in the LacZ-E3L/R AdVs, probably explaining their very low titers. Although the transgene expression levels in the E4R AdVs were about threefold lower than those in the E1L AdVs, their titers are comparable with that of E1L AdVs. We concluded that E1L and E4R sites/orientations are preferable for expressing the main target gene and a second gene, respectively.
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Affiliation(s)
- M Suzuki
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - S Kondo
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Z Pei
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - A Maekawa
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - I Saito
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Y Kanegae
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
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Pei Z, Mao Y, Wang S, Tang X. Continuous infusion of remifentanil combined with target-controlled infusion of propofol for tracheal intubation in dogs. Vet Rec 2014; 175:119. [DOI: 10.1136/vr.101995] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Z. Pei
- Department of Veterinary Medicine (Small Animal Section); College of Animal Sciences; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 PR China
| | - Y. Mao
- Department of Veterinary Medicine (Small Animal Section); Veterinary Teaching Hospital; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 PR China
| | - S. Wang
- Department of Veterinary Medicine (Small Animal Section); College of Animal Sciences; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 PR China
| | - X. Tang
- Department of Veterinary Medicine (Small Animal Section); Veterinary Teaching Hospital; Zhejiang University; 866 Yuhangtang Road Hangzhou 310058 PR China
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Lin XP, Feng L, Xie CG, Chen DB, Pei Z, Liang XL, Xie QY, Li XH, Pan SY. Valproic acid attenuates the suppression of acetyl histone H3 and CREB activity in an inducible cell model of Machado-Joseph disease. Int J Dev Neurosci 2014; 38:17-22. [PMID: 25068645 DOI: 10.1016/j.ijdevneu.2014.07.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 07/15/2014] [Accepted: 07/16/2014] [Indexed: 11/26/2022] Open
Abstract
Machado-Joseph disease (MJD) is caused by a (CAG)n trinucleotide repeat expansion that is translated into an abnormally long polyglutamine tract. This disease is considered the most common form of spinocerebellar ataxia (SCA). In the present study, we developed stable inducible cell lines (PC12Tet-On-Ataxin-3-Q28/84) expressing ataxin-3 with either normal or abnormal CAG repeats under doxycycline control. The expression of acetyl histone H3 and the induction of c-Fos in response to cAMP were strongly suppressed in cells expressing the protein with the expanded polyglutamine tract. Treatment with valproic acid, a histone deacetylase inhibitor (HDACi), attenuated mutant ataxin-3-induced cell toxicity and suppression of acetyl histone H3, phosphorylated cAMP-responsive element binding protein (p-CREB) as well as c-Fos expression. These results indicate that VPA can stimulate the up-regulation of gene transcription through hyperacetylation. Thus, VPA might have a therapeutic effect on MJD.
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Affiliation(s)
- X P Lin
- Department of Huiqiao Building, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - L Feng
- Department of Neurological Intensive Care Unit, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - C G Xie
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - D B Chen
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Z Pei
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - X L Liang
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Q Y Xie
- Department of Hyperbaric Oxygen Therapy, Guangzhou General Hospital of Guangzhou Military Area Command of Chinese PLA, Guangzhou, Guangdong Province, China
| | - X H Li
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China.
| | - S Y Pan
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
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Pei Z, Flexeder C, Fuertes E, Standl M, Berdel D, von Berg A, Koletzko S, Schaaf B, Heinrich J. Mother's body mass index and food intake in school-aged children: results of the GINIplus and the LISAplus studies. Eur J Clin Nutr 2014; 68:898-906. [PMID: 24848629 PMCID: PMC4283383 DOI: 10.1038/ejcn.2014.92] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 01/20/2014] [Revised: 03/21/2014] [Accepted: 03/27/2014] [Indexed: 12/16/2022]
Abstract
BACKGROUND/OBJECTIVES Mother's body mass index (BMI) is a strong predictor of child BMI. Whether mother's BMI correlates with child's food intake is unclear. We investigated associations between mother's BMI/overweight and child's food intake using data from two German birth cohorts. SUBJECTS/METHODS Food intakes from 3230 participants were derived from parent-completed food frequency questionnaires. Intakes of 11 food groups were categorized into three levels using group- and sex-specific tertile cutoffs. Mother's BMI and overweight were calculated on the basis of questionnaire data. Multinomial regression models assessed associations between a child's food intake and mother's BMI/overweight. Linear regression models assessed associations between a child's total energy intake and mother's BMI. Models were adjusted for study region, maternal education, child's age, sex, pubertal status and energy intake and the BMIs of the child and father. RESULTS Mothers' BMI was associated with high meat intake in children (adjusted relative risk ratio (RRR (95% confidence interval))=1.06 (1.03; 1.09)). Mothers' overweight was associated with the meat intake (medium versus low RRR=1.30 (1.07; 1.59); high versus low RRR=1.50 (1.19; 1.89)) and egg intake (medium versus low RRR=1.24 (1.02; 1.50); high versus low RRR=1.30 (1.07; 1.60)) of children. There were no consistent associations for rest of the food groups. For every one-unit increase in mothers' BMI, the total energy intake in children increased by 9.2 kcal (3.7; 14.7). However, this effect was not significant after adjusting for children's BMI. CONCLUSIONS Our results suggest that mother's BMI and mother's overweight are important correlates of a child's intake of energy, meat and eggs.
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Affiliation(s)
- Z Pei
- 1] Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany [2] Faculty of Medicine, Ludwig Maximilians University of Munich, Munich, Germany
| | - C Flexeder
- Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - E Fuertes
- 1] Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany [2] School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - M Standl
- Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - D Berdel
- Department of Pediatrics, Marien-Hospital Wesel, Wesel, Germany
| | - A von Berg
- Department of Pediatrics, Marien-Hospital Wesel, Wesel, Germany
| | - S Koletzko
- Division of Pediatric, Gastroenterology, and Hepatology, Dr von Hauner Children's Hospital, University of Munich, Munich, Germany
| | - B Schaaf
- Medical Practice for Pediatrics, Bad Honnef, Germany
| | - J Heinrich
- Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
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Pei Z, Lang B, Fragoso YD, Shearer KD, Zhao L, Mccaffery PJA, Shen S, Ding YQ, McCaig CD, Collinson JM. The expression and roles of Nde1 and Ndel1 in the adult mammalian central nervous system. Neuroscience 2014; 271:119-36. [PMID: 24785679 PMCID: PMC4048543 DOI: 10.1016/j.neuroscience.2014.04.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 01/10/2014] [Revised: 04/08/2014] [Accepted: 04/18/2014] [Indexed: 11/01/2022]
Abstract
Mental and neurological illnesses affect one in four people. While genetic linkage analyses have shown an association of nuclear distribution factor E (NDE1, or NudE) and its ohnolog NDE-like 1 (NDEL1, or Nudel) with mental disorders, the cellular mechanisms remain unclear. In the present study, we have demonstrated that Nde1 and Ndel1 are differentially localised in the subventricular zone (SVZ) of the forebrain and the subgranular zone (SGZ) of the hippocampus, two regions where neurogenesis actively occurs in the adult brain. Nde1, but not Ndel1, is localized to putative SVZ stem cells, and to actively dividing progenitors of the SGZ. The influence of these proteins on neural stem cell differentiation was investigated by overexpression in a hippocampal neural stem cell line, HCN-A94. Increasing Nde1 expression in this neural stem cell line led to increased neuronal differentiation while decreasing levels of astroglial differentiation. In primary cultured neurons and astrocytes, Nde1 and Ndel1 were found to have different but comparable subcellular localizations. In addition, we have shown for the first time that Nde1 is heterogeneously distributed in cortical astrocytes of human brains. Our data indicate that Nde1 and Ndel1 have distinct but overlapping distribution patterns in mouse brain and cultured nerve cells. They may function differently and therefore their dosage changes may contribute to some aspects of mental disorders.
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Affiliation(s)
- Z Pei
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - B Lang
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom.
| | - Y D Fragoso
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom; Department of Neurology, Medical Faculty, Universidade Metropolitana de Santos, Sao Paulo, Brazil
| | - K D Shearer
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - L Zhao
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - P J A Mccaffery
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - S Shen
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom; Regenerative Medicine Institute, School of Medicine, NUI Galway, Galway, Ireland
| | - Y Q Ding
- Tongji University School of Medicine, 1239 Siping Road, Shanghai 200092, China
| | - C D McCaig
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - J M Collinson
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom.
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Pei Z, Chen X, Sun C, Du H, Wei H, Song W, Yang Y, Zhang M, Lu W, Cheng R, Luo F. A novel single nucleotide polymorphism in the protein tyrosine phosphatase N22 gene (PTPN22) is associated with Type 1 diabetes in a Chinese population. Diabet Med 2014; 31:219-26. [PMID: 24117662 DOI: 10.1111/dme.12331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 08/09/2013] [Accepted: 09/19/2013] [Indexed: 11/29/2022]
Abstract
AIMS To examine single nucleotide polymorphisms in the protein tyrosine phosphatase N22 gene (PTPN22) and to study their association with Type 1 diabetes in a Chinese cohort. METHODS Three hundred and sixty-four young patients with Type 1 diabetes and 719 healthy children were included in this case-controlled study. The genotypes of rs1217385, rs2488457 (-1123C>G), rs1217414, rs1217419, rs3765598 and rs2476601 (1858C>T) in the PTPN22 gene were determined using the SNaPshot method. Alleles, genotypes and haplotype frequencies were compared between patients with Type 1 diabetes and healthy control subjects. The association between single nucleotide polymorphisms and clinical traits/autoantibody status was also analysed. RESULTS The single nucleotide polymorphism, rs1217419, located in the second intron of the PTPN22 gene was associated with Type 1 diabetes (odds ratio 1.5, 95% CI 1.14-1.97, P = 0.003). An additional single nucleotide polymorphism, rs1217385, was also associated with Type 1 diabetes; however, the association was secondary to that of rs1217419. The previously reported single nucleotide polymorphism that is associated with Type 1 diabetes (-1123G>C) had only marginal association with Type 1 diabetes in our study. A marginal association was also identified between -1123G>C and glutamic acid decarboxylase autoantibody positivity in patients with Type 1 diabetes. There was no association between the single nucleotide polymorphism 1858C>T and Type 1 diabetes in our studied cohort. CONCLUSIONS Our study confirmed that PTPN22 is a gene that contributes to Type 1 diabetes susceptibility. The primary association occurs with single nucleotide polymorphism rs1217419 and there is clear heterogeneity of the association between PTPTN22 polymorphisms and Type 1 diabetes in a Chinese population compared with other populations.
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Affiliation(s)
- Z Pei
- Department of Pediatric Endocrinology and Inborn Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
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Jiang H, Sun YM, Hao Y, Yan YP, Chen K, Xin SH, Tang YP, Li XH, Jun T, Chen YY, Liu ZJ, Wang CR, Li H, Pei Z, Shang HF, Zhang BR, Gu WH, Wu ZY, Tang BS, Burgunder JM. Huntingtin gene CAG repeat numbers in Chinese patients with Huntington's disease and controls. Eur J Neurol 2014; 21:637-42. [PMID: 24471773 DOI: 10.1111/ene.12366] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Accepted: 12/17/2013] [Indexed: 02/05/2023]
Affiliation(s)
- H. Jiang
- Department of Neurology; Xiangya Hospital; Central South University; Changsha China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders; State Key Laboratory of Medical Genetics of China; Central South University; Changsha China
| | - Y. M. Sun
- Department of Neurology; Institute of Neurology; Huashan Hospital; Shanghai Medical College; Fudan University; Shanghai China
| | - Y. Hao
- Department of Neurology; China−Japan Friendship Hospital; Beijing China
| | - Y. P. Yan
- Department of Neurology; Second Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou China
| | - K. Chen
- Department of Neurology; West China Hospital; Sichuan University; Chengdu China
| | - S. H. Xin
- First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Y. P. Tang
- Department of Medical Genetics; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - X. H. Li
- First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - T. Jun
- Department of Neurology; Second Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou China
| | - Y. Y. Chen
- Department of Neurology; China−Japan Friendship Hospital; Beijing China
| | - Z. J. Liu
- Department of Neurology; Institute of Neurology; Huashan Hospital; Shanghai Medical College; Fudan University; Shanghai China
| | - C. R. Wang
- Department of Neurology; Xiangya Hospital; Central South University; Changsha China
| | - H. Li
- Department of Medical Genetics; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Z. Pei
- First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - H. F. Shang
- Department of Neurology; West China Hospital; Sichuan University; Chengdu China
| | - B. R. Zhang
- Department of Neurology; Second Affiliated Hospital; College of Medicine; Zhejiang University; Hangzhou China
| | - W. H. Gu
- Department of Neurology; China−Japan Friendship Hospital; Beijing China
| | - Z. Y. Wu
- Department of Neurology; Institute of Neurology; Huashan Hospital; Shanghai Medical College; Fudan University; Shanghai China
| | - B. S. Tang
- Department of Neurology; Xiangya Hospital; Central South University; Changsha China
| | - J.-M. Burgunder
- Department of Neurology; Xiangya Hospital; Central South University; Changsha China
- Department of Neurology; West China Hospital; Sichuan University; Chengdu China
- First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
- Swiss Huntington's Disease Centre; Department of Neurology; University of Bern; NeuroBu Clinics; Bern Switzerland
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Li J, Lu X, Wu Q, Yu G, Xu Z, Qiu L, Pei Z, Lin Y, Pang J. Design, SAR, Angiogenic Activities Evaluation and Pro-Angiogenic Mechanism of New Marine Cyclopeptide Analogs. Curr Med Chem 2013; 20:1183-94. [DOI: 10.2174/0929867311320090007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 11/30/2012] [Accepted: 12/20/2012] [Indexed: 11/22/2022]
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Zheng Y, Wu Q, Fang Y, He Y, Zhou H, Liu Y, Chen J, Xian W, Fu X, Shen C, Guo C, Chen L, Pei Z. 3.050 THE ASSOCIATION BETWEEN LRRK2 S1647T POLYMORPHISM AND COGNITIVE FUNCTION IN PARKINSON'S DISEASE. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70786-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Xian W, Fu X, Chen J, Liu Y, Zheng Y, Liu J, Zhou X, Li J, Liu Z, Pei Z, Chen L. 2.309 BILATERAL SUBTHALAMIC NUCLEUS STIMULATION VERSUS PREOPERATIVE MEDICAL THERAPY IN PARKINSON'S DISEASE: A SYSTEMATIC REVIEW OF STUDIES WITH ONE YEAR FOLLOW-UP. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70632-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Fu X, Liu J, Liu Y, Xian W, Chen J, Zheng Y, Zhou H, He Y, Li J, Liu Z, Pei Z, Chen L. 2.324 THE BILATERAL STN-DBS CAN IMPROVE MOTOR AND NON-MOTOR SYMPTOMS IN MODERATE AND ADVANCED PD PATIENTS: A TWO-YEAR FOLLOW-UP STUDY. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70647-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu Y, Fu X, Xian W, Zheng Y, Chen J, Zhou H, Pei Z, Chen L. 2.325 THE BILATERAL STN-DBS CAN IMPROVE MOTOR AND NONMOTOR SYMPTOMS IN PATIENTS OF PARKINSON'S DISEASE: A ONE-YEAR FOLLOW-UP STUDY. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70648-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zheng Y, Liu Y, Wu Q, Hong H, Zhou H, Chen J, Wang H, Xian W, Li J, Liu Z, Pei Z, Chen L. Confirmation of LRRK2 S1647T variant as a risk factor for Parkinson's disease in southern China. Eur J Neurol 2011; 18:538-40. [PMID: 20629711 DOI: 10.1111/j.1468-1331.2010.03164.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Leucine-rich repeat kinase 2 (LRRK2) S1647T has been identified as a risk variant for Parkinson's disease (PD) in Han Chinese. METHODS To replicate the association of LRRK2 S1647T with risk of PD, we conducted a case-control study of this variant involving 406 PD subjects and 412 controls from southern mainland China. RESULTS The results showed that the frequency of A allele was higher in patients with PD (OR=1.238, 95% CI: 1.015-1.510, P=0.035) compared to controls. In a multivariate logistic regression analysis with the disease group (patients with PD vs. controls) as the dependent variable and genotype as an independent factor adjusting for the effect of age and gender, the homozygous S1647T genotype (AA) was associated with an increased risk of PD (OR=1.815, 95% CI:1.270-2.594, P=0.001). The pooled analysis of present data and the data from the previous work demonstrated that the frequency of A allele was higher in patients with PD (OR=1.2, 95% CI: 1.09-1.32, P<0.0001). CONCLUSIONS LRRK2 S1647T increases the risk of Parkinson's disease in southern China.
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Affiliation(s)
- Y Zheng
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Yang Q, Qu L, Tian H, Hu Y, Peng J, Yu X, Yu C, Pei Z, Wang G, Shi B, Zhang F, Zhang Y, Zhang F. Prevalence and characteristics of psoriatic arthritis in Chinese patients with psoriasis. J Eur Acad Dermatol Venereol 2011; 25:1409-14. [PMID: 21349114 DOI: 10.1111/j.1468-3083.2011.03985.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND The prevalence and clinical characteristics of psoriatic arthritis (PsA) in patients with psoriasis vary widely in different countries and studies on Chinese population are rarely reported. OBJECTIVE The aim of this study was to evaluate the prevalence and clinical characteristics of PsA in a Chinese population of patients with psoriasis. METHODS A large cross-sectional observational study was conducted in our outpatient dermatology department and consecutive psoriatic patients were evaluated for PsA according to Classification of Psoriatic arthritis (CASPAR) criteria. Demographic and medical parameters were recorded. RESULTS Among 1928 patients with psoriasis, 112 patients (5.8%) had PsA, of which 92% was newly diagnosed. Oligoarthritis (48.2%) was the most common manifestation pattern, followed by spondylitis (26.8%), polyarthritis (19.6%) and classic distal interphalangeal (DIP) arthritis (5.4%). Enthesitis was present in 26.8% and dactylitis in 13.4% of the patients. Compared with patients without PsA, patients with PsA had more severe skin disease (mean PASI 9.7 vs. 6.0), higher frequency of nail changes (46.4% vs. 21.0%) and scalp involvement (90.2% vs. 76.4%). CONCLUSION The findings are consistent with a low prevalence of PsA among patients with psoriasis in Asia and confirm a high percentage of undiagnosed cases with active arthritis among PsA patients in dermatologist's office. Dermatologists should screen for PsA in their patients, especially those with risk characteristics and early signs.
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Affiliation(s)
- Q Yang
- Shandong Clinical College of Skin Diseases, Anhui Medical University, Jinan, Shandong, China
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Long PM, Wesley UV, Jaworski DM, Rana M, Kiehl TR, So K, Gould P, Ajewung N, Kamnasaran D, Emmett MR, Wang X, Marshall AG, Ji Y, Fokt I, Skora S, Conrad CA, Priebe W, Zhu H, Cao X, Keir S, Ali-Osman F, Lo HW, Da Fonseca CO, Arun V, Wiley JC, Kaur H, Guha A, Fenton K, Abdelwahab MG, Stafford P, Rho JM, Preul MC, Scheck AC, Brossier NM, Carroll SL, Gajadhar A, Guha A, Mukherjee J, Wolf A, Hawkins C, Guha A, Costa P, Cardoso ALC, de Almeida LP, de Lima MCP, Canoll P, Bruce J, Lavon I, Granit A, Einstein O, Ben-Hur T, Siegal T, Pang JC, Poon WS, Zhou L, Ng HK, Rovin RA, Lawrence JE, Segula JJ, Winn RJ, Patil S, Burzynski SR, Mrowczynski E, Grela K, Cheng S, Liu K, Feng H, Bacho R, Kazlauskas A, Smith EM, Symes K, Hu B, Lee CY, Fotovati A, Dunn SE, Proescholdt MA, Storr EM, Lohmeier A, Brawanski A, Hu B, Feng H, Jarzynka MJ, Liu K, Ravichandran KS, Vuori K, Tang C, Nshikawa R, Johns TG, Furnari FB, Cavenee WK, Cheng S, Zhong J, O'Neill GM, Deleyrolle LP, Rahman M, Dunbar EM, Caldeira MA, Reynolds BA, Liu X, Yacyshyn S, Dasgupta B, Han X, Yang X, Wheeler CG, Filippova N, Langford CP, Ding Q, Fathallah HM, Gillespie GY, Nabors LB, Davidson TB, Gortalum F, Ji L, Engell K, Sposto R, Asgharzadeh S, Erdreich-Epstein A, Lawn SO, Weiss S, Senger D, Forsyth P, Latha K, Chumbalkar V, Li M, Gururaj A, Hwang Y, Maywald R, Dakeng S, Dao L, Baggerly K, Sawaya R, Aldape K, Cavenee W, Furnari F, Bogler O, Hwang Y, Chumbalkar V, Latha K, Bogler O, Gururaj A, Bogler O, Chumbalkar V, Arumugam J, Dao L, Baggerly K, Priebe W, Bogler O, Sim H, Pineda CA, Pan Y, Hu B, Viapiano MS, Van Schaick JA, Akagi K, Burkett S, DiFabio C, Tuskan R, Walrath J, Reilly K, Dai B, Jing Z, Kang SH, Li D, Xie K, Huang S, Gong X, Vuong Y, Bota DA, Stegh AH, Furnari F, Inda MDM, Bonavia R, Mukasa A, Narita Y, Sah D, Vandenberg S, Brennan C, Johns T, Bachoo R, Hadwiger P, Tan P, Tan P, DePinho R, Cavenee W, Kusne Y, Meerson A, Rushing EJ, Yang W, Aldape K, McDonough W, Kislin K, Loftus JC, Berens M, Lu Z, Ghosh S, Verma A, Zhou H, Chin S, Bruggers C, Kestle J, Khatua S, Broekman ML, Maas NS, Skog J, Breakefield XO, Sena-Esteves M, de Vrij J, Lamfers M, Maas N, Dirven C, Esteves M, Broekman M, Chidambaram A, Dumur CI, Graf M, Vanmeter TE, Fillmore HL, Broaddus WC, Silber J, Ozawa T, Kastenhuber E, Djaballah H, Holland EC, Huse JT, Wolf A, Agnihotri S, Munoz D, Hawkins C, Guha A, Han JE, Albesiano E, Pradilla G, Lim M, Alshami J, Sabau C, Seyed Sadr M, Anan M, Seyed Sadr E, Siu V, Del Maestro R, Trinh G, Le P, Petrecca K, Sonabend AM, Soderquist C, Lei L, Guarnieri P, Leung R, Yun J, Sisti J, Castelli M, Bruce S, Bruce R, Ludwig T, Rosenfeld S, Bruce JN, Canoll P, Phillips JJ, Huillard E, Polley MY, Rosen SD, Rowitch DH, Werb Z, Sarkar C, Jha P, Pathak P, Suri V, Sharma MC, Chattopadhyay P, Chosdol K, Suri A, Gupta D, Mahapatra AK, Kapoor GS, Zhan Y, Boockvar JA, O'Rourke DM, Kwatra MM, Kim JW, Park CK, Han JH, Park SH, Kim SK, Jung HW, Narayanan R, Levin BS, Maeder ML, Joung JK, Nutt CL, Louis DN, Dudley A, Jayaram P, Pei Z, Shi X, Laterra J, Watkins PA, Mawrin C, Rempel SA, McClung HM, McFarland BC, Nozell SE, Huszar D, Benveniste EN, Burton T, Eisenstat DD, Gibson SB, Lukiw WJ, Cui JG, Li YY, Zhao Y, Culicchia F, See W, Pieper R, Luchman A, Stechishin O, Nguyen S, Kelly J, Blough M, Cairncross G, Weiss S, Shah SR, Mohyeldin A, Adams H, Garzon-Muvdi T, Aprhys C, Quinones-Hinojosa A, Weeks AC, Restrepo A, Arun V, Ivanchuk S, Smith C, Rutka JT, Sengupta R, Yang L, Burbassi S, Zhang B, Markant SL, Yang ZJ, Meucci O, Wechsler-Reya RJ, Rubin JB, Wykosky J, Mukasa A, Chin L, Cavenee W, Furnari F, Auvergne RM, Sim FJ, Wang S, Chandler-Militello D, Burch J, Li X, Bennet A, Mohile N, Pilcher W, Walter K, Johnson M, Achanta P, Quinones-Hinojosa A, Natesan S, Goldman SA, Beauchamp AS, Gibo DM, Wykosky J, Debinski W, Jiang H, Martin V, Gomez-Manzano C, Johnson DG, Alonso M, White EJ, Xu J, McDonnell T, Shinojima N, Fueyo J, Sandhya Rani MR, Huang P, Prayson R, Hedayat H, Sloan AE, Novacki A, Ahluwalia MS, Tipps R, Gladson CL, Liu JL, Mao Z, Xu J, Fueyo J, Yung WKA, Bhat K, Salazar K, Balasubramaniyan V, Vaillant B, Hollingsworth F, Gumin J, Diefes K, Patel D, Lang F, Colman H, Aldape K, Parsyan A, Shahbazian D, Alain T, Martineau Y, Petroulakis E, Larsson O, Gkogkas C, Topisirovic I, Mathonnet G, Tettweiler G, Hellen C, Pestova T, Svitkin Y, Sonenberg N, Zerrouqi A, Pyrzynska B, Van Meir E, Twitty GB, Nozell SE, Hong SW, Benveniste EN, Lee HK, Finniss S, Xiang C, Cazacu S, Brodie C, Ginn KF, Wise A, Farassati F, Nozell SE, Hong SW, Twitty GB, McFarland BC, Benveniste EN, Brown C, Barish M, deCarvalho AC, Hasselbach L, Nelson K, Lemke N, Schultz L, Mikkelsen T, Onvani S, Kongkham P, Smith CA, Rutka JT, Bier A, Finniss S, Hershkovitz H, Kahana S, Xiang C, Cazacu S, Decarvalho A, Brodie C, Massey SC, Swanson KR, Canoll P. Cell Biology and Signaling. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s2] [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: 11/14/2022] Open
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Huifang S, Pei Z, Burgunder JM. E01 Huntington's disease in China. J Neurol Neurosurg Psychiatry 2010. [DOI: 10.1136/jnnp.2010.22638.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yao H, Pan J, Qian Y, Pei Z, Bader A, Brockmeyer NH, Altmeyer P, Zhang L. Enhanced effect of soluble transforming growth factor-beta receptor II and IFN-gamma fusion protein in reversing hepatic fibrosis. Eur J Med Res 2010; 15:152-61. [PMID: 20554496 PMCID: PMC3474166 DOI: 10.1186/2047-783x-15-4-152] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [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] [Indexed: 01/18/2023] Open
Abstract
Objective To examine the in vivo anti-fibrotic effect of rat soluble transforming growth factor β receptor II (RsTβRII) and IFN-γ fusion protein (RsTβRII-IFN-γ) in rat hepatic fibrosis model. Methods Model rats were divided into five groups and treated i.m. for 8 weeks: 1) fibrotic model group (each rat, 100 μl of 0.9% NaCl day-1); 2) RsTβRII-IFN-γ treatment group (each rat, 0.136 mg· day-1); 3) IFN-γ treatment group (each rat, 7.5 MU· day-1); 4) RsTβRII treatment group (each rat, 0.048 mg· day-1); and 5) mixture of IFN-γ and RsTβRII treatment group (each rat, IFN-γ 7.5 MU· day-1+ RsTβRII 0.048 mg· day-1). After treatment, hepatic fibrogenesis was evaluated by histopathological analysis and measurement of collagen III, α-smooth muscle actin (α-SMA), TGF-β1, TGF-βRII and their mRNA. Results Immunohistochemistry, Western blot and real-time RT-PCR showed that RsTβRII-IFN-γ treatment significantly inhibited liver expression of collagen III, α-SMA, TGF-β1 and TGF-βRII at both protein and mRNA levels. Histopathological analysis also showed that the enhanced anti-fibrotic effects were achieved in model rats treated with RsTβRII-IFN-γ. Conclusion Our results confirmed that RsTβRII-IFN-γ has the enhanced effects in reversing hepatic fibrosis.
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Affiliation(s)
- H Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, China
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Zhang ZW, Song LJ, Meng QF, Li ZP, Luo BN, Yang YH, Pei Z. High-resolution diffusion-weighted MR imaging of the human lumbosacral plexus and its branches based on a steady-state free precession imaging technique at 3T. AJNR Am J Neuroradiol 2008; 29:1092-4. [PMID: 18339722 DOI: 10.3174/ajnr.a0994] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [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
3D diffusion-weighted steady-state free precession imaging (3D DW-SSFP) with isotropic resolution was performed to delineate structures of the human lumbosacral plexus (LSP). 3D DW-SSFP clearly revealed detailed anatomy of the LSP and its branches. Our data suggest that the sequence based on 3D DW-SSFP can be used for high-resolution MR imaging of the peripheral nervous system.
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Affiliation(s)
- Z W Zhang
- Department of Radiology, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, PR China
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Francois F, Roper J, Goodman AJ, Pei Z, Ghumman M, Mourad M, de Perez AZO, Perez-Perez GI, Tseng CH, Blaser MJ. The association of gastric leptin with oesophageal inflammation and metaplasia. Gut 2008; 57:16-24. [PMID: 17761783 DOI: 10.1136/gut.2007.131672] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Gastro-oesophageal reflux disease complications may reflect imbalances between protective and injurious factors. Through its effects on cell growth, leptin may influence oesophageal mucosal homeostasis. AIMS To determine whether leptin receptors are present in the oesophagus, and whether serum or gastric leptin levels are associated with oesophageal inflammation and metaplasia. METHODS From patients referred for upper endoscopy, biopsies were obtained from the stomach and distal oesophagus, and serum samples were collected. Patients were classified as having normal, inflamed or Barrett's oesophagus. Quantitative immunohistochemistry was performed on representative sections, and leptin levels in plasma and gastric biopsy samples were determined by specific immunoassay. RESULTS Of 269 individuals enrolled, 105 were Helicobacter pylori-negative. Of the 88 patients with complete oesophageal biopsies, 44 were normal, 24 were inflamed and 20 were Barrett's oesophagus. Receptors for leptin were highly expressed on oesophageal epithelial cells, with similar density and staining pattern in all three conditions, and plasma and antral leptin levels did not differ significantly. Patients with Barrett's had significantly (p = 0.01) higher fundic leptin levels (median 202 (interquartile range 123-333) pg/mg) compared with normal (126 (78-221) pg/mg) or inflamed (114 (76-195) pg/mg) oesophagus. In multivariate analysis, for every twofold increase in fundic leptin, the odds of having Barrett's was 3.4 times (95% CI 1.5 to 7.6) higher compared with having a normal oesophagus. CONCLUSIONS Leptin receptor expression on oesophageal epithelial cells provides a pathway for leptin-mediated signal transduction. Variation in gastric leptin production could contribute to differential oesophageal healing and metaplasia progression.
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Affiliation(s)
- F Francois
- New York University School of Medicine, New York, NY, USA.
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