1
|
Huang Y, Li X, Niu L, Zhang H, Zhang C, Feng Y, Wang Z, Zhang F, Luo X. CT venography combined with ultrasound-guided minimally invasive treatment for recurrent varicose veins: a pilot paired-design clinical trial. Clin Radiol 2024; 79:363-370. [PMID: 38290939 DOI: 10.1016/j.crad.2023.12.023] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 09/26/2023] [Accepted: 12/24/2023] [Indexed: 02/01/2024]
Abstract
AIM To compare 1-year outcomes of computed tomography venography (CTV) combined with ultrasound-guided minimally invasive treatment with ascending phlebography and ultrasound-guided treatment for recurrent varicose veins. MATERIALS AND METHODS Consecutive patients with unilateral recurrent varicose veins were matched by gender, age, C classification, and degree of obesity, and randomised in a 1:1 ratio to receive either CTV (CTV group) or ascending phlebography (control group) combined with ultrasound-guided minimally invasive treatment. Patients were followed up by clinical and ultrasound examination. Follow-up was scheduled at 1 week, and 3, 6, and 12 months. The primary outcome measure was the Venous Clinical Severity Score (VCSS) at 12 months. Measures of secondary outcome included Chronic Insufficiency Venous International Questionnaire-20 (CIVIQ-20) score, recurrence of varicose vein or ulcer during 12 months, ulcer healing time, detection and location of treated veins. RESULTS Eighty patients were enrolled. Median VCSS in the CTV group was lower than it in the control group (p=0.04) and the CIVIQ-20 score was higher than the control group (p=0.02). By 12 months, no symptomatically recurrent varicose veins or ulcers had occurred. The ulcer healing time in CTV group was shorter (p<0.01). A greater number of patients had treated veins detected using CTV than by ascending venography (p=0.01), especially among patients with recurrence reflux veins in the groin, perineum, and vulva (p<0.01). CONCLUSION CTV combined with ultrasound may be more helpful than ascending phlebography combined with ultrasound to improve treatment efficacy for recurrent varices. These results should be verified by an future study with more patients and long-term follow-up.
Collapse
Affiliation(s)
- Y Huang
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - X Li
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - L Niu
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - H Zhang
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - C Zhang
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Y Feng
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Z Wang
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - F Zhang
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - X Luo
- Department of Vascular Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
| |
Collapse
|
2
|
Jia P, Tang Y, Niu L, Qiu L. Clinical and radiographic outcomes of a combined surgery approach to treat peri-implantitis. Int J Oral Maxillofac Surg 2024; 53:333-342. [PMID: 38154998 DOI: 10.1016/j.ijom.2023.11.013] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/30/2023]
Abstract
Peri-implant infra-bony defects are difficult to treat, and data on the management of peri-implantitis are lacking. The aim of this study was to evaluate the effect of a combined surgical approach to manage peri-implantitis: implantoplasty with xenogeneic bone grafting and a concentrated growth factor membrane. Two independent examiners analysed the medical records and radiographs taken before surgery and at the last follow-up. Data were analysed at the implant level; some patient-level data (age, sex, smoking habit) were also considered. Linear regression analysis with generalized estimating equations (GEE) was used to explore the effect of variables of interest (including marginal bone level (MBL)) on implantitis treatment success and resolution rates. The effect of the prosthesis type on postoperative clinical and radiographic parameters was also explored by GEE, with adjustment for age, sex, tooth site, location, follow-up duration, and implant length (model IV including all). Thirty patients with 72 implants were investigated. The implant survival rate was 100% over a mean observation period of 3.3 years (range 2-11 years). The treatment success rate (bone loss <0.5 mm, no bleeding on probing (BOP), no suppuration, probing depth (PD) < 5 mm) was higher in females than males (50% vs 19.0%; P = 0.008). At the last postoperative follow-up, the MBL (1.51 ± 1.07 vs 4.01 ± 1.13 mm), PD (3.61 ± 0.84 vs 6.54 ± 1.01 mm), and BOP (23.38 ± 23.18% vs 79.17 ± 15.51%) were significantly reduced when compared to pre-surgery values (all P < 0.001). Furthermore, a significantly higher PD reduction (β = -1.10 mm, 95% confidence interval -1.97 to -0.23 mm, P = 0.014) was observed for implants with a single crown than a full-arch prosthesis (GEE model IV). Preliminary clinical and radiographic data indicate that implantoplasty in combination with surgery could be an effective treatment option for peri-implantitis.
Collapse
Affiliation(s)
- P Jia
- Fourth Division, Peking University School and Hospital of Stomatology, China; National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, China; Research Center of Engineering and Technology for Digital Dentistry of the Ministry of Health, China; Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Y Tang
- Fourth Division, Peking University School and Hospital of Stomatology, China; National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, China; Research Center of Engineering and Technology for Digital Dentistry of the Ministry of Health, China; Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - L Niu
- Fourth Division, Peking University School and Hospital of Stomatology, China; National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, China; Research Center of Engineering and Technology for Digital Dentistry of the Ministry of Health, China; Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - L Qiu
- Fourth Division, Peking University School and Hospital of Stomatology, China; National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, China; Research Center of Engineering and Technology for Digital Dentistry of the Ministry of Health, China; Beijing Key Laboratory of Digital Stomatology, Beijing, China.
| |
Collapse
|
3
|
Wang YS, Niu L, Shi WX, Li XY, Shen L. Naples prognostic score as a predictor of outcomes in lung cancer: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2023; 27:8144-8153. [PMID: 37750642 DOI: 10.26355/eurrev_202309_33574] [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: 09/27/2023]
Abstract
OBJECTIVE The Naples prognostic score (NPS) is a newly developed indicator of inflammation and nutritional status. However, its role in predicting the prognosis of lung cancer is unclear. We hereby reviewed the association between NPS and outcomes of lung cancer. MATERIALS AND METHODS PubMed, Web of Science, Embase, and Google Scholar were searched up to 15th April 2023 for studies assessing the predictive role of NPS for overall survival (OS) and disease-free survival (DFS) in lung cancer. RESULTS Seven studies were included. All were from China. One study was on small cell lung cancer, while the rest were on non-small cell lung cancer. Meta-analysis demonstrated that a high NPS score was a significant predictor of OS (HR: 3.21 95% CI: 2.27, 4.54 I2=62%) and disease-free survival (DFS) (HR: 3.81 95% CI: 2.57, 5.64 I2=65%) in lung cancer patients. Subgroup analysis based on different NPS reference values also showed similar results. The results remained significant on sensitivity analysis. CONCLUSIONS The NPS is a strong and independent prognostic indicator of lung cancer patients. Higher NPS scores are associated with worse OS and DFS. Further studies from non-Chinese populations are needed to supplement the results.
Collapse
Affiliation(s)
- Y-S Wang
- Department of Oncology, Changxing County Hospital of Traditional Chinese Medicine, Changxing Country, Zhejiang Province, China.
| | | | | | | | | |
Collapse
|
4
|
Liang M, Zhao SJ, Zhou LN, Xu XJ, Wang YW, Niu L, Wang HH, Tang W, Wu N. [The performance of digital chest radiographs in the detection and diagnosis of pulmonary nodules and the consistency among readers]. Zhonghua Zhong Liu Za Zhi 2023; 45:265-272. [PMID: 36944548 DOI: 10.3760/cma.j.cn112152-20220304-00150] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To investigate the detection and diagnostic efficacy of chest radiographs for ≤30 mm pulmonary nodules and the factors affecting them, and to compare the level of consistency among readers. Methods: A total of 43 patients with asymptomatic pulmonary nodules who consulted in Cancer Hospital, Chinese Academy of Medical Sciences from 2012 to 2014 and had chest CT and X-ray chest radiographs during the same period were retrospectively selected, and one nodule ≤30 mm was visible on chest CT images in the whole group (total 43 nodules in the whole group). One senior radiologist with more than 20 years of experience in imaging diagnosis reviewed CT images and recording the size, morphology, location, and density of nodules was selected retrospectively. Six radiologists with different levels of experience (2 residents, 2 attending physicians and 2 associate chief physicians independently reviewed the chest images and recorded the time of review, nodule detection, and diagnostic opinion. The CT imaging characteristics of detected and undetected nodules on X images were compared, and the factors affecting the detection of nodules on X-ray images were analyzed. Detection sensitivity and diagnosis accuracy rate of 6 radiologists were calculated, and the level of consistency among them was compared to analyze the influence of radiologists' seniority and reading time on the diagnosis results. Results: The number of nodules detected by all 6 radiologists was 17, with a sensitivity of detection of 39.5%(17/43). The number of nodules detected by ≥5, ≥4, ≥3, ≥2, and ≥1 physicians was 20, 21, 23, 25, and 28 nodules, respectively, with detection sensitivities of 46.5%, 48.8%, 53.5%, 58.1%, and 65.1%, respectively. Reasons for false-negative result of detection on X-ray images included the size, location, density, and morphology of the nodule. The sensitivity of detecting ≤30 mm, ≤20 mm, ≤15 mm, and ≤10 mm nodules was 46.5%-58.1%, 45.9%-54.1%, 36.0%-44.0%, and 36.4% for the 6 radiologists, respectively; the diagnosis accuracy rate was 19.0%-85.0%, 16.7%-6.5%, 18.2%-80.0%, and 0%-75.0%, respectively. The consistency of nodule detection among 6 doctors was good (Kappa value: 0.629-0.907) and the consistency of diagnostic results among them was moderate or poor (Kappa value: 0.350-0.653). The higher the radiologist's seniority, the shorter the time required to read the images. The reading time and the seniority of the radiologists had no significant influence on the detection and diagnosis results (P>0.05). Conclusions: The ability of radiographs to detect lung nodules ≤30 mm is limited, and the ability to determine the nature of the nodules is not sufficient, and the increase in reading time and seniority of the radiologists will not improve the diagnostic accuracy. X-ray film exam alone is not suitable for lung cancer diagnosis.
Collapse
Affiliation(s)
- M Liang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S J Zhao
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L N Zhou
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X J Xu
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y W Wang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Niu
- Radiology Department, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - H H Wang
- Radiology Department, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - W Tang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N Wu
- Department of Nuclear Medicine (PET-CT Center), National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital, Chinese Academy of Medical Sciences, Langfang 065001, China
| |
Collapse
|
5
|
Zhang W, Huang JF, Zhang BH, Liu G, Li FC, Shi XH, Niu L, Yang L. [Prevalence and risk factors of deep venous thrombosis of lower extremity in patients with stage Ⅲ and Ⅳ pressure ulcers on admission]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:549-554. [PMID: 35764580 DOI: 10.3760/cma.j.cn501120-20210419-00134] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the incidence and risk factors of deep venous thrombosis (DVT) of lower extremity in patients with stage Ⅲ and Ⅳ pressure ulcer on admission. Methods: A retrospective case series study was conducted. A total of 241 patients with stage Ⅲ and Ⅳ pressure ulcers who met the inclusion criteria and were discharged from the Department of Wound Repair of the First People's Hospital of Zhengzhou from January 1, 2015 to December 31, 2019 were enrolled in this study, including 134 males and 107 females, aged 22 to 93 years, with a median age of 68 years; 37 patients were with stage Ⅲ pressure ulcers and 204 patients were with stage Ⅳ pressure ulcers. The DVT occurrence of patients was recorded. According to whether DVT of lower extremity veins was diagnosed by color Doppler ultrasound within 48 h after admission or not, the patients were divided into DVT group (n=37) and non-DVT group (n=204). Data of patients in the two groups were collected and compared, including gender, age, duration of pressure ulcer, time in bed, and combination with diabetes, hypertension, coronary heart disease, cerebral infarction, pneumonia, sepsis/septic shock, and paraplegia, and the plasma D-dimer level and Caprini score within 24 h after admission. Data were statistically analyzed with independent sample t test, Mann-Whitney U test, chi-square test, and Fisher's exact probability test. The indicators with statistically significant differences between the two groups were analyzed with multivariate logistic regression analysis to screen the independent risk factors influencing the DVT of lower extremity in 241 patients with stage Ⅲ and Ⅳ pressure ulcers on admission. Results: The incidence of DVT of lower extremity was 15.4% (37/241), of which 86.5% (32/37) were asymptomatic DVT. Among the DVT of 46 lower limbs, only 29 involved the inferior genicular veins, accounting for 63.0%. There were no statistically significant differences in gender, duration of pressure ulcer, combination with diabetes, hypertension, coronary heart disease, cerebral infarction, pneumonia, and sepsis/septic shock of patients between the two groups (P>0.05), while there were statistically significant differences in age, time in bed, combination with paraplegia, the plasma D-dimer level and Caprini score of patients between the two groups(t=-3.19, Z=-2.04, χ2=4.44, Z=-3.89, t=-2.14, respectively, P<0.05 or P<0.01). Multivariate logistic regression analysis showed that age and plasma D-dimer level were independent risk factors influencing the DVT of lower extremity in 241 patients with stage Ⅲ and Ⅳ pressure ulcers on admission (with odds ratios of 1.03 and 1.18, respectively, with 95% confidence intervals of 1.00-1.06 and 1.05-1.33, respectively, P<0.05 or P<0.01). Conclusions: The patients with stage Ⅲ and Ⅳ pressure ulcers have a higher incidence of DVT on admission, with age and plasma D-dimer level being the independent risk factors for DVT of lower extremity. It is necessary to pay attention to the targeted screening of DVT and education of its prevention.
Collapse
Affiliation(s)
- W Zhang
- Department of Interventional Radiology, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - J F Huang
- Department of Wound Repair, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - B H Zhang
- Department of Orthopedics, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - G Liu
- Department of Interventional Radiology, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - F C Li
- Department of Interventional Radiology, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - X H Shi
- Department of Wound Repair, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - L Niu
- Department of Wound Repair, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| | - Lin Yang
- Department of Interventional Radiology, the First People's Hospital of Zhengzhou, Zhengzhou 450004, China
| |
Collapse
|
6
|
Wang Q, Chang Q, Zhang R, Sun C, Li L, Wang S, Wang Q, Li Z, Niu L. Diffuse sclerosing variant of papillary thyroid carcinoma: ultrasonographic and clinicopathological features in children/adolescents and adults. Clin Radiol 2022; 77:e356-e362. [DOI: 10.1016/j.crad.2022.01.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/21/2022] [Indexed: 01/25/2023]
|
7
|
Duan X, Yang Y, Yang A, Zhao Y, Fan F, Niu L, Hao N. Terbutaline attenuates LPS-induced injury of pulmonary microvascular endothelial cells by cAMP/Epac signaling. Drug Dev Res 2021; 83:699-707. [PMID: 34846077 DOI: 10.1002/ddr.21901] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/11/2021] [Accepted: 11/22/2021] [Indexed: 11/08/2022]
Abstract
Acute lung injury (ALI), characterized by an acute onset of severe hypoxemia, is a common and devastating syndrome usually triggered by lipopolysaccharide (LPS) infection from bacteria. This study is intended to explore whether terbutaline can alleviate LPS-induced human pulmonary microvascular endothelial cell (HPMVEC) injury through cAMP/Epac signaling. LPS was utilized to induce ALI in HPMVECs, and after exposure of LPS-induced HPMVECs to terbutaline, the cellular functions including cell viability and apoptosis were measured by cell counting kit-8 and terminal deoxynucleotidyl transferase dUTP nick-end labeling. The protein expression related to cAMP/Epac signaling, apoptosis, and that of tight junction and inflammatory factors were evaluated at the same time. The effects of terbutaline on cellular functions were confirmed again after the addition of antagonists of cAMP and Epac, respectively. The levels of both cAMP and Epac reduced by LPS was concentration-dependently increased by terbutaline. The apoptosis and endothelial cell permeability damage of LPS-induced HPMVECs were enhanced after the addition of KT-5720 and ESI-09. The beneficial effects of terbutaline on alleviating the inflammation and apoptosis in HPMVECs injured by LPS are mediated by cAMP/Epac signaling, and this evidence would demonstrate the potential of terbutaline in the treatment of ALI.
Collapse
Affiliation(s)
- Xufeng Duan
- Neonatology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yingbo Yang
- Neonatology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Aping Yang
- Neonatology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yan Zhao
- Neonatology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fengjuan Fan
- Neonatology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Leilei Niu
- Neonatology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Nan Hao
- Oncological Surgery Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| |
Collapse
|
8
|
Chen B, Zhai Y, Li Y, Wang L, Wu J, Wang S, Niu L, Zeng H, Wu F, Rong W, Song Y, Sun Y, Yu T, Tang Y, Li N, Fang H, Yang Z, Zhao P, Liu Y, Song Y, Lu N, Jing H, Qi S, Yang Y. Previous/Concurrent Radiation Enhanced the Response of Toripalimab in Advanced and Recurrent Liver Cancer: A Pilot Study. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Song W, Shi X, Liu K, Li R, Niu L, Su L, Wu H. Detection of mitochondrial coupling factor 6 in placental tissues from preeclamptic pregnancies and its influence on biological behavior of trophoblast cells. Exp Ther Med 2021; 22:1185. [PMID: 34475975 PMCID: PMC8406808 DOI: 10.3892/etm.2021.10619] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 03/15/2021] [Indexed: 12/21/2022] Open
Abstract
Increased levels of mitochondrial coupling factor 6 (CF6) are present in the peripheral blood of patients with preeclamptic pregnancies, and are particularly evident in cases of early-onset or severe preeclampsia. The present study examined the location and expression levels of CF6 in the placental tissue and its effect on the biological behavior of trophoblast cells. Placental tissue microarrays, including placental villous cytotrophoblast and extravillous cytotrophoblast microarrays, were used to detect the location and relative expression levels of CF6 in the placenta using immunohistochemistry. It was found that CF6 was expressed in both the normal and preeclamptic placenta, but its levels were higher in the preeclamptic tissues. In addition, the effects of the hypoxic environment on the biological behaviors of trophoblast cells were investigated in the JAR and JEG-3 cell lines. Following induction of hypoxia, the expression levels of CF6 were increased. Moreover, exogenous addition of human recombinant CF6 attenuated cell invasion, but exerted no effect on cell proliferation. At the molecular level, the expression levels of MMP-2 were decreased and were accompanied with a reduction in cell invasion following addition of exogenous CF6. In conclusion, the increased expression levels of CF6 and its effects in reducing the invasive abilities of trophoblast cells may be involved in the pathogenesis of severe preeclampsia.
Collapse
Affiliation(s)
- Wanyu Song
- Department of Gynecology and Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan 450000, P.R. China
| | - Xufeng Shi
- Department of Gynecology and Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan 450000, P.R. China
| | - Kan Liu
- Department of Gynecology and Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan 450000, P.R. China
| | - Ranhong Li
- Department of Gynecology and Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan 450000, P.R. China
| | - Leilei Niu
- Department of Gynecology and Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan 450000, P.R. China
| | - Lijun Su
- Department of Gynecology and Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan 450000, P.R. China
| | - Haiying Wu
- Department of Gynecology and Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan 450000, P.R. China
| |
Collapse
|
10
|
Li Q, Li S, Niu L, Yang S, Niu H, Cheng C. Long noncoding RNA MGC27382 inhibits proliferation and metastasis of non-small cell lung cancer cells via down-regulating AKT/GSK3β pathway. Clin Transl Oncol 2021; 23:2548-2559. [PMID: 34224057 DOI: 10.1007/s12094-021-02658-x] [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: 01/25/2021] [Accepted: 06/02/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Persistent abnormal proliferation and long distant metastasis of tumors contribute to high mortality rate in non-small cell lung cancer (NSCLC) patients. Strategies that prevent NSCLC proliferation and/or metastasis have been studied but still need to be further explored. Numerous studies have proved the diversity functions of long noncoding RNAs (lncRNAs) exerted in cancer, including NSCLC. In this study, we aim to identify and investigate the role of novel lncRNAs in NSCLC progression. METHODS RNA sequence data were retrieved from the Cancer Genome Atlas (TCGA), differentially expressed lncRNAs (DElncRNAs) were screened out based on the R language, then real-time PCR experiment was introduced to detect the DElncRNA expression levels. A series of experiments including MTT, cell cycle, transwell, and wound healing assays were employed to explore the effect of DElncRNA MGC27382 on cell proliferation and invasion ability. RESULTS We detected that DElncRNA MGC27382 is down-regulated in NSCLC tissues and cells. Overexpression of MGC27382 prevented NSCLC cell proliferation via down-regulating cyclin D1 and cyclin E. Moreover, wound healing and transwell assays indicated that the ability of cell invasion and migration could be impaired when cells were treated with MGC27382 overexpression. Further studies demonstrated that MGC27382-mediated inhibition on NSCLC progression can be impaired by LY294002, which is a frequently used inhibitor of AKT/GSK3β pathway. CONCLUSION MGC27382 is down-regulated in NSCLC. It exerts an inhibitory role in NSCLC development through suppressing the AKT/GSK3β pathway. Our results indicate that the lncRNA MGC27382 might be a tumor-suppressor gene in NSCLC. Overexpression of MGC27382 is thought to be a potential strategy for overcoming NSCLC progression.
Collapse
Affiliation(s)
- Q Li
- Department of Respiratory Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - S Li
- Department of Gastroenterology, People's Hospital of Weihaiwei, Weihai, China
| | - L Niu
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, China
| | - S Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - H Niu
- Central Research Laboratory, The Second Hospital of Shandong University, Jinan, China
| | - C Cheng
- Department of Thoracic Surgery, Qilu Hospital, Shandong University, 107 Wenhua Xi Road, Jinan, China.
| |
Collapse
|
11
|
Yaung S, Li J, Pek A, Niu L, Palma J, Schmid M. P35.24 Evaluation of an Up-To-Date Knowledge Base to Aid in Interpreting Somatic Mutations Detected in NGS Testing of Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.725] [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: 11/30/2022]
|
12
|
Niu L, Jiang SW, Wang Y, Peng Y, Fei AH, Wang HR, Li Y, Zhang JC, Meaney C, Gao CJ, Pan SM. Total cholesterol affects the outcome of patients with anterior cerebral artery-occluded acute ischemic stroke treated with thrombolysis. Eur Rev Med Pharmacol Sci 2021; 24:1504-1514. [PMID: 32096200 DOI: 10.26355/eurrev_202002_20209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE In this study, we investigated whether certain types of lipid profiles are major contributors of acute ischemic stroke (AIS). PATIENTS AND METHODS We screened 13,285 hospitalized patients in two stroke medical centers treated with thrombolysis, thrombectomy, or conventional care for anterior cerebral artery-occluded AIS, and found 266 patients. We examined their plasma lipid profiles using the cutoff values from a receiver operating characteristic (ROC) curve. We applied a multivariate logistic regression or Fisher's exact test to compare their outcomes and risk factors. We used the modified Rankin scale (mRS) score to assess the major clinical outcome of the patients 3 months after disease onset. Mortality and symptomatic intracranial hemorrhage (sICH) were both evaluated as risk factors. We analyzed symptoms' improvements at discharge as a disease outcome measure. RESULTS In the patients with anterior cerebral artery-occluded AIS (NIHSS ≥ 10) treated by intravenous (IV) thrombolysis, a total cholesterol (TC) level greater than 5.07 mmol/L predicted a poor outcome (OR 3.55, 95% CI 1.21,10.46, p=0.021). CONCLUSIONS In patients with anterior cerebral artery-occluded AIS, the TC level is a promising prognosis marker for the IV thrombolysis outcome.
Collapse
Affiliation(s)
- L Niu
- Department of Emergency, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Niu L, Wang XF, Wang XR. Crocin suppresses cell proliferation and migration by regulating miR-577/NFIB in renal cell carcinoma. J BIOL REG HOMEOS AG 2021; 34:1523-1527. [PMID: 32885623 DOI: 10.23812/20-284-l] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- L Niu
- Department of Clinical Laboratory, Zouping People's Hospital, Binzhou, China
| | - X F Wang
- Department of Clinical Laboratory, Zouping Hospital of Traditional Chinese Medicine, Binzhou, China
| | - X R Wang
- Department of Clinical Laboratory, Wudi Hospital of Traditional Chinese Medicine, Binzhou, China
| |
Collapse
|
14
|
Zou M, Yang L, Niu L, Zhao Y, Sun Y, Fu Y, Peng X. Baicalin ameliorates Mycoplasma gallisepticum-induced lung inflammation in chicken by inhibiting TLR6-mediated NF-κB signalling. Br Poult Sci 2020; 62:199-210. [PMID: 33252265 DOI: 10.1080/00071668.2020.1847251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 12/30/2022]
Abstract
1. Mycoplasma gallisepticum (MG) causes severe lung inflammation and cell damage by activating toll-like receptor (TLR) signalling, the nuclear factor-kappaB (NF-κB) pathway and pro-inflammatory cytokine gene expression. Baicalin (BA) is a flavonoid extracted from Scutellaria baicalensis, which possesses anti-inflammatory and anti-bacterial properties. This study investigated the effect of BA in MG-induced lung inflammation and its potential mechanism in MG-infected chicken embryo lungs and DF-1 cells.2. The histopathological examination result showed that BA treatment alleviated MG-induced lung pathological changes. In addition, CCK-8 and cell cycle assays showed that BA treatment inhibited MG-induced cell proliferation and cell cycle progression in DF-1 cells.3. The ELISA and RT-qPCR results demonstrated that BA treatment decreased the expression of interleukin-1beta (IL-1β), IL-6, and tumour necrosis factor-alpha (TNF-α) both in MG-infected chicken embryo lungs and DF-1 cells.4. The results revealed that BA inhibited mRNA expression levels of toll-like receptor-6 (TLR6), myeloid differentiation primary response gene-88 (MyD88) and nuclear factor-κB (NF-κB), and the nuclear translocation of NF-κB-p655. In conclusion, the results showed that BA has a protective effect against MG-induced lung inflammation in chicken by inhibiting the TLR6-mediated NF-κB signalling.
Collapse
Affiliation(s)
- M Zou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - L Yang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - L Niu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Zhao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Fu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - X Peng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| |
Collapse
|
15
|
Wang G, Chow RD, Zhu L, Bai Z, Ye L, Zhang F, Renauer PA, Dong MB, Dai X, Zhang X, Du Y, Cheng Y, Niu L, Chu Z, Kim K, Liao C, Clark P, Errami Y, Chen S. CRISPR-GEMM Pooled Mutagenic Screening Identifies KMT2D as a Major Modulator of Immune Checkpoint Blockade. Cancer Discov 2020; 10:1912-1933. [PMID: 32887696 PMCID: PMC7710536 DOI: 10.1158/2159-8290.cd-19-1448] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 06/01/2020] [Accepted: 09/01/2020] [Indexed: 11/16/2022]
Abstract
Immune checkpoint blockade (ICB) has shown remarkable clinical efficacy in several cancer types. However, only a fraction of patients will respond to ICB. Here, we performed pooled mutagenic screening with CRISPR-mediated genetically engineered mouse models (CRISPR-GEMM) in ICB settings, and identified KMT2D as a major modulator of ICB response across multiple cancer types. KMT2D encodes a histone H3K4 methyltransferase and is among the most frequently mutated genes in patients with cancer. Kmt2d loss led to increased DNA damage and mutation burden, chromatin remodeling, intron retention, and activation of transposable elements. In addition, Kmt2d-mutant cells exhibited increased protein turnover and IFNγ-stimulated antigen presentation. In turn, Kmt2d-mutant tumors in both mouse and human were characterized by increased immune infiltration. These data demonstrate that Kmt2d deficiency sensitizes tumors to ICB by augmenting tumor immunogenicity, and also highlight the power of CRISPR-GEMMs for interrogating complex molecular landscapes in immunotherapeutic contexts that preserve the native tumor microenvironment. SIGNIFICANCE: ICB is ineffective in the majority of patients. Through direct in vivo CRISPR mutagenesis screening in GEMMs of cancer, we find Kmt2d deficiency sensitizes tumors to ICB. Considering the prevalence of KMT2D mutations, this finding potentially has broad implications for patient stratification and clinical decision-making.This article is highlighted in the In This Issue feature, p. 1775.
Collapse
Affiliation(s)
- Guangchuan Wang
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Ryan D Chow
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
- M.D.-Ph.D. Program, Yale University, West Haven, Connecticut
| | - Lvyun Zhu
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Zhigang Bai
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Lupeng Ye
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Feifei Zhang
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Paul A Renauer
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
- Combined Program in the Biological and Biomedical Sciences, Yale University, New Haven, Connecticut
- Molecular Cell Biology, Genetics, and Development Program, Yale University, New Haven, Connecticut
| | - Matthew B Dong
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
- M.D.-Ph.D. Program, Yale University, West Haven, Connecticut
- Combined Program in the Biological and Biomedical Sciences, Yale University, New Haven, Connecticut
- Immunobiology Program, Yale University, New Haven, Connecticut
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut
| | - Xiaoyun Dai
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Xiaoya Zhang
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Yaying Du
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Yujing Cheng
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Leilei Niu
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Zhiyuan Chu
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Kristin Kim
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Cun Liao
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Paul Clark
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Youssef Errami
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
| | - Sidi Chen
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut.
- System Biology Institute, Yale University, West Haven, Connecticut
- Center for Cancer Systems Biology, Yale University, West Haven, Connecticut
- M.D.-Ph.D. Program, Yale University, West Haven, Connecticut
- Combined Program in the Biological and Biomedical Sciences, Yale University, New Haven, Connecticut
- Molecular Cell Biology, Genetics, and Development Program, Yale University, New Haven, Connecticut
- Immunobiology Program, Yale University, New Haven, Connecticut
- Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
- Department of Neurosurgery, Yale University School of Medicine, New Haven, Connecticut
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, Connecticut
- Yale Liver Center, Yale University School of Medicine, New Haven, Connecticut
- Center for RNA Science and Medicine, Yale University School of Medicine, New Haven, Connecticut
- Yale Center for Biomedical Data Science, Yale University School of Medicine, New Haven, Connecticut
| |
Collapse
|
16
|
Niu L, Yang G, Liu CX, Zhao XZ, Li XY, Yu M. Observation of the efficacy of naloxone combined with acyclovir in the treatment of children viral encephalitis and its impacts on IL-1 and IL-6. Eur Rev Med Pharmacol Sci 2020; 24:10736-10744. [PMID: 33155234 DOI: 10.26355/eurrev_202010_23434] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To analyze the clinical efficacy of naloxone combined with acyclovir in the treatment of children viral encephalitis and the impacts on inflammatory factors IL-1 and IL-6. PATIENTS AND METHODS 96 children with viral encephalitis were retrospectively analyzed. They were treated from July 2013 to January 2014 in our hospital. They were divided into control group (45 cases treated with acyclovir) and observation group (51 cases treated with acyclovir combined with naloxone). Both groups were treated with comprehensive measures. Changes of the content of serum IL-1 and IL-6 in the two groups before and after treatment were monitored by enzyme-linked immunosorbent assay (ELISA). Signs, recovery time of clinical symptoms, total effective rate, occurrence of adverse reactions and adverse reactions after treatment of children in the two groups were compared. RESULTS Levels of serum IL-1 and IL-6 of children in the control group and the observation group decreased after treatment, and the decrease was greater in the observation group (p<0.05). Signs and recovery time of clinical symptoms of the observation group were significantly shorter than that of the control group (p<0.05). Indexes of serum in the observation group were significantly lower than those of the control group after treatment (p<0.05). The total effective rate of the observation group was significantly higher than that of the control group (p<0.05). The prevalence of adverse reactions and sequelae in the observation group were lower than those in the control group (p<0.05). CONCLUSIONS In the treatment of children, viral encephalitis has naloxone combined with ganciclovir had a more significant effect on the decrease of levels of serum IL-1 and IL-6; naloxone combined with acyclovir in the treatment of children viral encephalitis had better effects, lower adverse reactions and lower prevalence of sequelae compared with sole medication, which is worth clinical promotion.
Collapse
Affiliation(s)
- L Niu
- Department of Clinical Laboratory, Zouping People's Hospital, Zouping, China.
| | | | | | | | | | | |
Collapse
|
17
|
Yaung S, Li J, Pek A, Niu L, Palma J, Schmid M. 136P Evaluation of a regularly updated knowledge base and automated variant interpretation tool for somatic mutations detected in solid tumours. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.257] [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: 11/27/2022] Open
|
18
|
Virot E, Spandan V, Niu L, van Rees WM, Mahadevan L. Elastohydrodynamic Scaling Law for Heart Rates. Phys Rev Lett 2020; 125:058102. [PMID: 32794888 DOI: 10.1103/physrevlett.125.058102] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
Animal hearts are soft shells that actively pump blood to oxygenate tissues. Here, we propose an allometric scaling law for the heart rate based on the idea of elastohydrodynamic resonance of a fluid-loaded soft active elastic shell that buckles and contracts axially when twisted periodically. We show that this picture is consistent with numerical simulations of soft cylindrical shells that twist-buckle while pumping a viscous fluid, yielding optimum ejection fractions of 35%-40% when driven resonantly. Our scaling law is consistent with experimental measurements of heart rates over 2 orders of magnitude, and provides a mechanistic basis for how metabolism scales with organism size. In addition to providing a physical rationale for the heart rate and metabolism of an organism, our results suggest a simple design principle for soft fluidic pumps.
Collapse
Affiliation(s)
- E Virot
- John A. Paulson School of Engineering and Applied Sciences, Harvard University
| | - V Spandan
- John A. Paulson School of Engineering and Applied Sciences, Harvard University
| | - L Niu
- Department of Physics, Harvard University, Cambridge, Massachusetts 02139, USA
| | - W M van Rees
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02138, USA
| | - L Mahadevan
- John A. Paulson School of Engineering and Applied Sciences, Harvard University
- Department of Physics, Harvard University, Cambridge, Massachusetts 02139, USA
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA
| |
Collapse
|
19
|
Zhang C, Zhu F, Jatt AN, Liu H, Niu L, Zhang L, Liu Y. Characterization of co-culture of Aeromonas and Pseudomonas bacterial biofilm and spoilage potential on refrigerated grass carp (Ctenopharyngodon idellus). Lett Appl Microbiol 2020; 71:337-344. [PMID: 32542738 DOI: 10.1111/lam.13341] [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] [Received: 03/11/2020] [Revised: 04/27/2020] [Accepted: 06/01/2020] [Indexed: 01/26/2023]
Abstract
Aeromonas and Pseudomonas are important bacterial species involved in spoilage of refrigerated freshwater fish. In this study, 10 Aeromonas and seven Pseudomonas bacterial strains were isolated from spoiled grass carp and identified. Twelve of seventeen bacterial strains showed high potential of biofilm formation and 14 of 17 can produce extracellular protease. In order to explore the spoilage capacity of dual-species, the sterile grass carp fillets were inoculated with mono- and dual-species of Aeromonas salmonicida and Pseudomonas azotoformans strains. The results revealed significantly higher levels of the total viable count and total volatile basic nitrogen in dual-species as compared to mono-species from day 6. The higher contents of histamine, cadaverine and serious degradation in muscles tissue were also observed in dual-species after 10 days of storage. Results of in vitro experiments showed that the co-culture of A. salmonicida and P. azotoformans significantly increased the bacterial maximum growth rate, promoted the biofilm formation and improved the spoilage capacity of bacterial strains. This study has revealed that the co-culture of Aeromonas and Pseudomonas bacterial strains accelerated spoilage process of grass carp and increased biofilm formation. It indicates that the mixed-cultures of spoilage micro-organisms pose a huge threat to food industry.
Collapse
Affiliation(s)
- C Zhang
- School of Food Engineering, Ludong University, Yantai, China
| | - F Zhu
- School of Food Engineering, Ludong University, Yantai, China
| | - A-N Jatt
- Institute of Microbiology, University of Sindh, Jamshoro, Pakistan
| | - H Liu
- School of Food Engineering, Ludong University, Yantai, China
| | - L Niu
- School of Food Engineering, Ludong University, Yantai, China
| | - L Zhang
- School of Food Engineering, Ludong University, Yantai, China
| | - Y Liu
- School of Food Engineering, Ludong University, Yantai, China
| |
Collapse
|
20
|
Dyring-Andersen B, Coscia F, Santos A, Løvendorf M, BP Sørensen L, Niu L, Andersen JL, Clark R, Skov L, Teunissen M, Mann M. 262 A spatially resolved proteomic atlas of human skin and its associated immune system. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
21
|
Dyring-Andersen B, Løvendorf M, Santos A, Coscia F, BP Sørensen L, Niu L, Andersen JL, Teunissen M, Skov L, Mann M. 270 A spatially resolved proteomic atlas of psoriatic skin. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
22
|
Chen M, Dai W, Shao Q, Wang H, Liu Z, Niu L, Zhang X, Wang H, Xie C. Optical properties of electrically controlled arc-electrode liquid-crystal microlens array for wavefront measurement and adjustment. Appl Opt 2019; 58:6611-6617. [PMID: 31503592 DOI: 10.1364/ao.58.006611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
An electrically controlled arc-electrode liquid-crystal microlens array (AE-LCMLA), with tuning and swing focus, is proposed, which can be utilized to replace the traditional mechanically controlled microlenses and also cooperate with photosensitive arrays to solve the problems of measuring and further adjusting a strong distortion wavefront. The top patterned electrode of a single LC microlens is composed of three arc-electrodes distributed symmetrically around a central microhole for constructing the key controlling structures of the LC cavity in the AE-LCMLA. All the arc-electrodes are individually controlled, and then the focal spot of each microlens can be moved freely in a three-dimensional fashion including along the optical axial direction and over the focal plane by simply adjusting the driving signal voltage applied over each arc-electrode, independently. The featured performances of the AE-LCMLA in a wavelength range of ∼501-561 nm are the driving signal voltage being relatively low (less than ∼11 Vrms), the focal length tuning range being from ∼2.54 mm to ∼3.50 mm, the maximum focus swing distance being ∼52.92 μm, and the focus swing ratio K being ∼20‰.
Collapse
|
23
|
Chen M, Wang H, Dai W, Niu L, Liu J, Shao Q, Zhang X, Wang H, Xie C. Electrically controlled liquid-crystal microlens matrix with a nested electrode array for efficiently tuning and swinging focus. Opt Express 2019; 27:23422-23431. [PMID: 31510618 DOI: 10.1364/oe.27.023422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/21/2019] [Indexed: 06/10/2023]
Abstract
A new type of electrically controlled liquid-crystal microlens matrix (EC-LCMM) with a nested electrode array for efficiently tuning and swinging focus, which means that the focus position can be adjusted in three dimensions, is proposed. The EC-LCMM is constructed by a 10 × 10 arrayed annular-sector-shaped aluminum electrode with a central microhole of 140μm diameter and three annular-sectors of 210μm external diameter and the period length of 280μm. To the arrangement of the patterned electrode, both the 10 × 10 LC microlens array based on the annular-sector-shaped aluminum electrode and the 9 × 9 LC microlens array based on an arrayed quasi-quadrilateral-ring-shaped electrode can be obtained. The 9 × 9 LC microlens array is formed by matching adjacent four annular-sector-shaped sub-electrodes in the 10 × 10 LC microlenses. The developed EC-LCMM can be used to electrically tune focus along the optical axis and also swing focus over a focal plane selected. The typical performances include: electrically tunable focusing in a driving voltage range of 3~7Vrms, the focal length in a range of 2~0.6mm, and the maximum focus swing distance being 16μm. For effectively describing the focus swing efficiency, the parameters of SF and SA are defined, which are the ratios between the focus swinging distance and the current focal length along the optical axis, and between the focus swinging extent and the external diameter of a single annular-sector-shaped aluminum electrode, respectively. The SF and SA of the EC-LCMM are ~16‰ and ~7.6%, respectively. It can be expected that the complex wavefront can be more efficiently measured and adjusted according to the EC-LCMM-based Shack-Hartmann wavefront measuring and adjusting architecture.
Collapse
|
24
|
Liu Y, Liu Y, Ma T, Long H, Niu L, Zhang X, Lei Y, Wang L, Chen Y, Wang Q, Zheng Z, Xu X. A splicing mutation inPHKG1decreased its expression in skeletal muscle and causedPSEmeat in Duroc × Luchuan crossbred pigs. Anim Genet 2019; 50:395-398. [DOI: 10.1111/age.12807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - Y. Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - T. Ma
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - H. Long
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - L. Niu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - X. Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - Y. Lei
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - L. Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - Y. Chen
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - Q. Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - Z. Zheng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
| | - Xuewen Xu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Ministry of Education & College of Animal Science and Technology Huazhong Agricultural University Wuhan430070 China
- The Cooperative Innovation Center for Sustainable Pig ProductionHuazhong Agricultural University Wuhan430070China
- Key Lab of Swine Genetics and Breeding of Ministry of Agriculture and Rural AffairsHuazhong Agricultural University Wuhan 430070 China
| |
Collapse
|
25
|
Niu L, Li S, Liang H, Li H. Correction: The hMLH1 -93G>A Polymorphism and Risk of Ovarian Cancer in the Chinese Population. PLoS One 2019; 14:e0218032. [PMID: 31150525 PMCID: PMC6544311 DOI: 10.1371/journal.pone.0218032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
26
|
Zou J, Guo Y, Niu L, Meng L, Pang N, Zheng H. Effect Of Low-intensity Pulsed Ultrasound On Epileptiform Discharges In A Penicillin-induced Epilepsy Model In Non-human Primates. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
27
|
Guo T, Qi L, Niu L, Meng L, Zheng H. Transcranial pulsed ultrasound regulatesbody temperature in mice. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
28
|
Hua C, Geng Y, Chen Q, Niu L, Cai L, Tao S, Ni Y, Zhao R. Effects of chronic dexamethasone exposure on bile acid metabolism and cecal epithelia function in goats. Domest Anim Endocrinol 2018; 65:9-16. [PMID: 29803110 DOI: 10.1016/j.domaniend.2018.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 12/24/2017] [Revised: 05/08/2018] [Accepted: 05/08/2018] [Indexed: 01/20/2023]
Abstract
Bile acids (BAs) are synthesized in the liver via the oxidation of cholesterol and further metabolized by microbiota in the gut, where they simultaneously impact gut function. In the present study, 10 goats were randomly divided into 2 groups; 1 group was injected with dexamethasone (Dex; 0.2 mg/kg), and the other group was injected with saline as the control (Con) for 21 d. Expression levels of key genes and proteins in the liver and gut mucosa were analyzed and compared to investigate the impact of chronic stress on BA metabolism and related functions in ruminants. The results revealed that Dex decreased plasma total BAs (TBAs) concentration (P < 0.05) but increased TBA concentration in the cecal digesta (P < 0.05). Total cholesterol in the liver decreased moderately in response to Dex. The protein expression of cytochrome P450 family 7 subfamily A member 1 and cytochrome P450 family 27 subfamily A member 1, 2 enzymes that control BA synthesis in the liver, remained unchanged by Dex administration (P > 0.05). The expression of several genes in the cecal mucosa encoding epithelial tight junction proteins, including occludin (P < 0.05), tight junction protein 1 (P < 0.01), and claudin 1 (P < 0.05), increased significantly in response to Dex, and expression of defensin beta 1, which can strengthen the innate immune system, was also upregulated (P < 0.05). In addition, BAs increased the expression of the Solute Carrier family 9 member A 2 (P < 0.01) that encodes a sodium hydrogen exchanger. These results suggest that the Dex-induced disruption of BA homeostasis might be mediated through a liver-independent pathway in goats, and the Dex-induced accumulation of TBAs in the cecal digesta may improve volatile fatty acid transportation and mucosal defense.
Collapse
Affiliation(s)
- C Hua
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China
| | - Y Geng
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China
| | - Q Chen
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China
| | - L Niu
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China
| | - L Cai
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China
| | - S Tao
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China
| | - Y Ni
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China.
| | - R Zhao
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing, P.R. China
| |
Collapse
|
29
|
Tian J, An XJ, Niu L. Analysis of the correlation between the neutrophil-lymphocyte ratio in peripheral blood and perioperative myocardial damage in pediatric patients with frequent ventricular premature beat. Eur Rev Med Pharmacol Sci 2018; 22:1752-1757. [PMID: 29630122 DOI: 10.26355/eurrev_201803_14591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The objective of the present study was to investigate the relationship between the neutrophil-lymphocyte ratio (NLR) in peripheral blood and myocardial damage in pediatric patients with frequent ventricular premature beat (FVPB), and provide a reference for myocardial preservation in these patients. PATIENTS AND METHODS A total of 212 pediatric patients who were treated in the Department of Cardiology, Xuzhou Children's Hospital between December 2014 and March 2016 for FVPB, were selected. The results of routine blood exam, and levels of cardiac troponin I (cTnI) and creatine kinase-MB (CK-MB) in patients after the onset of FVPB were analyzed, and NLR was calculated. According to NLR levels, patients were divided into four groups using quartiles. RESULTS With increases of NLR, the proportion of patients with a history of hypertension and ejection fraction < 50% increased gradually, and white blood cells (WBCs), the peaks of CK-MB and cTnI, and serum creatinine levels were significantly increased (p<0.05, p<0.01). There were no significant differences (p>0.05) in age, sex, body mass index, serum creatinine before treatment, fasting blood glucose, TG, TC, LDL-C, and HDL-C among the four groups. Multiple stepwise regression analysis showed that for patients with FVPB, NLR in peripheral blood was positively correlated with the peak of cTnI (r=0.538, p<0.05). NLR was positively correlated with levels of WBCs (r=0.661, p<0.05) and there was no correlation between NLR and history of hypertension, ejection fraction, and the laboratory results of creatinine peak and CK-MB. The differences were not statistically significant (p>0.05). However, the peak of cTnI was positively correlated with the levels of WBCs (r=0.189, p=0.003). CONCLUSIONS NLR and WBCs in patients with FVPB are positively related to the peak of cTnI. NLR may serve as an excellent marker that reflects myocardial damage in pediatric patients with FVPB.
Collapse
Affiliation(s)
- J Tian
- Department of Cardiology, Xuzhou Children's Hospital, Xuzhou, Jiangsu, China.
| | | | | |
Collapse
|
30
|
Yu M, Wei C, Niu L, Li S, Yu Y. Calculation for tensile strength and fracture toughness of granite with three kinds of grain sizes using three-point-bending test. PLoS One 2018; 13:e0180880. [PMID: 29596422 PMCID: PMC5875745 DOI: 10.1371/journal.pone.0180880] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 06/22/2017] [Indexed: 11/22/2022] Open
Abstract
Tensile strength and fracture toughness, important parameters of the rock for engineering applications are difficult to measure. Thus this paper selected three kinds of granite samples (grain sizes = 1.01mm, 2.12mm and 3mm), used the combined experiments of physical and numerical simulation (RFPA-DIP version) to conduct three-point-bending (3-p-b) tests with different notches and introduced the acoustic emission monitor system to analyze the fracture mechanism around the notch tips. To study the effects of grain size on the tensile strength and toughness of rock samples, a modified fracture model was established linking fictitious crack to the grain size so that the microstructure of the specimens and fictitious crack growth can be considered together. The fractal method was introduced to represent microstructure of three kinds of granites and used to determine the length of fictitious crack. It is a simple and novel method to calculate the tensile strength and fracture toughness directly. Finally, the theoretical model was verified by the comparison to the numerical experiments by calculating the nominal strength σn and maximum loads Pmax.
Collapse
Affiliation(s)
- Miao Yu
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
- * E-mail:
| | - Chenhui Wei
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
| | - Leilei Niu
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
| | - Shaohua Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
| | - Yongjun Yu
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
| |
Collapse
|
31
|
Lei J, Miao Y, Lan Y, Han X, Liu H, Gan Y, Niu L, Wang Y, Zheng Z. A Novel Complementation Assay for Quick and Specific Screen of Genes Encoding Glycerol-3-Phosphate Acyltransferases. Front Plant Sci 2018; 9:353. [PMID: 29616064 PMCID: PMC5867339 DOI: 10.3389/fpls.2018.00353] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 03/02/2018] [Indexed: 06/08/2023]
Abstract
The initial step in glycerolipid biosynthesis, especially in diverse allopolyploid crop species, is poorly understood, mainly due to the lack of an effective and convenient method for functional characterization of genes encoding glycerol-3-phosphate acyltransferases (GPATs) catalyzing this reaction. Here we present a novel complementation assay for quick and specific characterization of GPAT-encoding genes. Its key design involves rational construction of yeast conditional lethal gat1Δgat2Δ double mutant bearing the heterologous Arabidopsis AtGPAT1 gene whose leaky expression under repressed conditions does not support any non-specific growth, thereby circumventing the false positive problem encountered with the system based on the gat1Δgat2Δ mutant harboring the native episomal GAT1 gene whose leaky expression appears to be sufficient for generating enough GPAT activities for the non-specific restoration of the mutant growth. A complementation assay developed based on this novel mutant enables quick phenotypic screen of GPAT sequences. A high degree of specificity of our assay was exemplified by its ability to differentiate effectively GPAT-encoding genes from those of other fatty acyltransferases and lipid-related sequences. Using this assay, we show that Arabidopsis AtGPAT1, AtGPAT5, and AtGPAT7 can complement the phosphatidate biosynthetic defect in the double mutants. Collectively, our assay provides a powerful tool for rapid screening, validation and optimization of GPAT sequences, aiding future engineering of the initial step of the triacylglycerol biosynthesis in oilseeds.
Collapse
Affiliation(s)
- Jie Lei
- School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, China
| | - Yingchun Miao
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, China
| | - Yu Lan
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, China
| | - Xiuxiu Han
- School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, China
| | - Hongbo Liu
- School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, China
| | - Yi Gan
- School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, China
| | - Leilei Niu
- School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, China
| | - Yanyan Wang
- School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, China
| | - Zhifu Zheng
- School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, China
| |
Collapse
|
32
|
Wang H, Niu L, Jiang S, Zhai J, Wang P, Kong F, Jin X. Comprehensive analysis of aberrantly expressed profiles of lncRNAs and miRNAs with associated ceRNA network in muscle-invasive bladder cancer. Oncotarget 2018; 7:86174-86185. [PMID: 27863388 PMCID: PMC5349905 DOI: 10.18632/oncotarget.13363] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 11/07/2016] [Indexed: 12/14/2022] Open
Abstract
Although initially thought to be transcriptional noise, long noncoding RNAs (lncRNAs) are gaining increased attention in human cancers as its diversity function. At present, lncRNAs are regarded as the main part of competing endogenous RNA (ceRNA) network due to its regulation on protein-coding gene expression by acting as miRNA sponges. However, functional roles of lncRNA-mediated ceRNAs in muscle-invasive bladder cancer remain unclear. To clarify relevant potential mechanisms, here we comprehensively compared the expression profiles of mRNAs, lncRNAs and miRNAs between 322 muscle-invasive bladder cancer tissues and 19 non-tumor bladder tissues, based on the Cancer Genome Atlas (TCGA). A total of 22 lncRNAs were identified as aberrantly expressed and had correlations with tumorigenesis and/or progression of muscle-invasive bladder cancer (|log2FoldChange| > 1.5, corrected P value < 0.01). 6 out of the 22 dysregulated lncRNAs functioned as prognostic biomarkers for patients with muscle-invasive bladder cancer according to the overall survival analysis (P value < 0.05). Finally, a dysregulated lncRNA-associated ceRNA network was successfully constructed, which inculdes five muscle-invasive bladder cancer-specific lncRNAs, nine miRNAs and 32 mRNAs. In summary, our study identified novel lncRNAs as candidate prognostic biomarkers and potential therapeutic targets for muscle-invasive bladder cancer, based on large-scale sample size. More importantly, the newly identified ceRNA network will be beneficial for improving the understanding of lncRNA-mediated ceRNA regulatory mechanisms in the pathogenesis of muscle-invasive bladder cancer.
Collapse
Affiliation(s)
- Hanbo Wang
- Minimally Invasive Urology Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Leilei Niu
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Sha Tin, New Territories, Hong Kong SAR, China
| | - Shaobo Jiang
- Minimally Invasive Urology Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Jing Zhai
- Department of Biochemistry, School of Basic Medical Sciences, Taishan Medical University, Taian, China
| | - Ping Wang
- Department of Surgery, Qilu Hospital, Shandong University, Jinan, China
| | - Feng Kong
- Central Laboratory, The Second Hospital of Shandong University, Jinan, China
| | - Xunbo Jin
- Minimally Invasive Urology Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| |
Collapse
|
33
|
Yang SL, Liu LP, Niu L, Sun YF, Yang XR, Fan J, Ren JW, Chen GG, Lai PBS. Downregulation and pro-apoptotic effect of hypoxia-inducible factor 2 alpha in hepatocellular carcinoma. Oncotarget 2018; 7:34571-81. [PMID: 27119229 PMCID: PMC5085177 DOI: 10.18632/oncotarget.8952] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 04/10/2016] [Indexed: 12/18/2022] Open
Abstract
The role of HIF-2α in hepatocellular carcinoma (HCC) is unclear. The aim of the present study was to investigate the expression pattern and role of HIF-2α in HCC patients. Immunohistochemical staining and western blotting analyses were applied to detect the protein level of HIF-2α in 206 paired HCC and peritumoral tissues. Kaplan-Meier survival and Cox proportional hazard regression analyses were performed to identify risk factors for overall survival and recurrence-free survival in these patients. The function of HIF-2α was studied in HCC cells and in vivo models. We found that the protein levels of HIF-2α in HCC tissues were lower than in peritumoral tissues, and were negatively correlated with tumor size (P < 0.05). Kaplan-Meier survival and univariate analysis revealed that HCC patients with high HIF-2α protein levels had longer overall survival (P < 0.05). Over-expression of HIF-2α induced apoptosis in HCC cells and increased the levels of pro-apoptotic proteins, Bak, ZBP-89 and PDCD4, whereas the inhibition of HIF-2α expression achieved opposite results. The findings were confirmed in a mouse HCC xenograft model. In conclusion, our study revealed that HIF-2α was decreased and played an anti-tumorigenic role in HCC.
Collapse
Affiliation(s)
- Sheng-Li Yang
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Li-Ping Liu
- Department of Hepatobiliary and Pancreas Surgery, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, Guangdong, China
| | - Leilei Niu
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Yun-Fan Sun
- Department of Liver Surgery, Zhongshan Hospital & Liver Cancer Institute, Fudan University, Shanghai, China
| | - Xing-Rong Yang
- Department of Liver Surgery, Zhongshan Hospital & Liver Cancer Institute, Fudan University, Shanghai, China
| | - Jia Fan
- Department of Liver Surgery, Zhongshan Hospital & Liver Cancer Institute, Fudan University, Shanghai, China
| | - Jian-Wei Ren
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - George G Chen
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Paul B S Lai
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| |
Collapse
|
34
|
Gu L, Mazzoni A, Gou Y, Pucci C, Breschi L, Pashley D, Niu L, Tay F. Zymography of Hybrid Layers Created Using Extrafibrillar Demineralization. J Dent Res 2018; 97:409-415. [PMID: 29294298 DOI: 10.1177/0022034517747264] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- L. Gu
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology & Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, PR China
| | - A. Mazzoni
- Department of Biomedical and Neuromotor Sciences, DIBINEM, University of Bologna–Alma Mater Studiorum, Bologna, Italy
| | - Y. Gou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - C. Pucci
- Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University UNESP São Jose dos Campos, São Paulo, Brazil
| | - L. Breschi
- Department of Biomedical and Neuromotor Sciences, DIBINEM, University of Bologna–Alma Mater Studiorum, Bologna, Italy
| | - D.H. Pashley
- Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - L. Niu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi, PR China
| | - F.R. Tay
- Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, USA
| |
Collapse
|
35
|
Hu L, Cao H, Zhao J, Niu L, Chen Y, Zhou N, Zhan J, Yu H, Chen K, Li S, Sheng X, Shen J, Qin S, Feng C, Ge J, Zhang B, Zhang S. Design and test of irradiation-related components in ITER radial x-ray camera. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817002003] [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: 11/14/2022] Open
|
36
|
Niu L, Xu Z, Chen F, Yang G. PUB042 The Detection and Analysis of RET Gene Fusion in Non-Small Lung Cancer in High-Throughput Sequencing. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
37
|
Niu L, Liu L, Yang S, Ren J, Lai PBS, Chen GG. New insights into sorafenib resistance in hepatocellular carcinoma: Responsible mechanisms and promising strategies. Biochim Biophys Acta Rev Cancer 2017; 1868:564-570. [PMID: 29054475 DOI: 10.1016/j.bbcan.2017.10.002] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [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: 07/31/2017] [Revised: 10/04/2017] [Accepted: 10/15/2017] [Indexed: 02/06/2023]
Abstract
It is disappointing that only a few patients with hepatocellular carcinoma (HCC) obtain a significant survival benefit from the sorafenib treatment, which is currently regarded as a first-line chemotherapeutic therapy in patients with advanced HCC. Most patients are highly refractory to this therapy. Therefore, it is necessary to identify resistant factors and explore potential protocols that can be used to overcome the resistance or substitute sorafenib once the resistance is formed. In fact, a growing body of studies has been focusing on the resistance mechanisms or the method to overcome it. The limitation of sorafenib efficacy has been partially but not fully elucidated. Moreover, some protocols have shown encouraging outcomes but still need to be further verified in clinical trials. In this review, we summarize the recent findings on the potential mechanisms that contribute to sorafenib resistance and discuss strategies that can be used to improve the treatment outcome.
Collapse
Affiliation(s)
- Leilei Niu
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China; Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, China
| | - Liping Liu
- Department of Hepatobiliary and Pancreas Surgery, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, Guangdong Province, China
| | - Shengli Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jianwei Ren
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Paul B S Lai
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China.
| | - George G Chen
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
| |
Collapse
|
38
|
Adeyinka A, Niu L, Fang C, Babatunde B, Xu X. GBP6: differential expression in pulmonary alveolar macrophages under PRRSV infection and association with blood parameters of its missense mutation. S AFR J ANIM SCI 2017. [DOI: 10.4314/sajas.v47i5.5] [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: 11/17/2022]
|
39
|
Li CL, Niu L, Fu MY, Tian J, Wang QW, An XJ. Correlation between NFATC1 gene polymorphisms and congenital heart disease in children. Eur Rev Med Pharmacol Sci 2017; 21:3441-3446. [PMID: 28829497] [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: 06/07/2023]
Abstract
OBJECTIVE To analyze the links between NFATC1 gene polymorphism and congenital heart disease in children. PATIENTS AND METHODS In the present study, we selected 85 children patients with congenital heart disease who were hospitalized from February 2013 to February 2015 as research subjects (observation group), and 92 healthy subjects as control group. Restriction fragment length polymorphism (RFLP) was used for analysis of NFATC1 gene in samples from each group. RESULTS The distribution of NFATC1 genotype and allele between the observation group (children with congenital heart disease) and the control group showed no significant difference (p >0.05), but AA, GG genotypes, and allele frequency between pathological samples of children with congenital heart disease and the control group displayed significant difference (p <0.05) (X2 = 16.04, p <0.05; X2 = 16.29, p <0.05). Further analyses showed that AA, GG, AG genotype and allele frequency among children with congenital heart disease in observation group also showed a difference, i.e., homozygote (AA, GG) ratio in children with severe congenital heart disease is relatively high. CONCLUSIONS There is a correlation between NFATC1 genes and the incidence of congenital heart disease in children, and a correlation between different genotypes and allele frequency and the incidence of the disease.
Collapse
Affiliation(s)
- C-L Li
- Department of Cardiology, Xuzhou Children's Hospital, Xuzhou, Jiangsu, China.
| | | | | | | | | | | |
Collapse
|
40
|
Niu L, Li HY, Tang W, Gong S, Zhang LJ. Evolving safety practices in the setting of modern complex operating room: role of nurses. J BIOL REG HOMEOS AG 2017; 31:659-665. [PMID: 28954456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Operating room (OR) nursing previously referred to patient care provided during the intra-operative phase and the service provided within the OR itself. With the expansion of responsibilities of nurses, OR nursing now includes pre-operative and post-operative periods, therefore peri-operative nursing is accepted as a nursing process in OR in the contemporary medical literature. Peri-operative nurses provide care to the surgical patients during the entire process of surgery. They have several roles including those of manager or a director, clinical practitioner (scrub nurse, circulating nurse and nurse anesthetist), educator as well as researcher. Although, utmost priority is placed on insuring patient safety and well-being, they are also expected to participate in professional organization, continuing medical education programs and participating in research activities. A Surgical Patient Safety Checklist formulated by the World Health Organization serves as a major guideline to all activities in OR, and peri-operative nurses are key personnel in its implementation. Communication among the various players of a procedure in OR is key to successful patient outcome, and peri-operative nurses have a central role in making it happen. Setting up of OR in military conflict zones or places that suffering a widespread natural disaster poses a unique challenge to nursing. This review discusses all aspects of peri-operative nursing and suggests points of improvement in patient care.
Collapse
Affiliation(s)
- L Niu
- Department of Operating Room, the First Hospital of Jilin University, Changchun, China
| | - H Y Li
- Department of Nursing, the First Hospital of Jilin University, Changchun, China
| | - W Tang
- Department of Operating Room, the First Hospital of Jilin University, Changchun, China
| | - S Gong
- Department of Operating Room, the First Hospital of Jilin University, Changchun, China
| | - L J Zhang
- Department of Thoracic Surgery, the First Hospital of Jilin University, Changchun, China
| |
Collapse
|
41
|
Niu L, Liu HL, Yang ZM. [Research update on the regulation of monocyte/macrophages by Krüppel-like factors in atherosclerosis]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:451-453. [PMID: 28511337 DOI: 10.3760/cma.j.issn.0253-3758.2017.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
42
|
Hu L, Chen K, Chen Y, Li S, Shen J, Sheng X, Niu L, Cheng Y, Zhao J. Outline Design of ITER Radial X-Ray Camera Diagnostic. Fusion Science and Technology 2017. [DOI: 10.13182/fst15-137] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- L Hu
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - K Chen
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Y Chen
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - S Li
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - J Shen
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - X Sheng
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - L Niu
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Y Cheng
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - J Zhao
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| |
Collapse
|
43
|
Zheng T, Hou Y, Zhang P, Zhang Z, Xu Y, Zhang L, Niu L, Yang Y, Liang D, Yi F, Peng W, Feng W, Yang Y, Chen J, Zhu YY, Zhang LH, Du Q. Profiling single-guide RNA specificity reveals a mismatch sensitive core sequence. Sci Rep 2017; 7:40638. [PMID: 28098181 PMCID: PMC5241822 DOI: 10.1038/srep40638] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 12/09/2016] [Indexed: 12/26/2022] Open
Abstract
Targeting specificity is an essential issue in the development of CRISPR-Cas technology. Using a luciferase activation assay, off-target cleavage activity of sgRNA was systematically investigated on single nucleotide-mismatched targets. In addition to confirming that PAM-proximal mismatches are less tolerated than PAM-distal mismatches, our study further identified a "core" sequence that is highly sensitive to target-mismatch. This sequence is of 4-nucleotide long, located at +4 to +7 position upstream of PAM, and positioned in a steric restriction region when assembled into Cas9 endonuclease. Our study also found that, single or multiple target mismatches at this region abolished off-target cleavage mediated by active sgRNAs, thus proposing a principle for gene-specific sgRNA design. Characterization of a mismatch sensitive "core" sequence not only enhances our understanding of how this elegant system functions, but also facilitates our efforts to improve targeting specificity of a sgRNA.
Collapse
Affiliation(s)
- Ting Zheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yingzi Hou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Pingjing Zhang
- Biomics Biotechnologies co. Ltd, Nantong 226016, Jiangsu Province, China
- Small RNA Technology and Application Institute, Nantong University, Nantong 226016, Jiangsu Province, China
| | - Zhenxi Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ying Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Letian Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Leilei Niu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yi Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Da Liang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Fan Yi
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Wei Peng
- Biomics Biotechnologies co. Ltd, Nantong 226016, Jiangsu Province, China
- Small RNA Technology and Application Institute, Nantong University, Nantong 226016, Jiangsu Province, China
| | - Wenjian Feng
- Biomics Biotechnologies co. Ltd, Nantong 226016, Jiangsu Province, China
- Small RNA Technology and Application Institute, Nantong University, Nantong 226016, Jiangsu Province, China
| | - Ying Yang
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jianxin Chen
- Biomics Biotechnologies co. Ltd, Nantong 226016, Jiangsu Province, China
- Small RNA Technology and Application Institute, Nantong University, Nantong 226016, Jiangsu Province, China
| | - York Yuanyuan Zhu
- Biomics Biotechnologies co. Ltd, Nantong 226016, Jiangsu Province, China
- Small RNA Technology and Application Institute, Nantong University, Nantong 226016, Jiangsu Province, China
| | - Li-He Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Quan Du
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| |
Collapse
|
44
|
Wang QW, Fu MY, Li CL, Niu L, Tian J, An XJ. Correlation analysis between GNAS2 gene polymorphisms in children with arrhythmia. Eur Rev Med Pharmacol Sci 2017; 21:317-321. [PMID: 28165554] [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: 06/06/2023]
Abstract
OBJECTIVE The objective of the present study was to analyze the correlation between GNAS2 gene polymorphisms and children with arrhythmia. PATIENTS AND METHODS We followed 89 children with arrhythmia treated in our hospital from April 2013 to April 2015, comprising the observation group, while 92 healthy subjects were taken as the control group. We analyzed polymorphisms of the GNAS2 gene from both groups by restriction fragment length polymorphism (RFLP). RESULTS There were no significant differences (p>0.05) in GNAS2 genotype or allelic distribution between the observation group and control group. However, there were significant differences in the gene frequency of homozygotes (TT and GG) and alleles between the control group and samples from children with arrhythmia (p<0.05) (X2=16.57, p<0.05; X2=17.48, p<0.05). Further study of samples from both groups indicate that gene frequency of homozygous (TT and GG) or heterozygous (TG) genes and alleles also had differences, indicating that homozygotes (TT and GG) are in relatively high proportion among patients with severe cases of arrhythmia. CONCLUSIONS Morbidity in patients with arrhythmia is related to GNAS2 gene polymorphisms. Differences in genotype and allele frequency are related to the severity of illness.
Collapse
Affiliation(s)
- Q-W Wang
- Department of Cardiology, Xuzhou Children's Hospital, Xuzhou, Jiangsu, China.
| | | | | | | | | | | |
Collapse
|
45
|
Zhang Z, Niu L, Tang X, Feng R, Yao G, Chen W, Li W, Sun L. OP0163 Mesenchymal Stem Cells Prevent Podocyte Injury in Lupus Prone Mice via Educating Macrophage into An Anti-Inflammatory Phenotype. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2605] [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: 11/03/2022]
|
46
|
Niu L, Fu MY, Tian J, He XH, Zhang HN, Wang QW, Wang Y, Li CL, Wang ZZ, An XJ. [Phosphatase and tensin homolog deleted on chromosome ten/phosphatidyl Inositol 3-kinase/vascular endothelial growth factor signaling pathway changes in the rabbit Kawasaki disease model]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:250-4. [PMID: 26988681 DOI: 10.3760/cma.j.issn.0253-3758.2016.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To observe the changes of phosphatase and tensin homolog deleted on chromosome ten(PTEN)/ phosphatidyl Inositol 3-kinase(PI3K)/ vascular endothelial growth factor(VEGF)signaling pathway in a rabbit Kawasaki disease model. METHODS Model of Kawasaki disease was established in weanling Japanese big-eared rabbits with 10% bovine serum venous injection (2.5 ml/kg, 2 times, and 2 week's interval) through the ear. Twenty four rabbits were divided into 4 groups: control group (without injection of 10% bovine serum albumin, six rabbits); 1 day group (sacrificed a the second day after the establishment of Kawasaki disease models, six rabbits); 7 day group (sacrificed at the seventh day after establishment of Kawasaki disease model, six rabbits); 30 day group (sacrificed at the thirtieth day after establishment of Kawasaki disease model, six rabbits). Pathological analysis was performed on coronary artery tissue samples. The express of PTEN and PI3K were detected by immunohistochemistry. The levels of VEGF and CK were also examined with ELISA and white blood cells were counted. RESULTS (1) Coronary artery of model groups was thinner, distorted and had enlarged lumen. (2) PTEN expression in 1 d group, 7 d group and 30 d group were 58.5 ± 12.9, 73.2±9.9 and 109.6 ± 24.4, respectively, significantly higher than in the control group (25.5 ± 6.9, P<0.01 or 0.05). (3) The express of PI3K was significantly upregulated in 1 d group(57.2±11.1)and 7 d group(39.9±4.8) compared to control group(19.1±3.5, P<0.01 or 0.05). The expression level of PI3K in 30 d group was 18.8 ± 7.5, which was similar as control group (P>0.05) and significantly lower than 1 d and 7 d group (both P<0.05). (4) Similarly, the level of VEGF in 1 d group, 7 d group ((89.1 ± 15.5) ng/L, (76.9±9.9) ng/L) were significantly higher while it was significantly lower in 30 d group ((19.8 ± 4.4)ng/L) compared with the control group ((33.9 ± 6.7) ng/L, P<0.01 or 0.05). The level of VEGF in 7 d group was significantly lower than in 1 d group (P<0.05) and the level of VEGF was significantly lower in 30 d group than in 7 d group (P<0.01). (5)Creatine kinase levels were significantly higher in 30 d group than in control group (P<0.05) and there were no significantly different between control group, 1 d group and 7 d group(all P>0.05). (6)White blood cell count were significantly higher in 1 d group, 7 d group and 30 d group than in control group (all P<0.01). CONCLUSION The level of PTEN/PI3K/VEGF signaling pathway change after establishment of rabbit Kawasaki disease model and the signaling pathway might be involved in this model.
Collapse
Affiliation(s)
- L Niu
- Department of Cardiorascular, Children's Hospital of Xuzhou City, Xuzhou 221006, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Li J, Fan W, Niu L, Yang J. Percutaneous computed tomography-guided cryoablation for recurrent malignant primary retroperitoneal tumors: initial experience of 39 patients. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.216] [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: 11/28/2022] Open
|
48
|
Niu L, Han DW, Xu RL, Han B, Zhou X, Wu HW, Li SH, Qu CX, Liu M. A High-sugar High-fat Diet Induced Metabolic Syndrome Shows some Symptoms of Alzheimer's Disease in Rats. J Nutr Health Aging 2016; 20:509-13. [PMID: 27102788 DOI: 10.1007/s12603-015-0601-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVES Cases of sporadic Alzheimer's disease (SAD) are the predominant form of the age-related dementia. New evidence suggests that metabolic syndrome (MS), a metabolic disorder, is an initiating factor of some SAD cases. A high-sugar high-fat diet could cause MS, we aimed to investigate whether it could directly lead to SAD. MEASUREMENTS The characteristic molecules of AD (hippocampus Aβ and Tau) were tested by using ELISA and western blotting to confirm the happening hallmarks of AD in brain. MS and inflammation related biochemical indicators were measured using immunological method. Proteins associated with the insulin resistance signal pathway (JNK, PI-3K, AKT, GSK-3β, GLUT3) were evaluated using western blotting method. The levels of reactive oxygen species (ROS) were measured by immunofluorescence method. RESULTS Expressions of hippocampus Aβ, phosphorylation-Tau (p-Tau), inflammatory factors and p-JNK, Gsk-3βwere higher in the model rats than those in the control rats and expressions of p-PI3K, p-AKT and GLUT3 were reversed. CONCLUSIONS The MS model animals, which can induce the characteristics symptoms of AD, and therefore it may be preliminarily considered that the AD pertains to the MS-related diseases.
Collapse
Affiliation(s)
- L Niu
- Dewu Han, Institute of Liver Disease, ShanXi Medical University The New South Road No. 56, Taiyuan ShanXi , 030001 China. , Tel: +86-0351-4135073, Fax number: +86-0351-4135073
| | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Tian F, Zhou L, Zhang Z, Niu L, Zhang L, Chen C, Zhou J, Yang H, Wang X, Fu B, Huang C, Pashley DH, Tay FR. Paucity of Nanolayering in Resin-Dentin Interfaces of MDP-based Adhesives. J Dent Res 2015; 95:380-7. [PMID: 26701351 DOI: 10.1177/0022034515623741] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [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: 11/16/2022] Open
Abstract
Self-assembled nanolayering structures have been reported in resin-dentin interfaces created by adhesives that contain 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP). These structures have been hypothesized to contribute to bond durability. The objective of the present study was to determine the extent of nanolayering in resin-dentin interfaces after application of commercialized 10-MDP-containing self-etch and universal adhesives to human dentin. Seven commercialized adhesives were examined: Adhese Universal (Ivoclar-Vivadent), All-Bond Universal (Bisco, Inc.), Clearfil SE Bond 2, Clearfil S3 Bond Plus, Clearfil Universal Bond (all from Kuraray Noritake Dental Inc.), G-Premio Bond (GC Corp.), and Scotchbond Universal (3M ESPE). Each adhesive was applied in the self-etch mode on midcoronal dentin according to the respective manufacturer's instructions. Bonded specimens (n = 6) were covered with flowable resin composite, processed for transmission electron microscopy, and examined at 30 random sites without staining. Thin-film glancing angle X-ray diffraction (XRD) was used to detect the characteristic peaks exhibited by nanolayering (n = 4). The control consisted of 15%wt, 10%wt, and 5%wt 10-MDP (DM Healthcare Products, Inc.) dissolved in a mixed solvent (ethanol and water weight ratio 9:8, with photoinitiators). Experimental primers were applied to dentin for 20 s, covered with hydrophobic resin layer, and examined in the same manner. Profuse nanolayering with highly ordered periodicity (~3.7 nm wide) was observed adjacent to partially dissolved apatite crystallites in dentin treated with the 15% 10-MDP primer. Three peaks in the 2θ range of 2.40° (3.68 nm), 4.78° (1.85 nm), and 7.18° (1.23 nm) were identified from thin-film XRD. Reduction in the extent of nanolayering was observed in the 10% and 5% 10-MDP experimental primer-dentin interface along with lower intensity XRD peaks. Nanolayering and characteristic XRD peaks were rarely observed in specimens prepared from the commercialized adhesives. The sparsity of nanolayering in resin-dentin interfaces created by commercialized adhesives challenges its clinical effectiveness as a mechanism for improving bond longevity in dentin bonding.
Collapse
Affiliation(s)
- F Tian
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - L Zhou
- Key Laboratory for Oral Biomedical Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Z Zhang
- Department of Prosthodontics, Zhejiang University School and Hospital of Stomatology, Hangzhou, China
| | - L Niu
- State Key Laboratory of Military Stomatology, School of Stomatology, The Fourth Military Hospital, Xi'an, Shaanxi, China
| | - L Zhang
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - C Chen
- Department of Operative Dentistry & Endodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, PR China
| | - J Zhou
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - H Yang
- Key Laboratory for Oral Biomedical Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - X Wang
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - B Fu
- Department of Prosthodontics, Zhejiang University School and Hospital of Stomatology, Hangzhou, China
| | - C Huang
- Key Laboratory for Oral Biomedical Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - D H Pashley
- The Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - F R Tay
- The Dental College of Georgia, Augusta University, Augusta, GA, USA
| |
Collapse
|
50
|
Liu XJ, Duan CF, Fu WW, Niu L, Li Y, Sui QL, Xu WJ. Correlation between magnetic resonance perfusion weighted imaging of radiation brain injury and pathology. Genet Mol Res 2015; 14:16317-24. [PMID: 26662426 DOI: 10.4238/2015.december.8.23] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We used magnetic resonance perfusion weighted imaging and pathological evaluation to examine different stages of radiation-induced brain injury and to investigate the correlation between the relative cerebral blood volume (rCBV) ratio and vascular endothelial growth factor (VEGF). Thirty adult rats were randomly divided into 2 groups: control and radiation group. The control group was not subjected to irradiation. The irradiation group rats were examined by magnetic resonance imaging and magnetic resonance perfusion weighted imaging at 1, 3, 6, 9, and 12 months after radiation treatment. We measured the rCBV, mean transit time, and time to peak. Hematoxylin and eosin staining, immunohistochemical staining, and electron microscopy were performed. VEGF absorbance was evaluated by immunohistochemical staining. Compared with the control group, the differences in rCBV, mean transit time, time to peak, and VEGF absorbance after 3 months were statistically significant (P < 0.05). rCBV was positively correlated with VEGF (r = 0.94, P < 0.05). Magnetic resonance perfusion weighted imaging can reflect pathophysiological changes in brain tissue after irradiation. Decreased expression of VEGF plays a critical role in the pathogenesis of radiation-induced brain injury.
Collapse
Affiliation(s)
- X J Liu
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - C F Duan
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - W W Fu
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - L Niu
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Y Li
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Q L Sui
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - W J Xu
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| |
Collapse
|