51
|
Cao Q, Fan L, Li B. Delta Radiomics of 18F-FDG PET Images to Predict Prognosis of Esophagus Squamous Cell Carcinoma Patients Treated With Concurrent Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
52
|
Saji S, Cussac AL, Andre F, Robson M, Harbeck N, Schmid P, Cescon D, Ahn J, Nanda R, Fan L, Mejia J, Karantza V, Bardia A, Rugo H. 68TiP KEYLYNK-009: A phase II/III, open-label, randomized study of pembrolizumab (pembro) + olaparib (ola) vs pembro + chemotherapy after induction with first-line (1L) pembro + chemo in patients (pts) with locally recurrent inoperable or metastatic TNBC. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
53
|
Fan L, Cao Q, Li B. Another Effort To Defining Optimal Radiation Dose In Esophageal Cancer: Recursive Partitioning Analysis By Revisited the National Cancer Data Base. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
54
|
Fan L, Cao Q, Li B. Defining Optimal Radiation Dose Range In Esophageal Squamous Cell Carcinoma And Adenocarcinoma: A Custom Analysis By Revisiting The National Cancer Data Base. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
55
|
Chen Z, Li Y, Tan B, Zhao Q, Fan L, Li F, Zhao X. Progress and current status of molecule-targeted therapy and drug resistance in gastric cancer. Drugs Today (Barc) 2020; 56:469-482. [PMID: 32648857 DOI: 10.1358/dot.2020.56.7.3112071] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Gastric cancer is one of the most common malignant tumors in the world. In China, its morbidity and mortality are second only to lung cancer. Chemotherapy combined with targeted therapy brings survival benefits to patients with advanced gastric cancer. Targets for targeted therapy of gastric cancer include human epidermal growth factor receptor (EGFR), human epidermal growth factor receptor 2 (HER2), vascular endothelial growth factor (VEGF), mammalian target of rapamycin (mTOR) and Claudin 18.2 (CLDN 18.2). The main challenge of tumor molecule-targeted drugs is resistance. The main mechanisms of drug resistance include tumor establishment of compensatory signaling pathways, target protein changes, tumor microenvironment changes, tumor heterogeneity and tumor adaptation to targeted drugs. The combined action of multiple drug resistance mechanisms promotes the development of targeted drug resistance. In order to attract the attention of researchers, this paper reviews the mechanisms of drug resistance in gastric cancer-targeted therapy. In addition, the research status of drug resistance in molecule-targeted therapy of gastric cancer is summarized. It is of great clinical significance to explore the drug resistance mechanisms of targeted drugs and reverse drug resistance in gastric cancer. Last, the future development of molecule-targeted therapy is prospected.
Collapse
|
56
|
Fan L, Yu JY, Yue L, Yu HY. [Microscopic veneer restorations of anterior teeth guided by three-dimensional printing guide plate: a case report]. ZHONGHUA KOU QIANG YI XUE ZA ZHI = ZHONGHUA KOUQIANG YIXUE ZAZHI = CHINESE JOURNAL OF STOMATOLOGY 2020; 55:750-753. [PMID: 33045786 DOI: 10.3760/cma.j.cn112144-20200608-00323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
57
|
Zhang JC, Zheng YY, Tang JN, Qin B, Yang XM, Guo QQ, Guo JC, Cheng MD, Zhang ZL, Song FH, Liu ZY, Wang K, Jiang LZ, Fan L, Yue XT, Bai Y, Dai XY, Zheng RJ, Yin SS, Zhang JY. Elevated fibrinogen to platelet is associated with increased all-cause mortality among patients undergoing primary percutaneous coronary intervention. J BIOL REG HOMEOS AG 2020; 34:1401-1405. [PMID: 32933232 DOI: 10.23812/20-140-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
58
|
Rugo H, Cussac AL, André F, Robson M, Saji S, Harbeck N, Schmid P, Cescon D, Ahn JS, Nanda R, Fan L, Mejia J, Karantza V, Bardia A. 356TiP A phase II/III, open-label, randomized trial of pembrolizumab + olaparib vs. pembrolizumab + chemotherapy after induction with pembrolizumab + chemotherapy in locally recurrent inoperable or metastatic triple-negative breast cancer: KEYLYNK-009. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
59
|
Agarwal N, Evans R, Abrams K, Dequen-O'Byrne P, McCrea C, Muston D, Gresty C, Ghate S, Fan L, Hettle R, Hawkins N. 622P Exploring the impact of treatment switching on the interim overall survival (OS) results of the PROfound study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
60
|
Li Y, He X, Fan L, Zhang X, Xu Y, Xu X. Identification of a novel immune prognostic model in gastric cancer. Clin Transl Oncol 2020; 23:846-855. [PMID: 32857339 DOI: 10.1007/s12094-020-02478-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/10/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE The tumor immune microenvironment (TIME) is now considered as an important factor during gastric cancer (GC) development. This study identified a novel immune-related risk model for predicting prognosis and assessing the immune status of GC patients. METHODS Transcriptomic data were obtained from the TCGA database. The differential expressed immune-related genes (IRGs) were identified through the ImmPort portal. Enrichment analysis was performed to explore the potential molecular mechanism of these IRGs. By the Cox regression analysis, we constructed the immune prognostic model. Then, the association between the model and the immune microenvironment was estimated. The model was validated in the GSE84433 dataset. RESULTS Totally, we identified 222 differentially expressed IRGs. These IRGs were closely correlated with immune response and immune signaling pathways. Through the Cox regression analysis, we developed the immune prognostic model based on the expression of seven IRGs (CXCL3, NOX4, PROC, FAM19A4, RNASE2, IGHD2-15, CGB5). Patients were stratified into two groups according to immune-related risk scores. Survival analysis indicated that the prognosis of high-risk patients was poorer than low-risk patients. Moreover, the immune-related risk score was an independent prognostic biomarker. More importantly, we found that the infiltration level of immunosuppressive cells and the expression of inhibitory immune checkpoints were higher in high-risk patients. The immune microenvironment tended to be a suppressive status in patients with high-risk scores. CONCLUSION This study demonstrated that our model had predictive value for prognosis and the TIME in GC. It might be a robust tool to improve personalized patient management.
Collapse
|
61
|
Liu C, Yu Y, Fleming J, Wang T, Shen S, Wang Y, Fan L, Ma J, Gu Y, Chen Y. Severe COVID-19 cases with a history of active or latent tuberculosis. Int J Tuberc Lung Dis 2020; 24:747-749. [PMID: 32718415 DOI: 10.5588/ijtld.20.0163] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
62
|
Yang T, Zhao YL, Li WP, Yu CY, Luan JH, Lin DY, Fan L, Jiao ZB, Liu WH, Liu XJ, Kai JJ, Huang JC, Liu CT. Ultrahigh-strength and ductile superlattice alloys with nanoscale disordered interfaces. Science 2020; 369:427-432. [PMID: 32703875 DOI: 10.1126/science.abb6830] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 06/08/2020] [Indexed: 12/24/2022]
Abstract
Alloys that have high strengths at high temperatures are crucial for a variety of important industries including aerospace. Alloys with ordered superlattice structures are attractive for this purpose but generally suffer from poor ductility and rapid grain coarsening. We discovered that nanoscale disordered interfaces can effectively overcome these problems. Interfacial disordering is driven by multielement cosegregation that creates a distinctive nanolayer between adjacent micrometer-scale superlattice grains. This nanolayer acts as a sustainable ductilizing source, which prevents brittle intergranular fractures by enhancing dislocation mobilities. Our superlattice materials have ultrahigh strengths of 1.6 gigapascals with tensile ductilities of 25% at ambient temperature. Simultaneously, we achieved negligible grain coarsening with exceptional softening resistance at elevated temperatures. Designing similar nanolayers may open a pathway for further optimization of alloy properties.
Collapse
|
63
|
Polonsky WH, Fisher L, Hessler D, Liu J, Fan L, McAuliffe-Fogarty AH. Worries and concerns about hypoglycemia in adults with type 1 diabetes: An examination of the reliability and validity of the Hypoglycemic Attitudes and Behavior Scale (HABS). J Diabetes Complications 2020; 34:107606. [PMID: 32354623 DOI: 10.1016/j.jdiacomp.2020.107606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/10/2020] [Accepted: 04/19/2020] [Indexed: 11/26/2022]
Abstract
AIMS To examine the factor structure, validity and reliability of the Hypoglycemic Attitudes and Behavior Scale (HABS) in T1D adults (previously examined only in T2D adults), and to determine if it has unique value, after controlling for hypoglycemic fear. METHODS The original 14 HABS items were submitted to a confirmatory factor analysis (CFA) with T1D participants. Construct validity criteria included diabetes distress, generalized anxiety, well-being, hypoglycemic fear, hypoglycemia history and self-reported glycemic control. RESULTS A CFA yielded a similar 3-factor solution, with all items loading on the same factors as in the analyses with T2D adults: Hypoglycemia Anxiety, Avoidance and Confidence. Higher levels of Anxiety and Avoidance were significantly associated with poorer well-being and higher levels of generalized anxiety, diabetes distress and hypoglycemic fear, with correlations in the reverse direction for Confidence. After controls (including hypoglycemic fear), the HABS subscales were significantly linked to several criterion variables. CONCLUSIONS Though originally developed and validated with T2D adults, the HABS demonstrates sufficient validity and reliability for use with a T1D population; and it captures unique critical elements of hypoglycemic concerns. Thus, it may contribute to a greater understanding of hypoglycemia management and more targeted clinical interventions in a T1D population.
Collapse
|
64
|
Fan L, Dong B, Xue W. Genomic analysis of castration sensitive and resistant prostate cancer patients by multiple-gene targeted sequencing. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33173-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
65
|
Li S, Li XD, Wang GP, Liang C, Jing JP, Liu MM, Zhang C, Lin T, Zhou YH, Song YZ, Tan C, Wang Q, Fan L. [Consideration of surgeons participating in 2019 coronavirus disease emergency medical rescue]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 2020; 58:404-407. [PMID: 32253891 DOI: 10.3760/cma.j.cn112139-20200317-00226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
As a newly epidemic, 2019 coronavirus disease (COVID-19) with a concentrated outbreak poses a great challenge to medical treatment. The severe and critical patients are complex complicatied with the psychological problems, and the medical staff are overworked and under tremendous psychological pressure. The surgeon participated in emergency medical rescue could provide professional treatment for the patients combined with surgical diseases, as well as specialized training for the non-surgeon crew, to reduce surgical-related mortality. With the advantages of good team consciousness, strong aseptic concept and good psychological quality, the surgeons can quickly adapt to and carry out rescue work under the premise of good self-protection. Surgeons need to develop critical care management concepts and focus on the critical care support equipment. Some suggestions are put forward for the standardized training of resident surgeons to cultivate compound talents. It is hoped that this article can lead to the thinking of how to participate in the emergency medical rescue of infectious diseases among surgeons and provide some enlightenment for future surgical education.
Collapse
|
66
|
Shen N, Fan L. [Analysis of scoring system of twin pregnancy vaginal delivery]. ZHONGHUA FU CHAN KE ZA ZHI 2020; 55:312-316. [PMID: 32464718 DOI: 10.3760/cma.j.cn112141-20190916-00490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To Analyze the prenatal factors and forecast the success rate of vaginal delivery of twin pregnancy. Methods: Totally, 114 cases of twin pregnant women who were under the systematic antenatal care and had deliveries in Beijing Obstetrics and Gynecology Hospital from January 2017 to March 2019 were collected. The inclusive criteria were uncomplicated twin pregnancy with head downward position of the first fetus, not monochorioallantoic twin twins, and the willingness for vaginal delivery. Two groups were classified based on their successful vaginal delivery. 96 cases in vaginal delivery group (study group) and 18 cases in the comparison groupwhich were transferred to Caesarean sections during trial delivery. The evaluated prenatal factors included: (1) Fetal factors: the chorionicity of the twin pregnancy, position of the second fetus, fetal weights and the weight difference of two fetuses. (2) Maternal factors:the maternal age, delivery gestational age, parity, body mass index (BMI), reasonability of weight gain during pregnancy, pregnancy complications, such as gestational diabetes mellitus (GDM), hypertensive disorder of pregnancy, and the application of assisted reproductive technology. (3) The technical title of the delivery doctor, modes of labour (spontaneous labor or induced labour and its mode) and the application of labor analgesia, etc. Single-factor logistic analysis and multiple-factor logistic regression were used to do statistical analysis and nomograms were plotted, finally receiver operating characteristic (ROC) curves and standard curves were formed for internal verifications and Youden index were utilized to determine the cut-off values. Results: Five variables:maternal age,complicated GDM, reasonability of weight gain during pregnancy, parity, and the weight of the second fetus is less than the firsthad obvious influence on the success rate of vaginal delivery in twin pregnancy. After quantifying the influence weight, the influence of each factor was as follows:the age of the mother <35 years old: 64; no GDM: 100, no insulin application in GDM: 47, and application of insulin: 0; reasonability of weight gain during pregnancy: 82; parity≥2: 58; and the weight of the second fetus was less than the first: 57. The ROC curve was plotted and the area under the curve (AUC) is 0.856 1, which were able to forecast the success rates well, the maximum value of the Youden index was 0.564 7 and the corresponding score was 168. Conclusions: maternal age, reasonability of weight gain during pregnancy, the complication of GDM, parity, and the weight of the second fetus less than the first are the influential prenatal factors on vaginal delivery of twin pregnancy. After assigning the influence weight of each influencing factor, when the total score reaches 168 the success rate of vaginal delivery is significantly improved.
Collapse
|
67
|
Bastos A, Ciais P, Friedlingstein P, Sitch S, Pongratz J, Fan L, Wigneron JP, Weber U, Reichstein M, Fu Z, Anthoni P, Arneth A, Haverd V, Jain AK, Joetzjer E, Knauer J, Lienert S, Loughran T, McGuire PC, Tian H, Viovy N, Zaehle S. Direct and seasonal legacy effects of the 2018 heat wave and drought on European ecosystem productivity. SCIENCE ADVANCES 2020; 6:eaba2724. [PMID: 32577519 PMCID: PMC7286671 DOI: 10.1126/sciadv.aba2724] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 04/14/2020] [Indexed: 05/23/2023]
Abstract
In summer 2018, central and northern Europe were stricken by extreme drought and heat (DH2018). The DH2018 differed from previous events in being preceded by extreme spring warming and brightening, but moderate rainfall deficits, yet registering the fastest transition between wet winter conditions and extreme summer drought. Using 11 vegetation models, we show that spring conditions promoted increased vegetation growth, which, in turn, contributed to fast soil moisture depletion, amplifying the summer drought. We find regional asymmetries in summer ecosystem carbon fluxes: increased (reduced) sink in the northern (southern) areas affected by drought. These asymmetries can be explained by distinct legacy effects of spring growth and of water-use efficiency dynamics mediated by vegetation composition, rather than by distinct ecosystem responses to summer heat/drought. The asymmetries in carbon and water exchanges during spring and summer 2018 suggest that future land-management strategies could influence patterns of summer heat waves and droughts under long-term warming.
Collapse
|
68
|
Dong Y, Fan L, Liang J, Wang L, Yuan X, Wang Y, Zhao S. Risk assessment of mycotoxins in stored maize: case study of Shandong, China. WORLD MYCOTOXIN J 2020. [DOI: 10.3920/wmj2019.2449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Risk characterisation of dietary exposure of aflatoxins (AFs), fumonisins (FBs), deoxynivalenol (DON), zearalenone (ZEA) in maize from Shandong Province was conducted in this study. A total of 520 maize samples were collected after harvesting in 2014 and 2015 from 26 selected villages in Shandong Province, China. A deterministic approach was used in the current study. The dietary intake data of maize was obtained from ‘Shandong Statistical Yearbook 2018’. The risk characterisation of FBs, DON, and ZEA was evaluated in 4 population groups (2 to 6-year-old children, standard adults, city adults and village adults) based on probable intake. 2 to 6-year-old children and adults were exposed to FBs (0.42 and 0.20 μg/kg body weight (bw)/day), DON (0.04 and 0.019 μg/kg bw/day), and ZEA (0.0024 and 0.0011 μg/kg bw/day) through mean maize consumption in diets, which was lower than the provisional maximum tolerable daily intake of each mycotoxin established by JECFA. Risk assessments showed a low risk for liver cancer due to consumption of aflatoxin B1 (0.027-0.21 cases per 100,000 persons per year) contaminated maize compared with China’s current liver cancer incidence of 24.6 cases per 100,000 persons per year.
Collapse
|
69
|
Zhang J, Fan L, Li JY. [Research progress of treatment in Hodgkin lymphoma]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2020; 40:969-972. [PMID: 31856452 PMCID: PMC7342374 DOI: 10.3760/cma.j.issn.0253-2727.2019.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
70
|
Fan L, Xiong YP, Liu HT, Min X, Tang YQ, Zhang ZY. [Evaluation of the role of melatonin in the metastasis of papillary thyroid carcinoma]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2020; 33:1060-1064. [PMID: 31914295 DOI: 10.13201/j.issn.1001-1781.2019.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the level of melatonin and the role of melatonin in the metastasis of papillary thyroid carcinoma in patients with papillary thyroid carcinoma. Method:We measured serum melatonin levels in 81 patients with papillary thyroid carcinoma(PTC) ,20 patients with multinodular goiter(MNG) and 20 healthy adults using ELISA. The relationship between melatonin and clinicopathological features of PTC were analyzed.The expression of MT1 and MT2 in two subtypes of melatonin receptor in 81 cases of papillary thyroid carcinoma and adjacent tissues were detected by immunohistochemical SP method, and its the mean optical density(MOD) image was analyzed by Image Pro Plusversion(IPP) image processing software. Result:Serum melatonin concentration in patients with PTC was significantly higher than that in MNG patients and normal controls(P<0.05). The level of melatonin in the primary tumor T≥2 cm group was significantly higher than that in the T<2 cm group. Patients with positive cervical lymph nodes(N≥1) had significantly higher melatonin levels than lymph node negatives(N=0)(P<0.05). The MT1 and MT2 receptors were expressed in both PTC and paracancerous tissues, mainly in the cell membrane and cytoplasm. The expression of MT1 receptor was low in the two groups, and there was no statistical difference. The expression of MT2 receptor in PTC tissues Significantly higher than the adjacent tissues(P<0.05), further studies showed that the expression of MT2 receptor in PTC tissues was associated with cervical lymph node metastasis, and the expression of MT2 receptor in PTC tissues with cervical lymph node metastasis was significantly lower than that without metastasis (P<0.05). Conclusion:Serum melatonin levels in PTC patients were higher than those in MNG and control groups, which may be associated with low malignancy of PTC; melatonin inhibits PTC metastasis, which exerts anti-PTC metastasis mainly through MT2 receptors.
Collapse
|
71
|
Xu W, Chen T, Cai Y, Hu Y, Fan L, Wu C. Sarcopenia in Community-Dwelling Oldest Old Is Associated with Disability and Poor Physical Function. J Nutr Health Aging 2020; 24:339-345. [PMID: 32115617 DOI: 10.1007/s12603-020-1325-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Sarcopenia is an age-related geriatric syndrome and is associated with numerous adverse outcomes. Although there is preponderance of studies on sarcopenia in community setting, few studies focused on the oldest old. We investigated the prevalence of sarcopenia in Chinese community-dwelling oldest old and examined the socio-demographic and lifestyle factors of sarcopenia. We also investigated the association between sarcopenia and disability in activities of daily living (ADL) and physical function among the oldest old. DESIGN Cross-sectional study. SETTING Urban community in Beijing, China. PARTICIPANTS 664 community-dwelling older adults aged 80 years or older. METHODS The presence of sarcopenia and the relationship between sarcopenia and physical function and disability were examined in 582 adults aged 80 years and older. we used the backward stepwise logistic regression model to explore socio-demographic and lifestyle correlates of sarcopenia. Sarcopenia was assessed by an algorithm recommended by the Asian Working Group for Sarcopenia (AWGS). RESULTS The overall prevalence of sarcopenia was 26.6% (female 21.7%; male 33.3%). Age (odds ratio [OR] = 1.14, 95% confidence interval [CI]: 1.06 - 1.22), body mass index (OR = 0.80, 95% CI: 0.73 - 0.89), and Mini-nutritional assessment (MNA) scores (OR = 0.78, 95% CI: 0.64 - 0.96) were independently associated with sarcopenia. The Odds of disability in ADL was approximately two times greater in oldest old with sarcopenia than those without. Sarcopenia was associated with poor lower extremity strength. Oldest old with sarcopenia have higher odds to reported difficulty in stooping, kneeing, or crouching, carrying weights over 5 kilograms, and walking 400 meters. CONCLUSION AND IMPLICATIONS We found over a quartile of the community-dwelling oldest old in China had sarcopenia. Older age, lower BMI, and worse nutritional status were significantly associated with the presence of sarcopenia. Sarcopenia was independently associated with disability and poor physical function.
Collapse
|
72
|
Wang Z, Li Y, Fan L, Zhao Q, Tan B, Liu R, Li F. Silencing of TPD52 inhibits proliferation, migration, invasion but induces apoptosis of pancreatic cancer cells by deactivating Akt pathway. Neoplasma 2019; 67:277-285. [PMID: 31847526 DOI: 10.4149/neo_2019_190404n295] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 07/02/2019] [Indexed: 11/08/2022]
Abstract
Pancreatic cancer (PC) is a complex and multifactorial human malignancy with a low survival rate. Tumor protein D52 (TPD52) was abnormally expressed in several cancers and participated in tumorigenesis. However, the oncogenic effect of TPD52 on PC remains unknown. In the present study, after transfecting AsPC-1 and PANC-1 cells with NC or sh-TPD52, the CCK-8 assay, Hoechst staining, western blot, transwell assay, flow cytometry were used to examine the cell proliferation, migration, invasion and apoptosis. qRT-PCR results confirmed that the expression of TPD52 was significantly increased in PC cells, especially AsPC-1 and PANC-1 cells. The present study revealed that silencing of TPD52 significantly suppressed the proliferation, migration and invasion, but induced apoptosis of AsPC-1 and PANC-1 cells in vitro by dephosphorylating Akt at Ser473. Conversely, SC79, an Akt activator, could partially reverse the anti-metastatic effects of sh-TPD52, accompanied by the reactivating of Akt pathway. Additional in vivo studies are warranted to elucidate that knockdown of TPD52 could inhibit tumor growth in PC mice models. These findings suggested that TPD52 might be a novel therapeutic target for PC treatment.
Collapse
|
73
|
Fan L, He ZZ, Ao X, Sun WL, Xiao X, Zeng FK, Wang YC, He J. Effects of residual superdoses of phytase on growth performance, tibia mineralization, and relative organ weight in ducks fed phosphorus-deficient diets. Poult Sci 2019; 98:3926-3936. [PMID: 30938806 DOI: 10.3382/ps/pez114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 02/26/2019] [Indexed: 11/20/2022] Open
Abstract
This study was conducted to determine the effects of residual superdoses of phytase on growth performance, tibia mineralization, and relative organ weight in ducks fed phosphorus-deficient diets. In Exp. 1, 4 kinds of commercial phytase were used to determine retention rate of phyatse with the phytase C being the highest via both high water-bath temperature (90%) and pelleting (50%), followed by phytase A, B, and D. In Exp. 2, a total of 560 male ducks were blocked based on body weight, and then allocated randomly to 7 treatments (5 replicates with 16 birds per replicate). Treatments included a maize-soybean meal-based diet with recommended calcium and 4.0 g non-phytate phosphorus (nPP)/kg starter diet or 3.8 g nPP/kg grower diet (positive control; PC), an nPP-deficient diet with 1.3 g nPP/kg starter diet or 1.1 g nPP/kg grower diet (negative control; NC), NC diets with increasing levels of residual phytase C (500, 1,000, 2,000, 3,000, and 4,000 units/kg feed) after pelleting. Birds fed NC diets had lower (P < 0.05) average daily gain (ADG) and average daily feed intake (ADFI) throughout the experiment compared with those fed PC diet. Supplementing NC diet with increasing residual superdoses of phytase improved (P < 0.05) ADG and ADFI quadratically in the entire experiment, while reduced feed-to-gain ratio (P < 0.05) quadratically during day 0 to 14. On day 14 and 35, birds fed NC diet had lower (P < 0.05) tibia length, weight, ash, calcium, phosphorus, and manganese contents than those fed PC diet. Increasing residual superdoses of phytase in NC diet increased (P < 0.05) tibia weight and ash, calcium, phosphorus contents quadratically on day 14 and 35. NC treatment increased (P < 0.05) the duodenum, jejunum, ileum, and cecum index compared with other treatments on day 14 and 35. Taken together, feeding increasing residual superdoses of phytase could counteract or exceed the negative effects of NC diet on growth performance, tibia mineralization, and relative organ weight in ducks.
Collapse
|
74
|
He CC, Hamlow LA, Zhu Y, Nei YW, Fan L, McNary CP, Maître P, Steinmetz V, Schindler B, Compagnon I, Armentrout PB, Rodgers MT. Structural and Energetic Effects of O2'-Ribose Methylation of Protonated Pyrimidine Nucleosides. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:2318-2334. [PMID: 31435890 DOI: 10.1007/s13361-019-02300-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/18/2019] [Accepted: 07/23/2019] [Indexed: 06/10/2023]
Abstract
The 2'-substituents distinguish DNA from RNA nucleosides. 2'-O-methylation occurs naturally in RNA and plays important roles in biological processes. Such 2'-modifications may alter the hydrogen-bonding interactions of the nucleoside and thus may affect the conformations of the nucleoside in an RNA chain. Structures of the protonated 2'-O-methylated pyrimidine nucleosides were examined by infrared multiple photon dissociation (IRMPD) action spectroscopy, assisted by electronic structure calculations. The glycosidic bond stabilities of the protonated 2'-O-methylated pyrimidine nucleosides, [Nuom+H]+, were also examined and compared to their DNA and RNA nucleoside analogues via energy-resolved collision-induced dissociation (ER-CID). The preferred sites of protonation of the 2'-O-methylated pyrimidine nucleosides parallel their canonical DNA and RNA nucleoside analogues, [dNuo+H]+ and [Nuo+H]+, yet their nucleobase orientation and sugar puckering differ. The glycosidic bond stabilities of the protonated pyrimidine nucleosides follow the order: [dNuo+H]+ < [Nuo+H]+ < [Nuom+H]+. The slightly altered structures help explain the stabilization induced by 2'-O-methylation of the pyrimidine nucleosides.
Collapse
|
75
|
Li X, Fan L, Zhu M, Jiang H, Bai W, Kang J. Combined intervention of 17β-estradiol and treadmill training ameliorates energy metabolism in skeletal muscle of female ovariectomized mice. Climacteric 2019; 23:192-200. [DOI: 10.1080/13697137.2019.1660639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|