94 results on '"M. Maimaiti"'
Search Results
2. Investigation of a rare event where the polar ionospheric reverse convection potential does not saturate during a period of extreme northward IMF solar wind driving
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C. Robert Clauer, Zhonghua Xu, M. Maimaiti, J. Michael Ruohoneimi, Wayne Scales, Michael D. Hartinger, Michael J. Nicolls, Stephen Kaeppler, Frederick D. Wilder, and Ramon E. Lopez
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- 2016
- Full Text
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3. A Deep Learning‐Based Approach to Forecast the Onset of Magnetic Substorms
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J. M. Ruohoniemi, M. Maimaiti, J. B. H. Baker, Bharat S. R. Kunduri, and Leanna House
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Atmospheric Science ,business.industry ,Computer science ,Deep learning ,Substorm ,Artificial intelligence ,Machine learning ,computer.software_genre ,business ,computer - Published
- 2019
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4. SAPS in the 17 March 2013 Storm Event: Initial Results From the Coupled Magnetosphere‐Ionosphere‐Thermosphere Model
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X. Shi, Wayne Scales, Viacheslav Merkin, Binzheng Zhang, M. Maimaiti, Bharat S. R. Kunduri, Dong Lin, Jing Liu, Wenbin Wang, and Kevin Pham
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Physics ,Geophysics ,Meteorology ,Space and Planetary Science ,Event (relativity) ,Magnetosphere ,Storm ,Ionosphere ,Thermosphere - Published
- 2019
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5. Morphology of Nightside Subauroral Ionospheric Convection: Monthly, Seasonal, Kp, and IMF Dependencies
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J. B. H. Baker, M. Maimaiti, Bharat S. R. Kunduri, and J. M. Ruohoniemi
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Geophysics ,Morphology (linguistics) ,Space and Planetary Science ,Ionospheric convection ,Atmospheric sciences ,Geology - Published
- 2019
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6. A Deep Learning‐Based Approach for Modeling the Dynamics of AMPERE Birkeland Currents
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J. B. H. Baker, Sarah K. Vines, M. Maimaiti, Brian J. Anderson, J. M. Ruohoniemi, and Bharat S. R. Kunduri
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Geophysics ,Space and Planetary Science ,business.industry ,Dynamics (music) ,Deep learning ,Artificial intelligence ,Aerospace engineering ,business ,Ampere ,Geology - Published
- 2020
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7. Recent Developments in Our Knowledge of Inner Magnetosphere‐Ionosphere Convection
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Stanislav Sazykin, Kjellmar Oksavik, J. B. H. Baker, Bharat S. R. Kunduri, Mark J. Engebretson, Peter Chi, J. M. Ruohoniemi, and M. Maimaiti
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Physics ,Convection ,Geophysics ,010504 meteorology & atmospheric sciences ,Space and Planetary Science ,Electric field ,0103 physical sciences ,Magnetosphere ,Ionosphere ,010303 astronomy & astrophysics ,01 natural sciences ,0105 earth and related environmental sciences - Published
- 2018
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8. Dual E × B flow responses in the dayside ionosphere to a sudden IMF By rotation
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Stefan Eriksson, Frederick Wilder, M. Maimaiti, K. J. Trattner, Delores J. Knipp, and J. B. H. Baker
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Physics ,Time delays ,010504 meteorology & atmospheric sciences ,Flux ,Geophysics ,Rotation ,01 natural sciences ,Magnetosheath ,0103 physical sciences ,General Earth and Planetary Sciences ,Magnetopause ,Ionosphere ,Interplanetary magnetic field ,010303 astronomy & astrophysics ,0105 earth and related environmental sciences ,Plasma density - Abstract
We report for the first time a dual transition state in the dayside ionosphere following a sudden rotation of the interplanetary magnetic field (IMF) in the upstream magnetosheath from IMF By 0 during Bz
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- 2017
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9. RISR‐N observations of the IMF B y influence on reverse convection during extreme northward IMF
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J. M. Ruohoniemi, Marc R. Hairston, J. B. H. Baker, Michael J. Nicolls, M. Maimaiti, and C. R. Clauer
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Convection ,Physics ,010504 meteorology & atmospheric sciences ,Flow (psychology) ,Incoherent scatter ,Magnitude (mathematics) ,Magnetic reconnection ,Geophysics ,Noon ,01 natural sciences ,010305 fluids & plasmas ,Space and Planetary Science ,Physics::Space Physics ,0103 physical sciences ,Magnetopause ,Interplanetary magnetic field ,Physics::Atmospheric and Oceanic Physics ,0105 earth and related environmental sciences - Abstract
Previous studies have demonstrated that the high-latitude ionospheric convection is strongly influenced by the interplanetary magnetic field (IMF) direction. However, the temporal details of how the convection transitions from one state to another is still not understood completely. In this study, we analyze an interval on September 12, 2014 which provided a rare opportunity to examine dynamic variations in the dayside convection throat as the IMF transitioned from strong By+ to strong Bz+. Between 18:00 - 20:00 UT the northward face of the Resolute Bay Incoherent Scatter Radar (RISR-N) rotated through the noon sector and directly measured strengthening reverse convection flows in the dayside throat region that peaked at ∼2800m/s. Near-simultaneous measurements from DMSP satellites confirm the magnitude of the reverse convection and its proximity to the cusp. Time-series comparison of the RISR-N north-south flows with the IMF Bz component shows a remarkably high correlation, suggestive of strong linear coupling, with no sign of velocity saturation. Likewise, the east-west flow variations were highly correlated with the changes in IMF By. However, time-lagged correlation analysis reveals that the IMF By influence acted on a time-scale 10 minutes shorter than that of the Bz component. As a consequence, the manner in which the convection transitioned from the strong By+ condition to the strong Bz+ condition is inconsistent with either the anti-parallel and component reconnection models. Instead, we suggest that these particular observations are consistent with two separate reconnection sites on the magnetopause driven independently by the IMF By and Bz components.
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- 2017
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10. Investigation of a rare event where the polar ionospheric reverse convection potential does not saturate during a period of extreme northward IMF solar wind driving
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S. R. Kaeppler, Wayne Scales, M. Maimaiti, C. Robert Clauer, J. Michael Ruohoneimi, Frederick Wilder, Ramon Lopez, Michael Hartinger, Michael J. Nicolls, and Zhonghua Xu
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Convection ,010504 meteorology & atmospheric sciences ,Geophysics ,Atmospheric sciences ,01 natural sciences ,Solar wind ,Space and Planetary Science ,0103 physical sciences ,Period (geology) ,Polar ,Ionosphere ,010303 astronomy & astrophysics ,Event (particle physics) ,Geology ,0105 earth and related environmental sciences - Published
- 2016
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11. Statistical Study of Nightside Quiet Time Midlatitude Ionospheric Convection
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J. B. H. Baker, J. M. Ruohoniemi, A. J. Ribeiro, and M. Maimaiti
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Geophysics ,010504 meteorology & atmospheric sciences ,Space and Planetary Science ,Ionospheric convection ,QUIET ,Middle latitudes ,0103 physical sciences ,010303 astronomy & astrophysics ,01 natural sciences ,Geology ,0105 earth and related environmental sciences - Published
- 2018
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12. Development of a Bioassay System for Human Growth Hormone Determination with Close Correlation to Immunoassay
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K. Fujieda, Yusuke Tanahashi, M. Maimaiti, and Z. Mohri
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Microbiology (medical) ,Detection limit ,Immunoradiometric assay ,medicine.medical_specialty ,medicine.diagnostic_test ,biology ,Cell growth ,Biochemistry (medical) ,Clinical Biochemistry ,Public Health, Environmental and Occupational Health ,Hematology ,Molecular biology ,Medical Laboratory Technology ,Endocrinology ,Cell culture ,Immunoassay ,Internal medicine ,medicine ,biology.protein ,Immunology and Allergy ,Endocrine system ,Bioassay ,Antibody - Abstract
Serum growth hormone (GH) level is measured largely through immunoassays in clinical practice. However, a few cases with bioinactive and immunoreactive GH have also been reported. We describe here a new bioassay system for GH determination using the BaF/GM cell line, which proliferates in a dose-dependent manner on hGH addition; cell proliferation was blocked by anti-hGH antibody. This bioassay had the lowest detection limit (∼0.02 ng/ml) reported thus far and the highest specificity for GH. The bioassay results were compared with those of an immunoradiometric assay across 163 patient samples in various endocrine states. A close correlation (the ratio of bioactivity/immunoreactivity was 1.04 ± 0.33, mean ± SD) was observed between bioactivity and immunoreactivity in these samples. The newly developed system is a specific, sensitive, easy, and fast bioassay system for GH determination; we consider it useful for evaluating GH bioactivity in various endocrine states.
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- 2012
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13. Synergistic effects of arsenic trioxide combined with ascorbic acid in human osteosarcoma MG-63 cells: a systems biology analysis
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X C, Huang, X Y M, Maimaiti, C W, Huang, L, Zhang, Z B, Li, Z G, Chen, X, Gao, and T Y, Chen
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Osteosarcoma ,Arsenic Trioxide ,Cell Line, Tumor ,Systems Biology ,Humans ,Antineoplastic Agents ,Apoptosis ,Bone Neoplasms ,Drug Synergism ,Drug Therapy, Combination ,Oxides ,Ascorbic Acid ,Arsenicals - Abstract
To further understand the synergistic mechanism of As2O3 and asscorbic acid (AA) in human osteosarcoma MG-63 cells by systems biology analysis.Human osteosarcoma MG-63 cells were treated by As2O3 (1 µmol/L), AA (62.5 µmol/L) and combined drugs (1 µmol/L As2O3 plus 62.5 µmol/L AA). Dynamic morphological characteristics were recorded by Cell-IQ system, and growth rate was calculated. Illumina beadchip assay was used to analyze the differential expression genes in different groups. Synergic effects on differential expression genes (DEGs) were analyzed by mixture linear model and singular value decomposition model. KEGG pathway annotations and GO enrichment analysis were performed to figure out the pathways involved in the synergic effects.We captured 1987 differential expression genes in combined therapy MG-63 cells. FAT1 gene was significantly upregulated in all three groups, which is a promising drug target as an important tumor suppressor analogue; meanwhile, HIST1H2BD gene was markedly downregulated in the As2O3 monotherapy group and the combined therapy group, which was found to be upregulated in prostatic cancer. These two genes might play critical roles in synergetic effects of AA and As2O3, although the exact mechanism needs further investigation. KEGG pathway analysis showed many DEGs were related with tight junction, and GO analysis also indicated that DEGs in the combined therapy cells gathered in occluding junction, apical junction complex, cell junction, and tight junction.AA potentiates the efficacy of As2O3 in MG-63 cells. Systems biology analysis showed the synergic effect on the DEGs.
- Published
- 2015
14. Wraparound S-band and GPS antenna arrays for sounding rocket sub-payload
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M. Maimaiti and Reyhan Baktur
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Reconfigurable antenna ,Directional antenna ,business.industry ,Computer science ,Acoustics ,Conformal antenna ,Antenna measurement ,Astrophysics::Instrumentation and Methods for Astrophysics ,Random wire antenna ,Slot antenna ,Antenna efficiency ,law.invention ,Computer Science::Robotics ,Optics ,law ,business ,Omnidirectional antenna ,Computer Science::Information Theory - Abstract
The objective of this study is to determine a reliable and relatively simple antenna solution for a sounding rocket sub-payload. The sub-payload is a cylinder with a diameter of 6 inches and a height of 4 inches. The communication system requires S band and GPS antennas. In order to enable the payload to spin stably after launching, it is desirable to have both antennas conformal to the payload surface. Both antennas are required to provide a smooth omni-directional pattern, and therefore creating challenges as one needs multiple antennas to achieve the requirement on the limited payload surface area. Another challenge is to create a reliable circular polarized antenna that will be used as GPS antenna on the cylindrical surface.
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- 2013
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15. A FULLY AUTOMATED AND FAST APPROACH FOR CANOPY COVER ESTIMATION USING SUPER HIGH-RESOLUTION REMOTE SENSING IMAGERY
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M. Maimaitijiang, V. Sagan, S. Bhadra, C. Nguyen, T. C. Mockler, and N. Shakoor
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Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Applied optics. Photonics ,TA1501-1820 - Abstract
Canopy cover is a key agronomic variable for understanding plant growth and crop development status. Estimation of canopy cover rapidly and accurately through a fully automated manner is significant with respect to high throughput plant phenotyping. In this work, we propose a simple, robust and fully automated approach, namely a rule-based method, that leverages the unique spectral pattern of green vegetation at visible (VIS) and near-infrared red (NIR) spectra regions to distinguish the green vegetation from background (i.e., soil, plant residue, non-photosynthetic vegetation leaves etc.), and then derive canopy cover. The proposed method was applied to high-resolution hyperspectral and multispectral imagery collected from gantry-based scanner and Unmanned Aerial Vehicle (UAV) platforms to estimate canopy cover. Additionally, machine learning methods, i.e., Support Vector Machine (SVM) and Random Forest (RF) were also employed as bench mark methods. The results show that: the rule-based method demonstrated promising classification accuracies that are comparable to SVM and RF for both hyperspectral and multispectral datasets. Although the rule-based method is more sensitive to mixed pixels and shaded canopy region, which potentially resulted in classification errors and underestimation of canopy cover in some cases; it showed better performance to detect smaller leaves than SVM and RF. Most importantly, the rule-based method substantially outperformed machine learning methods with respect to processing speed, indicating its greater potential for high-throughput plant phenotyping applications.
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- 2021
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16. Partial paternal uniparental disomy of chromosome 6 in monozygotic twins with transient neonatal diabetes mellitus and macroglossia
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Y Tanahashi, Shigeru Suzuki, T Asano, Kumihiro Matsuo, D Fujisawa, K Hashimoto, Kenji Fujieda, Tokuo Mukai, and M Maimaiti
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Genetics ,Monosomy ,Infant, Newborn ,Monozygotic twin ,Locus (genetics) ,Karyotype ,Twins, Monozygotic ,Biology ,Uniparental Disomy ,medicine.disease ,Uniparental disomy ,Diabetes mellitus genetics ,Transient neonatal diabetes mellitus ,Macroglossia ,medicine ,Diabetes Mellitus ,Diseases in Twins ,Humans ,Chromosomes, Human, Pair 6 ,Female ,medicine.symptom ,Genetics (clinical) - Abstract
Transient neonatal diabetes mellitus (TNDM) usually develops within the first few weeks of life and resolves at a median age of 3 months. In most of the cases, TNDM is caused by the over-expression of a paternally expressed imprinted PLAGL1 locus on chromosome 6q24. The most frequent manifestation other than TNDM is intrauterine growth retardation (IUGR), and in some cases macroglossia. We investigated monozygotic twins who had macroglossia without IUGR. Both of the twins developed insulin-dependent hyperglycemia within the first week of life, which subsequently resolved. DNA profiling with polymerase chain reaction amplification was performed for polymorphic microsatellite markers of chromosome 6. The six informative markers, located between 6p24 and 6q15, showed normal biparental inheritance. However, the six distal informative markers, located between 6q23.2 and the 6q telomeric region, showed the absence of a maternal allele and the presence of a single paternal allele. The monosomy of the 6q telomeric region was not confirmed by chromosome banding showing 46, XX. These findings provide further evidence that partial paternal uniparental disomy of chromosome 6 (pUPD6) causes TNDM. The phenotypes other than diabetes observed in patients with partial pUPD6 may differ from those observed in patients with complete pUPD6.
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- 2010
17. UAV-BASED SORGHUM GROWTH MONITORING: A COMPARATIVE ANALYSIS OF LIDAR AND PHOTOGRAMMETRY
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M. Maimaitijiang, V. Sagan, H. Erkbol, J. Adrian, M. Newcomb, D. LeBauer, D. Pauli, N. Shakoor, and T. C. Mockler
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Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Applied optics. Photonics ,TA1501-1820 - Abstract
Canopy height (CH) and leaf area index (LAI) provide key information about crop growth and productivity. A rapid and accurate retrieval of CH and LAI is critical for a variety of agricultural applications. LiDAR and RGB photogrammetry have been increasingly used in plant phenotyping in recent years thanks to the developments in Unmanned Aerial Vehicle (UAV) and sensor technology. The goal of this study is to investigate the potential of UAV LiDAR and RGB photogrammetry in estimating crop CH and LAI. To this end, a high resolution 32 channel LiDAR and RGB cameras mounted on DJI Matrice 600 Pro UAV were employed to collect data at sorghum fields near Maricopa, Arizona, USA. A series of canopy structure metrics were extracted using LiDAR and RGB photogrammetry-based point clouds. Random Forest Regression (RFR) models were established based on the UAV-LiDAR and photogrammetry-derived metrics and field-measured LAI. The results show that both UAV-LiDAR and RGB photogrammetry demonstrated promising accuracies in CH extraction and LAI estimation. Overall, UAV-LiDAR yielded superior performance than RGB photogrammetry in both low and high canopy density sorghum fields. In addition, Pearson’s correlation coefficient, as well as RFR-based variable importance analysis demonstrated that height-based metrics from both LiDAR and photogrammetric point clouds were more useful than density-based metrics in LAI estimation. This study proved that UAV-based LiDAR and photogrammetry are important tool in sustainable field management and high-throughput phenotyping, but LiDAR is more accurate than RGB photogrammetry due to its greater canopy penetration capability.
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- 2020
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18. UAV/SATELLITE MULTISCALE DATA FUSION FOR CROP MONITORING AND EARLY STRESS DETECTION
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V. Sagan, M. Maimaitijiang, P. Sidike, M. Maimaitiyiming, H. Erkbol, S. Hartling, K. T. Peterson, J. Peterson, J. Burken, and F. Fritschi
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Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Applied optics. Photonics ,TA1501-1820 - Abstract
Early stress detection is critical for proactive field management and terminal yield prediction, and can aid policy making for improved food security in the context of climate change and population growth. Field surveys for crop monitoring are destructive, labor-intensive, time-consuming and not ideal for large-scale spatial and temporal monitoring. Recent technological advances in Unmanned Aerial Vehicle (UAV) and high-resolution satellite imaging with frequent revisit time have proliferated the applications of this emerging new technology in precision agriculture to address food security challenges from regional to global scales. In this paper, we present a concept of UAV and satellite virtual constellation to demonstrate the power of multi-scale imaging for crop monitoring. Low-cost sensors integrated on a UAV were used to collect RGB, multispectral, and thermal images during the growing season in a test site established near Columbia, Missouri, USA. WorldView-3 multispectral data were pan-sharpened, atmospherically corrected to reflectance and combined with UAV data for temporal monitoring of early stress. UAV thermal and multispectral data were calibrated to canopy temperature and reflectance following a rigorous georeferencing and ortho-correction. The results show that early stress can be effectively detected using multi-temporal and multi-scale UAV and satellite observation; the limitations of satellite remote sensing data in field-level crop monitoring can be overcome by using low altitude UAV observations addressing not just mixed pixel issues but also filling the temporal gap in satellite data availability enabling capture of early stress. The concept developed in this paper also provides a framework for accurate and robust estimation of plant traits and grain yield and delivers valuable insight for high spatial precision in high-throughput phenotyping and farm field management.
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- 2019
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19. Extraction and immunomodulatory effects of acid Lagenaria siceraria (Molina) Standl. Polysaccharide on chickens.
- Author
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Zhou E, Abula S, Abulizi A, He G, Huang P, Maimaiti M, Liu D, Mai Z, Dong S, and Wusiman A
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- Animals, Influenza A Virus, H9N2 Subtype drug effects, Cucurbitaceae chemistry, Influenza Vaccines immunology, Influenza Vaccines administration & dosage, Poultry Diseases immunology, Poultry Diseases prevention & control, Animal Feed analysis, Immunomodulating Agents pharmacology, Immunomodulating Agents chemistry, Plant Extracts pharmacology, Plant Extracts chemistry, Chickens immunology, Polysaccharides pharmacology, Polysaccharides chemistry, Adjuvants, Immunologic pharmacology
- Abstract
Herbal polysaccharides are extensively studied as vaccine adjuvants due to their safety and potent immunoenhancing activity. This study aimed to analyze the structure of Lagenaria siceraria (Molina) Standl polysaccharide (LSP50) and investigate its adjuvant activity for the H9N2 vaccine in broiler chickens. Structural analysis revealed that LSP50 primarily consisted of rhamnose, arabinose, xylose, mannose, glucose, and galactose with molar ratios of 23.12: 12.28: 10.87: 8.26: 2.64: 22.82 respectively. The adjuvant activity of LSP50 was evaluated, which showing significant enhancements compared to the H9N2 group. Parameters including the immune organ index, H9N2 specific IgG level, cytokines contents (IFN-γ, IL-2, IL-4, and IL-5), and the proportion of CD3e
+ CD8aT+ cells were significantly increased in the LSP50 group (P < 0.05). Additionally, sequencing results showed that LSP50 modulates the immune response by regulating PLA2G12B and PTGDS genes involved in the arachidonic acid pathway. These findings were further validated through qPCR analysis to affirm the reliability of the sequencing data. In conclusion, our results demonstrate that LSP50 exhibits potent adjuvant activity, enhancing both cellular and humoral immunity., Competing Interests: DISCLOSURES The authors declare no conflicts of interest., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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20. Population-based prevalence of self-reported pediatric diabetes and screening for undiagnosed type 2 diabetes in Chinese children in years 2017-2019, a cross-sectional study.
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Wu W, Zhang JW, Li Y, Huang K, Chen RM, Maimaiti M, Luo JS, Chen SK, Wu D, Zhu M, Wang CL, Su Z, Liang Y, Yao H, Wei HY, Zheng RX, Du HW, Luo FH, Li P, Wang E, Polychronakos C, and Fu JF
- Abstract
Background: The worldwide geographical and temporal variation in the prevalence of diabetes represents a challenge, but also an opportunity for gaining etiological insights. Encompassing the bulk of East Asians, a large and distinct proportion of the world population, China can be a source of valuable epidemiological insights for diabetes, especially in early life, when pathophysiology begins. We carried out a nationwide, epidemiological survey of Prevalence and Risk of Obesity and Diabetes in Youth (PRODY) in China, from 2017 to 2019, to estimate the population-based prevalence of diagnosed pediatric diabetes and screen for undiagnosed pediatric type 2 diabetes (T2D)., Methods: PRODY was a nation-wide, school population-based, cross-sectional, multicenter survey by questionnaire, fasting urine glucose test and simple oral glucose tolerance test (s-OGTT), among a total number of 193,801 general-population children and adolescents (covered a pediatric population of more than 96.8 million), aged 3-18, from twelve provinces across China. The prevalence of the self-reported pediatric diabetes, the proportion of subtypes, the crude prevalence of undiagnosed T2D and prediabetes in general juvenile population and the main risk factors of type 1 (T1D) and type 2 (T2D) diabetes had been analyzed in the study., Findings: The prevalence of all self-reported pediatric diabetes was estimated at 0.62/1000 (95% CI: 0.51-0.74), with T1D at 0.44/1000 (95% CI: 0.35-0.54) and T2D at 0.18/1000 (95% CI: 0.13-0.25). For undiagnosed T2D, the crude prevalence was almost ten-fold higher, at 1.59/1000, with an estimated extra 28.45/1000 of undiagnosed impaired glucose tolerance (IGT) and 53.74/1000 of undiagnosed impaired fasting glucose (IFG) by s-OGTT screening. Maternal diabetes history is the major risk factors for all subtypes of pediatric diabetes in China., Interpretation: The PRODY study provides the first population-based estimate of the prevalence of pediatric diabetes China and reveals a magnitude of the problem of undiagnosed pediatric T2D. We propose a practical screening strategy by s-OGTT to address this serious gap., Funding: The National Key Research and Development Programme of China, Key R&D Program of Zhejiang, the National Natural Science Foundation of China and the Zhejiang Provincial Key Disciplines of Medicine, Key R&D Program Projects in Zhejiang Province., Competing Interests: The authors have no conflict of interest to disclose., (© 2024 The Authors.)
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- 2024
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21. An abnormal metabolism-related gene, ALG3, is a potential diagnostic and prognostic biomarker for lung adenocarcinoma.
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Reyimu A, Cheng X, Liu W, Kaisaier A, Wang X, Sha Y, Guo R, Paerhati P, Maimaiti M, He C, Li L, Zou X, and Xu A
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- Humans, Prognosis, Male, Nomograms, Female, Gene Expression Regulation, Neoplastic, Kaplan-Meier Estimate, Middle Aged, Transcriptome, ROC Curve, Biomarkers, Tumor genetics, Biomarkers, Tumor metabolism, Adenocarcinoma of Lung genetics, Adenocarcinoma of Lung mortality, Adenocarcinoma of Lung metabolism, Lung Neoplasms genetics, Lung Neoplasms mortality, Lung Neoplasms metabolism, Lung Neoplasms diagnosis
- Abstract
Background: To explore the abnormal metabolism-related genes that affect the prognosis of patients with lung adenocarcinoma (LUAD), and analyze the relationship with immune infiltration and competing endogenous RNA (ceRNA) network., Methods: Transcriptome data of LUAD were downloaded from the Cancer Genome Atlas database. Abnormal metabolism-related differentially expressed genes in LUAD were screened by the R language. Cox analysis was used to construct LUAD prognostic risk model. Kaplan-Meier test, ROC curve and nomograms were used to evaluate the predictive ability of metabolic related gene prognostic model. CIBERSORT algorithm was used to analyze the relationship between risk score and immune infiltration. The starBase database constructed a regulatory network consistent with the ceRNA hypothesis. IHC experiments were performed to verify the differential expression of ALG3 in LUAD and paracancerous samples., Results: In this study, 42 abnormal metabolism-related differential genes were screened. After survival analysis, the final 5 metabolism-related genes were used as the construction of prognosis model, including ALG3, COL7A1, KL, MST1, and SLC52A1. In the model, the survival rate of LUAD patients in the high-risk subgroup was lower than that in the low-risk group. In addition, the risk score of the constructed LUAD prognostic model can be used as an independent prognostic factor for patients. According to the analysis of CIBERSORT algorithm, the risk score is related to the infiltration of multiple immune cells. The potential ceRNA network of model genes in LUAD was constructed through the starBase database. IHC experiments revealed that ALG3 expression was upregulated in LUAD., Conclusion: The prognostic model of LUAD reveals the relationship between metabolism and prognosis of LUAD, and provides a novel perspective for diagnosis and research of LUAD., (Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.)
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- 2024
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22. Up-conversion luminescence and temperature sensing properties of Ho 3+ -, Tm 3+ -, and Yb 3+ -codoped Bi 2 WO 6 materials in a water environment.
- Author
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Feng X, Wang L, Maimaiti M, Jiang M, and Zhang Y
- Abstract
A series of x%Ho
3+ , 5 %Tm3+ , y%Yb3+ :Bi2 WO6 (x = 0, 0.5, 1, 3, 5; y = 0.5, 1, 3) luminescent materials was prepared using a high-temperature solid-phase method. The microstructure, up-conversion luminescence, and temperature sensing properties of the synthesized powders were analyzed. X-ray diffraction patterns revealed that doping with Ho3+ , Tm3+ , and Yb3+ ions at certain concentrations did not affect the orthorhombic crystal structure of the Bi2 WO6 host. Scanning electron microscopy revealed that the morphology of the sample consisted of lumpy particles with a particle size range of 1-5 µm and agglomeration. SEM mapping and energy-dispersive X-ray spectroscopy analyses revealed that each element was relatively uniformly distributed on the particle surface. Under 980 nm excitation (380 mW), the strongest luminescence of the sample was obtained when both Ho3+ and Yb3+ doping concentrations were 1 %. Compared with the luminescence of the 5 %Tm3+ and 1 %Yb3+ :Bi2 WO6 sample, with increasing Ho3+ concentrations, the luminescence intensity of Tm3+ was first enhanced and subsequently weakened, whereas the luminescence of Ho3+ was significantly weakened, which indicates the positive energy transfer from Ho3+ → Tm3+ . At 980 nm (80-380 mW), for the 1 %Ho3+ , 5 %Tm3+ , and 1 %Yb3+ :Bi2 WO6 sample, the 538 nm, 545 nm, 660 nm, and 804 nm emission peaks originated from the two-photon absorption. FIR660 nm/804 nm , FIR545 nm/804 nm , and FIR538 nm/804 nm were used to characterize the temperature and corresponded to temperature sensitivities Sr of 0.0046 K-1 , 0.022 K-1 and 0.024 K-1 at 573 K, respectively. At 498 K, the minimum temperature resolution δT values were 0.03384 K, 0.03203 K and 0.04373 K. When the temperature increased from 298 K to 573 K, the powder sample luminescence gradually shifted from the yellow-green region to the red region. The results of environmental discoloration and thermochromic performance tests indicate that this sample has potential application in optical anti-counterfeiting. FIR804 nm /660 nm and FIR804 nm /538 nm were obtained for the 40 NTU turbidity suspension under identical excitation conditions. At 298 K, for the 40 NTU turbidity sample, the maximum Sr values were 0.0197 K-1 and 0.0405 K-1 ; at 340 K, the minimum temperature resolutions δT values were 0.54037 K and 0.66237 K. When the temperature decreased from 340 K to 298 K, the luminescence of the 40 NTU suspension samples gradually shifted from the yellow region to the green region., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2025
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23. Uric acid and risk of gestational diabetes mellitus: an observational study and mendelian randomization analysis.
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Xilifu N, Zhang R, Dai Y, Maimaiti M, Li Z, Yang J, Zang S, and Liu J
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- Humans, Pregnancy, Female, Case-Control Studies, Adult, Risk Factors, Diabetes, Gestational blood, Diabetes, Gestational genetics, Diabetes, Gestational epidemiology, Uric Acid blood, Mendelian Randomization Analysis
- Abstract
Objective: Our aim was to explore the relationship between serum uric acid (UA) levels in early pregnancy and the development of gestational diabetes mellitus (GDM), and to further explore whether there is a causal relationship., Methods: 684 pregnant women with GDM and 1162 pregnant women without GDM participated in this study. 311 pregnant women with GDM and 311 matched controls were enrolled in a 1:1 case-control study. We used conditional logistic regression to explore the relationship between UA levels and the risk of developing GDM. The causal relationship between the two was examined by two-sample Mendelian randomization (MR) analysis., Results: In the 1:1 matched population, the odds ratio (OR) of developing GDM compared with the extreme tertiles of UA levels was 1.967 (95% confidence interval [CI]: 1.475-2.625; P < 0.001). Restricted cubic spline analyses showed a linear relationship between UA and GDM when UA exceeded 222 µmol/L. GDM and UA levels maintained a statistically significant positive correlation in different stratified regression analyses (P < 0.001). However, no evidence of a causal relationship between uric acid and GDM was found by MR analyses with an OR of 1.06 (95% CI: 0.91-1.25) per unit increase in UA., Conclusion: There is a positive correlation between UA levels in early pregnancy and the subsequent risk of developing GDM. However, no genetic evidence was found to support a cause-effect relationship between UA and GDM., (© 2024. The Author(s).)
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- 2024
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24. MnasNet-SimAM: An Improved Deep Learning Model for the Identification of Common Wheat Diseases in Complex Real-Field Environments.
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Wen X, Maimaiti M, Liu Q, Yu F, Gao H, Li G, and Chen J
- Abstract
Deep learning approaches have been widely applied for agricultural disease detection. However, considerable challenges still exist, such as low recognition accuracy in complex backgrounds and high misjudgment rates for similar diseases. This study aimed to address these challenges through the detection of six prevalent wheat diseases and healthy wheat in images captured in a complex natural context, evaluating the recognition performance of five lightweight convolutional networks. A novel model, named MnasNet-SimAM, was developed by combining transfer learning and an attention mechanism. The results reveal that the five lightweight convolutional neural networks can recognize the six different wheat diseases with an accuracy of more than 90%. The MnasNet-SimAM model attained an accuracy of 95.14%, which is 1.7% better than that of the original model, while only increasing the model's parameter size by 0.01 MB. Additionally, the MnasNet-SimAM model reached an accuracy of 91.20% on the public Wheat Fungi Diseases data set, proving its excellent generalization capacity. These findings reveal that the proposed model can satisfy the requirements for rapid and accurate wheat disease detection.
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- 2024
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25. Five decades of clinical ABO-incompatible liver transplantation research: a bibliometric analysis.
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Maimaiti M, Mamuti A, Azhati Y, Tulading A, Zhang YF, Wu J, Tuersunmaimaiti A, Lv CH, Yao G, Aierken A, Li T, Aji T, Shao YM, Wen H, and Tuxun T
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- 2024
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26. Blocking cGAS-STING pathway promotes post-stroke functional recovery in an extended treatment window via facilitating remyelination.
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Maimaiti M, Li C, Cheng M, Zhong Z, Hu J, Yang L, Zhang L, Hong Z, Song J, Pan M, Ma X, Cui S, Zhang P, Hao H, Wang C, and Hu H
- Subjects
- Animals, Mice, Infarction, Middle Cerebral Artery drug therapy, Infarction, Middle Cerebral Artery pathology, Signal Transduction drug effects, Male, Mice, Inbred C57BL, Stroke drug therapy, Stroke metabolism, Ischemic Stroke drug therapy, Ischemic Stroke metabolism, Nucleotidyltransferases metabolism, Nucleotidyltransferases genetics, Membrane Proteins metabolism, Membrane Proteins genetics, Recovery of Function drug effects, Disease Models, Animal, Remyelination drug effects
- Abstract
Background: Ischemic stroke is a major cause of worldwide death and disability, with recombinant tissue plasminogen activator being the sole effective treatment, albeit with a limited treatment window. The cyclic GMP-AMP synthase (cGAS) and stimulator of interferon genes (STING) pathway is emerging as the major DNA-sensing pathway to invoke immune responses in neuroinflammatory disorders., Methods: By performing a series of neurobehavioral assessments, electrophysiological analysis, high-throughput sequencing, and cell-based assays based on the transient middle cerebral artery occlusion (tMCAO) mouse stroke model, we examined the effects and underlying mechanisms of genetic and pharmacological inhibition of the cGAS-STING pathway on long-term post-stroke neurological functional outcomes., Findings: Blocking the cGAS-STING pathway, even 3 days after tMCAO, significantly promoted functional recovery in terms of white matter structural and functional integrity as well as sensorimotor and cognitive functions. Mechanistically, the neuroprotective effects via inhibiting the cGAS-STING pathway were contributed not only by inflammation repression at the early stage of tMCAO but also by modifying the cell state of phagocytes to facilitate remyelination at the sub-acute phase. The activation of the cGAS-STING pathway significantly impeded post-stroke remyelination through restraining myelin debris uptake and degradation and hindering oligodendrocyte differentiation and maturation., Conclusions: Manipulating the cGAS-STING pathway has an extended treatment window in promoting long-term post-stroke functional recovery via facilitating remyelination in a mouse stroke model. Our results highlight the roles of the cGAS-STING pathway in aggregating stroke pathology and propose a new way for improving functional recovery after ischemic stroke., Funding: This work was primarily funded by the National Key R&D Program of China., Competing Interests: Declaration of interests C.W., C.L., and Z.H. are inventors on a patent relating to the STING antagonist SN-011., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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27. Analysis of an Aqueous Extract from Turkish Galls Based on Multicomponent Qualitative and Quantitative Analysis Combined with Network Pharmacology and Chemometric Analysis.
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Zeng Y, Zhao L, Hao M, Maimaiti M, Li Z, Zhang M, and Ma X
- Abstract
The current quality control method for Turkish gall (TG) is limited to assessing total tannin or gallic acid (GA), which offers a basic level of quality control but does not fully capture the true quality of TG. Therefore, it is essential to establish a comprehensive method that utilizes multiple indicators to assess the intrinsic quality of TG. This research utilized UPLC-Q-TOF-MS/MS technology to qualitatively analyze the chemical composition of TG. Subsequently, the potential main active ingredients, targets, and pathways of TG in treating recurrent aphthous ulcers (RAU) were explored and analyzed using network pharmacology technology. Quantitative analysis of multicomponents by single marker (QAMS) was then employed to quantify the primary pharmacodynamic components in TG. Finally, chemometrics analysis was utilized to interpret the measured results and identify the markers of scavenging quality. The study identified 36 chemical components in TG, highlighting ellagic acid (EA), GA, and so on as key components in treating RAU. A method for simultaneously determining GA, EA, 1,2,3,6-tetra-O-galloyl- β -D-glucose (TEGG) and 1,2,3,4,6-penta-O-galloyl- β -D-glucose (PEGG) in TG was established. Statistical analysis revealed significant differences in the content of these 4 components across 14 batches of TG, with GA and PEGG identified as the primary contributors to the variations. This study determined a quality index for TG, providing a reference for quality evaluation and introducing a cost-effective and efficient quality control method. Furthermore, it addressed the challenge of developing new Chinese medicine by overcoming the lack of reference substances., Competing Interests: The authors declare that there are no conflicts of interest regarding the publication of this article., (Copyright © 2024 Ya Zeng et al.)
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- 2024
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28. A comparative study of the use of digital technology in the anterior smile experience.
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Liu J, Maihemaiti M, Ren L, Maimaiti M, Yang N, Wang Y, Wang M, Wang X, Fu Y, and Wang Z
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- Humans, Female, Male, Adult, Incisor, Printing, Three-Dimensional, Digital Technology, Dental Prosthesis Design, Crown Lengthening methods, Young Adult, Middle Aged, Computer-Aided Design, Esthetics, Dental, Smiling, Crowns
- Abstract
Objectives: this study aims to compare the clinical outcomes of traditional and digital crown extension guides in the aesthetic restoration of anterior teeth. Additionally, the study will analyze the differences in the results of various digital crown extension guides in anterior aesthetic restorations., Methods: Sixty-two patients who required aesthetic restoration of their anterior teeth were selected for this study. The patients had a total of 230 anterior teeth and were randomly divided into three groups: a control group of 22 cases who received diagnostic wax-up with pressure film, an experimental group 1 of 20 cases who received 3D printed digital models with pressure film, and an experimental group 2 of 20 patients who received digital dual-positioning guides. The control group had a total of 84 anterior teeth, experimental group 1 had 72 anterior teeth, and experimental group 2 had 74 anterior teeth. The study compared three methods for fabricating crown extension guides: the control group used the diagnostic wax-up plus compression film method, while experimental group 1 used compression film on 3D printed models and experimental group 2 used 3D printed digital dual-positioning crown extension guides. After the crown lengthening surgery, the control group patients wore DMG resin temporary crown material for gingival contouring, while the experimental group patients wore 3D printed resin temporary crowns for the same purpose. The patients were followed up in the outpatient clinic after wearing temporary crowns for 1 month, 3 months, and 6 months, respectively. The clinical results were evaluated in terms of marginal fit, red aesthetic index, and white aesthetic index., Results: Based on the statistical analysis, the experimental group required significantly fewer follow-up visits and less time for guide design and fabrication compared to the control group. Additionally, the surgical time for the experimental group was significantly shorter than that of the control group. During the postoperative period between the 1st and 3rd month, the PES index scores for the marginal gingival level, proximal, and distal mesiodistal gingival papillae of the experimental group showed a trend of superiority over those of the control group. By the 6th month, the marginal gingival level exhibited a significant difference between the experimental and control groups. The experimental group demonstrated superior results to the control group in terms of shape, contour, and volume of the teeth, color, surface texture, and transparency of the restorations, and features during the 1st and 3rd postoperative months. In the 6th month, the comparative results indicated that the experimental group continued to exhibit superior outcomes to the control group in terms of the shape, color, surface texture, and transparency of the restorations, as well as the characteristics of the teeth. Additionally, the experimental group demonstrated significantly fewer gingival alterations than the control group at 1 month, 3 months, and 6 months post-procedure, with this difference being statistically significant. Furthermore, the combination of 3D printing technology and restorative techniques was utilized, resulting in consistent patient satisfaction., Conclusion: Digitalisation plays an important role in anterior aesthetic restorations. The use of digital technology to manage the entire process of anterior cosmetic restorations can improve restorative results, reduce the number of follow-up appointments, shorten consultation time, and achieve better patient satisfaction., (© 2024. The Author(s).)
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- 2024
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29. Upconversion luminescence and temperature sensing properties of Ho 3+ ,Yb 3+ -codoped Bi 2 WO 6 .
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Jiang M, Wang L, Maimaiti M, Feng X, and Zhang Y
- Abstract
Ho
3+ and Yb3+ -codoped Bi2 WO6 upconversion luminescent materials at different concentrations were prepared via a high-temperature solid-phase method. The X-ray diffraction patterns showed that Ho3+ and Yb3+ doping basically did not affect the orthorhombic crystal system structure of the Bi2 WO6 matrix material. Scanning electron microscopy images showed that 3%Ho3+ ,10%Yb3+ :Bi2 WO6 consisted of irregular bulk particles with sizes in the range of 0.5-2 μm and some powder agglomeration. SEM mapping and EDS measurements of the powder showed that the elements were relatively uniformly distributed. Under 980 nm excitation, the emission intensity of Ho3+ was the largest for the 3%Ho3+ - and 10%Yb3+ -doped sample. With an excitation power ranging from 45 mW to 283 mW for the 3%Ho3+ ,10%Yb3+ :Bi2 WO6 sample, the relationship between the luminescence intensity and pump power was determined; the results indicated that the Ho3+ (538 nm, 546 nm, 660 nm, 756 nm) emission peaks originated from two-photon absorption. In the temperature range of 298 K-573 K, under 980 nm laser excitation, the maximum absolute temperature sensitivity Sa was 0.029% K-1 (373 K), the maximum relative temperature sensitivity Sr was 0.034% K-1 (348 K) for the Ho3+ thermally coupled energy levels5 F4 /5 S2 , and the minimum temperature resolution δ T was 1.2857 K (298 K). Under the same conditions, the maximum Sa was 51.02% K-1 (573 K), the maximum Sr was 1.85% K-1 (523 K) for the Ho3+ nonthermally coupled energy levels5 F5 /5 F4 , and the minimum δ T is 0.2477 K (448 K). The colour coordinates showed that the luminescence of the 3%Ho3+ ,10%Yb3+ :Bi2 WO6 sample gradually shifted from the green region to the red region with increasing temperature.- Published
- 2024
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30. Accurate correction model of blood potassium concentration in hemolytic specimens.
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Maimaiti M, Yang B, Xu T, Cui L, and Yang S
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- Humans, Female, Hematologic Tests methods, Specimen Handling, Linear Models, Potassium, Hemolysis
- Abstract
Background and Aims: The results of blood potassium can be seriously affected by specimen hemolysis which may interfere with clinicians' interpretation of test results. Redrawing blood and retesting may delay treatment time and it is not feasible for critically ill patients with difficulty in specimen collection. Therefore, it is significant to establish a mathematical model that can quickly correct the blood potassium concentration of hemolytic specimens., Materials and Methods: The residual blood samples from 107 patients at Peking University Third Hospital were collected to establish potassium correction model. Samples with different hemolysis indexes were obtained by ultrasonic crushing method. Blood potassium correction models of hemolysis specimens were established by linear regression and curve fitting using SPSS and MATLAB, respectively. In addition, blood samples from another 85 patients were used to verify the accuracy of the models and determine the optimal model., Results: Variation of potassium (ΔK) was 0.003HI-0.03 (R
2 = 0.9749) in linear regression model which had high correlation in ΔK and HI, and the correction formula was Kcorrection = Khemolysis -0.003 × HI + 0.03. Average rate of potassium change (αaverage ) was 0.003 ± 0.0002 mmol/L in curve fitting model, and correction formula was Kcorrection = Khemolysis -0.003 × HI, and both men and women can use the same correction model. The accuracy of linear regression model was 96.5 %, and there was statistical difference between the verification results and the measured values (p < 0.05), while the accuracy of curve fitting model was 100 %, and there was no statistical difference between the verification results and the measured values (p = 0.552). The model was validated in an independent set of samples and all were within the TEa of 6 % and the accuracy of 100 %., Conclusions: Both linear regression and curve fitting models of potassium correction had high accuracy, and can effectively correct the potassium concentration of hemolytic specimens, while the curve fitting model have superior accuracy., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)- Published
- 2024
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31. STING signaling in islet macrophages impairs insulin secretion in obesity.
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Hong Z, Chen S, Sun J, Cheng D, Guo H, Mei J, Zhang X, Maimaiti M, Hao H, Cao P, Hu H, and Wang C
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- Humans, Insulin Secretion, Macrophages metabolism, Inflammation metabolism, Cytokines metabolism, Obesity genetics, Diabetes Mellitus, Type 2 metabolism
- Abstract
The innate immune regulator stimulator of interferon genes (STING) mediates self-DNA sensing and leads to the induction of type I interferons and inflammatory cytokines, which promotes the progression of various inflammatory and autoimmune diseases. Innate immune system plays a critical role in regulating obesity-induced islet dysfunction, whereas the potential effect of STING signaling is not fully understood. Here, we demonstrate that STING is mainly expressed and activated in islet macrophages upon high-fat diet (HFD) feeding. Sting
-/- alleviates HFD-induced islet inflammation by inhibiting the expression of pro-inflammatory cytokines and the infiltration of macrophages. Mechanically, palmitic acid incubation promotes mitochondrial DNA leakage into the cytosol and subsequently activates STING pathway in macrophages. Additionally, STING activation in macrophages impairs glucose-stimulated insulin secretion by mediating the engulfment of β cell insulin secretory granules. Pharmacologically inhibiting STING activation enhances insulin secretion to control hyperglycemia. Together, our results reveal a regulatory mechanism in controlling the islet inflammation and insulin secretion in diet--induced obesity and suggest that selective blocking of the STING activation may be a promising strategy for treating type 2 diabetes., (© 2023. Science China Press.)- Published
- 2024
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32. Gut microbiota changes associated with low-carbohydrate diet intervention for obesity.
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Li L, Zhao X, Abdugheni R, Yu F, Zhao Y, Ma BF, Yang Z, Li R, Li Y, Maimaitiyiming Y, and Maimaiti M
- Abstract
Low-carbohydrate diets (LCDs) are frequently recommended for alleviating obesity, and the gut microbiota plays key roles in energy metabolism and weight loss. However, there is limited in-human research on how LCD changes gut microbiota. In this before-after study, 43 participants were assigned to the LCD intervention for 4 weeks. The main objective was to investigate the specific changes that occur in the participants' microbiome in response to the LCD. Changes in gut microbiota were analyzed using 16s rRNA sequencing. Body composition was measured using InBody 770. Remarkably, 35 participants (79.07%) lost more than 5% of their body weight; levels of BMI, body fat, and total cholesterol were significantly decreased, indicating the effectiveness of the LCD intervention. The richness of microbiota significantly increased after the intervention. By taking the intersection of ANOVA and linear discriminant analysis effect size (LEfSe) analysis results, we identified three phyla, three classes, four orders, five families, and six genera that were differentially enriched between baseline and week-4 time points. Among the three phyla, relative abundances of Firmicutes and Actinobacteriota decreased significantly, while Bacteroidetes increased significantly. At the genus level, Ruminococcus , Agathobacter , Streptococcus , and Bifidobacterium showed a significant reduction in relative abundances, whereas Parabacteroides and Bacteroides increased steadily. Our results demonstrate that LCD can effectively alleviate obesity and modify certain taxa of gut microbiota, providing potential insights for personalized dietary interventions against obesity., Competing Interests: Conflict of interest: Authors state no conflict of interest., (© 2024 the author(s), published by De Gruyter.)
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- 2024
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33. Protective effect of intermittent hypobaric hypoxia against radiation-induced liver damage in Sprague-Dawley rats.
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Li W, Xu L, Wang Y, Li W, Maimaiti M, Kou B, Liu C, Zhang M, Xia H, and Yuan F
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- Humans, Rats, Male, Animals, Rats, Sprague-Dawley, Hypoxia, Liver, Transforming Growth Factor beta1, Tumor Necrosis Factor-alpha
- Abstract
Background: Without timely and effective interventions or treatments, radiation-induced liver damage (RILD) can lead to serious consequences for the patients and their families., Objective: To investigate the protective effect of intermittent hypobaric hypoxia preconditioning (IHHP) in RILD., Methods: Male adult SD rats were randomly divided into 8 groups including one control group, one only irradiation group and other experimental groups. Blood routine tests and liver function tests were all assessed with abdominal venous blood. Moreover, hematoxylin eosin (HE) staining and immunohistochemistry assay were used to detect the histopathological changes and expressions of transforming growth factor-β1 (TGF-β1), tumor necrosis factor α (TNF-α) and hypoxia-inducible factor 1α (HIF-1α) in radiated liver sections., Results: Blood routing tests showed that RBC, WBC and Hb were all significantly increased while the differences of these results between different groups with same simulated altitude were approximate. However, liver function in the IHHP plus irradiation at 4000 m group was significantly decreased (P< 0.05) compared to only irradiation groups, and the manifestation of HE and lower positive expression of TNF-α showed improved histopathological changes in the liver section. Furthermore, no significant difference of HIF-1α expression between any two groups treated with IHHP was observed., Conclusion: IHHP at the altitude of 4000 m group could alleviate the radioactive liver damage by downregulating TNF-α and less strong positive expression of TGF-β1. Furthermore, patients exposed to radiation might benefit from this treatment to prevent or reduce the RILD.
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- 2024
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34. Comprehensive analysis of subtypes and risk model based on complement system associated genes in ccRCC.
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Li Y, Maimaiti M, Yang B, Lu Z, Zheng Q, Lin Y, Luo W, Wang R, Ding L, Wang H, Chen X, Xu Z, Wang M, Li G, and Gao L
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- Humans, Clinical Relevance, Cluster Analysis, Tumor Microenvironment genetics, Carcinoma, Renal Cell genetics, Carcinoma, Kidney Neoplasms genetics
- Abstract
Background: Immune therapy is widely used in treating clear cell renal cell carcinoma (ccRCC), yet identifying patient subgroups that are expected to response remains challenging. As complement system can mediate immune effects, including the progression of tumors, a correlation between complement system and immune therapy may exist., Methods: Based on 11 complement system associated genes (CSAGs) identified from The Cancer Genome Atlas (TCGA), we performed unsupervised clustering and classified the tumors into two different complement system (CS) patterns. The clinical significance, tumor microenvironment (TME), functional enrichment, and immune infiltration were further analyzed. A novel scoring system named CSscore was developed based on the expression levels of the 11 CSAGs., Results: Two distinct CS patterns were identified, classified as Cluster1 and Cluster2, and Cluster1 showed poor clinical outcome. Further analysis of functional enrichment, immune cell infiltration, and genetic variation revealed that Cluster1 had high infiltration of TME immune cells, but also exhibited high immune escape. The novel prognostic model, CSscore could act as an independent prognostic factor and effectively predict patients' prognosis and distinguish the therapeutic efficacy of different immune treatment strategies. The pan-cancer analysis of the CSscore indicates its potential to be further generalized to other types of cancer., Conclusions: Two distinct CS patterns were identified and were further analyzed in terms of infiltration of TME immune cells and immune escape, providing potential explanations for the impact on prognosis of ccRCC. Our CSscore prognostic model may offer a novel perspective in the management of ccRCC patients, and potentially other types of cancer as well., Competing Interests: Declaration of Competing Interest The authors declare that the research was conducted without any potential conflicts of interest arising from commercial or financial relationships., (Copyright © 2023.)
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- 2023
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35. Recognition of Wheat Leaf Diseases Using Lightweight Convolutional Neural Networks against Complex Backgrounds.
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Wen X, Zeng M, Chen J, Maimaiti M, and Liu Q
- Abstract
Wheat leaf diseases are considered to be the foremost threat to wheat yield. In the realm of crop disease detection, convolutional neural networks (CNNs) have emerged as important tools. The training strategy and the initial learning rate are key factors that impact the performance and training speed of the model in CNNs. This study employed six training strategies, including Adam, SGD, Adam + StepLR, SGD + StepLR, Warm-up + Cosine annealing + SGD, Warm-up + Cosine, and annealing + Adam, with three initial learning rates (0.05, 0.01, and 0.001). Using the wheat stripe rust, wheat powdery mildew, and healthy wheat datasets, five lightweight CNN models, namely MobileNetV3, ShuffleNetV2, GhostNet, MnasNet, and EfficientNetV2, were evaluated. The results showed that upon combining the SGD + StepLR with the initial learning rate of 0.001, the MnasNet obtained the highest recognition accuracy of 98.65%. The accuracy increased by 1.1% as compared to that obtained with the training strategy with a fixed learning rate, and the size of the parameters was only 19.09 M. The above results indicated that the MnasNet was appropriate for porting to the mobile terminal and efficient for automatically identifying wheat leaf diseases.
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- 2023
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36. Current Pubertal Development in Chinese Children and the Impact of Overnutrition, Lifestyle, and Perinatal Factors.
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Liang X, Huang K, Dong G, Chen R, Chen S, Zheng R, Wang C, Wei H, Cao B, Liang Y, Yao H, Su Z, Maimaiti M, Luo F, Li P, Zhu M, Du H, Yang Y, Cui L, Si S, Bai G, Yu Y, Wang EG, Hofman PL, and Fu J
- Subjects
- Child, Female, Humans, Male, Cross-Sectional Studies, East Asian People, Menarche, Obesity, Puberty, Sexual Maturation, Overweight epidemiology, Puberty, Precocious epidemiology, Puberty, Precocious etiology, Puberty, Precocious diagnosis
- Abstract
Context: Age of pubertal onset has been decreasing in many countries but there have been no data on pubertal development in Chinese children over the last decade., Objective: The primary objective of the study was to evaluate the current status of sexual maturation in Chinese children and adolescents. Secondary objectives were to examine socioeconomic, lifestyle, and auxological associations with pubertal onset., Methods: In this national, cross-sectional, community-based health survey, a multistage, stratified cluster random sampling method was used to select a nationally representative sample, consisting of 231 575 children and adolescents (123 232 boys and 108 343 girls) between 2017 and 2019. Growth parameters and pubertal staging were assessed by physical examination., Results: Compared to 10 years previously, the median age of Tanner 2 breast development and menarche were similar at 9.65 years and 12.39 years respectively. However, male puberty occurred earlier with a median age of testicular volume ≥4 mL of 10.65 years. Pubertal onset did occur earlier at the extremes, with 3.3% of the girls with breast development at 6.5-6.99 years old, increasing to 5.8% by 7.5-7.99 years old. Early pubertal onset was also noted in boys, with a testicular volume ≥ 4 mL noted in 1.5% at 7.5-7.99 years, increasing to 3.5% at 8.5-8.99 years old. Obesity and overweight increased risk of developing earlier puberty relative to normal weight in both boys and girls., Conclusion: Over the past decade, pubertal development is occurring earlier in Chinese children. While the cause is multifactorial, overweight and obesity are associated with earlier puberty onset. The currently used normative pubertal data of precocious puberty may not be applicable to diagnose precocious puberty., (© The Author(s) 2023. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2023
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37. The predictive value of perioperative circulating markers on surgical complications in patients undergoing robotic-assisted radical prostatectomy.
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Lu H, Yu C, Maimaiti M, and Li G
- Subjects
- Male, Humans, Surgical Wound Infection, Retrospective Studies, Prostatectomy, Robotic Surgical Procedures, Prostatic Neoplasms
- Abstract
Background: The occurrence of postoperative complications was associated with poor outcomes for patients undergoing robotic-assisted radical prostatectomy. A prediction model with easily accessible indices could provide valuable information for surgeons. This study aims to identify novel predictive circulating biomarkers significantly associated with surgical complications., Methods: We consecutively assessed all multiport robotic-assisted radical prostatectomies performed between 2021 and 2022. The clinicopathological factors and perioperative levels of multiple circulating markers were retrospectively obtained from the included patients. The associations of these indices with Clavien-Dindo grade II or greater complications, and surgical site infection were assessed using univariable and multivariable logistic regression models. Further, the models were validated for the overall performance, discrimination, and calibration., Results: In total, 229 patients with prostate cancer were enrolled in this study. Prolonged operative time could independently predict surgical site infection (OR, 3.39; 95% CI, 1.09-10.54). Higher RBC (day 1-pre) implied lower risks of grade II or greater complications (OR, 0.24; 95% CI, 0.07-0.76) and surgical site infection (OR, 0.23; 95% CI, 0.07-0.78). Additionally, RBC (day 1-pre) independently predicted grade II or greater complications of obese patients (P value = 0.005) as well as those in higher NCCN risk groups (P value = 0.012). Regarding the inflammatory markers, NLR (day 1-pre) (OR, 3.56; 95% CI, 1.37-9.21) and CRP (day 1-pre) (OR, 4.16; 95% CI, 1.69-10.23) were significantly associated with the risk of grade II or greater complications, and both the indices were independent predictors in those with higher Gleason score, or in higher NCCN risk groups (P value < 0.05). The NLR (day 0-pre) could also predict the occurrence of surgical site infection (OR, 5.04; 95% CI, 1.07-23.74)., Conclusions: The study successfully identified novel circulating markers to assess the risk of surgical complications. Postoperative increase of NLR and CRP were independent predictors for grade II or greater complications, especially in those with higher Gleason score, or in higher NCCN risk groups. Additionally, a marked decrease of RBC after the surgery also indicated a higher possibility of surgical complications, especially for the relatively difficult procedures., (© 2023. The Author(s).)
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- 2023
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38. Effects and Safety of Different Silver Preparation in Burns Treatment: A Bayesian Network Meta-analysis.
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Kuerban D, Maimaiti M, and Chen Z
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- Humans, Silver, Network Meta-Analysis, Silver Sulfadiazine, Pain, Anti-Infective Agents, Local adverse effects, Burns diagnosis, Burns drug therapy
- Abstract
Silver formulation has been used for external use of burn wounds for several decades, mainly including silver sulfadiazine (SSD), nanosilver dressing (NSD), and silver ion dressing (SID). At present, there is no simultaneous comparison of the effects of silver formulation on burn wounds. The databases were retrieved in an orderly manner from the dates of their establishment to May 2020, including PubMed, the Cochrane Library, Web of Science, and Clinical Trials. Then a network meta-analysis was conducted using R and RevMan 5.1 software. A total of 13 randomized controlled trials (RCTs) involving 945 patients with burns were included. A pairwise meta-analysis of the results was presented: the wound healing time in the SID or NSD treatment group was less than that in the SSD group; and in relieving the pain there was a statistical difference between the SSD, SID, or NSD groups. Network meta-analysis of the results was presented: the wound healing time and relieving the pain in the SID or NSD treatment group were less than that in the SSD group, but there was no statistical difference between the SID and NSD groups. The possibility of NSD in the wound healing time being the best treatment was 75.2%, followed by SID (36.6%), and finally SSD (1.1%); and the possibility of NSD being the best relieving the pain was 83.5%; followed by SID (60.0%), and finally SSD (16.3%). According to the evidence, treatment for burns with NSD can improve the wound healing time and relieve the pain of wounds.
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- 2023
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39. Late-Onset Anti-GABA B Receptor Encephalitis: Clinical Characteristics and Outcomes Differing From Early-Onset Patients.
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Sun T, Zhao D, Zhang G, Huang Y, Guo J, Jiang W, Jia R, Maimaiti M, Liu J, Bu N, Li Z, Yan Y, Zhang X, Sun C, Zhao C, Jia X, Mao B, Tian H, Liu Y, Chen Z, Fan Z, Guo X, Lu J, Ren K, Li H, and Guo J
- Subjects
- Male, Humans, Infant, Retrospective Studies, Treatment Outcome, Antibodies, Immunotherapy methods, Encephalitis diagnosis, Encephalitis epidemiology, Encephalitis therapy
- Abstract
Background and Objectives: Existing evidence indicates anti-GABA
B receptor encephalitis (GABAB R-E) seems to occur more commonly later in life, yet the age-associated differences in clinical features and outcomes are not well determined. This study aims to explore the demographic, clinical characteristics, and prognostic differences between late-onset and early-onset GABAB R-E and identify predictors of favorable long-term outcomes., Methods: This is an observational retrospective study conducted in 19 centers from China. Data from 62 patients with GABAB R-E were compared between late-onset (aged 50 years or older) and early-onset (younger than 50 years) groups and between groups with favorable outcomes (modified Rankin scale (mRS) ≤ 2) and poor outcomes (mRS >2). Logistic regression analyses were applied to identify factors affecting long-term outcomes., Results: Forty-one (66.1%) patients experienced late-onset GABAB R-E. A greater proportion of males, a higher mRS score at onset, higher frequencies of ICU admission and tumors, and a higher risk of death were demonstrated in the late-onset group than in the early-onset group. Compared with poor outcomes, patients with favorable outcomes had a younger onset age, a lower mRS score at onset, lower frequencies of ICU admission and tumors, and a greater proportion with immunotherapy maintenance for at least 6 months. On multivariate regression analysis, age at onset (OR, 0.849, 95% CI 0.739-0.974, p = 0.020) and the presence of underlying tumors (OR, 0.095, 95% CI 0.015-0.613, p = 0.013) were associated with poorer long-term outcomes, whereas immunotherapy maintenance for at least 6 months was associated with favorable outcomes (OR, 10.958, 95% CI 1.469-81.742, p = 0.020)., Discussion: These results demonstrate the importance of risk stratification of GABAB R-E according to age at onset. More attention should be paid to older patients especially with underlying tumors, and immunotherapy maintenance for at least 6 months is recommended to achieve a favorable outcome., (Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.)- Published
- 2023
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40. Upregulation of LAG3 modulates the immune imbalance of CD4+ T-cell subsets and exacerbates disease progression in patients with alveolar echinococcosis and a mouse model.
- Author
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Li D, Ainiwaer A, Zheng X, Wang M, Shi Y, Rousu Z, Hou X, Kang X, Maimaiti M, Wang H, Li J, and Zhang C
- Subjects
- Mice, Animals, Up-Regulation, Th1 Cells, Disease Progression, CD4-Positive T-Lymphocytes, Interleukin-4
- Abstract
Infection with the cestode Echinococcus multilocularis (E. multilocularis) causes alveolar echinococcosis (AE), a tumor-like disease predominantly affecting the liver but able to spread to any organ. T cells develop functional defects during chronic E. multilocularis infection, mostly due to upregulation of inhibitory receptors such as T-cell immunoreceptor with immunoglobulin and immunoreceptor tyrosine-based inhibitory motif domains (TIGIT) and programmed death-1 (PD-1). However, the role of lymphocyte activation gene-3 (LAG3), an inhibitory receptor, in AE infection remains to be determined. Here, we discovered that high expression of LAG3 was mainly found in CD4+ T cells and induced regulatory T cells (iTregs) in close liver tissue (CLT) from AE patients. In a mouse model of E. multilocularis infection, LAG3 expression was predominantly found in T helper 2 (Th2) and Treg subsets, which secreted significantly more IL-4 and IL-10, resulting in host immune tolerance and disease progression at a late stage. Furthermore, LAG3 deficiency was found to drive the development of effector memory CD4+ T cells and enhance the type 1 CD4+ T-cell immune response, thus inhibiting metacestode growth in vivo. In addition, CD4+ T cells from LAG3-deficient mice produced more IFN-γ and less IL-4 when stimulated by E. multilocularis protoscoleces (EmP) antigen in vitro. Finally, adoptive transfer experiments showed that LAG3-knockout (KO) CD4+ T cells were more likely to develop into Th1 cells and less likely to develop into Tregs in recipient mice. Our work reveals that high expression of LAG3 accelerates AE disease progression by modulating the immune imbalance of CD4+ T-cell subsets. These findings may provide a novel immunotherapeutic strategy against E. multilocularis infection., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Li et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
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41. Construction of a new complete growth reference for urban Chinese children.
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Wu W, Chen J, Mo M, Si S, Huang K, Chen R, Maimaiti M, Chen S, Gong C, Zhu M, Wang C, Su Z, Liang Y, Yao H, Wei H, Zheng R, Du H, Yang Y, Luo F, Li P, Cui L, Dong G, Yu Y, and Fu J
- Subjects
- Adolescent, Male, Female, Child, Humans, Body Weight, Cross-Sectional Studies, China epidemiology, Reference Values, Body Height, East Asian People
- Abstract
Background: Growth chart is a valuable clinical tool to monitor the growth and nutritional status of children. A growth chart widely used in China is based on the merged data sets of national surveys in 2005. We aimed to establish an up-to-date, complete growth curve for urban Chinese children and adolescents with a full range of ages., Methods: Using data collected in a large-scale, cross-sectional study (Prevalence and Risk factors for Obesity and Diabetes in Youth (PRODY), 2017-2019), we analyzed 201,098 urban children aged 3 to 18 years from 11 provinces, autonomous regions, and municipalities that are geographically representative of China. All participants underwent physical examinations. Sex-specific percentiles of height-for-age and weight-for-age were constructed by Generalized Additive Models for Location Scale and Shape (GAMLSS) model. We also compared the median values of height-for-age or weight-for-age between our growth chart and the established growth reference using Welch-Satterthwaite T-Test., Results: Consistent with the established growth reference, we observed that the P
50 percentile of height-for-age reached plateaus at the age of 15 years (172 cm) and 14 years (160 cm) for boys and girls, respectively. In addition, boys aged 10 ~ 14 years and girls aged 10 ~ 12 years exhibited the most dramatic weight difference compared to those of other age groups (19.5 kg and 10.3 kg, respectively). However, our growth chart had higher median values of weight-for-age and height-for-age than the established growth reference with mean increases in weight-for-age of 1.36 kg and 1.17 kg for boys and girls, respectively, and in height-for-age of 2.9 cm and 2.6 cm for boys and girls, respectively., Conclusions: Our updated growth chart can serve as a reliable reference to assess the growth and nutritional status in urban Chinese children throughout the entire childhood., (© 2022. The Author(s).)- Published
- 2022
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42. Risk factors for obesity and overweight in Chinese children: a nationwide survey.
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Chen J, Jin L, Wang F, Huang K, Wu W, Chen R, Maimaiti M, Chen S, Cao B, Zhu M, Wang C, Su Z, Liang Y, Yao H, Wei H, Zheng R, Du H, Luo F, Li P, Yu Y, Wang E, Dorazio RM, and Fu J
- Subjects
- China epidemiology, Female, Humans, Obesity epidemiology, Obesity etiology, Pregnancy, Prevalence, Risk Factors, Surveys and Questionnaires, Exercise, Overweight complications, Overweight epidemiology
- Abstract
Objective: This study aimed to analyze a comprehensive set of potential risk factors for obesity and overweight among Chinese children with a full range of ages and with wide geographical coverage., Methods: In the Prevalence and Risk Factors for Obesity and Diabetes in Youth (PRODY) study (2017-2019), the authors analyzed 193,997 children aged 3 to 18 years from 11 provinces, autonomous regions, and municipalities that are geographically representative of China. All participants underwent physical examinations, and their caregivers completed questionnaires including dietary, lifestyle, familial, and perinatal information of participants. A multilevel multinomial logistic regression model was used to evaluate the potential risk factors., Results: Among the actionable risk factors that were measured, higher consumption frequencies of animal offal (odds ratios [OR] for an additional time/day = 0.91, 95% CI: 0.88-0.95, same unit for OR below unless specified otherwise), dairy products (0.91, 95% CI: 0.88-0.94), freshwater products (0.94, 95% CI: 0.91-0.96), staple foods (0.94, 95% CI: 0.92-0.96), and coarse food grain (OR for every day vs. rarely = 0.92, 95% CI: 0.86-0.98) were associated with lower relative risk of obesity. However, higher restaurant-eating frequency (OR for >4 times/month vs. rarely = 1.21, 95% CI: 1.15-1.29) and longer screen-viewing duration (OR for >2 hours vs. <30 minutes = 1.16, 95% CI: 1.10-1.22) were associated with higher relative risk of obesity. Increased exercise frequency was associated with the lowest relative risk of obesity (OR for every day vs. rarely = 0.72, 95% CI: 0.68-0.77)., Conclusions: Changes in lifestyle and diet of Chinese children may help relieve their obesity burden., (© 2022 The Authors. Obesity published by Wiley Periodicals LLC on behalf of The Obesity Society (TOS).)
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- 2022
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43. Integrated strategy of network analysis prediction and experimental validation to elucidate the possible mechanism of compound Turkish gall ointment in treating eczema.
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Ma X, Hao M, Zhang MH, Zeng Y, Yang QQ, Zhao L, Fan CY, Ji ZH, Li KA, Li ZJ, Maimaiti M, and Nie JH
- Abstract
Background: Compound Turkish gall ointment (CTGO) has a long history of being widely used as a folk medicine in Xinjiang for the treatment of eczema. CTGO is currently in the pre-investigational new drug application stage, but its pharmacological mechanisms of action have not yet been clarified., Methods: First, a sensitive and reliable ultra-high performance liquid chromatography-Q exactive hybrid quadrupole-orbitrap high-resolution accurate mass spectrometry (UHPLC-Q-Orbitrap HRMS) technique was established. Second, an integrative strategy of network analysis and molecular docking based on identified and retrieved ingredients was implemented to investigate the potential targets and pathways involved in the treatment of eczema with CTGO. Finally, Sprague-Dawley (SD) rats with eczema were prepared to verify the predicted results. The skin conditions of the rats were observed, evaluated, and scored. Skin tissues were observed by hematoxylin-eosin (HE) staining, and the levels of serum interferon-γ (IFN-γ) and interleukin-4 (IL-4) were determined by enzyme-linked immunosorbent assay (ELISA). The expression levels of toll-like receptor 4 (TLR4), nuclear factor kappa-B p65 (NF-κB p65), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) were detected by real-time quantitative polymerase chain reaction (RT-qPCR)., Results: A total of 29 compounds were identified. We found 38 active components and 58 targets for the treatment of eczema, which included 118 signaling pathways related to inflammation, immunity, and apoptosis. CTGO significantly improved the skin surface and histopathological characteristics of eczema-affected rats, downregulated the expression of IL-4, TLR4, NF-κB (p65), IL-1β, and TNF-α, and upregulated the expression level of IFN-γ., Conclusion: We predicted and validated our prediction that CTGO may be used to treat eczema by affecting the TLR4/NF-κB signaling pathway, which provides guidance for future experimental studies., (© 2022. The Author(s).)
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- 2022
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44. Pedicle subtraction osteotomy for the corrective surgery of ankylosing spondylitis with thoracolumbar kyphosis: experience with 38 patients.
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Luan H, Liu K, Kahaer A, Wang Y, Sheng W, Maimaiti M, Guo H, and Deng Q
- Subjects
- Adult, Female, Humans, Lumbar Vertebrae diagnostic imaging, Lumbar Vertebrae surgery, Male, Middle Aged, Osteotomy methods, Retrospective Studies, Thoracic Vertebrae diagnostic imaging, Thoracic Vertebrae surgery, Treatment Outcome, Kyphosis diagnostic imaging, Kyphosis etiology, Kyphosis surgery, Lordosis diagnostic imaging, Lordosis etiology, Lordosis surgery, Spondylitis, Ankylosing complications, Spondylitis, Ankylosing diagnostic imaging, Spondylitis, Ankylosing surgery
- Abstract
Objective: To evaluate the sagittal parameters and clinical outcome of pedicle subtraction osteotomy (PSO) for the treatment of ankylosing spondylitis (AS) combined with thoracolumbar kyphosis., Methods: The clinical data of 38 patients with AS combined with thoracolumbar kyphosis who underwent PSO were enrolled and divided into the lumbar lordosis group and the lumbar kyphosis group according to the preoperative sagittal morphology. They were subdivided into the lumbar lordosis T12 group, lordosis L1 group, kyphosis L2 group, and kyphosis L3 group. The spine sagittal parameters were compared between the preoperative and the postoperative. Outcome evaluation was performed by the Japanese Orthopedic Association (JOA) score, visual analogue scale (VAS), and the Oswestry Disability Index (ODI)., Results: A total of 38 patients with AS combined with thoracolumbar kyphosis were successfully treated by PSO, with a mean follow-up time of 26.9 ± 11.9 months. There were 30 males and 8 females with a mean age of 41.6 ± 7.1 years. Twenty patients consisted in the lumbar lordosis group and 18 patients in the lumbar kyphosis group. GK, SVA, and CBVA were improved significantly (P < 0.05) at the final follow-up between the lumbar lordosis T12 group and the L1 group. Patients in the lumbar kyphosis L2 group and L3 group all received satisfactory, including LL, GK, and SVA (P < 0.05). There was no statistically significant difference in the preoperative TK, GK, SVA, PT, and PI between the lumbar lordosis and lumbar kyphosis groups (P > 0.05). Postoperative complications occurred in three cases., Conclusion: PSO was a practical method for the treatment of patients with AS combined with thoracolumbar kyphosis. PSO at L3 was recommended to be selected for the lumbar kyphosis to obtain greater SVA correction. CBVA of single-segment PSO may be significantly lower than the two-segment PSO in the management of patients with kyphosis of lower CBVA., (© 2022. The Author(s).)
- Published
- 2022
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45. The new preparation method for paraffin-embedded samples applying scanning electron microscopy revealed characteristic features in asthma-induced mice.
- Author
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Wakai K, Azuma K, Iwamura C, Maimaiti M, Mikami K, Yoneda K, Sakamoto S, Ikehara S, Yamaguchi T, Hirahara K, Ichikawa T, Nakayama T, and Ikehara Y
- Subjects
- Animals, Coloring Agents, Fibrosis, Humans, Mice, Microscopy, Electron, Scanning, Paraffin Embedding, Staining and Labeling, Asthma pathology
- Abstract
In bronchial asthma patients, mucous cell metaplasia (MCM) and fibrosis occur in the bronchial epithelium and interstitium, respectively. The mucus and collagen fibers are identified by Periodic acid-Schiff stain (PAS) or Sirius red stain on optical microscopy. On a scanning electron microscope (SEM) observation, formalin-fixed-paraffin-embedded specimens have high insulation, thereby attenuating the scattered electron signals leading to insufficient contrast. Moreover, there were no staining methods for SEM observation, which characterizes the changes in epithelium and interstitium by enhancing the scattered electrons. In this study, we established a method of coating osmium thin film on pathological tissue specimens using plasma chemical vapor deposition technology. This method ensured the intensity of scattered electron signals and enabled SEM observation. Furthermore, we found that morphological changes in MCM and interstitial fibrosis could be characterized by Grocott stain, which we optimized to evaluate pathological remodeling in bronchial asthma. Using these techniques, we compared asthma-induced mice with Amphiregulin (Areg) knockout mice, and found that Areg induce MCM, but the production of Grocott-stain-positive substrate in the interstitium is Areg-independent. The method developed in this study provides an understanding of the pathological spatial information linked to the ultrastructural changes in cells and interstitium due to disease-related signaling abnormalities., (© 2022. The Author(s).)
- Published
- 2022
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46. Efficacy of anterior debridement and bone grafting with fusion using internal fixation combined with anti-tuberculosis chemotherapy in the treatment of subaxial cervical tuberculosis.
- Author
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Luan H, Liu K, Wang Y, Kahaer A, Sheng W, Maimaiti M, and Deng Q
- Subjects
- Adult, Antitubercular Agents therapeutic use, Debridement, Female, Humans, Male, Middle Aged, Retrospective Studies, Bone Transplantation, Tuberculosis, Spinal surgery
- Abstract
Background: To evaluate the efficacy of anterior debridement and bone grafting with fusion using internal fixation (BFIF) combined with anti-tuberculosis chemotherapy in the treatment of subaxial cervical spine tuberculosis (SCS-TB)., Methods: Clinical and radiographic data of patients with SCS-TB treated by anterior debridement and BFIF at our hospital from January 2010 to December 2017 were analyzed retrospectively. The SCS sagittal parameters at the preoperative, postoperative, and final follow-up were documented and compared, including the Occiput-C2 angle, C2-C7 Cobb angle, local Cobb angle, spinal canal angle (SCA), C2-C7 sagittal vertical axis (C2-C7 SVA), the center of gravity of the head-C7 sagittal vertical axis (CGH-C7 SVA), T1 slope (T1S), neck tilt (NT), and thoracic inlet angle (TIA). The ASIA grade, NDI index, JOA score, and VAS score were utilized to assess the postoperative function recovery, and the complications were recorded., Results: A total of 23 patients were included in the study with a mean age of 46.74 ± 15.43 years, including 8 males and 15 females. All patients with SCS-TB were treated with anterior debridement and BFIF, with a mean postoperative follow-up time of 37.17 ± 12.26 months. The poisoning symptoms of TB were relieved in all patients, and ESR (42.09 ± 9.53 vs 8.04 ± 5.41, P < 0.05) and CRP (30.37 ± 16.02 vs 7.4 ± 2.68, P < 0.05) were decreased at the 3 postoperative months in the comparison of the preoperative. The C0-C2 Cobb angle, C2-C7 Cobb angle, local Cobb angle, SCA, TIS, C2-C7 SVA, and CGH-C7 SVA were corrected remarkably after surgery (P < 0.05). Further, there was a significant improvement in the JOA, VAS, and NDI with the comparison of the preoperative (P < 0.05)., Conclusions: Anterior debridement and BFIF combined with anti-TB chemotherapy was a practical tool for the treatment of SCS-TB with the help of SCS sagittal parameters, which can remove the lesion completely, decompress the spinal cord compression, and correct the kyphotic deformity to restore the spine sagittal balance., (© 2022. The Author(s).)
- Published
- 2022
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47. m 6 A-mediated modulation coupled with transcriptional regulation shapes long noncoding RNA repertoire of the cGAS-STING signaling.
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Song J, Zhang L, Li C, Maimaiti M, Sun J, Hu J, Li L, Zhang X, Wang C, and Hu H
- Abstract
The cGAS-STING signaling plays pivotal roles not only in host antiviral defense but also in various noninfectious contexts. Compared with protein-coding genes, much less was known about long noncoding RNAs involved in this pathway. Here, we performed an integrative study to elucidate the lncRNA repertoire and the mechanisms modulating lncRNA's expression following cGAS-STING signaling activation. We uncovered a reliable set of 672 lncRNAs closely linked to cGAS-STING signaling activation (cs-lncRNA), which might be associated with type-I interferon response and infection-related phenotypes. The ChIP-seq analysis demonstrated that cs-lncRNA was strongly regulated at the transcriptional level. We further found N 6-methyladenosine (m
6 A) regulatory machinery was indispensable for establishing cs-lncRNA repertoire via modulating m6 A modification on cs-lncRNA transcripts and promoting the expression of signaling transduction key components, including IFNAR1. Loss of IFNAR1 led to the dysregulation of cs-lncRNAs resembled that of loss of an essential subunit of m6 A writer METTL14. We also found m6 A system affected transcriptional machinery to modulate cs-lncRNAs by targeting multiple crucial transcription factors. Inhibiting an m6 A modification regulated transcription factor, EZH2, markedly enhanced the expression pattern of cs-lncRNAs. Taken together, our results uncovered the composition of the cs-lncRNAs and revealed m6 A-mediated modulation coupled with transcriptional regulation significantly shaped cs-lncRNA repertoire., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 The Authors.)- Published
- 2022
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48. [Relationship between body mass index and sexual development in Chinese children].
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Xu XQ, Zhang JW, Chen RM, Luo JS, Chen SK, Zheng RX, Wu D, Zhu M, Wang CL, Liang Y, Yao H, Wei HY, Su Z, Maimaiti M, Du HW, Luo FH, Li P, Si ST, Wu W, Huang K, Dong GP, Yu YX, and Fu JF
- Subjects
- Adolescent, Body Mass Index, Child, Child, Preschool, China epidemiology, Cross-Sectional Studies, Female, Humans, Male, Obesity epidemiology, Puberty, Sexual Development, Overweight epidemiology, Puberty, Precocious
- Abstract
Objective: To investigate the relationship between body mass index (BMI) and sexual development in Chinese children. Methods: A nationwide multicenter and population-based large cross-sectional study was conducted in 13 provinces, autonomous regions and municipalities of China from January 2017 to December 2018. Data on sex, age, height, weight were collected, BMI was calculated and sexual characteristics were analyzed. The subjects were divided into four groups based on age, including ages 3-<6 years, 6-<10 years, 10-<15 years and 15-<18 years. Multiple Logistic regression models were used for evaluating the associations of BMI with sexual development in children. Dichotomous Logistic regression was used to compare the differences in the distribution of early and non-early puberty among normal weight, overweight and obese groups. Curves were drawn to analyze the relationship between the percentage of early puberty and BMI distribution in girls and boys at different Tanner stages. Results: A total of 208 179 healthy children (96 471 girls and 111 708 boys) were enrolled in this study. The OR values of B2, B3 and B4+ in overweight girls were 1.72 (95 %CI : 1.56-1.89), 3.19 (95 %CI : 2.86-3.57), 7.14 (95 %CI : 6.33-8.05) and in obese girls were 2.05 (95 %CI : 1.88-2.24), 4.98 (95 %CI : 4.49-5.53), 11.21 (95 %CI : 9.98-12.59), respectively; while the OR values of G2, G3, G4+ in overweight boys were 1.27 (95 %CI : 1.17-1.38), 1.52 (95 %CI : 1.36-1.70), 1.88 (95 %CI : 1.66-2.14) and in obese boys were 1.27 (95 %CI : 1.17-1.37), 1.59 (95 %CI : 1.43-1.78), and 1.93 (95 %CI : 1.70-2.18) (compared with normal weight Tanner 1 group,all P <0.01). Analysis in different age groups found that OR values of obese girls at B2 stage and boys at G2 stage were 2.02 (95% CI : 1.06-3.86) and 2.32 (95% CI :1.05-5.12) in preschool children aged 3-<6 years, respectively (both P <0.05). And in the age group of 6-10 years, overweight girls had a 5.45-fold risk and obese girls had a 12.54-fold risk of B3 stage compared to girls with normal BMI. Compared with normal weight children, the risk of early puberty was 2.67 times higher in overweight girls, 3.63 times higher in obese girls, and 1.22 times higher in overweight boys, 1.35 times higher in obese boys (all P< 0.01). Among the children at each Tanner stages, the percentage of early puberty increased with the increase of BMI, from 5.7% (80/1 397), 16.1% (48/299), 13.8% (27/195) to 25.7% (198/769), 65.1% (209/321), 65.4% (157/240) in girls aged 8-<9, 10-<11 and 11-<12 years, and 6.6% (34/513), 18.7% (51/273), 21.6% (57/264) to 13.3% (96/722), 46.4% (140/302), 47.5% (105/221) in boys aged 9-<10, 12-<13 and 13-<14 years, respectively. Conclusions: BMI is positively correlated with sexual development in both Chinese boys and girls, and the correlation is stronger in girls. Obesity is a risk factor for precocious puberty in preschool children aged 3-<6 years, and 6-<10 years of age is a high risk period for early development in obese girls.
- Published
- 2022
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49. Prevalence of diabetes mellitus among Uygur children in Hotan Prefecture of Xinjiang, China.
- Author
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Luo YF, Li JK, Mayila A, Dilihuma J, Baoerhan R, Sun GH, Luan LX, and Maimaiti M
- Subjects
- Adolescent, Blood Glucose, Child, Child, Preschool, China epidemiology, Female, Humans, Male, Prevalence, Risk Factors, Pediatric Obesity, Prediabetic State epidemiology
- Abstract
Objectives: To investigate the prevalence of diabetes mellitus (DM) among Uygur children in Hotan Prefecture of Xinjiang, China, as well as the factors influencing the development of DM., Methods: The cluster random sampling method was used to select 5 308 children, aged 4-18 years, from the middle and primary schools and kindergartens in Hotan Prefecture of Xinjiang. The survey methods included questionnaire survey and the measurement of height and weight. All subjects were tested for fasting fingertip blood glucose to investigate the prevalence of DM and impaired fasting glucose (IFG)., Results: A total of 5 184 valid questionnaires were collected. Fourteen children (0.27%) were found to have DM, among whom 8 had type 1 DM, 2 had type 2 DM, and 4 had unclassified DM. Twenty-nine children (0.56%) were found to have IFG. There was no significant difference in the prevalence rate of DM and IFG between boys and girls ( P >0.05). The prevalence rate of DM was 0.18% in the 4-<10 years group, 0.47% in the 10-<15 years group, and 0.07% in the 15-18 years group ( P =0.072).The prevalence rate of IFG in the above three age groups was 0.18%, 0.94%, and 0.42%, respectively, with a significant difference among groups ( P =0.007). The proportion of family history of DM and the proportion of overweight/obesity in children with DM were significantly higher than those in children without DM ( P <0.05), while the proportion of children with DM who preferred coarse grains was significantly lower than that in children without DM ( P <0.05)., Conclusions: The prevalence of DM and IFG in Uyghur children in Hotan Prefecture of Xinjiang is relatively low. There is no significant difference in the prevalence of DM among children of different genders or age groups, but the prevalence of IFG in children of different age groups is different. A family history of DM, overweight or obesity, and low intake of coarse grains might be associated with the development of DM.
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- 2022
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50. Contribution of LAT1-4F2hc in Urological Cancers via Toll-like Receptor and Other Vital Pathways.
- Author
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Zhao X, Sakamoto S, Maimaiti M, Anzai N, and Ichikawa T
- Abstract
Tumor cells are known for their ability to proliferate. Nutrients are essential for rapidly growing tumor cells. In particular, essential amino acids are essential for tumor cell growth. Tumor cell growth nutrition requires the regulation of membrane transport proteins. Nutritional processes require amino acid uptake across the cell membrane. Leucine, one of the essential amino acids, has recently been found to be closely associated with cancer, which activate mTOR signaling pathway. The transport of leucine into cells requires an L-type amino acid transporter protein 1, LAT1 (SLC7A5), which requires the 4F2 cell surface antigen heavy chain (4F2hc, SLC3A2) to form a heterodimeric amino acid transporter protein complex. Recent evidence identified 4F2hc as a specific downstream target of the androgen receptor splice variant 7 (AR-V7). We stressed the importance of the LAT1-4F2hc complex as a diagnostic and therapeutic target in urological cancers in this review, which covered the recent achievements in research on the involvement of the LAT1-4F2hc complex in urinary system tumors. In addition, JPH203, which is a selective LAT1 inhibitor, has shown excellent inhibitory effects on the proliferation in a variety of tumor cells. The current phase I clinical trials of JPH203 in patients with biliary tract cancer have also achieved good results, which is the future research direction for LAT1 targeted therapy drugs.
- Published
- 2022
- Full Text
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