bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of Biventricular Function by Cadmium-zinc-telluride SPECT Gated Tomographic Radionuclide Angiography: Comparison to Conventional SPECT
Authors: Chen Yue , Pang Zekun , Wang Jiao , Li Jianming 
Published: August 2021

Abstract
To compare and analyze the consistency and repeatability of left ventricular (LV) and right ventricular (RV) functions obtained by radionuclide multi-gated acquisition (MUGA) with cadmium-zinc-telluride SPECT (CZT-SPECT) and conventional SPECT(C-SPECT) with sodium iodide (NaI) crystal detectors. Seventy-seven patients who underwent C-SPECT planar MUGA and CZT-SPECT tomographic MUGA on the same day were respectively enrolled and reviewed. Comparing the correlation and difference of LVEF, RVEF, PER, and PFR between the two cameras, The repeatability of the left and right ventricular function parameters obtained by the two cameras was also compared. There was a good correlation (R = 0.831, P < 0.001) of LVEF obtained by the two cameras, the comparison of RVEF (r=0.619, P＜0.001), LVPER (r=0.672, P＜0.001) and LVPFR (r=0.700, P＜0.001) showed a modest correlation and the comparison of RVPER (r=0.463, P＜0.001), LVPFR (r=0.253, P＜0.05) showed a poor correlation. In terms of repeatability, the intraclass correlation coefficient (ICC) of RVPFR(P) was good (0.698, P＜0.001), while the ICC in other groups was excellent (0.823 ~ 0.989, P ＜0.001). The repeatability of LVEF and RVEF measured by CZT-SPECT was better than C-SPECT. The repeatability of LVEF and PER measured by two cameras was better than their respective RVER and PFR. The repeatability of PER and PFR of LV was better than RV for both cameras. CZT-SPECT tomographic MUGA had a good correlation with C-SPECT cardiac planar MUGA in evaluating left and right ventricular systolic function and left ventricular diastolic function, and the repeatability above was even better. The determination of right ventricular diastolic function still needed further study. MUGA with CZT-SPECT will play an important and unique role in the clinical application of accurate evaluation of biventricular function in the future.
Ribonucleotide Reductase: In-vitro S-glutathionylation of R2 and p53R2 Subunits of Mammalian Class I Ribonucleotide Reductase Protein
Authors: Chatterji Ajanta , Holmgren Arne , SENGUPTA RAJIB 
Published: August 2021

Abstract
Ribonucleotide reductases (RNR) catalyze the rate-limiting step in DNA synthesis during the S-phase of the cell cycle. Its constant activity in order to maintain dNTP homeostasis is a fascinating area of research and an attractive candidate for cancer research and antiviral drugs. Redox modification such as S-glutathionylation of the R1 subunit of mammalian RNR protein has been presumed to regulate the activity of RNR during catalytic cycles. Herein, we report S-glutathionylation of the R2 subunit. We have also shown Grx1 system can efficiently deglutathionylate the S-glutathionylated R2 subunit. Additionally, our data also showed for the very first time S-glutathionylation of mammalian p53R2 subunit that regulates DNA synthesis outside S-phase during DNA damage and repair. Taken together, these data will open new avenues for future research relating to exact physiological significance, target thiols, and/or overall RNR activity due to S-glutathionylation of R2 and p53R2 subunits and provide valuable insights for effective treatment regimes.
Prognostic significance of translocator protein in the brain tissue following traumatic brain injury
Authors: Bao Qing , Yuan Xuesong , Bian Xiaoxing , Wei Wenfeng , Jin Peng , Jiang Wenqing 
Published: August 2021

Abstract
Background
The study aimed to measure the expression of translocator protein (TSPO) in brain tissue following traumatic brain injury (TBI) and to determine whether TSPO can predict outcomes.
Methods
TBI patients requiring emergent craniectomy and removing of intracranial hematoma were recruited from Wujin Hospital Affiliated with Jiangsu University between January 2018 and May 2020. TBI patients were divided into unfavorable and favorable groups according to GOS score. The TSPO in brain samples was analyzed by western blot and immunocytochemistry.
Results
The western blot and immunocytochemistry showed that the TSPO in the unfavorable group was higher than that in the favorable group. Double immunofluorescence staining exhibited that the percentage of TSPO positive cells in IBA1 and GFAP positive cells was 45.2 ± 3.1% and 3.5 ± 0.6% respectively. After adjusting for age, sex, CT, ICP and GCS, we found each 1-unit increase in TSPO was associated with 40% higher occurrence of unfavorable outcome (OR = 1.4, 95% CI 0.4–5.6). The area under the receiver operating characteristic curve (AUC), specificity, and sensitivity of TSPO was 0.87, 76.7%, 88.2% respectively.
Conclusion
Our study demonstrated that higher TSPO was associated with higher occurrence of unfavorable outcomes.
A Novel Rapid Visual Detection of Toxoplasma Gondii by Combining Recombinase Polymerase Amplification and Lateral Flow Dipstick Coupled With CRISPR-Cas13a Fluorescence Assay
Authors: Zhao Jinhong , Li Yuanyuan , Xue Qiqi , Zhu Zhiwei , Zou Minghui , Fang Fang 
Published: August 2021

Abstract
Background: Toxoplasmosis caused by infecting with Toxplasma gondii is a kind of parasitic disease that prevalent all over the world and does great harm to pregnant women and newborns. Effective, rapid and accurate diagnosis T. gondii is urgently needed to prevent and treatment the toxoplasmosis. The purpose of this study was to develop a rapid visual detection assay using recombinase aided amplification (RAA) and lateral flow dipstick (LFD) coupled with CRISPR-Cas13a fluorescence, henceforth RAA-Cas13a-LFD, for detection of T. gondii.Methods: Targeting 529bp gene of T. gondii, the primers and probes for RAA-Cas13a-LFD assay were designed and screened. The reaction time of RAA-LFD-Cas13a assay was optimized, as well as the sensitivity and specificity was further validated. Finally, the diagnostic performance of T. gondii was evaluated using the RAA-Cas13a-LFD assay for clinical blood samples.Results: The RAA-Cas13a-LFD assay was performed in an incubator block at 37℃ within 2h, and the amplicons were visible through LFD for naked eye visualization. The detection limit of the developed RAA-Cas13a-LFD assay was 1×10-6 ng/μL with high specificity for T. gondii. Compared with qPCR assay, there was a consistent positive rate among the clinical blood samples. Conclusion: In this study, A rapid and visual RAA-Cas13a-LFD assay was developed. It requires no sophisticated equipment and shows promise for on-site surveillance of T. gondii.
Citri Reticulatae Pericarpium Alleviates Postmyocardial Infarction Heart Failure by Upregulating Pparγ Expression
Authors: Chen Mengli , Zhu Hongyan , Zhu Qingqing , Wu Xiaodong , Zhou Yufei , Gao Rongrong , Shi Mengsha , Zhang Ting , Yin Ting , Zhang Haifeng , Shang Hongcai , Li Xinli 
Published: August 2021

Abstract
PurposeHeart failure after myocardial infarction (MI) is the leading cause of death worldwide. Citri Reticulatae Pericarpium (CRP) is a traditional Chinese herbal medicine that has been used in the clinic for centuries. In this study, we aimed to investigate the roles of CRP in cardiac remodeling and heart failure after MI, as well as the molecular mechanisms involved.MethodsMale C57BL/6 mice aged 8 weeks were subjected to coronary artery ligation to mimic the clinical situation in vivo. Echocardiography was used to assess the systolic function of the mouse heart. Masson trichrome staining and Wheat germ agglutinin (WGA) staining were utilized to determine the fibrotic area and cross-sectional area of the mouse heart, respectively. Cardiomyocytes and fibroblasts were isolated from neonatal rats aged 0–3 days in vitro using enzyme digestion. TUNEL staining and EdU staining were performed to evaluate apoptosis and proliferation, respectively. Gene expression changes were analyzed by qRT–PCR, and protein expression changes were assessed by Western blotting.ResultsOur findings revealed that CRP attenuated cardiac hypertrophy, fibrosis and apoptosis and alleviated heart failure after MI in vivo. Furthermore, CRP mitigated cardiomyocyte apoptosis and fibroblast proliferation and differentiation into myofibroblasts. In addition, the PPARγ inhibitor T0070907 completely abolished the abovementioned beneficial effects of CRP, and the PPARγ activator rosiglitazone failed to further ameliorate cardiac apoptosis and fibrosis in vitro.Conclusion﻿CRP alleviates cardiac hypertrophy, fibrosis, and apoptosis and can ameliorate heart failure after MI via activation of PPARγ.
Comparison of the efficacy and safety between palliative biliary stent placement and duct clearance among elderly patients with choledocholithiasis: A propensity score-matched analysis
Authors: Kitagawa Koh , Mitoro Akira , Ozutsumi Takahiro , Furukawa Masanori , Fujinaga Yukihisa , Nishimura Norihisa , Sawada Yasuhiko , Namisaki Tadashi , Akahane Takemi , Yoshiji Hitoshi 
Published: August 2021

Abstract
Objectives

This study aimed to evaluate and compare the outcomes of palliative endoscopic biliary stenting (EBS) and complete stone removal among elderly patients with choledocholithiasis using propensity score matching.
Methods

From April 2012 to October 2017, 161 patients aged 75 years and older with choledocholithiasis underwent endoscopic retrograde cholangiopancreatography at our institution. Among them, 136 (84.5%) had complete stone removal, and 25 (15.5%) underwent palliative EBS without further intervention until symptom occurrence. The median age of the EBS group was significantly higher than that of the complete stone removal group. The proportion of patients with dementia, cerebral infarction, preserved gallbladder with gallstones, and surgically altered anatomy was higher in the EBS group than in the complete stone removal group. Propensity score matching was used to adjust for different factors. In total, 50 matched patients (n = 25 in each group) were analyzed.
Results

The median duration of cholangitis-free periods was significantly shorter in the EBS group (596 days) than in the complete stone removal group. About half of patients in the EBS group required re-treatment and re-hospitalization for cholangitis during the observation period. Cholangitis was mainly caused by stent migration. There was no significant difference in terms of mortality rate and procedure-related adverse events between the two groups. Death was commonly attributed to underlying diseases. However, one patient in the EBS group died due to severe cholangitis.
Conclusions

Palliative EBS should be indicated only to patients with choledocholithiasis who have a poor prognosis.
Association Between Urine and Serum Estradiol Levels in In Vitro Fertilization Cycles
Authors: Chotboon Chokchai , Salang Lingling , Buppasiri Pranom , Amnatbuddee Siriruthai , Eamudomkarn Nuntasiri 
Published: August 2021

Abstract
Objectives
To study the correlation between urine and serum estradiol (E2) controlled ovarian hyperstimulation (COH)
Methods
This is a cross-sectional analytical study that was conducted in a tertiary care hospital. Seventy-seven urine and blood samplings were collected from infertile women who were treated with COH. An electrochemiluminescent immunoassay was performed to evaluate E2 levels between urine and serum samples on the 6th day and the day of ovarian trigger. In addition, the correlations were evaluated between urine E2 level and number of follicles, retrieved, metaphase II oocytes, and fertilization rate. A sub-analysis was performed for age, responding status and BMI.
Results
Seventy-seven infertile women were recruited. The medians of serum and urine E2 level (E2/creatinine) levels on the day 6th of ovarian stimulation were 833.20 pg/ml (IQR; 516.90–1,371.00) and 3.67 (IQR; 2.84–4.81), respectively. On the day of ovarian trigger, the median of serum E2 level was 2,113.00 pg/ml (IQR; 1,382.00–3,885.00) and urine E2 level (E2/creatinine) was 6.84 (IQR; 5.34–8.70). The correlation between serum and urine E2 level on day 6th was 0.53 and the day of ovarian trigger was 0.59, p < 0.001. Moreover, the correlations of urine E2 level on the day of ovarian trigger to number of follicles, number of oocytes retrieved, metaphase II oocytes and fertilization rate were 0.57, 0.58, 0.61, and 0.64 (P < 0.001).
Conclusion
The urine E2 level was moderately correlated to serum E2, number of follicles growth, oocytes retrieved and also fertilization rate.
A Regime Shift in Seasonal Total Antarctic Sea Ice Extent in the 20th Century
Authors: Fogt Ryan , Sleinkofer Amanda , Raphael Marilyn , Handcock Mark 
Published: August 2021

Abstract
In stark contrast to the Arctic, there have been statistically significant positive trends in total Antarctic sea ice extent since 1979, despite a sudden decline in sea ice in 2016(1–5) and increasing greenhouse gas concentrations. Attributing Antarctic sea ice trends is complicated by the fact that most coupled climate models show negative trends in sea ice extent since 1979, opposite of that observed(6–8). Additionally, the short record of sea ice extent (beginning in 1979), coupled with the high degree of interannual variability, make the record too short to fully understand the historical context of these recent changes(9). Here we show, using new robust observation-based reconstructions, that 1) these observed recent increases in Antarctic sea ice extent are unique in the context of the 20th century and 2) the observed trends are juxtaposed against statistically significant decreases in sea ice extent throughout much of the early and middle 20th century. These reconstructions are the first to provide reliable estimates of total sea ice extent surrounding the continent; previous proxy-based reconstructions are limited(10). Importantly, the reconstructions continue to show the high degree of interannual Antarctic sea ice extent variability that is marked with frequent sudden changes, such as observed in 2016, which stress the importance of a longer historical context when assessing and attributing observed trends in Antarctic climate(9). Our reconstructions are skillful enough to be used in climate models to allow better understanding of the interconnected nature of the Antarctic climate system and to improve predictions of the future state of Antarctic climate.
Reconciling Biome-Wide Conservation of an Apex Carnivore with Land-Use Economics: Jaguars (Panthera Onca) in the Increasingly Threatened Pantanal Wetlands
Authors: Tortato Fernando R. , Hoogesteijn Rafael , Devlin Allison L. , Quigley Howard B. , Bolzan Fábio , Izzo Thiago J. , Ferraz Katia M. P. M. B. , Peres Carlos A. 
Published: August 2021

Abstract
Conservation of carnivores involves finding solutions to minimize habitat loss and human-wildlife conflicts, and understanding the nature of land-use economics can allow us to mitigate both threats. In the Pantanal, the two main economic activities are cattle ranching and ecotourism, each of which directly and indirectly affect the persistence of jaguars (Panthera onca). To understand how the geography of these economic activities is related to jaguar populations, we developed a jaguar distribution model (JDM), livestock density model, and ecotourism lodge density model for the Pantanal. Due to the recent wildfires within the Pantanal, we also assess the impact of burnt areas that are suitable for jaguars, cattle ranching, and tourism. Our JDM indicate that 64% of the Pantanal holds suitable habitat for jaguars. However, jaguar habitat suitability was positively correlated with ecotourism, but negatively correlated with areas most suitable for intensive cattle-ranching. This demonstrates a biome-wide scenario compatible with jaguar conservation. Of particular concern, recent wildfires overlap most suitable areas for jaguars. If wildfires become increasingly frequent, this would represent a serious threat to jaguars and many other wildlife populations. We emphasize the global importance of the Pantanal wetland ecoregion as a key stronghold for long-term jaguar conservation.
(Ce, Gd):YAG-Al2O3 composite ceramics for high-brightness yellow light-emitting diode applications
Authors: Li Xiaoyun , Chen Jian , Liu Zhuguang , Deng Zhonghua , Huang Qiufeng , Huang Jiquan , Guo Wang 
Published: August 2021

Abstract
Gd3+ ions were doped in Ce:YAG ceramics as the phosphor material for the high-brightness yellow LED (565-590 nm). Besides the role of spectral modulation, the introduction of Gd3+ ions also exacerbates the thermal quenching effect. To increase its thermal performance, Al2O3 were introduced as the second phase and (Ce0.6%Y69.4%Gd30%)3Al5O12-z% Al2O3 (z=0, 10, 20, 30, 40) composite ceramics were fabricated by vacuum sintering. Their composite microstructures and phase structures were characterized. As the amount of Al2O3 increases from 0 wt% to 40 wt%, there is a noticeable improvement on the thermal conductivity. The thermal stability also increases and the operating temperature of ceramics reduced from 141.1 °C to 132.2 °C. Collaborating composite ceramics with InGaN blue chips, the steady-state luminous efficiency of 40 wt%-Al2O3 yellow LED reaches the highest value of 109.49 lm/W, which is 8.54 % higher than that of Al2O3-free sample. Additionally, scattering behavior and conversion efficiency of composite ceramics with different thicknesses were investigated.
The Predictive Value of Systemic Immune-inflammation Index on Bladder Recurrence on Upper Tract Urothelial Carcinoma Outcomes After Radical Nephroureterectomy
Authors: Chien Tsu-Ming , Li Ching-Chia , Lu Yen-Man , Chou Yii-Her , Chang Hsueh-Wei , Wu Wen-Jeng 
Published: August 2021

Abstract
Background: To assess the prognostic significance of pre-treatment lymphocyte-related systemic inflammatory biomarkers in upper tract urothelial carcinoma (UTUC) patients.Methods: This study included non-metastatic UTUC patients treated at our hospital between 2001 and 2013. The receiver operating characteristic curve was used to obtain the optimal neutrophile-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and systemic immune-inflammation index (SII). Multivariate logistic regression was performed to investigate the relationship between NLR, PLR, and SII and clinical pathologic characteristics. The Kaplan–Meier method was used to calculate the metastasis-free survival (MFS), cancer-specific survival (CSS), and bladder recurrence-free survival (BRFS) and the log-rank test to compare the survival rate.Results: Overall, 376 patients were included in the current study. Multivariate analysis revealed that an elevated SII was associated with advanced pathologic tumor stage, lymph node invasion, and adjuvant chemotherapy; high NLR was associated with older age, hemodialysis status, anemia, multifocal tumor, advanced pathologic tumor stage, and adjuvant chemotherapy; and high PLR was associated with older age, anemia, advanced pathologic tumor stage, and adjuvant chemotherapy. The Kaplan–Meier analysis indicated that patients exhibiting higher NLR, PLR, and SII showed significantly poor MFS and CSS rates. Only high SII showed significantly worse BRFS rates.Conclusions: The NLR, PLR, and SII were independent predictive factors for both MFS and CSS in UTUC patients. Among the factors, only elevated SII can predict bladder recurrence. Therefore, the patients might need close bladder monitoring during the follow-up.
High-Resolution Proteomics of Aedes Aegypti Salivary Glands Infected With DENV2, ZIKV and CHIKV Reveal Virus-Specific and Broad Antiviral Factors
Authors: Chowdhury Avisha , Modahl Cassandra Marie , Misse Dorothée , Kini R. Manjunatha , Pompon Julien 
Published: August 2021

Abstract
Arboviruses such as dengue (DENV), Zika (ZIKV) and chikungunya (CHIKV) viruses infect close to half a billion people per year, and are transmitted through Aedes aegypti bites. Infection-induced changes in mosquito salivary glands (SG) influence transmission by inducing immunity, which restricts virus replication, and by altering saliva composition, which influences skin infection. Here, we profiled SG responses to DENV2, ZIKV and CHIKV infections by using high-resolution quantitative proteomics. We identified 218 proteins related to immunity, blood-feeding or cellular machinery. We observed that 58, 27 and 29 proteins were regulated by DENV2, ZIKV and CHIKV infections, respectively. While the regulation patterns were mostly virus-specific, we determined the function of four uncharacterized proteins that were upregulated by all three viruses. We revealed the anti-ZIKV function of gamma-interferon responsive lysosomal thiol-like (GILT-like), the anti-CHIKV function of adenosine deaminase (ADA), the pro-ZIKV function of salivary gland surface protein 1 (SGS1) and the antiviral function against all three viruses of an uncharacterized protein we called salivary gland broad-spectrum antiviral protein (SGBAP). The comprehensive description of SG responses to three global pathogenic viruses and the identification of new restriction factors improves our understanding of the molecular mechanisms influencing transmission.
Search Characteristics and Reporting of Systematic Reviews of Animal Experiments: A Cross-Sectional Study
Authors: Zhao Bing , Chen Fei , Gao Qianqian , Mei Fan , Zhao Li , Yang Jinwei , Jiao Mingyue , Jiang Yanbiao , Ma Bin 
Published: August 2021

Abstract
BackgroundThe formulation and implementation of a comprehensive search strategy is the basis for ensuring the quality of a systematic review (SR) and/or meta-analysis (MA). All published SRs/MAs of animal experiments were comprehensively identified, to evaluate how each search strategy was formulated, and how the search process and reporting were implemented, in order to represent a reference and provide suggestions for the future development of search procedures and reporting guidelines for SRs/MAs of animal experiments which should, ultimately, allow translation of the results of animal experiments into clinical practice.Methods and FindingsPubMed, OVID-Embase, Biosis Previews, CNKI, CBM, Wanfang Data, and VIP databases were searched to identify the SRs/MAs of medical-related animal experiments. The literature was independently screened and basic information extracted. The search characteristics (including search methods and their reporting) of each included study were analyzed in accordance with pre-established evaluation criteria. A total of 813 animal experiment SRs/MAs published in 503 different journals from 52 countries and regions were included. PubMed, Embase, and Medline were the three most commonly searched English-language databases for animal experiment SRs/MAs, although in 28.8% (234/813), fewer than 3 databases were searched. A supplementary search had been conducted in only half (52.2%, 424/813%) of the studies. In terms of search reporting, only 47.4% (385/813) reported search methods and 31.6% (243/813) described the search strategy. Only 4.8% (39/813) of the animal experiments SRs/MAs reported the qualifications of the search personnel.ConclusionsThe quality of search methods and reporting of the search process for published SRs/MAs of animal experiments are inadequate and substandard. Therefore, the search process should be standardized in future to improve efficiency and ensure the integrity and universality of the search, thereby allowing the development of SR/MA search strategies and reporting guidelines for animal experiments, and ultimately promote improvements in the quality of animal experiment SRs/MAs.