bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dysbiosis of saliva microbiome in patients with oral lichen planus
Authors: Yu FeiYan , Wang QianQian , Li Miao , Cheng Ya-Hsin , Cheng Yi-Shing Lisa , Zhou Yu , Yang Xi , Zhang Fang , Ge XueJun , Zhao Bin , Ren XiuYun 
Published: February 2020

Abstract
Background : Oral microbiota is not only important for maintaining oral health but also plays a role in oral diseases. However, studies regarding microbiome changes in oral lichen planus(OLP)are very limited. Therefore, the purpose of this study was to identify the characteristic microbial profile in the saliva of OLP patients, with or without erosive lesions, and compare that with recurrent aphthous ulcer (RAU), a common oral immunological disorder that also shows multiple erosive/ulcerative lesions. Methods : Whole saliva samples were collected from 20 patients with OLP (10 each for erosive (E) and non-erosive (NE) groups), 10 patients with RAU (U group), and 10 healthy controls (C). DNA was extracted from the saliva samples, and the 16S rDNA gene V4 hypervariable region was analyzed using Illumina sequencing. Results were assessed with alpha- and beta-diversity, linear discriminant analysis (LDA) effect size, and the data was analyzed by Spearman’s rank correlation,Wilcoxon and Kruskal test. Results: We obtained 4949 operational taxonomic units from the V4 region in all saliva samples. Community composition analysis showed a clear decreased relative abundance of genera Streptococcus and Sphingomonas in saliva from RAU patients when compared to the other three groups. Relative abundance of Lautropia and Gemella were higher in E group,whereas relative abundance of Haemophilus and Neisseria were higher in NE group when compared to C group. Abiotrophia and Oribacterium were higher in OLP (combining E and NE groups), while Eikenella and Aggregatibacter were lower when compared to C group. There was statistically significance in α-diversity between E and RAU groups( p <0.05). Significant differences in β-diversity were detected in bacteria between E and C; NE and C; as well as E and NE groups. Conclusion： We found that salivary microbiome in OLP was significantly different from that found in RAU; and these changes may be related to the underlying disease process rather than presence of ulcerative/erosive lesions clinically. In addition, our findings in bacterial relative abundance in OLP were significantly different from the previously reported findings, which points to the need for further research in salivary microbiome of OLP.
Different effects of Wnt/β-catenin activation and PTH activation in adult and aged male mice metaphyseal fracture healing
Authors: Liu Daocheng , Qin Hao , Yang Jiazhi , Yang Lei , He Sihao , Chen Sixu , Bao Quanwei , Zhao Yufeng , zong zhaowen 
Published: February 2020

Abstract
Background: Fractures in older men are not uncommon and need to be healed as soon as possible to avoid related complications. Anti-osteoporotic drugs targeting Wnt/β-catenin and PTH (parathyroid hormone) to promote fracture healing have become an important direction in recent years. The study is to observe whether there is a difference in adult and aged situations by activating two signal paths.
Methods: A single cortical hole with a diameter of 0.6 mm was made in the femoral metaphysis of Catnb lox(ex3) mice and wild-type mice. The fracture healing effects of CA (Wnt/β-catenin activation) and PTH (activated by PTH (1–34) injections) were assessed by X-ray and CT imaging on days 7, 14, and 21 after fracture. The mRNA levels of β-catenin, PTH1R( Parathyroid hormone 1 receptor ), and RUNX2(Runt-related transcription factor 2) in the fracture defect area were detected using RT-PCR. Angiogenesis and osteoblasts were observed by immunohistochemistry and osteoclasts were observed by TRAP (Tartrate-resistant Acid Phosphatase).
Result: Adult CA mice and adult PTH mice showed slightly better fracture healing than adult wild-type (WT) mice, but there was no statistical difference. Aged CA mice showed better promotion of angiogenesis and osteoblasts and better fracture healing than aged PTH mice.
Conclusion: The application of Wnt/β-catenin signaling pathway drugs for fracture healing in elderly patients may bring better early effects than PTH signaling pathway drugs, but the long-term effects need to be observed.
Synthesis and biological evaluation of 2-(4-methylsulfonyl phenyl) indole derivatives: Multi-target compounds with dual antimicrobial and anti-inflammatory activities
Authors: Shaker Ahmed , Abdelall Eman K. A. , Abdellatif Khaled R. A. , Abdel-Rahman Hamdy M. 
Published: February 2020

Abstract
Three series of 2-(4-methylsulfonylphenyl) indole derivatives have been designed and synthesized. The synthesized compounds were evaluated for their antimicrobial, COX inhibitory and anti-inflammatory activities. Compound 7g was identified to be the most potent antibacterial candidate against strains of MRSA , E. coli, K. pneumoniae, P. aeruginosa, and A. baumannii , respectively with safe therapeutic dose. Compounds 7a-k, 8a-c and 9a-c showed good anti-inflammatory activity with high selectivity toward COX-2 in comparison with reference drugs indomethacin and celecoxib. Compounds 9a-c were found to release moderate amounts of NO to decrease the side effects associated with selective COX-2 inhibitors. A molecular modeling study for compounds 7b, 7h, and 7i into COX-2 active site correlated with results of in vitro COX-2 inhibition assays.
Problematic Internet Use in Children and Adolescents: Associations with psychiatric disorders and impairment
Authors: Restrepo Anita , Scheininger Tohar , Clucas Jon , Alexander Lindsay , Salum Giovanni , Georgiades Kathy , Paksarian Diana , Merikangas Kathleen , Milham Michael 
Published: February 2020

Abstract
Background: Problematic internet use (PIU) is an increasingly worrisome issue, as youth population studies are establishing links with internalizing and externalizing problems. There is a need for a better understanding of psychiatric diagnostic profiles associated with this issue, as well as its unique contributions to impairment. Here, we leveraged the ongoing, large-scale Child Mind Institute Healthy Brain Network, a transdiagnostic self-referred, community sample of children and adolescents (ages 5-21), to examine the associations between PIU and psychopathology, general impairment, physical health and sleep disturbances.
Methods: A total sample of 564 (190 female) participants between the ages of 7-15 (mean = 10.80, SD = 2.16), along with their parents/guardians, completed diagnostic interviews with clinicians, answered a wide range of self-report (SR) and parent-report (PR) questionnaires, including the Internet Addiction Test (IAT) and underwent physical testing as part of the Healthy Brain Network protocol.
Results: PIU was positively associated with depressive disorders (SR: aOR = 2.43, CI: 1.22-4.74, p = .01; PR: aOR = 2.56, CI: 1.31-5.05, p = .01), the combined presentation of ADHD (SR: aOR = 1.91, CI: 1.14-3.22, p = .01; PR: n.s.), Autism Spectrum Disorder (SR: n.s.; PR: aOR = 2.24, CI: 1.34-3.73, p < .001), greater levels of impairment (SR: Standardized Beta = 4.63, CI: 3.06-6.20, p < .001; PR: Standardized Beta = 5.05, CI: 3.67-6.42, p < .001) and increased sleep disturbances (SR: Standardized Beta = 3.15, CI: 0.71-5.59, p = .01; PR: Standardized Beta = 3.55, CI: 1.34-5.75, p < .001), even when accounting for demographic covariates and psychiatric comorbidity.
Conclusions: The association between PIU and psychopathology, as well as its impact on impairment and sleep disturbances, highlight the urgent need to gain an understanding of mechanisms in order to inform public health recommendations on internet use in U.S. youth.
Expert Curation of the Human and Mouse Olfactory Receptor Gene Repertoires Identifies Conserved Coding Regions Split Across Two Exons.
Authors: Barnes If Habib Ahmed , Ibarra-Soria Ximena , Fitzgerald Stephen , Gonzalez Jose Manuel , Davidson Claire , Hardy Matthew Philip , Manthravadi Deepa , Gerven Laura Van , Jorissen Mark , Zeng Zhen , Khan Mona , Mombaerts Peter , Harrow Jennifer , Logan Darren William , Frankish Adam 
Published: February 2020

Abstract
Background Olfactory receptor (OR) genes are the largest multi-gene family in the mammalian genome, with 874 in human and 1483 loci in mouse (including pseudogenes). The expansion of the OR gene repertoire has occurred through numerous duplication events followed by diversification, resulting in a large number of highly similar paralogous genes. These characteristics have made the annotation of the complete OR gene repertoire a complex task. Most OR genes have been predicted in silico and are typically annotated as intronless coding sequences. Results Here we have developed an expert curation pipeline to analyse and annotate every OR gene in the human and mouse reference genomes. By combining evidence from structural features, evolutionary conservation and experimental data, we have unified the annotation of these gene families, and have systematically determined the protein-coding potential of each locus. We have defined the non-coding regions of many OR genes, enabling us to generate full-length transcript models. We found that 13 human and 41 mouse OR loci have coding sequences that are split across two exons. These split OR genes are conserved across mammals, and are expressed at the same level as protein-coding OR genes with an intronless coding region. Our findings challenge the long-standing and widespread notion that the coding region of a vertebrate OR gene is contained within a single exon. Conclusions This work provides the most comprehensive curation effort of the human and mouse OR gene repertoires to date. The complete annotation has been integrated into the GENCODE reference gene set, for immediate availability to the research community.
Does the medical insurance system really achieved the effect of poverty alleviation for the middle-aged and elderly people in China?Characteristics of vulnerable groups and failure links.
Authors: Ma Meiyan , Li Ye , Wang Nianshi , Wu Qunhong , Shan Linghan , Jiao Mingli , Fu Xuelian , Li Heng , Sun Tao , Yi Bin , Tian Wanxin , Xia Qi , Shi Baoguo , Hao Yanhua , Yin Hui , Ning Ning , Gao Lijun , Liang Libo , Wang Jiahui 
Published: February 2020

Abstract
Objective ： We examined the physiological, household, and spatial agglomeration characteristics of the health poverty population in China. We identified weak links that affect the implementation of the medical insurance and further improve its effectiveness for health poverty alleviation. Methods: A national representative sample from the 2015 China Health and Pension Tracking Survey (CHARLS) was analyzed. The WHO recommended method was adopted to calculate catastrophic health expenditure (CHE) and impoverishment by medical expenses (IME). We created a binary indicator for IME as the outcome variable and applied the treatment-effect model to analyze the determinants of IME. Results ： The rate of IME was 7.2% of the overall population, compared to 20.3% of the sample households trapped in CHE. The rate of IME enrolled in insurance schemes was 7.4% higher than that of uninsured families (4.8%). Economic level, living area, family size, age of household head, having hospitalized members, and participating in insurance were statistically significant for the rate of IME. Conclusion ： The original poverty -promoting policies has not reached the maximum point of convergence with China’s current demand for health. The overlapped health vulnerabilities exacerbated the risk of poverty among the elderly and households with high health needs and utilization. In addition, the medical insurance schemes have proven to be insufficient for protection against economic burden of poor households. So, special health needs, age, and household capacity to pay should be comprehensively considered while strengthening the connection between the disease insurance scheme with supplementary insurance. Keywords: medical insurance, poverty alleviation, healthy poverty, catastrophic health expenditure, impoverishment by medical expenses.
Rapid shifts in the age-specific burden of malaria following successful control interventions in four regions of Uganda
Authors: Kigozi Simon P. , Kigozi Ruth N. , Epstein Adrienne , Mpimbaza Arthur , Sserwanga Asadu , Yeka Adoke , Nankabirwa Joaniter I. , Halliday Katherine , Pullan Rachel L , Rutazaana Damian , Sebuguzi Catherine M , Opigo Jimmy , Kamya Moses R , Staedke Sarah G , Dorsey Grant , Greenhouse Bryan , Rodriguez-Barraquer Isabel 
Published: February 2020

Abstract
Background: Malaria control using long-lasting insecticidal nets (LLINs) and indoor residual spraying of insecticide (IRS) has been associated with reduced transmission throughout Africa. However, the impact of transmission reduction on the age distribution of malaria cases remains unclear.
Methods: Over a 10-year period (January, 2009 to July, 2018), outpatient surveillance data from four health facilities in Uganda were used to estimate the impact of control interventions on temporal changes in the age distribution of malaria cases using multinomial regression. Interventions included mass distribution of LLINs at all sites and IRS at two sites.
Results: Overall, 896,550 patient visits were included in the study; 211,632 aged <5 years, 171,166 aged 5-15 years, and 513,752 >15 years. Over time, the age distribution of patients not suspected of malaria and those malaria negative either declined or remained the same across all sites. In contrast, the age distribution of suspected and confirmed malaria cases increased across all four sites. In the two LLINs-only sites, the proportion of malaria cases in <5 years decreased from 31% to 16% and 35% to 25%, respectively. In the two sites receiving LLINs plus IRS, these proportions decreased from 58% to 30% and 64% to 47%, respectively. Similarly, in the LLINs-only sites, the proportion of malaria cases >15 years increased from 40% to 61% and 29% to 39%, respectively. In the sites receiving LLINs plus IRS, these proportions increased from 19% to 44% and 18% to 31%, respectively.
Discussion: These findings demonstrate a shift in the burden of malaria from younger to older individuals following implementation of successful control interventions, which has important implications for malaria prevention, surveillance, case management and control strategies.
Prdx1 Promotes the Loss of Primary Cilia in Esophageal Squamous Cell Carcinoma
Authors: Chen Qiongzhen , Li Jinmeng , Yang Xiaoning , Ma Junfeng , Gong Fanghua , Liu Yu 
Published: February 2020

Abstract
Background: Loss of primary cilia is frequently observed in tumor cells, suggesting that the absence of this organelle may promote tumorigenesis through aberrant signal transduction, the inability to exit the cell cycle, and promotion of tumor cell invasion. Primary cilia loss also occurs in esophageal squamous cell carcinoma (ESCC) cells, but the molecular mechanisms that explain how ESCC cells lose primary cilia remain poorly understood.

Methods: Inhibiting the expression of Prdx1 in the ESCC cells to detect the up-regulated genes related to cilium regeneration and down-regulated genes related to cilium disassembly by Gene chip. And, mice and cell experiments were carried to confirm the role of the HEF1-Aurora A-HDAC6 signaling axis in ESCC.

Results: In this study, we found that silencing Peroxiredoxin 1 (Prdx1) restores primary cilia formation, and over-expressing Prdx1 induces primary cilia loss in ESCC cells. We also showed that the expression of Prdx1 regulates the action of the HEF1-Aurora A-HDAC6 signaling axis to promote the disassembly of primary cilia, and suppression of Prdx1 results in decreased tumor formation and tumor mass volume in vivo.

Conclusions: These results suggest that Prdx1 is a novel regulator of primary cilia formation in ESCC cells.
Cholecystectomy outcomes after endoscopic sphincterotomy in patients with choledocholithiasis: A meta-analysis
Authors: Xu Jie , Yang Chuang 
Published: February 2020

Abstract
Background Endoscopic sphincterotomy is the standard treatment for common bile duct stones.There is different evidence considering complications specifically biliary pancreatitis and cholangitis with the use of cholecystectomy after endoscopic sphincterotomy.The purpose of this article is to compare the positive cholecystectomy after endoscopic treatment of common bile duct stones, whether the incidence of recurrent pancreatitis cholangitis is reduced, especially in high-risk patients. Methods We searched Pubmed(1990-2019)、Embase(1990-2019)和 Cochrane(1990-2019)database for trials comparing the 2 strategies for gallstones after ES.A related article on the removal of gallbladder after endoscopic sphincterotomy was collected,followed by analysis of each group using RevMan. Results We have adopted a total of 8 studies, including 7 randomized controlled trials and 1 retrospective study. A total of 12718 patients were included in the study, 4922 in the early cholecystectomy group, and 7795 in the gallbladder in situ group.During the follow-up period, 41 patients had pancreatitis after endoscopic sphincterotomy in the cholecystectomy group, and 177 patients in the wait-and-see group. The incidence of pancreatitis in the gallbladder in situ group was significantly reduced(RR 0.38, 95%CI 0.27 to 0.53, P < 0.00001,I 2 =0%).The incidence of cholangitis and jaundice in the removal of the gallbladder group was also less than that in the preserved gallbladder group(RR 0.31, 95%CI 0.26 to 0.38, P < 0.00001,I 2 =0%).There was no significant difference in mortality between the two groups(RR 0.73, 95%CI 0.52 to 1.02, P =0.07,I 2 =14%).There is a significant difference in cholecystitis or biliary colic(RR 0.25, 95% CI 0.21 to 0.29, P < 0.00001,I 2 =28%). Conclusions Early endoscopic cholecystectomy after removal of common bile duct stones can effectively reduce biliary complications such as recurrent pancreatitis, cholangitis and cholecystitis. This is still true for high-risk patients, and has no significant effect on the mortality of patients. After ES,laparoscopic cholecystectomy should be recommended.
Increased PD-1-positive macrophages in the tissue of gastric cancer are closely associated with poor prognosis in gastric cancer patients.
Authors: Kono Yusuke , Saito Hiroaki , Miyauchi Wataru , Shimizu Shota , Murakami Yuki , Shishido Yuji , Miyatani Kozo , Matsunaga Tomoyuki , Fukumoto Yoji , Nakayama Yuji , Sakurai Chiye , Hatsuzawa Kiyotaka , Fujiwara Yoshiyuki 
Published: February 2020

Abstract
Background: Programmed cell death 1 (PD-1) is one of the immune checkpoint molecules that negatively regulate the function of T cells. Although recent studies indicate that PD-1 is also expressed on other immune cells besides T cells, its role remains unclear. This study aims to evaluate PD-1 expression on macrophages and examine its effect on anti-tumor immunity in gastric cancer (GC) patients.
Methods : The frequency of PD-1 + macrophages obtained from GC tissue was determined by multicolor flow cytometry (n = 15). Double immunohistochemistry staining of PD-1 and CD68 was also performed to evaluate the correlations among the frequency of PD-1 + macrophages, clinicopathological characteristicus, and prognosis in GC patients (n = 102).
Results: The frequency of PD-1 + macrophages was significantly higher in GC tissue than in non-tumor gastric tissue. The phagocytotic activity of PD-1 + macrophages was severely impaired compared with that of PD-1 - macrophages. The 5-year disease specific survival rates in patients with PD-1 + macrophage Low (the frequency of PD-1 + macrophages; < 0.85%) and those with PD-1 + macrophage High (the frequency of PD-1 + macrophages; ≥ 0.85%) were 85.9% and 65.8%, respectively ( P = 0.008). Finally, multivariate analysis showed the frequency of PD-1 + macrophage to be an independent prognostic factor.
Conclusions: The function of PD-1 + macrophage was severely impaired and increased frequency of PD-1 + macrophage worsened the prognosis of GC patients. PD-1–PD-L1 therapies may function through a direct effect on macrophages in GC.
Antibiotic treatment regimens for bone infection after debridement ： a study of 902 cases
Authors: Wang Xiaohua , Fang Li , Wang Shulin , Chen Yueqi , Ma Huan , Zhao Hongwen , Xie Zhao 
Published: February 2020

Abstract
Purpose: Our aim was to investigate the clinical efficacy and complications of antibiotics treatment duration for the patients of bone infection.
Methods: We retrospectively analyzed the patients with bone infection admitted to our hospital between March 2013 and October 2018. The surgical debridement was performed and the patients were divided into three groups: IV group (Intravenous antibiotics for 2 weeks); Oral group (Intravenous antibiotics for 2 weeks followed by oral antibiotics for 4 weeks); Rifampicin group (Intravenous antibiotics for 2 weeks followed by oral antibiotics plus rifampicin for 4 weeks). The infection control rate and complications were compared.
Results ： A total of 902 patients were enrolled, the infection sites included 509 tibias, 228 femurs, 32 humeri, 23 radii and ulnae, 40 calcanei, 23 multiple-site infections and the other sites 47 cases. After at least 6 months of follow-up, 148 (16.4%) patients had recurrence of infection. The recurrence rate of IV group was 17.9%, which was no significant higher than that of Oral group (10.1%) or Rifampicin group (10.5%). The abnormal rate of Glutamic-pyruvic transaminase(ALT) in IV group was 15.1%, which was lower than that of Oral group (18.0%) and Rifampicin group (27.4%), P=0.026. The positive rates of proteinuria in the three groups were 3.2%, 4.5%, and 9.3%, respectively, P=0.020.
Conclusion: After debridement of bone infection, the additional oral antibiotic treatment may increase the damage of liver and kidney, and can not significantly reduce the infection recurrence rate. Therefore, it is recommended to adopt short-term systemic antibiotic treatment after debridement.
αβ-Dehydrocurvularin isolated from the fungus Aspergillus welwitschiae effectively inhibited the behaviour and development of the root-knot nematode Meloidogyne graminicola in rice roots
Authors: xiang Chao , Liu Ying , Liu Shi-Ming , Huang Ya-Fei , Kong Ling-An , Peng Huan , Liu Mao-Yan , Liu Jing , Peng De-Liang , Huang Wen-Kun 
Published: February 2020

Abstract
Background: The root-knot nematode Meloidogyne graminicola has become a serious threat to rice production as a result of the cultivation changes from transplanting to direct seeding. The nematicidal activity of Aspergillus welwitschiae have been investigated in vitro , and the disease control efficacy of the active compound has been evaluated under greenhouse and field conditions.
Results: The active compound αβ-dehydrocurvularin (αβ-DC), isolated by nematicidal assay-directed fractionation, showed significant nematicidal activity against M. graminicola , with an median lethal concentration (LC 50 ) value of 122.2 μg mL −1 . αβ-DC effectively decreased the attraction of rice roots to nematodes and the infection of nematodes and also suppressed the development of nematodes under greenhouse conditions. Moreover, αβ-DC efficiently reduced the root gall index under field conditions.
Conclusion: To our knowledge, this is the first report to describe the nematicidal activity of αβ-DC against M. graminicola . The results obtained under greenhouse and field conditions provide a basis for developing commercial formulations from αβ-DC to control M. graminicola in the future.
Keywords: Meloidogyne graminicola ; αβ-dehydrocurvularin; nematicidal activity; attractiveness; development; behaviour