bluuebunny/crossref_metadata_2025_split huggingface dataset:
Definitive chemoradiotherapy versus radical hysterectomy followed by tailored adjuvant therapy in women with early-stage cervical cancer presenting with pelvic lymph node metastasis on pretreatment evaluation: A propensity score matching analysis
Authors: Park Jongmoo , Kim Yeon-Joo , Song Mi Kyung , Nam Joo-Hyun , Park Sang-Yoon , Kim Young Seok , Kim Joo-Young 
Published: March 2020

Abstract
Objective To compare the oncologic outcomes between chemoradiotherapy and radical hysterectomy followed by tailored adjuvant therapy in patients with early cervical cancer presenting with pelvic lymph node metastasis. Methods We retrospectively analyzed the medical records of women with early cervical cancer presenting with positive pelvic nodes identified on pretreatment imaging assessment. Propensity score matching was employed to control for the heterogeneity between two groups according to confounding factors. Overall survival, disease-free survival, and pattern of failure were compared between the two groups in all patients as well as the matched cohort. Results A total 262 patients were identified; among them, 67 received definitive chemoradiotherapy (group A) and 195 received hysterectomy (group B). Adjuvant therapy was administered to 88.7% of group B. There were no significant differences between group A and group B regarding the 5-year overall survival rates (89.2% vs. 89.0%) as well as disease-free survival rates (80.6% vs. 82.7) in the entire cohort, and patterns of failure. Distant metastasis was the major failure pattern identified in groups A and B (16.4% and 15.4%). In multivariate analysis, non-squamous histology was significantly associated with poorer overall survival. Conclusion There were no significant differences in oncologic outcomes between definitive chemoradiotherapy and radical hysterectomy followed by tailored adjuvant therapy for early stage cervical cancer patients who had pelvic lymph node metastasis on pretreatment imaging assessment. Definitive chemoradiotherapy could avoid the complication of combined modality therapy without compromising oncologic outcomes.
Differences of psychological status of TMD patients, orthodontic patients and the general population during the COVID-19 epidemic: a cross-sectional study
Authors: Wu Yange , Xiong Xin , Fang Xinyi , Sun Wei , Yi Yating , Liu Jin , Wang Jun 
Published: March 2020

Abstract
Background

Confronting with the outbreak of COVID-19, this cross-sectional study aimed to assess the differences of psychological status of temporomandibular disorders patients, orthodontic patients and the general population in China during the epidemic.

Methods

An online anonymous questionnaire was developed in Chinese, including the individual background information, the perception of the epidemic, and level of anxiety and depression through Kessler Psychological Distress Scale (K10). The respondents were divided into Control group, ORTHO group and TMD group. Descriptive analysis and multiple linear regression modelling were performed.

Results

1241 valid questionnaires in total were collected, with 587 orthodontic patients and 220 TMD patients. The mean score of K10 was 18.65. When compared with the general population, TMD patients displayed statistically higher level of anxiety and depression (P<0.05), whereas orthodontic patients not (P>0.05). Multiple linear regression model also showed that age, gender, some concerns about the impact of epidemic were correlated with psychological status.

Conclusions

The overall mental health was severely worsened by the COVID-19 epidemic. TMD patients had higher level of psychological distress than orthodontic patients and the general population. Factors such as younger age, female, concerning about the isolation and psychological barriers and distrust were amongst the associations with a high level of psychological distress. Mental health care should be paid to patients when hospitals and clinics re-open after the COVID-19 epidemic, especially to patients with these relevant characteristics.
Drp1 widely, yet heterogeneously distributes in mice central nervous system
Authors: Luo Ting-Ting , Dai Chun-Qiu , Wang Jia-Qi , Wang Zheng-Mei , Yang Yi , Zhang Kun-Long , Wu Fei-Fei , Yang Yan-Ling , Wang Ya-Yun 
Published: March 2020

Abstract
Objectives: Drp1 is wildly expressed and plays a role in inducing mitochondrial fission process. It is confirmed that many diseases are associated with Drp1 and mitochondria. However, since the exact Drp1 is not specifically distributed, it is hard to determine the impact of anti-Drp1 molecules on human body and where the Drp1 inhibitor functions. Methods: We visualized distribution of Drp1 in different brain regions, and explicated the relationship between Drp1 and mitochondria. GAD67-GFP knock-in mice were utilized to detect the expression patterns of Drp1 on the GABAergic neurons. And we further analyzed Drp1 expression in human malignant glioma tissue. Results: Drp1 widely but heterogeneously distributed in central nervous system. Further observation indicated that Drp1 was highly and heterogeneously expressed in inhibitory neurons. Under transmission electron microscope, Drp1 distribution in dendrites was higher than other areas in neurons and only a small amount of Drp1 was located on mitochondria. In human malignant glioma, Drp1 fluorescence intensity increased from grade I-III, while grade IV showed the descending trend. Conclusion: In this study, we observed Drp1 widely yet heterogeneously distributed in central nervous system. Drp1 heterogeneous distribution may be related with the occurrence and development of neurologic disease. We hope that the relationship between Drp1 and mitochondria may give the therapeutic guidance.
The codon usage pattern of the novel coronavirus is drastically different from those of other pathogenic viruses
Authors: Wang Xiaolong 
Published: March 2020

Abstract
The current outbreak of a novel coronavirus (COVID-19) has caused thousands of deaths and has been declared to be a worldwide pandemic by the World Health Organization. There have been various disputes but the origin of COVID-19 is not clear. Here we analyzed the similarities of codon usage patterns between humans and pathogenic viruses, such as human immunodeficiency virus (HIV), highly pathogenic avian influenza (HPAI), SARS, MERS, and COVID-19. In HIVs, HPAIs, SARS, and MERS, codon usages are highly similar to that of humans; in contrast, the codon usage pattern of COVID-19 is drastically different from those of humans and other pathogenic viruses. Besides, coronaviruses have been evolving in two opposite directions: human-preferred codons are adopted to substitute less-preferred ones in SARS and MERS but are substituted by less-preferred ones in COVID-19. The unique codon usage pattern suggesting that COVID-19 was evolved in an intermediate host, in which its codon usage pattern becomes drastically different from that of bats or humans, and its pathogenicity is weakened compared with SARS ad MERS COVs. Finally, we appeal to international cooperation to eliminate the epidemic by cutting off the transmission routes among humans and to search for the origin and intermediate hosts of the novel coronavirus to prevent future animal-to-human transmission.
Mortality rate of infection with COVID-19 in Korea from the perspective of underlying disease
Authors: Kang Yun Jung 
Published: March 2020

Abstract
On December 31st, 2019 the China National Health Commission (NHC) reported that an unknown cause of pneumonia had been detected in Wuhan in Hubei province. On February 12th, the disease caused by novel coronavirus (2019-nCoV) has a formal name, COVID-19. On January 20th, 2020, the first case of COVID-19 was confirmed in Korea. Among the deaths, age-specific death rate was the highest among cases over 70’s, with underlying diseases in their circulatory system, such as myocardial infraction, cerebral infraction, arrythmia, and hypertension. Patients with underlying disease who are 70 years of age or older should recognize that there is a high possibility of developing a serious disease in case of viral infection and follow strict precautions.
Novel Coronavirus (COVID-19): Molecular Evolutionary Analysis, Global Burden and Possible Threat to Bangladesh
Authors: Uddin Md Bashir , Hasan Mahmudul , Harun-Al-Rashid Ahmed , Ahsan Md. Irtija , Imran Md. Abdus Shukur , Ahmed Syed Sayeem Uddin 
Published: March 2020

Abstract
Recently a new coronavirus strain, COVID-19 has emerged in Wuhan City, China which cause disease and in many cases deaths to humans. Considering its severity a number of works are working on it and full genomic sequences has already released in the last few weeks to understand the evolutionary origin and molecular characteristics of this virus. Based on currently available genomic information a phylogenetic tree was constructed from four types of representative viral proteins (Spike, Membrane, Envelope and Nucleoproetin) of COVID-19, HCoV-229E, HCoV-OC43, SARS-CoV, HCoV-NL63, HKU1, MERS-CoV, HKU4, HKU5 and BufCoV-HKU26 clearly demonstrated that the ancestral origin and distant evolutionary relation of newly epidemic novel coronavirus (COVID-19). It had been found that COVID-19 was evolutionary related to SARS-CoV. It was also found that COVID-19 proteins were almost more than ninety (90%) similar and identical with SARS-CoV proteins. The cross-checked conservancy analysis of COVID-19 antigenic epitopes showed significant conservancy with SARS-CoV proteins. VaxiJen server reveal almost 100% immunogenic potential of four viral proteins with COVID-19. In this article, we present an effort on molecular evolutionary analysis, temperature comparison and compile and analyze epidemiological outbreak information on the 2019 novel coronavirus based on the several open datasets on COVID-19 (SARS-COV-2) and possible threat to Bangladesh.Authors Md Bashir Uddin and Mahmudul Hasan contributed equally to this work
Simultaneous Detection of 2019 Novel Coronavirus and Influenza Virus by Double Fluorescent RT-PCR
Authors: zhang shasha 
Published: March 2020

Abstract
this paper introduces a method for simultaneous detection of 2019 novel coronavirus(2019-nCoV) and influenza virus by dual fluorescent RT-PCR, providing some references for the current clinical first-line practice against the epidemic. More than 1500 samples of nasopharyngeal swabs, sputum and anal swabs were collected. Nucleic acid detection kits from two manufacturers of novel coronavirus and type A/B influenza virus were selected for the detection. Carboxyfluorescein (FAM) and green fluorescent protein (VIC) labeled probes were used to achieve simultaneous detection of the four gene targets using a double fluorescent RT-PCR reaction system. According to the analysis for the results of nucleic acid detection of existing samples, there is no cross infection between 2019 novel coronavirus and type A/B influenza virus. The Ct value of novel coronavirus nucleic acid in anal swab>Ct value of sputum > Ct value of nasopharyngeal swab in the same patient. Conclusion: A method for rapid and simultaneous detection of novel coronavirus and influenza virus by dual fluorescent RT-PCR was established to improve the detection efficiency and reduce the cost, which could be used for rapid and emergent detection of 2019 novel coronavirus and type A/B influenza virus.
Association of Carotid and Intracranial Stenosis with Alzheimer’s Disease Biomarkers
Authors: Kang Koung Mi , Byun Min Soo , Lee Jun Ho , Yi Dahyun , Choi Hye Jeong , Lee Eunjung , Lee Younghwa , Lee Jun-Young , Kim Yu Kyeong , Sohn Bo Kyung , Sohn Chul-Ho , Lee Dong Young 
Published: March 2020

Abstract
Background To clarify whether atherosclerosis of the carotid and intracranial arteries is related to Alzheimer’s disease (AD) pathology in vivo, we investigated the associations of carotid and intracranial artery stenosis with cerebral beta-amyloid (Aβ) deposition and neurodegeneration in middle- and old-aged individuals. Given the differential progression of Aβ deposition and neurodegeneration across clinical stages of AD, we focused separately on cognitively normal (CN) and cognitively impaired (CI) groups.Methods A total of 281 CN and 199 CI (mild cognitive impairment and AD dementia) subjects underwent comprehensive clinical assessment, [11C] Pittsburgh Compound B positron emission tomography, and magnetic resonance (MR) imaging including MR angiography. We evaluated extracranial carotid and intracranial arteries for the overall presence, severity (i.e. number and degree of narrowing) and location of stenosis.Results We found no associations between carotid and intracranial artery stenosis and cerebral Aβ burden in either CN or CI group. In terms of AD-related neurodegeneration, exploratory univariate analyses showed associations between the presence and severity of stenosis and neurodegeneration biomarkers of AD (i.e. reduced hippocampal volume [HV] and cortical thickness in the AD-signature regions) in both CN and CI groups. In confirmatory multivariate analyses controlling for demographic covariates and diagnosis, the association between number of stenotic intracranial arteries ≥ 2 and reduced HV in the CI group remained significant.Conclusions Neither carotid nor intracranial artery stenosis appears to be associated with brain Aβ burden, while intracranial artery stenosis is related to amyloid-independent neurodegeneration, particularly hippocampal atrophy. These observations support the importance of proper management of intracranial artery stenosis for delaying the progression of AD neurodegeneration and related cognitive decline.
Breastfeeding cessation in the era of Elimination of Mother to Child Transmission of HIV in Uganda: a retrospective cohort study
Authors: Ngbapai Jackslina Gaaniri , Izudi Jonathan , Okoboi Stephen 
Published: March 2020

Abstract
Background

To eliminate mother to child transmission of HIV (EMTCT), the World Health Organization (WHO) recommends that breastfeeding should cease at one year for infants born to HIV infected mothers but data are limited. We examined the magnitude and factors associated with breastfeeding cessation at one year among HIV infected postpartum mothers at Ndejje Health Center IV, a large peri-urban health facility in Uganda.

Methods

We conducted a retrospective cohort study involving all HIV infected postpartum mothers enrolled on EMTCT program for at least 12 months, between June 2014 and June 2018, abstracted data from EMTCT registers, held four focused group discussions with HIV infected postpartum mothers and four key informant interviews with healthcare providers. Breastfeeding cessation was defined as the proportion of HIV infected postpartum mothers who stopped breastfeeding an HIV exposed infant (HEI) at one year. We summarized quantitative data descriptively, tested differences in outcome with the Chi-square and t-tests, and established factors independently associated with breastfeeding cessation using modified Poisson regression analysis at 5% statistical significance level, and thematically analyzed qualitative data to enrich and triangulate the quantitative results.

Results

Of 235 HIV infected postpartum mothers, 150 (63.8%) ceased breastfeeding at one year and this was independently associated with the HEI being female than male (Adjusted risk ratio (aRR): 1.25, 95% confidence interval (CI), 1.04, 1.50), the mother being multiparous than primparous (aRR, 1.26; 95% CI, 1.04-1.53), and breastfeeding initiation on same day as birth (aRR, 0.06; 95% CI, 0.01-0.41). Qualitative results showed that maternal demands of work, high demand for breastfeeding among male HEIs, and low breastfeeding interest among primarous mothers were reasons for cessation of breastfeeding before one year.

Conclusion

Breastfeeding cessation at one year among HIV infected postpartum mothers was suboptimal. This might increase the risk of mother to child transmissions of HIV. Breastfeeding cessation at one year was more likely when the HEI was female than male and when the HIV infected postpartum mother was multiparous than primparous, but less likely when breastfeeding was initiated on same-day as birth. Interventions to enhance breastfeeding cessation at one year should target these areas.
Burn Injuries Related to E-Cigarettes Reported to Poison Control Centers in the United States, 2010-2019
Authors: WANG BAOGUANG , Liu Sherry T. , Rostron Brian , Hayslett Camille 
Published: March 2020

Abstract
Background United States (U.S.) national data indicate that 2,035 individuals with burn injuries from e-cigarette explosion presented to U.S. hospital emergency departments (EDs) in 2015-2017. This national estimate is valuable for understanding the burden of burn injuries from e-cigarette explosion among individuals who presented to EDs. However, little is known about individuals who experienced e-cigarette-related burns but may not present to EDs or health care facilities. Findings We analyzed data from the National Poison Data System (NPDS) to describe the frequency and characteristics of e-cigarette-related burn cases in the U.S. in 2010-2019. NPDS contains information collected during telephone calls to poison control centers (PCCs) across the U.S., including e-cigarette-related burns and other unintended events. During 2010-2019, 19,306 exposure cases involving e-cigarettes were documented in NPDS. Of those, 69 were burn cases. The number of burn cases increased from one in 2011 to a peak of 26 in 2016, then decreased to three in 2019. The majority of the burn cases occurred among young adults aged 18-24 years (29.0%; n=20) and adults aged 25 years or older (43.5%; n=30). Of the 69 burn cases, 5.8% (n=4) were admitted to a hospital; 65.2% (n=45) were treated, evaluated, and released; 15.9% (n=11) were not referred to a health care facility (HCF); 4.4% (n=3) refused referral or did not arrive at an HCF; and 8.7% (n=6) were lost to follow-up or left against medical advice. Nearly one-third (30.4%; n=21) of the cases had a minor effect (i.e., symptoms were self-limited), 47.8% (n=33) had a moderate effect (symptoms were more pronounced and prolonged than in minor cases, but not life-threatening), and 2.9% (n=2) had a major effect (symptoms were life-threatening). Conclusions Approximately one-fifth of e-cigarette-related burn cases reported to PCCs were not referred to or did not arrive at an HCF. Some burn cases had serious medical outcomes. The burn cases mostly affected young adults and adults aged 25 years or older. The number of burn cases observed in this study represents a small portion of e-cigarette-related burn cases but can serve as a complementary data source to traditional injury surveillance systems.
Structural stability, hardness, fracture toughness and melting points of Ta1-xHfxC and Ta1-xZrxC ceramics from first-principles
Authors: Zhang Shuoxin , Liu Shiyu , Yan Dali , Yu Qian , Ren Haitao , Yu Bin , Li Dejun 
Published: March 2020

Abstract
We systematic investigated the influence of substitution of Hf and Zr atoms for Ta atoms in TaC using first-principles supercell (SC) method and virtual crystal approximation (VCA) methods, including the impurity formation energy, lattice constant, volume, elastic constants, elastic moduli, melting points, fracture toughness and density of states of the Ta 1-x Hfx C and Ta1-x Zrx C ceramics in the whole range of content 0≤ x ≤1. Our calculated results show that the stability of Ta 1-x Hf x C and Ta 1-x Zrx C increases with the increase of Hf and Zr content, and Ta1-x Zrx C is more stable than Ta1-x Hfx C at the same content of Hf and Zr. The lattice constants and volumes dilate with the increase of Hf and Zr content. Furthermore, Ta1-x Hfx C and Ta1-x Zrx C carbides are mechanically stable and brittle. The bulk modulus of Ta1-x Hfx C and Ta1-x Zrx C decreases with the increasing content of Hf and Zr. Moreover, the hardness, fracture toughness, and melting point of Ta1-x Hf x C and Ta1-x Zrx C solid solutions have the peak. In particular, Ta0.8Hf0.2C has the highest hardness, largest fracture toughness and highest melting temperature.
Diagnostic and prognostic significance of dysregulated expression of circular RNAs in osteosarcoma
Authors: Zhang Chenghao , He Jieyu , Qi Lin , Duan Zhixi , Wan Lu , Wang Wanchun , Tu Chao , Li Zhihong 
Published: March 2020

Abstract
Background Circular RNAs (circRNAs) have emerged as pivotal regulators in osteosarcoma tumorigenesis and progression, but their prognostic and diagnostic significance remain unclear. Herein, we aimed to perform an updated meta-analysis to explore the clinical, diagnostic and prognostic values of circRNAs in osteosarcoma. Methods Several databases, including PubMed, Web of Science, EMBASE, Scopus and Cochrane Library, were systematically searched up to Mar 10, 2020. Eligible studies regarding the relationship between circRNAs levels and clinicopathological, diagnostic and prognostic values in osteosarcoma patients were included in this study. Pooled odds ratios (ORs) with corresponding 95% confidence intervals (CIs) were used to measure clinical characteristics, while hazard ratios (HRs) with 95% CIs were adopted to assess overall survival (OS) and disease-free survival (DFS). Results Overall, 26 relevant studies involving 1,652 patients with osteosarcoma were enrolled, with eighteen studies on clinicopathological parameters, ten on diagnosis and eighteen on prognosis. For clinical parameters, overexpression of oncogenic circRNAs was intimately correlated with larger tumor size (P <0.00001), advanced Enneking stage (P <0.00001), poor differentiation (P =0.0001), and distant metastasis (DM) (P <0.00001). In contrast, the downregulated circRNAs showed negative correlation with Enneking stage (P=0.002) and DM (P<0.0001). For the diagnostic values, the summary area under the curve (AUC) of circRNA for the discriminative efficacy between osteosarcoma patients and non-cancer counterparts was estimated to be 0.86 (95% CI: 0.83-0.89), with a weighted sensitivity of 0.80 (95% CI: 0.74-0.84), specificity of 0.80 (95%: 0.75-0.84), and diagnostic odds ratio (DOR) of 15.48 (10.85-22.10), respectively. For the prognostic significance, oncogenic circRNAs had poor OS (HR=1.92, 95% CI: 1.68-2.19) and DFS (HR=2.65, 95% CI: 2.02-3.49), while elevated expression of tumor-suppressor circRNAs were closely related to longer OS (HR=0.44, 95% CI: 0.28-0.69). Conclusions Taken together, our study showed that aberrantly expressed circRNA signatures could serve as potential predictive indicators in diagnosis and prognosis in patients with osteosarcoma.