bluuebunny/crossref_metadata_2025_split huggingface dataset:
Education-related variation in coronary procedure rates and the contribution of private health care in Australia: a prospective cohort study
Authors: Hughes Veronica , Paige Ellie , Welsh Jennifer , Joshy Grace , Banks Emily , Korda Rosemary J. 
Published: August 2020

Abstract
Background
Contemporary Australian evidence on socioeconomic variation in secondary cardiovascular disease (CVD) care, a possible contributor to inequalities in cardiovascular disease outcomes, is lacking. This study examined the relationship between education, an individual-level indicator of socioeconomic position, and receipt of angiography and revascularisation procedures following incident hospitalisation for acute myocardial infarction (AMI) or angina, and the role of private care in this relationship.

Methods
Participants aged ≥45 from the New South Wales population-based 45 and Up Study with no history of prior ischaemic heart disease hospitalised for AMI or angina were followed for receipt of angiography or revascularisation within 30 days of hospital admission, ascertained through linked hospital records. Education attainment, measured on baseline survey, was categorised as low (no school certificate/qualifications), intermediate (school certificate/trade/apprenticeship/diploma) and high (university degree). Cox regression estimated the association (hazard ratios [HRs]) between education and coronary procedure receipt, adjusting for demographic and health-related factors, and testing for linear trend. Private health insurance was investigated as a mediating variable.

Results
Among 4454 patients with AMI, 68.3% received angiography within 30 days of admission (crude rate: 25.8/person-year) and 48.8% received revascularisation (rate: 11.7/person-year); corresponding figures among 4348 angina patients were 59.7% (rate: 17.4/person-year) and 30.8% (rate: 5.3/person-year). Procedure rates decreased with decreasing levels of education. Comparing low to high education, angiography rates were 29% lower among AMI patients (adjusted HR = 0.71, 95% CI: 0.56–0.90) and 40% lower among angina patients (0.60, 0.47–0.76). Patterns were similar for revascularisation among those with angina (0.78, 0.61–0.99) but not AMI (0.93, 0.69–1.25). After adjustment for private health insurance status, the HRs were attenuated and there was little evidence of an association between education and angiography among those admitted for AMI.

Conclusions
There is a socioeconomic gradient in coronary procedures with the most disadvantaged patients being less likely to receive angiography following hospital admission for AMI or angina, and revascularisation procedures for angina. Unequal access to private health care contributes to these differences. The extent to which the remaining variation is clinically appropriate, or whether angiography is being underused among people with low socioeconomic position or overused among those with higher socioeconomic position, is unclear.
Magnetic targeting enhances the cutaneous wound healing effects of human mesenchymal stem cell-derived iron oxide exosomes
Authors: Li Xiuying , Wang Ying , Shi Liyan , Li Binxi , Li Jing , Wei Zhenhong , Lv Huiying , Wu Liya , Zhang Hao , Yang Bai , Xu Xiaohua , Jiang Jinlan 
Published: August 2020

AbstractHuman mesenchymal stem cell (MSC)-derived exosomes (Exos) are a promising therapeutic agent for cell-free regenerative medicine. However, their poor organ-targeting ability and therapeutic efficacy have been found to critically limit their clinical applications. In the present study, we fabricated iron oxide nanoparticle (NP)-labeled exosomes (Exo + NPs) from NP-treated MSCs and evaluated their therapeutic efficacy in a clinically relevant model of skin injury. We found that the Exos could be readily internalized by human umbilical vein endothelial cells (HUVECs), and could significantly promote their proliferation, migration, and angiogenesis both in vitro and in vivo. Moreover, the protein expression of proliferative markers (Cyclin D1 and Cyclin A2), growth factors (VEGFA), and migration-related chemokines (CXCL12) was significantly upregulated after Exo treatment. Unlike the Exos prepared from untreated MSCs, the Exo + NPs contained NPs that acted as a magnet-guided navigation tool. The in vivo systemic injection of Exo + NPs with magnetic guidance significantly increased the number of Exo + NPs that accumulated at the injury site. Furthermore, these accumulated Exo + NPs significantly enhanced endothelial cell proliferation, migration, and angiogenic tubule formation in vivo; moreover, they reduced scar formation and increased CK19, PCNA, and collagen expression in vivo. Collectively, these findings confirm the development of therapeutically efficacious extracellular nanovesicles and demonstrate their feasibility in cutaneous wound repair.
A simple risk-based strategy for hepatitis C virus screening among incarcerated people in a low- to middle-income setting
Authors: Hariri Sanam , Sharafkhah Maryam , Alavi Maryam , Roshandel Gholamreza , Fazel Abdolreza , Amiriani Taghi , Motamed-Gorji Nazgol , Bazazan Abolfazl , Merat Shahin , Poustchi Hossein , Malekzadeh Reza 
Published: August 2020

AbstractBackgroundHepatitis C virus (HCV) is among the highest priority diseases in custodial settings; however, the diagnosis remains suboptimal among people in custody. This study aimed to validate a short survey for identifying people with HCV infection in a provincial prison in Iran.MethodsBetween July and December 2018, residents and newly admitted inmates of Gorgan central prison completed a questionnaire, including data on the history of HCV testing, drug use, injecting drug use, sharing injecting equipment, and imprisonment. Participants received rapid HCV antibody testing, followed by venipuncture for RNA testing (antibody-positive only). Each enrollment question (yes/no) was compared with the testing results (positive/negative).ResultsOverall, 1892 people completed the questionnaire, including 621 (34%) who were currently on opioid agonist therapy (OAT); 30% of participants had been tested for HCV previously. About 71% had a history of drug use, of whom 13% had ever injected drugs; 52% had ever shared injecting equipment. The prevalence of HCV antibody and RNA was 6.9% (n= 130) and 4.8% (n= 90), respectively. The antibody prevalence was higher among people on OAT compared to those with no history of OAT (11.4% vs. 4.0%). History of drug use was the most accurate predictor of having a positive HCV antibody (sensitivity: 95.2%, negative predictive value: 98.9%) and RNA testing (sensitivity: 96.7%, negative predictive value: 99.5%). The sensitivity of the drug use question was lowest among people with no OAT history and new inmates (87% and 89%, respectively). Among all participants, sensitivity and negative predictive value of the other questions were low and ranged from 34 to 54% and 94 to 97%, respectively.ConclusionsIn resource-limited settings, HCV screening based on having a history of drug use could replace universal screening in prisons to reduce costs. Developing tailored screening strategies together with further cost studies are crucial to address the current HCV epidemic in low- to middle-income countries.
The effect of oral sildenafil therapy on health-related quality of life in adults with pulmonary arterial hypertension related to uncorrected secundum atrial septal defect: a quasi experimental study
Authors: Hidayati Fera , Gharini Putrika P. R. , Hartopo Anggoro Budi , Anggrahini Dyah Wulan , Dinarti Lucia Kris 
Published: August 2020

AbstractBackgroundAssessment of health-related quality of life (HRQoL) are often measured as an important patient-reported outcome (PRO) in clinical studies. Pulmonary arterial hypertension (PAH) is a common complication of atrial septal defect (ASD). This study aimed to compare the HRQoL of PAH related uncorrected secundum ASD at pre and post therapy with oral sildenafil therapy.MethodsWe conducted quasi experimental study at Sardjito General Hospital Yogyakarta since April 2016 to August 2017. Adults with PAH related uncorrected secundum ASD, listed on Congenital Heart Disease and Pulmonary Hypertension (COHARD-PH) registry, and met the inclusion and exclusion criteria were recruited as subject. Interview was done at pre and 12 weeks post oral sildenafil therapy 3 × 20 mg using the EQ-5D-3L questionnaire. Statistical analysis was done using Wilcoxon test and paired T-test to determine the differences of EQ-5D utility and EQ-VAS score at pre and post therapy.ResultsA total of 18 adult patients with PAH related to uncorrected secundum ASD were enrolled in this study (83.33% female; mean age 38.72 ± 10.81 years old). The most frequent reported problems pre therapy were pain/discomfort (83%) and anxiety/depression (78%). Wilcoxon test showed the median of EQ-5D utility score were increased after sildenafil therapy (before = 0.604, after = 0.664; Z = − 2703; p:0.007), respectively. Meanwhile, the paired T-test results showed an increase of EQ-VAS mean difference 6.67 ± 8.75 (p:0.005; 95% CI 2.32–11.02) after sildenafil therapy.ConclusionThe administration of oral sildenafil therapy 3 × 20 mg during 12 weeks in adult patients with PAH related uncorrected secundum ASD gives better HRQoL.
Health-related quality of life and determinants in North-China urban community residents
Authors: Wu Hui , Han Shengbo , Zhang Guicheng , Wu Weidong , Tang Naijun 
Published: August 2020

Abstract
Background
The objectives of this study were to investigate the HRQoL of residents living in central urban areas (CUA) and developing neighborhoods (DN) areas of North-China and to examine the relationship between health conditions and the physical and mental components of quality of life.

Methods
A stratified random sample was taken and health survey scoring system questionnaire SF-36 was used to conduct the HRQoL survey among community residents in the two selected districts in 10 cities. A general questionnaire was also administered with questions that collected general information, population demographic characteristics and health behaviours, social relationships and perception of life satisfaction.

Results
Five thousand eight hundred eighty-one questionnaires were returned from 6059 invitations with a effective response rate of 97%. The residents in DN had a higher score of physical function, role limitation due to physical problems and vitality than those living in CUA. The prevalence of several chronic diseases was lower in DN’s residents than CUA’s residents. Age, presence/absence of chronic diseases, leisure time exercise, regular daily routine, sleep quality, appetite, family and social relationships and life satisfaction were significant determinants of HRQoL.

Conclusions
Residents living in newly developed neighborhoods in China while keeping some habits and lifestyles of their original rural communities are healthier in terms of chronic diseases and HRQoL. Together with other risk factors chronic diseases are an important determinant on HRQoL. Several healthy habits and behaviors such as having a regular daily routine and exercising during leisure time improved HRQoL in Chinese urban communities. Targeted policies of public health based on these findings can better the health-related quality of life.
Risk factors for anastomotic leakage and its impact on long-term survival in left-sided colorectal cancer surgery
Authors: Kryzauskas Marius , Bausys Augustinas , Degutyte Austeja Elzbieta , Abeciunas Vilius , Poskus Eligijus , Bausys Rimantas , Dulskas Audrius , Strupas Kestutis , Poskus Tomas 
Published: August 2020

AbstractBackgroundAnastomotic leakage (AL) significantly impairs short-term outcomes. The impact on the long-term outcomes remains unclear. This study aimed to identify the risk factors for AL and the impact on long-term survival in patients with left-sided colorectal cancer.MethodsNine-hundred patients with left-sided colorectal carcinoma who underwent sigmoid or rectal resection were enrolled in the study. Risk factors for AL after sigmoid or rectal resection were identified, and long-term outcomes of patients with and without AL were compared.ResultsAL rates following sigmoid and rectal resection were 5.1% and 10.7%, respectively. Higher ASA score (III–IV; OR = 10.54,p= 0.007) was associated with AL in patients undergoing sigmoid surgery on multivariable analysis. Male sex (OR = 2.40,p= 0.004), CCI score > 5 (OR = 1.72,p= 0.025), and T3/T4 stage tumors (OR = 2.25,p= 0.017) were risk factors for AL after rectal resection on multivariable analysis. AL impaired disease-free and overall survival in patients undergoing sigmoid (p= 0.009 andp= 0.001) and rectal (p= 0.003 andp= 0.014) surgery.ConclusionASA score of III–IV is an independent risk factor for AL after sigmoid surgery, and male sex, higher CCI score, and advanced T stage are risk factors for AL after rectal surgery. AL impairs the long-term survival in patients undergoing left-sided colorectal surgery.
Identification and validation of smoking-related genes in lung adenocarcinoma using an in vitro carcinogenesis model and bioinformatics analysis
Authors: Wang Jin , Chen Tao , Yu Xiaofan , OUYang Nan , Tan Lirong , Jia Beibei , Tong Jian , Li Jianxiang 
Published: August 2020

Abstract
Background
Lung cancer is one of the most common carcinomas in the world, and lung adenocarcinoma (LUAD) is the most lethal and most common subtype of lung cancer. Cigarette smoking is the most leading risk factor of lung cancer, but it is still unclear how normal lung cells become cancerous in cigarette smokers. This study aims to identify potential smoking-related biomarkers associated with the progression and prognosis of LUAD, as well as their regulation mechanism using an in vitro carcinogenesis model and bioinformatics analysis.

Results
Based on the integration analysis of four Gene Expression Omnibus (GEO) datasets and our mRNA sequencing analysis, 2 up-regulated and 11 down-regulated genes were identified in both S30 cells and LUAD. By analyzing the LUAD dataset in The Cancer Gene Analysis (TCGA) database, 3 of the 13 genes, viz., glycophorin C (GYPC), NME/NM23 nucleoside diphosphate kinase 1 (NME1) and slit guidance ligand 2 (SLIT2), were found to be significantly correlated with LUAD patients’ smoking history. The expression levels of GYPC, NME1 and SLIT2 in S30 cells and lung cancer cell lines were validated by quantitative PCR, immunofluorescence, and western blot assays. Besides, these three genes are associated with tumor invasion depth, and elevated expression of NME1 was correlated with lymph node metastasis. The enrichment analysis suggested that these genes were highly correlated to tumorigenesis and metastasis-related biological processes and pathways. Moreover, the increased expression levels of GYPC and SLIT2, as well as decreased expression of NME1 were associated with a favorable prognosis in LUAD patients. Furthermore, based on the multi-omics data in the TCGA database, these genes were found to be regulated by DNA methylation.

Conclusion
In conclusion, our observations indicated that the differential expression of GYPC, NME1 and SLIT2 may be regulated by DNA methylation, and they are associated with cigarette smoke-induced LUAD, as well as serve as prognostic factors in LUAD patients.
Thrombomodulin facilitates peripheral nerve regeneration through regulating M1/M2 switching
Authors: Huang Tzu-Chieh , Wu Hua-Lin , Chen Szu-Han , Wang Yun-Ting , Wu Chia-Ching 
Published: August 2020

Abstract
Background
Excessive inflammation within damaged tissue usually leads to delayed or insufficient regeneration, and nerves in the peripheral nervous system (PNS) generally do not recover fully following damage. Consequently, there is growing interest in whether modulation of the inflammatory response could help to promote nerve regeneration in the PNS. However, to date, there are no practical therapeutic strategies for manipulating inflammation after nerve injury. Thrombomodulin (TM) is a transmembrane glycoprotein containing five domains. The lectin-like domain of TM has the ability to suppress the inflammatory response. However, whether TM can modulate inflammation in the PNS during nerve regeneration has yet to be elucidated.

Methods
We investigated the role of TM in switching proinflammatory type 1 macrophages (M1) to anti-inflammatory type 2 macrophages (M2) in a human monocytic cell line (THP-1) and evaluated the therapeutic application of TM in transected sciatic nerve injury in rats.

Results
The administration of TM during M1 induction significantly reduced the expression levels of inflammatory cytokines, including TNF-a (p < 0.05), IL-6 (p < 0.05), and CD86 (p < 0.05), in THP-1 cells. Simultaneously, the expression levels of M2 markers, including IL-10 (p < 0.05) and CD206 (p < 0.05), were significantly increased in TM-treated THP-1 cells. Inhibition of IL-4R-c-Myc-pSTAT6-PPARγ signaling abolished the expression levels of IL-10 (p < 0.05) and CD206 (p < 0.05). The conditioned medium (CM) collected from M1 cells triggered an inflammatory response in primary Schwann cells, while CM collected from M1 cells treated with TM resulted in a dose-dependent reduction in inflammation. TM treatment led to better nerve regeneration when tested 6 weeks after injury and preserved effector muscle function. In addition, TM treatment reduced macrophage infiltration at the site of injury and led to potent M1 to M2 transition, thus indicating the anti-inflammatory capacity of TM.

Conclusions
Collectively, our findings demonstrate the anti-inflammatory role of TM during nerve regeneration. Therefore, TM represents a potential drug for the promotion and modulation of functional recovery in peripheral nerves that acts by regulating the M1/M2 ratio.
Functions of resolvin D1-ALX/FPR2 receptor interaction in the hemoglobin-induced microglial inflammatory response and neuronal injury
Authors: Liu Guang-Jie , Tao Tao , Wang Han , Zhou Yan , Gao Xuan , Gao Yong-Yue , Hang Chun-Hua , Li Wei 
Published: August 2020

AbstractBackgroundEarly brain injury (EBI) has been thought to be a key factor affecting the prognosis of subarachnoid hemorrhage (SAH). Many pathologies are involved in EBI, with inflammation and neuronal death being crucial to this process. Resolvin D1 (RvD1) has shown superior anti-inflammatory properties by interacting with lipoxin A4 receptor/formyl peptide receptor 2 (ALX/FPR2) in various diseases. However, it remains not well described about its role in the central nervous system (CNS). Thus, the goal of the present study was to elucidate the potential functions of the RvD1-ALX/FPR2 interaction in the brain after SAH.MethodsWe used an in vivo model of endovascular perforation and an in vitro model of hemoglobin (Hb) exposure as SAH models in the current study. RvD1 was used at a concentration of 25 nM in our experiments. Western blotting, quantitative polymerase chain reaction (qPCR), immunofluorescence, and other chemical-based assays were performed to assess the cellular localizations and time course fluctuations in ALX/FPR2 expression, evaluate the effects of RvD1 on Hb-induced primary microglial activation and neuronal damage, and confirm the role of ALX/FPR2 in the function of RvD1.ResultsALX/FPR2 was expressed on both microglia and neurons, but not astrocytes. RvD1 exerted a good inhibitory effect in the microglial pro-inflammatory response induced by Hb, possibly by regulating the IRAK1/TRAF6/NF-κB or MAPK signaling pathways. RvD1 could also potentially attenuate Hb-induced neuronal oxidative damage and apoptosis. Finally, the mRNA expression of IRAK1/TRAF6 in microglia and GPx1/bcl-xL in neurons was reversed by the ALX/FPR2-specific antagonist Trp-Arg-Trp-Trp-Trp-Trp-NH2 (WRW4), indicating that ALX/FPR2 could mediate the neuroprotective effects of RvD1.ConclusionsThe results of the present study indicated that the RvD1-ALX/FPR2 interaction could potentially play dual roles in the CNS, as inhibiting Hb promoted microglial pro-inflammatory polarization and ameliorating Hb induced neuronal oxidant damage and death. These results shed light on a good therapeutic target (ALX/FPR2) and a potential effective drug (RvD1) for the treatment of SAH and other inflammation-associated brain diseases.
Perceptions of contraception services among recipients of a combination HIV-prevention interventions for adolescent girls and young women in South Africa: a qualitative study
Authors: Jonas Kim , Duby Zoe , Maruping Kealeboga , Dietrich Janan , Slingers Nevilene , Harries Jane , Kuo Caroline , Mathews Catherine 
Published: August 2020

Abstract
Background
Adolescent girls and young women (AGYW) in low- and middle- income countries (LMICs) have high rates of unintended pregnancies and are at higher risk for HIV infection compared to older women of reproductive age. Using a socio-ecological model approach, this research investigated perceptions of contraception services among AGYW who had been recipients of a combination HIV-prevention intervention, to better understand factors affecting their access to and use of contraception services.

Method
Qualitative methods used in this study included focus group discussions (FGDs) and in-depth interviews (IDIs) with 185 AGYW aged 15–24 years living in five of the ten intervention districts. All interviews and FGDs were audio-recorded and data were analyzed thematically using Nvivo 12 software with manual identification of themes and labelling of raw data.

Results
The findings reveal that many AGYW, especially those in the younger age group 15–19 years, experience difficulties in accessing contraception services, mainly at the interpersonal and health service levels. Lack of support for the use of contraceptives from parents/caregivers as well as from sexual partners were key barriers at the interpersonal level; while providers’ negative attitude was the main barrier at the health service level. The majority of school-going AGYW felt that bringing contraception services and other sexual and reproductive health (SRH) services on to the school premises would legitimize their use in the eyes of parents and help to overcome barriers related to parental support and acceptance, as well as overcome some of the health service and structural level barriers. However, views among school-going AGYW about school-based provision of contraception services were mixed, clouded with concerns relating to confidentiality.

Conclusion
Interventions to improve parental/caregiver and sexual partner support for the use of contraception services by AGYW, as well as efforts to expand the provision of contraception services on the school premises are urgently needed. Future interventions should incorporate multi-level approaches to address structural and contextual barriers to access and use of contraception services to gain maximum effect.