bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tuberculosis-related stigma among adults presenting for HIV testing in KwaZulu-Natal, South Africa
Authors: Bajema Kristina L. , Kubiak Rachel W. , Guthrie Brandon L. , Graham Susan M. , Govere Sabina , Thulare Hilary , Moosa Mahomed-Yunus , Celum Connie , Drain Paul K. 
Published: September 2020

Abstract
Background
Tuberculosis (TB)-related stigma presents a major barrier to care of persons with TB through its impact on treatment initiation and retention in care. This is particularly challenging in settings with high prevalence of both TB and HIV where fear of HIV/AIDS can amplify stigma surrounding TB. The purpose of this study was to validate a TB stigma scale for use among persons presenting for outpatient HIV screening in the Umlazi township of South Africa and evaluate factors associated with TB-related stigma in this high HIV burden setting.

Methods
In this cross-sectional study, we measured TB-related stigma in adults prior to HIV testing using a 12-item scale designed to assess experienced and felt TB-related stigma.

Results
Among 848 adults, mean age was 32 years, 54% were male, and the median TB stigma score was 19 of 36 (interquartile range 15–23). We identified two factors in the stigma scale which had excellent reliability (Cronbach’s alpha 0.85, 0.89). Persons with high TB stigma were more likely to be male (adjusted relative risk ratio [aRRR] 1.56, 95% confidence interval [CI] 1.11–2.28) and have accurate knowledge of TB transmission (aRRR 1.90, 95% CI 1.16–3.10) as compared to those with low stigma. Variables not significantly associated with stigma in the multivariate model included education, income, prior TB or HIV diagnoses, and depression.

Conclusions
Male sex and TB knowledge were associated with higher TB stigma in an outpatient HIV clinic in a South African township. Identifying risk factors associated with stigma will be important to guide stigma reduction interventions.
Conducting mixed-methods research with Ebola survivors in a complex setting in Sierra Leone
Authors: Alva Soumya , Davis Nicole , Stan Laurentiu , Pivato Isotta , Sanderson Jeffrey 
Published: September 2020

Abstract
Background
In late 2015, the Sierra Leone government established the Comprehensive Program for Ebola Survivors (CPES) to improve the well-being of 3466 registered Ebola virus disease (EVD) survivors. This case analysis outlines the challenges of conducting research studies on the health situation of these EVD survivors in a complicated, post-Ebola context. It outlines strategies to address these challenges without compromising research quality. The mixed-methods study sought to determine EVD survivors’ access to health services offered through CPES, their health and disability status, and psychosocial and mental health issues faced. Qualitative data from survivors and stakeholders at multiple levels complemented and contextualized the survey results to help understand the unique health and associated socioeconomic challenges that EVD survivors face, which could be applied to other crisis settings. Study findings indicated that CPES had lasting impacts on Sierra Leone’s health system, enabling it to respond to EVD survivors, who increasingly accessed health services and showed lower levels of disability after receiving care.

Discussion
Understanding the health service needs of this specialized population in a country with an overloaded health system after the Ebola epidemic makes this research study important and timely. The study faced several challenges, including working in a low-resource and low-capacity setting marked by constantly changing priorities and activities of CPES donors and implementers. Further, the study aimed to measure sensitive topics, such as mental health and disability, with standardized tools that required careful contextualization for accurate reporting of findings. Strategies to overcome these challenges included utilizing a mixed-methods approach to contextualize and validate survey results. The study also enabled capacity building of local research teams to ensure that they could follow lines of inquiry and navigate the complex post-Ebola context.

Conclusions
Flexibility is paramount when conducting high-quality research for representative and useful results. Timely research and ongoing sharing of the findings with stakeholders is critical to ensure that they benefit study subjects. Furthermore, in such settings, there is a need to balance engagement of stakeholders with maintaining independence and impartiality in the research design and subsequent data produced.
Clinical characteristics and associated factors of trigeminal neuralgia: experience from Addis Ababa, Ethiopia
Authors: Ayele Biniyam Alemayehu , Mengesha Abenet Tafesse , Zewde Yared Zenebe 
Published: September 2020

Abstract
Background
Trigeminal neuralgia (TN) is considered one of the most painful illnesses known to medical practice. Little is known about TN in Ethiopia. Our study aimed to assess clinical characteristics, treatment, and associated factors of TN.

Method
A cross-sectional study was conducted on a total of 61 patients with confirmed Trigeminal neuralgia visiting outpatient neurology clinics of two government teaching Hospitals and two private health facilities in Addis Ababa, Ethiopia between June 2019 and March 2020.

Results
Our participants’ age range between 21 and 78 years with mean ± SD age of 50.7 ± 14.2 years. Males accounted for 50.8%. Twenty-five (41%) reported a prior history of one or more tooth extraction on the painful side. In the majority (68.9%) of the patient’s right side of the face was affected. The mandibular nerve was the commonly involved branch (47.5%). Fifty-five (90.2%) of patients fulfilled criteria for classical TN and 9.8% had symptomatic TN. The majority of the participants reported mixed types of pain such as burning, lancinating, and electric shock-like. Well defined trigger zone was identified in one-third (36%) of cases. Carbamazepine was the most commonly prescribed drug with a median dose of 600 mg (IQR: 400 – 1000 mg). Two-third of the patients reported prominent satisfaction. The mean (± SD) dose of carbamazepine used to control the pain was significantly higher among those with dental extraction history as compared to those with no history of dental extraction (736 ± 478.6 mg Vs 661.1 ± 360.4 mg, respectively, T = − 2.06, p = 0.04 95% CI:-213.41 to − 2.98). A statistically significant number of patients who had single branch involvement reported prominent satisfaction with their treatment as compared to those who had more than one branch involvement. (95% CI: 1.3–3.8: p = 0.006).

Conclusion
The majority of our patients had Classical TN in the mandibular nerve distribution on the right side of the face and well satisfied with carbamazepine only treatment. Furthermore, we observed a higher proportion of dental extraction among our patients, hinting at the scale of miss and delayed-diagnoses. Thus, we recommend conducting a well-designed prospective study to support our findings.
Oxidative stress levels and oral bacterial milieu in the saliva from pregnant vs. non-pregnant women
Authors: Wagle Madhu , Basnet Purusotam , Vartun Åse , Trovik Tordis A. , Acharya Ganesh 
Published: September 2020

AbstractBackgroundSaliva plays a significant role in maintaining oral health and oral bacterial milieu. Difference in oxidative stress (OS) levels in saliva in conjunction with bacterial load between pregnant and non-pregnant women has not been studied previously. We hypothesized that the physiological changes in pregnancy alter oral bacterial milieu by promoting growth ofStreptococcus mutans(SM) andLactobacillus(LB), and increase OS in saliva. The aim of this study was to measure and compare the oral bacterial milieu, OS and total anti-oxidative capacity (TAC) in the saliva of pregnant and non-pregnant women.MethodIn this cross-sectional study, we assessed oral bacterial milieu by culturing the SM and LB by using commercial kits, TAC by measuring 2, 2′-Azino-Bis-3-Ethylbenzothiazoline-6-Sulfonic Acid (ABTS) free radical scavenging activity spectrophotometrically and OS levels by measuring malondialdehyde (MDA) levels with commercial kits in the saliva of pregnant women (n = 38) at 18–20 weeks of gestation, who were compared with age-matching healthy non-pregnant women (n = 50).ResultsStreptococcus mutanswere found to be more abundant in the saliva of pregnant women compared with non-pregnant women (p = 0.003) but the difference was not significant for the LB (p = 0.267). TAC was found to be 46% lower in pregnant women’s saliva compared to non-pregnant women [optical density (OD) measured at 731 nm as 0.118 ± 0.01 vs. 0.063 ± 0.02;p < 0.001]. OS, expressed as saliva MDA levels, was found to be 16% higher in pregnant women compared to non-pregnant women (1.07 nM MDA vs. 0.92 nM MDA;p = 0.023).ConclusionPregnancy has an adverse impact on oral bacterial milieu as demonstrated by increased colonization withStreptococcus mutanstogether with higher OS levels and decreased TAC levels in saliva. This emphasizes the importance of improved oral hygiene and provision of oral healthcare services during pregnancy care.
Unmet need for family planning services among young married women (15–24 years) living in urban slums of India
Authors: Yadav Kriti , Agarwal Monika , Shukla Mukesh , Singh Jai Vir , Singh Vijay Kumar 
Published: September 2020

AbstractBackgroundNFHS-4 stated high unmet need for family planning (FP) among married women in Uttar Pradesh. Unmet need is highest among age groups: 15–19 and 20–24 years. Currently few data is available about unmet need for FP among vulnerable section of the community, i.e.15–24 year’s age group living in the urban slums. Therefore this study was conducted to assess the unmet need for FP services and its determinants among this under-privileged and under-served section of society residing in urban slums of Uttar Pradesh, India.MethodsCross sectional study was conducted in the slums of Lucknow, India. One Urban-Primary Health Centre (U-PHC) was randomly selected from each of the eight Municipal Corporation zones in Lucknow and two notified slums were randomly selected from each U-PHC. All the households in the selected slums were visited for interviewing 33 young married women (YMW) in each slum, with a pre-structured and pre tested questionnaire, to achieve the sample size of 535. Analysis of the data was done using logistic regression.ResultsThe unmet need for family planning services among YMW was 55.3%. About 40.9% of the unmet need was for spacing methods and 14.4% for limiting methods. Important reasons cited for unmet need for family planning services were negligent attitude of the women towards family planning, opposition by husband or others, embarrassment / hesitation / shyness for contraceptive use, poor knowledge of the FP method or availability of family planning services. Among method related reasons health concerns and fear of side effects were frequently cited reasons. On multiple logistic regression: age, educational status, duration of marriage, number of pregnancies, knowledge of contraceptive methods, opposition to contraceptive use and contact with Auxiliary Nurse Midwife (ANM) showed independently significant association with unmet need for family planning services.ConclusionsUnmet need for family planning services is very high among the YMW of urban slums. The findings stress that program managers should take into cognizance these determinants of high level of unmet need for family planning among YMW and make intense efforts for addressing these issues in a holistic manner.
Myricanol 5-fluorobenzyloxy ether regulation of survivin pathway inhibits human lung adenocarcinoma A549 cells growth in vitro
Authors: Dai Guan-hai , Chen Xuan , Ren Ze-ming , Dai Chen-jie , Tong Ye-ling , Chai Ke-qun 
Published: September 2020

Abstract
Background
This study aimed to explore the growth inhibitory effect of myricanol 5-fluorobenzyloxy ether (5FEM) and its underlying mechanisms in human lung adenocarcinoma A549 cells in vitro.

Methods
5FEM was obtained by the chemical modification of myricanol with fluorobenzyloxy ether at the OH(5) position. The cytotoxicity, cell apoptosis, cell cycle, mitochondrial membrane potential (ΔΨm), scratch test, colony formation, and the expression levels of the key survivin pathway-related genes in A549 were evaluated.

Results
5FEM could significantly inhibit A549 cell growth; induce cell apoptosis; increase G0/G1 population; reduce ΔΨm; inhibit cell migration and colony formation; upregulate caspase-9, P21, and Bax expression levels; and downregulate PARP, survivin, and Bcl-2 expression level.

Conclusion
These results enhanced our understanding of 5FEM and aid the discovery of novel myricanol derivatives as potential antitumor agents.
Aboriginal and Torres Strait Islander family access to continuity of health care services in the first 1000 days of life: a systematic review of the literature
Authors: Sivertsen Nina , Anikeeva Olga , Deverix Janiene , Grant Julian 
Published: September 2020

Abstract
Background
Aboriginal women and their infants experience significant disadvantage in health outcomes compared to their non-Aboriginal counterparts. Access to timely, effective and appropriate maternal and child healthcare can contribute to reducing these existing health disparities. However, accessing mainstream healthcare services often results in high levels of fear and anxiety, and low attendance at subsequent appointments among Aboriginal women, due to inefficient communication, poor service coordination and a lack of continuity of care.

Methods
This integrative literature review sought to explore factors that contribute to continuity of care and consider service features that contribute to positive care experiences and satisfaction with care received by Aboriginal women and their infants.
In total, 28 studies were included in the review and were thematically analysed using Braun and Clarke’s six steps of thematic analysis. This was followed by a collaborative, computer-assisted qualitative analysis, which resulted in the emergence of five key themes: lack of continuity of care, impact of lack of continuity of care, continuity of care interventions, impact of continuity of care interventions, and strategies to improve continuity of care.

Results
Most studies focused on health services in rural or remote Aboriginal communities and there was a lack of documented evidence of continuity of care (or lack thereof) for Aboriginal women living and birthing in regional and metropolitan areas. The majority of studies focused explicitly on continuity of care during the antenatal, birthing and immediate postnatal period, with only two studies considering continuity through to an infant’s first 1000 days.

Conclusion
The review highlights a lack of studies exploring continuity of care for Aboriginal families from the antenatal period through to an infants’ first 1000 days of life. Included studies identified a lack of continuity in the antenatal, peri- and postnatal periods in both regional and metropolitan settings. This, along with identified strategies for enhancing continuity, have implications for communities, and healthcare services to provide appropriate and culturally safe care. It also marks an urgent need to incorporate and extend continuity of care and carer through to the first 1000 days for successful maternal and infant health outcomes for Aboriginal peoples.
Circ_0004913 sponges miR-1290 and regulates FOXC1 to inhibit the proliferation of hepatocellular carcinoma
Authors: Yu Yabin , Han Suyang , Li Meng , Song Yan , Qi Fuzhen 
Published: September 2020

Abstract
Background
Circular RNA (circRNA), an novel type of non-coding RNA, could interact with miRNA and protein molecules to regulate the occurrence and progression of hepatocellular carcinoma (HCC). However, little is known about the pathogenesis of circ_0004913 in HCC.

Materials
Through the GEO (Gene Expression Omnibus database) to find dysfunctional circRNAs in HCC, and circ_0004913 was selected as the research object. Quantitative reverse transcription PCR (qRT-PCR) was used to detect the expression level of circ_0067934 in HCC tissues and cells. CCK-8, Edu and flow cytometry assays were used to determine the malignant behavior of transfected HCC cells. Mechanistically, RNA immunoprecipitation and dual-luciferase reporter gene assay were performed to explore the relation between circ_0067934, miR-1290 and FOXC1 (Forkhead box C1) in HCC.

Results
The expression of circ_0004913 was down-regulated in HCC tissues and cell lines, while the overexpression of circ_0004913 attenuates the malignant behavior of HCC cells. Bioinformatics predicted that circ_0004913 interacts with miR-1290, which targeted FOXC1 mRNA. In fact, miR-1290 promoted the malignant behavior of HCC cells, while FOXC1 had the opposite effect. In addition, circ_0004913 overexpression enhanced FOXC1 expression by reducing miR-1290 expression, thereby inhibiting the proliferation of HCC cells.

Conclusions
Circ_0004913 / miR-1290 / FOXC1 regulatory axis could inhibit the progress of HCC. Our findings may provide potential new targets for the diagnosis and treatment of HCC.
Genetic polymorphism and natural selection of circumsporozoite protein in Myanmar Plasmodium vivax
Authors: Võ Tuấn Cường , Lê Hương Giang , Kang Jung-Mi , Moe Mya , Naw Haung , Myint Moe Kyaw , Lee Jinyoung , Sohn Woon-Mok , Kim Tong-Soo , Na Byoung-Kuk 
Published: September 2020

Abstract
Background
Circumsporozoite surface protein (CSP) of malaria parasites has been recognized as one of the leading vaccine candidates. Clinical trials of vaccines for vivax malaria incorporating Plasmodium vivax CSP (PvCSP) have demonstrated their effectiveness in preventing malaria, at least in part. However, genetic diversity of pvcsp in the natural population remains a major concern.

Methods
A total of 171 blood samples collected from patients infected with Plasmodium vivax in Myanmar were analysed in this study. The pvcsp was amplified by polymerase chain reaction, followed by cloning and sequencing. Polymorphic characteristics and natural selection of pvcsp population in Myanmar were analysed using DNASTAR, MEGA6 and DnaSP programs. The polymorphic pattern and natural selection of publicly accessible global pvcsp sequences were also comparatively analysed.

Results
Myanmar pvcsp sequences were divided into two subtypes VK210 and VK247 comprising 143 and 28 sequences, respectively. The VK210 subtypes showed higher levels of genetic diversity and polymorphism than the VK247 subtypes. The N-terminal non-repeat region of pvcsp displayed limited genetic variations in the global population. Different patterns of octapeptide insertion (ANKKAEDA in VK210 and ANKKAGDA in VK247) and tetrapeptide repeat motif (GGNA) were identified in the C-terminal region of global pvcsp population. Meanwhile, the central repeat region (CRR) of Myanmar and global pvcsp, both in VK210 and VK247 variants, was highly polymorphic. The high level of genetic diversity in the CRR has been attributed to the different numbers, types and combinations of peptide repeat motifs (PRMs). Interestingly, 27 and 5 novel PRMs were found in Myanmar VK210 and VK247 variants, respectively.

Conclusion
Comparative analysis of the global pvcsp population suggests a complex genetic profile of pvcsp in the global population. These results widen understanding of the genetic make-up of pvcsp in the global P. vivax population and provide valuable information for the development of a vaccine based on PvCSP.
Genetic diversity of Plasmodium falciparum in Grande Comore Island
Authors: Papa Mze Nasserdine , Bogreau Hervé , Diedhiou Cyrille K. , Herdell Vendela , Rahamatou Silai , Bei Amy K. , Volkman Sarah K. , Basco Leonardo , Mboup Souleymane , Ahouidi Ambroise D. 
Published: September 2020

Abstract
Background
Despite several control interventions resulting in a considerable decrease in malaria prevalence in the Union of the Comoros, the disease remains a public health problem with high transmission in Grande Comore compared to neighbouring islands. In this country, only a few studies investigating the genetic diversity of Plasmodium falciparum have been performed so far. For this reason, this study aims to examine the genetic diversity of P. falciparum by studying samples collected in Grande Comore in 2012 and 2013, using merozoite surface protein 1 (msp1), merozoite surface protein 2 (msp2) and single nucleotide polymorphism (SNP) genetic markers.

Methods
A total of 162 positive rapid diagnostic test (RDT) samples from Grande Comore were used to extract parasite DNA. Allelic families K1, Mad20 and RO33 of the msp1 gene as well as allelic families IC3D7 and FC37 of the msp2 gene were determined by using nested PCR. Additionally, 50 out of 151 samples were genotyped to study 24 SNPs by using high resolution melting (HRM).

Results
Two allelic families were predominant, the K1 family of msp1 gene (55%) and the FC27 family of msp2 gene (47.4%). Among 50 samples genotyped for 24 SNPs, 42 (84%) yielded interpretable results. Out of these isolates, 36 (85%) were genetically unique and 6 (15%) grouped into two clusters. The genetic diversity of P. falciparum calculated from msp1 and msp2 genes and SNPs was 0.82 and 0.61, respectively.

Conclusion
In summary, a large genetic diversity of P. falciparum was observed in Grande Comore. This may favour persistence of malaria and might be one of the reasons for the high malaria transmission compared to neighbouring islands. Further surveillance of P. falciparum isolates, mainly through environmental management and vector control, is warranted until complete elimination is attained.
Challenges on optimization of 3D-printed bone scaffolds
Authors: Bahraminasab Marjan 
Published: September 2020

AbstractAdvances in biomaterials and the need for patient-specific bone scaffolds require modern manufacturing approaches in addition to a design strategy. Hybrid materials such as those with functionally graded properties are highly needed in tissue replacement and repair. However, their constituents, proportions, sizes, configurations and their connection to each other are a challenge to manufacturing. On the other hand, various bone defect sizes and sites require a cost-effective readily adaptive manufacturing technique to provide components (scaffolds) matching with the anatomical shape of the bone defect. Additive manufacturing or three-dimensional (3D) printing is capable of fabricating functional physical components with or without porosity by depositing the materials layer-by-layer using 3D computer models. Therefore, it facilitates the production of advanced bone scaffolds with the feasibility of making changes to the model. This review paper first discusses the development of a computer-aided-design (CAD) approach for the manufacture of bone scaffolds, from the anatomical data acquisition to the final model. It also provides information on the optimization of scaffold’s internal architecture, advanced materials, and process parameters to achieve the best biomimetic performance. Furthermore, the review paper describes the advantages and limitations of 3D printing technologies applied to the production of bone tissue scaffolds.