bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Rare Case of Acute Hemorrhagic Retinopathy Following Intravitreal Melphalan Injection for Persistent Vitreous Seeds in Retinoblastoma
Authors: Rajan Renu P. , Kim Usha , Maitray Aditya , Jena Soumya , Sen Sagnik 
Published: July 2021

Purpose: This report describes a case of acute occlusive hemorrhagic complication after intravitreal melphalan for vitreous seeds in retinoblastoma. Methods: A case report is presented. Results: Intravitreal melphalan has been used extensively for vitreous seeds in retinoblastoma. Although melphalan is relatively safe at optimal doses, it can sometimes cause inadvertent complications like hemorrhagic events if the drug is administered close to the retina or in more pigmented eyes. We report a case of a 5-month-old patient with bilateral retinoblastoma who underwent enucleation of the right eye and 2 intravitreal melphalan injections in the left eye (20 µg/0.02 mL) at a 1-month interval for persistent vitreous seeds. After the second injection, there was a sudden decrease in the child’s visual acuity in the left eye, and the retina showed multiple intraretinal hemorrhages and diffuse chorioretinal atrophy. Conclusion: Intravitreal melphalan may cause acute hemorrhagic complications after intravitreal use for retinoblastoma seeds, especially in pigmented eyes.
A targeted proteomics investigation of the obesity paradox in venous thromboembolism
Authors: Ten Cate Vincent , Koeck Thomas , Prochaska Jürgen , Schulz Andreas , Panova-Noeva Marina , Rapp Steffen , Eggebrecht Lisa , Lenz Michael , Glunz Julia , Sauer Madeleine , Ewert Raff , Halank Michael , Münzel Thomas , Heitmeier Stefan , Andrade-Navarro Miguel A. , Lackner Karl J. , Konstantinides Stavros V. , Leineweber Kirsten , Wild Philipp S. 
Published: July 2021

Abstract
The obesity paradox, the controversial finding that obesity promotes disease development but protects against sequelae in patients, has been observed in venous thromboembolism (VTE). The aim of this investigation was to identify a body mass–related proteomic signature in VTE patients and to evaluate whether this signature mediates the obesity paradox in VTE patients. Data from the Genotyping and Molecular Phenotyping in Venous ThromboEmbolism Project, a prospective cohort study of 693 VTE patients, were analyzed. A combined end point of recurrent VTE or all-cause death was used. Relative quantification of 444 proteins was performed using high-throughput targeted proteomics technology. Measurements were performed in samples collected during the acute VTE event and at 12-month follow-up. An 11-protein signature (CLEC4C, FABP4, FLT3LG, IL-17C, LEP, LYVE1, MASP1, ST2, THBS2, THBS4, TSLP) for body mass in VTE patients was identified. The signature did not significantly mediate the obesity paradox (change in hazard ratio [HR]: 0.04; likelihood ratio test of nested models = 7.7; P = .74), but its main constituent protein, leptin, was inversely associated with recurrent VTE or death (adjusted HR [95% confidence interval] per standard deviation increase: 0.66 [0.46-0.94]). This relationship was significantly (P = .007) modified by markers of leptin resistance (ie, high body mass index and high circulating matrix metalloproteinase-2 levels). Although the signature did not substantially explain the obesity paradox, leptin appears to be protective against disease recurrence and death in VTE patients. This protective effect was abrogated under conditions of leptin resistance and hence was unrelated to the obesity paradox.
Exploring the genomic resources and analysing the genetic diversity and population structure of Chinese indigenous rabbit breeds by RAD-seq
Authors: Liu Chenmiao , Wang Shuhui , Dong Xianggui , Zhao Jiping , Ye Xiangyang , Gong Ruiguang , Ren Zhanjun 
Published: July 2021

Abstract
Background
Chinese indigenous rabbits have distinct characteristics, such as roughage resistance, stress resistance and environmental adaptability, which are of great significance to the sustainable development of the rabbit industry in China. Therefore, it is necessary to study the genetic diversity and population structure of this species and develop genomic resources.

Results
In this study, we used restriction site-associated DNA sequencing (RAD-seq) to obtain 1,006,496 SNP markers from six Chinese indigenous rabbit breeds and two imported rabbit breeds. Jiuyishan and Fujian Yellow rabbits showed the highest nucleotide diversity (π) and decay of linkage disequilibrium (LD), as well as higher observed heterozygosity (Ho) and expected heterozygosity (He), indicating higher genetic diversity than other rabbits. The inbreeding coefficient (FIS) of New Zealand rabbits and Belgian rabbits was higher than that of other rabbits. The neighbour-joining (NJ) tree, principal component analysis (PCA), and population structure analysis of autosomes and Y chromosomes showed that Belgian, New Zealand, Wanzai, Sichuan White, and Minxinan Black rabbits clustered separately, and Fujian Yellow, Yunnan Colourful, and Jiuyishan rabbits clustered together. Wanzai rabbits were clearly separated from other populations (K = 3), which was consistent with the population differentiation index (FST) analysis. The selection signature analysis was performed in two populations with contrasting coat colours. With Sichuan White and New Zealand rabbits as the reference populations and Minxinan Black and Wanzai rabbits as the target populations, 408, 454, 418, and 518 genes with a selection signature, respectively, were obtained. Gene Ontology (GO) classification and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were performed on the genes with a selection signature. The results showed that the genes with a selection signature were enriched in the melanogenesis pathway in all four sets of selection signature analyses.

Conclusions
Our study provides the first insights into the genetics and genomics of Chinese indigenous rabbit breeds and serves as a valuable resource for the further effective utilization of the species.
Mapping QTL for spike fertility and related traits in two doubled haploid wheat (Triticum aestivum L.) populations
Authors: Pretini Nicole , Vanzetti Leonardo S. , Terrile Ignacio I. , Donaire Guillermo , González Fernanda G. 
Published: July 2021

Abstract
Background
In breeding programs, the selection of cultivars with the highest yield potential consisted in the selection of the yield per se, which resulted in cultivars with higher grains per spike (GN) and occasionally increased grain weight (GW) (main numerical components of the yield). In this study, quantitative trait loci (QTL) for GW, GN and spike fertility traits related to GN determination were mapped using two doubled haploid (DH) populations (Baguette Premium 11 × BioINTA 2002 and Baguette 19 × BioINTA 2002).

Results
In total 305 QTL were identified for 14 traits, out of which 12 QTL were identified in more than three environments and explained more than 10% of the phenotypic variation in at least one environment. Eight hotspot regions were detected on chromosomes 1A, 2B, 3A, 5A, 5B, 7A and 7B in which at least two major and stable QTL sheared confidence intervals. QTL on two of these regions (R5A.1 and R5A.2) have previously been described, but the other six regions are novel.

Conclusions
Based on the pleiotropic analysis within a robust physiological model we conclude that two hotspot genomic regions (R5A.1 and R5A.2) together with the QGW.perg-6B are of high relevance to be used in marker assisted selection in order to improve the spike yield potential. All the QTL identified for the spike related traits are the first step to search for their candidate genes, which will allow their better manipulation in the future.
Comparison of fatigue and fatigability correlates in Korean breast cancer survivors and differences in associations with anxiety, depression, sleep disturbance, and endocrine symptoms: a randomized controlled trial
Authors: Jang Min Kyeong , Han Jeehee , Kim Sung Hae , Ko Yun Hee , Kim Soo Yeon , Kim Sue 
Published: July 2021

Abstract
Background
Fatigue is one of the most common and burdensome symptoms experienced by cancer patients. In interventions intended to reduce fatigue in such patients, fatigability, or perception of fatigue contextualized to activities of fixed intensity and duration, may also be measured. This study investigated the effects of a 15-month intervention on fatigue and fatigability in breast cancer survivors (BCS); explored the fatigue-fatigability relationship; and evaluated the impacts of fatigue and fatigability on anxiety, depression, sleep disturbance, and endocrine symptoms.

Methods
A randomized controlled trial design was applied to an exercise program called BLESS (Better Life after cancer, Energy, Strength, and Support). The intervention included this 12-week exercise program and four follow-up contacts intended to promote exercise adherence over the following year. Participants were women aged 20 to 69 who had been diagnosed with stage I, II, or III breast cancer; had completed active treatment; and had moderate or higher fatigue. At the completion of the intervention, the survey responses of 40 BCS were evaluated using the chi-square test and multiple regression analysis. The Korean versions of the Revised Piper Fatigue Scale and Pittsburgh Fatigability Scale were used to measure fatigue and fatigability, respectively.

Results
There was no significant difference in fatigue or fatigability between the experimental and control groups at intervention completion. However, the control group showed a stronger association than the experimental group between fatigue and physical fatigability. In the control group, fatigue and fatigability were significantly associated with anxiety, depression, sleep disturbance, and endocrine symptoms. In the experimental group, only the cognitive/mood fatigue score and depression were significantly associated. Only endocrine symptoms influenced mental fatigability (B = − 0.185, P < 0.05), and only depression influenced cognitive/mood fatigue (B = 1.469, P < 0.05).

Conclusions
Fatigue and fatigability showed different correlations with cancer-related symptoms after the exercise intervention. Future assessments of fatigability in intervention studies will allow measurement of the spectrum of patients’ abilities to overcome fatigue at various physical activity levels while capturing different aspects of cancer-related symptoms.

Trial registration
This study was retrospectively registered on Clinical Research Information Service (KCT0005763; date of registration: 31/12/2020).
Patients’ perspectives on the experience of absconding from a psychiatric hospital: a qualitative study
Authors: Kaggwa Mark Mohan , Acai Anita , Rukundo Godfrey Zari , Harms Sheila , Ashaba Scholastic 
Published: July 2021

Abstract
Background
Absconding (i.e., escaping) is common among patients with mental illness admitted to psychiatric hospitals. Patients use various strategies to make absconding successful due to the experiences faced during admission. We conducted a study to identify patients’ perspectives on the experience of absconding from the psychiatry facility.

Methods
We conducted 10 in-depth interviews with patients with a history of absconding from the hospital who were accessing care at the Mbarara Regional Referral Hospital in Mbarara city Uganda. Interviews were audio-recorded, translated when required, transcribed into English, and analyzed thematically to identify relevant themes.

Results
Participants ranged in age from 18 to 55 and the majority (n = 9) were male. Most had absconded at least twice from a psychiatric facility. We identified different experiences that influenced patients’ engagement in absconding from the psychiatry hospital ward. These included: (1) stigma, (2) experiences with caregivers: mixed emotions, (3) poor resources and services, and (4) the influence of mental illness symptoms. The loneliness of stigma, negative emotions associated with the loss of important roles given the nature and framework of caregiving on the psychiatric ward, as well as the stress of limited resources were a salient part of the patient experience as it relates to absconding.

Conclusion
Our findings indicate that absconding is a symptom of a larger problem with a mental health system that perpetuates stigma in its design, isolates patients and makes them feel lonely, and forces patients to rely on caregivers who infantilize them and take away all their freedom in a facility with no basic services. For many patients, this makes absconding the only option. Within such a system, all stakeholders (policymakers, health-care providers, caregivers, and patients) should be involved in rethinking how psychiatric facilities should be operated to make the journey of patient recovery more positive.
Population-based utility scores for HPV infection and oropharyngeal squamous cell carcinoma among Indigenous Australians
Authors: Ju Xiangqun , Canfell Karen , Howard Kirsten , Garvey Gail , Hedges Joanne , Smith Megan , Jamieson Lisa 
Published: July 2021

AbstractBackgroundOropharyngeal squamous cell carcinoma (OPSCC) is associated with high mortality. Human papillomavirus (HPV) infection is a significant risk factor for OPSCC. Utilities are fundamental values representing the strength of individuals’ preferences for specific health-related outcomes. Our study aim was to work in partnership with Indigenous communities in South Australia to develop, pilot test and estimate utility scores for health states related to HPV, HPV vaccination, precursor OPSCC and its treatment, and early stage OPSCC among Indigenous Australians.MethodsDevelopment and pilot testing of hypothetical HPV and OPSCC health states, specifically through the lens of being Indigenous Australian, was conducted with an Indigenous Reference Group. Six health states were decided upon, with utility scores calculated using a two-stage standard gamble approach among a large convenience sample of Indigenous Australians aged 18+ years residing in South Australia. The rank, percentage of perfect health and utility score of each health state was summarised using means, and medians at 12 months and lifetime duration. Potential differences by age, sex and residential location were assessed using the Wilcox Rank Sum test.ResultsData from 1011 participants was obtained. The mean utility scores decreased with increasing severity of health states, ranging from 0.91–0.92 in ‘screened, cytology normal, HPV vaccination’ and ‘screened, HPV positive, endoscopy normal’, to less than 0.90 (ranging from 0.87–0.88) in lower grade conditions (oral warts and oral intraepithelial neoplasia) and less than 0.80 (ranging from 0.75–0.79) in ‘early stage throat cancer’. Higher utility scores were observed for ‘screened, cytology normal and HPV vaccination’ among younger participants (18–40 years), for ‘early stage invasive throat cancer’ among females, and for ‘oral intraepithelial neoplasia’ and ‘early stage invasive throat cancer’ among metropolitan-dwelling participants.ConclusionAmong a large sample of Indigenous Australians, utility for oral HPV infection and OPSCC decreased with severity of health states. Older participants, as well as males and those residing in non-metropolitan locations, had decreased utility for high-grade cytology and early invasive cancer states. Our findings are an important contribution to cost-utility and disease prevention strategies that seek to inform policies around reducing HPV infection and OPSCC among all Australians.
Tools for measuring technical skills during gynaecologic surgery: a scoping review
Authors: Hennings Louise Inkeri , Sørensen Jette Led , Hybscmann Jane , Strandbygaard Jeanett 
Published: July 2021

Abstract
Background
Standardised assessment is key to structured surgical training. Currently, there is no consensus on which surgical assessment tool to use in live gynaecologic surgery. The purpose of this review is to identify assessment tools measuring technical skills in gynaecologic surgery and evaluate the measurement characteristics of each tool.

Method
We utilized the scoping review methodology and searched PubMed, Medline, Embase and Cochrane. Inclusion criteria were studies that analysed assessment tools in live gynaecologic surgery. Kane’s validity argument was applied to evaluate the assessment tools in the included studies.

Results
Eight studies out of the 544 identified fulfilled the inclusion criteria. The assessment tools were categorised as global rating scales, global and procedure rating scales combined, procedure-specific rating scales or as a non-procedure-specific error assessment tool.

Conclusion
This scoping review presents the current different tools for observational assessment of technical skills in intraoperative, gynaecologic surgery. This scoping review can serve as a guide for surgical educators who want to apply a scale or a specific tool in surgical assessment.
Experiences and perceptions of perinatal depression among new immigrant Chinese parents: a qualitative study
Authors: Li Qiao , Xue Wenqing , Gong Wenjie , Quan Xin , Li Quanlei , Xiao Lina , Xu Dong , Caine Eric D. , Poleshuck Ellen L. 
Published: July 2021

Abstract
Background
Immigrant status, acculturation level, race and ethnicity have been found to contribute to the utilization of mental health services in the perinatal period. This study explored perinatal experiences and perceptions among Chinese immigrant mothers and their spouses, as well as the possible barriers and facilitators that affect their health care utilization.

Methods
We recruited 13 women ages 18–35 years born in mainland China, living in Rochester, New York, and residing less than 5 years in the United States. Participants primary language was Mandarin Chinese and all had given birth to at least one live infant within the past 7 years. Participants’ age was at least 18 years old at the time of delivery. Five spouses also participated. We divided women in two focus groups and held one focus group for men, with data collection including demographic questionnaires and semi-structured focus group questions conducted in December 2014. Data were analyzed following thematic analysis.

Results
Four themes emerged: experiences of perinatal depression; perceptions of perinatal depression; general preventive and coping strategies; and attitudes toward the supportive use social media applications (apps) and text messaging during the perinatal period. Participants had limited knowledge of perinatal depression and had difficulty distinguishing between normal perinatal mood fluctuations and more severe symptoms of depression. They discussed immigrant-related stress, conflicts with parents/in-laws while “doing the month”, the perceived gap between the ideal of “perfect moms” and reality, and challenges with parenting as the causes of perinatal depression. Women approved of screening for the condition but were conservative about follow-up interventions. As for the management of perinatal depression, participants preferred to deal with the problem within the family before seeking external help, due to potential stigma as well as Chinese traditional culture. They were receptive to obtaining pertinent health information from anonymous social media apps, preferring these to personal text messages.

Conclusion
The recent immigrant Chinese parents to the United States in the study had limited knowledge of perinatal depression and did not make full use of mental health services for support due to language and cultural barriers. Screening for perinatal depression is only the first step. Future research should explore what interventions may serve as an acceptable approach to overcoming these gaps.
Humoral immune responses during SARS-CoV-2 mRNA vaccine administration in seropositive and seronegative individuals
Authors: Fraley Elizabeth , LeMaster Cas , Geanes Eric , Banerjee Dithi , Khanal Santosh , Grundberg Elin , Selvarangan Rangaraj , Bradley Todd 
Published: July 2021

Abstract
Background
The global pandemic of coronavirus disease 2019 (COVID-19) is caused by infection with the SARS-CoV-2 virus. Currently, there are three approved vaccines against SARS-CoV-2 in the USA, including two based on messenger RNA (mRNA) technology that has demonstrated high vaccine efficacy. We sought to characterize humoral immune responses, at high resolution, during immunization with the BNT162b2 (Pfizer-BioNTech) vaccine in individuals with or without prior history of natural SARS-CoV-2 infection.

Methods
We determined antibody responses after each dose of the BNT162b2 SARS-CoV-2 vaccine in individuals who had no prior history of SARS-CoV-2 infection (seronegative) and individuals that had previous viral infection 30–60 days prior to first vaccination (seropositive). To do this, we used both an antibody isotype-specific multiplexed bead-based binding assays targeting multiple SARS-CoV-2 viral protein antigens and an assay that identified potential SARS-CoV-2 neutralizing antibody levels. Moreover, we mapped antibody epitope specificity after immunization using SARS-CoV-2 spike protein peptide arrays.

Results
Antibody levels were significantly higher after a single dose in seropositive individuals compared to seronegative individuals and were comparable to levels observed in seronegative individuals after two doses. While IgG was boosted by vaccination for both seronegative and seropositive individuals, only seronegative individuals had increased IgA or IgM antibody titers after primary immunization. We identified immunodominant peptides targeted on both SARS-CoV-2 spike S1 and S2 subunits after vaccination.

Conclusion
These findings demonstrated the antibody responses to SARS-CoV-2 immunization in seropositive and seronegative individuals and provide support for the concept of using prior infection history as a guide for the consideration of future vaccination regimens. Moreover, we identified key epitopes on the SARS-CoV-2 spike protein that are targeted by antibodies after vaccination that could guide future vaccine and immune correlate development.