bluuebunny/crossref_metadata_2025_split huggingface dataset:
Concerns about Suicide among Asian Americans: The Need for Outreach?
Authors: Leung Carol A 
Published: March 2020

Abstract
Suicide was the ninth leading cause of death for Asian Americans in 2017. The growth of Asian American populations has led to more discussions about suicide prevention efforts. A 128-item needs assessment survey was administered at cultural events in 10 predominantly immigrant Asian communities. In five years, 1,840 respondents (61 percent response rate) filled out the survey anonymously to express their health and mental health concerns. This study aims to identify factors and help-seeking behaviors associated with having suicidal concerns among Asian Americans in various subgroups. Among the respondents, 1,314 rated the intensity of their concerns about suicide with an average of 0.74 (SD = 1.11) on a four-point rating scale in that 13.7 percent rated their concerns as severe. Taiwanese respondents expressed the highest intensity score (1.09) compared with other ethnic groups (from 0.29 to 1.04). A logistic regression analysis found that each unit of health concerns on a four-point rating scale significantly increases the likelihood of suicide concerns by 46 times among Asian Americans. Consistent with previous studies, immigrants were likely to share mental health problems with friends and physicians. Effective suicide prevention requires mental health awareness programming for the Asian American community.
Recent progress in treating advanced prostate cancer
Authors: Gourdin Theodore 
Published: March 2020

Purpose of review
Summarize recent advances in the treatment of advanced prostate cancer.

Recent findings
Recent randomized data suggest a survival advantage to early use of novel androgen receptor inhibitors in combination with androgen deprivation therapy both in the setting of hormone-sensitive metastatic prostate cancer and nonmetastatic castration-resistant disease. While ongoing analyses examine optimal sequencing of existing agents for treatment of advanced prostate cancer, additional research focuses on expanding treatment options through development of novel genomically targeted therapies, antibody–drug conjugates, and immune therapy combinations.

Summary
In this review, we summarize the recent data supporting the early use of novel androgen receptor inhibitors in advanced prostate cancer and aim to also frame how these drugs may fit within the existing context of docetaxel and abiraterone. We present recent series examining sequencing of approved therapies while searching for predictive biomarkers. Finally, we examine trials evaluating novel agents that target certain biological pathways to highlight the likely future directions for progress in the clinical management of advanced prostate cancer.
Epidemiology of head and neck cancers: an update
Authors: Aupérin Anne 
Published: March 2020

Purpose of reviewThis review attempts to give an update of epidemiological knowledge on head and neck cancers (HNC).Recent findingsWorldwide, from 1990 to 2017, incidence rates for larynx and nasopharyngeal cancers decreased, whereas they increased for oro/hypopharyngeal cancers and lip/oral cavity cancers. They are still markedly higher among men than women. South Asia has the highest HNC incidence rate, followed by Europe, North America, and Australasia.Tobacco and alcohol remain the major risk factors. Rate of cancers attributable to human papillomavirus (HPV) among HNCs is highly depending on world region and tobacco use prevalence. It increases in high-income countries. In the US population, the number of HPV-attributable oropharyngeal cancers now exceeds the number of cervix cancers. HPV vaccination for boys is recommended in an increasing number of countries. Many occupations are associated with an increased HNC risk. Fruits and vegetables intake have a protective effect against HNC.SummaryTo decrease HNC incidence, measures to reduce tobacco use and alcohol consumption remain essential. Improvement of HPV vaccination coverage is also a major objective. Reduction of carcinogens at occupation, protection of workers from carcinogen exposures, education for better diet, and easy and affordable access to fruits and vegetables can contribute to incidence decrease.
Cardioprotective Effects of Latifolin Against Doxorubicin-Induced Cardiotoxicity by Macrophage Polarization in Mice
Authors: Zhang Ni , Shou Binyao , Chen Lanying , Lai Xiaoxiao , Luo Yingying , Meng Xiaowei , Liu Ronghua 
Published: March 2020

Abstract:
Latifolin, one of the major flavonoids extracted from lignum dalbergiae odoriferae, has been documented to protect the heart from acute myocardial ischemia induced by pituitrin and isoproterenol in rats and has also been found to inhibit inflammation. In this study, we aimed to investigate whether latifolin could protect the heart from doxorubicin (DOX)-induced cardiotoxicity and elucidate its underlying mechanisms. Male mice were treated with an intraperitoneal dose of DOX (20 mg/kg) plus oral latifolin at a dose of 50 or 100 mg/kg for 12 days. After exposure, we assessed cardiac function, myocardial injury, and macrophage polarization in excised cardiac tissue. Our results demonstrated that latifolin prevented DOX-induced cardiac dysfunction and produced macrophage polarization in mice challenged with latifolin. In cultured peritoneal macrophages, latifolin significantly reduced inflammatory cytokines (P < 0.05). Furthermore, latifolin remarkably decreased the percentage of macrophage M1/M2 polarization (P < 0.05). The results from the present study highlight the benefits of treatment with latifolin in DOX-induced cardiotoxicity, and the mechanism involved in mediating the polarization phenotype change of M1/M2 macrophages.
Controversies in Surgical Management of Lymphedema
Authors: Hanson Summer E. , Chang Edward I. , Schaverien Mark V. , Chu Carrie , Selber Jesse C. , Hanasono Matthew M. 
Published: March 2020

Summary:
Surgical treatment of lymphedema has expanded in recent years. Lymphovenous bypass and vascularized lymph node transfer are both modern techniques to address the physiologic dysfunction associated with secondary lymphedema. While efficacy of both techniques has been demonstrated in numerous studies, there are several questions that remain. Here, the authors discuss the most pertinent controversies in our practice as well as the current state of surgical management of lymphedema.
Evolution in Surgical Management of Breast Cancer-related Lymphedema: The MD Anderson Cancer Center Experience
Authors: Chang Edward I. , Schaverien Mark V. , Hanson Summer E. , Chu Carrie K. , Hanasono Matthew M. 
Published: March 2020

Introduction:
Lymphedema is a lifelong, debilitating condition that plagues a large portion of patients who have undergone multimodality therapy for breast cancer. With the increasing experience in supermicrosurgical treatment of lymphedema, reconstructive surgeons have made a tremendous impact in improving the quality of life of patients suffering from breast cancer related lymphedema.

Methods:
Historical review of our evolution in treatment and management of breast cancer related lymphedema and implementation of our new algorithm. Retrospective review of patients who have undergone both the lymphovenous bypass and vascularized lymph node transfer with autologous breast reconstruction.

Results:
The combined Breast Reconstruction Including Lymphovenous bypass and Inguinal to Axillary Node Transfer (BRILIANT) demonstrates promising outcomes. Thirty-eight patients (average age: 52.9 years, average BMI: 32.6 kg/m2) who have undergone the BRILIANT approach have all demonstrated improvements in their lymphedema. With an average follow-up of 19.1 months, no patients suffered a post-operative cellulitis, and 81.6% of patients also demonstrated a volume reduction.

Conclusion:
Our new algorithm combining breast reconstruction with lymphedema surgery represents an evolution in our approach to treatment of breast cancer related lymphedema has demonstrated promising results with long-term outcomes.
Pectoral Fascia Preservation in Oncological Mastectomy to Reduce Complications and Improve Reconstructions: A Systematic Review
Authors: Suijker Jaco , Blok Yara L. , de Vries Ralph , van den Tol Monique P. , Krekel Nicole M. A. 
Published: March 2020

Background:
Excision of the pectoral fascia (PF) is routinely performed in oncological mastectomies. Preservation of the PF may, however, decrease postoperative complication rates for bleeding, infections, and seroma. It may also improve reconstructive outcomes by better prosthesis coverage, thereby reducing implant extrusion rates and improving cosmetic outcomes.

Methods:
A systematic review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis principles was performed. Studies describing PF preservation were searched in 3 databases. All studies including more than 10 patients were included. The main outcomes were oncological safety (local recurrence, regional and distant metastases, and mortality rates), complication rates (bleeding, infections, seroma), loss of the prosthesis after reconstructive surgery, and cosmetic outcomes following reconstruction.

Results:
Five studies were included. Three reported on 2 different randomized controlled trials (n = 73, and n = 244), and 2 studies were retrospective case series (n = 203 and n = 256). PF preservation did not affect oncological outcomes in terms of local recurrences, regional and distant metastases, or mortality rates. One study described a significantly lower incidence of seroma in the PF preservation group. No differences were found for bleeding complications and infections. No objective data were provided for reconstructive complications or cosmetic outcomes.

Conclusions:
The literature on PF preservation is scarce. Based on the current evidence, PF preservation seems oncologically safe while potentially reducing postoperative complication rates. It is expected that reconstructive outcomes will benefit from PF preservation, but these studies lack evidence on this topic. Future studies should provide insight into all aspects of PF preservation.
Surgical and Nonsurgical Pediatric Hand Fractures: A Cohort Study
Authors: Hartley Rebecca L. , Lam Josh , Kinlin Ceilidh , Hulin Karen , Temple-Oberle Claire , Harrop A. Robertson , Fraulin Frankie O. G. 
Published: March 2020

Background:
Pediatric hand fractures are common and approximately 10% require surgery.

Methods:
This retrospective cohort study reports on hand fractures in a large pediatric population and identifies the characteristics and patterns of fractures that required surgical correction. A χ2 analysis was done to evaluate the association between individual fracture variables and surgery. The STROBE checklist was applied.

Results:
One thousand one-hundred seventy-three hand fractures were reviewed. Peak age was 16 years for boys and 14 years for girls. Most fractures were closed (96.0%) and nonrotated (91.3%), and had no concomitant soft tissue injury (72.7%). More than half (56.3%) were nonepiphyseal plate fractures; yet as a single diagnosis, Salter–Harris II fractures were most common (30.2%). The following variables were significantly associated with surgery: open fractures, rotational deformity, distal phalangeal fracture location, multiple fractures, oblique pattern, comminution, displacement >2 mm, intra-articular involvement, and angulation >15°. Most fractures required only immobilization and early range of motion (64.3%). Closed reduction was required in 22.7%. Minor surgery by the primary provider was performed in 3.2% of fractures. Surgery by a hand surgeon was performed in 9.8%. The most common patterns requiring surgery were proximal or middle phalanx head or neck fractures (38.2%) and metacarpal midshaft fractures (20.9%). The most common operation was open reduction internal fixation (52.2%).

Conclusions:
Pediatric hand fractures are common, but 90.2% do not require surgery and, as such, primary providers play a key role in management. Certain fracture variables and patterns are more likely to lead to surgery.
Tissue Expander Scrotal Reconstruction
Authors: Hollins Andrew , Mundy Lily R. , Atia Andrew , Levites Heather , Peterson Andrew , Erdmann Detlev 
Published: March 2020

Summary:
Fournier’s gangrene is a life-threatening soft tissue infection requiring aggressive debridement of the perineum. Surgical debridement results in large defects of the scrotum requiring reconstruction for functional coverage of the testes. Several studies have described scrotal reconstruction utilizing split thickness skin grafts or local flaps. These procedures create additional morbidity in an unhealthy patient population. This report describes a patient who presents for delayed scrotal reconstruction utilizing tissue expansion. Tissue expander-based reconstruction provides reconstruction of native scrotal soft tissue without additional donor site morbidity. A 40-year-old man presented to an outside hospital with Fournier’s gangrene and underwent significant soft tissue debridement. He had an almost complete loss of his native scrotum with his testes surgically banked in his bilateral thighs. He presented to our clinic for a delayed scrotoplasty. The patient was taken to the operating room and a single tissue expander was inserted into the perineum. He underwent serial insufflations in the clinic setting and returned to the operating room for expander removal and scrotal reconstruction. The patient followed up in clinic 4 months postoperatively with a well-healed scrotoplasty. Our case report demonstrates a 2-stage procedure for patients presenting with significant soft tissue loss of the perineum. This reproducible method of reconstruction can be considered for excellent aesthetic and functional scrotoplasty.
Investigating Lower Limb Hemodynamics during Flap Training Regimens and Patient-led Isometric Contraction Protocols
Authors: Geoghegan Luke , Kwasnicki Richard M. , Henton John M. D. , Hettiaratchy Shehan , Jain Abhilash 
Published: March 2020

Summary:
The evidence for lower limb flap (LLF) training regimens is equivocal. The commonest cause of LLF failure is venous congestion. The aim of this study was to investigate whether venous congestion could be reduced by patient-led isometric calf contractions during flap training. A prospective clinical study was conducted using photospectroscopy and laser Doppler (Oxygen to See) to assess healthy limbs and LLF characteristics during flap training and isometric calf contractions. Tissue oxygen saturation, venous congestion, and blood flow were measured at rest, as well as during and after limb dangling and calf contraction exercises. In the acute postoperative period following LLF surgery, dependency markedly reduced superficial flow (−55.20% ± 19.17%), with a concurrent increase in venous congestion (33.80% ± 28.80%); supine isometric contractions improved superficial flow and reduced venous congestion from postoperative day 5. Contractions cause a significant increase in blood flow in the outpatient cohort (+84.40% ± 7.86%, P = 0.009), with a mean time since discharge of 14 weeks. Our data suggest patient-led isometric calf exercises are well tolerated and may reduce venous congestion in the acute phase. Progressive changes toward normal physiological function were demonstrated in the outpatient rehabilitation period. Incorporating calf exercises into LLF rehabilitation may allow longer periods of leg dependency, quicker recovery from surgery, and ultimately improve outcomes.
High-Resolution Computed Tomography Manifestations of 5 Pediatric Patients With 2019 Novel Coronavirus
Authors: Liu Mengqi , Song Zongbiao , Xiao Kaihu 
Published: March 2020

Abstract
We present clinical and chest computed tomography (CT) features of 5 cases of pediatric patients with 2019 novel coronavirus. Two patients had fever and dry cough, whereas the rest of 3 patients were asymptomatic. Three patients had unilateral ground glass opacities with or without consolidation in the subpleural region on high-resolution chest CT, 1 patient had bilateral ground glass opacities, and 1 patient was negative for CT. We note that up to 66.7% asymptomatic patients had pulmonary lesions, so the asymptomatic children with Wuhan contact are recommended to do a 2019 novel coronavirus real-time fluorescence polymerase chain reaction screening. Unlike adult patients, only a small amount of patients had multilobes affected, so we speculate that the pediatric patients generally have milder CT findings than adults.
Genome expansion in early eukaryotes drove the transition from lateral gene transfer to meiotic sex
Authors: Colnaghi Marco , Lane Nick , Pomiankowski Andrew 
Published: March 2020

ABSTRACTProkaryotes generally reproduce clonally but can also acquire new genetic material via lateral gene transfer (LGT). Like sex, LGT can prevent the accumulation of deleterious mutations predicted by Muller’s ratchet for asexual populations. This similarity between sex and LGT raises the question why did eukaryotes abandon LGT in favor of sexual reproduction? Understanding the limitations of LGT provides insight into this evolutionary transition. We model the evolution of a haploid population undergoing LGT at a rateλand subjected to a mutation rateμ. We take into account recombination length,L, and genome size,g, neglected by previous theoretical models. We confirm that LGT counters Muller’s ratchet by reducing the rate of fixation of deleterious mutations in small genomes. We then demonstrate that this beneficial effect declines rapidly with genome size. Populations with larger genomes are subjected to a faster rate of fixation of deleterious mutations and become more vulnerable to stochastic frequency fluctuations. Muller’s ratchet therefore generates a strong constraint on genome size. Importantly, we show that the degeneration of larger genomes can be resisted by increases in the recombination length, the average number of contiguous genes drawn from the environment for LGT. Large increases in genome size, as in early eukaryotes, are only possible asLreaches the same order of magnitude asg. This requirement for recombination across the whole genome can explain the strong selective pressure towards the evolution of sexual cell fusion and reciprocal recombination during early eukaryotic evolution – the origin of meiotic sex.
Designing Topographically Textured Microparticles for Induction and Modulation of Osteogenesis in Mesenchymal Stem Cell Engineering
Authors: Amer Mahetab H. , Alvarez-Paino Marta , McLaren Jane , Pappalardo Francesco , Trujillo Sara , Wong Jing Qian , Shrestha Sumana , Abdelrazig Salah , Stevens Lee A. , Lee Jong Bong , Kim Dong-Hyun , González-García Cristina , Needham David , Salmerón-Sánchez Manuel , Shakesheff Kevin M. , Alexander Morgan R. , Alexander Cameron , Rose Felicity RAJ 
Published: March 2020

AbstractMesenchymal stem cells have been the focus of intense research in bone development and regeneration. We demonstrate the potential of microparticles as modulating moieties of osteogenic response by utilizing their architectural features. Topographically textured microparticles of varying microscale features were produced by exploiting phase-separation of a readily-soluble sacrificial component from polylactic acid. The influence of varying topographical features on primary human mesenchymal stem cell attachment, proliferation and markers of osteogenesis was investigated. In the absence of osteoinductive supplements, cells cultured on textured microparticles exhibited notably increased expression of osteogenic markers relative to conventional smooth microparticles. They also exhibited varying morphological, attachment and proliferation responses. Significantly altered gene expression and metabolic profiles were observed, with varying histological characteristicsin vivo. This study highlights how tailoring topographical design offers cell-instructive 3D microenvironments which allow manipulation of stem cell fate by eliciting the desired downstream response without use of exogenous osteoinductive factors.
PathFlow-MixMatch for Whole Slide Image Registration: An Investigation of a Segment-Based Scalable Image Registration Method
Authors: Levy Joshua J. , Jackson Christopher R. , Haudenschild Christian C. , Christensen Brock C. , Vaickus Louis J. 
Published: March 2020

AbstractImage registration involves finding the best alignment between different images of the same object. In these tasks, the object in question is viewed differently in each of the images (e.g. different rotation or light conditions, etc.). In digital pathology, image registration aligns correspondent regions of tissue from different stereotactic viewpoints (e.g. subsequent deeper sections of the same tissue). These comparisons are important for histological analysis and can facilitate previously unavailable manipulations, such as 3D tissue reconstruction and cell-level alignment of immunohistochemical (IHC) and special stains. Several benchmarks have been established for evaluating image registration techniques for histological tissue; however, little work has evaluated the impact of scaling registration techniques to Giga-Pixel Whole Slide Images (WSI), which are large enough for significant memory limitations, and contain recurrent patterns and deformations that hinder traditional alignment algorithms. Furthermore, as tissue sections often contain multiple, discrete, smaller tissue fragments, it is unnecessary to align an entire image when the bulk of the image is background whitespace and tissue fragments’ orientations are often agnostic of each other. We present a methodology for circumventing large-scale image registration issues in histopathology and accompanying software. By removing background pixels, parsing the slide into discrete tissue segments, and matching, orienting and registering smaller segment pairs, we recovered registrations with lower Target Registration Error (TRE) when compared to utilizing the unmanipulated WSI. We tested our technique by having a pathologist annotate landmarks from 13 pairs of differently stained liver biopsy slides, performing WSI and segment-based registration techniques, and comparing overall TRE. Preliminary results demonstrate superior performance of registering segment pairs versus registering WSI (difference of median TRE of 44 pixels, p<0.001). Segment matching within WSI is an effective solution for histology image registration but requires further testing and validation to ensure its viability for stain translation and 3D histology analysis.
Asparagine hydroxylation is likely to be a reversible post-translational modification
Authors: Rodriguez Javier , Haydinger Cameron D , Peet Daniel J , Nguyen Lan K , von Kriegsheim Alex 
Published: March 2020

AbstractAmino acid hydroxylation is a common post-translational modification, which generally regulates protein interactions or adds a functional group that can be further modified. Such hydroxylation is currently considered irreversible, necessitating the degradation and re-synthesis of the entire protein to reset the modification. Here we present evidence that the cellular machinery can reverse FIH-mediated asparagine hydroxylation on intact proteins. These data suggest that asparagine hydroxylation is a flexible and dynamic post-translational modification akin to modifications involved in regulating signalling networks, such as phosphorylation, methylation and ubiquitylation.