bluuebunny/crossref_metadata_2025_split huggingface dataset:
Strong effects of lab-to-field environmental transitions on the bacterial intestinal microbiota ofMus musculusare modulated byTrichuris murisinfection
Authors: Bär Julian , Leung Jacqueline M , Hansen Christina , Loke P'ng , Hall Alex R , Conour Laura , Graham Andrea L 
Published: August 2020

ABSTRACTStudies of controlled lab animals and natural populations represent two insightful extremes of microbiota research. We bridged these two approaches by transferring lab-bred female C57BL/6 mice from a conventional mouse facility to an acclimation room and then to an outdoor enclosure, to investigate how the gut microbiota changes with environment. Mice residing under constant conditions served as controls. Using 16S rRNA sequencing of fecal samples, we found that the shift in temperature and humidity, as well as exposure to a natural environment, increased microbiota diversity and altered community composition. Community composition in mice exposed to high temperatures and humidity diverged as much from the microbiota of mice housed outdoors as from the microbiota of control mice. Additionally, infection with the nematode Trichuris muris modulated how the microbiota responded to environmental transitions: The dynamics of several families were buffered by the nematodes, while invasion rates of two taxa acquired outdoors were magnified. These findings suggest that gut bacterial communities respond dynamically and simultaneously to changes within the host's body (e.g. the presence of nematodes) and to changes in the wider environment of the host.
Topsy-turvy binding of negatively charged homogalacturonan oligosaccharides to galectin-3
Authors: Zheng Yi , Su Jiyong , Miller Michelle C , Geng Jie , Xu Xuejiao , Zhang Tao , Mayzel Maksim , Zhou Yifa , Mayo Kevin H , Tai Guihua 
Published: August 2020

Abstract
Galectin-3 is crucial to many physiological and pathological processes. The generally accepted dogma is that galectins function extracellularly by binding specifically to β(1→4)-galactoside epitopes on cell surface glycoconjugates. Here, we used crystallography and NMR spectroscopy to demonstrate that negatively charged homogalacturonans (HG, linear polysaccharides of α(1→4)-linked-D-galacturonate (GalA)) bind to the galectin-3 carbohydrate recognition domain. The HG carboxylates at the C6 positions in GalA rings mandate that this saccharide bind galectin-3 in an unconventional, “topsy-turvy” orientation that is flipped by about 180o relative to that of the canonical β-galactoside lactose. In this binding mode, the reducing end GalA β-anomer of HGs takes the position of the nonreducing end galactose residue in lactose. This novel orientation maintains interactions with the conserved tryptophan and seven of the most crucial lactose-binding residues, albeit with different H-bonding interactions. Nevertheless, the HG molecular orientation and new interactions have essentially the same thermodynamic binding parameters as lactose. Overall, our study provides structural details for a new type of galectin–sugar interaction that broadens glycospace for ligand binding to Gal-3 and suggests how the lectin may recognize other negatively charged polysaccharides like glycoaminoglycans (e.g. heparan sulfate) on the cell surface. This discovery impacts on our understanding of galectin-mediated biological function.
Factors associated with the utilization of inactivated polio vaccine among children aged 12 to 23 months in Kalungu District, Uganda
Authors: Faith Mirembe Rachel , Juliet Babirye , Tumuhamye Nathan , Mathias Tumwebaze , Sacks Emma 
Published: August 2020

Abstract
Uganda officially introduced the inactivated polio vaccine (IPV) in May 2016 as part of the polio eradication strategy and integrated it into its routine immunization programme in addition to the oral polio vaccine. The current coverage stands at 60% as of July 2017. We therefore aimed to determine factors associated with the uptake of IPV among children in Kalungu District so as to inform the implementation of the vaccine policy. A community-based cross-sectional study was conducted among caregivers of 406 eligible children aged 12–23 months through multi-stage systematic sampling and a standardized semi-structured questionnaire. Nine key informant interviews were conducted through purposive selection of health care providers and members of Village Health Teams (VHTs) based on their expertize. Modified Poisson regression and thematic content analysis were used to determine factors significant to IPV uptake among children. 71% of sampled children aged 12–23 months had received IPV in Kalungu District. The survey found that being encouraged by health workers and VHTs was significant to children’s uptake of IPV (Adjusted PR 1.24, 95% CI; 1.22–3.47). Distance to the immunization point (Adjusted PR 0.32,95% CI; 0.16–0.62) and caregiver’s education level (Adjusted PR 1.16,95% CI; 1.05–2.22) were also associated with IPV uptake. Qualitative findings from health workers and VHT members further confirmed the perception that distance to the immunization post was important, and VHTs also stated that being encouraged by health workers was critical to IPV uptake. The current prevalence of IPV uptake among children aged 12–23 months in Kalungu is 71%, higher than the last reported national coverage (60%), though still below the recommended national coverage of 95%. Efforts should be focused on sensitization of caregivers through health workers and VHTs. Immunization outreach should be strengthened so as to bring services closer to patients.
How ready is the system to deliver primary healthcare? Results of a primary health facility assessment in Enugu State, Nigeria
Authors: Ekenna Adanma , Itanyi Ijeoma Uchenna , Nwokoro Ugochukwu , Hirschhorn Lisa R , Uzochukwu Benjamin 
Published: August 2020

Abstract
Primary health centres are an effective means of achieving access to primary healthcare (PHC) in low- and middle-income countries. We assessed service availability, service readiness and factors influencing service delivery at public PHC centres in Enugu State, Nigeria. We conducted a cross-sectional study of 60 randomly selected public health centres in Enugu using the World Health Organization’s Service Availability and Readiness Assessment (SARA) survey. The most senior health worker available was interviewed using the SARA questionnaire, and an observational checklist was used for the facility assessment. None of the PHC centres surveyed had all the recommended service domains, but 52 (87%) offered at least half of the recommended service domains. Newborn care and immunization (98.3%) were the most available services across facilities, while mental health was the least available service (36.7%). None of the surveyed facilities had a functional ambulance or access to a computer on the day of the assessment. The specific-service readiness score was lowest in the non-communicable disease (NCD) area (33% in the rural health centres and 29% in the urban health centres) and NCD medicines and supplies. Availability of medicine and supplies was also low in rural PHC centres for the communicable disease area (36%) and maternal health services (38%). Basic equipment was significantly more available in urban health centres (P = 0.02). Urban location of facilities and the presence of a medical officer were found to be associated with having at least 50% of the recommended infrastructure / basic amenities and equipment. Continuing medical education, funding and security were identified by the health workers as key enablers of service delivery. In conclusion, despite a focus on expanding primary care in Enugu State, significant gaps exist that need to be closed for PHC to make significant contributions towards achieving universal healthcare, core to achieving the health-related Sustainable Development Goal agenda.
Integrative Comparative Cognition: Can Neurobiology and Neurogenomics Inform Comparative Analyses of Cognitive Phenotype?
Authors: Burmeister Sabrina S , Liu Yuxiang 
Published: August 2020

Synopsis
A long-standing question in animal behavior is what are the patterns and processes that shape the evolution of cognition? One effective way to address this question is to study cognitive abilities in a broad spectrum of animals. While comparative psychologists have traditionally focused on a narrow range of organisms, today they may work with any number of species, from frogs to birds or bees. This broader range of study species has greatly enriched our understanding of the diversity of cognitive processes among animals. Yet, this diversity has highlighted the fundamental challenge of comparing cognitive processes across animals. An analysis of the neural and molecular mechanisms of cognition may be necessary to solve this problem. The goal of our symposium was to bring together speakers studying a range of species to gain a broadly integrative perspective on cognition while at the same time considering the potentially important role of neurobiology and genomics in addressing the difficult problem of comparing cognition across species. For example, work by MaBouDi et al. indicates that neural constraints on computing power may impact the cognitive processes underlying numerical discrimination in bees. A presentation by Lara LaDage demonstrated how neurobiology can be used to better understand cognition and its evolution in reptiles while Edwards et al. identify the cerebellum as potentially important in the performance of the complex process of nest building. We see that molecular approaches highlight the contributions of the prefrontal cortex and hippocampus to cognitive phenotype across vertebrates while, at the same time, identifying the genes and cellular processes that may contribute to evolution of cognition. The potentially important role of neurogenesis and synaptic plasticity emerge clearly from such studies. Still unanswered is the question of whether molecular tools will contribute to our ability to discriminate convergent/parallel evolution from homology in the evolution of cognitive phenotype.
Clinical experience with SUBA-itraconazole at a tertiary paediatric hospital
Authors: Abbotsford Joanne , Foley David A , Goff Zoy , Bowen Asha C , Blyth Christopher C , Yeoh Daniel K 
Published: August 2020

Abstract

Background
Itraconazole remains a first-line antifungal agent for certain fungal infections in children, including allergic bronchopulmonary aspergillosis (ABPA) and sporotrichosis, but poor attainment of therapeutic drug levels is frequently observed with available oral formulations. A formulation of ‘SUper BioAvailability itraconazole’ (SUBA-itraconazole; Lozanoc®) has been developed, with adult studies demonstrating rapid and reliable attainment of therapeutic levels, yet paediatric data are lacking.

Objectives
To assess the safety, efficacy and attainment of therapeutic drug levels of the SUBA-itraconazole formulation in children.

Methods
A single-centre retrospective cohort study was conducted, including all patients prescribed SUBA-itraconazole from May 2018 to February 2020. The recommended initial treatment dose was 5 mg/kg twice daily (to a maximum of 400 mg/day) rounded to the nearest capsule size and 2.5 mg/kg/day for prophylaxis.

Results
Nineteen patients received SUBA-itraconazole and the median age was 12 years. The median dose was 8.5 mg/kg/day and the median duration was 6 weeks. Indications included ABPA (16 patients), sporotrichosis (1), cutaneous fungal infection (1) and prophylaxis (1). Of patients with serum levels measured, almost 60% (10/17) achieved a therapeutic level, 3 with one dose adjustment and 7 following the initial dose. Adherence to dose-adjustment recommendations amongst the seven patients not achieving therapeutic levels was poor. Of patients with ABPA, 13/16 (81%) demonstrated a therapeutic response in IgE level. SUBA-itraconazole was well tolerated with no cessations related to adverse effects.

Conclusions
SUBA-itraconazole is well tolerated in children, with rapid attainment of therapeutic levels in the majority of patients, and may represent a superior formulation for children in whom itraconazole is indicated for treatment or prevention of fungal infection.
One-minute Preceptors in Action: Breast Radiologists and the Medical Student General Radiology Elective
Authors: Lee Sheila S , Beck Dallaghan Gary L , Oldan Jorge D , Jordan Sheryl G 
Published: August 2020

Abstract
Breast imaging, with its unique patient-facing, multimodality, and multidisciplinary workflow, offers opportunities to engage medical students enrolled in a general radiology rotation and to highlight the role of the radiologist in patient care. At a time when breast radiologists face unprecedented challenges in delivering safe and efficient imaging services, however, accommodating larger numbers of medical students can overwhelm reading rooms, dilute meaningful learning experiences for the student, and place further demands on faculty. In order to meet the students’ and clinician educators’ needs, Neher’s one-minute preceptor teaching strategy is used to create a high-yield learning environment in a short amount of time. In this model, the breast radiologist weaves together multiple impactful and varied learning experiences in only 8 to 12 total hours of structured student exposure during the 160-hour general radiology course. We describe our adaptation of this technique and the positive impact that a short breast imaging component had on our general radiology medical student rotation. This standardized curriculum is easily adaptable to a variety of learning styles. It contributes to medical students’ understanding of the various facets of radiology through direct participation and exceeds education goals set forth by the Alliance of Medical Student Educators in Radiology. Students’ evaluations of the general radiology rotation demonstrated a sharp uptick in the year following the adoption of the technique, and students’ rotation final examination mean scores on the breast questions were higher for students who participated at least eight hours on service in the breast radiology clinic.
Characterization of a New Set of Microsatellite Markers Suggests Polygyny and Polyandry in Atta cephalotes (Hymenoptera: Formicidae)
Authors: Muñoz-Valencia Vanessa , Kähkönen Kirsi , Montoya-Lerma James , Díaz Fernando 
Published: August 2020

AbstractThe leaf-cutting ant, Atta cephalotes L. (1758), is a major herbivore with great economic impact in the Neotropics. Because of its broad range and human-mediated dissemination, the ecology of this ant has received considerable attention; however, questions concerning its population genetics, dispersal, and social structure remain unexplored. Here, we aimed to identify and provide information on molecular and statistical performance of a suite of polymorphic microsatellite markers for A. cephalotes while demonstrating their utility for further genetic studies. We designed primer sequences targeting thousands of microsatellite loci and then screened 30 of these for amplification and polymorphism. Fifteen of these loci were selected and used to evaluate their polymorphism using 74 ants sampled from 15 different nests of the same location. This set of 15 loci exhibited variation of 2–20 alleles, with a mean heterozygosity of 0.57. All loci followed Hardy–Weinberg expectations with no evidence of linkage disequilibrium, while two loci showed evidence of null alleles. Our preliminary analysis suggested substantial nest differentiation with no population viscosity within the sampled location, as well as colonies with multiple queens (polygyny) and paternity (polyandry). Our newly identified microsatellites have proven to be highly informative to investigate gene flow, social structure and reproduction of this key agricultural pest.
Does the Effect of Irradiation Dose Vary Between Flies Selected and Non-selected to Resist Desiccation? The Case ofAnastrepha ludens(Diptera: Tephritidae)
Authors: Arredondo José , Aguirre-Medina Juan F , Meza José S , Cancino Jorge , Díaz-Fleischer Francisco 
Published: August 2020

AbstractThe sterile insect technique (SIT), used to control different species of tephritid fruit flies (Diptera: Tephritidae), is an important element in sustainable agriculture because of its low negative impact on the environment. In SIT, flies are mass produced and sterilized in the laboratory and then released in a target area. However, once released, laboratory flies may confront harass environments that would reduce their performance and consequently SIT efficiency. Selecting flies that resist stressful conditions may help to improve the efficiency of the SIT by releasing males that resist desiccation, for example, ensuring, thus, their survival in environments with low relative humidity. However, the selection process may affect the resistance of flies to the stress of sterilization, since some life history traits are affected. Here, we studied the effect of irradiation on Anastrepha ludens (Loew) (Diptera: Tephritidae) desiccation resistant flies (DR) compared with nonselected flies (NS). We measured the effect of gamma irradiation dose (0, 20, 40, 60, and 80 Gy) on sterility (males and females) and quality parameters (emergence, flight ability, survival, and male sexual performance) in A. ludens adults of the DR and NS (control) strains. Our results indicate that irradiation affected equally the sterility of adults of both strains. None of the quality parameters differed between strains. The only difference was that DR flies survived longer than control flies. Thus, flies that are resistant to desiccation can be used in the SIT without altering the current process of irradiation and packing.
The long-term impact of Italian colonial roads in the Horn of Africa, 1935–2015
Authors: Bertazzini Mattia C 
Published: August 2020

Abstract
This article exploits the quasi-natural experiment provided by the extensive road network that was built across the Horn of Africa during the Italian occupation of Ethiopia (1936–1941), to examine how a first-mover advantage in transportation can affect the spatial distribution of economic activity in developing countries over the long run. The results show that Italian paved roads rendered areas located within 10 km of them significantly more populated, urbanized and luminous around 2010, relative to comparable, more distant locations. Early roadbuilding lifted first-mover locations out of isolation and allowed for net welfare gains, thanks to a reduction in transport costs and specialization. To this day, first-mover locations continue to diverge from the control group, due to a coordination mechanism that led to an oversupply of governmental facilities in the post-colonial period.
Construction of the Antheraea pernyi (Lepidoptera: Saturniidae) Multicapsid Nucleopolyhedrovirus Bacmid System
Authors: Ye Bo , Zhao Zhenjun , Yue Dongmei , Li Peipei , Wang Linmei , Zhang Bo , Fan Qi 
Published: August 2020

Abstract
In this study, we established the Antheraea pernyi multicapsid nucleopolyhedrovirus (AnpeNPV) bacmid system for the construction of a Bac-to-Bac expression system and the generation of virus mutants. The CopyRight pSMART BAC cloning vector harboring the chloramphenicol resistance gene was introduced into the AnpeNPV genome to produce the AnpeNPV bacmid that could be propagated in Escherichia coli with stable replication. The enhanced green fluorescent protein (EGFP) was successfully expressed in both Tn-Hi5 cells and A. pernyi pupae using the AnpeNPV Bac-to-Bac expression system. To generate the AnpeNPV mutants, we developed the AnpeNPV bacmid/λ Red recombination system that facilitated the deletion of viral genes from the AnpeNPV genome. The genes cathepsin and chitinase were deleted and a derivative AnpeNPV Bac-to-Bac expression system was constructed. Furthermore, we demonstrated that the novel expression system could be used to express human epidermal growth factor in A. pernyi pupae. Taken together, the AnpeNPV bacmid system provides a powerful tool to create the AnpeNPV Bac-to-Bac expression system for protein expression in A. pernyi pupae. Further, it helps to knock-out genes from the AnpeNPV genome with λ Red recombination system for identification of the role of viral genes involved in regulating gene expression, DNA replication, virion structure, and infectivity during the AnpeNPV infection process.
Assessment of the N- and P-Fertilization Effect of Black Soldier Fly (Diptera: Stratiomyidae) By-Products on Maize
Authors: Gärttling Daniel , Kirchner Sascha M , Schulz Hannes 
Published: August 2020

Abstract
To meet the growing demand for an alternative animal protein source, the Black Soldier Fly (BSF) (Hermetia illucens) industry is expanding. Thus, the valuation of its byproducts, foremost BSF frass, is getting more economic and ecological weight. Three different residues, BSF frass, larval skins, and dead adult flies, were compared with a mineral and an organic commercial fertilizer in a pot trial with maize (Zea mays L., [Poales: Poaceae]). byproducts were applied in three nutrient-based application rates (180; 215 kg N/ha; 75 kg P2O5/ha), and plant nutrients, physiological and yield parameters were measured at harvest date. Ground flies had the highest N-fertilizing effect of all byproducts, similar to commercial mineral and organic fertilizers used as controls, whereas its proportion of the BSF production systems’ output is low. Frass as the abundant byproduct showed comparably low N-fertilization effects. Its low N availability was attributed to volatilization losses, mainly driven by high pH and ammonium contents. BSF frass as the main byproduct output is more suited as a basic fertilizer or potting substrate amendment than as a short-term organic fertilizer. Postprocessing of frass seems reasonable. For a profound assessment of frass as fertilizer, several aspects (e.g., the overall impact of postprocessing, plant strengthening and plant protection potential, effects on microbial processes) must be clarified.
Karyotypic polymorphism ofCrocidura tanakae(Eulipotyphla: Soricidae) and revision of the karyotype ofC. attenuatain mainland China
Authors: Li Haotian , Mo Xinmin , Sun Huimei , Wang Jing , Motokawa Masaharu , Harada Masashi , Wu Yi , Li Yuchun 
Published: August 2020

AbstractConventional karyotypes of Crocidura tanakae and C. attenuata collected from mainland China were examined by bone marrow and cell culture methods along with identification to species using molecular data. In contrast to C. tanakae from Taiwan, populations from mainland China were karyotypically polymorphic, varying in diploid number (2n) from 24 to 40 and fundamental number (FN) from 45 to 56. Autosomes are composed of 6–20 metacentric or submetacentric chromosomes, 0–8 subtelocentric chromosomes, and 0–24 telocentric chromosomes. These polymorphic karyotypes indicate the presence of two geographically separated races. The ancestral karyotype of C. tanakae potentially is the same as currently found on Taiwan: 2n = 40 and FN = 56. In contrast to C. tanakae, C. attenuata had a uniform karyotype (2n = 40, FN = 54) in mainland China, suggesting that previously reported karyotypic polymorphism in this species was an error due to the morphological crypsis between C. tanakae and C. attenuata in mainland China. The intricate karyotypic polymorphism of C. tanakae may be indicative of this species undergoing speciation.
Back from the brink: a reversible cardiac cause of fetal hydrops
Authors: Lloyd David , Simpson John , Zedere Vita 
Published: August 2020

Abstract
Fetal hydrops is a form of cardiovascular decompensation unique to fetal physiology, with a wide range of potential causes. In many conditions, it is associated with poor fetal outcome. This chapter explores a challenging case of fetal hydrops, discussing differential diagnoses, methods of echocardiographic assessment, and potential management options. Successful identification and treatment of the underlying cardiac disorder in this case led to complete resolution of hydrops, allowing for full-term delivery, with a good long-term prognosis.