bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalence of hepatitis B antiviral drug resistance variants in North American patients with chronic hepatitis B not receiving antiviral treatment
Authors: Lok A. S. , Ganova‐Raeva L. , Cloonan Y. , Punkova L. , Lin H.‐H. S. , Lee W. M. , Ghany M. G. 
Published: June 2017

SummaryAntiviral drug resistance hepatitis B virus (HBV) variants (HBV‐DR) occur spontaneously in chronic hepatitis B (CHB) patients and after exposure to nucleos(t)ide analogues (NUCs). We determined the prevalence of HBV‐DR variants among participants of the Hepatitis B Research Network (HBRN) Cohort Study conducted at 21 sites in the United States (US) and Canada. Samples obtained from 1342 CHB participants aged ≥18 years, and who were currently not receiving NUCs, were tested for HBV‐DR variants by Sanger sequencing. In addition, next generation sequencing (NGS) was used to characterize HBV‐DR variants from 66 participants with and 66 participants with no prior NUC exposure matched for HBV genotype and HBV DNA level. Half the participants were men, 75% Asian, 26% HBeAg positive. Primary HBV‐DR variants were detected by Sanger sequencing in 16 (1.2%) participants: 2/142 (1.4%) with and 14/1200 (1.2%) without prior NUC exposure; only 1 of these 16 had a secondary variant. In total, 23 (1.7%) participants had secondary variants, including 1 with prior NUC experience. In the subset of 132 participants, NGS detected HBV‐DR variants in a higher proportion of participants: primary variants in 18 (13.6%) (8 [12.1%] with, and 10 [15.2%] without prior NUC therapy) and secondary variants in 10 (7.6%) participants. Based on Sanger sequencing, prevalence of primary HBV‐DR variants is low (1.2%) among adults with CHB in US/Canada. The similar low prevalence of HBV‐DR variants in participants with and without NUC treatment suggests transmission of these variants is uncommon.
Pharmacokinetics of Eugenol in Japanese Flounder, Paralichthys olivaceus
Authors: Tago Akio , Yokoyama Saichiro , Ishikawa Manabu , Koshio Shunsuke 
Published: June 2017

AbstractEugenol, which has been used as an anesthetic for fish, was administered to Japanese flounder, Paralichthys olivaceus (127 ± 50.8 g), by bath treatment at concentrations of 0.025, 0.125, and 0.25 mL/L seawater for 10 min and intramuscular injection at 40 μL/fish to investigate the pharmacokinetic characteristics of eugenol in the plasma of Japanese flounder. In the bath treatment test, plasma eugenol concentration increased with increasing eugenol concentration up to 0.125 mL/L and reached steady state within 5 min. After a 10‐min bath treatment in 0.25 mL/L eugenol, plasma eugenol concentration was about 58.4 µg/mL. After transfer into running seawater, plasma eugenol concentration decreased biphasically with half‐lives of 0.0296 h (α‐phase) and 0.289 h (β‐phase). The AUC0000→0800 was about 16.5 µg h/mL. In administration by intramuscular injection, plasma eugenol concentration increased rapidly after administration and decreased biphasically with half‐lives of 0.0329 h (α‐phase) and 8.08 h (β‐phase). The AUC0000→0800 was about 52.5 µg h/mL. In both methods of administration, Japanese flounder with average weight of 127 g were effectively anesthetized when plasma eugenol concentrations were between 2.19 and 4.88 µg/mL.
Response of Pond‐raised Fingerling Hybrid Catfish, ♀ Ictalurus punctatus × ♂ Ictalurus furcatus, to Dietary Protein Concentrations and Sources
Authors: Li Menghe H. , Wise David J. , Mischke Charles C. , Kumar Ganesh , Lucas Penelope M. 
Published: June 2017

AbstractThis study examined four experimental diets with different protein concentrations and sources for pond‐raised fingerling hybrid catfish, ♀ Ictalurus punctatus × ♂ Ictalurus furcatus. A 35% protein diet with fishmeal was used as the control diet. Test diets were 32 and 28% all‐plant‐protein diets and a 28% protein diet with porcine meat, bone, and blood meal. Small fingerlings with a mean initial weight of 2.9 g/fish were stocked into 20 earthen ponds (0.04 ha) at a density of 172,970 fish/ha. They were fed once daily to apparent satiation for 107 d. No significant differences were observed for total diet fed, gross yield, final weight, survival, or condition factor among dietary treatments. However, fish fed the 28 and 32% all‐plant‐protein diets had a significantly higher feed conversion ratio than fish fed the 35% protein diet with fishmeal. There were no significant differences in chlorophyll a and nitrite concentrations in the pond water, but ponds receiving the 35% protein diet had significantly higher ammonia than those receiving 28% protein diets. Economic analysis suggested potential cost savings by using low‐protein and all‐plant‐protein diets for hybrid catfish fingerling production.
groEL is a suitable genetic marker for detecting Vibrio parahaemolyticus by loop-mediated isothermal amplification assay
Authors: Siddique M.P. , Jang W.J. , Lee J.M. , Ahn S.H. , Suraiya S. , Kim C.H. , Kong I.S. 
Published: June 2017

Abstract
A groEL gene-based loop-mediated isothermal amplification (LAMP) assay was developed to detect Vibrio parahaemolyticus in contaminated seafood and water. The assay was optimized and conducted at 63°C for 40 min using Bacillus stearothermophilus (Bst) DNA polymerase, large fragment. Amplification was analysed via multiple detection methods, including opacity, formation of white precipitate, DNA intercalating dyes (ethidium bromide and SYBR Green I), metal ion-binding indicator dye, calcein, and 2% agarose gel electrophoresis. A characteristic ladder-like band pattern on agarose gel and the desired colour changes when using different dyes were observed in positive cases, and these were species-specific for V. parahaemolyticus when compared with other closely related Vibrio spp. The limit of detection (LoD) of this assay was 100 fg per reaction, 100-fold higher than that for conventional polymerase chain reaction (PCR). When tested on artificially contaminated seafood and seawater, the LoDs of the LAMP assay were 120 and 150 fg per reaction respectively, and those of conventional PCR were 120 and 150 pg per reaction respectively. Based on our results, the groEL gene-based LAMP assay is rapid, specific, sensitive, and reliable for detecting V. parahaemolyticus, and it could be used in field diagnosis.

Significance and Impact of the Study
The loop-mediated isothermal amplification (LAMP) assay using groEL gene (an abundant, highly conserved gene and member of the groESL chaperone gene family) provided rapid, species-specific and highly sensitive method for detecting Vibrio parahaemolyticus, the leading causal agent of seafood-borne diseases worldwide. Moreover, groEL LAMP revealed high efficiency than conventional PCR assay for V. parahaemolyticus using template both from pure culture and artificially contaminated seafood and water, which indicated the applicability in the field and environmental screening purpose for the organism.
Accretionary lapilli from the Sudbury impact event
Authors: Huber Matthew S. , Koeberl Christian 
Published: June 2017

AbstractMeteorite impact‐generated accretionary lapilli are not well studied. The recently discovered distal ejecta from the 1850 Ma Sudbury impact event contain abundant accretionary lapilli generated during the impact and deposited at great distances from the crater. We petrographically and geochemically examined lapilli from five sites (McClure, Connors Creek, Hwy 588, Pine River, and Grand Trunk Pacific, approximately 480–750 km from the center of the Sudbury structure). The compositions of quartz, K‐feldspar, calcite, biotite, and chlorite minerals are similar to each other in all of the samples, although the relative proportions of the minerals vary from site to site. The lapilli occur in a matrix of coarse‐grained quartz, carbonate, and feldspar grains. Zonation within lapilli appears to be due to grain size distribution rather than compositional variation. The inner zones are coarser grained than outer zones. The relative abundances of calcite, phyllosilicates, and feldspars are similar in each zone within individual lapilli. A meteoritic component is indicated by up to 1.8 ppb Ir in one lapillus from the Pine River site, and Ni and Cr ratios are on a chondritic trend line for many of the lapilli. Mechanisms previously proposed for accretionary lapilli formation seem inadequate to explain deposition of distal accretionary lapilli resulting from impact events. A new mechanism for upper atmospheric accretion is proposed, whereby ash ejected from impact events concentrates at altitudes of neutral buoyancy, where it then accretes and is deposited later than ballistically emplaced particles. Likely, multiple processes are taking place in the chaotic postimpact environment.
Reconnaissance survey of the Duolun ring structure in Inner Mongolia: Not an impact structure
Authors: Xu Xiaoming , Kenkmann Thomas , Xiao Zhiyong , Sturm Sebastian , Metzger Nicolai , Yang Yu , Weimer Daniela , Krietsch Hannes , Zhu Meng‐Hua 
Published: June 2017

AbstractThe Duolun basin, which is located in Inner Mongolia, China, has been proposed to be an impact structure with an apparent rim diameter of about 70, or even 170 km. The designation as an impact structure was based on its nearly circular topography, consisting of an annular moat that surrounds an inner hummocky region, and the widespread occurrences of various igneous rocks, polymict breccias, and deformed crustal rocks. Critical shock metamorphic evidence is not available to support the impact hypothesis. We conducted two independent reconnaissance field surveys to this area and studied the lithology both within and outside of the ring structure. We collected samples from all lithologies that might contain evidence of shock metamorphism as suggested by their locations, especially those sharing similar appearances with impact breccias, suevites, impact melt rocks, and shatter cones. Field investigation, together with thin‐section examination, discovered that the suspected impact melt rocks are actually Early Cretaceous and Late Jurassic lava flows and pyroclastic deposits of rhyolitic to trachytic compositions, and the interpreted impact glass is typical volcanic glass. Petrographic analyses of all the samples reveal no indications for shock metamorphic overprint. All these lines of evidence suggest that the Duolun basin was not formed through impact cratering. The structural deformation and spatial distribution pattern of the igneous rocks suggest that the Duolun basin is most likely a Jurassic–Cretaceous complex rhyolite caldera system that has been partly filled with sediments forming an annular basin, followed by resurgent doming of the central area.
A new gomphodont cynodont (Traversodontidae) from the Middle–Late Triassic Dinodontosaurus Assemblage Zone of the Santa Maria Supersequence, Brazil
Authors: Melo Tomaz P. , Martinelli Agustín G. , Soares Marina B. 
Published: June 2017

AbstractThe tetrapod faunas from the terrestrial Middle–Late Triassic basins of Africa and South America are among the richest in the world, especially in non‐mammalian cynodonts. Despite the great abundance of cynodont specimens found in these basins, there are few known taxa that exhibit interbasinal distributions. Here we describe a new species of traversodontid cynodont of the genus Scalenodon from the Triassic Dinodontosaurus Assemblage Zone of the Santa Maria Supersequence, from the state of Rio Grande do Sul, Brazil. Scalenodon ribeiroae sp. nov. is based on a partial skull that possesses a combination of features not observed in any other South American traversodontid: ellipsoid upper postcanines with the transverse crest formed by three cusps, lacking a mesiobuccal accessory cusp, and with lingual cusp projected lingually creating a concave lingual surface on the upper postcanines; the paracanine fossa is positioned medially to the upper canine, and jugal lacks a suborbital process. A phylogenetic analysis places the new taxon in a basal position within the Family Traversodontidae, with the African Scalenodon angustifrons as sister‐taxon. The new specimen of Scalenodon represents the first record of this genus outside of the Manda Beds of Tanzania, and reinforces the biostratigraphical and biogeographical connection between Gondwanan Middle–Late Triassic tetrapod faunas. Although recent advances have been made, our current knowledge of these faunas is limited by the lack of absolute dates for most units and by uncertainties in the taxonomy and stratigraphical provenance of key fossils.
Pre‐emptive rituximab for Epstein–Barr virus reactivation after haplo‐hematopoietic stem cell transplantation
Authors: Kobayashi Shogo , Sano Hideki , Mochizuki Kazuhiro , Ohara Yoshihiro , Takahashi Nobuhisa , Ohto Hitoshi , Kikuta Atsushi 
Published: June 2017

AbstractBackgroundEpstein–Barr virus‐related post‐transplantation lymphoproliferative disease (EBV‐PTLD) is a serious complication in hematopoietic stem cell transplantation (HSCT) recipients.MethodsWe conducted a retrospective study to investigate the incidence and potential risk factors for EBV reactivation and to assess the efficacy of the management of EBV reactivation with pre‐emptive rituximab in children who had T‐cell‐replete haploidentical HSCT (TCR‐haplo‐SCT) with low‐dose anti‐thymocyte globulin (ATG). EBV‐DNA level in peripheral blood (PB) was measured when suspected EBV reactivation were observed. When the EBV‐DNA level in PB increased to >1,000 copies/106 peripheral blood mononuclear cells (PBMC), patients were pre‐emptively treated with rituximab (375 mg/m2/dose).ResultsA total of 19 (50%) of 38 patients received rituximab infusion at a median time of 56 days after HSCT (range, 17–270 days). The median viral load at initiation of therapy was 2,900 copies/106 PBMC (range, 1,000–650 000). Pre‐emptive therapy was started after a median of 2 days (range, 0–7 days). The median number of weekly treatment cycles was 2 (range, 1–3). None of the patients developed PTLD or other EBV‐associated diseases.ConclusionPre‐emptive rituximab therapy could be a useful strategy for EBV‐PTLD in TCR‐haplo‐SCT recipients with low‐dose ATG.
Morphological and chemical variation of Stemona tuberosa from southern China – Evidence for heterogeneity of this medicinal plant species
Authors: Chen G. , Brecker L. , Felsinger S. , Cai X.‐H. , Kongkiatpaiboon S. , Schinnerl J. 
Published: June 2017

Abstract

The occurrence of bioactive alkaloids and tocopherols was studied in 15 different provenances of Stemona tuberosa Lour. collected in southern China, to examine chemical variation of individuals that show notable differences in flower characteristics. Morphological variations stimulated examination of chemical characteristics of these individuals.

Methanolic root extracts of 15 individuals of S. tuberosa were comparatively assessed with HPLC‐UV‐DAD/ELSD. Five of seven compounds were co‐chromatographically identified. Two compounds were isolated and their structure elucidated using NMR and MS. Amounts of alkaloids and tocopherols were determined using HPLC‐UV‐DAD/ELSD with the external standard method.

Five alkaloids, tuberostemonine (1), tuberostemonine A (2), neotuberostemonine (3), tuberostemonine N (4), stemoninine (5) and two 3,4‐dehydrotocopherol derivatives were identified. Within S. tuberosa alkaloid accumulation tends either towards tuberostemonine (1) or stemoninine (5). All individuals show a notable co‐occurrence of compounds 1 or 5 and 3,4‐dehydro‐δ‐tocopherol (6). These results coincide with differences in flower morphology of S. tuberosa.

Stemona tuberosa, as defined in the Flora of China, shows a remarkable variation in flower morphology and additionally in the accumulation of alkaloids. The obtained data show the need for future species delimitation to either species or subspecies level.
Regional distribution and integrity of equine ovarian pre‐antral follicles
Authors: Gonzalez SM , da Silva CB , Lindquist AG , Bufalo I , Morotti F , Lisboa LA , Seneda M 
Published: June 2017

ContentsThe goal of this study was to determine the distribution of pre‐antral follicles in the ovarian parenchyma of mares. For Experiment 1, each ovary was cut longitudinally at the greater curvature, performing two hemiovaries. After that, six fragments from each hemiovary were obtained, resulting in 12 fragments, which were divided into the innermost region of the parenchyma, the middle region and the outermost region. All the three obtained sections were cut transversally to obtain two fragments from each one. For Experiment 2, each ovary also submitted to a longitudinal cut on the greater curvature, forming two hemiovaries. Each hemiovary was sectioned into four symmetrical fragments, resulting in eight fragments per ovary. The fragments were related as being near to or far from the ovulatory fossa. The fragments of both experiments were immediately fixed in Carnoy for 12 hr and kept in 70% ethanol for 24 hr. Follicles were classified according to the stages of development and for morphological integrity according to oocyte morphology and granulosa cells. After the histological assessment, a total of 1,130 follicles were visualized from Experiment 1, being 1,054 (93.3%) primordial follicles and 76 (4.7%) follicles in development. The innermost region had the highest percentage of pre‐antral follicles compared to the other regions (p < .05). The middle and outermost regions showed higher percentages of intact primordial and developing follicles than the innermost region (p < .05). Considering Experiment 2, 938 follicles were found, being 894 (95.3%) primordial and 44 (4.7%) follicles in development. The region near the ovulatory fossa presented higher (58.7%; 551 of 938) follicular concentration compared to the region far from the ovulatory fossa (41.3%; 387 of 938; p < .05). As a conclusion, distribution of pre‐antral follicles in the equine ovary has a specific pattern through the parenchyma. Also, the follicular integrity differed in the studied ovarian areas.
The development and integrity of equine pre‐antral follicles cultured in vitro with follicle‐stimulating hormone (FSH) supplementation
Authors: Max MC , Silva CB , González SM , Lindquist AG , Búfalo I , Gomes RG , Morotti F , Costa CB , Barreiros TRR , Lisboa LA , Seneda MM 
Published: June 2017

ContentsThis study investigated the effects of different concentrations of FSH (10, 50, 100 and 200 ng/ml) in supplemented MEM+ on the development of equine pre‐antral follicles that were cultured in vitro for 2 or 6 days. The ovaries (n = 5) from mares in seasonal anoestrus were collected from a local abattoir. Ten ovarian tissue fragments of approximately 3 × 3 × 1 mm were obtained from each animal. The fragments were cultured in situ for 2 days (D2) or 6 days (D6) in MEM+ or MEM+ supplemented with FSH at four different concentrations, establishing the following 11 groups: control (D0); MEM + (D2); MEM + (D6); MEM + 10 ng/ml of FSH (D2); MEM + 10 ng/ml of FSH (D6); MEM + 50 ng/ml of FSH (D2); MEM + 50 ng/ml of FSH (D6); MEM + 100 ng/ml of FSH (D2); MEM + 100 ng/ml of FSH (D6); MEM + 200 ng/ml of FSH (D2); and MEM + 200 ng/ml of FSH (D6). Follicles were observed in only 9.65% (388 of 4,018) of the histological sections. Of the 861 follicles evaluated, 488 were in the primordial stage, and 373 were in various developmental stages; 59.7% were morphologically normal. Regarding the integrity of the pre‐antral follicles, the groups with 100 ng/ml FSH of 2‐days culture as well as 50, 100 and 200 ng/ml FSH of 6‐days culture provided the best results. In conclusion, the in vitro culture of abattoir‐derived equine ovarian fragments presented better morphological integrity when supplemented with FSH for 6 days, in comparison with the MEM culture group. However, no clear effects were observed with FSH regarding the promotion of activation from a primordial to a developing follicle.
Effect of dietary vitamin E and selenium supplementation on semen quality in Cairn Terriers with normospermia
Authors: Kirchhoff KT , Failing K , Goericke‐Pesch S 
Published: June 2017

ContentsAmong others, selenium (Se) and vitamin E (VitE) have been provided to dogs to improve semen quality. However, scientific evidence documenting an effect in dogs is lacking. The aim of this study was to investigate the effect of supplementation of these antioxidants on various ejaculate parameters in a randomized, double‐blinded trial using Cairn Terrier males exhibiting normal seminal quality parameters. Three dogs each were fed a standardized diet and supplemented with 0.1 mg Se, 100 mg VitE or 0.1 mg Se + 100 mg VitE/dog for 3 months. Ejaculate analyses (volume, progressive motility, vitality, morphology, concentration) were performed before inclusion (D0) and after 1, 2 and 3 months (+1, +2, +3). At the same time, glutathione peroxidase (GSH‐PX) and VitE in seminal plasma (SP) and GSH‐PX in blood samples were determined. Vitamin E levels in SP were below the detection limit (1.0 mg/L) in all samples. GSH‐PX in blood (164.0–2794.4 IU/L) and SP (18.4–4326.0 IU/L) was highly variable. Supplementation only significantly affected the total percentage of sperm head abnormalities (p = .011). Time significantly affected the percentage of morphologically abnormal sperm (p = .025), sperm head abnormalities (p = .007), proximal droplets (p = .001) and GSH‐PX in SP (p = .015). Additionally, a significant interaction between time and group was identified for the percentage of membrane‐intact sperm (p = .048), head abnormalities (p = .018), acrosomal defects (p = .043) and proximal droplets (p = .002). Although some effects could be identified for selected parameters, we failed to identify a clear trend about how a 3 months VitE and/or Se supplementation affects semen parameters in normospermic Cairn Terriers.
The physical deterioration of dialysis patients—Ignored, ill‐reported, and ill‐treated
Authors: Bennett Paul N. , Capdarest‐Arest Nicole , Parker Kristen 
Published: June 2017

AbstractThe progressive physical deterioration of dialysis patients is apparent to all who are involved in their care. Exercise can help stem this decline, yet exercise uptake in chronic and end‐stage kidney disease is low. The involvement of exercise professionals has been shown to significantly increase patients’ physical function and improve their quality of life. However, exercise professionals are scarce in renal programs, far less than dietetic and social work services. A review of 10 years of renal exercise publications in the physical therapy and rehabilitation literature found that only 0.4% (7 out of a total of 1763) of all published articles were focused on people with kidney disease. This compared with stroke (44%, n=883), arthritis/bone (29%, n=458), cancer (9%, n=168), respiratory (8%, n=106), cardiac (5%, n=82), and diabetes (3%, n=45). These results reflect the low emphasis placed on renal rehabilitation by the physical therapy professions and the low renal content in physical therapy tertiary education programs. This is likely to have an impact on the level of involvement of physical therapists in renal programs leading to lower physical function and poorer quality of life for renal patients.