Miracle-dz/UniFAR-FTUs huggingface dataset:
Brain responds to another person's eye blinks in a natural setting—the more empathetic the viewer the stronger the responses

An observer's brain is known to respond to another person's small nonverbal signals, such as gaze shifts and eye blinks. Here we aimed to find out how an observer's brain reacts to a speaker's eye blinks in the presence of other audiovisual information. Magnetoencephalographic brain responses along with eye gaze were recorded from 13 adults who watched a video of a person telling a story. The video was presented first without sound (visual), then with sound (audiovisual), and finally the audio story was presented with a still‐frame picture on the screen (audio control). The viewers mainly gazed at the eye region of the speaker. Their saccades were suppressed at about 180 ms after the start of the speaker's blinks, a subsequent increase of saccade occurence to the base level, or higher, at around 340 ms. The suppression occurred in visual and audiovisual conditions but not during the control audio presentation. Prominent brain responses to blinks peaked in the viewer's occipital cortex at about 250 ms, with no differences in mean peak amplitudes or latencies between visual and audiovisual conditions. During the audiovisual, but not visual‐only, presentation, the responses were the stronger the more empathetic the subject was according to the Empathic Concern score of the Interpersonal Reactivity Index questionnaire (Spearman's rank correlation, 0.73). The other person's eye blinks, nonverbal signs that often go unnoticed, thus elicited clear brain responses even in the presence of attention‐attracting audiovisual information from the narrative, with stronger responses in people with higher empathy scores.
Brachial, radial, or femoral approach for elective Palmaz-Schatz stent implantation: a randomized comparison.

UNLABELLED From October 1994 to November 1995, 150 male eligible patients were randomly assigned to Palmaz-Schatz stent implantation through 6 French catheters using the femoral (puncture) (n = 56), radial (puncture) (n = 56), or brachial (cutdown) (n = 38) approach at 6 participating Belgian centers. Acenocoumarol was given for 1 month after stenting. END POINTS Primary-entry site complications (bleeding, haematoma, transfusion, occlusion, surgery) poststent implantation. Secondary-success rate, stent thrombosis, Q or non Q wave MI, repeat PTCA, CABG, CVA, haemorrage, death. There were no statistically significant differences between the three groups for base line and angiographic patient characteristics, procedural characteristics, in hospital outcome, average hospitalisation time after stenting, events during the month after stenting, or local complications at 1 month follow-up. The only statistically significant difference was the arterial time of the procedure: mean +/- SD (minutes) brachial 31.0 +/- 10.02 *P < 0.001, femoral 42.2 +/- 21.8, radial 55.8 +/- 31.3 **P < 0.0001 (*brachial vs. femoral, **brachial vs. radial). There was a clear trend toward more technical difficulties and more problems with the radial approach. In each group: vascular surgery at entry site: 0%, blood transfusion: 0%. In our study, local complications and length of hospital stay were similar with the three possible approaches, and brachial approach was associated with a shorter arterial time.
Assessment of Artificial Liver Support Technology

Despite more than 30 yr of research and development, an artificial liver has still not yet become clinical reality. Although previous attempts using a multiplicity of techniques including hemodialysis, hemoperfusion, plasma exchange, extracorporeal perfusion, and crosshemodialysis have shown minor improvement in patients with acute hepatic failure, limited clinical trials have failed to demonstrate any survival benefit. Encouraged by the progress on techniques that maintain long-term cultures of hepatocytes, more recent efforts have been directed at the use of hepatocytes as the basis of liver support. This review takes a critical look at past and present concepts in the development of artificial liver supports and both qualitatively and quantitatively evaluates the advantages and disadvantages of the available methodology.
Preparation and Characterization of a Multilayer Biomimetic Scaffold for Bone Tissue Engineering

In scaffold based bone tissue engineering, both the pore size and the mechanical properties of the scaffold are of great importance. However, an increase in pore size is generally accompanied by a decrease in mechanical properties. In order to achieve both suitable mechanical properties and porosity, a multilayer scaffold is designed to mimic the structure of cancellous bone and cortical bone. A porous nano-hydroxyapatite—chitosan composite scaffold with a multilayer structure is fabricated and encased in a smooth compact chitosan membrane layer to prevent fibrous tissue ingrowth. The exterior tube is shown to have a small pore size (15—40 μm in diameter) for the enhancement of mechanical properties, while the core of the multilayer scaffold has a large pore size (predominantly 70—150 μm in diameter) for nutrition supply and bone formation. Compared with the uniform porous scaffold, the multilayer scaffold with the same size shows an enhanced mechanical strength and larger pore size in the center. More cells are shown to grow into the center of the multilayer scaffold in vitro than into the uniform porous scaffold under the same seeding condition. Finally, the scaffolds are implanted into a rabbit fibula defect to evaluate the osteoconductivity of the scaffold and the efficacy of the scaffold as a barrier to fibrous tissue ingrowth. At 12 weeks post operation, affluent blood vessels and bone formation are found in the center of the scaffold and little fibrous tissue is noted in the defect site.
Forward locomotion of the nematode C. elegans is achieved through modulation of a single gait

The ability of an animal to locomote through its environment depends crucially on the interplay between its active endogenous control and the physics of its interactions with the environment. The nematode worm Caenorhabditis elegans serves as an ideal model system for studying the respective roles of neural control and biomechanics, as well as the interaction between them. With only 302 neurons in a hard‐wired neural circuit, the worm's apparent anatomical simplicity belies its behavioural complexity. Indeed, C. elegans exhibits a rich repertoire of complex behaviors, the majority of which are mediated by its adaptive undulatory locomotion. The conventional wisdom is that two kinematically distinct C. elegans locomotion behaviors—swimming in liquids and crawling on dense gel‐like media—correspond to distinct locomotory gaits. Here we analyze the worm's motion through a series of different media and reveal a smooth transition from swimming to crawling, marked by a linear relationship between key locomotion metrics. These results point to a single locomotory gait, governed by the same underlying control mechanism. We further show that environmental forces play only a small role in determining the shape of the worm, placing conditions on the minimal pattern of internal forces driving locomotion.
Epithelioid Sarcoma: Diagnostic Features and Genetics

Epithelioid sarcoma (ES) is a rare, aggressive soft-tissue neoplasm of uncertain differentiation, characterized by nodular aggregates of epithelioid cells, which are immunoreactive to cytokeratins (CKs) and epithelial membrane antigen, and often for CD34. It has a propensity for multifocal disease at presentation, local recurrence, and regional metastasis. These are aggressive neoplasms with particularly poor prognosis after regional or distant metastatic disease, for which surgical resection is still the mainstay of treatment, and options for patients with metastatic disease remain undefined. There are 2 distinct variants: classic ES, which typically presents as a subcutaneous or deep dermal mass in the distal extremities of young adults and comprises nodular distributions of relatively uniform epithelioid cells with central necrosis, and the proximal variant, which has a predilection for proximal limbs and limb girdles and the midline of the trunk, which is composed of sheets of larger, more atypical cells with variable rhabdoid morphology. Both classic and proximal-type ESs are associated with the loss of SMARCB1/INI1 protein expression, but appear otherwise molecularly relatively heterogeneous. We review classic and proximal-type ES, discussing morphology, immunohistochemical and genetic findings, the differential diagnosis, and the future potential for targeted therapies.
Emotion Socialization in the Context of Childhood Cancer: Perceptions of Parental Support Promotes Posttraumatic Growth

Objective Examined youth’s perceptions of parental reactions to youth’s cancer and non-cancer event-related distress and the link between perceptions of parental reactions and youth posttraumatic growth (PTG). Method Participants included 201 youth (8–21 years) with a history of cancer. Participants self-identified their most stressful life event, which were characterized as cancer or non-cancer related, and then completed measures in reference to this event assessing (1) their perceptions of parent reactions to event-related distress and (2) PTG. Results Youth who identified a cancer-related event perceived their parents as reacting with more support and reassurance/distraction than those who identified a non-cancer event. Perceptions of parental support, reassurance/distraction, and magnification of youth distress were associated with more PTG, with event type (cancer vs. non-cancer) indirectly predicting PTG through perceptions of parental support. Conclusion Youth perceive their parents as reacting differently to cancer versus non-cancer distress, which is in turn predictive of their perceptions of growth. Findings suggest that parental support and reassurance/distraction are possible mechanisms facilitating resilience and growth in children with cancer.
Early orthodontic treatment: a new index to assess the risk of malocclusion in primary dentition.

AIM A new index targeted on the risk of malocclusions in primary dentition, called Baby-ROMA (Risk Of Malocclusion Assessment) index, was set up to assess risks/benefits in early orthodontic therapies. The Baby-ROMA index was designed from the observation that some of the malocclusion signs, observed in primary dentition, can worsen with growth, others remain the same over time and others can even improve. Therefore it would be important to classify the malocclusions observed at an early stage on a risk- based scale. MATERIALS AND METHODS The reliability of the index was tested on 200 children, referred by their paediatricians to two different Orthodontic Departments, aged 4-6 years and in full primary dentition. The children were evaluated by two operators, both trained and calibrated on the use of the Baby-ROMA index. RESULTS The K test showed a high reproducibility of the index. It is shown that 50% of patients presented malocclusion and crossbite had the highest prevalence, followed by tooth decay and early loss of deciduous teeth and negative overjet. CONCLUSION The Baby-ROMA index was helpful to assess the severity of malocclusion and the timing for orthodontic treatment in very young patients (primary teeth).
Models for the Binary Complex of Bacteriophage T4 Gp59 Helicase Loading Protein

Background: Accessory proteins assist replicative helicases single-stranded binding protected DNA. Results: Small angle x-ray scattering molecular envelopes allows modeling of the gp59-gp32-DNA complex. Conclusion: The core and A-domains of gp32 protein interact with the C-terminal domain of gp59 protein near the identified binding site for gp41 helicase. Significance: Directional loading of replicative helicases requires structure-specific recognition of the DNA replication fork. Bacteriophage T4 gp59 helicase assembly protein (gp59) is required for loading of gp41 replicative helicase onto DNA protected by gp32 single-stranded DNA-binding protein. The gp59 protein recognizes branched DNA structures found at replication and recombination sites. Binding of gp32 protein (full-length and deletion constructs) to gp59 protein measured by isothermal titration calorimetry demonstrates that the gp32 protein C-terminal A-domain is essential for protein-protein interaction in the absence of DNA. Sedimentation velocity experiments with gp59 protein and gp32ΔB protein (an N-terminal B-domain deletion) show that these proteins are monomers but form a 1:1 complex with a dissociation constant comparable with that determined by isothermal titration calorimetry. Small angle x-ray scattering (SAXS) studies indicate that the gp59 protein is a prolate monomer, consistent with the crystal structure and hydrodynamic properties determined from sedimentation velocity experiments. SAXS experiments also demonstrate that gp32ΔB protein is a prolate monomer with an elongated A-domain protruding from the core. Fitting structures of gp59 protein and the gp32 core into the SAXS-derived molecular envelope supports a model for the gp59 protein-gp32ΔB protein complex. Our earlier work demonstrated that gp59 protein attracts full-length gp32 protein to pseudo-Y junctions. A model of the gp59 protein-DNA complex, modified to accommodate new SAXS data for the binary complex together with mutational analysis of gp59 protein, is presented in the accompanying article (Dolezal, D., Jones, C. E., Lai, X., Brister, J. R., Mueser, T. C., Nossal, N. G., and Hinton, D. M. (2012) J. Biol. Chem. 287, 18596–18607).
Comparison of gamma glutamyltransferase in normal and in type 2 diabetics.

OBJECTIVE Comparison of gamma glutamyltransferase in normal and type 2 diabetics. METHODS In a cross-sectional study, 100 apparently normal healthy subjects and, 47 type 2 diabetic subjects were selected from either sex with ages between 18-65 years. Subjects were measured for waist/hip ratio, BMI and serum levels of ALT, AST, Alk phosphatase and glutamyl transferase (GGT). The study excluded by screening for AntiHCV, HBsAg and patients with aspartate amino transferase (SGOT), alanine amino transferase (SGPT), GGT levels more than three times the normal and subject with a total leukocyte count more than 10,000/microl. RESULTS The levels of GGT levels were found to be most significant among all the liver enzymes (P = 0.001). The levels of GGT compared with type 2 diabetics was found to be significantly increased when compared with BMI, waist/circumference, cholesterol, triglycerides (TG), high density lipoprotein (HDL), low density lipoprotein (LDL), fasting blood sugar level and blood pressure (P = 0.001). The pearson regression analysis showed a positive relation with systolic, diastolic blood pressure and fasting blood sugar. CONCLUSION These results indicate that levels of GGT were raised with increased waist girth, BMI, blood pressure TG and low HDL, all of these are the features of metabolic syndrome according to ATP III criteria. Hence, serum GGT may be an important investigation for diabetes and metabolic syndrome.
BMP12 and BMP13 gene transfer induce ligamentogenic differentiation in mesenchymal progenitor and anterior cruciate ligament cells.

BACKGROUND AIMS To date there are only very few data available on the ligamentogenic differentiation capacity of mesenchymal stromal/progenitor cells (MSC) and anterior cruciate ligament (ACL) fibroblasts. METHODS We describe the in vitro potential of MSC and ACL cells to undergo ligamentogenic differentiation upon transduction with adenoviral vectors encoding the human cDNA for bone morphogenetic protein (BMP) 12 and BMP13, also known as growth and differentiation factors (GDF) 6 and 7, respectively. RESULTS Transgene expression for at least 14 days was confirmed by Western blot analyzes. After 21 days of cell culture within collagen type I hydrogels, histochemical (hematoxylin/eosin (H&E), Azan and van Gieson), immunohistochemical and polymerase chain reaction (PCR) analyzes of the genetically modified constructs of both cell types revealed elongated, viable fibroblast-like cells embedded in a ligament-like matrix rich in collagens, vimentin, fibronectin, decorin, elastin, scleraxis, tenascin, and tenomodulin. CONCLUSIONS It appears that both MSC and ACL fibroblasts are capable of ligamentogenic differentiation with these factors. This information may aid in the development of biologic approaches to repair and restore ACL after injury.
'Weekend on the town': discrete sessions of drug use for a sample of young psychostimulant users.

INTRODUCTION AND AIMS Few epidemiological studies have examined the behaviours and experiences of young adults during discrete drug-use events. This study was designed to capture a rich, detailed description of discrete occasions or 'sessions' of psychostimulant use. DESIGN AND METHODS Participants were 220 young psychostimulant users living in Melbourne, Australia, recruited through targeted advertising in entertainment street press, on websites, at events/dance parties and through peer referral between September 2007 and March 2008. The research identified the timing, sequence, frequencies, quantities and modes of alcohol and other drug administration during the participants' most recent session of psychostimulant use and explored the contexts and settings in which drug use took place. RESULTS Participants were well-educated young people who used a variety of different drugs. Their most recent session of psychostimulant use was reported as highly enjoyable and typical of their other sessions of psychostimulant use. The session lasted a median of 20 h, and in most cases, simultaneous drug use was the norm, and large quantities of alcohol, psychostimulants and other drugs were consumed. Acquisition of illicit drugs commonly occurred through social networks during the course of the session and significant sums of money were reportedly spent. DISCUSSION AND CONCLUSIONS Findings point to a range of priorities for future research and public health interventions aimed at young psychostimulant users, focused primarily on reducing the prevalence and consequences of simultaneous and heavy/binge drug use.
Fear of dental pain in Italian children: child personality traits and parental dental fear.

OBJECTIVES Dental anxiety could impede dental treatment in children. Evidence shows that parents' fear of dentists contributes to children's anxiety towards dentists. The aim of the present study was to determine whether and to what extent: a) parents' anxiety and depression personality traits, b) parent's dental fear, and c) child personality traits can predict children's dental anxiety in an Italian population. METHODS One hundred and four children (5-14 years old) and one of their parents participated in the study. Well-known and validated questionnaires were administered to children (MCDASf, CFSS-DS, TAD) and parents (FDPQ, STAI Y1, Y2, and BDI-II). RESULT Dental anxiety is significantly associated with the anxiety personality trait and depression of the child and with parental fear of dental pain. A hierarchical regression analysis showed that, regardless of age and gender, the best predictor of child dental anxiety is parent's fear of dental pain, rather than relatively stable temperaments of the child. CONCLUSIONS In line with the literature concerning adults, these findings highlight the children dental anxiety as a complex phenomena consisting of different components, including the child's personality traits (anxiety trait and depression) and parents' dental fear. Clinical implications of this evidence are discussed.
Determinants of the White‐Coat Effect in Normotensives and Never‐Treated Mild Hypertensives

The prognostic significance of the white‐coat effect (WCE) is unclear. Knowledge of the predictors of the WCE may help illuminate the clinical significance of this phenomenon. The purpose of this study was to (i) compare characteristics of subjects demonstrating a WCE, those not demonstrating a WCE, and those demonstrating a reverse WCE and (ii) determine clinical features that may influence the size of the WCE. Forty‐one subjects with normotension or mild hypertension who had never been treated with antihypertensive medications were recruited for the study. All subjects underwent a battery of anthropometrical measurements and clinic blood pressure (BP) measurements. To calculate arterial compliance, impedance cardiography was used to measure resting stroke volume in each subject. All subjects performed a laboratory mental stress protocol to determine the size of the BP reactivity. Ambulatory blood pressure (ABP) profiles were studied in each subject with the use of an oscillometric ABP recorder. White‐coat effect was determined by subtracting the awake period of the ambulatory systolic blood pressure (SBP) from the clinical SBP. Subjects were grouped according to the size of their WCE. Those who showed a WCE of 5 mmHg and above were assigned to the WCE group; those who showed a WCE of between −5 and 5 mmHg were assigned to the no white coat effect (NWCE) group; those who exhibited a WCE of −5 mmHg and lower were assigned to the reverse white‐coat effect (RWCE) group. Subjects with a positive WCE had significantly higher body mass index (BMI) than those without a WCE and those with a RWCE. The WCE group had significantly higher clinic SBP and heart rate (HR) than the RWCE group. Arterial compliance was significantly lower in the WCE group as compared to the NWCE group and the RWCE group. The three groups had comparable ABP profiles. In terms of BP variability, the increase in SBP in response to mental stress did not differ among the three study groups nor did the 24‐hour and awake BP variability. For the sample as a whole, clinic HR and clinic‐ambulatory SBP difference were higher and arterial compliance were lower in women than in men. Furthermore, clinic SBP significantly correlated with the systolic WCE (r = 0.40, P = 0.009). When men and women were analyzed separately, the correlation between clinic SBP and the systolic WCE was significant in women (r = 0.63, P = 0.001) but not in men (P = 0.95). Multiple linear regression showed that sex (P = 0.013) and clinical SBP (P = 0.003) were the only two variables that significantly influenced the systolic WCE. These two variables together accounted for 29% of the variation in the systolic WCE. In conclusion sex and clinic BP are two major determinants of the WCE. The results of this study indicate that WCE is not related to higher stress reactivity or higher BP variability.
Gingipains of Porphyromonas gingivalis Modulate Leukocyte Adhesion Molecule Expression Induced in Human Endothelial Cells by Ligation of CD99

ABSTRACT Porphyromonas gingivalis has been implicated as a key etiologic agent in the pathogenesis of destructive chronic periodontitis. Among virulence factors of this organism are cysteine proteinases, or gingipains, that have the capacity to modulate host inflammatory defenses. Intercellular adhesion molecule expression by vascular endothelium represents a crucial process for leukocyte transendothelial migration into inflamed tissue. Ligation of CD99 on endothelial cells was shown to induce expression of endothelial leukocyte adhesion molecule 1, vascular cell adhesion molecule 1, intercellular adhesion molecule 1, and major histocompatibility complex class II molecules and to increase adhesion of leukocytes. CD99 ligation was also found to induce nuclear translocation of NF-κB. These results indicate that endothelial cell activation by CD99 ligation may lead to the up-regulation of adhesion molecule expression via NF-κB activation. However, pretreatment of endothelial cells with gingipains caused a dose-dependent reduction of adhesion molecule expression and leukocyte adhesion induced by ligation of CD99 on endothelial cells. The data provide evidence that the gingipains can reduce the functional expression of CD99 on endothelial cells, leading indirectly to the disruption of adhesion molecule expression and of leukocyte recruitment to inflammatory foci.