Miracle-dz/UniFAR-FTUs huggingface dataset:
Can words heal? Using affect labeling to reduce the effects of unpleasant cues on symptom reporting

Processing unpleasant affective cues induces elevated momentary symptom reports, especially in persons with high levels of symptom reporting in daily life. The present study aimed to examine whether applying an emotion regulation strategy, i.e. affect labeling, can inhibit these emotion influences on symptom reporting. Student participants (N = 61) with varying levels of habitual symptom reporting completed six picture viewing trials of homogeneous valence (three pleasant, three unpleasant) under three conditions: merely viewing, emotional labeling, or content (non-emotional) labeling. Affect ratings and symptom reports were collected after each trial. Participants completed a motor inhibition task and self-control questionnaires as indices of their inhibitory capacities. Heart rate variability was also measured. Labeling, either emotional or non-emotional, significantly reduced experienced affect, as well as the elevated symptoms reports observed after unpleasant picture viewing. These labeling effects became more pronounced with increasing levels of habitual symptom reporting, suggesting a moderating role of the latter variable, but did not correlate with any index of general inhibitory capacity. Our findings suggest that using an emotion regulation strategy, such as labeling emotional stimuli, can reverse the effects of unpleasant stimuli on symptom reporting and that such strategies can be especially beneficial for individuals suffering from medically unexplained physical symptoms.
Tissue-Specific Transcript Profiling for ABC Transporters in the Sequestering Larvae of the Phytophagous Leaf Beetle Chrysomela populi

Background Insects evolved ingenious adaptations to use extraordinary food sources. Particularly, the diet of herbivores enriched with noxious plant secondary metabolites requires detoxification mechanisms. Sequestration, which involves the uptake, transfer, and concentration of occasionally modified phytochemicals into specialized tissues or hemolymph, is one of the most successful detoxification strategies found in most insect orders. Due to the ability of ATP-binding cassette (ABC) carriers to transport a wide range of molecules including phytochemicals and xenobiotics, it is highly likely that they play a role in this sequestration process. To shed light on the role of ABC proteins in sequestration, we describe an inventory of putative ABC transporters in various tissues in the sequestering juvenile poplar leaf beetle, Chrysomela populi. Results In the transcriptome of C. populi, we predicted 65 ABC transporters. To link the proteins with a possible function, we performed comparative phylogenetic analyses with ABC transporters of other insects and of humans. While tissue-specific profiling of each ABC transporter subfamily suggests that ABCB, C and G influence the plant metabolite absorption in the gut, ABCC with 14 members is the preferred subfamily responsible for the excretion of these metabolites via Malpighian tubules. Moreover, salicin, which is sequestered from poplar plants, is translocated into the defensive glands for further deterrent production. In these glands and among all identified ABC transporters, an exceptionally high transcript level was observed only for Cpabc35 (Cpmrp). RNAi revealed the deficiency of other ABC pumps to compensate the function of CpABC35, demonstrating its key role during sequestration. Conclusion We provide the first comprehensive phylogenetic study of the ABC family in a phytophagous beetle species. RNA-seq data from different larval tissues propose the importance of ABC pumps to achieve a homeostasis of plant-derived compounds and offer a basis for future analyses of their physiological function in sequestration processes.
Changes in the gene expression profile of A375 human melanoma cells induced by overexpression of multifunctional pigment epithelium-derived factor

Pigment epithelium-derived factor (PEDF) is a broad-spectrum angiogenesis inhibitor that displays potent antimetastatic activity in multiple tumor types. We have previously shown that PEDF prevents primary tumor growth and metastatic spread of human melanoma in mouse experimental models. Consistent with these observations, PEDF expression is lost at the late stages of melanoma progression, allowing melanoma cells to become angiogenic, migratory, and invasive. PEDF's ability to modify the interplay between the host and tumor tissues strongly supports its use as a therapeutic agent for the treatment of metastatic melanoma. However, transition to the clinic requires a more detailed knowledge of the molecular mechanisms underpinning PEDF's activity. In this study, we describe changes in the gene expression profile of A375 human melanoma cells induced by PEDF overexpression. PEDF modulated diverse categories of genes known to be involved in angiogenesis and migration. It downregulated cytokines such as interleukin-8 and extracellular matrix proteins such as collagen IV, while it upregulated fibronectin. Multiple transcripts previously described as contributing to the acquisition of malignant phenotype by melanoma were also diminished by PEDF overexpression, among which we validated galectin 3 and jagged 1. In addition, PEDF downregulated S100&bgr; and melanoma inhibitory activity, which are widely used in the pathological diagnosis of melanoma. Interestingly, PEDF increased the expression of melanophilin and decreased rab27A, which are relevant targets for melanosome transport; suggesting that PEDF could directly impinge on melanocytic lineage-specific processes. Our study identifies new molecular targets and signaling pathways that may potentially contribute to determine PEDF's ability to restrict the aggressiveness of A375 human melanoma cells.
Indexicality in the Construction of the Expert-Novice Relationship in Pair Work.

A study investigated the dynamics of second language classroom dyadic interactions in which one participant assumes the expert role and one the novice role. The study was conducted in a university-level Japanese language class, in which pairs were videotaped doing role play; analysis focused on one particular pair playing the roles of a teacher and a student. Activities and language indexing levels of expertise were examined, and fact)rs relating to the social, institutional, or historical setting that t.culd impact the constitution of participants as expert or novice were also explored. Results of the analysis, with excerpts from their transcribed interaction, are discussed here. It is concluded that while a particular form in a particular context may be seen as indexing an expert or novice role, examination of multi-turn interaction reveals that the constitution of expert-novice in learner-learner interaction may be mutually constituted, or negotiated, by the learners. Through this negotiation of intersubjectivity, both learners have the opportunity to use the target language for a genuine purpose, learning how to link language, context, and task in conversation with another who may have a different situation definition and different goals for the interaction. (Contains 29 references.) (MSE) **********************************************************************y Reproductions supplied by EDRS are the best that can be made from the original document. ***********************************************************************
Subregional, Dendritic Compartment, and Spine Subtype Specificity in Cocaine Regulation of Dendritic Spines in the Nucleus Accumbens

Numerous studies have found that chronic cocaine increases dendritic spine density of medium spiny neurons in the nucleus accumbens (NAc). Here, we used single-cell microinjections and advanced 3D imaging and analysis techniques to extend these findings in several important ways: by assessing cocaine regulation of dendritic spines in the core versus shell subregions of NAc in the mouse, over a broad time course (4 h, 24 h, or 28 d) of withdrawal from chronic cocaine, and with a particular focus on proximal versus distal dendrites. Our data demonstrate subregion-specific, and in some cases opposite, regulation of spines by cocaine on proximal but not distal dendrites. Notably, all observed density changes were attributable to selective regulation of thin spines. At 4 h after injection, the proximal spine density is unchanged in the core but significantly increased in the shell. At 24 h, the density of proximal dendritic spines is reduced in the core but increased in the shell. Such downregulation of thin spines in the core persists through 28 d of withdrawal, whereas the spine density in the shell returns to baseline levels. Consistent with previous results, dendritic tips exhibited upregulation of dendritic spines after 24 h of withdrawal, an effect localized to the shell. The divergence in regulation of proximal spine density in NAc core versus shell by cocaine correlates with recently reported electrophysiological data from a similar drug administration regimen and might represent a key mediator of changes in the reward circuit that drive aspects of addiction.
Comparative evaluation of ropivacaine versus dexmedetomidine and ropivacaine in epidural anesthesia in lower limb orthopedic surgeries

Background: Various adjuvant are being used with local anesthetics for prolongation of intra operative and postoperative analgesia in epidural block for lower limb surgeries. Dexmedetomidine, the highly selective α2 adrenergic agonist is a new neuroaxial adjuvant gaining popularity. The aim of the present study was to compare the hemodynamic, sedative and analgesia potentiating effects of epidurally administered dexmedetomidine when combined with ropivacaine. Materials and Methods: The study was conducted in prospective, randomized double-blind manner in which 100 patients of American Society of Anesthesiologist Grade I and II in the age group of 20-65 years of either sex under going lower limb surgeries were included after taking informed consent. The patients were randomly allocated into two groups of 50 each. Epidural anesthesia was given with 150 mg of 0.75% ropivacaine in Group A (n = 50) and 150 mg of 0.75% ropivacaine with dexmedetomidine (1 μg/kg) in Group B (n = 50). Two groups were compared with respect to hemodynamic changes, block characteristics which included time to onset of analgesia at T10, maximum sensory analgesic level, time to maximum sensory and motor block, time to regression at S1 dermatome and time to the first dose of rescue analgesia for 24 h. At the end of study, data was compiled and analyzed statistically using Chi-square test, Fisher's exact test and Student t-test. P < 0.05 was considered to be significant and P < 0.001 as highly significant. Results: Significant difference was observed in relation to the duration of sensory block (375.20 ± 15.97 min in Group A and 535.18 ± 19.85 min in Group B [P - 0.000]), duration of motor block (259.80 ± 15.48 min in Group A and 385.92 ± 17.71 min in Group B [P - 0.000]), duration of post-operative analgesia (312.64 ± 16.21 min in Group A and 496.56 ± 16.08 min in Group B [P < 0.001]) and consequently low doses of rescue analgesia in Group B (1.44 ± 0.501) as compared to Group A (2.56 ± 0.67). Sedation score was significantly more in Group B in the post-operative period. Conclusion: Epidural Dexmedetomidine as an adjuvant to Ropivacaine is associated with prolonged sensory and motor block, hemodynamic stability, prolonged postoperative analgesia and reduced demand for rescue analgesics when compared to plain Ropivacaine.
Noisy-OR Models with Latent Confounding

Given a set of experiments in which varying subsets of observed variables are subject to intervention, we consider the problem of identifiability of causal models exhibiting latent confounding. While identifiability is trivial when each experiment intervenes on a large number of variables, the situation is more complicated when only one or a few variables are subject to intervention per experiment. For linear causal models with latent variables Hyttinen et al. (2010) gave precise conditions for when such data are sufficient to identify the full model. While their result cannot be extended to discrete-valued variables with arbitrary cause-effect relationships, we show that a similar result can be obtained for the class of causal models whose conditional probability distributions are restricted to a `noisy-OR' parameterization. We further show that identification is preserved under an extension of the model that allows for negative influences, and present learning algorithms that we test for accuracy, scalability and robustness.
Acyl-CoA oxidase is imported as a heteropentameric, cofactor-containing complex into peroxisomes of Yarrowia lipolytica

Five isoforms of acyl-CoA oxidase (Aox), designated Aox1p to Aox5p, constitute a 443-kD heteropentameric complex containing one polypeptide chain of each isoform within the peroxisomal matrix of the yeast Yarrowia lipolytica. Assembly of the Aox complex occurs in the cytosol and precedes its import into peroxisomes. Peroxisomal targeting of the Aox complex is abolished in a mutant lacking the peroxin Pex5p, a component of the matrix protein targeting machinery. Import of the Aox complex into peroxisomes does not involve the cytosolic chaperone Pex20p, which mediates the oligomerization and import of peroxisomal thiolase. Aox2p and Aox3p play a pivotal role in the formation of the Aox complex in the cytosol and can substitute for one another in promoting assembly of the complex. In vitro, these subunits retard disassembly of the Aox complex and increase the efficiency of its reassembly. Neither Aox2p nor Aox3p is required for acquisition of the cofactor FAD by other components of the complex. We provide evidence that the Aox2p- and Aox3p-assisted assembly of the Aox complex in the cytosol is mandatory for its import into peroxisomes and that no component of the complex can penetrate the peroxisomal matrix as a monomer.
Sensitivity of AGCM simulations to modifications in the ozone distribution and refinements in selected physical parameterizations

The sensitivity of the stratospheric circulation simulated by an atmospheric general circulation model (UCLA AGCM) to modifications in the parameterization of several key physical processes is investigated. The focus is on the northern hemisphere winter circulation simulated by the troposphere-stratosphere version of the model. The parameterization of ozone mixing ratio is first investigated by comparing multi-year simulations with distributions of ozone mixing ratio that are either prescribed according to an observed climatology, or predicted using a scheme with a simple photochemistry formulation. The prescribed ozone mixing ratios produce a considerably more realistic circulation, although the results are degraded in some regions of the stratosphere. This leads to a closer look into the radiation parameterization. Several simulations for the northern winter season are performed with adjustments to obtain more realistic radiative cooling rates mainly in the upper stratosphere. It is found that the simulation of the stratospheric polar night jet is very sensitive to these adjustments. Additional experiments performed by adding Rayleigh friction and Newtonian cooling reveal a similar sensitivity. The results of these experiments emphasize a need for caution when ad-hoc adjustments are applied in the model. They also confirm that the performance of an AGCM in the stratosphere can depend on several different model aspects, and that this dependence is not always straightforward. In addition, the authors argue that their results support the notion that parameterizations of orographic gravity wave drag that neglect or underestimate the drag in the troposphere may overestimate the drag in the stratosphere.
Phlebotomine Sand Fly Composition (Diptera: Psychodidae) and Putative Vectors of American Cutaneous Leishmaniasis in Porto Velho Municipality, Western Amazon, Brazil

Abstract This study evaluated the species composition of sand flies and identified potential vectors of Leishmania Ross species in rural areas of Porto Velho, Rondônia State, Brazil. American cutaneous leishmaniasis (ACL) is one of the gravest threats to public health in this state. Sand flies were collected over the course of 2014 and 2015 using HP light traps. Polymerase chain reaction was performed by targeting the Leishmania mkDNA region. In total, 2,344 sand flies were collected, from which 45 species, nine subgenera, and five species group were identified. The most abundant species were Lutzomyia antunesi (Coutinho) (n = 597, 25.47%), Lutzomyia ubiquitalis (Mangabeira) (n = 496, 21.16%), and Lutzomyia octavioi (Vargas) (n = 199, 8.49%). The greatest diversity occurred in the forest environment where the most abundant species were L. antunesi (n = 588, 25.07%), L. ubiquitalis (n = 493, 21.02%), L. octavioi (n = 199, 8.49%), and Lutzomyia flaviscutellata (Mangabeira) (n = 132, 5.63%). Two pools of L. ubiquitalis were positive for Leishmania DNA, which suggests that L. ubiquitalis is a putative vector of leishmaniasis in the municipality of Porto Velho.
Fiber and Prebiotics: Mechanisms and Health Benefits

The health benefits of dietary fiber have long been appreciated. Higher intakes of dietary fiber are linked to less cardiovascular disease and fiber plays a role in gut health, with many effective laxatives actually isolated fiber sources. Higher intakes of fiber are linked to lower body weights. Only polysaccharides were included in dietary fiber originally, but more recent definitions have included oligosaccharides as dietary fiber, not based on their chemical measurement as dietary fiber by the accepted total dietary fiber (TDF) method, but on their physiological effects. Inulin, fructo-oligosaccharides, and other oligosaccharides are included as fiber in food labels in the US. Additionally, oligosaccharides are the best known “prebiotics”, “a selectively fermented ingredient that allows specific changes, both in the composition and/or activity in the gastrointestinal microflora that confers benefits upon host well-bring and health. ” To date, all known and suspected prebiotics are carbohydrate compounds, primarily oligosaccharides, known to resist digestion in the human small intestine and reach the colon where they are fermented by the gut microflora. Studies have provided evidence that inulin and oligofructose (OF), lactulose, and resistant starch (RS) meet all aspects of the definition, including the stimulation of Bifidobacterium, a beneficial bacterial genus. Other isolated carbohydrates and carbohydrate-containing foods, including galactooligosaccharides (GOS), transgalactooligosaccharides (TOS), polydextrose, wheat dextrin, acacia gum, psyllium, banana, whole grain wheat, and whole grain corn also have prebiotic effects.
Quality of life in overweight (obese) and normal-weight women with polycystic ovary syndrome

Objective Polycystic ovary syndrome (PCOS) is characterized by phenotypic heterogeneity and has a wide variety of consequences. Approximately half of women with PCOS are overweight or obese, and their obesity may be a contributing factor to PCOS pathogenesis through different mechanisms. The aim of this study was to evaluate if PCOS alone affects the patients’ quality of life and to what extent obesity contributes to worsen this disease. Design To evaluate the impact of PCOS on health-related quality-of-life (HRQoL), 100 Mediterranean women with PCOS (group A), 50 with a body mass index (BMI) >25 kg/m2 (group A1) and 50 with BMI <25 kg/m2 (group A2), were recruited. They were evaluated with a specific combination of standardized psychometric questionnaires: the Symptom Checklist-90 Revised, the 36-Item Short-Form Health Survey, and the Polycystic Ovary Syndrome Questionnaire. The patients were compared with a normal-weight healthy control group of 40 subjects (group B). Another control group of 40 obese healthy women (group C) was used to make a comparison with PCOS obese patients (A1). Results Our results showed a considerable worsening of HRQoL in PCOS patients (A) compared with controls (B). In addition, patients with PCOS and BMI >25 (A1) showed a significant and more marked reduction in scores, suggesting a lower quality of life, compared with controls (B) and with normal-weight PCOS patients (A2). Conclusion PCOS is a complex disease that alone determines a deterioration of HRQoL. The innovative use of these psychometric questionnaires in this study, in particular the PCOS questionnaire, has highlighted that obesity has a negative effect on HRQoL. It follows that a weight decrease is associated to phenotypic spectrum improvement and relative decrement in psychological distress.
Altruism, Anticipation, and Gender

Existing studies connect overall wellbeing with both payoffs and related anticipation, but it is not explored whether altruistic behavior as well as anticipation about the same may differ across gender and across income levels. We study altruistic behavior and the corresponding anticipation under a pure income effect with a focus on gender. In a dictator game we vary the common show-up fee of both the dictator and the recipient in each of the between-subject treatments, keep the amount to be shared the same, and incentivize recipients to anticipate the amount given. Overall, female dictators give more than their male counterparts but this is driven specifically by high show-up fees. Male recipients, on average and across all show-up fees, anticipate more than the amount female recipients anticipate. They also anticipate higher amounts than what males give as dictators; females do not show such significant pattern. The results reiterate context-driven behavior and lower payoff anticipation in females, and overconfidence in males.
Genotyping of Present-Day and Historical Geobacillus Species Isolates from Milk Powders by High-Resolution Melt Analysis of Multiple Variable-Number Tandem-Repeat Loci

ABSTRACT Spores of thermophilic Geobacillus species are a common contaminant of milk powder worldwide due to their ability to form biofilms within processing plants. Genotyping methods can provide information regarding the source and monitoring of contamination. A new genotyping method was developed based on multilocus variable-number tandem-repeat (VNTR) analysis (MLVA) in conjunction with high-resolution melt analysis (MLV-HRMA) and compared to the currently used method, randomized amplified polymorphic DNA PCR (RAPD-PCR). Four VNTR loci were identified and used to genotype 46 Geobacillus isolates obtained from retailed powder and samples from 2 different milk powder processing plants. These 46 isolates were differentiated into 16 different groups using MLV-HRMA (D = 0.89). In contrast, only 13 RAPD-PCR genotypes were identified among the 46 isolates (D = 0.79). This new method was then used to analyze 35 isolates obtained from powders with high spore counts (>104 spores ï¿½ g−1) from a single processing plant together with 27 historical isolates obtained from powder samples processed in the same region of Australia 17 years ago. Results showed that three genotypes can coexist in a single processing run, while the same genotypes observed 17 years ago are present today. While certain genotypes could be responsible for powders with high spore counts, there was no correlation to specific genotypes being present in powder plants and retailed samples. In conclusion, the MLV-HRMA method is useful for genotyping Geobacillus spp. to provide insight into the prevalence and persistence of certain genotypes within milk powder processing plants.