Miracle-dz/UniFAR-FTUs huggingface dataset:
In vitro effects of arylimidamides against Besnoitia besnoiti infection in Vero cells

SUMMARY The in vitro effects of 4 arylimidamides (DB811, DB786, DB750 and DB766) against the proliferative tachyzoite stage of the apicomplexan parasite Besnoitia besnoiti were investigated. These four compounds had been shown earlier to exhibit in vitro activities in the nanomolar range against the related apicomplexans Neospora caninum and Toxoplasma gondii. Real-time-PCR was used to assess B. besnoiti intracellular proliferation in vitro. Preliminary assessment by light microscopy identified DB811 and DB750 as the most promising compounds, while DB786 and DB766 were much less effective. Three-day-growth assays and quantitative real-time PCR was used for IC50 determination of DB811 (0·079 μM) and DB750 (0·56 μM). Complete growth inhibition was observed at 1·6 μM for DB 811 and 1·7 μM for DB750. However, when infected cultures were treated for 14 days, proliferation of parasites occurred again in cultures treated with DB750 from day 4 onwards, while the proliferation of DB811-treated tachyzoites remained inhibited. Electron microscopy of B. besnoiti-infected fibroblast cultures fixed and processed at different time-points following the initiation of drug treatments revealed that DB811 exerted a much higher degree of ultrastructural alterations compared to DB750. These results show that arylimidamides such as DB811 could potentially become an important addition to the anti-parasitic arsenal for food animal production, especially in cattle.
Postprandial peristalsis in the human duodenum

MMC‐related retroperistalsis is a cyclical phenomenon in the duodenum linked to phase III. The aim of this study was to elucidate the direction of propagation of juxtapyloric duodenal pressure waves in the postprandial state in healthy humans and to compare with the contractions in the interdigestive phase II. Antroduodenal manometry was performed in 11 healthy subjects. Individual pressure waves propagating along a 6‐cm duodenal segment were analysed with respect to the proportions of antegrade and retrograde propagation in the four duodenal subsegments (D1–D2) to (D4–D5), each subsegment being 15 mm. A test meal was given 30 min after a phase III had passed and motility recording continued for 60 min after the meal. During both the first and the second 30‐min period of postprandial recording the proportion of retrograde pressure waves was larger just distal to the pylorus, (D1–D2), 40% (23–68) and 50% (23–68), respectively, compared to the distal part, (D4–D5), of the duodenal segment, 29% (12–30) and 10%(10–24), respectively (P < 0.05 and 0.01). In contrast, during late phase II of the interdigestive state antegrade pressure waves predominated in all four duodenal subsegments. We conclude that in the postprandial state a high proportion of the duodenal pressure waves (40–50%) is retrograde in the immediate juxtapyloric area while antegrade contractions predominate at a distance 5–6 cm distal to the pylorus. These manometric data together with recent observations of postprandial transpyloric liquid flow, indicate that retrograde duodenogastric propelling of contents may be an important determinant for the gastric emptying rate.
THREE FACTOR MODEL DAN KEPEMILIKAN ASING TERHADAP TINGKAT RETURN

Indonesian government issued various regulations and policies of market liberalization and provide the widest opportunities both local and foreign investors to trade. Stock market liberalization should improve market efficiency is similar to the stock markets of developed countries. Intensive research conducted by Fama and French succeeded in explaining the performance of stocks in developed countries with three factors model approach. This study tried to model the stock markets of Indonesia and the added factor of foreign ownership is considered by some to dominate price movements. This study used a sample of 269 firms from 2008 to 2011 period. The study uses panel data regression. The results showed the market factor, size and book-to-market has a positive effect on returns while foreign ownership factors do not affect significantly
Effects of intraperitoneal hydrogen injection on nitric oxide synthase mRNA and malondialdehyde following limb ischemia-reperfusion in rabbits.

OBJECTIVE The purpose of this study was to investigate the effects of intraperitoneal hydrogen (H2) injection on the mRNA expression levels of inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS) as well as the serum malondialdehyde (MDA) level in a rabbit model of limb ischemia-reperfusion (I/R)-induced skeletal muscle injury. METHODS To establish the hind limb I/R animal model, 30 rabbits were randomly assigned to one of 3 groups: sham, I/R, and ischemia-reperfusion + H2 (IRH). An intraperitoneal injection of H2 was given to the IRH group, while an equivalent amount of air was given to the sham and I/R groups. At 3, 6, 12, and 24 h after reperfusion, serum MDA level as well as skeletal muscle iNOS and eNOS mRNA expression levels were determined. RESULTS Both iNOS mRNA expression and serum MDA levels were higher in the I/R group than the sham group (p<0.01) and lower in the IRH group than the I/R group (p<0.01, p<0.05, respectively) at various time points after reperfusion. The eNOS mRNA expression level exhibited no significant difference between the I/R and sham groups after reperfusion but was significantly higher in the IRH group than in the sham group (p<0.01, p<0.05, respectively). CONCLUSION During the I/R process, the expression of iNOS mRNA was up-regulated along with an increase in MDA. Intraperitoneal injection of H2 can down-regulate iNOS mRNA expression and up-regulate eNOS mRNA expression in the I/R process, suggesting a protective effect of H2 in I/R-induced skeletal muscle injury.
Lack of Association of Mouse Mammary Tumor Virus-Like Sequences in Iranian Breast Cancer Patients

Objective: The present study aimed to detect mouse mammary tumor virus (MMTV)-like sequences in Iranian breast cancer patients in the city of Shiraz, located in southwest Iran. Subjects and Methods: We searched for two MMTV genetic regions in the peripheral blood leukocytes of 300 women with breast cancer, 300 age-matched healthy control subjects, and 50 breast tumor tissues. Two regions of MMTV, 660 bp and 250 bp, were searched by nested polymerase chain reactions. Results: None of the above two regions were detected. There were no differences between the control group and the breast cancer group. Conclusion: Our findings did not show any association of MMTV-like sequences with breast cancer development in Iranian patients in Shiraz.
Spontaneous and Chemically Induced Proliferative Lesions in Tg.AC Transgenic and p53-Heterozygous Mice

Recently, the use of selected genetically altered mouse models in the detection of carcinogens after short-term chemical exposures has been evaluated. Studies of several chemicals conducted by the National Toxicology Program in Tg.AC transgenic and heterozygous p53-deficient mice have been completed recently and represent a major contribution to this effort, as well as the largest accumulation to date of toxicologic pathology data in these 2 lines of mice. The purpose of this report is to describe the proliferative target organ effects observed in this set of studies, as well as to present the tumor profile in the control groups of this data set. These findings provide a comprehensive toxicologic assessment of these 2 genetically altered mouse strains, which are of emerging importance in toxicologic pathology.
Combined use of electroconvulsive therapy and amantadine in adolescent catatonia precipitated by cyber-bullying.

Catatonia is a unique motor dysregulation syndrome characterized by identifiable signs such as immobility, sometimes alternating with excessive motor activity, that is apparently purposeless and not influenced by external stimuli, extreme negativism or muteness, peculiarities of voluntary movement, echolalia, or echopraxia (Fink and Taylor 2009). Catatonia accompanies a number of general medical and neurologic conditions (Dhossche and Wachtel 2010), with acute or insidious onset. In its most severe forms, catatonia may become life threatening, especially when aggravated by autonomic dysfunction and fever. Although previously considered to be rare in children and adolescents (Cohen et al. 1999), recent reports suggest that the prevalence of catatonic symptoms in these age groups is in fact similar to that reported in adults (Ghaziuddin et al. 2012). Overwhelming stress and trauma may trigger catatonia in children and adolescents (Dhossche et al. 2012). Benzodiazepines and electroconvulsive therapy (ECT) are considered first-line treatments (Weiss et al. 2012); however, the literature offers little guidance in cases that do not respond or that respond slowly to a course of these primary treatments. We present an adolescent case with close temporal relationship between onset of catatonia and cyber-bullying, a severe but common stressor nowadays for many adolescents, which resolved with daily ECT and adjunctive amantadine. We did not find any prior published accounts of these features in adolescents.
The Effects of Aging and Training on Skeletal Muscle

Aging results in a gradual loss of muscle function, and there are predictable age-related alterations in skeletal muscle function. The typical adult will lose muscle mass with age; the loss varies according to sex and the level of muscle activity. At the cellular level, muscles loose both cross-sectional area and fiber numbers, with type II muscle fibers being the most affected by aging. Some denervation of fibers may occur. The combination of these factors leads to an increased percentage of type I fibers in older adults. Metabolically, the glycolytic enzymes seem to be little affected by aging, but the aerobic enzymes appear to decline with age. Aged skeletal muscle produces less force and there is a general “slowing” of the mechanical characteristics of muscle. However, neither reduced muscle demand nor the subsequent loss of function is inevitable with aging. These losses can be minimized or even reversed with training. Endurance training can improve the aerobic capacity of muscle, and resistance training can improve central nervous system recruitment of muscle and increase muscle mass. Therefore, physical activity throughout life is encouraged to prevent much of the age-related impact on skeletal muscle.
Dose-proportional pharmacokinetics of budesonide inhaled via Turbuhaler.

AIMS The present pharmacokinetic study was undertaken to determine the dose proportionality of three different doses of budesonide-400 microg, 800 microg or 1600 microg administered twice daily by a dry-powder inhaler (Turbuhaler ) in adult patients with mild asthma. METHODS A total of 38 patients received budesonide by inhalation, 13 received 400 microg twice daily, 12 received 800 microg twice daily and 13 received 1600 microg twice daily. Mean FEV1 at inclusion was 3.4, 4.0 and 3.9 l min-1 in the three groups, respectively. Blood samples were taken after a single dose, and after 3 weeks of daily treatment, for pharmacokinetic evaluation. Plasma concentrations of budesonide were determined by liquid chromatography plus mass spectrometry. RESULTS Eleven evaluable patients remained in each dose group. Mean time to peak budesonide plasma concentration (tmax ) was short (0.28-0.40 h) and did not differ between treatment groups. Budesonide concentrations declined rapidly thereafter, indicating efficient pulmonary absorption and rapid elimination with a half-life of approximately 3 h. Cmax was 1. 4(2.0) nmol l-1 (single (repeated) doses), 2.6(3.6) nmol l-1 and 5. 4(6.4) nmol l-1 after 400, 800 and 1600 microg twice daily, respectively. The corresponding results for the area under the plasma concentration vs time curve (AUC) were 271(325), 490(628) and 915(1096) nmol l-1 min. Ninety percent confidence intervals for pairwise dose-normalized Cmax and AUC comparisons between groups were large but contained unity in all cases, thus indicating dose-proportional pharmacokinetics. Regression on analysis supported these findings. Mean AUC after repeated doses (AUC(0,12 h,RD)) was on average 23% higher than the mean AUC after single doses (AUC(0, infinity,SD)(P=0.04) with no significant differences between doses, indicating slight accumulation following bid dosing. CONCLUSIONS In this relatively small study, budesonide inhaled via Turbuhaler appeared to have dose-proportional pharmacokinetics, both within and above the clinically recommended dose range for asthmatic patients.
Molecular characterization of mudskipper (Boleophthalmus pectinirostris) hypoxia-inducible factor-1α (HIF-1α) and analysis of its function in monocytes/macrophages

Hypoxia-inducible factor-1α (HIF-1α) plays a critical role in immune and inflammatory responses and is important in controlling a variety of processes in monocytes and macrophages. However, very little information is available about the functions of HIF-1α in fish monocytes/macrophages (MO/MФ). In this study, the cDNA sequence of the mudskipper (Boleophthalmus pectinirostris) HIF-1α gene (BpHIF-1α) was determined. Sequence comparison and phylogenetic tree analysis showed that BpHIF-1α is clustered in the fish HIF-1α tree. Constitutive expression of BpHIF-1α mRNA was detected by real-time quantitative PCR in all tested tissues, and the expression was found to be dramatically increased in the skin, liver, spleen, and kidney after Edwardsiella tarda infection. In addition, hypoxia and infection induced the expression of the BpHIF-1α transcript and protein in MO/MФ, respectively. Hypoxia caused an increase in phagocytic and bactericidal capacity of mudskipper MO/MФ in a BpHIF-1α-dependent manner. BpHIF-1α induced an anti-inflammatory status in MO/MФ upon E. tarda infection and hypoxia. Therefore, BpHIF-1α may play a predominant role in the modulation of mudskipper MO/MФ function in the innate immune system.
Who’s in Charge Here? Exercising Authority in the Organization-Volunteer Relationship

One facet of being a volunteer is the freedom to choose one’s work and schedule. When this ability to choose conflicts with the organization’s need to ensure that volunteers’ work activities fulfill its mission, it creates tension between staff members and volunteers and presents a challenge to the organization’s ability to exercise authority over its volunteers. Existing research on volunteerism studies volunteer engagement, motivations, and best practices for managing volunteers, as well as how volunteers can be considered a sustainable resource. The volunteer management literature pays little attention, however, to authority’s role in the relationship between organizations and their volunteers. This study sought to fill the gap in the literature by asking what the authority relationship between organizations and volunteers looks like, what kind of tools and practices are used by organizations to exercise authority, and the impact of the difference between staff members and volunteers within the authority relationship on volunteer management. I conducted semi-structured interviews with volunteers and paid staff members of nonprofit organizations which provide specialized community services. Questions were designed to elicit answers relating to one or more of the research questions. I also obtained documentation in the form of volunteer handbooks (or the equivalent) from each participating organization. The analysis was a multi-step process. Interview responses were coded and sorted out according to the applicable research question. The responses to
The Apoptotic Microtubule Network During the Execution Phase of Apoptosis

Apoptosis is a regulated energy-dependent process of cell death characterized by specific morphological and biochemical features in which caspase activation has a central role. During apoptosis, cells undergo characteristic morphological rear‐ rangements in which the cytoskeleton participates actively. From a historical point of view, this reorganization has been assigned mainly to actinomyosin ring contraction with microtubule and intermediate filaments, both reported to be de‐ polymerized at early stages of apoptosis. However, recent results have shown that the microtubule cytoskeleton is reformed during the execution phase of apoptosis, forming an apoptotic microtubule network (AMN). AMN is closely as‐ sociated with the plasma membrane, forming a cortical ring or cellular “cocoon. ” Apoptotic microtubules’ reorganization has been reported in many cell types and under many apoptotic inducers. Recently, it has been proposed that AMN is es‐ sential for preserving plasma membrane permeability and cell morphology dur‐ ing the execution phase of apoptosis. Apoptotic microtubules’ depolymerization leads cells to secondary necrosis and the release of toxic intracellular contents that can harm surrounding cells and initiate inflammation. Therefore, microtu‐ bules’ reorganization in physiological apoptosis during development and in the adult organism or in pathological apoptosis induced by anticancer treatments or chronic inflammation is essential for tissue homeostasis, preventing cell damage and inflammation.
Transitional Cell Carcinoma of the Urinary Bladder in a Thoroughbred, with Intra-abdominal Dissemination

A 14-year-old Thoroughbred gelding with a history of acute onset of hematuria was presented for necropsy. Transitional cell carcinoma of the urinary bladder with intra-abdominal dissemination was diagnosed. Tumor masses were observed on the splenic capsule and surrounding the distal abdominal aorta. Tumor cells showed diffuse cytoplasmic reactivity for cytokeratin but were negative for epithelial membrane antigen, carcinoembryonic antigen, tumor-associated glycoprotein 72, and vimentin.
Neuroeffector apparatus in gastrointestinal smooth muscle organs

Control of gastrointestinal (GI) movements by enteric motoneurons is critical for orderly processing of food, absorption of nutrients and elimination of wastes. Work over the past several years has suggested that motor neurotransmission is more complicated than simple release of transmitter from nerve terminals and binding of receptors on smooth muscle cells. In fact the ‘neuro‐effector’ junction in the tunica muscularis might consist of synaptic‐like connectivity with specialized cells, and contributions from multiple cell types in integrated post‐junctional responses. Interstitial cells of Cajal (ICC) were proposed as potential mediators in motor neurotransmission based on reduced post‐junctional responses observed in W mutants that have reduced populations of ICC. More recent studies on W mutants have contradicted the original findings, and suggested that ICC may not be significant players in motor neurotransmission. This review examines the evidence for and against the role of ICC in motor neurotransmission and outlines areas for additional investigation that would help further resolve this controversy.
Online Consumer Trust and Live Help Interfaces: The Effects of Text-to-Speech Voice and Three-Dimensional Avatars

With the increasing prevalence of online shopping, many companies have begun to provide "live help" functions, through instant messaging or text chatting, on their Web sites to facilitate interactions between online consumers and customer service representatives (CSRs). The continuing reliance of these functions on text-based communication limits nonverbal communication with consumers and the social contexts for the information conveyed. However, with the help of emerging multimedia technologies, companies can now use computer-generated voice and humanoid avatars to embody CSRs, thus enriching the interactive experiences of their customers. In this study, a laboratory experiment was conducted to empirically test the effects of text-to-speech (TTS) voice and 3-dimensional (3D) avatars on consumer trust toward CSRs. TTS voice was implemented to deliver answers aloud. A 3D avatar served as the humanoid representation of a CSR. The results demonstrated that the presence of TTS voice significantly increases consumers' cognitive and emotional trust toward the CSR. These findings offer practitioners guidelines to improve the interface design of real-time human-to-human communications for e-commerce Web sites.
Fusion Method for Solubility and Dissolution Rate Enhancement of Ibuprofen Using Block Copolymer Poloxamer 407

ABSTRACTAim of current research was to prepare ibuprofen-poloxamer 407 binary mixtures using fusion method and characterize them for their physicochemical and performance properties. Binary mixtures of ibuprofen and poloxamer were prepared in three different ratios (1:0.25, 1:0.5, and 1:0.75, respectively) using a water-jacketed high shear mixer. In vitro dissolution and saturation solubility studies were carried out for the drug, physical mixtures, and formulations for all ratios in de-ionized water, 0.1 N HCl (pH = 1.2), and phosphate buffer (pH = 7.2). Thermal and physical characterization of samples was done using modulated differential scanning calorimetry (mDSC), X-ray powder diffraction (XRD), and infrared spectroscopy (FTIR). Flow properties were evaluated using a powder rheometer. Maximum solubility enhancement was seen in acidic media for fused formulations where the ratio 1:0.75 had 18-fold increase. In vitro dissolution studies showed dissolution rate enhancement for physical mixtures and the formulations in all three media. The most pronounced effect was seen for formulation (1:0.75) in acidic media where the cumulative drug release was 58.27% while for drug, it was 3.67%. Model independent statistical methods and ANOVA based methods were used to check the significance of difference in the dissolution profiles. Thermograms from mDSC showed a characteristic peak for all formulations with Tpeak of around 45°C which suggested formation of a eutectic mixture. XRD data displayed that crystalline nature of ibuprofen was intact in the formulations. This work shows the effect of eutectic formation and micellar solubilization between ibuprofen and poloxamer at the given ratios on its solubility and dissolution rate enhancement.
HIV-1 Subtypes and Response to Combination Antiretroviral Therapy in Europe

Background Combination antiretroviral therapy (cART) may vary in ability to suppress viral load and increase CD4+ T-cell count in people infected with different HIV-1 subtypes, possibly due to differences in resistance development. Antiretroviral drugs have predominantly been developed in Western Europe/North America on the basis of the most prevalent subtype, B. However, non-B subtypes are increasingly spreading worldwide. Objective To compare virological and immunological response to cART between patients infected with B and non-B subtypes across Europe. Design EuroSIDA prospective, observational cohort with 11,928 HIV-1-infected patients. Methods Response to cART was analysed in patients with subtypes determined pre-cART, via multivariable logistic regression on the first measurements 6–12 months after starting cART. A virological response was defined as a viral load <500 copies/ml and immunological response as a CD4+ T-cell count increase of ≥100 cells/mm3. Results Forty-five percent of patients were antiretroviral naive at initiation of cART. Virological suppression was achieved by 58% of 689 subtype-B-infected patients and 66% of 102 non-B-infected patients (P=0.159). After adjustment for potential confounders, there was no significant difference in odds of achieving virological suppression (non-B compared with B; odds ratio [OR]: 1.05, 95% confidence interval [CI]: 0.58–1.93, P=0.866). An immunological response was achieved by 43% of 753 B-infected patients and 48% of 114 non-B-infected patients (P=0.334). After adjustment, there was no significant difference in odds of an immunological response (OR: 1.17, 95% CI: 0.73–1.87, P=0.524). Conclusions There was no evidence of significant differences in virological or immunological response to cART between patients infected with HIV-1 B and non-B subtypes.