Miracle-dz/UniFAR-FTUs huggingface dataset:
Cardiovascular risk factor screening in systemic lupus erythematosus.

OBJECTIVE To evaluate the frequency of cardiovascular (CV) disease risk factor screening in systemic lupus erythematosus (SLE). METHODS Medical records of patients from a lupus clinic and 5 private practices were assessed for CV disease risk factors, including hyperlipidemia, hypertension, diabetes mellitus, smoking, family history of CV disease, antiphospholipid antibodies, hyperhomocysteinemia, postmenopausal status, obesity, and nephrotic syndrome. RESULTS A total of 183 records were included: 60 (33%) from the lupus clinic and 123 (67%) from private practices. Serum lipid profiles were measured in 56/183 (31%): 37/60 (62%) in the lupus clinic vs 19/123 (15%) private practice. Of the 56 with lipids measured, the individual tests obtained were as follows: total cholesterol in 56 (100%), HDL in 50 (89%), triglycerides in 49 (88%), LDL in 48 (86%), and VLDL in 33 (59%). Thirty-one of 56 patients (55%) had elevated lipids. Only 9/25 (36%) with hyperlipidemia who had a subsequent visit had a response to the hyperlipidemia charted. Of 9 nonlipid risk factors, a median of 8 were assessed in the lupus clinic vs 3 in private practices. The most frequent risk factors screened were nephrotic syndrome (91%), hypertension (74%), and smoking (59%). CONCLUSION Despite an inordinately high risk of CV disease in SLE, assessment of CV risk factors was surprisingly uncommon among the practices assessed. Greater attention needs to be paid to CV disease risk factor screening in patients with lupus.
Arthropod- and Host-Specific Borrelia burgdorferi bbk32 Expression and the Inhibition of Spirochete Transmission1

Antisera to BBK32 (a Borrelia burgdorferi fibronectin-binding protein) and BBK50, two Ags synthesized during infection, protect mice from experimental syringe-borne Lyme borreliosis. Therefore, B. burgdorferi bbk32 and bbk50 expression within Ixodes scapularis ticks and the murine host, and the effect of BBK32 and BBK50 antisera on spirochetes throughout the vector-host life cycle were investigated. bbk32 and bbk50 mRNA and protein were first detected within engorged ticks, demonstrating regulated expression within the vector. Then bbk32 expression increased in mice at the cutaneous site of inoculation. During disseminated murine infection, bbk32 and bbk50 were expressed in several murine tissues, and mRNA levels were greatest in the heart and spleen at 30 days. BBK32 antisera protected mice from tick-borne B. burgdorferi infection and spirochete numbers were reduced by 90% within nymphs that engorged on immunized mice. Moreover, 75% of these ticks did not retain spirochetes upon molting, and subsequent B. burgdorferi transmission by adult ticks was impaired. Larval acquisition of B. burgdorferi by I. scapularis was also inhibited by BBK32 antisera. These data demonstrate that bbk32 and bbk50 are expressed during tick engorgement and that BBK32 antisera can interfere with spirochete transmission at various stages of the vector-host life cycle. These studies provide insight into mechanisms of immunity to Lyme borreliosis and other vector-borne diseases.
FLOWERING LOCUS T duplication coordinates reproductive and vegetative growth in perennial poplar

Annual plants grow vegetatively at early developmental stages and then transition to the reproductive stage, followed by senescence in the same year. In contrast, after successive years of vegetative growth at early ages, woody perennial shoot meristems begin repeated transitions between vegetative and reproductive growth at sexual maturity. However, it is unknown how these repeated transitions occur without a developmental conflict between vegetative and reproductive growth. We report that functionally diverged paralogs FLOWERING LOCUS T1 (FT1) and FLOWERING LOCUS T2 (FT2), products of whole-genome duplication and homologs of Arabidopsis thaliana gene FLOWERING LOCUS T (FT), coordinate the repeated cycles of vegetative and reproductive growth in woody perennial poplar (Populus spp.). Our manipulative physiological and genetic experiments coupled with field studies, expression profiling, and network analysis reveal that reproductive onset is determined by FT1 in response to winter temperatures, whereas vegetative growth and inhibition of bud set are promoted by FT2 in response to warm temperatures and long days in the growing season. The basis for functional differentiation between FT1 and FT2 appears to be expression pattern shifts, changes in proteins, and divergence in gene regulatory networks. Thus, temporal separation of reproductive onset and vegetative growth into different seasons via FT1 and FT2 provides seasonality and demonstrates the evolution of a complex perennial adaptive trait after genome duplication.
Directed Mutagenesis of the Rickettsia prowazekii pld Gene Encoding Phospholipase D

ABSTRACT Rickettsia prowazekii, the causative agent of epidemic typhus, is an obligately intracytoplasmic bacterium, a lifestyle that imposes significant barriers to genetic manipulation. The key to understanding how this unique bacterium evades host immunity is the mutagenesis of selected genes hypothesized to be involved in virulence. The R. prowazekii pld gene, encoding a protein with phospholipase D activity, has been associated with phagosomal escape. To demonstrate the feasibility of site-directed knockout mutagenesis of rickettsial genes and to generate a nonrevertible vaccine strain, we utilized homologous recombination to generate a pld mutant of the virulent R. prowazekii strain Madrid Evir. Using linear DNA for transformation, a double-crossover event resulted in the replacement of the rickettsial wild-type gene with a partially deleted pld gene. Linear DNA was used to prevent potentially revertible single-crossover events resulting in plasmid insertion. Southern blot and PCR analyses were used to confirm the presence of the desired mutation and to demonstrate clonality. While no phenotypic differences were observed between the mutant and wild-type strains when grown in tissue culture, the pld mutant exhibited attenuated virulence in the guinea pig model. In addition, animals immunized with the mutant strain were protected against subsequent challenge with the virulent Breinl strain, suggesting that this transformant could serve as a nonrevertible, attenuated vaccine strain. This study demonstrates the feasibility of generating site-directed rickettsial gene mutants, providing a new tool for understanding rickettsial biology and furthering advances in the prevention of epidemic typhus.
Hetero-oligomeric Assembly of P2X Receptor Subunits

P2X receptors are a distinct family of ligand-gated ion channels activated by extracellular ATP. Each of the seven identified subunit proteins (P2X1 through P2X7) has been reported to form functional homo-oligomeric channels when expressed in heterologous systems. Functional studies of native receptors, together with patterns of subunit gene expression, suggest that hetero-oligomeric assembly among members of this family may also occur. This prediction is supported by reports describing hetero-oligomeric assembly for three different recombinant subunit combinations. In this report, we systematically examined the ability of all members of the P2X receptor family to interact using a co-immunoprecipitation assay. The seven P2X receptor subunits were differentially epitope-tagged and expressed in various combinations in human embryonic kidney 293 cells. It was found that six of the seven subunits formed homo-oligomeric complexes, the exception being P2X6. When co-assembly between pairs of subunits was examined, all were able to form hetero-oligomeric assemblies with the exception of P2X7. Whereas P2X1, P2X2, P2X5, and P2X6 were able to assemble with most subunits, P2X3 and P2X4presented a more restricted pattern of co-association. These results suggest that hetero-oligomeric assembly might underlie functional discrepancies observed between P2X responses seen in the native and recombinant settings, while providing for an increased diversity of signaling by ATP.
Functional and clinical outcomes following surgical treatment in patients with cervical spondylotic myelopathy: a prospective study of 81 cases.

OBJECT Cervical spondylotic myelopathy (CSM) is the most common cause of spinal dysfunction in the elderly. Operative management is beneficial for most patients with moderate/severe myelopathy. This study examines the potential confounding effects of age, sex, duration of symptoms, and comorbidities on the functional outcomes and postoperative complications in patients who underwent cervical decompressive surgery. METHODS We included consecutive patients who underwent surgery from December 2005 to October 2007. Functional outcomes were assessed using the Nurick grading system and the modified Japanese Orthopaedic Association and Berg Balance scales. Comorbidity indices included the Charlson Comorbidity Index and the number of ICD-9 codes. RESULTS There were 57 men and 24 women with a mean age of 57 years (range 32-88 years). The mean duration of symptoms was 25.2 months (range 1-120 months). There was a significant functional recovery from baseline to 6 months after surgery (p < 0.01). Postoperative complications occurred in 18.5% of cases. Although the occurrence of complications was not significantly associated with sex (p = 0.188), number of ICD-9 codes (p = 0.113), duration of symptoms (p = 0.309), surgical approach (p = 0.248), or number of spine levels treated (p = 0.454), logistic regression analysis showed that patients who developed complications were significantly older than patients who had no complications (p = 0.018). Only older age (p < 0.002) and greater number of ICD-9 codes (p < 0.01) were significantly associated with poorer functional recovery after surgical treatment. However, none of the studied factors were significantly associated with clinically relevant functional recovery after surgical treatment for CSM (p > 0.05). CONCLUSIONS Our results indicate that surgery for CSM is associated with significant functional recovery, which appears to reach a plateau at 6 months after surgery. Age is a potential predictor of complications after decompressive surgery for CSM. Whereas older patients with a greater number of preexisting medical comorbidities had less favorable functional outcomes after surgery for CSM in the multivariate regression analysis, none of the studied factors were associated with clinically relevant functional recovery after surgery in the logistic regression analysis. Therefore, age-matched protocols based on preexisting medical comorbidities may reduce the risk for postoperative complications and improve functional outcomes after surgical treatment for CSM.
Target‐derived BDNF (brain‐derived neurotrophic factor) is essential for the survival of developing neurons in the isthmo‐optic nucleus

Neurons in the peripheral nervous system depend on single neurotrophic factors, whereas those in the brain are thought to utilize many different trophic factors. This study examined whether some neurons in the brain critically depend on a single trophic factor during development. Neurons in the isthmo‐optic nucleus (ION) of chick embryos respond to exogenous brain‐derived neurotrophic factor (BDNF). Relatively high concentrations of endogenous BDNF were present in the ION of 14–18‐day‐old chick embryos. ION target cells in the retina were immunolabeled for BDNF but showed surprisingly low levels of BDNF mRNA. These data suggest that ION target cells derive some BDNF from other retinal sources. No BDNF mRNA was detected in the ION itself. ION neurons had a very efficient retrograde transport system for BDNF and exogenous BDNF arrived in the ION intact. When the ION was deprived of endogenous trkB ligands by injection of trkB fusion proteins in the eye, cell death of ION neurons was enhanced, and this effect was mimicked by BDNF‐specific blocking antibodies in the eye. TrkB fusion proteins in the retina induced cell death of ION neurons prior to visible effects on ION target cells in the retina. Immunolabel for endogenous BDNF was sparse in pyknotic ION neurons, suggesting that ION neurons with low BDNF content were eliminated by apoptosis. These data show that BDNF is an essential target‐derived trophic factor for developing ION neurons and thereby validate the neurotrophic hypothesis for at least one neuronal population in the brain. J. Comp. Neurol. 433:550–564, 2001. © 2001 Wiley‐Liss, Inc.
Melatonin regulates the rhythmic migration of neutrophils in live zebrafish

The circadian clock plays a vital role in physiology and behavior such as the sleep–wake cycle and blood pressure and hormone levels. Immune responses also display circadian rhythmicity and particularly pineal melatonin contributes to immunological processes. Little attention, however, is given to mechanisms underlying rhythmic neutrophil responses to the injury. Here, we used a transgenic Tg(lyz:EGFP) zebrafish tail fin transection model to investigate whether the recruitment of neutrophils toward the injured site is regulated by the circadian clock. We found that migrating neutrophils display robust rhythmicity, peaking at darkness. Melatonin positively regulates rhythmic neutrophil migration, as evidenced that treatment with melatonin at low dosage can significantly enhance neutrophil recruitment toward the injured site, which is attenuated by luzindole treatment and in pinealectomized fish. Furthermore, using a transgenic zebrafish eyeball model, we observed that melatonin enhances secretion of two cytokines, TNF‐α and IL‐8, both of which markedly enhance neutrophil migration. Taken together, these results highlight a positive role of melatonin in rhythmic neutrophil migration and help obtain a better understanding of circadian regulation in immunology.
Precios y calidad de las importaciones españolas de productos textiles

Este trabajo tiene el objetivo de estudiar los niveles relativos de precios y calidad de las importaciones espanolas de productos textiles segun su origen geografico; para ello, se calculan indices translog de precios que permiten atribuir las diferencias en el valor unitario de los flujos de importacion a los distintos niveles de calidad de los productos que los integran y a diferencias en sus precios. El analisis se lleva a cabo para el periodo 1993-1997, con una desagregacion de seis digitos de la Nomenclatura Combinada y datos de EUROSTAT. Se obtiene que las diferencias en los valores unitarios de las importaciones espanolas segun su origen son muy notables, correspondiendo los mayores niveles a las procedentes de paises europeos en comparacion con las que proceden de China y los paises asiaticos. El menor valor unitario de las importaciones asiaticas responde, fundamentalmente, a sus menores precios y, aunque los niveles de calidad son por lo general favorables a las importaciones de paises europeos, las diferencias sobre tales niveles son menos significativas.
Special session: hampering fault attacks against lattice-based signature schemes - countermeasures and their efficiency

Research on physical attacks on lattice-based cryptography has seen some progress in recent years and first attacks and countermeasures have been described. In this work, we perform an exhaustive literature review on fault attacks on lattice-based encryption and signature schemes. Based on this, we provide a complete overview of suggested countermeasures and analyze which of the proposed attacks can prevented by respective countermeasures. Moreover, we show for selected countermeasures how they affect the runtime of the protected operations.
Marked erythropoietin increase before fall in Hb after treatment with cytostatic drugs suggests mechanism other than anaemia for stimulation

Summary. Serum erythropoietin (Epo) was measured in 23 patients before, during and after intensive cytostatic treatment courses for acute leukaemia or before bone marrow transplantation. A marked increase was seen in all patients, starting 1 or 2 d after initiation of treatment. A peak was reached after about 7 d, at levels as high as 1450 IU/l, after which Epo fell rapidly, even in patients who were anaemic at that time. In 13 of the patients there was no fall in Hb level that could explain the increase in Epo. The increase was too large to be explained by an altered Epo metabolism or marrow utilization. Cytostatic drugs cause an increase in Epo production not mediated through anaemia, possibly initiated by a cytostatic effect on the kidneys or by an unknown stimulatory factor, responsive to bone marrow inhibition.
When privacy meets economics: Enabling differentially-private battery-supported meter reporting in smart grid

Millions of the smart meters, as essential components, are being deployed ubiquitously in the next generation power system. However, the public privacy concerns over the users' power consumption leakage raise, since the smart meters' unintermittent readings contain customers' behavior patterns. To alleviate this problem, the state-of-the-art techniques are common to use a rechargeable battery to hide the actual power consumption. Unfortunately, none of the existing works completely provide a rigorous privacy protection with reasonable cost under real-world battery settings, i.e., achieving the well-known differential privacy guarantee economically using batteries with limited charge/discharge rate and capacity. To attain this goal, this paper proposes a differentially private meter reading report mechanism. The main idea is to first narrow down the domain of the noise distribution parameter, in order to decrease the possibility of violating the battery limits. It also combines a multi-armed bandit algorithm to further reduce the cost as much as possible. In addition, a novel switch mechanism is proposed to prevent the meter from reporting its reading when the battery limitations might be violated. The theoretical analysis provides a formal proof of the privacy guarantee of the proposed scheme. Besides, experimental results show that the privacy protection of the proposed scheme is at least nine times stronger than that of the existing solutions with acceptable extra cost.
Electroencephalographic Studies of Skilled Psychomotor Performance

Measurements based on the EEG have featured prominently in shaping present-day concepts of the neurocognitive aspects of skilled performance. The techniques include measurements of spectral power, interelectrode coherence, event-related potential components such as the P300, slow potentials, and the method of cognitive inference. The advantages offered by EEG-based approaches lies in their spatiotemporal resolution (potentially 1 mm and less than 1 millisecond, respectively) and the potential to preserve ecological validity, i.e., to obtain measurements of cortical function under the same conditions that the task is normally performed. These studies indicate that activity is reduced in specific regions of the cerebral cortex of experts relative to that observed in novices. These changes occur over time as a result of practice. The authors argue that such cortical change results in less attentional demand and less cognitive interference with motor planning and execution. The findings attest to the plasticity of the central nervous system when one is engaged in goal-directed learning, and hold implications for understanding how the nervous system acquires voluntary skills, whether in the context of the training of an athlete or the rehabilitation of a patient who has lost motor skills due to a disease of the nervous system.
Taking the Blood Bank to the Field: The Design and Rationale of the Prehospital Air Medical Plasma (PAMPer) Trial

Abstract Hemorrhage and trauma induced coagulopathy remain major drivers of early preventable mortality in military and civilian trauma. Interest in the use of prehospital plasma in hemorrhaging patients as a primary resuscitation agent has grown recently. Trauma center-based damage control resuscitation using early and aggressive plasma transfusion has consistently demonstrated improved outcomes in hemorrhaging patients. Additionally, plasma has been shown to have several favorable immunomodulatory effects. Preliminary evidence with prehospital plasma transfusion has demonstrated feasibility and improved short-term outcomes. Applying state-of-the-art resuscitation strategies to the civilian prehospital arena is compelling. We describe here the rationale, design, and challenges of the Prehospital Air Medical Plasma (PAMPer) trial. The primary objective is to determine the effect of prehospital plasma transfusion during air medical transport on 30-day mortality in patients at risk for traumatic hemorrhage. This study is a multicenter cluster randomized clinical trial. The trial will enroll trauma patients with profound hypotension (SBP ≤ 70 mmHg) or hypotension (SBP 71–90 mmHg) and tachycardia (HR ≥ 108 bpm) from six level I trauma center air medical transport programs. The trial will also explore the effects of prehospital plasma transfusion on the coagulation and inflammatory response following injury. The trial will be conducted under exception for informed consent for emergency research with an investigational new drug approval from the U.S. Food and Drug Administration utilizing a multipronged community consultation process. It is one of three ongoing Department of Defense-funded trials aimed at expanding our understanding of the optimal therapeutic approaches to coagulopathy in the hemorrhaging trauma patient.
Vacuum-Assisted Closure: State of Clinic Art

Summary: Treatment of wounds has been the cornerstone of plastic surgery since its inception. Vacuum-assisted closure provides a new paradigm that can be used in concert with a wide variety of standard existing plastic surgery techniques. It was originally developed as an alternative treatment for debilitated patients with chronic wounds. It has rapidly evolved into a widely accepted treatment of chronic and acute wounds, contaminated wounds, burns, envenomations, infiltrations, and wound complications from failed operations. The ease of technique and a high rate of success have encouraged its adaptation by thoracic, general, trauma, burn, orthopedic, urologic, as well as plastic surgeons. This article discusses multidisciplinary advances in the use of the vacuum-assisted closure technique over the past 10 years and its status as of 2006. Creative surgeons continue to regularly adapt the system to difficult problems. This technique in trained surgical hands greatly enhances the scope and safety of wound treatment.