Miracle-dz/UniFAR-FTUs huggingface dataset:
Occupational Attainment as Risk Factor for Progression from Mild Cognitive Impairment to Alzheimer's Disease: A CREDOS Study.

High occupational attainment has been known as a marker of cognitive reserve. Previous studies in the general population have shown that high occupational attainment is associated with reduced risk of Alzheimer's disease (AD). However, few studies have assessed the effect of occupational attainment on the clinical course of mild cognitive impairment (MCI). In this study, we evaluated whether individuals with high occupational attainment show more frequent progression from MCI to AD. Participants (n = 961) with MCI were recruited from a nationwide, hospital-based multi-center cohort, and were followed for up to 60 months (median: 17.64, interquartile range [12.36, 29.28]). We used Cox regression for competing risks to analyze the effect of occupational attainment on development of AD, treating dementia other than AD as a competing risk. Among the 961 individuals with MCI, a total of 280 (29.1%) converted to dementia during the follow-up period. The risk of progression to AD was higher in the individuals with high occupational attainment after controlling for potential confounders (hazard ratio = 1.83, 95% confidence interval = 1.25-2.69, p = 0.002). High occupational attainment in individuals with MCI is an independent risk factor for higher progression rate of MCI to AD. This result suggests that the protective effect of high occupational attainment against cognitive decline disappears in the MCI stage, and that careful assessment of occupational history can yield important clinical information for prognosis in individuals with MCI.
(1→3)-β-d-Glucan and Galactomannan for Differentiating Chemical “Black Particles” and Fungal Particles Inside Peritoneal Dialysis Tubing

♦ Background: Aseptic, sheet-like foreign bodies observed inside Tenckhoff (TK) catheter lumens (referred to as “black particles”) are, on gross morphology, hardly distinguishable from fungal colonization because these contaminants adhere tightly to the catheter. Detection of fungal cell wall components using (1→3)-β-d-glucan (BG) and galactomannan index (GMI) might be an alternative method for differentiating the particles. ♦ Methods: Foreign particles retrieved from TK catheters in 19 peritoneal dialysis patients were examined microscopically and cultured for fungi and bacteria. Simultaneously, a Fungitell test (Associates of Cape Cod, Falmouth, MA, USA) and a Platelia Aspergillus ELISA assay (Bio-Rad Laboratories, Marnes-La-Coquette, France) were used to test the spent dialysate for BG and GMI respectively. ♦ Results: Of the 19 patients, 9 had aseptic black particles and 10 had fungal particles in their tubing. The fungal particles looked grainy, were tightly bound to the catheter, and appeared more “colorful” than the black particles, which looked sheet-like and could easily be removed by milking the tubing. Compared with effluent from patients having aseptic particles, effluent from patients with fungal particles had significantly higher levels of BG (501 ± 70 pg/mL vs. 46 ± 10 pg/mL) and GMI (10.98 ± 2.17 vs. 0.25 ± 0.05). Most of the fungi that formed colonies inside the catheter lumen were molds not usually found in clinical practice, but likely from water or soil, suggesting environmental contamination. Interestingly, in all 10 patients with fungal colonization, visualization of black particles preceded a peritonitis episode and TK catheter removal by approximately 1–3 weeks; in patients with aseptic particles, a 17-week onset to peritonitis was observed. ♦ Conclusions: In all patients with particle-coated peritoneal dialysis tubing, spent dialysate should be screened for BG and GMI. Manipulation of the TK catheter by squeezing, hard flushing, or even brushing to dislodge black particles should be avoided. Replacement of the TK catheter should be suspended until a cause for the particles is determined.
Capability analyses of mdtmFTP

A decade ago it was theorized that if enough parallel processing power was thrown at an I/O problem, the bottleneck would shift towards the NIC’s link speed [1]. However, today NUMA architecture changes this paradigm, it also matters on which cores these threads are located and how they are managed [2]. Transport protocols are also critical in high latency networks, TCP’s congestion control algorithm is window based and every time a congestion event is detected, the window size is reduced to half. This congestion control algorithm has significant limitations on HBDP (High Bandwidth Delay Product) network environments [3]. This research project report delves into the capabilities of mdtmFTP (Multicore-Aware Data Transfer Middleware File Transfer Protocol) [4] and compares it to Globus GridFTP [5] using transatlantic data transfer experiments on a 100 Gbit/s light path between Amsterdam and Chicago with a RTT (Round Trip Time) of 95 ms. mdtmFTP aims to accelerate data movement toolkits on multicore systems by using an application level resource scheduler which is aware of the underlying hardware topology. Globus GridFTP will be configured with both TCP and UDT [6] to evaluate UDT’s effectiveness on HBDP network environments. UDT is an application-level data transport protocol that uses UDP to transfer bulk data, while implementing its own reliability and congestion control mechanisms and can be enabled as a Globus XIO driver in Globus GridFTP [1]. A variety of experiments will conclude which tool optimally utilizes the 100 Gbit/s transatlantic light path.
Adjuvant Stereotactic Radiosurgery for Anaplastic Ependymoma

Object: The purpose of this retrospective study is to evaluate the role of stereotactic radiosurgery using the Gamma Knife as an adjuvant to other modalities used in the treatment of malignant ependymomas of both children and adults and to assess its efficacy in terms of tumor control and overall survival. Method: Between 1987 and 1998, 22 patients in the age range of 1.5–65 years (mean age 22.3) with progressive anaplastic ependymoma were treated by stereotactic radiosurgery using the 201 source Co-60 Leksell Gamma Knife at the University of Pittsburgh. The irradiated tumor volume varied from 0.84 to 36.8 cm3 (mean 13.7). The median dose delivered to the tumor margin was 16.1 Gy (range 10–20), and the mean maximal dose was 32.2 Gy (range 20–40). The disease-free survival, the tumor control rate and the overall survival were recorded to evaluate the efficacy of radiosurgery. The median follow-up from radiosurgery was 21 months (range 4–84). Results: Median survival after radiosurgery was 2.2 years (46.6 ± 12.1% 5-year actuarial). Median survival from the initial diagnosis was 10.1 years (50.3 ± 12.5% at 5 years, 37.7 ± 14.4% at 10 years). Reduction or stabilization of the treated tumor was seen in 16 out of 22 (68%) patients. Forty-one percent of the patients eventually developed delayed distant cerebral recurrence outside the treated volume. The 5-year actuarial rates for local control and cranial control at any location were 62.3 ± 13.6% and 32.4 ± 10.8%, respectively. No complication occurred as a side effect of radiosurgery. Conclusion: For patients with locally recurrent or progressive anaplastic ependymomas, Gamma Knife stereotactic radiosurgery proved to be safe and effective as a salvage adjuvant therapy to achieve local tumor control and improve survival.
Slope Authentication at the Physical Layer

Authentication is a key requirement for secure communications. In this paper, we consider authentication in a wireless system at the physical layer. There are two main authentication methods at the physical layer in the existing literature, authentication with time division multiplexed tag (Auth-TDM) and authentication with superimposed tag (Auth-SUP). However, there are drawbacks in the existing authentication methods. The Auth-TDM method requires additional bandwidth. The Auth-SUP method corrupts the entire data message. Moreover, regarding the purpose of authentication, both methods require additional complicated preprocessing such as channel estimation and message symbol recovery through demodulation and decoding. This paper proposes a new authentication method at the physical layer, referred to as slope authentication at the physical layer. The proposed method not only overcomes the aforementioned drawbacks but also is designed to be covert to the unware user, robust to interference, and secure for identity verification. The tradeoffs by considering different goals are discussed and analyzed in block-fading channels.
The controversial role of mast cells in fibrosis

Fibrosis is a medical condition characterized by an excessive deposition of extracellular matrix compounds such as collagen in tissues. Fibrotic lesions are present in many diseases and can affect all organs. The excessive extracellular matrix accumulation in these conditions can often have serious consequences and in many cases be life‐threatening. A typical event seen in many fibrotic conditions is a profound accumulation of mast cells (MCs), suggesting that these cells can contribute to the pathology. Indeed, there is now substantialv evidence pointing to an important role of MCs in fibrotic disease. However, investigations from various clinical settings and different animal models have arrived at partly contradictory conclusions as to how MCs affect fibrosis, with many studies suggesting a detrimental role of MCs whereas others suggest that MCs can be protective. Here, we review the current knowledge of how MCs can affect fibrosis.
Transgenic Mice Expressing Dominant-Negative Bright Exhibit Defects in B1 B Cells1

The transcription factor Bright up-regulates Ig H chain production from select V region promoters and requires Bright dimerization, Bruton’s tyrosine kinase (Btk), and the Btk substrate, TFII-I, for this activity. Defects in Btk cause X-linked immunodeficiency disease in mice and humans. Btk-deficient mice exhibit decreased serum IgM production, B cell developmental blocks, absence of peritoneal B1 cells, and subnormal immune responses against Ags, including phosphorylcholine, which confer protection against Streptococcus pneumoniae. Transgenic mice expressing dominant-negative Bright share similarities with Btk-deficient mice, including decreased serum IgM, poor anti-phosphorylcholine responses, and slightly reduced numbers of mature B cells. Although dominant-negative Bright mice developed B1 B cells, these were functionally deficient in Ig secretion. These data suggest a mechanistic explanation for the abnormal responses to phosphorylcholine observed in Btk-deficient mice, and indicate that Bright functions in a subset of Btk-dependent pathways in vivo, particularly those responses dominated by B1 B cells.
MAIT cells and viruses

Mucosal associated invariant T cells (MAIT cells) bear a T cell receptor (TCR) that specifically targets microbially derived metabolites. Functionally, they respond to bacteria and yeasts, which possess the riboflavin pathway, essential for production of such metabolites and which are presented on MR1. Viruses cannot generate these ligands, so a priori, they should not be recognized by MAIT cells and indeed this is true when considering recognition through the TCR. However, MAIT cells are distinctive in another respect, since they respond quite sensitively to non‐TCR signals, especially in the form of inflammatory cytokines. Thus, a number of groups have shown that virus infection can be “sensed” by MAIT cells and a functional response invoked. Since MAIT cells are abundant in humans, especially in tissues such as the liver, the question has arisen as to whether this TCR‐independent MAIT cell triggering by viruses plays any role in vivo. In this review, we will discuss the evidence for this phenomenon and some common features which emerge across different recent studies in this area.
Oxytocinergic neurons in rat hypothalamus. Dexamethasone-reversible increase in their corticotropin-releasing factor-41-like immunoreactivity in response to osmotic stimulation.

Recent results have demonstrated altered corticotropin-releasing factor (CRF)-41 content of the neurointermediate lobe (NIL) of the pituitary gland in response to various manipulations including osmotic stimulation. This study was undertaken to determine whether changes in CRF-41 content of the NIL are accompanied by changes in intensity of CRF-41-like immunoreactivity (CRF-41-LI) of neurosecretory neurones of the hypothalamus in response to osmotic stimulation. Wistar rats of both sexes given either tap water ad libitum, 2% NaCl solution, or access to tap water was limited to 20 min daily, for 7 days. Subsets of rats from each group were adrenalectomized (ADX) or treated with dexamethasone (DEX). Thirty-six hour before perfusion with fixative consisting of buffered formaldehyde and picric acid, animals received 75 micrograms colchicine i.c. v. Forty micrometer thick vibratome sections were stained for CRF-LI, arginine vasopressin (AVP-LI) and oxytocin (OXY-LI) using the avidin-biotin-peroxidase complex method. In response to both types of osmotic stimulation magnocellular neurones of the paraventricular (PVN) and supraoptic nuclei (SON) showed increased CRF-LI, AVP-LI and OXY-LI, while CRF-LI of parvocellular perikarya of the PVN decreased. The enhanced CRF-LI seemed to appear in a subset of magnocellular neurones with OXY-LI but not AVP-LI. Increased staining intensities were also observed in magnocellular neurones in ADX rats challenged osmotically. In contrast, systemic DEX administration, as well as implantation of DEX in the area on the SON, sharply attenuated CRF-LI but not AVP-LI or OXY-LI of magnocellular neurones in osmotically stimulated rats. (ABSTRACT TRUNCATED AT 250 WORDS)
210Po in Human Saliva of Smokeless Tobacco Users

Abstract The occurrence and mobility of 210Po in oral smokeless tobacco products (STPs) were determined because its effects on human health must be taken into account. This research was subdivided into two parts: determination by alpha spectrometry of the 210Po activity concentration in 16 oral smokeless tobacco products of different brands purchased in local specialty stores in Europe and evaluation of its percent extraction into an artificial salivary gland during sucking or chewing operations. Polonium-210 was detected in all samples, and its concentrations ranged from 3.46 to 14.8 Bq kg−1 (mean value of 7.45 ± 3.82 Bq kg−1). The highest concentration was found in chewing tobacco. The samples showed no significant difference in the content of 210Po level. The data obtained in this study show that the polonium, although poorly extracted (12.8 ± 8.96%) by artificial saliva, is not totally retained within the smokeless tobacco products, with a consequent potential health hazard associated with oral use of these products.
Births in the United States, 2016.

This report presents several key demographic and maternal and infant health indicators using 2016 final birth data. Trends in the general fertility rate (the number of births per 1,000 women aged 15–44), age-specific birth rates, cesarean delivery, preterm, and triplet and higher-order multiple birth rates are presented by age of mother. For each indicator, data for 2016 are compared with 2015, and also with a year representing a recent high or low rate.
Treatment of Multilevel Cervical Spondylotic Myeloradiculopathy With Posterior Decompression and Fusion With Lateral Mass Plate Fixation and Local Bone Graft

This is a retrospective review of 32 patients with multilevel cervical myelopathy treated by laminectomy and lateral mass plate fusion. The prognosis of surgically treated myelopathy is evaluated as well as prognostic factors for recovery of myelopathy. Diagnoses included cervical spondylosis or ossification of the posterior longitudinal ligament. Final follow-up was at 15.2 months (mean) postoperatively. Myelopathy was graded preoperatively and postoperatively by the system of Nurick. All patients had preoperative radiographs and magnetic resonance imaging (MRI). The presence of abnormal T2-weighted MRI signal (myelomalacia) was noted. Postoperative studies included flexion–extension radiographs to assess fusion and MRI to evaluate decompression of neural elements and resolution of myelomalacia. Severity of preoperative Nurick myelopathy, presence of myelomalacia, and age were evaluated as potential prognostic indicators for surgically treated myelopathy. Mean Nurick score improved from 2.6 (range 1–4) to 1.8 (range 0–3) postoperatively (p < 0.0001). Twenty-two patients (71%) had improvement in Nurick grade of at least one point, and nine showed no improvement. No patients had deterioration of Nurick grade. Preoperative myelomalacia was noted in 15 (47%) patients, and all 15 had residual myelomalacia postoperatively. Severe myelopathy, age, and myelomalacia had no prognostic value for improvement of myelopathy. Complications included pseudarthrosis (3%), wound infection (9%), and transient C5 palsy (6%). This study demonstrates excellent outcomes from laminectomy and fusion in multilevel cervical myelopathy. A high rate of improvement of myelopathy was observed, neurologic deterioration did not occur, and complication rates were low. Severe myelopathy and myelomalacia on preoperative MRI had no prognostic value.
BRIM‐P: A phase I, open‐label, multicenter, dose‐escalation study of vemurafenib in pediatric patients with surgically incurable, BRAF mutation‐positive melanoma

Vemurafenib, a selective inhibitor of BRAF kinase, is approved for the treatment of adult stage IIIc/IV BRAF V600 mutation‐positive melanoma. We conducted a phase I, open‐label, dose‐escalation study in pediatric patients aged 12–17 years with this tumor type (NCT01519323).
Somatostatin messenger RNA in hypothalamic neurons is increased by testosterone through activation of androgen receptors and not by aromatization to estradiol.

Growth hormone (GH) secretory patterns are influenced by sex steroids, at least in part, through modulation of the secretion of hypothalamic somatostatin (SS) and GH-releasing hormone. Neurons in the periventricular nucleus (PeN) expressing the messenger RNA (mRNA) for SS are modulated by physiological levels of testosterone. However, it is uncertain whether testosterone's action is mediated directly by androgen receptor activation or indirectly through aromatization to estradiol and subsequent binding to the estrogen receptor. We examined this question by evaluating the effectiveness of 17 beta-estradiol and the nonaromatizable androgen, dihydrotestosterone (DHT), to mimic the effects of testosterone. Adult male rats were castrated and implanted subcutaneously with a Silastic capsule that contained either testosterone, 17 beta-estradiol or DHT, or a sham capsule. Intact animals were sham-operated. We used in situ hybridization to assess the effect of these treatments on SS mRNA signal levels in individual neurons of the hypothalamus. Following castration, SS mRNA content was reduced in cells of the PeN (intact, 195 +/- 12 grains/cell, vs. castrated, 139 +/- 4 grains/cell). Replacement with physiological levels of testosterone prevented the decline in SS mRNA signal levels (castrated testosterone-replaced, 214 +/- 15 grains/cell) as did replacement with the nonaromatizable androgen DHT (castrated DHT-replaced, 213 +/- 16 grains/cell). Treatment with 17 beta-estradiol failed to prevent the postcastration decline in SS mRNA content (castrated estrogen-replaced, 145 +/- 4 grains/cell). Castrated 17 beta-estradiol-treated animals were not significantly different from the castrated sham-treated animals (castrated, 139 +/- 4 grains/cell, vs. castrated estrogen-replaced, 145 +/- 4 grains/cell). (ABSTRACT TRUNCATED AT 250 WORDS)
Dynamics of B Cell Recovery In Kidney/Bone Marrow Transplant Recipients

Background Previous studies identified B cell gene signatures and predominance of specific B cell subsets as a marker of operational tolerance after kidney transplantation. These findings suggested a role for B cells in the establishment or maintenance of tolerance. Here we analyzed B cell recovery in 4 subjects, 3 of whom achieved tolerance after combined kidney/bone marrow transplantation. Methods Peripheral B cell subsets were examined longitudinally by flow cytometry. Immunoglobulin heavy chain repertoire analysis was performed using next-generation sequencing. Lastly, the patients’ serum reactivity to HLA was assessed by Luminex. Results B cell counts recovered approximately 1 year posttransplant except for 1 subject who experienced delayed reconstitution. This subject resumed immunosuppression for acute rejection at 10 months posttransplant and underwent preemptive retransplantation at 3 years for chronic rejection. B cell recovery was accompanied by a high frequency of CD20 + CD24highCD38high transitional B cells and a diversified clonal repertoire. However, all 4 subjects showed prevalence of CD20 + CD27+ memory B cells around 6 months posttransplant when B cell counts were still low and the clonal B cell repertoire very limited. The predominance of memory B cells was also associated with high levels of somatically mutated immunoglobulin heavy chain variable sequences and transient serum reactivity to HLA. Conclusions Our observations reveal the presence of memory B cells early posttransplant that likely escaped the preparative regimen at a time consistent with the establishment of tolerance. Further studies are warranted to characterize the functional properties of these persisting memory cells and evaluate their potential contribution to tolerance induction.
Relationship Between Objective Financial Burden and the Health-Related Quality of Life and Mental Health of Patients With Cancer.

PURPOSE The high and increasing costs of cancer care can lead to financial burden for patients and their families. However, no study has specifically examined the association between objective measures of financial burden and the health-related quality of life (HRQOL) and psychological health of patients with cancer. METHODS Data on patients with cancer were obtained from the 2010 to 2014 Medical Expenditure Panel Survey. High financial burden was defined as a ratio of annual family out-of-pocket health care expenditures to family income exceeding either 10% or 20%. Multivariable linear regressions were used to estimate the relationship between high financial burden and patient HRQOL, nonspecific psychological distress, and depressed mood. RESULTS Of 6,799 patients with cancer, 15% and 6% experienced high financial burden exceeding 10% and 20% of family income, respectively. Compared with those without high financial burden, patients with cancer with high financial burden were more likely to have significantly lower HRQOL and a greater tendency toward nonspecific psychological distress. Higher levels of financial burden were associated with lower HRQOL, with a stronger relationship observed with physical health than with mental health and a greater tendency toward nonspecific psychological distress. Depressed mood was not significantly associated with high financial burden. CONCLUSION High financial burden among patients with cancer was significantly associated with lower HRQOL and poor mental health. Along with efforts to reduce health care costs for cancer survivors, additional interventions are necessary to ensure the HRQOL and psychological health of cancer survivors.