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https://www.readbyqxmd.com/read/28215052/predicting-pregnancy-outcomes-using-longitudinal-information-a-penalized-splines-mixed-effects-model-approach
#1
Rolando De la Cruz, Claudio Fuentes, Cristian Meza, Dae-Jin Lee, Ana Arribas-Gil
We propose a semiparametric nonlinear mixed-effects model (SNMM) using penalized splines to classify longitudinal data and improve the prediction of a binary outcome. The work is motivated by a study in which different hormone levels were measured during the early stages of pregnancy, and the challenge is using this information to predict normal versus abnormal pregnancy outcomes. The aim of this paper is to compare models and estimation strategies on the basis of alternative formulations of SNMMs depending on the characteristics of the data set under consideration...
February 19, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28215039/impact-of-surgical-experience-on-management-and-outcome-of-pancreatic-surgery-performed-in-high-and-low-volume-centers
#2
Marco Stella, Massimiliano Bissolati, Daniele Gentile, Alessandro Arriciati
Pancreaticoduodenectomy (PD) is one of the procedures in general surgery with the highest rate of life-threatening complications. The positive impact of the volume-outcome ratio on outcomes and mortality in pancreatic surgery (PS) has led to policy-level efforts toward centralization of care for PS that is currently under evaluation by some Regional Health Services. The role of the surgeon's experience and training is still under debate. The aim of this paper is to compare the outcomes of PS by the same surgeon in a high volume (HV) and in a low volume (LV) hospital to assess whether a specific training in PS could outdo the benefits of hospital volume...
February 18, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28215037/the-italian-dystonia-registry-rationale-design-and-preliminary-findings
#3
Giovanni Defazio, M Esposito, G Abbruzzese, C L Scaglione, G Fabbrini, G Ferrazzano, S Peluso, R Pellicciari, A F Gigante, G Cossu, R Arca, L Avanzino, F Bono, M R Mazza, L Bertolasi, R Bacchin, R Eleopra, C Lettieri, F Morgante, M C Altavista, L Polidori, R Liguori, S Misceo, G Squintani, M Tinazzi, R Ceravolo, E Unti, L Magistrelli, M Coletti Moja, N Modugno, M Petracca, N Tambasco, M S Cotelli, M Aguggia, A Pisani, M Romano, M Zibetti, A R Bentivoglio, A Albanese, P Girlanda, A Berardelli
The Italian Dystonia Registry is a multicenter data collection system that will prospectively assess the phenomenology and natural history of adult-onset dystonia and will serve as a basis for future etiological, pathophysiological and therapeutic studies. In the first 6 months of activity, 20 movement disorders Italian centres have adhered to the registry and 664 patients have been recruited. Baseline historical information from this cohort provides the first general overview of adult-onset dystonia in Italy...
February 18, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28215026/separation-of-peptides-on-superficially-porous-particle-based-macrocyclic-glycopeptide-liquid-chromatography-stationary-phases-consideration-of-fast-separations
#4
Rasangi M Wimalasinghe, Zachary S Breitbach, Jauh T Lee, Daniel W Armstrong
Macrocyclic glycopeptide based liquid chromatography stationary phases are known for their highly selective peptide separations. Fast and ultrafast (t R < 1 min) high-efficiency separations were achieved with superficially porous particle (SPP)-based stationary phases. Separations of pharmaceutically important classes of peptides such as enkephalins and bradykinins have been achieved in less than 5 min in isocratic elution modes. Selectivity for peptides structurally similar to one another was increased with use of teicoplanin-based stationary phases compared with commercial C18 stationary phases...
February 18, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28214998/optimal-visual-haptic-integration-with-articulated-tools
#5
Chie Takahashi, Simon J Watt
When we feel and see an object, the nervous system integrates visual and haptic information optimally, exploiting the redundancy in multiple signals to estimate properties more precisely than is possible from either signal alone. We examined whether optimal integration is similarly achieved when using articulated tools. Such tools (tongs, pliers, etc) are a defining characteristic of human hand function, but complicate the classical sensory 'correspondence problem' underlying multisensory integration. Optimal integration requires establishing the relationship between signals acquired by different sensors (hand and eye) and, therefore, in fundamentally unrelated units...
February 18, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28214997/the-human-rit2-core-promoter-short-tandem-repeat-predominant-allele-is-species-specific-in-length-a-selective-advantage-for-human-evolution
#6
Babak Emamalizadeh, Abofazl Movafagh, Hossein Darvish, Somayeh Kazeminasab, Monavvar Andarva, Pegah Namdar-Aligoodarzi, Mina Ohadi
Evolutionary analyses of the critical core promoter interval support a selective advantage for expanding the length of certain short tandem repeats (STRs) in humans. We recently reported genome-wide data on human core promoter STRs that are "exceptionally long" (≥6-repeats). Near the top of the list, the neuron-specific gene, RIT2, contains one of the longest GA-STRs at 11-repeats. In the present study, we analyzed the evolutionary implications of this STR across species. We also studied this STR in a sample of 2,143 Iranian human subjects that encompassed a number of neuropsychiatric disorders and controls...
February 18, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28214988/an-alternative-splice-variant-of-human-%C3%AE-a-crystallin-modulates-the-oligomer-ensemble-and-the-chaperone-activity-of-%C3%AE-crystallins
#7
Waldemar Preis, Annika Bestehorn, Johannes Buchner, Martin Haslbeck
In humans, ten genes encode small heat shock proteins with lens αA-crystallin and αB-crystallin representing two of the most prominent members. The canonical isoforms of αA-crystallin and αB-crystallin collaborate in the eye lens to prevent irreversible protein aggregation and preserve visual acuity. α-Crystallins form large polydisperse homo-oligomers and hetero-oligomers and as part of the proteostasis system bind substrate proteins in non-native conformations, thereby stabilizing them. Here, we analyzed a previously uncharacterized, alternative splice variant (isoform 2) of human αA-crystallin with an exchanged N-terminal sequence...
February 18, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28214955/ranibizumab-versus-aflibercept-for-macular-edema-due-to-central-retinal-vein-occlusion-18-month-results-in-real-life-data
#8
Irini Chatziralli, George Theodossiadis, Marilita M Moschos, Panagiotis Mitropoulos, Panagiotis Theodossiadis
PURPOSE: The objective of this study was to compare the anatomical and functional outcomes of ranibizumab versus aflibercept for the treatment of macular edema due to central retinal vein occlusion (CRVO) in routine clinical practice. METHODS: Participants in this observational study included 62 treatment-naïve patients with CRVO who received intravitreal injections of either ranibizumab or aflibercept. The demographic data, best-corrected visual acuity (BCVA) and spectral-domain optical coherence tomography (SD-OCT) characteristics were evaluated at baseline and at months 1, 2, 3, 6, 12 and 18 post-treatment...
February 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28214936/an-assessment-of-strontium-sorption-onto-bentonite-buffer-material-in-waste-repository
#9
Pankaj Pathak
In the present study, changes occurring in sorption characteristics of a representative bentonite (WIn-BT) exposed to SrCl2 (0.001-0.1 M) under the pH range of 1-13 were investigated. Such interaction revealed a significant variation in surface charge density and binding energy of ions with respect to bentonite, and alteration in their physicochemical properties viz., specific surface area, cation exchange capacity, thermal and mechanical behaviour were observed. The distribution coefficients (k d) calculated for sorption onto virgin (UCBT) and contaminated bentonite (CBT) indicated a greater influence of mineralogical changes occurred with variance of pH and strontium concentration...
February 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28214924/characteristics-and-outcomes-of-rheumatoid-arthritis-patients-who-started-biosimilar-infliximab
#10
Yoon-Kyoung Sung, Soo-Kyung Cho, Dam Kim, Soyoung Won, Chan-Bum Choi, So-Young Bang, Seung-Jae Hong, Hyoun Ah Kim, Eun-Mi Koh, Hye-Soon Lee, Chang-Hee Suh, Dae-Hyun Yoo, Sang-Cheol Bae
To compare the characteristics of rheumatoid arthritis (RA) patients receiving either biosimilar or originator infliximab and to identify the effectiveness and safety of biosimilar infliximab in RA patients in real-world practice. RA patients who started either biosimilar or originator infliximab were selected using the prospective biologic disease-modifying anti-rheumatic drugs (DMARDs) registry: BIOlogics Pharmacoepidemiologic StudY (BIOPSY). Baseline characteristics of the two groups were compared, and short-term treatment outcomes, including DAS28-ESR and HAQ-DI scores, were compared after initiation of biosimilar or originator infliximab...
February 18, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28214920/detection-of-brucella-sp-infection-through-serological-microbiological-and-molecular-methods-applied-to-buffaloes-in-maranh%C3%A3-o-state-brazil
#11
Larissa Sarmento Dos Santos, Joicy Cortez Sá, Diego Luiz Dos Santos Ribeiro, Nancyleni Pinto Chaves, Juliana Pinto da Silva Mol, Renato Lima Santos, Tatiane Alves da Paixão, Alcina Vieira de Carvalho Neta
The aim of the current study is to diagnose Brucella spp. infection using methods such as serology, bacterial isolation, and molecular analysis in buffaloes bred in Maranhão State. In order to do so, 390 samples of buffalo serum were subjected to serological tests, to Rose Bengal Plate Test (RBPT) and to 2-mercaptoethanol (2-ME) combined with slow agglutination test (SAT). Vaginal swabs were collected from seropositive animals and subjected to bacterial isolation and to generic PCR. According to the serological test, 16 animals had a positive reaction to the confirmatory test (2-ME/SAT)...
February 18, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28214902/impact-of-renal-disease-on-patients-with-hepatitis-c-a-retrospective-analysis-of-disease-burden-clinical-outcomes-and-health-care-utilization-and-cost
#12
Craig A Solid, Senaka A Peter, Tanya Natwick, Haifeng Guo, Allan J Collins, Jean Marie Arduino
BACKGROUND/AIMS: Few studies explore the magnitude of the disease burden and health care utilization imposed by renal disease among patients with hepatitis C virus (HCV). We aimed to describe the characteristics, outcomes, and health care utilization and costs of patients with HCV with and without renal impairment. METHODS: This retrospective analysis used 2 administrative claims databases: the US commercially insured population in Truven Health MarketScan® data (aged 20-64 years), and the US Medicare fee-for-service population in the Medicare 20% sample (aged ≥65 years)...
February 18, 2017: Nephron
https://www.readbyqxmd.com/read/28214887/liquid-biopsy-for-cancer-circulating-tumor-cells-circulating-free-dna-or-exosomes
#13
Wei Zhang, Wenjie Xia, Zhengye Lv, Chao Ni, Yin Xin, Liu Yang
Precision medicine and personalized medicine are based on the development of biomarkers, and liquid biopsy has been reported to be able to detect biomarkers that carry information on tumor development and progression. Compared with traditional 'solid biopsy', which cannot always be performed to determine tumor dynamics, liquid biopsy has notable advantages in that it is a noninvasive modality that can provide diagnostic and prognostic information prior to treatment, during treatment and during progression. In this review, we describe the source, characteristics, technology for detection and current situation of circulating tumor cells, circulating free DNA and exosomes used for diagnosis, recurrence monitoring, prognosis assessment and medication planning...
February 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214872/higher-numbers-of-t-bet-tumor-infiltrating-lymphocytes-associate-with-better-survival-in-human-epithelial-ovarian-cancer
#14
Yun Xu, Lujun Chen, Bin Xu, Yuqi Xiong, Min Yang, Xiaohui Rui, Liangrong Shi, Changping Wu, Jingting Jiang, Binfeng Lu
BACKGROUND/AIMS: T-bet, a member of the T-box family of transcription factors, is a key marker of type I immune response within the tumor microenvironment, and has been previously reported by us to serve as an important prognostic indicator for human gastric cancer patients and a potential biomarker for immunotherapy. In the present study, we aimed to assess the clinical significance and prognostic value of T-bet+ tumor-infiltrating lymphocytes in human epithelial ovarian cancer. METHODS: The immunohistochemistry was used to analyze the infiltration density of T-bet+ lymphoid cells in human epithelial ovarian cancer tissues, and the flow cytometry analysis was used to further analyze the presence of T-bet+ tumor-infiltrating lymphocytes subgroups in cancer tissues...
January 30, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214792/suppression-of-tumorigenicity-2-in-heart-failure-with-preserved-ejection-fraction
#15
Omar F AbouEzzeddine, Paul M McKie, Shannon M Dunlay, Susanna R Stevens, G Michael Felker, Barry A Borlaug, Horng H Chen, Russell P Tracy, Eugene Braunwald, Margaret M Redfield
BACKGROUND: Soluble suppression of tumorigenicity 2 (sST2) receptor is a biomarker that is elevated in certain systemic inflammatory diseases. Comorbidity-driven microvascular inflammation is postulated to play a key role in heart failure with preserved ejection fraction (HFpEF) pathophysiology, but data on how sST2 relates to clinical characteristics or inflammatory conditions or biomarkers in HFpEF are limited. We sought to determine circulating levels and clinical correlates of sST2 in HFpEF...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28214777/utility-of-long-term-video-eeg-monitoring-for-children-with-staring
#16
Anup D Patel, Babitha Haridas, Zachary M Grinspan, Jack Stevens
OBJECTIVE: Staring spells are a common reason for referral to overnight epilepsy monitoring unit (EMU) evaluation. However, inpatient EMU admissions are expensive and time consuming. This study determined what percentage of those referred for staring had a confirmed epileptic seizure on long-term video-EEG monitoring (LTM) and developed a scoring system to help prioritize which patients should undergo this procedure. METHODS: We performed a four-year retrospective chart review of all children at a tertiary pediatric hospital who received LTM (long-term monitoring) for the purposes of characterizing staring...
February 16, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28214764/recurrent-falls-and-its-risk-factors-among-older-men-living-in-the-veterans-retirement-communities-a-cross-sectional-study
#17
Cheng-Hao Hung, Chih-Jen Wang, Ting-Ching Tang, Liang-Yu Chen, Li-Ning Peng, Fei-Yuan Hsiao, Liang-Kung Chen
AIM: To evaluate the prevalence of recurrent falls and their risk factors among older men living in the Veterans Homes in Taiwan. METHODS: This cross-sectional study enrolled 871 residents and all participants received the comprehensive geriatric assessment, including Barthel Index, Mini-Mental Status Examination (MMSE), Geriatric Depression Scale-5 questions (GDS-5), Mini-Nutrition Assessment Short Form (MNA-SF), the status of urinary incontinence, stool incontinence, polypharmacy, past history of falls, multimorbidity, and medication history...
February 4, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28214761/foreign-body-in-the-bladder-a-case-report
#18
Kota Shimokihara, Takashi Kawahara, Yutaro Hayashi, Sohgo Tsutsumi, Daiji Takamoto, Taku Mochizuki, Yusuke Hattori, Jun-Ichi Teranishi, Yasuhide Miyoshi, Yasushi Yumura, Masahiro Yao, Hiroji Uemura
Foreign bodies are occasionally reported in the bladder. In most cases, the foreign body is removed via the transurethral approach. A 57-year-old male patient was referred to our hospital to undergo the retrieval of a foreign body from his bladder. However, the foreign body had become severely calcified and could not be removed transurethrally. Thus, an open bladder wall incision was necessary to remove it. We herein report a case of a foreign body in the bladder that had become calcified and which was successfully removed using a higher bladder incision approach...
February 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28214759/the-role-of-hcg-increment-in-the-48h-prior-to-methotrexate-treatment-as-a-predictor-for-treatment-success
#19
Aviad Cohen, Benny Almog, Yoni Cohen, Guy Bibi, Eli Rimon, Ishai Levin
OBJECTIVE: To evaluate the role HCG change in the 48h prior to methotrexate treatment as a predictor for treatment success. STUDY DESIGN: Medical records of all women who were diagnosed with ectopic pregnancy between January 2001 and June 2013 were reviewed. Four hundred and nine patients received methotrexate due to ectopic pregnancy. The "single dose" methotrexate protocol with 50mg/m(2) was administered to patients with progressing ectopic pregnancy. HCG levels in days 1, 4 and 7 were used to evaluate methotrexate treatment success...
February 9, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28214739/characterizing-users-of-new-psychoactive-substances-using-psychometric-scales-for-risk-related-behavior
#20
Annabel Vreeker, Babette G van der Burg, Margriet van Laar, Tibor M Brunt
INTRODUCTION: Studies investigating risk-related behavior in relation to new psychoactive substance (NPS) use are sparse. The current study investigated characteristics of NPS users by comparing risk-related behavior of NPS users to that of illicit drugs (ID) users and licit substances users and non-users (NLC) users. METHODS: In this cross-sectional study we included 528 individuals across an age range of 18-72years. Using a web-based questionnaire we collected self-report data on substance use, sensation seeking, impulsivity, peer substance use and risk perception of substance use...
February 10, 2017: Addictive Behaviors
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