bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pain Management in Abdominal Wall Reconstruction
Authors: Khansa Ibrahim , Koogler Andrew , Richards Jesse , Bryant Richard , Janis Jeffrey E. 
Published: June 2017

Background:
In abdominal wall reconstruction, adequate pain control and minimization of narcotic consumption are essential to improving patient outcomes and satisfaction. Previous studies have examined the role of individual strategies, such as neuraxial analgesia and multimodal analgesia. However, there has not been a study that examined all potential determinants of postoperative narcotic requirements, including intraoperative strategies.

Methods:
Consecutive patients who underwent abdominal wall reconstruction were reviewed. Preoperative factors (chronic preoperative narcotic usage, indication for abdominal wall reconstruction, administration of neuraxial analgesia), intraoperative factors (intraoperative narcotics administered, method of mesh fixation), and postoperative factors (multimodal analgesia, complications) were collected. The main outcomes were daily amount of opioids used and length of hospital stay.

Results:
Ninety-three patients were included in the study. Patients who had an epidural required lower doses of opioids postoperatively, while those on chronic preoperative opioids, those whose mesh was fixated using transfascial sutures, and those who received large doses of opioids intraoperatively required higher doses of postoperative opioids. Hospital length of stay was longer in patients who received transfascially sutured mesh and those on chronic opioids preoperatively.

Conclusions:
This study provides potential strategies to improve pain control and minimize narcotic consumption postoperatively in patients undergoing abdominal wall reconstruction. Intraoperative administration of opioids should be minimized to avoid the development of tolerance. Epidural analgesia reduces postoperative narcotic requirement and may be especially beneficial in patients at highest risk for postoperative pain, including those on chronic opioids, and those in whom transfascial sutures are used for mesh fixation.
Effect of Continuity of Care on Drug-Drug Interactions
Authors: Guo Jiun-Yu , Chou Yiing-Jenq , Pu Christy 
Published: June 2017

Background:
Drug-drug interaction (DDI) is a critical concern in health care systems because it is directly associated with patient outcomes and is generally preventable. However, few studies have been conducted on whether poor continuity of care (COC) is a determinant of DDIs and whether this effect varies by level of comorbidity. Patients with higher comorbidity normally require more complex treatment regimens than other patients, and hence their COC is more critical for ensuring the accuracy of their medication information.

Objective:
This study investigated the association between COC and DDI, with COC being measured as physician and site COC. The effect of comorbidities on DDI events was also analyzed.

Methods:
The Taiwan National Health Insurance claims data of ∼1,000,000 randomly selected insurance beneficiaries were used. Each person was longitudinally followed from 2005 to 2013. Negative nominal regressions were estimated to determine the effect of COC on DDI.

Results:
Higher COC was found to decrease the risk of DDI, and this risk reduction was even greater with physician COC and a higher Charlson comorbidity index. In the 1-year observation interval, patients exhibited a 3% reduction in DDIs for every 0.1 increment in their COC index. The ability of COC to reduce DDIs increased with the level of comorbidity. Similar results were observed when the observation interval was increased.

Conclusions:
Improving COC is critical for reducing DDIs. The effect of high-quality COC on the reduction of DDI is more significant for patients with higher levels of comorbidity; thus, they should be targeted to improve COC.
Rat model of cancer-induced bone pain: changes in nonnociceptive sensory neurons in vivo
Authors: Zhu Yong Fang , Ungard Robert , Zacal Natalie , Huizinga Jan D. , Henry James L. , Singh Gurmit 
Published: June 2017

Abstract

Introduction:
Clinical data on cancer-induced bone pain (CIBP) suggest extensive changes in sensory function. In a previous investigation of an animal model of CIBP, we have observed that changes in intrinsic membrane properties and excitability of dorsal root ganglion (DRG) nociceptive neurons correspond to mechanical allodynia and hyperalgesia.

Objectives:
To investigate the mechanisms underlying changes in nonnociceptive sensory neurons in this model, we have compared the electrophysiological properties of primary nonnociceptive sensory neurons at <1 and >2 weeks after CIBP model induction with properties in sham control animals.

Methods:
Copenhagen rats were injected with 106 MAT-LyLu rat prostate cancer cells into the distal femur epiphysis to generate a model of CIBP. After von Frey tactile measurement of mechanical withdrawal thresholds, the animals were prepared for acute electrophysiological recordings of mechanically sensitive neurons in the DRG in vivo.

Results:
The mechanical withdrawal threshold progressively decreased in CIBP model rats. At <1 week after model induction, there were no changes observed in nonnociceptive Aβ-fiber DRG neurons between CIBP model rats and sham rats. However, at >2 weeks, the Aβ-fiber low-threshold mechanoreceptors (LTMs) in CIBP model rats exhibited a slowing of the dynamics of action potential (AP) genesis, including wider AP duration and lower AP amplitude compared with sham rats. Furthermore, enhanced excitability of Aβ-fiber LTM neurons was observed as an excitatory discharge in response to intracellular injection of depolarizing current into the soma.

Conclusion:
After induction of the CIBP model, Aβ-fiber LTMs at >2 weeks but not <1 week had undergone changes in electrophysiological properties. Importantly, changes observed are consistent with observations in models of peripheral neuropathy. Thus, Aβ-fiber nonnociceptive primary sensory neurons might be involved in the peripheral sensitization and tumor-induced tactile hypersensitivity in CIBP.
Brief Report: HIV/HBV Coinfection is a Significant Risk Factor for Liver Fibrosis in Tanzanian HIV-Infected Adults
Authors: Hawkins Claudia , Christian Beatrice , Fabian Emanuel , Macha Irene , Gawile Cecilia , Mpangala Shida , Ulenga Nzovu , Thio Chloe L. , Ammerman Lauren R. , Mugusi Ferdinand , Fawzi Wafaie , Green Richard , Murphy Robert 
Published: June 2017

Background:
In sub-Saharan Africa, the burden of liver disease associated with chronic hepatitis B virus (HBV) and HIV is unknown. We characterized liver disease using aspartate aminotransferase-to-platelet ratio index (APRI) and FIB-4 in patients with HIV, HBV, and HIV/HBV coinfection in Tanzania.

Methods:
Using a cross-sectional design, we compared the prevalence of liver fibrosis in treatment-naive HIV monoinfected, HBV monoinfected, and HIV/HBV-coinfected adults enrolled at Management and Development for Health (MDH)-supported HIV treatment clinics in Dar es Salaam, Tanzania. Risk factors associated with significant fibrosis (APRI >0.5 and FIB-4 >1.45) were examined.

Results:
Two hundred sixty-seven HIV-infected, 165 HBV-infected, and 63 HIV/HBV-coinfected patients were analyzed [44% men, median age 37 (interquartile range 14), body mass index 23 (7)]. APRI and FIB-4 were strongly correlated (r = 0.78, P < 0.001, R2 = 0.61). Overall median APRI scores were low {HIV/HBV [0.36 (interquartile range 0.4)], HIV [0.23 (0.17)], HBV [0.29 (0.15)] (P < 0.01)}. In multivariate analyses, HIV/HBV coinfection was associated with APRI >0.5 [HIV/HBV vs. HIV: odds ratio (OR) 3.78 (95% confidence interval: 1.91 to 7.50)], [HIV/HBV vs. HBV: OR 2.61 (1.26 to 5.44)]. HIV RNA per 1 log10 copies/mL increase [OR 1.53 (95% confidence interval: 1.04 to 2.26)] and HBV DNA per 1 log10 copies/mL increase [OR 1.36 (1.15, 1.62)] were independently associated with APRI >0.5 in HIV-infected and HBV-infected patients, respectively.

Conclusions:
HIV/HBV coinfection is an important risk factor for significant fibrosis. Higher levels of circulating HIV and HBV virus may play a direct role in liver fibrogenesis. Prompt diagnosis and aggressive monitoring of liver disease in HIV/HBV coinfection is warranted.
Hypercapnia-Induced Amelioration of the Intestinal Microvascular Oxygenation in Sepsis is Independent of the Endogenous Sympathetic Nervous System
Authors: Schulz Jan , Schöneborn Sabrina , Vollmer Christian , Truse Richard , Herminghaus Anna , Bauer Inge , Beck Christopher , Picker Olaf 
Published: June 2017

ABSTRACT

Introduction:
Insufficient microvascular oxygenation (μHBO2) of the intestinal mucosa worsens outcome of septic patients. Hypercapnia ameliorates μHBO2, mediated via endogenous vasopressin release. Under physiological conditions, blockade of the endogenous sympathetic nervous system abolishes this protective effect of hypercapnia. The aim of our study was therefore to evaluate the role of the endogenous sympathetic nervous system during hypercapnia on intestinal μHBO2 under septic conditions.

Methods:
We randomized 80 male Wistar rats into eight groups. Sepsis was induced via colon ascendens stent peritonitis. The animals were subjected to 120 min of normocapnic (pCO2 35 mm Hg–45 mm Hg) or moderate hypercapnic (pCO2 65 mm Hg–75 mm Hg) ventilation 24 h after surgery. Animals received sympathetic blockade (hexamethonium 15 mg · kg−1 (bolus) followed by 15 mg · kg−1 · h−1 (infusion) intravenously) or the same volume as vehicle (NaCl 0.9%). Microcirculatory oxygenation (μHBO2) and perfusion (μflow) were recorded using tissue reflectance spectrophotometry and laser Doppler.

Results:
In septic animals, μHBO2 decreased during normocapnia (−8.9 ± 4%) and increased during hypercapnia (+7.8 ± 7.5%). The additional application of hexamethonium did not influence these effects. μHBO2 declined in normocapnic septic animals treated with hexamethonium similar to normocapnia alone (−6.1 ± 5.4%) and increased in hypercapnic animals treated with hexamethonium similar to hypercapnia alone (+7.9 ± 11.7%). Furthermore, hypercapnic ventilation ameliorated microcirculatory perfusion (μflow) irrespective of whether animals received hexamethonium (from 113 ± 54 [AU] to 206 ± 87 [AU]) or vehicle (from 97 ± 37 [AU]–169 ± 52 [AU]).

Conclusion:
The amelioration of the intestinal microcirculation during hypercapnia in sepsis is independent of the endogenous sympathetic nervous system.
Circulating Exosomes Isolated from Septic Mice Induce Cardiovascular Hyperpermeability Through Promoting Podosome Cluster Formation
Authors: Mu Xingjiang , Wang Xiaohong , Huang Wei , Wang Rui-Tao , Essandoh Kobina , Li Yutian , Pugh Amanda M. , Peng Jiangtong , Deng Shan , Wang Yigang , Caldwell Charles C. , Peng Tianqing , Yu Kai-Jiang , Fan Guo-Chang 
Published: June 2017

ABSTRACT
Septic shock increases vascular permeability, leading to multiple organ failure including cardiac dysfunction, a major contributor to septic death. Podosome, an actin-based dynamic membrane structure, plays critical roles in extracellular matrix degradation and angiogenesis. However, whether podosome contributes to endothelial barrier dysfunction during septic shock remains unknown. In this study, we found that the endothelial hyperpermeability, stimulated by phorbol 12-myristate 13-acetate and thrombin, was accompanied by increased formation of podosome clusters at the cell periphery, indicating a positive correlation between podosome clusters and endothelial leakage. Interestingly, we observed that circulating exosomes collected from septic mice were able to stimulate podosome cluster formation in cardiac endothelial cells, together with increased permeability in vitro/in vivo and cardiac dysfunction. Mechanistically, we identified that septic exosomes contained higher levels of reactive oxygen species (ROS) than normal ones, which were effectively transported to endothelial cells (ECs). Depletion of ROS in septic exosomes significantly reduced their capacity for promoting podosome cluster formation and thereby dampened vascular leakage. Finally, we elucidated that podosome cluster-induced endothelial hyperpermeability was associated with fragmentation/depletion of zonula occludens-1 (ZO-1) at the cell periphery. Our results demonstrate that septic exosomes were enriched with high amounts of ROS, which can be transported to ECs, leading to the generation of podosome clusters in target ECs and thereby, causing ZO-1 relocation, vascular leakage, and cardiac dysfunction.
Retroperitoneal Hemorrhage After Sacral Neurostimulator Placement for Urgency Urinary Incontinence
Authors: Kinman Casey L. , Hobson Deslyn T.G. , Agrawal Anubhav , Vyleta Martin S. , Francis Sean L. 
Published: June 2017

Abstract
Sacral neuromodulation (SNM) is an effective therapy for patients who experience urinary incontinence, idiopathic urinary retention, and fecal incontinence. Although typically a low-risk procedure, rarely, it can be associated with significant hemorrhage. A 61-year-old woman on chronic anticoagulation underwent uncomplicated implantation of SNM for refractory urgency urinary incontinence. Anticoagulation was held on the day of surgery and resumed on postoperative day 1. On postoperative day 2, the patient developed an extensive retroperitoneal hemorrhage. This was successfully treated by angioembolization of the left lateral sacral artery with the InterStim device left in situ. At 6-month follow-up, the device was functioning properly, and the patient's urinary symptoms were well controlled. Retroperitoneal hemorrhage is a rare complication after SNM placement. Conservative management with angioembolization should be considered as a first-line approach.
Preimplantation Kidney Biopsies of Extended Criteria Donors Have a Heavier Inflammatory Burden Than Kidneys From Standard Criteria Donors
Authors: Mazeti-Felicio Camila M. , Caldas Heloisa C. , Fernandes-Charpiot Ida M.M. , Dezotti Camila Z. , Baptista Maria A.S.F. , Abbud-Filho Mario 
Published: June 2017

Background
Donors after brain death develop a systemic proinflammatory state that may predispose the kidneys to injury after transplantation. Because it is not known whether this inflammatory environment similarly affects the kidneys from expanded criteria donor (ECD) and standard criteria donors (SCD), we sought to evaluate differences in the gene expression of inflammatory cytokines in preimplantation biopsies (PIBx) from ECD and SCD kidneys.

Methods
Cytokines gene expression was measured in 80 PIBx (SCD, 52; ECD, 28) and associated with donor variables.

Results
Normal histology and chronic histological lesions were not different between both types of kidneys. ECD kidneys showed significant increase in the transcripts of MCP-1, RANTES, TGF-β1, and IL-10 when compared with SCD. Kidneys presenting normal histology had similar inflammatory profile except by a higher expression of RANTES observed in ECD (P = 0.04). Interstitial fibrosis and tubular atrophy (interstitial fibrosis and tubular atrophy ≥ 1) were associated with higher expression of TGF-β1, RANTES, and IL-10 in ECD compared with SCD kidneys. Cold ischemia time of 24 hours or longer was significantly associated with upregulation of FOXP3, MCP-1, RANTES, and IL10, whereas longer duration of donor hospitalization significantly increased gene expression of all markers. High FOXP3 expression was also associated with lower level of serum creatinine at 1 year. Donor age was not associated with any of the transcripts studied.

Conclusions
PIBx of ECD exhibit a higher gene expression of inflammatory cytokines when compared with SCD kidneys. This molecular profile may be a specific ECD kidney response to brain death and may help to predict the posttransplant outcomes of ECD recipients.
Outcomes of Liver Transplant Recipients With Autoimmune Liver Disease Using Long-Term Dual Immunosuppression Regimen Without Corticosteroid
Authors: Satapathy Sanjaya K. , Jones Ollie D. , Vanatta Jason M. , Kamal Faisal , Kedia Satish K. , Jiang Yu , Nair Satheesh P. , Eason James D. 
Published: June 2017

Background
Liver transplant (LT) recipients with autoimmune liver disease (primary sclerosing cholangitis, primary biliary cholangitis, autoimmune hepatitis) are at increased risk of developing acute cellular rejection (ACR), and in many cases graft failure due to recurrent disease. We describe our experience with dual immunosuppression without steroid maintenance and analyze its effect on disease recurrence; ACR; patient and graft survivals; and complications, such as sepsis and de novo malignancy.

Methods
We included 74 consecutive LT recipients (April 2006 to April 2013) with autoimmune liver disease (primary sclerosing cholangitis, 20; primary biliary cholangitis, 23; autoimmune hepatitis, 31) from a single transplant center. Immunosuppression protocol included rabbit antithymocyte globulin for induction and mycophenolate mofetil with tacrolimus or sirolimus/everolimus indefinitely for maintenance.

Results
Overall 1-, 3-, 5-, and 7-year patient survival was 95.9%, 90.4%, 82,2% and 74.9%, re–graft-free survival was 93.2%, 86.3%, 79.9%, and 72.8%, respectively (median follow-up, 5.5 years). In a multivariate Cox regression analysis, sepsis during post-LT period (P = 0.040; hazard ratio [HR], 2.52; 95% confidence interval [CI], 1.04-6.11), steroid use for ACR (P = 0.037; HR, 2.60; 95% CI, 1.06-6.34), and younger age (<40 years) at LT (P = 0.038; HR, 2.53; 95% CI, 1.05-6.10) predicted graft survival, whereas steroid use for ACR was the only variable that was predictive of overall patient survival (P = 0.004; HR, 4.10; 95% CI, 1.59-10.52). Overall, 34 biopsy-proven ACR was noted in 22 LT recipients (30%), 13 (17.5%) had disease recurrence, and 34 episodes of sepsis occurred in 19 patients.

Conclusions
Dual immunosuppression protocol in LT recipients with autoimmune liver disease without corticosteroid maintenance had acceptable rates of survival and ACR without predisposing patients to the adverse effects of long-term steroid therapy.
MIP-MAP: High Throughput Mapping ofCaenorhabditis elegansTemperature Sensitive Mutants via Molecular Inversion Probes
Authors: Mok CA , Au V , Thompson OA , Edgley ML , Gevirtzman L , Yochem J , Lowry J , Memar N , Wallenfang M , Rasoloson D , Bowerman B , Schnabel R , Seydoux G , Moerman DG , Waterston RH 
Published: June 2017

AbstractTemperature sensitive (TS) alleles are important tools for the genetic and functional analysis of essential genes in many model organisms. While isolating TS alleles is not difficult, determining the TS-conferring mutation can be problematic. Even with whole-genome sequencing (WGS) data there is a paucity of predictive methods for identifying TS alleles from DNA sequence alone. We assembled 173 TS lethal mutants ofCaenorhabditis elegansand used WGS to identify several hundred mutations per strain. We leveraged single molecule molecular inversion probes (MIPs) to sequence variant sites at high depth in the cross-progeny of TS mutants and a mapping strain with identified sequence variants but no apparent phenotypic differences from the reference N2 strain. By sampling for variants at ~1Mb intervals across the genome we genetically mapped mutant alleles at a resolution comparable to current standards in a process we call MIP-MAP. The MIP-MAP protocol, however, permits high-throughput sequencing of multiple TS mutation mapping libraries at less than 200K reads per library. Using MIP-MAP on a subset of TS mutants, via a competitive selection assay and standard recombinant mutant selection, we defined TS-associated intervals of 3Mb or less. Our results suggest this collection of strains contains a diverse library of TS alleles for genes involved in development and reproduction. MIP-MAP is a robust method to genetically map mutations in both viable and essential genes. The MIPs protocol should allow high-throughput tracking of genetic variants in any mixed population.
Evolutionary proteomics uncovers ciliary signaling components
Authors: Sigg Monika Abedin , Menchen Tabea , Johnson Jeffery , Lee Chanjae , Choksi Semil P. , Garcia Galo , Busengdal Henriette , Dougherty Gerard , Pennekamp Petra , Werner Claudius , Rentzsch Fabian , Krogan Nevan , Wallingford John B. , Omran Heymut , Reiter Jeremy F. 
Published: June 2017

ABSTRACTCilia are organelles specialized for movement and signaling. To infer when during animal evolution signaling pathways became associated with cilia, we characterized the proteomes of cilia from three organisms: sea urchins, sea anemones and choanoflagellates. From these ciliomes, we identified 437 high confidence ciliary candidate proteins conserved in mammals, including known regulators of Hh, GPCR and TRP channel signaling. The phylogenetic profiles of their ciliary association indicate that the Hh and GPCR pathways were linked to cilia before the origin of bilateria and TRP channels before the origin of animals. We demonstrated that some of the candidates not previously implicated in ciliary biology localized to cilia and further investigated ENKUR, a TRP channel-interacting protein that we identified in the cilia of all three organisms. In animals, ENKUR is expressed by cells with motile cilia, ENKUR localizes to cilia in diverse organisms and, in bothXenopus laevisand mice, ENKUR is required for patterning the left/right axis. Moreover, mutation ofENKURcauses situs inversus in humans. Thus, proteomic profiling of cilia from diverse eukaryotes defines a conserved ciliary proteome, reveals ancient connections to Hh, GPCR and TRP channel signaling, and uncovers a novel ciliary protein that controls vertebrate development and human disease.
Fractional Field Theory Approach to Protein Folding Dynamics
Authors: Nasrolahpour Hosein 
Published: June 2017

AbstractUnderstanding biological complexity is one of the most important scientific challenges nowadays. Protein folding is a complex process involving many interactions between the molecules. Fractional calculus is an effective modeling tool for complex systems and processes. In this work we have proposed a new fractional field theoretical approach to protein folding.
Genetic drift does not sufficiently explain patterns of electric signal variation among populations of the mormyrid electric fishParamormyrops kingsleyae
Authors: Picq Sophie , Sperling Joshua , Cheng Catherine J. , Carlson Bruce A. , Gallant Jason R. 
Published: June 2017

AbstractThe mormyrid fish speciesParamormyrops kingsleyaeemits an electric organ discharge (EOD) with a dual role in communication and electrolocation. Populations ofP. kingsleyaehave either biphasic or triphasic EODs, a feature which characterizes interspecific signal diversity among theParamormyropsgenus. We quantified variation in EODs of 327P. kingsleyaefrom 9 populations throughout Gabon and compared it to genetic variation estimated from 5 neutral microsatellite loci. We found no correlation between electric signal and genetic distances, suggesting that EOD divergence between populations ofP. kingsleyaecannot be explained by drift alone. An alternative hypothesis is that EOD differences are a cue for assortative mating, which would requireP. kingsleyaebe capable of differentiating between divergent EOD waveforms. Using a habituation-dishabituation assay, we found thatP. kingsleyaecan discriminate between triphasic and biphasic EOD types. Nonetheless, patterns of genetic and electric organ morphology divergence provide evidence for hybridization between signal types. Although reproductive isolation with respect to signal type is not absolute, our results suggest that EOD variation inP. kingsleayehas the potential to serve as a cue for assortative mating and point to selective forces rather than drift as important drivers of signal evolution.