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https://www.readbyqxmd.com/read/28207940/structural-and-functional-changes-to-lymph-nodes-in-ageing-mice
#1
Vivian M Turner, Neil A Mabbott
Lymph nodes (LN) are secondary lymphoid organs spread throughout the lymphatic system. They function to filter pathogenic material from the lymphatic fluid to maintain the health of the organism. Subcapsular sinus macrophages (SCSM) are amongst the first-responders within the LN due to their strategic location within the subcapsular sinus region. These macrophages aid the delivery of immune complexes to B cells and follicular dendritic cells (FDC) within the LN. Here we show an increase in SCSM and other macrophage populations within aged LN...
February 16, 2017: Immunology
https://www.readbyqxmd.com/read/28187746/slow-lung-clearance-and-limited-translocation-of-four-sizes-of-inhaled-iridium-nanoparticles
#2
Alison Buckley, James Warren, Alan Hodgson, Tim Marczylo, Konstantin Ignatyev, Chang Guo, Rachel Smith
BACKGROUND: Concerns have been expressed that inhaled nanoparticles may behave differently to larger particles in terms of lung clearance and translocation, with potential implications for their toxicity. Studies undertaken to investigate this have typically involved limited post-exposure periods. There is a shortage of information on longer-term clearance and translocation patterns and their dependence on particle size, which this study aimed to address. METHODS: Rats were exposed (<3 h) nose-only to aerosols of spark-generated radioactive iridium-192 nanoparticles of four sizes: 10 nm, 15 nm, 35 nm and 75 nm (count median diameter) (aerosol mass concentrations 17, 140, 430, and 690 μg/m(3), respectively)...
February 10, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28177373/a-strategy-to-improve-nitrogen-utilization-reduce-environmental-impact-and-increase-performance-and-antioxidant-capacity-of-fattening-lambs-using-pomegranate-peel-extract
#3
M Rajabi, Y Rouzbehan, J Rezaei
Dietary natural plant secondary metabolites (PSM) extracted from a pomegranate peel (PP) byproduct have the potential to improve milk yield and the milk fatty acid profile of dairy cows. This experiment was performed to assess the influence of different dietary levels of PP extract (PPE) on feedlot performance, ruminal status, nutrient utilization, and antioxidant status in fattening Moghani lambs. Thirty-two lambs (initial BW of 22 ± 1.2 kg) were used in a completely randomized design with a 72-d period and 4 treatments: PPE0 (no extract), PPE15 (15 mL PPE/kg of diet DM), PPE30 (30 mL PPE/kg of diet DM), and PPE45 (45 mL PPE/kg of diet DM)...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28156637/complications-of-intrathecal-pump-therapy-in-malignancy-related-pain
#4
Egidio Del Fabbro
: 102 Background: Intrathecal pumps (ITP) are used to manage severe malignancy related pain by delivering analgesics directly into the cerebrospinal fluid, in theory allowing for a reduced opioid dose and fewer complications. Although there is literature to support efficacy in patients with cancer, including improved survival, this mode of drug delivery also carries a risk of serious complications. Reports of complications in non-malignant pain suggest the risks and mortality related to ITP may be under-appreciated and that injury and liability occur with both ITP placement and ITP maintenance...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28154275/pancreatic-fistula-extending-into-the-thigh-caused-by-the-rupture-of-an-intraductal-papillary-mucinous-adenoma-of-the-pancreas
#5
Yuki Shimizu, Hiroshi Imaizumi, Hiroshi Yamauchi, Kosuke Okuwaki, Shiro Miyazawa, Tomohisa Iwai, Miyoko Takezawa, Mitsuhiro Kida, Erina Suzuki, Makoto Saegusa, Wasaburo Koizumi
We herein report the first case of a pancreatic fistula extending into the thigh caused by the rupture of an intraductal papillary mucinous neoplasm (IPMN) of the pancreas. An 80-year-old man was suspected to have necrotizing fasciitis because of right femoral pain. Computed tomography showed fluid retention from the pancreatic head to the right iliopsoas muscle and an IPMN at the pancreatic head. The findings of endoscopic retrograde pancreatography led to the suspicion of a minor leak and a pancreatic stent was placed...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28153467/water-balance-in-the-fetus-and-neonate
#6
REVIEW
Julie B Lindower
Fetal water balance is dependent prenatally on the placental transfer of water from maternal to fetal circulation. Adequate amniotic fluid volume is one indicator of stable fetal status and development. Excessive or less than expected amniotic fluid volume may be a precursor to postnatal morbidity and mortality. Postnatal transition is marked by predictable changes in body water including contraction of extracellular volume and insensible fluid loss, primarily across the skin barrier. The degree to which these occur is determined by gestational and postnatal age...
January 30, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28153282/utilizing-online-dual-spe-lc-with-hrms-for-the-simultaneous-quantification-of-amphotericin-b-fluconazole-and-fluorocytosine-in-human-plasma-and-cerebrospinal-fluid
#7
Lihua Qu, Jing Qian, Ping Ma, Zheng Yin
Amphotericin B (AMB), fluconazole (FZ), and fluorocytosine (FC) are recommended for HIV-associated cryptococcal meningitis (CM) patients as preferred antibiotics. This study presents a fast and automated online-dual-solid phase extraction (SPE)-LC coupled with high resolution mass spectrometer (HRMS) method to simultaneously measure the concentrations of AMB, FZ, and FC in human plasma and cerebrospinal fluid (CSF). Automated sample clean-up was performed on the human plasma and CSF samples with stop-flow heart-cutting two dimensional (2D) separation using a online-dual-SPE system, allowing retention and accumulation of AMB, FZ, and carbamazepine (CBZ, Internal standard (IS)) by the Oasis(®)HLB cartridge, and retention and accumulation of FC and 5-methylcytosine hydrochloride (MC, IS) by the HyperSep Hypercarb cartridge respectively...
April 1, 2017: Talanta
https://www.readbyqxmd.com/read/28150936/ph-responsive-zno-nanocluster-for-lung-cancer-chemotherapy
#8
Xiaoli Cai, Yanan Luo, Hongye Yan, Dan Du, Yuehe Lin
Here, we demonstrated a pH-responsive nanocluster based on ZnO quantum dots (QDs) and investigated its potential in drug delivery with tumor-specific accumulation. The nanoclusters were composed of small single ZnO QDs by cross-linking dicarboxyl-terminated poly(ethylene glycol) (PEG), showing high stability and biocompatibility in physiological fluid. The clustered ZnO QDs were capable of loading a large quantity of doxorubicin (DOX) via complexation and covalent interactions. After cellular uptake, the drug was efficiently released because the carrier was completely dissolved; the metal-drug complex was disassembled in response to decreasing pH in the endosomes within tumor cells...
February 2, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28150050/sudden-paraplegia-after-lumbar-puncture-as-a-clue-in-the-diagnosis-of-a-patient-with-spinal-dural-arteriovenous-fistula
#9
Carmen García-Cabo, Germán Morís
PURPOSE: Spinal dural arteriovenous fistula (SDAVF) is manifested as congestive myelopathy with progressive motor, sensory and urinary symptoms. Sometimes, clinical picture and magnetic resonance imaging of the spinal cord are not specific and the diagnosis becomes troublesome. METHODS: We present a 68-year-old male with a progressive paraparesis of unknown etiology over the course of 12 months. Immediately after LP, the patient remarked a sudden worsening in muscular balance of his inferior limbs and a worsening of urinary retention...
February 1, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28137533/traditional-chinese-medicine-zheng-identification-of-bronchial-asthma-clinical-investigation-of-2500-adult-cases
#10
Zhiwan Wang, Jiansheng Li, Yang Xie, Xueqing Yu, Zhaowang Zhang
OBJECTIVES: This study aims to employ more comprehensive approaches to analyze the primary and secondary symptoms of clinical common TCM ZHENG of bronchial asthma according to the clinical investigation of 2500 adult cases. METTHODS: Patients met the inclusion criteria were surveyed by associate chief physician or chief physician through the TCM Clinical investigation questionnaire containing general demographic information, signs and symptoms, tongue and pulse conditions...
February 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28130212/a-phase-ii-trial-of-pomalidomide-and-dexamethasone-rescue-treatment-in-patients-with-al-amyloidosis
#11
Giovanni Palladini, Paolo Milani, Andrea Foli, Marco Basset, Francesca Russo, Stefano Perlini, Giampaolo Merlini
Immunomodulatory drugs are active agents in AL amyloidosis. However, previous studies could not show a survival advantage for patients with AL amyloidosis responding to salvage treatment with pomalidomide. In this phase II trial, we assessed safety and efficacy of pomalidomide and dexamethasone in patients with AL amyloidosis previously exposed to bortezomib, alkylators, and other immunomodulatory drugs. Twenty-eight patients were enrolled. Three patients received pomalidomide 2 mg/day with no dose-limiting toxicity...
January 27, 2017: Blood
https://www.readbyqxmd.com/read/28120922/microencapsulation-with-alginate-caco3-a-strategy-for-improved-phage-therapy
#12
Joan Colom, Mary Cano-Sarabia, Jennifer Otero, Javier Aríñez-Soriano, Pilar Cortés, Daniel Maspoch, Montserrat Llagostera
Bacteriophages are promising therapeutic agents that can be applied to different stages of the commercial food chain. In this sense, bacteriophages can be orally administered to farm animals to protect them against intestinal pathogens. However, the low pH of the stomach, the activities of bile and intestinal tract enzymes limit the efficacy of the phages. This study demonstrates the utility of an alginate/CaCO3 encapsulation method suitable for bacteriophages with different morphologies and to yield encapsulation efficacies of ~100%...
January 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28114980/the-impact-of-torasemide-on-haemodynamic-and-neurohormonal-stress-and-cardiac-remodelling-in-heart-failure-tornado-a-study-protocol-for-a-randomized-controlled-trial
#13
Paweł Balsam, Krzysztof Ozierański, Agata Tymińska, Renata Główczyńska, Michał Peller, Anna Fojt, Andrzej Cacko, Bartosz Sieradzki, Elwira Bakuła, Maciej Markulis, Robert Kowalik, Zenon Huczek, Krzysztof J Filipiak, Grzegorz Opolski, Marcin Grabowski
BACKGROUND: Approximately 50% of heart failure patients are readmitted to hospital within 6 months, owing to deterioration of their condition. Thus, symptomatic treatment of heart failure requires significant improvement. The aim of this study is to compare the effects of torasemide and furosemide on biochemical parameters of haemodynamic and neurohormonal compensation, myocardial remodelling, clinical outcomes and quality of life in patients with chronic heart failure. METHODS: This is a multicentre, randomized, open, blinded endpoint phase-IV trial...
January 23, 2017: Trials
https://www.readbyqxmd.com/read/28114388/multicompartmental-pharmacokinetic-model-of-tenofovir-delivery-to-the-rectal-mucosa-by-an-enema
#14
Yajing Gao, David F Katz
Rectal enemas that contain prophylactic levels of anti-HIV microbicides such as tenofovir have emerged as a promising dosage form to prevent sexually transmitted HIV infections. The enema vehicle is promising due to its likely ability to deliver a large amount of drug along the length of the rectal canal. Computational models of microbicide drug delivery by enemas can help their design process by determining key factors governing drug transport and, more specifically, the time history and degree of protection...
2017: PloS One
https://www.readbyqxmd.com/read/28109773/exploring-polyvinylpyrrolidone-in-the-engineering-of-large-porous-plga-microparticles-via-single-emulsion-method-with-tunable-sustained-release-in-the-lung-in-vitro-and-in-vivo-characterization
#15
Rui Ni, Uwe Muenster, Jing Zhao, Lan Zhang, Eva-Maria Becker-Pelster, Martin Rosenbruch, Shirui Mao
Sustained pulmonary drug delivery is regarded as an effective strategy for local treatment of chronic lung diseases. Despite of the progress made so far, there remains a need for respirable drug loaded porous microparticles, where porosity of the microparticles can be readily engineered during the preparation process, with tunable sustained drug release upon lung deposition. In this work, polyvinyl pyrrolidone (PVP) was used as a novel porogen to engineer PLGA-based large porous particles (LPPs) using single emulsion method, with fine tuning of the porosity, sustained drug release both in vitro and in vivo...
January 18, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28106344/fast-separation-of-flavonoids-by-supercritical-fluid-chromatography-using-a-column-packed-with-a-sub-2%C3%A2-%C3%AE-m-particle-stationary-phase
#16
Bo Wang, Xiao-Hua Liu, Wei Zhou, Yan Hong, Shi-Lan Feng
The purpose of this study was to compare the effects of different chromatographic columns for the separation of seven flavonoids. Four different stationary phases are available, including bridged ethyl hybrid, BEH and the same hybrid phase modified with 2-ethylpyridine, CSH fluorophenyl, and HSS C18 SB. The analytes included calycosin, genistein, medicarpin, calycosin-7-O-β-d-glucoside, formononetin, formononetin-7-O-β-d-glucoside, and liquiritigenin. The CSH fluorophenyl column was determined to be the most suitable and provided the fastest separation within 17 min using gradient elution with carbon dioxide as the mobile phase and methanol as the co-solvent...
January 20, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28104353/fluid-energy-and-nutrient-recovery-via-ad-libitum-intake-of-different-fluids-and-food
#17
Nadia Campagnolo, Elizaveta Iudakhina, Christopher Irwin, Matthew Schubert, Gregory R Cox, Michael Leveritt, Ben Desbrow
INTRODUCTION: This study compared the effects of ad libitum consumption of different beverages and foods on fluid retention and nutrient intake following exercise. METHODS: Ten endurance trained males (mean±SD; Age=25.3±4.9years, VO2max=63.0±7.2mL·kg·min(-1)) performed four trials employing a counterbalanced, crossover design. Following 60min of exercise (matched for energy expenditure and fluid loss) participants consumed either water (W1 and W2), a sports drink (Powerade® (P)) or a milk-based liquid meal supplement (Sustagen Sport® (SS)) over a four hour recovery period...
January 16, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28103660/-two-cases-of-urinary-retention-with-prostatic-abscess-drained-by-transurethral-resection
#18
Yoshinori Matsuda, Takamitsu Inoue, Shuji Chiba, Takehiro Suzuki, Tomonori Habuchi
A 58-year-old male with alcoholic liver cirrhosis and a 58-year-old male with diabetes mellitus presented with high fever and urinary retention. Prostatic abscess was diagnosed by a computed tomography scan, which showed fluid collection in the prostate in both patients. Despite systematic antibiotic therapies, urinary retention persisted even after fever diminished. They underwent prostatic abscess drainage by transurethral resection (TUR). Urinary retention was released, and the recurrence of prostatic abscess has not been observed after TUR...
December 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28103284/gene-expression-profiling-of-bronchoalveolar-lavage-cells-preceding-a-clinical-diagnosis-of-chronic-lung-allograft-dysfunction
#19
S Samuel Weigt, Xiaoyan Wang, Vyacheslav Palchevskiy, Aric L Gregson, Naman Patel, Ariss DerHovanessian, Michael Y Shino, David M Sayah, Shirin Birjandi, Joseph P Lynch, Rajan Saggar, Abbas Ardehali, David J Ross, Scott M Palmer, David Elashoff, John A Belperio
BACKGROUND: Chronic Lung Allograft Dysfunction (CLAD) is the main limitation to long-term survival after lung transplantation. Although CLAD is usually not responsive to treatment, earlier identification may improve treatment prospects. METHODS: In a nested case control study, 1-year post transplant surveillance bronchoalveolar lavage (BAL) fluid samples were obtained from incipient CLAD (n = 9) and CLAD free (n = 8) lung transplant recipients. Incipient CLAD cases were diagnosed with CLAD within 2 years, while controls were free from CLAD for at least 4 years following bronchoscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28103046/food-protein-based-core-shell-nanocarriers-for-oral-drug-delivery-effect-of-shell-composition-on-in-vitro-and-in-vivo-functional-performance-of-zein-nanocarriers
#20
Mohammed S Alqahtani, M Saiful Islam, Satheesh Podaralla, Radhey S Kaushik, Joshua Reineke, Tofuko Woyengo, Omathanu Perumal
The study was aimed at systematically investigating the influence of shell composition on the particle size, stability, release, cell uptake, permeability, and in vivo gastrointestinal distribution of food protein based nanocarriers for oral delivery applications. Three different core-shell nanocarriers were prepared using food-grade biopolymers including zein-casein (ZC) nanoparticles, zein-lactoferrin (ZLF), nanoparticles and zein-PEG (ZPEG) micelles. Nile red was used as a model hydrophobic dye for in vitro studies...
February 7, 2017: Molecular Pharmaceutics
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