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https://www.readbyqxmd.com/read/28820467/aquaporin-4-functionality-and-virchow-robin-space-water-dynamics-physiological-model-for-neurovascular-coupling-and-glymphatic-flow
#1
REVIEW
Tsutomu Nakada, Ingrid L Kwee, Hironaka Igarashi, Yuji Suzuki
The unique properties of brain capillary endothelium, critical in maintaining the blood-brain barrier (BBB) and restricting water permeability across the BBB, have important consequences on fluid hydrodynamics inside the BBB hereto inadequately recognized. Recent studies indicate that the mechanisms underlying brain water dynamics are distinct from systemic tissue water dynamics. Hydrostatic pressure created by the systolic force of the heart, essential for interstitial circulation and lymphatic flow in systemic circulation, is effectively impeded from propagating into the interstitial fluid inside the BBB by the tightly sealed endothelium of brain capillaries...
August 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28818521/current-approach-of-the-axilla-in-patients-with-early-stage-breast-cancer
#2
REVIEW
Eleftherios P Mamounas, Thorsten Kuehn, Emiel J T Rutgers, Gunter von Minckwitz
The surgical approach of the axilla in patients with early-stage breast cancer has witnessed considerable evolution during the past 25 years. The previously undisputed gold standard of axillary-lymph-node dissection for staging has now been replaced by sentinel-lymph-node biopsy for patients with clinically negative axilla. For selected patients with limited sentinel-lymph-node involvement, completion axillary-lymph-node dissection can be omitted or replaced by axillary radiotherapy, reducing morbidity. The clinical interest of axillary staging after neoadjuvant chemotherapy is increasing and this approach might contribute to morbidity reduction, and to the further tailoring of future systemic and locoregional treatment decisions by response assessment...
August 14, 2017: Lancet
https://www.readbyqxmd.com/read/28815068/pattern-of-lymph-node-metastases-of-squamous-cell-esophageal-cancer-based-on-the-anatomical-lymphatic-drainage-system-efficacy-of-lymph-node-dissection-according-to-tumor-location
#3
REVIEW
Yuji Tachimori
Knowing the anatomical lymphatic drainage of the esophagus is crucial to understanding the dissemination pattern of esophageal tumor. During the embryonal growth, the middle and lower part of the esophagus stretches as the lymphatic networks develop in the submucosal layer. The abundant submucosal lymphatics drain in a longitudinal fashion directly to their proximal and distal ends. The lymphatic route from the proximal esophagus through recurrent nerve nodes to supraclavicular nodes are a component of the mesentery of the proximal esophagus...
July 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28814672/vipar-a-quantitative-approach-to-3d-histopathology-applied-to-lymphatic-malformations
#4
René Hägerling, Dominik Drees, Aaron Scherzinger, Cathrin Dierkes, Silvia Martin-Almedina, Stefan Butz, Kristiana Gordon, Michael Schäfers, Klaus Hinrichs, Pia Ostergaard, Dietmar Vestweber, Tobias Goerge, Sahar Mansour, Xiaoyi Jiang, Peter S Mortimer, Friedemann Kiefer
BACKGROUND: Lack of investigatory and diagnostic tools has been a major contributing factor to the failure to mechanistically understand lymphedema and other lymphatic disorders in order to develop effective drug and surgical therapies. One difficulty has been understanding the true changes in lymph vessel pathology from standard 2D tissue sections. METHODS: VIPAR (volume information-based histopathological analysis by 3D reconstruction and data extraction), a light-sheet microscopy-based approach for the analysis of tissue biopsies, is based on digital reconstruction and visualization of microscopic image stacks...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28809049/evolution-of-mnc-and-lymphocyte-collection-settings-employing-different-spectra-optia-%C3%A2-leukapheresis-systems
#5
M Punzel, A Kozlova, A Quade, A H Schmidt, R Smith
BACKGROUND AND OBJECTIVES: The Spectra Optia(®) continuous mononuclear cell (CMNC apheresis) system has emerged as the preferred device in peripheral blood stem cell collections over the original two-step Spectra Optia(®) mononuclear cell (MNC apheresis) system. Until now, no comparative data were available for non-stimulated MNC collections that are required for immunotherapy. MATERIALS AND METHODS: We compared collection parameters and product composition for Spectra Optia MNC- as well as CMNC-apheresis systems in non-stimulated MNC collections from 35 registry donors intended for donor lymphocyte infusions...
August 14, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28805676/inhibitors-of-deubiquitinating-enzymes-block-hiv-1-replication-and-augment-the-presentation-of-gag-derived-mhc-i-epitopes
#6
Christian Setz, Melanie Friedrich, Pia Rauch, Kirsten Fraedrich, Alina Matthaei, Maximilian Traxdorf, Ulrich Schubert
In recent years it has been well established that two major constituent parts of the ubiquitin proteasome system (UPS)-the proteasome holoenzymes and a number of ubiquitin ligases-play a crucial role, not only in virus replication but also in the regulation of the immunogenicity of human immunodeficiency virus type 1 (HIV-1). However, the role in HIV-1 replication of the third major component, the deubiquitinating enzymes (DUBs), has remained largely unknown. In this study, we show that the DUB-inhibitors (DIs) P22077 and PR-619, specific for the DUBs USP7 and USP47, impair Gag processing and thereby reduce the infectivity of released virions without affecting viral protease activity...
August 12, 2017: Viruses
https://www.readbyqxmd.com/read/28802090/assessment-of-the-dynamics-of-human-glymphatic-system-by-near-infrared-spectroscopy-nirs
#7
Teemu Myllylä, Markus Harju, Vesa Korhonen, Alexander Bykov, Vesa Kiviniemi, Igor Meglinski
Fluctuations in brain water content has attracted increasing interest, particularly as regards studies of the glymphatic system, which is connected with the complex organisation of dural lymphatic vessels, responsible for cleaning tissue. Disturbances of glymphatic circulation are associated with several brain disorders, including dementia. This paper introduces an approach to non-invasive measurement of water dynamics in the human brain utilizing near-infrared spectroscopy (NIRS). We demonstrate the possibility to sense dynamic variations of water content between the skull and grey matter, for instance, in the subarachnoid space...
August 12, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28801027/lymph-node-dissection-should-not-be-dismissed-in-case-of-localized-renal-cell-carcinoma-in-the-presence-of-larger-diseases
#8
Paolo Dell'Oglio, Alessandro Larcher, Fabio Muttin, Ettore Di Trapani, Francesco Trevisani, Francesco Ripa, Cristina Carenzi, Alberto Briganti, Andrea Salonia, Francesco Montorsi, Roberto Bertini, Umberto Capitanio
OBJECTIVE: To assess whether even in the group of localized renal cell carcinoma (RCC), some patients might harbor a disease with a predilection for lymph node invasion (LNI) and/or lymph node (LN) progression and might deserve lymph node dissection (LND) at the time of surgery. MATERIALS AND METHODS: Between 1990 and 2014, 2,010 patients with clinically defined T1-T2N0M0 RCC were treated with nephrectomy and standardized LND at a single tertiary care referral center...
August 8, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28795517/cardiovascular-adaptation-to-the-fontan-circulation
#9
REVIEW
Gruschen R Veldtman, Alexander R Opotowsky, Samuel G Wittekind, Jack Rychik, Daniel J Penny, Mark Fogel, Bradley S Marino, Marc Gewillig
Although medium-term survival following Fontan operations in the modern era has improved dramatically, late cardiovascular and extracardiac morbidity are common and are associated with impaired quality of life and premature late mortality. This serves as a reminder of the extraordinary adaptations required of the cardiovascular system when the systemic arterial, systemic venous and pulmonary circulations are placed in series coupled to a single ventricular pump. This article reviews the key features and principles that govern interactions between the ventricle, systemic arterial circulation, the systemic venous and pulmonary circulatory compartments, the microcirculation, and lymphatic circulations...
August 10, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28795242/prox1-gfp-flt1-dsred-transgenic-mice-an-animal-model-for-simultaneous-live-imaging-of-angiogenesis-and-lymphangiogenesis
#10
Wei Zhong, Xinbo Gao, Shuangyong Wang, Kyuyeon Han, Masatsugu Ema, Susanne Adams, Ralf H Adams, Mark I Rosenblatt, Jin-Hong Chang, Dimitri T Azar
The roles of angiogenesis in development, health, and disease have been studied extensively; however, the studies related to lymphatic system are limited due to the difficulty in observing colorless lymphatic vessels. But recently, with the improved technique, the relative importance of the lymphatic system is just being revealed. We bred transgenic mice in which lymphatic endothelial cells express GFP (Prox1-GFP) with mice in which vascular endothelial cells express DsRed (Flt1-DsRed) to generate Prox1-GFP/Flt1-DsRed (PGFD) mice...
August 9, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28790839/isolated-thoracic-perfusion-with-chemofiltration-for-progressive-malignant-pleural-mesothelioma
#11
Karl Reinhard Aigner, Emir Selak, Sabine Gailhofer
INTRODUCTION: Therapy of malignant pleural mesothelioma and especially the adequate role of surgery in this context remain the subject of controversial discussions. Radical surgery in particular, which is associated with substantial morbidity, failed to translate into a definite survival advantage. We report on interim results of an ongoing Phase II study of regional chemotherapy in terms of isolated thoracic perfusion with chemofiltration (ITP-F). PATIENTS AND METHODS: Twenty-eight patients (25 male, 3 female, mean age 63...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28782893/prognostic-value-of-the-immunohistochemical-detection-of-cancer-associated-fibroblasts-in-oral-cancer-a-systematic-review-and-meta-analysis
#12
REVIEW
Mauricio Rocha Dourado, Eliete N S Guerra, Tuula Salo, Daniel W Lambert, Ricardo D Coletta
AIM: To perform a meta-analysis to assess whether the presence of cancer-associated fibroblasts (CAF) is a prognostic marker of oral squamous cell carcinomas (OSCC). METHODS: Immunohistochemical studies assessing the prognostic relevance of CAF (alpha smooth muscle actin (α-SMA)-positive fibroblasts) in patients with OSCC were systematically reviewed using Cochrane, Lilacs, PubMed, Scopus and Web of Science databases. The outcomes assessed were overall survival (OS) and disease-free survival (DFS)...
August 7, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28782106/sirolimus-as-treatment-for-19-patients-with-refractory-cervicofacial-lymphatic-malformation
#13
Julie E Strychowsky, Reza Rahbar, Meghan J O'Hare, Alexandria L Irace, Horacio Padua, Cameron C Trenor
OBJECTIVE: Lymphatic malformations (LMs) are challenging to manage, particularly those involving the cervicofacial region and airway. Traditional therapy is sclerotherapy and/or resection. We aim to establish the emerging therapeutic role of sirolimus. STUDY DESIGN: Institutional review board-approved retrospective review. METHODS: All patients treated for cervicofacial LM with sirolimus at Boston Children's Hospital, Massachusetts, from November 2012 to October 2016 were included...
August 7, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28777538/microinjection-for-the-ex-vivo-modification-of-cells-with-artificial-organelles
#14
Peter Tiefenboeck, Jong Ah Kim, Ferdinand Trunk, Tamara Eicher, Erica Russo, Alvaro Teijeira, Cornelia Halin, Jean-Christophe Leroux
Microinjection is extensively used across fields to deliver material intracellularly. Here we address the fundamental aspects of introducing exogenous organelles into cells to endow them with artificial functions. Nanocarriers encapsulating biologically active cargo or extreme intraluminal pH were injected directly into the cytosol of cells, where they bypassed subcellular processing pathways and persisted intact for several days. Nanocarriers' size was found to dictate their intracellular distribution pattern upon injection, with larger vesicles adopting polarized agglomerated distributions and smaller colloids spreading evenly in the cytosol...
August 4, 2017: ACS Nano
https://www.readbyqxmd.com/read/28775077/chronic-rejection-of-cardiac-allografts-is-associated-with-increased-lymphatic-flow-and-cellular-trafficking
#15
Lindsey A Edwards, Anna K Nowocin, Nazila V Jafari, Lucy Meader, Kathryn Brown, Aurélien Sarde, Carolyn Lam, Alex Murray, Wilson Wong
Background -Cardiac transplantation is an excellent treatment for end-stage heart disease. However, rejection of the donor graft, particularly by chronic rejection leading to cardiac allograft vasculopathy, remains a major cause of graft loss. The lymphatic system plays a crucial role in the alloimmune response, facilitating trafficking of antigen presenting cells (APCs) to draining lymph nodes (dLN). The encounter of APCs with T lymphocytes in secondary lymphoid organs is essential for the initiation of alloimmunity...
August 3, 2017: Circulation
https://www.readbyqxmd.com/read/28769537/osteopontin-at-the-crossroads-of-inflammation-and-tumor-progression
#16
REVIEW
Luigi Mario Castello, Davide Raineri, Livia Salmi, Nausicaa Clemente, Rosanna Vaschetto, Marco Quaglia, Massimiliano Garzaro, Sergio Gentilli, Paolo Navalesi, Vincenzo Cantaluppi, Umberto Dianzani, Anna Aspesi, Annalisa Chiocchetti
Complex interactions between tumor and host cells regulate systemic tumor dissemination, a process that begins early at the primary tumor site and goes on until tumor cells detach themselves from the tumor mass and start migrating into the blood or lymphatic vessels. Metastatic cells colonize the target organs and are capable of surviving and growing at distant sites. In this context, osteopontin (OPN) appears to be a key determinant of the crosstalk between cancer cells and the host microenvironment, which in turn modulates immune evasion...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28762561/diet-induced-obesity-causes-visceral-but-not-subcutaneous-lymph-node-hyperplasia-via-increases-in-specific-immune-cell-populations
#17
A M Magnuson, D P Regan, J K Fouts, A D Booth, S W Dow, M T Foster
OBJECTIVES: The spatial proximity of adipose depots to secondary lymph nodes allows a unique relation between the two systems. Obesity, predominately visceral adiposity, links to numerous diseases; hence, we postulate that secondary lymphatics within this region contributes to disease risk. MATERIAL AND METHODS: Male C57BL/6 mice were fed standard CHOW (18% kcal fat) or Western diet (45% kcal fat) for 7 weeks. Visceral and subcutaneous lymph nodes and associated adipose depots they occupy were excised...
August 1, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28761367/protein-losing-enteropathy-comprehensive-review-of-the-mechanistic-association-with-clinical-and-subclinical-disease-states
#18
REVIEW
David G Levitt, Michael D Levitt
Protein losing enteropathy (PLE) has been associated with more than 60 different conditions, including nearly all gastrointestinal diseases (Crohn's disease, celiac, Whipple's, intestinal infections, and so on) and a large number of non-gut conditions (cardiac and liver disease, lupus, sarcoidosis, and so on). This review presents the first attempt to quantitatively understand the magnitude of the PLE in relation to the associated pathology for three different disease categories: 1) increased lymphatic pressure (e...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28759319/an-experimental-lymphedema-animal-model-for-assessing-the-results-of-lymphovenous-anastomosis
#19
Randolfo Fernández Peñuela, Gemma Pons Playa, Laura Casaní Arazo, Jaume Masiá Ayala
BACKGROUND: The lymphatic system is the least studied of the body's systems, and as a result its contribution to human health and diseases is not well known. The failure of the lymphatic system to drain extravasated fluid efficiently leads to accumulation of lymph in the interstitial tissue, thus causing lymphedema. Despite developments in microsurgery procedures, the results of lymphedema treatment remain disappointing. The aim of this study was to develop an experimental animal model that is able to reproduce the disease and to apply various surgical and therapeutic approaches...
July 31, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28753156/-adipose-derived-stem-cells-and-vascularized-lymph-node-transfers-successfully-treat-mouse-hindlimb-secondary-lymphedema-by-early-reconnection-of-the-lymphatic-system-and-lymphangiogenesis
#20
Chenglong Wang, Jie Luan, Minqiang Xin
No abstract text is available yet for this article.
July 15, 2017: Plastic and Reconstructive Surgery
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