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Lymphatic circulation

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https://www.readbyqxmd.com/read/29149303/changes-in-cytokine-filarial-antigen-and-dna-levels-associated-with-adverse-events-following-treatment-of-lymphatic-filariasis
#1
Britt J Andersen, Jessica Kumar, Kurt Curtis, Nelly Sanuku, Samson Satofan, Christopher L King, Peter U Fischer, Gary J Weil
Background: Mild to moderate adverse events (AEs) are common after treatment of lymphatic filariasis (LF) and pose a major challenge for the global LF elimination program. We studied changes in cytokine levels and filarial worm components in plasma of subjects with and without AEs following treatment of LF. Methods: Participants (N=24) were hospitalized and monitored for AEs following treatment. Cytokines (27), filarial DNA, circulating filarial antigen (CFA), and immune complexes were measured in plasma samples collected before and after treatment...
November 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29135573/evidence-of-inflammasome-activation-and-formation-of-monocyte-derived-apoptosis-associated-speck-like-protein-containing-a-caspase-recruitment-domain-specks-in-hiv-1-positive-patients
#2
Fareed Ahmad, Neha Mishra, Gerrit Ahrenstorf, Bernardo S Franklin, Eicke Latz, Reinhold E Schmidt, Lukas Bossaller
OBJECTIVE: The formation of large intracellular protein aggregates of the inflammasome adaptor apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC) (PYCARD) is a hallmark of inflammasome activation. ASC speck-forming cells release the highly proinflammatory cytokine IL-1β in addition to ASC specks into the extracellular space during pyroptotic cell death. There ASC specks can propagate inflammation to other nonactivated cells or tissues. HIV-1 retroviral infection triggers inflammasome activation of abortively infected CD4 T cells in secondary lymphatic tissues...
November 10, 2017: AIDS
https://www.readbyqxmd.com/read/29133120/enhanced-oral-absorption-and-anticancer-efficacy-of-cabazitaxel-by-overcoming-intestinal-mucus-and-epithelium-barriers-using-surface-polyethylene-oxide-peo-decorated-positively-charged-polymer-lipid-hybrid-nanoparticles
#3
Tianyang Ren, Qian Wang, Ying Xu, Lin Cong, Jingxin Gou, Xiaoguang Tao, Yu Zhang, Haibing He, Tian Yin, Haotian Zhang, Yan Zhang, Xing Tang
Polymer-lipid hybrid nanoparticles, PMONPs, were developed to improve the oral absorption of cabazitaxel (CTX), a semi-synthetic taxane derivative, by overcoming multiple gastrointestinal barriers. The nano-carrier is comprised of a poly(ε-caprolactone) (PCL) and chain triglyceride (MCT) hybrid core for drug loading, and a positively charged surface while slightly concealed with a polyethylene oxide (PEO) shell by insertion of poloxamer 188, with the aim of improving the intestinal mucus permeation and epithelial cell uptake...
November 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29119295/treatment-of-hip-fracture-of-pope-innocent-xii-by-marcello-malpighi-with-bed-rest
#4
REVIEW
Marco Bigoni, Giovanni Zatti, Nicolò Zanchi, Filippo Maria Anghilieri, Michele A Riva
Marcello Malpighi (1628-1694), who is referred to as the father of microscopical anatomy, histology, physiology and embryology was an Italian biologist and physician, well known for his discoveries on microscopical anatomy of kidney, circulating and lymphatic systems. As well as being a brilliant anatomist, Malpighi was also a valued physician so far as to became the personal physician of Pope Innocent XII (1615-1700). On 23 August 1691, one month after his election, the Pope fell to the ground hitting his left hip...
November 8, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29117787/reprogramming-of-adult-peripheral-blood-cells-into-human-induced-pluripotent-stem-cells-as-a-safe-and-accessible-source-of-endothelial-cells
#5
Pavel Simara, Lenka Tesarova, Daniela Rehakova, Simon Farkas, Barbara Salingova, Katerina Kutalkova, Eva Vavreckova, Pavel Matula, Petr Matula, Lenka Veverkova, Irena Koutna
New approaches in regenerative medicine and vasculogenesis have generated a demand for sufficient numbers of human endothelial cells (ECs). ECs and their progenitors (EPCs) reside on the interior surface of blood and lymphatic vessels or circulate in peripheral blood; however, their numbers are limited and they are difficult to expand after isolation. Recent advances in human induced pluripotent stem cell (hiPSC) research have opened possible avenues to generate unlimited numbers of ECs from easily accessible cell sources, such as the peripheral blood...
November 8, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29116890/a-test-and-not-treat-strategy-for-onchocerciasis-in-loa-loa-endemic-areas
#6
Joseph Kamgno, Sébastien D Pion, Cédric B Chesnais, Matthew H Bakalar, Michael V D'Ambrosio, Charles D Mackenzie, Hugues C Nana-Djeunga, Raceline Gounoue-Kamkumo, Guy-Roger Njitchouang, Philippe Nwane, Jules B Tchatchueng-Mbouga, Samuel Wanji, Wilma A Stolk, Daniel A Fletcher, Amy D Klion, Thomas B Nutman, Michel Boussinesq
Background Implementation of an ivermectin-based community treatment strategy for the elimination of onchocerciasis or lymphatic filariasis has been delayed in Central Africa because of the occurrence of serious adverse events, including death, in persons with high levels of circulating Loa loa microfilariae. The LoaScope, a field-friendly diagnostic tool to quantify L. loa microfilariae in peripheral blood, enables rapid, point-of-care identification of persons at risk for serious adverse events. Methods A test-and-not-treat strategy was used in the approach to ivermectin treatment in the Okola health district in Cameroon, where the distribution of ivermectin was halted in 1999 after the occurrence of fatal events related to L...
November 8, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29110772/the-cerebrospinal-fluid-and-barriers-anatomic-and-physiologic-considerations
#7
Hayrettin Tumani, André Huss, Franziska Bachhuber
The cerebrospinal fluid (CSF) space consists of the intracerebral ventricles, subarachnoid spaces of the spine and brain (e.g., cisterns and sulci), and the central spinal cord canal. The CSF protects the central nervous system (CNS) in different ways involving metabolic homeostasis, supply of nutrients, functioning as lymphatic system, and regulation of intracranial pressure. CSF is produced by the choroid plexus, brain interstitium, and meninges, and it circulates in a craniocaudal direction from ventricles to spinal subarachnoid space from where it is removed via craniocaudal lymphatic routes and the venous system...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29035450/imbalance-between-matrix-metalloproteinases-and-tissue-inhibitors-of-metalloproteinases-promotes-invasion-and-metastasis-of-head-and-neck-squamous-cell-carcinoma
#8
Adina E Stanciu, Adina Zamfir-Chiru-Anton, Marcel M Stanciu, Cristian R Popescu, Dan C Gheorghe
BACKGROUND: The balance between collagenolysis and its inhibition is critical during extracellular matrix remodeling in head and neck squamous cell carcinoma (HNSCC). An imbalance between matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) plays a critical role in the development of tumor cell invasion and metastasis. The purpose of the study was to determine MMP-9/TIMP-1 and MMP-2/TIMP-2 ratios in the sera of patients with HNSCC in relation to clinicopathological parameters...
October 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29020042/is-mass-drug-administration-against-lymphatic-filariasis-required-in-urban-settings-the-experience-in-kano-nigeria
#9
Dung D Pam, Dziedzom K de Souza, Susan D'Souza, Millicent Opoku, Safiya Sanda, Ibrahim Nazaradden, Ifeoma N Anagbogu, Chukwu Okoronkwo, Emmanuel Davies, Elisabeth Elhassan, David H Molyneux, Moses J Bockarie, Benjamin G Koudou
BACKGROUND: The Global Programme to Eliminate Lymphatic Filariasis (GPELF), launched in 2000, has the target of eliminating the disease as a public health problem by the year 2020. The strategy adopted is mass drug administration (MDA) to all eligible individuals in endemic communities and the implementation of measures to reduce the morbidity of those suffering from chronic disease. Success has been recorded in many rural endemic communities in which elimination efforts have centered...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28986250/a-serum-exosomal-microrna-panel-as-a-potential-biomarker-test-for-gastric-cancer
#10
Ning Wang, Lina Wang, Yongjun Yang, Li Gong, Bin Xiao, Xin Liu
The findings from several studies have suggested that circulating miRNAs are imbalanced with the genesis of gastric cancer (GC). Both normal and cancer cells can generate and secrete exosomes, which are nanosized membrane vesicles that can transport microRNAs and proteins. Emerging evidence indicates that the exosomes secreted by cancer cells can be released into the circulatory system. In this study, we investigated whether circulating exosomal miRNAs can be used to discriminate individuals with GC from healthy controls (NCs)...
November 25, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28935258/rifampicin-lipid-polymer-hybrid-nanoparticles-lipomer-for-enhanced-peyer-s-patch-uptake
#11
Sagar S Bachhav, Vikas D Dighe, Darsheen Kotak, Padma V Devarajan
The oral uptake of intact nanocarriers through Peyer's patches is an important uptake pathway. We report Rifampicin Lipid-Polymer hybrid nanoparticles (RIF-LIPOMER) using glyceryl monostearate as lipid and the mucoadhesive polymer, Gantrez, with the objective of balancing hydrophobicity and mucoadhesion for enhanced Peyer's patch uptake. RIF-LIPOMER was optimized for size, hydrophobicity, and mucoadhesion using Box-Behnken. Designed RIF-LIPOMER (RIF-LIPO-120) exhibited average particle size in the range 300-400nm with drug loading >12%...
September 19, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28928901/systematic-correlation-analyses-of-circulating-tumor-cells-with-clinical-variables-and-tumor-markers-in-lung-cancer-patients
#12
Xu Wang, Kewei Ma, Zhiguang Yang, Jiuwei Cui, Hua He, Andrew R Hoffman, Ji-Fan Hu, Wei Li
Measurement of circulating tumor cells (CTC) offers promise as a clinical biomarker to monitor disease status, therapeutic response, and progression in cancer patients. However, its clinical value in lung cancer patients has not been fully explored. We systematically evaluate the association of CTCs with clinical variables and tumor markers in a cohort of lung cancer patients. Using the CELLSEARCH System, CTCs were detected in both small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC) patients prior to therapy...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28901223/the-lymphatic-system-the-achilles-heel-of-the-fontan-kreutzer-circulation
#13
REVIEW
Christian Kreutzer, Guillermo Kreutzer
In spite of excellent long term survival the Fontan Kreutzer procedure commonly presents late failure due to end-organ damage. Several advances have been described to refine single ventricle management and surgical techniques. However, very little research has been dedicated to the lymphatic circulation in the precarious Fontan hemodynamic state. The lymphatic circulation is clearly affected since there is increased lymph production, which requires to be drained at a similar or higher pressure than it is produced, commonly resulting in chronic lymphedema...
September 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28892473/a-multi-center-field-study-of-two-point-of-care-tests-for-circulating-wuchereria-bancrofti-antigenemia-in-africa
#14
MULTICENTER STUDY
Cédric B Chesnais, Naomi-Pitchouna Awaca-Uvon, Fatoma K Bolay, Michel Boussinesq, Peter U Fischer, Lincoln Gankpala, Aboulaye Meite, François Missamou, Sébastien D Pion, Gary J Weil
BACKGROUND: The Global Programme to Eliminate Lymphatic Filariasis uses point-of-care tests for circulating filarial antigenemia (CFA) to map endemic areas and for monitoring and evaluating the success of mass drug administration (MDA) programs. We compared the performance of the reference BinaxNOW Filariasis card test (ICT, introduced in 1997) with the Alere Filariasis Test Strip (FTS, introduced in 2013) in 5 endemic study sites in Africa. METHODOLOGY: The tests were compared prior to MDA in two study sites (Congo and Côte d'Ivoire) and in three sites that had received MDA (DRC and 2 sites in Liberia)...
September 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28869696/comparison-and-functional-characterisation-of-peripheral-blood-mononuclear-cells-isolated-from-filarial-lymphoedema-and-endemic-normals-of-a-south-indian-population
#15
COMPARATIVE STUDY
Abel Arul Nathan, Madhulika Dixit, Subash Babu, Anand Setty Balakrishnan
OBJECTIVE: The underlying problem in lymphatic filariasis is irreversible swelling of the limbs (lymphoedema), which is a unique feature of lymphatic insufficiency. It is still unclear whether the natural ability of lymphatics to form functional lymphatic vasculature is achieved or attenuated in the lymphoedemal pathology. Clinical studies have clearly shown that circulating lymphatic progenitors (CLPs), a subset of bone marrow-derived mononuclear cells (PBMCs), contribute to post-natal lymph vasculogenesis...
November 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28863142/assessing-the-accuracy-of-blood-rna-profiles-to-identify-patients-with-post-concussion-syndrome-a-pilot-study-in-a-military-patient-population
#16
Jimmaline J Hardy, Scott R Mooney, Andrea N Pearson, Dawn McGuire, Daniel J Correa, Roger P Simon, Robert Meller
Mild traumatic brain injury (mTBI) is a complex, neurophysiological condition that can have detrimental outcomes. Yet, to date, no objective method of diagnosis exists. Physical damage to the blood-brain-barrier and normal waste clearance via the lymphatic system may enable the detection of biomarkers of mTBI in peripheral circulation. Here we evaluate the accuracy of whole transcriptome analysis of blood to predict the clinical diagnosis of post-concussion syndrome (PCS) in a military cohort. Sixty patients with clinically diagnosed chronic concussion and controls (no history of concussion) were recruited (retrospective study design)...
2017: PloS One
https://www.readbyqxmd.com/read/28851707/smooth-muscle-cell-recruitment-to-lymphatic-vessels-requires-pdgfb-and-impacts-vessel-size-but-not-identity
#17
Yixin Wang, Yi Jin, Maarja Andaloussi Mäe, Yang Zhang, Henrik Ortsäter, Christer Betsholtz, Taija Mäkinen, Lars Jakobsson
Tissue fluid drains through blind-ended lymphatic capillaries, via smooth muscle cell (SMC)-covered collecting vessels into venous circulation. Both defective SMC recruitment to collecting vessels and ectopic recruitment to lymphatic capillaries are thought to contribute to vessel failure, leading to lymphedema. However, mechanisms controlling lymphatic SMC recruitment and its role in vessel maturation are unknown. Here, we demonstrate that platelet-derived growth factor B (PDGFB) regulates lymphatic SMC recruitment in multiple vascular beds...
October 1, 2017: Development
https://www.readbyqxmd.com/read/28846190/therapeutic-effect-of-cisplatin-given-with-a-lymphatic-drug-delivery-system-on-false-negative-metastatic-lymph-nodes
#18
Asuka Tada, Sachiko Horie, Shiro Mori, Tetsuya Kodama
Systemic administration of drugs into the blood circulation is standard treatment for prevention of metastasis. However, systemic delivery cannot maintain sufficiently high concentrations of anticancer drugs in lymph nodes (LN). Here, we show that giving cisplatin (CDDP) using a lymphatic drug delivery system (LDDS) has the potential to treat false-negative metastatic LN. We found that in MXH10/Mo-lpr/lpr mice, which develop systemic swelling of LN up to 10 mm in diameter, accumulation of indocyanine green (ICG), which has a similar molecular weight to CDDP, in a target LN was greater for lymphatic delivery of ICG than for systemic (i...
November 2017: Cancer Science
https://www.readbyqxmd.com/read/28833533/the-thoracic-duct-and-the-fontan-patient
#19
Cassandra Sung, John L Bass, James M Berry, Charles W Shepard, Bruce Lindgren, Lazaros K Kochilas
BACKGROUND: Ultrasound imaging of adults with heart failure and increased central venous pressure (CVP) has shown significant thoracic duct (TD) dilation from impedance in lymphatic drainage. Elevated CVP and abnormal lymphatic drainage are implicated in severe Fontan complications, including protein losing enteropathy (PLE) and plastic bronchitis (PB). Systematic studies of TD and lymphatic circulation in children are limited, and their cervical TD normative values have not been established...
September 2017: Echocardiography
https://www.readbyqxmd.com/read/28820467/aquaporin-4-functionality-and-virchow-robin-space-water-dynamics-physiological-model-for-neurovascular-coupling-and-glymphatic-flow
#20
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
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