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https://www.readbyqxmd.com/read/28732440/intravenous-injection-of-myelin-oligodendrocyte-glycoprotein-coated-plga-microparticles-have-tolerogenic-effects-in-experimental-autoimmune-encephalomyelitis
#1
Mehrdad Gholamzad, Masoumeh Ebtekar, Mehdi Shafiee Ardestani
The abnormal function of the T lymphocytes causes a range of autoimmune diseases, particularly multiple sclerosis; hence, several methods have been used to treat these disorders through the induction of antigen-specific tolerance in T cells. The present study aims to use a simple and low-cost method to produce poly (lactic-co-glycolic acid) (PLGA) nanoparticles for carrying antigens and inducing antigen-specific tolerance. In this study, PLGA nanoparticles were produced using the water/oil/water (W/O/W) method...
June 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28732031/breast-tissue-ablation-with-irreversible-electroporation-in-rabbits-a-safety-and-feasibility-study
#2
Wenlong Zhang, Wanning Wang, Wei Chai, Xiaomei Luo, Jiannan Li, Jian Shi, Liqi Bi, Lizhi Niu
BACKGROUND AND AIM: Irreversible electroporation (IRE) was confirmed to control several solid tumors effectively in vivo. Our preclinical study aimed to assess the feasibility and safety of IRE in the breast of rabbit. METHODS: Thirty New Zealand white rabbits were randomly divided into 3 groups of 10 rabbits (control group, IRE group A, and B). Two mono-electrode needles were inserted into the breast tissue by percutaneous puncture. Electrocardiogram and vital signs were monitored before, during, and after ablation...
2017: PloS One
https://www.readbyqxmd.com/read/28731677/an-evaluation-of-optimal-pegylation-strategies-for-maximizing-the-lymphatic-exposure-and-antiviral-activity-of-interferon-after-subcutaneous-administration
#3
Linda J Chan, Orlagh M Feeney, Nathania J Leong, Victoria M Mcleod, Christopher J H Porter, Charlotte C Williams, Lisa M Kaminskas
Interferon α2 is an antiviral/antiproliferative protein that is currently used to treat hepatitis C infections and several forms of cancer. Two PEGylated variants of interferon α2 (containing 12 and 40 kDa PEGs) are currently marketed and display longer plasma circulation times than unmodified interferon. With increasing realization that the lymphatic system plays an important role in the extrahepatic replication of the hepatitis C virus and in the metastatic dissemination of cancers, this study sought to evaluate PEGylation strategies to optimally enhance the antiviral activity and plasma and lymphatic exposure of interferon after subcutaneous administration in rats...
July 21, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28731365/chemical-composition-and-antimigraine-activity-of-essential-oil-of-angelicae-dahuricae-radix
#4
Jingbo Sun, He Li, Jinghui Sun, Huimin Liu, Jianguang Chen, Chunmei Wang
The aim of this study was to explore the chemical composition and the effect of essential oil of Angelicae dahuricae radix on a nitroglycerin (NTG)-induced rat model of migraine. The CO2 supercritical fluid extraction method was optimized for the extraction of essential oil of A. dahuricae radix (EOAD) and its chemical composition was determined. The migraine model was established by subcutaneous injection of NTG (10 mg/kg) 1 h after the last administration of EOAD. The therapeutic effect of EOAD and its underlying mechanism were assessed by monitoring behavioral changes, levels of nitric oxide (NO) in serum and brain tissues, plasma levels of calcitonin gene-related peptide (CGRP) and endothelin (ET), and ET/NO ratio...
July 21, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28731215/hypophosphatasia-in-adults-clinical-assessment-and-treatment-considerations
#5
Jay R Shapiro, E Michael Lewiecki
Hypophosphatasia (HPP) is a rare inherited disorder of bone affecting approximately 500-600 known individuals in the US. HPP is due to mutations involving the gene for tissue non-specific alkaline phosphatase. Five clinical types of HPP are recognized. The clinical presentation of HPP varies from devastating prenatal intrauterine disease to mild manifestations in adulthood. In adults, main clinical involvement includes early loss of primary or secondary teeth, osteoporosis, bone pain, chondrocalcinosis, and fractures...
July 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28731112/carrier-free-self-assembled-pure-drug-nanorods-composed-of-10-hydroxycamptothecin-and-chlorin-e6-for-combinatorial-chemo-photodynamic-antitumor-therapy-in-vivo
#6
Yan Wen, Wei Zhang, Ningqiang Gong, Yi-Feng Wang, Hong-Bo Guo, Weisheng Guo, Paul C Wang, Xing-Jie Liang
Carrier-free nanodrugs formulated from the supramolecular self-assembly of pure drug molecules have emerged as an innovative and promising strategy for tumor therapy. We report herein a new and simple method to directly assemble a small hydrophobic anticancer drug, 10-hydroxycamptothecin (HCPT), with a photosensitizer chlorin e6 (Ce6) to form stable, discrete nanorods (NRs), which not only circumvent the extreme hydrophobicity of HCPT but also incorporate two different modalities into one delivery system for combination therapy...
July 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28731026/the-novel-gene-ha117-promotes-in-vitro-and-in-vivo-drug-resistance-in-mouse-colon-tumor-cells
#7
Y X Guo, Y H Xu, G H Zheng, X Q Jin
In this study, we characterized the role of HA117, a novel gene we previously identified, in drug resistance in vitro and in vivo. Briefly, CT26 cells expressing HA117 were obtained by infection with a recombinant adenovirus, and tested for drug sensitivity by methyl thiazolyl tetrazolium assay. In addition, the effect of HA117 on drug sensitivity was assessed in CT26 colon tumors transplanted into nude mice. In vitro, expression of HA117 increased the resistance of CT26 cells to 5-fluorouracil 2.75 times (P<0...
July 21, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28730835/the-effect-of-very-low-calorie-diet-on-mitochondrial-dysfunction-in-subcutaneous-adipose-tissue-and-peripheral-monocytes-of-obese-subjects-with-type-2-diabetes-mellitus
#8
M Urbanová, M Mráz, V Ďurovcová, P Trachta, J Kloučková, P Kaválková, D Haluzíková, Z Lacinová, H Hansíková, L Wenchich, M Kršek, M Haluzík
Mitochondrial dysfunction is a potentially important player in the development of insulin resistance and type 2 diabetes mellitus (T2DM). We investigated the changes of mRNA expression of genes encoding main enzymatic complexes of mitochondrial respiratory chain in subcutaneous adipose tissue (SCAT) and peripheral monocytes (PM) of 11 subjects with simple obesity (OB), 16 obese patients with T2DM and 17 healthy lean subjects (C) before and after very low-calorie diet (VLCD) using quantitative real time PCR...
July 18, 2017: Physiological Research
https://www.readbyqxmd.com/read/28730785/pdcd1-strengthens-the-sensitivity-of-ovarian-cancer-to-cisplatin-chemotherapy-by-promoting-apoptosis
#9
Qian Li, Jie-Fan Gao, Bing-Li Qi
PURPOSE: The primary purpose of this study was to make clear the role of PDCD1 in the occurrence and progression of ovarian cancer, and explain its mechanism. METHODS: RT-PCR, westem blot, MTT and immunohistochemistry were used to detect the expression levels of PDCD1 mRNA and protein in human ovarian cancer cell lines (SKOV3, 3AO, CAOV3 and OVCAR3), human normal ovary, serous cystadenoma, and serous cystadenocarcinoma tissue. SKOV3, SKOV3-MOCK, and SKOV3-PDCD1 cells were subcutaneously injected into the armpit of nude mice to observe the effect of PDCD1 expression on tumorigenic ability...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730707/establishment-and-characterization-of-a-novel-murine-model-of-pancreatic-cancer-cachexia
#10
Katherine A Michaelis, Xinxia Zhu, Kevin G Burfeind, Stephanie M Krasnow, Peter R Levasseur, Terry K Morgan, Daniel L Marks
BACKGROUND: Cachexia is a complex metabolic and behavioural syndrome lacking effective therapies. Pancreatic ductal adenocarcinoma (PDAC) is one of the most important conditions associated with cachexia, with >80% of PDAC patients suffering from the condition. To establish the cardinal features of a murine model of PDAC-associated cachexia, we characterized the effects of implanting a pancreatic tumour cell line from a syngeneic C57BL/6 KRAS(G12D) P53(R172H) Pdx-Cre(+/+) (KPC) mouse...
July 20, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28730694/pharmacodynamics-pharmacokinetics-and-safety-of-multiple-ascending-doses-of-the-novel-dual-glucose-dependent-insulinotropic-polypeptide-glucagon-like-peptide-1-agonist-rg7697-in-people-with-type-2-diabetes-mellitus
#11
Christophe Schmitt, Agnès Portron, Shirin Jadidi, Neena Sarkar, Richard DiMarchi
AIMS: To investigate the pharmacodynamics, pharmacokinetics and safety of multiple ascending doses of RG7697, a dual glucose-dependent insulinotropic polypeptide/glucagon-like peptide-1 agonist, in patients with type 2 diabetes mellitus (T2D). METHODS: A total of 56 patients with T2D received once-daily subcutaneous (s.c.) injection of RG7697 (0.25-2.5 mg) or placebo for 14 days in a randomized, double-blind, dose-escalation study. Adverse events (AEs), vital signs, ECGs and routine laboratory variables were intensively monitored...
July 20, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28730562/therapeutical-approaches-to-paroxysmal-hemicrania-hemicrania-continua-and-short-lasting-unilateral-neuralgiform-headache-attacks-a-critical-appraisal
#12
Carlo Baraldi, Lanfranco Pellesi, Simona Guerzoni, Maria Michela Cainazzo, Luigi Alberto Pini
BACKGROUND: Hemicrania continua (HC), paroxysmal hemicrania (PH) and short lasting neuralgiform headache attacks (SUNCT and SUNA) are rare syndromes with a difficult therapeutic approach. The aim of this review is to summarize all articles dealing with treatments for HC, PH, SUNCT and SUNA, comparing them in terms of effectiveness and safety. METHODS: A survey was performed using the pubmed database for documents published from the 1st January 1989 onwards. All types of articles were considered, those ones dealing with symptomatic cases and non-English written ones were excluded...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28730313/derivatization-free-lc-ms-ms-method-for-estrogen-quantification-in-mouse-brain-highlights-a-local-metabolic-regulation-after-oral-versus-subcutaneous-administration
#13
Ecaterina Lozan, Svitlana Shinkaruk, Shaam Alice Al Abed, Valérie Lamothe, Mylène Potier, Aline Marighetto, Jean-Marie Schmitter, Catherine Bennetau-Pelissero, Corinne Buré
17β-Estradiol (17β-E2) is a steroid with pleiotropic actions. In addition to being a sexual hormone, it is also produced in the brain where it modulates the reproductive axis. It has been shown that 17β-E2 also acts on synaptic plasticity and plays a role in neurological pathways and in neurodegenerative diseases. Assaying this steroid in the brain is thus interesting to improve our knowledge of 17β-E2 effects in the brain. However, 17β-E2 concentration in the central nervous system has been reported to be of a few nanograms per gram wet weight (nanomolar range concentration); therefore, its quantification requires both an efficient extraction process and a sensitive detection method...
July 20, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28730246/spontaneous-cholecystocutaneous-fistula-as-a-primary-manifestation-of-gallbladder-adenocarcinoma-associated-with-gallbladder-lithiasis-case-report
#14
Bogdan Vasile Micu, Octavian Aurel Andercou, Carmen Maria Micu, Valentin Militaru, IonuŢ Isaia Jeican, Cătălina Ileana Bungărdean, Stelian ŞtefăniŢă Mogoantă, Dan Radu Miclăuş, Tudor Radu Pop
Spontaneous cholecystocutaneous fistula (SCF) is a rare complication of neglected calculous biliary disease and also an extremely rare complication of gallbladder neoplasm. This pathology has become even rarer because of prompt diagnosis and expedient surgical intervention for gallstones. So far, there is one published report of a SCF due to gallbladder adenocarcinoma. We present the case of a woman aged 87 years, admitted to the Vth Department of Surgery, Clinical Municipal Hospital of Cluj-Napoca (Romania) for a tumoral mass located in the epigastrium...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729774/clinical-applications-of-free-medial-tibial-flap-with-posterior-tibial-artery-for-head-and-neck-reconstruction-after-tumor-resection
#15
Qi Zhong, Jugao Fang, Zhigang Huang, Xiaohong Chen, Lizhen Hou, Yang Zhang, Pingdong Li, Hongzhi Ma, Hongbo Xu
Tumor resection causes damage in the head and neck which creates problems in swallowing, chewing, articulation, and vision, all of which seriously affect patients' quality of life. In this work, we evaluated the application of a free medial tibial flap in reconstruction of head and neck defects after tumor resection. We discussed the anatomy, surgical technique, and the advantages and disadvantages of the flap. We found several benefits for the flap, such as, it is especially effective for the defects that require thin-layer epithelium to cover or the separated soft tissue defect; a two-team approach can be used because the donor site is far away from the head and neck; and the flap is easy to integrate because of the subcutaneous fat layer of the free medial tibial flap is thin and the flap is soft...
June 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28729704/growth-hormone-reverses-dyslipidemia-in-adult-offspring-after-maternal-undernutrition
#16
Wei-Fen Zhu, Sheng-Jie Tang, Zheng Shen, Ying-Min Wang, Li Liang
The abnormal intrauterine milieu of fetal growth retardation could lead to dyslipidemia in adulthood. Studies have shown that growth hormone (GH) therapy in small for gestational age (SGA) children would be beneficial for metabolic parameters. Here we investigated whether GH treatment introduced at adolescent period in SGA could reverse dyslipidemia during later life. SGA rat model was established by using semi-starvation treatment during the whole pregnancy. SGA or appropriate for gestational age (AGA) offspring were assigned to receive GH or normal saline (NS)...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729456/mechanistic-multi-tissue-modeling-of-gilz-regulation-integrating-circadian-gene-expression-with-receptor-mediated-corticosteroid-pharmacodynamics
#17
Vivaswath S Ayyar, Debra C DuBois, Richard R Almon, William J Jusko
The glucocorticoid-induced leucine zipper (GILZ) is an important mediator of anti-inflammatory corticosteroid action. The pharmacokinetic/pharmacodynamic/pharmacogenomic effects of acute and chronic methylprednisolone (MPL) dosing on the tissue-specific dynamics of GILZ expression were examined in rats. A mechanism-based model was developed to investigate and integrate the role of MPL and circadian rhythms on the transcriptional enhancement of GILZ in multiple tissues. Animals received a single 50 mg/kg intramuscular bolus or a seven-day 0...
July 20, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28728859/-multiple-granular-cell-tumours-in-a-patient-with-noonan-s-syndrome-and-juvenile-myelomonocytic-leukaemia
#18
J Castagna, J Clerc, A-S Dupond, C Laresche
BACKGROUND: Granular cell tumour (GCT) is a rare form of tumour comprising Schwann cells. Herein, we report a case of a child presenting Noonan syndrome complicated by juvenile myelomonocytic leukaemia (JMML) and who also developed a multiple form of GCT. We discussed the molecular mechanisms that might account for this association. PATIENTS AND METHODS: A six-year-old boy with Noonan syndrome complicated by JMML presented three asymptomatic subcutaneous nodules on his back, forearm and neck...
July 17, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28728599/a-phase-iii-randomized-two-armed-double-blind-parallel-active-controlled-and-non-inferiority-clinical-trial-to-compare-efficacy-and-safety-of-biosimilar-adalimumab-cinnora%C3%A2-to-the-reference-product-humira%C3%A2-in-patients-with-active-rheumatoid-arthritis
#19
Ahmadreza Jamshidi, Farhad Gharibdoost, Mahdi Vojdanian, Soosan G Soroosh, Mohsen Soroush, Arman Ahmadzadeh, Mohammad Ali Nazarinia, Mohammad Mousavi, Hadi Karimzadeh, Mohammad Reza Shakibi, Zahra Rezaieyazdi, Maryam Sahebari, Asghar Hajiabbasi, Ali Asghar Ebrahimi, Najmeh Mahjourian, Amin Mohammadinejad Rashti
BACKGROUND: This study aimed to compare efficacy and safety of test-adalimumab (CinnoRA®, CinnaGen, Iran) to the innovator product (Humira®, AbbVie, USA) in adult patients with active rheumatoid arthritis (RA). METHODS: In this randomized, double-blind, active-controlled, non-inferiority trial, a total of 136 patients with active RA were randomized to receive 40 mg subcutaneous injections of either CinnoRA® or Humira® every other week, while receiving methotrexate (15 mg/week), folic acid (1 mg/day), and prednisolone (7...
July 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28728486/relationship-between-neck-circumference-insulin-resistance-and-arterial-stiffness-in-overweight-and-obese-subjects
#20
Francesco Fantin, Gabriele Comellato, Andrea P Rossi, Elisa Grison, Elena Zoico, Gloria Mazzali, Mauro Zamboni
Background Only a few studies have investigated the relationship between neck circumference and cardiometabolic risk. The aim of this study was to assess the relationships between neck circumference, waist circumference, metabolic variables and arterial stiffness in a group of overweight and obese subjects evaluating a possible independent role of neck circumference in determining arterial stiffness. Methods and results We studied 95 subjects (53 women) with an age range of 20-77 years and body mass index range from 25...
January 1, 2017: European Journal of Preventive Cardiology
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