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https://www.readbyqxmd.com/read/27927058/immunoadjuvant-potential-of-cross-linked-dextran-microspheres-mixed-with-chitosan-nanospheres-encapsulated-with-tetanus-toxoid
#1
Haniyeh Pirouzmand, Bahman Khameneh, Mohsen Tafaghodi
CONTEXT: Nasal mucosa is a desirable route for mucosal vaccine delivery. Mucosal co-administration of chitosan nanoparticles with absorption enhancers such as cross-linked dextran microspheres (CDM, Sephadex(®)) is a promising antigen delivery system. OBJECTIVE: In the current study, the chitosan nanospheres loaded with tetanus toxoid (CHT:TT NPs) was prepared and characterized. The immune responses against tetanus toxoid after nasal administration of CHT:TT NPs alone or mixed with CDM were also determined...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27913162/intranasal-delivery-of-antipsychotic-drugs
#2
REVIEW
Yogesh K Katare, Justin E Piazza, Jayant Bhandari, Ritesh P Daya, Kosalan Akilan, Madeline J Simpson, Todd Hoare, Ram K Mishra
Antipsychotic drugs are used to treat psychotic disorders that afflict millions globally and cause tremendous emotional, economic and healthcare burdens. However, the potential of intranasal delivery to improve brain-specific targeting remains unrealized. In this article, we review the mechanisms and methods used for brain targeting via the intranasal (IN) route as well as the potential advantages of improving this type of delivery. We extensively review experimental studies relevant to intranasal delivery of therapeutic agents for the treatment of psychosis and mental illnesses...
November 29, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27910060/microrna-delivery-strategies-to-the-lung-in-a-model-of-pulmonary-hypertension
#3
Lin Deng, Andrew H Baker, Angela C Bradshaw
Pulmonary arterial hypertension (PAH) is characterized by enhanced proliferation of pulmonary artery smooth muscle cells and endothelial cells associated with obliteration of small pulmonary arterioles and formation of plexiform lesions. To date, no curative treatments have been identified for pulmonary arterial hypertension. There are various therapeutic options, including conventional medical therapies and oral, subcutaneous, intravenous, and inhalation delivery. We have previously shown that miR-143/145 knockout can prevent the development of chronic hypoxia-induced pulmonary hypertension (PH) in mice...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27908827/different-routes-and-doses-influence-protection-in-pigs-immunised-with-the-naturally-attenuated-african-swine-fever-virus-isolate-ourt88-3
#4
Pedro J Sánchez-Cordón, Dave Chapman, Tamara Jabbar, Ana L Reis, Lynnette Goatley, Christopher L Netherton, Geraldine Taylor, Maria Montoya, Linda Dixon
This study compares different combinations of doses and routes of immunisation of pigs with low virulent African swine fever virus (ASFV) genotype I isolate OURT88/3, including the intramuscular and intranasal route, the latter not previously tested. Intranasal immunisations with low and moderate doses (10(3) and 10(4) TCID50) of OURT88/3 provided complete protection (100%) against challenge with virulent genotype I OURT88/1 isolate. Only mild and transient clinical reactions were observed in protected pigs...
November 28, 2016: Antiviral Research
https://www.readbyqxmd.com/read/27894939/intranasal-cerebrolysin-attenuates-learning-and-memory-impairments-in-d-galactose-induced-senescence-in-mice
#5
Ehsan Pourmemar, Alireza Majdi, Morteza Haramshahi, Mahnaz Talebi, Pouran Karimi, Saeed Sadigh-Eteghad
Neurotrophic factors are currently being considered as pro-cognitive therapeutic approaches for management of cognitive deficits. This study aims to evaluate the effects of intranasal (i.n.) or intraperitoneal (i.p.) administration of Cerebrolysin (CBL) (as a mixture of neurotrophic factors) on the d-galactose-induced oxidative stress, apoptosis and memory as well as learning impairment in mice. For this purpose, CBL (1, 2.5, 5 ml/kg/i.p.) or (1 ml/kg/i.n.), were administrated daily in d-galactose-received (100 mg/kg/subcutaneous (s...
November 25, 2016: Experimental Gerontology
https://www.readbyqxmd.com/read/27894924/antidepressant-like-effects-exerted-by-the-intranasal-administration-of-a-glucagon-like-peptide-2-derivative-containing-cell-penetrating-peptides-and-a-penetration-accelerating-sequence-in-mice
#6
Sachie Sasaki-Hamada, Ryuji Nakamura, Yusuke Nakao, Toshiki Akimoto, Emi Sanai, Mio Nagai, Michiko Horiguchi, Chikamasa Yamashita, Jun-Ichiro Oka
The intracerebroventicular (i.c.v.) administration of glucagon-like peptide-2 (GLP-2) to rodents was shown to have antidepressant-like effects in imipramine-resistant depression-model mice. In order to utilize GLP-2 as a clinical treatment tool for depression, we herein focused on the intranasal delivery that is non-invasive approach, because the i.c.v. administration is invasive and impractical. In the present study, we prepared a GLP-2 derivative containing cell penetrating peptides (CPPs) and a penetration accelerating sequence (PAS) (PAS-CPPs-GLP-2) for the intranasal (i...
November 25, 2016: Peptides
https://www.readbyqxmd.com/read/27869357/the-impact-of-endoscopic-sinus-surgery-on-paranasal-physiology-in-simulated-sinus-cavities
#7
Ravi Jain, Haribalan Kumar, Merryn Tawhai, Richard Douglas
BACKGROUND: Surgery improves symptoms for the majority of chronic rhinosinusitis (CRS) patients; however, physiological changes in the sinus cavities remain poorly characterized. Direct measurement of changes in airflow, pressure, temperature, humidity, and intranasal spray distribution following surgery is technically challenging. Accordingly, we have used computational fluid dynamic modeling to quantify how these parameters change postoperatively. METHODS: Computed tomography images from a normal control, a patient with CRS preoperatively and postoperatively, and a patient following an endoscopic Lothrop procedure (ELP) were used to create 4 three-dimensional models of the sinus cavities...
November 21, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27860045/immunization-with-r-lactococcus-lactis-expressing-outer-membrane-protein-a-ompa-of-shigella-dysenteriae-type-1-evaluation-of-oral-and-intranasal-route-of-administration
#8
Bhrugu Yagnik, Drashya Sharma, Harish Padh, Priti Desai
AIMS: To evaluate the comparative immunogenic potential of food grade Lactococcus lactis (L. lactis) expressing Outer membrane protein A (OmpA) of Shigella dysenteriae type-1 (SD-1) when administered either orally or intranasally. METHODS AND RESULTS: OmpA of SD-1 was cloned and expressed first in Escherichia coli (E. coli) and then in L. lactis. Presence of recombinant gene was confirmed by restriction enzyme digestion and Immunoblot analysis. Using immobilized metal affinity chromatography (IMAC), OmpA was purified from recombinant E...
November 17, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27834150/intranasal-delivery-of-microspheres-loaded-with-20-r-ginsenoside-rg3-enhances-anti-fatigue-effect-in-mice
#9
Wei Zhang, Xiaoyu Wang, Min Zhang, Min Xu, Wenyan Tang, Yi Zhang, Lei Lu, Jing Gao, Shen Gao
Nasal delivery of 20 (R) -ginsenoside Rg3 (Rg3) has a short-lived anti-fatigue effect owing to rapid clearance by nasal cilia. Thus, in order to extend the residence time of Rg3 in the nasal cavity, a new drug delivery system is needed. Chitosan microspheres loaded with Rg3 were prepared using a multi-step emulsification method. They had a spherical shape with a mean diameter of 44.9±12.6 µm. The drug-loading ratio was 10.25±0.08%, and the encapsulation ratio was 30.61±1.46%. Our in vitro mucoadhesion experiment demonstrated that 70...
November 9, 2016: Current Drug Delivery
https://www.readbyqxmd.com/read/27832472/oxycodone-deterx-%C3%A2-er-capsules-a-review-in-severe-chronic-pain
#10
Yvette N Lamb, Karly P Garnock-Jones, Susan J Keam
Oxycodone DETERx (®) extended-release (ER) capsules (Xtampza(®) ER), an abuse-deterrent formulation of oxycodone as the myristate salt, are approved in the USA for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate. This narrative review discusses the clinical efficacy and tolerability of the oxycodone DETERx (®) ER capsule formulation in the management of severe pain, and provides an overview of pharmacokinetics, abuse-deterrent properties and alternative administration options...
November 10, 2016: Drugs
https://www.readbyqxmd.com/read/27830630/double-adjuvanting-strategy-for-peptide-based-vaccines-trimethyl-chitosan-nanoparticles-for-lipopeptide-delivery
#11
Nirmal Marasini, Ashwini K Giddam, Zeinab G Khalil, Waleed M Hussein, Robert J Capon, Michael R Batzloff, Michael F Good, Istvan Toth, Mariusz Skwarczynski
AIM: To develop novel polymer-based nanoscale delivery system for lipopeptide-based vaccine against group A Streptococcus (GAS). MATERIALS & METHODS: Four types of lipopeptide antigen-loaded polymeric nanoparticles (NP) were prepared. NP were accessed for their capacity to be taken up by dendritic cells; effect on dendritic cell maturation; ability to induce mucosal and systemic immunity; and capability to induce antibody responses that opsonize GAS bacteria. RESULTS & DISCUSSION: The combination of adjuvanting properties of lipopeptides and dextran/trimethyl chitosan-based NP had a synergistic effect on humoral immunity, and the produced antibodies showed high opsonic activity against clinical GAS isolates...
November 10, 2016: Nanomedicine
https://www.readbyqxmd.com/read/27828797/intranasal-medication-administration-using-a-squeeze-bottle-atomizer-results-in-overdosing-if-deployed-in-supine-patients
#12
Jordan E Goldhammer, Mark A Dobish, Joshua T McAnulty, Todd J Smaka, Richard H Epstein
BACKGROUND: Vasoconstrictors and local anesthetics are commonly administered using a squeeze bottle atomizer to the nasal mucosa to reduce edema, limit bleeding, and provide analgesia. Despite widespread use, there are few clinical guidelines that address technical details related to safe administration. The purpose of this study was to quantify, via simulation, the amount of liquid delivered to the nasal mucosa when patients are in the supine and upright positions and administration parameters that would reliably provide the desired amount of medication per spray...
November 8, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27823900/gene-based-neonatal-immune-priming-potentiates-a-mucosal-adenoviral-vaccine-encoding-mycobacterial-ag85b
#13
Guixiang Dai, Hamada F Rady, Weitao Huang, Judd E Shellito, Carol Mason, Alistair J Ramsay
Tuberculosis remains a major public health hazard worldwide, with neonates and young infants potentially more susceptible to infection than adults. BCG, the only vaccine currently available, provides some protection against tuberculous meningitis in children but variable efficacy in adults, and is not safe to use in immune compromised individuals. A safe and effective vaccine that could be given early in life, and that could also potentiate subsequent booster immunization, would represent a significant advance...
December 7, 2016: Vaccine
https://www.readbyqxmd.com/read/27810560/intranasal-delivery-of-ciprofloxacin-to-rats-a-topical-approach-using-a-thermoreversible-in-situ-gel
#14
Joana Sousa, Gilberto Alves, Paula Oliveira, Ana Fortuna, Amílcar Falcão
Intranasal administration of antibiotics is an alternative and attractive delivery approach in the treatment of local infections such as chronic rhinosinusitis. This topical route has the advantage of delivering high drug concentrations directly to the site of infection when trying to eradicate the highly resistant bacterial biofilms. The purpose of this study was to assess and compare the pharmacokinetic parameters of ciprofloxacin following intranasal and intravenous administrations to rats in plasma, olfactory bulb and nasal mucosa of two different nasal regions...
November 1, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27809679/induction-of-both-local-immune-response-in-mice-and-protection-in-a-rabbit-model-by-intranasal-immunization-with-modified-vaccinia-ankara-virus-expressing-a-secreted-form-of-bovine-herpesvirus-1-glycoprotein-d
#15
María Paula Del Medico Zajac, Flavia Adriana Zanetti, María Soledad Esusy, Carlos Rodolfo Federico, Osvaldo Zabal, Alejandro Rafael Valera, Gabriela Calamante
In this study, we evaluated the immunogenicity and efficacy of mucosal delivery of a recombinant modified vaccinia Ankara virus (MVA) expressing the secreted version of bovine herpesvirus type 1 (BoHV-1) glycoprotein D (MVA-gDs) without addition of adjuvant in two animal models. First, we demonstrated the capability of MVA-gDs of inducing both local and systemic anti-gD humoral immune response after intranasal immunization of mice. Then, we confirmed that two doses of MVA-gDs administered intranasally to rabbits induced systemic anti-gD antibodies and conferred protection against BoHV-1 challenge...
November 3, 2016: Viral Immunology
https://www.readbyqxmd.com/read/27785602/induction-of-specific-humoral-immune-response-in-mice-immunized-with-rop18-nanospheres-from-toxoplasma-gondii
#16
Habibun Nabi, Imran Rashid, Nisar Ahmad, Aneela Durrani, Haroon Akbar, Saher Islam, Amna Arshad Bajwa, Wasim Shehzad, Kamran Ashraf, Nyla Imran
Toxoplasmosis is one of the most common zoonotic protozoal diseases. Recent advances in biotechnology have produced recombinant protein, which are immunogenic, and progress in nano-pharmaceutics has generated encapsulated protein in nanospheres, which are suitable for vaccine delivery. DNA was extracted from Toxoplasma gondii oocysts and was confirmed through nested PCR and sequencing. The 1665 bp of ROP18 was cloned into the easy vector system: pGEM-T by the T-A cloning method. DH5α bacteria were transfected with pGEM-ROP18...
October 27, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27784250/recent-advances-in-non-invasive-delivery-of-macromolecules-using-nanoparticulate-carriers-system
#17
Md Shadab, Shadabul Haque, Ravi Sheshala, Lim Wei Meng, Venkata Srikanth Meka, Javed Ali
BACKGROUND: The drug delivery of macromolecules such as proteins and peptides has become an important area of research and represents the fastest expanding share of the market for human medicines. The most common method for delivering macromolecules is parenterally. However parenteral administration of some therapeutic macromolecules has not been effective because of their rapid clearance from the body. As a result, most macromolecules are only therapeutically useful after multiple injections, which causes poor compliance and systemic side effects...
October 26, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27780343/gene-editing-and-genetic-lung-disease-basic-research-meets-therapeutic-application
#18
Deepthi Alapati, Edward E Morrisey
While our understanding of the genetics and pathology of congenital lung diseases such as surfactant protein deficiency, cystic fibrosis and alpha 1 antitrypsin deficiency is extensive, treatment options are lacking. Since the lung is a barrier organ in direct communication with the external environment, targeted delivery of gene corrective technologies to the respiratory system via intra-tracheal or intranasal routes is an attractive option for therapy. CRISPR/Cas9 gene editing technology is a promising approach to repair or inactivate disease causing mutations...
October 25, 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/27775159/a-dual-purpose-universal-influenza-vaccine-candidate-confers-protective-immunity-against-anthrax
#19
Maria T Arévalo, Junwei Li, Diana Diaz-Arévalo, Yanping Chen, Ashley Navarro, Lihong Wu, Yongyong Yan, Mingtao Zeng
Preventative influenza vaccines must be reformulated annually because of antigen shift and drift of circulating influenza viral strains. However, seasonal vaccines do not always match the circulating strains, and there is the ever-present threat that avian influenza viruses may adapt to humans. Hence, a universal influenza vaccine is needed to provide protective immunity against a broad range of influenza viruses. We designed an influenza antigen consisting of 3 tandem M2e repeats plus HA2, in combination with a detoxified anthrax edema toxin delivery system (EFn plus PA) to enhance immune responses...
October 24, 2016: Immunology
https://www.readbyqxmd.com/read/27771388/intranasal-treatment-with-a-novel-immunomodulator-mediates-innate-immune-protection-against-lethal-pneumonia-virus-of-mice
#20
Elisa C Martinez, Ravendra Garg, Pratima Shrivastava, Susantha Gomis, Sylvia van Drunen Littel-van den Hurk
Respiratory syncytial virus (RSV) is the leading cause of acute lower respiratory tract infections in infants and young children. There are no licensed RSV vaccines available, and the few treatment options for high-risk individuals are either extremely costly or cause severe side effects and toxicity. Immunomodulation mediated by a novel formulation consisting of the toll-like receptor 3 agonist poly(I:C), an innate defense regulator peptide and a polyphosphazene (P-I-P) was evaluated in the context of lethal infection with pneumonia virus of mice (PVM)...
October 19, 2016: Antiviral Research
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