keyword
MENU ▼
Read by QxMD icon Read
search

Transdermal

keyword
https://www.readbyqxmd.com/read/28634138/intracellular-and-transdermal-protein-delivery-mediated-by-non-covalent-interactions-with-a-synthetic-guanidine-rich-molecular-carrier
#1
Jungkyun Im, Sanket Das, Dongjun Jeong, Chang-Jin Kim, Hyun-Suk Lim, Ki Hean Kim, Sung-Kee Chung
The impermeability of the cell plasma membrane is one of the major barriers for protein transduction into mammalian cells, and it also limits the use of proteins as therapeutic agents. Protein transduction has usually been achieved based on certain invasive processes or cell penetrating peptides (CPP). Herein we report our study in which a synthetic guanidine-rich molecular carrier is used as a delivery vector for intracellular and transdermal delivery of proteins. First a sorbitol-based molecular carrier having 8 guanidine units (Sor-G8) was synthesized, and then was simply mixed with a cargo protein of varying sizes to form the non-covalent complex of carrier-cargo proteins...
June 17, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28633107/effects-of-chemical-and-physical-enhancement-techniques-on-transdermal-delivery-of-3-fluoroamphetamine-hydrochloride
#2
Ashana Puri, Kevin S Murnane, Bruce E Blough, Ajay K Banga
The present study investigated the passive transdermal delivery of 3-fluoroamphetamine hydrochloride (PAL-353) and evaluated the effects of chemical and physical enhancement techniques on its permeation through human skin. In vitro drug permeation studies through dermatomed human skin were performed using Franz diffusion cells. Passive permeation of PAL-353 from propylene glycol and phosphate buffered saline as vehicles was studied. Effect of oleic acid, maltose microneedles, ablative laser, and anodal iontophoresis on its transdermal permeation was investigated...
June 17, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28631206/diclofenac-loaded-lipid-nanovesicles-prepared-by-double-solvent-displacement-for-skin-drug-delivery
#3
M Sala, F Locher, M Bonvallet, G Agusti, A Elaissari, H Fessi
PURPOSE: Herein, we detail a promising strategy of nanovesicle preparation based on control of phospholipid self-assembly: the Double Solvent Displacement. A systematic study was conducted and diclofenac as drug model encapsulated. In vitro skin studies were carried out to identify better formulation for dermal/transdermal delivery. METHODS: This method consists in two solvent displacements. The first one, made in a free water environment, has allowed triggering a phospholipid pre-organization...
June 19, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28626058/risk-of-stroke-with-various-types-of-menopausal-hormone-therapies-a-national-cohort-study
#4
Ellen Løkkegaard, Lars Hougaard Nielsen, Niels Keiding
BACKGROUND AND PURPOSE: Double-blind randomized studies on the effects of oral postmenopausal hormone therapies were stopped mainly because of increased risk of stroke. We aimed to assess the risk of all strokes and various subtypes associated with hormone therapy and explore the influence of regimens and routes of administration. METHODS: A national historical cohort of women aged 51 to 70 years from 1995 to 2010 was established by linking 5 Danish registries. The National Registry of Medicinal Product Statistics provided information on hormone therapy exposure and the National Patient or Cause of Death Registries supplied data regarding stroke diagnoses (ischemic/hemorrhagic/subarachnoid hemorrhage)...
June 16, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28625890/acute-effects-of-coffee-on-skin-blood-flow-and-microvascular-function
#5
Erik Tesselaar, Dzeneta Nezirevic Dernroth, Simon Farnebo
OBJECTIVE: Studies on the acute effects of coffee on the microcirculation have shown contradicting results. This study aimed to investigate if intake of caffeine-containing coffee changes blood flow and microvascular reactivity in the skin. METHODS: We measured acute changes in cutaneous vascular conductance (CVC) in the forearm and the tip of the finger, the microvascular response to transdermal iontophoresis of acetylcholine (ACh) and sodium nitroprusside (SNP) and post-occlusive reactive hyperemia (PORH) in the skin, after intake of caffeinated or decaffeinated coffee...
June 15, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28625748/comparison-of-liposomal-drug-formulations-for-transdermal-iontophoretic-drug-delivery
#6
K Malinovskaja-Gomez, S Espuelas, M J Garrido, J Hirvonen, T Laaksonen
This study was aimed to evaluate the in vitro transdermal direct/pulsed current iontophoretic delivery of an amphiphilic model compound from various lipid vesicle-encapsulated formulations compared to free-drug formulation. Conventional, pegylated, ultradeformable liposomes (transfersomes) and ethosomes loaded with a negatively charged drug diclofenac sodium (DS) were prepared and characterized. All the liposomes possessed an average size of ≈100-150nm and negative zeta potential. No changes in colloidal stability were detected after 8h incubation of any vesicle formulation under constant or pulsed iontophoretic current...
June 15, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28624872/abaloparatide-first-global-approval
#7
Matt Shirley
Abaloparatide (Tymlos™) is a synthetic peptide analogue of human parathyroid hormone-related protein that was developed by Radius Health as an osteoanabolic agent for the treatment of postmenopausal osteoporosis. Abaloparatide acts through selective activation of the parathyroid hormone type 1 receptor signalling pathway. In April 2017, subcutaneous abaloparatide received its first global approval, in the USA, for the treatment of postmenopausal women with osteoporosis at high risk for fracture, defined as a history of osteoporotic fracture, multiple risk factors for fracture, or patients who have failed or are intolerant to other available osteoporosis therapy...
June 17, 2017: Drugs
https://www.readbyqxmd.com/read/28622476/the-effect-of-transdermal-estrogen-patch-use-on-cardiovascular-outcomes-a-systematic-review
#8
Prema Bezwada, Atif Shaikh, Deepika Misra
BACKGROUND: Vasomotor symptoms are the most commonly reported menopausal symptoms. Hormone therapy has been widely used to relieve postmenopausal symptoms. With studies suggesting an increased risk of cardiovascular events and breast cancer with oral hormone therapy use, there has been reluctance to use it. The transdermal estrogen patch provides relief from menopausal symptoms. However, there are limited data on mortality and cardiovascular outcomes, while on the transdermal estrogen patch...
June 16, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28620730/advances-towards-painless-vaccination-and-newer-modes-of-vaccine-delivery
#9
Neha Garg, Anju Aggarwal
Vaccines have been successful in reducing the mortality and morbidity, but most of them are delivered by intramuscular or intravenous route. They are associated with pain to the baby and bring lot of anxiety for the parents. There has been a marked increase in the number of injections required in first two years of life for completing the vaccination schedule. Hence, there is a need to have a painless vaccine delivery system. Numerous new routes of vaccination like, oral, nasal and transdermal routes are being tried...
June 16, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28619391/pharmacists-attitudes-regarding-provision-of-sexual-and-reproductive-health-services
#10
Austin T Hilverding, Natalie A DiPietro Mager
OBJECTIVES: The primary objective was to assess attitudes from Ohio pharmacists about contraceptive authority. Secondary objectives included determining pharmacists' perceptions of benefits, barriers, and preparedness for offering such services and examining attitudes about and experiences with other reproductive health topics to inform future research. METHODS: An anonymous 26-question Institutional Review Board-approved electronic survey was developed and distributed via Qualtrics to a random sample of 500 licensed pharmacists in Ohio...
June 12, 2017: Journal of the American Pharmacists Association: JAPhA
https://www.readbyqxmd.com/read/28618737/effects-of-artcure-diffusional-patch-application-on-pain-and-functional-status-in-lumbar-disc-herniation-patients-a-prospective-randomized-controlled-study
#11
Mahmut Uğurlu, Mehmet Atıf Erol Aksekili, Berat Meryem Alkan, Halil Kara, Ceyhun Çağlar
BACKGROUND/AIM: The aim of this study was to assess the efficacy of the Artcure Diffusional Patch, which contains a mixture of 6 herbal oils (oleum thymi, oleum limonis, oleum nigra, oleum rosmarini, oleum chamomilla, oleum lauriexpressum) and has a hypoosmolar lipid structure, in the conservative treatment of lumbar disc herniation patients and to show the advantages and/or possibility of using this as an alternative method to surgery. MATERIALS AND METHODS: Of the 120 patients enrolled, 79 clinically diagnosed patients were included in the study...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28615185/hormone-replacement-treatment-choices-in-complete-androgen-insensitivity-syndrome-an-audit-of-an-adult-clinic
#12
Jennifer K Y Ko, Thomas F J King, Louise Williams, Sarah M Creighton, Gerard S Conway
OBJECTIVE: To review the treatment choices of women with Complete Androgen Insensitivity Syndrome (CAIS) at a single tertiary centre. DESIGN: Retrospective review Patients: Women with CAIS identified from our database. RESULTS: The study group comprised 141 women with CAIS. Eleven percent of women had gonads in situ, 3 of which were under workup for gonadectomy. The age of gonadectomy in the remainder was 17 (0.1-53) years old. The most common form of HRT was oral oestrogen or transdermal oestrogen in 80%...
June 14, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28612633/granisetron-in-the-treatment-of-chemotherapy-induced-nausea-and-vomiting-cinv-is-there-still-a-role-after-comparison-with-palonosetron
#13
Sheila A Doggrell
Chemotherapy-induced nausea and vomiting (CINV) has a negative impact on the lives of subjects receiving chemotherapy. In 2009, the second generation 5-HT3-receptor antagonist, palonosetron, which is longer-acting than granisetron, was shown, as part of dual therapy with dexamethasone, to be superior to intravenous granisetron in the delayed phase of CINV. Area covered: In an attempt to maintain plasma levels of granisetron during the delayed phase of CINV, longer-acting preparations of granisetron have been manufactured...
June 19, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28610893/an-insight-into-the-molecular-mechanism-of-the-temporary-enhancement-effect-of-isopulegol-decanoate-on-the-skin
#14
Xiaochang Liu, Meiying Liu, Chao Liu, Peng Quan, Yongshan Zhao, Liang Fang
Chemical enhancers are widely used to facilitate drug permeation in transdermal drug delivery system (TDDS) and the effect of chemical enhancers is desired to be temporary. Though temporary enhancement effect of chemical enhancers has been widely discussed, there is still a lack of knowledge about the molecular mechanism of temporary enhancement effect. Using the skin permeation of flurbiprofen as a probe, the temporary enhancement effect of isopulegol decanoate (ISO-10) was evaluated with in vitro permeation experiment and confocal laser scanning microscopy (CLSM)...
June 10, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28610471/mechanically-loading-cell-hydrogel-constructs-with-low-intensity-pulsed-ultrasound-for-bone-repair
#15
James A Veronick, Fayekah Assanah, Nicole J Piscopo, Yasemin Kutes, Varun Vyas, Bryan D Huey, Yusuf Khan
Low-intensity pulsed ultrasound (LIPUS) has been shown to be effective for orthopaedic fracture repair and non-union defects but the specific mechanism behind its efficacy is still unknown. Previously we have shown a measurable acoustic radiation force at LIPUS intensities traditionally used for clinical treatment and have applied this force to osteoblastic cells encapsulated in type I collagen hydrogels. Our goal here is to provide insight and inform the appropriate design of a cell therapy approach to bone repair in which osteoblasts are embedded in collagen hydrogels, implanted into a bony defect, and then transdermally stimulated using LIPUS-derived acoustic radiation force to enhance bone formation at the earliest time points after bone defect repair...
June 13, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28608140/on-the-road-to-development-of-an-in-vitro-permeation-test-ivpt-model-to-compare-heat-effects-on-transdermal-delivery-systems-exploratory-studies-with-nicotine-and-fentanyl
#16
Soo Hyeon Shin, Priyanka Ghosh, Bryan Newman, Dana C Hammell, Sam G Raney, Hazem E Hassan, Audra L Stinchcomb
PURPOSE: At elevated temperatures, the rate of drug release and skin permeation from transdermal delivery systems (TDS) may be higher than at a normal skin temperature. The aim of this study was to compare the effect of heat on the transdermal delivery of two model drugs, nicotine and fentanyl, from matrix-type TDSs with different formulations, using in vitro permeation tests (IVPT). METHODS: IVPT experiments using pig skin were performed on two nicotine and three fentanyl TDSs...
June 12, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28605693/evaluation-of-flunixin-meglumine-pour-on-administration-on-prostaglandin-e2-concentration-in-inflammatory-exudate-after-induction-of-inflammation-in-cattle
#17
Julien Thiry, René Fournier, Olivier Roy, Mathias Catala
The effect of flunixin transdermal pour-on solution (Finadyne® Transdermal; MSD Animal Health) on prostaglandin E2 (PGE2) synthesis in bovine inflammatory exudate was evaluated in a tissue cage model of acute inflammation. Twelve calves were randomly allocated to two-treatment groups over two sequences. Three weeks prior to the first period, sterile hollow perforated polyethylene balls were surgically embedded in the subcutis at four distinct sites in each animal. On the first day of each period, an aseptic inflammation was induced by injecting 0...
April 20, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28600224/enhancement-of-transdermal-protein-delivery-by-photothermal-effect-of-gold-nanorods-coated-on-polysaccharide-based-hydrogel
#18
Aung Thu Haine, Yuki Koga, Yuta Hashimoto, Taishi Higashi, Keiichi Motoyama, Hidetoshi Arima, Takuro Niidome
Transdermal protein delivery is a useful and attractive method for protein therapy and dermal vaccination. However, this delivery method is restricted by the low permeability of the stratum corneum. The purpose of this study was to develop a transdermal delivery system for enhancement of protein permeability into the skin. First, we prepared a transparent gel patch made of polysaccharides with gold nanorods on the gel surface and fluorescein isothiocyanate-modified ovalbumin (FITC-OVA) inside. Next, the gel patch was placed on mouse skin to allow contact with the coated gold nanorods, and irradiated by a continuous-wave laser...
June 6, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28596104/effect-of-stratum-corneum-heterogeneity-anisotropy-asymmetry-and-follicular-pathway-on-transdermal-penetration
#19
Ana M Barbero, H Frederick Frasch
The impact of the complex structure of the stratum corneum on transdermal penetration is not yet fully described by existing models. A quantitative and thorough study of skin permeation is essential for chemical exposure assessment and transdermal delivery of drugs. The objective of this study is to analyze the effects of heterogeneity, anisotropy, asymmetry, follicular diffusion, and location of the main barrier of diffusion on percutaneous permeation. In the current study, the solution of the transient diffusion through a two-dimensional-anisotropic brick-and-mortar geometry of the stratum corneum is obtained using the commercial finite element program COMSOL Multiphysics...
June 5, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28594244/acute-cholinergic-syndrome-in-a-patient-with-mild-alzheimer-s-type-dementia-who-had-applied-a-large-number-of-rivastigmine-transdermal-patches-on-her-body
#20
Yoshiki Suzuki, Yoshito Kamijo, Tomohiro Yoshizawa, Yuji Fujita, Kiyotaka Usui, Tohru Kishino
CASE PRESENTATION: A 91-year-old woman was transferred to our Emergency Medical Center and Poison Center with somnolence, hypertension (186/61 mm Hg), and repeated vomiting. Three hours later, 10 transdermal patches, each containing 18 mg of rivastigmine (9.5 mg/24 h), were found on her lower back and both thighs, when miosis, facial and trunk sweating, enhanced bowel sound, hypertension, and sinus tachycardia were noted. She was diagnosed with acute cholinergic syndrome due to rivastigmine poisoning...
June 8, 2017: Clinical Toxicology
keyword
keyword
109650
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"