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Find video protocols related to scientific articles indexed in Pubmed.
DESIGN AND CHARACTERIZATION OF AN OCULAR TOPICAL LIPOSOMAL PREPARATION TO REPLENISH THE LIPIDS OF THE TEAR FILM.
Invest. Ophthalmol. Vis. Sci.
PUBLISHED: 11-08-2014
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Purpose: Dry eye (DE) includes a group of diseases related to tear film disorders. Current trends for DE therapy focus on providing lipid components to replace the damaged lipid layer. Formulations that contain aqueous and mucin-like compounds may have additional therapeutic benefits for DE patients. The aim of this work was to design and evaluate novel formulations having the potential to become topical treatment for DE. Methods: Unpreserved liposomal formulations composed of phosphatidylcholine (PC), cholesterol, and ?-tocopherol (vit E) were prepared by the thin-film hydration technique. Formulations were characterized in terms of liposome size, pH, surface tension, osmolarity, and viscosity. In vitro tolerance assays were performed on macrophage, human corneal and conjunctival cell lines at short and long term exposures. In vivo ocular tolerance was studied after instillation of the formulation. Results: The mean liposome size was less than 1 µm and surface tension <30 mN/m for all formulations. The final liposomal formulation (PC:cholesterol:vit E in a ratio 8:1:0.8) had physiological values of pH (6.45 ± 0.09), osmolarity (289.43 ± 3.28 mOsm), and viscosity (1.82 ± 0.02 mPa?s). Cell viability was greater than 80% in the corneal and conjunctival cells. This formulation was well tolerated by experimental animals. Conclusions: The unpreserved liposomal formulation has suitable properties to be administered by topical ophthalmic route. The liposome-based artificial tear had good in vitro and in vivo tolerance responses. This formulation composed of a combination of liposomes and bioadhesive polymers may be employed successfully as a tear film substitute in DE therapy.
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The tarsal bone test: a basic test of health sciences students' knowledge of lower limb anatomy.
Biomed Res Int
PUBLISHED: 07-08-2014
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The aim of the present study was to design an easy-to-use tool, the tarsal bone test (TBT), to provide a snapshot of podiatry students' basic anatomical knowledge of the bones of the lower limb.
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Angular position of the cleat according to torsional parameters of the cyclist's lower limb.
Clin J Sport Med
PUBLISHED: 01-24-2014
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The aim of this work was to study the relationship of torsional and rotational parameters of the lower limb with a specific angular position of the cleat to establish whether these variables affect the adjustment of the cleat.
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Evaluation of the efficacy, safety, and acceptability of an eyelid warming device for the treatment of meibomian gland dysfunction.
Clin Ophthalmol
PUBLISHED: 01-01-2014
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Meibomian gland dysfunction (MGD) is widespread and has significant impact on patients' quality of life. Eyelid hygiene is the mainstay of treatment but is unstandardized and requires commitment from the patient and encouragement from the ophthalmologist. Blephasteam(®) is an eyelid warming device designed to be an easy-to-use and standardized treatment for MGD. In the present study, 73 patients were treated for 21 days with twice daily Blephasteam(®) sessions. The primary efficacy variable, a symptomatology visual analog scale score, declined from 63.07±21.23 (mean ± standard deviation) on day 0 to 41.90±25.49 on day 21. There were also improvements in a number of secondary efficacy variables including subjective ocular symptoms and clinical signs and symptoms of MGD and dry eye, though tear film breakup time and tear osmolarity were not improved. Global efficacy was assessed as satisfactory or very satisfactory in 83.8% of cases. Patient-reported subjective ocular symptoms declined during the study, and a majority of patients rated the efficacy of Blephasteam(®) as satisfactory or very satisfactory. Most patients found the device comfortable and were able to continue with normal activities (reading, watching TV, using a computer) during the Blephasteam(®) session. No safety or tolerability issues were identified.
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Normal values of metatarsal parabola arch in male and female feet.
ScientificWorldJournal
PUBLISHED: 01-01-2014
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There is not any method to measure metatarsal protrusion in the whole metatarsal. The aim of this research is to know the normal metatarsal parabola in male and female feet. The system of measurement devised by Hardy and Clapham to evaluate the protrusion between metatarsals I and II was adapted to study the whole metatarsal parabola and applied to the five metatarsals of 169 normal feet, 72 female feet and 97 male feet. Authors measured all metatarsal protrusion relative to metatarsal II. The results obtained show a female metatarsal protrusion relative to metatarsal II of +1.27% for metatarsal I, -3.36% for metatarsal III, -8.34% for metatarsal IV, and -15.54% for metatarsal V. Data obtained for male metatarsal parabola were +0.5% for metatarsal I, -3.77 for metatarsal III, -9.57 for metatarsal IV, and -17.05 for metatarsal V. Differences between both metatarsal parabola were significant.
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Comparison of the in vitro tolerance and in vivo efficacy of traditional timolol maleate eye drops versus new formulations with bioadhesive polymers.
Invest. Ophthalmol. Vis. Sci.
PUBLISHED: 01-01-2011
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To assess the in vitro tolerance and in vivo efficacy of new unpreserved formulations of timolol maleate (TM) in aqueous solutions of bioadhesive polymers used for dry eye treatment and to compare them with three traditional TM formulations: unpreserved Timabak (Thea, Madrid, Spain), benzalkonium chloride (BAK)-preserved Timoftol (Frosst Laboratories, Madrid, Spain), and BAK-preserved Timolol Sandoz (Frosst Laboratories).
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One-year results of excimer laser in situ keratomileusis for hyperopia.
J Cataract Refract Surg
PUBLISHED: 03-01-2009
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To evaluate the visual and refractive results of hyperopic LASIK.
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Intrastromal corneal ring segment implantation for high astigmatism after penetrating keratoplasty.
J Cataract Refract Surg
PUBLISHED: 02-19-2009
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To evaluate the safety and efficacy of intracorneal ring segments (ICRS) for high astigmatism after penetrating keratoplasty (PKP).
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Recent patents and developments in glaucoma biomarkers.
Recent Pat Endocr Metab Immune Drug Discov
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Glaucoma is an eye condition mainly developed from an excessive intraocular pressure. The condition tends to be inherited and may not show up until later in life. The increased pressure, can damage the optic nerve, provoking loss of vision. Without treatment, glaucoma can cause blindness within a few years; consequently glaucoma has to be diagnosed before long-term visual loss occurs. If it is diagnosed and treated early, the disease can be controlled. Usually, the patient does not notice any early symptoms or pain from this increased pressure, so the early diagnosis is problematic. Over half of the patients with glaucoma are unaware they have this blinding disease and by the time they are diagnosed, they already have irreversibly lost approximately 30-50% of their retinal ganglion cells. Glaucoma diagnosis is currently based on specific signs of the disease, characteristic optic nerve head changes and visual field loss. Thus, improved methods for early diagnosis of glaucoma are needed. Molecular genetics are valuable for the understanding the pathophysiology and cure of glaucoma, but still are not widely used for its diagnosis. Genetic studies on glaucoma have revealed many genes and chromosomal loci associated to glaucoma. Consequently, a better understanding of the molecular mechanisms underlying glaucoma is required to obtain early diagnosis and avoid potential disease progression. In this article, we revise the patents and the corresponding literature on the latest developments and approaches in glaucoma diagnosis, using mainly molecular genetics.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.