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Topic: Vitreous humor

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	Vitreous humour - Wikipedia, the free encyclopedia
		Vitreous humour (British spelling) or Vitreous humor (U.S. spelling) is the clear aqueous solution that fills the space between the lens and the retina of the vertebrate eyeball.
		The primary purpose of the vitreous humour is to provide a cushioned support for the rest of the eye, as well as a clear unobstructed path for light to travel to the retina.
		The metabolic exchange and equilibration between systemic circulation and vitreous humor is so slow that vitreous humor is sometimes the fluid of choice for postmortem analysis of glucose levels or substances which would be more rapidly diffused, degraded, excreted, or metabolized from the general circulation.
	en.wikipedia.org /wiki/Vitreous_humor (286 words)

	The Vitreous Humor
		The vitreous humor is a clear gel which occupies the posterior compartment of the eye, located between the crystalline lens and the retina and occupying about 80% of the volume of the eyeball.
		The flashes of light occur as the vitreous tugs on the sensory layer of the retina as the vitreous is detaching.
		As a posterior vitreous detachment (PVD) occurs—that is, as the vitreous fluid separates from the retina—organic debris or particles known as “floaters” are released.
	www.tedmontgomery.com /the_eye/vitreous.html (854 words)

	Vitreous humor tamponade for the posterior cavity in an eye - Patent 5441989
		A vitreous humor tamponade for the posterior cavity in an eye, including at least one perfluorocarbon which is liquid under normal conditions and which after injection in the eye changes into the vapor condition as a result of its vapor pressure.
		The high degree of mobility of the incomplete tamponade relative to the rest of the vitreous humor, of gel nature, induces vitreo-retinal stresses which in between 10 and 24% of cases induce secondary retinal holes mostly in the lower circumference (Freeman et al, 1988).
		The vitreous humor tamponade according to the present invention means that there is no need for the vitreous humor to be removed by suction beforehand (vitrectomy in accordance with Machemer, 1971).
	www.freepatentsonline.com /5441989.html (2223 words)

	Gray, Henry. 1918. Anatomy of the Human Body. Page 1018
		In the fetus, a small vessel, the arteria hyaloidea, passes forward as a continuation of the arteria centralis retinæ through the vitreous humor to the posterior surface of the capsule of the lens.
		In the center of the vitreous body, running from the entrance of the optic nerve to the posterior surface of the lens, is a canal, the hyaloid canal, filled with lymph and lined by a prolongation of the hyaloid membrane.
		This canal, in the embryonic vitreous body, conveyed the arteria hyaloidea from the central artery of the retina to the back of the lens.
	www.bartleby.com /107/pages/page1018.html (801 words)

	eMedicine - Hemorrhage, Vitreous : Article Excerpt by: Brian A Phillpotts, MD (Site not responding. Last check: 2007-11-03)
		The vitreous body is bounded posterolaterally by the internal limiting membrane of the retina, anterolaterally by the nonpigmented epithelium of the ciliary body, and anteriorly by the lens zonular fibers and posterior lens capsule.
		Prior to pars plana vitrectomy, the removal of nonclearing vitreous hemorrhage was attempted by excising vitreous gel through the pupillary aperture using cellulose sponges and scissors via a corneoscleral incision, which was coined “open-sky” vitrectomy by Kasner.
		The content of the vitreous is 99% water, and the remaining 1% mostly is composed of collagen and hyaluronic acid.
	www.emedicine.com /oph/byname/hemorrhage-vitreous.htm (624 words)

	Eye Conditions > Vitreous Hemorrhage -- EyeMDLink.com
		Vitreous hemorrhage is a condition of intraocular (inside the eye) bleeding that usually presents with sudden vision loss, frequently with complaints of floaters or "spots" in the vision.
		Occasionally, bleeding from the iris (in the front of the eye) results in the presence of blood in the vitreous humor.
		Posterior vitreous separation (separation of the vitreous humor from the retina), common in the middle-aged and elderly, occasionally produces a torn retinal vessel, and therefore a vitreous hemorrhage.
	www.eyemdlink.com /Condition.asp?ConditionID=506 (246 words)

	Inflammatory mediators in the vitreous humor of AIDS patients with retinitis.
		Vitreous humor from 10 AIDS patients had measurable levels of interleukin-2 in three of nine samples, gamma interferon in six of nine samples, C3a and C4a in all ten samples, and C5a in only one of ten samples.
		Vitreous humor from group 1 did not differ significantly from vitreous from group 2.
		Viral retinitis is associated with the presence of lymphokines in vitreous humor.
	www.aegis.com /aidsline/1990/aug/M9080219.html (506 words)

	Pharmacokinetics of Sparfloxacin in the Serum and Vitreous Humor of Rabbits: Physicochemical Properties That Regulate ...
		vitreous humor was 59.4% ± 12.2% of that in serum.
		The effects of infection and probenecid on the transport of carbenicillin from the rabbit vitreous humor.
		Pharmacokinetics of amikacin and chloramphenicol in the aqueous humor of rabbits.
	aac.asm.org /cgi/content/full/42/6/1417 (4424 words)

	USE OF OCULAR FLUIDS AND RETINA IN POSTMORTEM ANALYSIS (Site not responding. Last check: 2007-11-03)
		Also, the use of vitreous humor to estimate the antemortem calcium and sodium serum concentrations has had mixed reports.
		Some studies report that both are stable in the vitreous humor and substantially reflect the serum concentrations, while others dispute this.
		Vitreous humor can be collected in large animals with the use of a 16 to 21 ga needle attached to a 10 ml syringe. In small animals, the smaller gauge needle and a smaller syringe may be used. The needle is inserted through the sclera 1 cm caudal to the limbus(corneoscleraljunction).
	www.addl.purdue.edu /newsletters/1995/occular.shtml (503 words)

	eMedicine - Hemorrhage, Vitreous : Article by Brian A Phillpotts, MD (Site not responding. Last check: 2007-11-03)
		Terson syndrome is subarachnoid hemorrhage associated with vitreous bleeding caused by rupture of retinal venules and/or capillaries as a result of a sudden increase in intracranial pressure (which is transmitted to the retinal vasculature via the optic nerve).
		The vitreous hemorrhage-induced glaucoma is secondary to the blockade of the trabecular meshwork by formed ghost cells due to long-standing blood cells in the vitreous.
		Similarly, vitreous hemorrhage within the space between the internal limiting and the nerve fiber layer may resemble that within the retrohyaloid space, except that the blood does not shift with change in the head position as may be the case with subhyaloid hemorrhage.
	www.emedicine.com /oph/topic421.htm (3374 words)

	ISTA :: Products :: Vitrase for Vitreous Hemorrhage & Diabetic Retinopathy
		The immediate consequence of a vitreous hemorrhage is a reduction in the amount of light that can pass through the normally clear vitreous humor to the retina.
		to cause a detachment of the vitreous humor from the retina and the impact on slowing the progression of diabetic retinopathy over a one-year period.
		NDA for the treatment of vitreous hemorrhage and for use as a spreading agent, the successful completion of any additional clinical trials for the diabetic retinopathy indication and the continuing assessment of the market opportunity for this indication as compared to other product opportunities we may be pursuing at the time.
	www.istavision.com /research/products_vitrase.asp (987 words)

	Rollin, Mol Vis 2004; 10:450-457.
		Since plasma and vitreous ANP concentrations were found to be unrelated, we suggest intraocular ANP synthesis and/or an increase in the release of ANP into the vitreous, as opposed to diffusion from the blood, as the main factors contributing to the high vitreous ANP levels observed in diabetic patients.
		Undiluted vitreous humor samples were collected at the time of vitreoretinal surgery by using a syringe attached to an automated vitrector before starting the intravitreal infusion of balanced salt solution.
		Vitreous ANP levels were highest in diabetic patients with active PDR (median 60.5 pg/ml, range 57.60-68.5 pg/ml; n=19), followed by diabetic patients with quiescent PDR (median 43.20 pg/ml, range 41.50-45.00 pg/ml; n=3) and those with diabetes without PDR (median 23.1 pg/ml, range 22.10-25.05 pg/ml; n=28) and controls (median, 15.6 pg/ml, range 14.75-16.8 pg/ml; n=29).
	www.molvis.org /molvis/v10/a57 (4860 words)

	HerbChina2000.com - Herbal Remedies - Vitreous hemorrhage
		The condition is not due to bleeding of the vitreous humor, but rather bleeding from the retinal vessels or underlying choroid (layer of capillaries beneath the retina) in most cases.
		Unfortunately, the blood vessels that grow in response to this chemical are abnormal - they grow from the retina into the vitreous gel and may bleed causing a vitreous hemorrhage.
		Patients with acute vitreous hemorrhage frequently seek emergency care because the loss of vision is dramatic.
	www.herbchina2000.com /therapies/XTH.shtml (1023 words)

	Medical Humor(s) - Health and Medical Information produced by doctors - MedicineNet.com
		The aqueous humor and the vitreous humors are fluids within the eye.
		The aqueous humor is the watery fluid normally present in the chambers of the eye around the iris while the vitreous humor is the "glassy" fluid behind the lens in the eyeball.
		The humors (humours, in England) originated in an ancient theory that held that health came from a balance between the bodily liquids.
	www.medicinenet.com /script/main/art.asp?articlekey=6836 (446 words)

	Retinal Cell Biology Lab Abstracts
		When vitreous humor comes in contact with human RPE cells, the latter undergo an epithelial to mesenchymal transition similar to that which occurs in proliferative vitreoretinopathy.
		When vitreous humor comes in contact with human RPE cells, the latter undergo an epithelial to mesenchymal transition in a manner similar to that which occurs in vivo in proliferative vitreoretinopathy.
		The changes in mobility and shape suggest that cell surface adhesion molecules may be altered as a result of the contact with vitreous humor and the synthesis of these proteins was therefore investigated.
	pathmicro.med.sc.edu /retab.htm (3012 words)

	Humor definition - Medical Dictionary definitions of popular medical terms
		Thus, the aqueous humor is the fluid normally present in the front and rear chambers of the eye.
		The humors ran through an ancient theory that held that health came from balance between the bodily liquids.
		The humors have been dispelled, except for the aqueous humor and vitreous humor of the eye.
	www.medterms.com /script/main/art.asp?articlekey=3816 (193 words)

	IngentaConnect Bacterial Growth in Human Vitreous Humor (Site not responding. Last check: 2007-11-03)
		The aim of this study was to investigate the capacity of human vitreous to support bacterial growth and to show differences in the growth kinetics of gram-positive and gram-negative bacteria.
		Vitreous gel of 70 keratoplasty donor eyes was sampled under sterile conditions, screened microscopically for cellular components and tested for sterility and levels of antibiotic drugs by bio-assay.
		Vitreous gel did not support bacterial growth; the tested strains could not be recovered after 48 hr.
	www.ingentaconnect.com /content/ap/ey/1997/00000065/00000006/art00385 (266 words)

	ISTA :: Conditions :: Vitreous Hemorrhage
		A vitreous hemorrhage occurs when retinal blood vessels rupture and bleed into the vitreous humor.
		Because of the absence of a validated and generally accepted medical definition of the various densities of vitreous hemorrhage, we classify a vitreous hemorrhage as either mild, moderate or severe depending on the density of the vitreous hemorrhage as observed by the physician:
		Based on data compiled by Business Genetics, we commissioned in February 1999, we believe that approximately 450,000 cases of vitreous hemorrhage occur each year in the United States, a total of 400,000 cases occur each year in the five largest European markets and 190,000 cases occur each year in Japan.
	www.istavision.com /conditions/conditions_vitreous.asp (557 words)

	www.myspace.com/thevitreoushumor
		Vitreous Humor formed in Topeka, KS, when the band's core members — Danny Pound, Dan Benson, and Brad Allen — were barely old enough to drive.
		The closest the band would come to releasing a proper CD was 1995's The Vitreous Humor Self-Titled E.P., a seven-song stew of late-'70s no wave clarity and early-'90s angst.
		I heard Vitreous Humor first on the Don't Forget to Breathe compilation, The Whisper Twins.
	www.myspace.com /thevitreoushumor (836 words)

	Posterior vitreous detachment - Wikipedia, the free encyclopedia
		A posterior vitreous detachment (PVD) is an ocular condition in which there is a separation of the vitreous humor from the retina.
		Over time the vitreous changes, shrinking and developing pockets of liquefaction, similar to the way a gelatin dessert shrinks, or detaches, from the edge of a pan over time.
		When a posterior vitreous detachment occurs, there is also the possibility of a tear in the retina.
	en.wikipedia.org /wiki/Posterior_vitreous_detachment (352 words)

	Evaluation of Fibroblast Growth Factor Signaling during Lens Fiber Cell Differentiation -- Huang et al. 44 (2): 680 -- ...
		FGFs or vitreous humor, in the presence or absence of the FGF
		There was a modest increase in TUNEL staining in the cells treated with control and a substantial increase in cell treated with heparin-depleted vitreous humor, compared with the number of TUNEL-stained cells at 5 hours of culture.
		The extent of increase was lower in heparin-depleted vitreous humor.
	www.iovs.org /cgi/content/full/44/2/680 (7528 words)

	A.Word.A.Day -- vitreous
		The vitreous humor, or vitreous, is the glassy clear sticky material within the eye.
		During some types of retinal surgery, the vitreous is removed (a vitrectomy) and replaced with saline solution, with seemingly no ill effect in most cases.
		"Vitreous" also means "glassy" in a non-medical sense, from which we get vitrine, vitriol, vitriolic, and vitrescent.
	www.wordsmith.org /words/vitreous.html (237 words)

	Pharmacokinetics of ofloxacin in serum and vitreous humor of albino and pigmented rabbits -- Perkins et al. 39 (7): ...
		Pharmacokinetics of ofloxacin in serum and vitreous humor of albino and pigmented rabbits -- Perkins et al.
		the vitreous humor and serum samples were assayed by high-pressure liquid
		and vitreous humor of 2.64 and 4.32 h, respectively.
	aac.asm.org /cgi/content/abstract/39/7/1493 (382 words)

	VITREOUS HUMOR
		Topeka, Kansas' Vitreous Humor was founded so long before anyone ever heard of them that it is almost embarrassing.
		They went through several bass players (Darren, Rob, Wally, Greg) until finally Brad decided to play the bass himself in 1993 and changed the group's lineup from a quartet to a trio.
		In the summer of 1994, Brooks joined the band and Vitreous Humor developed the new sounds that they wanted to make with a wonderful interplay and a more complex dynamic between the instruments.
	www.crankthis.com /vitreoushumor.html (232 words)

	Aqueous and vitreous humor samples for the diagnosis of cytomegalovirus retinitis.
		Aqueous and vitreous humor samples for the diagnosis of cytomegalovirus retinitis.
		Two patients had the acquired immunodeficiency syndrome (AIDS) in whom different herpesviruses were detected in aqueous and vitreous fluids from the involved eye.
		RESULTS/CONCLUSIONS: In both patients dual viral infections were present and the application of polymerase chain reaction-based methods to ocular fluids made a useful contribution to the treatment of the patients.
	www.aegis.com /aidsline/1995/nov/M95B0283.html (337 words)

	vitreous humor definition - Dictionary - MSN Encarta
		vitreous humor definition - Dictionary - MSN Encarta
		Search for "vitreous humor" in all of MSN Encarta
		fluid in gel filling eye: the fluid component of the gel vitreous body that fills the main cavity of the eye between the lens and the retina
	encarta.msn.com /dictionary_1861734411_1861734411/nextpage.html (101 words)

	Vitreous Humor 7 inch
		Coincidentally, it was Vitreous Humor's first ever release.
		This three song 7inch brings us back to the day when Danny, Dan and Brad were but young lads, influenced by such Brit pop icons as The Stone Roses.
		Kind of like a Shoe-Gazer-outta-Kansas type thing with the distinct and incredible Vitreous Humor songwriting.
	www.crankthis.com /crc000.html (63 words)

	Vitreous Humor cds, vinyl records and music albums (via CobWeb/3.1 planetlab1.netlab.uky.edu) (Site not responding. Last check: 2007-11-03)
		Vitreous Humor cds, vinyl records and music albums (via CobWeb/3.1 planetlab1.netlab.uky.edu)
		Find rare vitreous humor cds and hard to find vitreous humor records and CD singles at MusicStack.
		Let us help you find the out of print vitreous humor music you have been looking for.
	www.musicstack.com.cob-web.org:8888 /search/vitreous+humor (130 words)

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