Biomaterial Database

[Effect of lead and tetraethyl lead poisoning on the microcirculatory bed of the conjunctiva of the eye]. 1985

I F Gogina

The ultrastructure of the bulbar conjunctiva bioptates have been studied in 12 persons suffering from lead intoxication (saturnism), 2-from tetraethyl-lead (TEL) intoxication and 3-are practically healthy persons; they make the control group. In all the patients manifested disturbances in the microcirculatory bed of the bulbar conjunctiva are revealed, the general character being identical at saturnism and TEL-intoxication. The main changes are observed in the wall of the blood microvessels: destruction of the endothelial lining up to revealing the basal membrane with adhesion of the blood formed elements and their diapedesis. This results in disorders of vascular permeability, in edema of the perivascular space and in appearance of cells and cellular detritus in it. An essential role in morphogenesis of the vascular disturbances produced by intoxication play certain rheological imparements: sludge-syndrome and microthrombosis. They produce certain distrophic changes.

UI	MeSH Term	Description	Entries
D007855	Lead Poisoning	Poisoning that results from chronic or acute ingestion, injection, inhalation, or skin absorption of LEAD or lead compounds.	Poisoning, Lead,Lead Poisonings,Poisonings, Lead
D008297	Male		Males
D008833	Microcirculation	The circulation of the BLOOD through the MICROVASCULAR NETWORK.	Microvascular Blood Flow,Microvascular Circulation,Blood Flow, Microvascular,Circulation, Microvascular,Flow, Microvascular Blood,Microvascular Blood Flows,Microvascular Circulations
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009942	Organometallic Compounds	A class of compounds of the type R-M, where a C atom is joined directly to any other element except H, C, N, O, F, Cl, Br, I, or At. (Grant & Hackh's Chemical Dictionary, 5th ed)	Metallo-Organic Compound,Metallo-Organic Compounds,Metalloorganic Compound,Organometallic Compound,Metalloorganic Compounds,Compound, Metallo-Organic,Compound, Metalloorganic,Compound, Organometallic,Compounds, Metallo-Organic,Compounds, Metalloorganic,Compounds, Organometallic,Metallo Organic Compound,Metallo Organic Compounds
D002199	Capillary Permeability	The property of blood capillary ENDOTHELIUM that allows for the selective exchange of substances between the blood and surrounding tissues and through membranous barriers such as the BLOOD-AIR BARRIER; BLOOD-AQUEOUS BARRIER; BLOOD-BRAIN BARRIER; BLOOD-NERVE BARRIER; BLOOD-RETINAL BARRIER; and BLOOD-TESTIS BARRIER. Small lipid-soluble molecules such as carbon dioxide and oxygen move freely by diffusion. Water and water-soluble molecules cannot pass through the endothelial walls and are dependent on microscopic pores. These pores show narrow areas (TIGHT JUNCTIONS) which may limit large molecule movement.	Microvascular Permeability,Permeability, Capillary,Permeability, Microvascular,Vascular Permeability,Capillary Permeabilities,Microvascular Permeabilities,Permeabilities, Capillary,Permeabilities, Microvascular,Permeabilities, Vascular,Permeability, Vascular,Vascular Permeabilities
D003228	Conjunctiva	The mucous membrane that covers the posterior surface of the eyelids and the anterior pericorneal surface of the eyeball.	Bulbar Conjunctiva,Palpebral Conjunctiva,Plica Semilunaris of Conjunctiva,Plicae Semilunares of Conjunctiva,Tunica Conjunctiva,Conjunctiva, Bulbar,Conjunctiva, Palpebral,Conjunctivas
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults