(1) Flow cytometric DNA analysis was performed on both fresh and on paraffin embedded samples obtained by gastroscopic biopsies in 5 patients with histologically normal gastric mucosa (20 specimens) and by radical gastrectomies in 9 cases of human gastric cancer (36 specimens).
(2) Biotin-avidin immunoperoxidase analysis for hCG was performed on all paraffin blocks containing carcinoma-in-situ, grade I, grade II, and grade III transitional cell carcinoma.
(3) Using an antibody to the nerve growth factor receptor (NGFR), we examined dendritic reticulum cells (DRCs) immunohistochemically in 62 formalin-fixed, paraffin-embedded lymph nodes from patients with reactive follicular hyperplasia or with various types of lymphoma.
(4) In contrast, in paraffin as well as in frozen sections of chick oviduct, fixed by immersion or in vapor, PR was exclusively nuclear, including in the absence of progesterone, and the intensity of immunostaining was not modified by progesterone treatment.
(5) Using a silver staining technique (AgNOR technique), we have investigated the nucleolar organizer-associated proteins (NORs) in formalin-fixed paraffin embedded conjunctival specimens of 15 intraepithelial squamous carcinomas, 10 hyperplastic-dysplastic samples and 10 control epithelial fragments; the mean number of intranuclear black dots was determined for each case.
(6) This study shows that the sensitivity and specificity of in situ hybridisation for the detection of EBV genomes in AIDS related lymphomas approaches that of Southern blotting, even when using routinely processed archival, paraffin wax embedded material.
(7) Formalin-fixed, paraffin-embedded tissue was processed by the avidin-biotin complex method.
(8) This is the first report of anti-CD34 staining of acute leukemia in paraffin-embedded sections.
(9) The routine study of bone marrow trephine biopsies involves fixation, decalcification, paraffin-embedment, sectioning and staining.
(10) Paraffin sections (8 microns) containing the medial habenular nucleus were stained with cresyl violet and both left and right medial habenular nuclei were measured by planimetry.
(11) Formalin-fixed, paraffin-embedded tissue samples of canine amelanotic melanomas and normal canine tissues were studied immunohistochemically for the presence of S100 protein.
(12) Histological sections of formalin-fixed, paraffin-embedded tissue comprising 60 surgical specimens of human lung carcinoma were Feulgen stained.
(13) Urothelial cells were pepsin-extracted from paraffin-embedded specimens taken from human nontumorous bladder mucosa, dysplasia, and carcinoma in situ.
(14) Pieces of spleen of both groups were fixed in formalin and embedded in paraffin.
(15) Both methods, which are applicable to paraffin sections, were developed and validated in breast carcinomas with known ER content.
(16) We conclude that there appears to be no benefit from exceeding a concentration of 5% crude coal tar in yellow soft paraffin in the treatment of patients with psoriasis and that the plateau in the dose-response curve for the action of crude coal tar in psoriasis begins at a point between 1 and 5%.
(17) Mycobacterium avium-intracellulare (MAI) can utilize paraffin wax as the sole carbon source in basal media.
(18) Following biotinylation, it was used to detect mannose-specific binding sites in fixed cells of seven human leukemia or lymphoma lines and in fixed, paraffin-embedded sections of human breast cancer.
(19) The parotid saliva of the caries-rampant group showed a significantly higher level of anodemigrating proteins, predominantly isoamylases, and a significantly lower level of cathode-migrating proteins than that of the caries-resistant group in both paraffin-stimulated and sour lemon-stimulated salivary flows.
(20) Ten tissue sections from 10 examples of Bowen's disease were excised from paraffin blocks, rehydrated, and incubated in 90% formic acid at 45 degrees C for 18 h. The epidermis was gently removed with the aid of a dissecting microscope, and the remaining dermis with attached basal lamina was processed for scanning electron microscopy.
Petroleum
Definition:
(n.) Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at certain points, exists in the upper strata of the earth, from whence it is pumped, or forced by pressure of the gas attending it. It consists of a complex mixture of various hydrocarbons, largely of the methane series, but may vary much in appearance, composition, and properties. It is refined by distillation, and the products include kerosene, benzine, gasoline, paraffin, etc.
Example Sentences:
(1) This paper reviews the epidemiologic studies of petroleum workers published in the English language, focusing on research pertaining to the petroleum industry, rather than the broader petrochemical industry.
(2) Case mothers were more likely to report occupational exposure to metals (odds ratio [OR] = 8.0, P = 0.01), petroleum products (OR = 3.7, P = 0.03), and paints or pigments (OR = 3.7, P = 0.05).
(3) Therefore, the presence on a refinery site of a carcinogen other than petroleum has not been ruled out, and further study is urged.
(4) Onerous new regulations could threaten the shale energy revolution, America’s role as a global energy superpower, and the dramatic reductions in CO2 emissions made possible by an abundant and affordable domestic supply of clean-burning natural gas,” Jack Gerrard, president of the American Petroleum Institute, said in a statement.
(5) In forest, removal of olfactory substances from the human skin, by vigorous washing and application of petroleum jelly, or by wearing impermeable clothing, greatly reduced the numbers of flies attracted.
(6) Likewise, greater occupational exposure to chemicals (paint, petroleum products, and unspecified chemicals) during pregnancy was found for mothers of patients (RR = 2.4, 95% CI = 1.2-4.6).
(7) Experimental controlled ecosystems have provided essential information about the fate of petroleum at sea.
(8) A proprietary insecticidal mulesing powder containing diazinon and an experimental liquid dressing based on eucalyptus oil, naphthalene, cresylic acid and chlorfenvinphos in a carrier of liquid hydrocarbons and petroleum oil were compared for their ability to promote wound healing and reduce the incidence of fly strike in freshly mulesed lambs.
(9) Extraction with petroleum ether-chloroform-phenol yielded a protein fraction free of detectable lipopolysaccharide, in which group 3 OMPs (28,500 apparent molecular weight [28.5K], 27.0K, and 25.5K) represented 81% of the total.
(10) Interestingly, however, various fractions--especially those extracted by organic solvents such as petroleum ether, hexane, and chloroform, as well as some purified compounds from these plants--could strongly inhibit the mutagenicity of aflatoxin B1 (AFB1), an indirect mutagen, when tested in the presence of S-9 mix but not that of 2-(2-furyl)-3-(5-nitro-2-furyl)acrylamide (AF-2), which does not require metabolic activation for its mutagenicity.
(11) BP would need to bring equipment from Texas to contain South Australia oil spill Read more BP plans to drill the first of four exploratory wells off the South Australian coast next year and submitted an environmental plan (pdf) for approval to the National Offshore Petroleum Safety and Environmental Management Authority last week.
(12) The nature of organic substance appearing in the petroleum stratum is discussed.
(13) In this chapter the authors examine the toxicologic and epidemiologic literature for a broad range of petroleum-derived products in order to assess the carcinogenic potential of these compounds.
(14) Unlike aspiration pneumonitis, which follows petroleum distillate ingestion, chemical pneumonitis from pine oil cleaner may occur from gastrointestinal absorption of pine oil and deposition in lung tissue.
(15) Mutagenicity, polynuclear aromatic compound content, and skin carcinogenicity were compared for a series of complex oil mixtures derived from the refining and processing of petroleum.
(16) Serum samples were extracted with petroleum ether following precipitation of proteins with ethanol.
(17) BP credit rating downgraded after Tony Hayward's grilling by Congress 19 June One of BP's partners, Anadarko Petroleum, refuses to accept any responsibility for the Deepwater Horizon explosion despite owning a quarter of the well.
(18) In the past, the Saudis have encouraged Opec (Organisation of the Petroleum Exporting Countries) to reduce its output targets during periods of low oil prices.
(19) We report the case of a child who sustained partial thickness burns from a garlic-petroleum jelly plaster, which had been applied at the direction of a naturopathic physician.
(20) The extraction of carotenes with petroleum ether under the same conditions does not change the electrophoretic mobility of the chlorophyll-protein complexes.