Sentences with word «pyrene»

Perera and Weinstein detected the benzo [a] pyrene adduct in some of the cancer patients but not in the control group.

Some tributes to Haridimos at Les caves de Pyrene...

These experimental measurements, coupled with Mebel's theoretical calculations, helped researchers to see the intermediate steps of the chemistry at play and to confirm the production of pyrene in the reactions.

Kaiser added, «Future studies could study how to create even larger chains of ringed molecules using the same technique, and to explore how to form graphene from pyrene chemistry.»

A new study shows chemical steps for how pyrene, a type of hydrocarbon found in some meteorite samples, could form in space.

A reaction pathway that can form a hydrocarbon called pyrene through a chemical method known as hydrogen - abstraction / acetylene - addition, or HACA, is shown at the top.

They measured the amount of benzo [a] pyrene bound to DNA — a biological marker for PAHs — in the mothers» blood at the time of birth.

The atomic structure of pyrene molecules (upper left and upper right) are represented in an artist's rendering of an asteroid belt, with carbon atoms shown in black and hydrogen atoms in white.

Pyrene belongs to a family known as polycyclic aromatic hydrocarbons, or PAHs, that are estimated to account for about 20 percent of all carbon in our galaxy.

At bottom, some possible steps by which pyrene can form more complex hydrocarbons via HACA (red) or another mechanism (blue) called hydrogen abstraction — vinylacetylene addition (HAVA).

Experiments at Berkeley Lab are helping to retrace the chemical steps by which complex hydrocarbons like pyrene could form in the Murchison meteorite and other meteorites.

A dash of pyrene added to a low concentration of alpha - pinene yields aerosols that are five times the mass, and 200 times as many, than that produced by alpha - pinene alone.

The p38 - mediated p53 phosphorylation at Ser15 and subsequent p53 induction has been reported to be responsible for apoptosis induced by nitric oxide, hypoxic conditions, DNA - damaging agents, 1 - nitropyrene, and benzo [a] pyrene [30 - 32].

UK About Blog Les Caves de Pyrene is an importer, agent,, distributor and retailer of many wines around the world.

Mebel's work showed how pyrene (a four - ringed molecular structure) could develop from a compound known as phenanthrene (a three - ringed structure).

Experiments at Berkeley Lab's Advanced Light Source reveal how a hydrocarbon called pyrene could form near stars.

Indole -3-carbinol in the maternal diet provides chemoprotection for the fetus against transplacental carcinogenesis by the polycyclic aromatic hydrocarbon dibenzo [a, l] pyrene.

Researchers found that the same heated chemical processes that give rise to the formation of pyrene are also relevant to combustion processes in vehicle engines, for example, and the formation of soot particles.

Cooking protein - rich food at high temperatures, such as broiling or barbecuing meats, can lead to the formation of many potent carcinogens that are comparable to those found in cigarrette smoke (i.e., benzo [a] pyrene).

In 1981 the National Institute of Environmental Health Sciences declared that benzo [a] pyrene was «reasonably anticipated» to cause cancer in humans.

While at the NRDC, Perera became interested in a hydrocarbon compound called benzo [a] pyrene, or B [a] P for short.

The classic PAH is benzo (a) pyrene, which was one of the first substances shown to be able to cause cancer.

Pallas also serves as one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, O3 and other air pollutants as required by the European legislation on ambient air quality assessment and management.

The latest study, which featured experiments at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), could help explain the presence of pyrene, which is a chemical compound known as a polycyclic aromatic hydrocarbon, and similar compounds in some meteorites.

Pyrene has a molecular structure composed of 16 carbon atoms and 10 hydrogen atoms.

«Starting off from simple gases, you can generate one - dimensional and two - dimensional structures, and pyrene could lead you to 2 - D graphene,» Ahmed said.

Fluoranthene enhances p53 expression and decreases mutagenesis induced by benzo [a] pyrene.

(A) Cells were treated with ActD (3, 10, 30, and 100 nM) and benzo [a] pyrene (BaP)(10 μM) for 6 h. (B) The PI3K inhibitors, (LY294002 (10 μM) and wortmannin (10 μM)-RRB-, MEK1 / 2 inhibitor (PD98059, 10 μM), JNK inhibitor (SP600125, 50 μM), and p38 MAPK inhibitor (SB203580, 25 μM) were applied.

Aldo - keto reductase 1C2 is essential for 1 - nitropyrene's but not for benzo [a] pyrene's induction of p53 phosphorylation and apoptosis.

Pallas is one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, ozone and other air pollutants, as required by the European legislation on ambient air quality.

The benzo [a] pyrene (BaP)- induced p53 expression was used as a positive control, and the blue fluorescence dye, Hoechst 33342, revealed the location of the nuclei.

The researchers concluded that the results support the hypothesis that the carcinogenicity of mate may be related to its polycyclic aromatic hydrocarbons (PAH) content, including known carcinogens, such as benzo [a] pyrene (5).

Lesca, P: Protective effects of ellagic acid and other plant phenols on benzo (a) pyrene - induced neoplasia in mice.

Chang, RL, Hùang, MT; Wood, AW; Wong, CQ; Newmark, HL; Yagi H; Sayer, JM; Conney, AH: Effect of ellagic acid and hydroxylated flavonoids on the tumorigenicity of benzo (a) pyrene and -LRB-»)-78 ß,8a - dihydroxy - 9a, 10 a - epoxy -7,8,9,10-tetrahydrobenzo (a) pyrene on mouse skin and in the newborn mouse.

UK About Blog Les Caves de Pyrene is an importer, agent,, distributor and retailer of many wines around the world.

The Esterri Park Hotel is ideally located in the tourist village of Esterri d'Àneu, in the heart fo the Pyrene Mountains.Perfect for both natural and open - air sports lovers, this cosy hotel is the ideal accommodation for a budget holiday in this beatiful county.

It's similar to the tobacco debate — once people came up with clear evidence of tobacco smoke components, such as benzo (a) pyrene, forming complexes with DNA and damaging gene replication, there was really nothing to say.

Pallas is one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, ozone and other air pollutants, as required by the European legislation on ambient air quality.

According to the government, pyrene «was present at twice the chronic guideline for aquatic life.»

Pallas also serves as one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, O3 and other air pollutants as required by the European legislation on ambient air quality assessment and management.

Previous work has indicated a strong correlation between the amount of material identified by magnetic remanence and benzo (a) pyrene, a carcinogenic polycyclic aromatic hydrocarbon found in particulates, Maher says.