Cytochrome

This page contains news and, when available, background information, on Cytochrome. Links on this site lead to other sites on the web.


Cytochrome - Any of several respiratory pigments that occur in animal and plant cell membranes and serve to transfer electrons from a substrate to a terminal acceptor such as oxygen.
[NABIR Bioremediation Glossary]

News archive for Cytochrome:

DNA barcoding takes on the world  -  04 Aug 2008
MSNBC...though, Hebert introduced the idea of reading a 650-letter fragment from the front end of a gene encoding the enzyme cytochrome oxidase I,

IAC: TB Drug Alters Power of HIV Medication  -  04 Aug 2008
MedPage Today,Rifampin is a potent inducer of cytochrome P450 enzymes, which metabolize many drugs, including the non-nucleoside reverse transcriptase inhibitors.

Una variación genética podría explicar la transexualidad FTM.  -  04 Aug 2008
ENEWSPAPER,Se trata de una variación en la encima que contribuye a metabolizar hormonas llamada Cytochrome P17. Es una mutación que también está presente en

Abiraterone, an Inhibitor of Cytochrome P 17, Effective in Hormone ...  -  Jul 30, 2008
Cancer Consultants,Abiraterone acetate is a small molecule inhibitor of cytochrome p (CYP) 17, a key enzyme in androgen synthesis. The current Phase I study involved 21

Search this blog  -  Jul 29, 2008
ScienceBlogsTobacco smoking seems to act upon cytochrome CYP1A2, inducing neuroleptic metabolism, mainly on clozapine and olanzapine, and polymorphisms within the

Cancer drug dramatically shrinks prostate tumors, study finds  -  Jul 22, 2008
Los Angeles Times,Researchers at the Institute of Cancer Research in London developed abiraterone to block an enzyme called cytochrome P17, which is crucial in converting

Studies Explore Factors That Underlie Varied Responses to Cancer Drugs  -  Jul 8, 2008
Journal of American Medical Association (subscription),Problems can arise when patients receive drugs that interfere with each other via competition for protein binding or by interacting with the cytochrome p450

Drosophila RNAi screen identifies host genes important for ...  -  Jul 9, 2008
Nature.com (subscription),COX6A1 encodes a subunit of cytochrome c oxidase (COX), an enzyme of the mitochondrial electron transport chain that catalyses electron transfer from

Resveratrol blocked multiple sites in the estrogen genotoxicity ...  -  Jul 29, 2008
HemOncToday,Cytochrome P450-mediated oxidation of catechol estrogens to quinines that react with DNA to form depurinating estrogen-DNA adducts may lead to genotoxicity.

FDA Releases List of Genomic Biomarkers Predictive of Drug ...  -  Aug 1, 2008
Medscape (subscription)In the case of warfarin, an anticoagulant, studies have shown that patients with specific variants of CYP2C9 (cytochrome P450) have a greater risk of

"It is - still - the best zoological blog out there, period"  -  Aug 2, 2008
ScienceBlogsCytochrome b and Bayesian inferences of whale phylogeny. Molecular Phylogenetics and Evolution 38, 344-354. Nishiwaki, M. 1963.

Transsexual gene identified by scientists  -  Jul 30, 2008
PinkNews.co.uk,By Staff Writer, PinkNews.co.uk • July 31, 2008 - 0:24 The variation is found within the gene for an enzyme called cytochrome P17, which is utilised in the

FDA Safety Changes: Ultram ER, Reyataz, Duragesic  -  Jul 9, 2008
Medscape (subscription)Because fentanyl is metabolized primarily via the cytochrome P450 isoenzyme 3A4 (CYP 3A4), concomitant use of strong CYP 3A4 inhibitors (eg, ritonavir,

Gilead now testing ritonavir replacement in human studies  -  Jul 23, 2008
Aidsmap,Ritonavir is the most potent known inhibitor of cytochrome p450 CYP 3A4, the route through which protease inhibitors are metabolised.

"It is - still - the best zoological blog out there, period"  -  Jul 25, 2008
ScienceBlogsPhylogenetic relationships among the delphinid cetaceans based on full cytochrome b sequences. Marine Mammal Science 15, 619-648.

News tips from the Journal of Neuroscience  -  Jul 22, 2008
EurekAlert (press release),The normal intrinsic pathway was not involved, because cytochrome c was not released from mitochondria. Nonetheless, caspase-9 was involved.

Pharmacotherapeutic Options for the Treatment of Depression in ...  -  Jul 20, 2008
RedOrbit,All antidepressants are hepatically metabolized by the cytochrome (CYP) P450 system, resulting in numerous drug-drug interactions with other medications.

FDA Safety Changes: Reyataz and Invanz  -  Jul 30, 2008
Medscape (subscription)The labeling now states that atazanavir may not be used with drugs that are highly dependent on cytochrome P450 isoenzyme 3A (CYP3A) or uridine diphosphate

Researchers Identify Functional Role of Lrh1 Gene in Regulating ...  -  Jul 30, 2008
Medi News Direct,Based on the findings, the researchers concluded that the Lrh1 gene plays a crucial role in the ovarian cells as a critical upstream regulator of cytochrome

Gene behind female-to-male transsexuality identified  -  Jul 29, 2008
Thaindian.com,The researchers found that the variation occurs in the gene for an enzyme called cytochrome P17, which is involved in the metabolism of sex hormones.

Novel Agent May Be Effective in Blocking Hormones in Prostate Cancer  -  Jul 29, 2008
Cancer Consultants,Abiraterone acetate inhibits the protein cytochrome P 17 which is involved in the production of male hormones. Results from the trial included changes in

"It is - still - the best zoological blog out there, period"  -  Jul 29, 2008
ScienceBlogsCytochrome b and Bayesian inferences of whale phylogeny. Molecular Phylogenetics and Evolution 38, 344-354. Muizon, C. de 1987. The affinities of Notocetus

Essential role for Nix in autophagic maturation of erythroid cells  -  Jul 17, 2008
Nature.com (subscription),Immunocytochemistry staining for COX IV, a catalytic subunit of cytochrome c oxidase localized to the inner mitochondrial membrane, also confirmed the

Brain research on the treadmill  -  Jul 28, 2008
separationsNOW.com (subscription),Increases in ubiquinol-cytochrome c reductase complex core protein 1 due to both forms of exercise were also observed. This enzyme forms part of the

Early Findings Create Buzz for Potent Novel Hormone Blocker  -  Jul 25, 2008
MedPage Today,Abiraterone is a potent, selective, irreversible inhibitor of an enzyme -- cytochrome P or CYP 17 -- that "catalyzes two independently regulated steroid

FDA Safety Changes: Asmanex Twisthaler, Advair HFA, Avelox  -  Jul 24, 2008
Medscape (subscription)Salmeterol is a long-acting β2-adrenergic agonist that is extensively metabolized to α-hydroxysalmeterol (aliphatic oxidation) by the cytochrome P450 3A4

Manipulating the Metazoan Mitochondrial Genome with Targeted ...  -  Jul 24, 2008
Science Magazine (subscription)Among mutations eliminating a site in the cytochrome c oxidase gene, mt:CoI A302T was healthy, mt:CoI R301L was male sterile but otherwise healthy,

New steroidal aromatase inhibitors: suppression of estrogen ...  -  Jul 24, 2008
7thSpace Interactive (press release),Aromatase, the cytochrome P-450 enzyme (CYP19) responsible for estrogen biosynthesis, is an important target for the treatment of estrogen-dependent breast

Osmetech Says FDA Clearance of Its Warfarin Test Will Help Expand ...  -  Jul 22, 2008
bioArray News (subscription),...adding tests for markers related to coagulation, such as Factor V/ Factor II prothrombin, or drug metabolism, like cytochrome P450 2C9 and 2D6.

Gene expression patterns of sulfur starvation inSynechocystis sp ...  -  Jul 22, 2008
7thSpace Interactive (press release),...while decreased transcription of genes for phycobilisome, photosystems I and II, cytochrome b6/f, and ATP synthase indicated reduced light-harvesting

In Additional Subgroup Analysis, ISENTRESS Helped to Increase CD4 ...  -  Jul 24, 2008
WebWire (press release),Preclinical studies showed that ISENTRESS is not metabolized by cytochrome P450 enzymes, but is primarily metabolized by uridine diphosphate

Omega-3-Rich Fish Oils Reduce Weight Gain in Animal Study  -  Jul 17, 2008
Natural News.com,...activity of several genes related to the metabolism of fats, including carnitine palmitoyltransferase 1a, cytochrome P450 4A10, and malic enzyme.

Bob Hazen: The Trumpeter Of Astrobiology  -  Jul 29, 2008
Scoop.co.nz,We can sequence your cytochrome, mine and those of a chimpanzee and you can see that there are small characteristic differences and either those were

FDA Safety Changes: Serevent Diskus, Letairis, Antibiotics  -  Jul 16, 2008
Medscape (subscription)Salmeterol is extensively metabolized to α-hydroxysalmeterol (aliphatic oxidation) by the cytochrome P450 3A4 (CYP3A4) isoenzyme. Concomitant use of CYP3A4

Millipore and CXR Biosciences Launch New CYP450 Antibody Panel  -  Jul 15, 2008
PharmaLive.com (press release),CXR Biosciences, today announced the launch of a new panel of human and rodent cytochrome P450 (CYP450) antibodies, for use in drug discovery programs.

Temple Terrace infant Megan finds hope in new therapy  -  Jul 14, 2008
Temple Terrace University Beacon,Grace is diagnosed with the same Mitochondrial disease that Megan has – Cytochrome C Oxidase Deficiency Complex IV. Grace’s mother also refused to listen to

Lipid Mediators Target PMN-induced Inflammation and Tissue Injury ...  -  Jul 14, 2008
Medi News Direct,The researchers assessed the formation of PMN superoxide, with a cytochrome c reduction assay. The results demonstrated that fMLP or TNF-α could activate

Complex population genetic and demographic history of the Salangid ...  -  Jul 14, 2008
7thSpace Interactive (press release),Results: We obtained the complete mtDNA cytochrome b sequences (1141 bp) of 354 individuals from 13 populations in the Pearl River, the Yangze River and the

Outlining eicosanoid biosynthesis in the crustacean Daphnia  -  Jul 14, 2008
7thSpace Interactive (press release),...arachidonic acid, through either the cyclooxygenase (COX) pathway; the lipoxygenase (LOX) pathway; or the cytochrome P450 epoxygenase pathway.

Health & Fitness : Are The Most Commonly Prescribed Drugs Of Our ...  -  Jul 12, 2008
Prudent Press Agency (press release),...in the mitochondria and is necessary for ATP production, functioning as an electron transporter to cytochrome oxidase, the primary respiratory enzyme.

Phylogeny and biogeographyof African Murinae based on ...  -  Jul 11, 2008
7thSpace Interactive (press release),...diversity from all their distribution area, based on the mitochondrial cytochrome b gene and the two nuclear gene fragments (IRBP exon 1 and GHR).

student's biology project captures attention of world-renowned ...  -  Jul 9, 2008
North Haven Post,Paolella reports that the students found that the mitochondrial DNA of the crab contains a gene that might show some variation: the cytochrome oxidase gene

Jaundice: A slow killer disease  -  Jul 5, 2008
The New Nation,...comes from other heme sources, including ineffective erythropoiesis, breakdown of other heme protrins such as muscle myoglobin and cytochrome enzymes.

Optimizing Pain Control With Fentanyl Patches  -  Jul 15, 2008
Medscape (subscription)Cytochrome (CYP) P450 enzymes are responsible for the metabolism of many drugs. The CYP isoenzymes involved with warfarin metabolism include 2C9, 2C19, 2C8,

TRANSEKSÜELLİĞİN GENİ BULUNDU  -  Jul 30, 2008
Haber Türk,Transeksüel geni adı verilen bu gen beynin yapılanmasının erken dönemlerinde 'cytochrome P17'ye etki ederek kişinin cinsel seçimlerinde çok etkili

Científicos identifican gen que determina la transexualidad  -  Jul 31, 2008
SentidoG,Esta variación se encuentra dentro del gen de una enzima llamada cytochrome P17, la cual es utilizada en el metabolismo de las hormonas sexuales.

Latest Most Up-to-Date Cancer Personalized Medicine Market Report  -  Jul 16, 2008
StreetInsider.com (subscription),...overview of the drug metabolism and toxicity process, the role of specific cytochrome P450 (CYP450) enzymes, and how these impact personalized medicine.

Genes & Development:å?¯æŽ§åˆ¶æŽ’å?µçš„基因  -  Jul 23, 2008
中国生物信�网,...synthesis because of failure of normal expression of the Lrh1 targets, steroidogenic acute regulatory protein and cytochrome




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