*  Parathion hydrolase enzyme - Stock Image F006/9731 - Science Photo Library
Parathion hydrolase, molecular model. This enzyme hydrolyses bonds in organophosphates, which include pesticides and the nerve gas sarin. - Stock Image F006/9731
  http://www.sciencephoto.com/media/525995/view
*  Cholinergic and noncholinergic changes in skeletal muscles by carbofuran and methyl parathion. - Semantic Scholar
The objective of this investigation was to determine the distribution of cholinergic (acetyl-cholinesterase, AChE) and noncholinergic markers in slow-, fast-, and mixed-fiber containing muscles (soleus, SOL; extensor digitorum longus, EDL; and diaphragm, DIA, respectively). Noncholinergic markers included high-energy phosphates (adenosine triphosphate, ATP; phosphocreatine, PCr; and their metabolites), and the activity of creatine kinase (CK) and lactate dehydrogenase (LDH) and their isoenzymes and subforms. All three types of muscles had only one CK isoenzyme, CK-MM, which totally consisted of MM3 subform. Levels of these determinants were highest in EDL followed by DIA and least in SOL. Another objective was to determine alterations of these markers under the influence of acute carbofuran (1.5 mg/kg) or methyl parathion (MPTH, 5 mg/kg) toxicity. Rats receiving either insecticide showed cholinergic signs with maximal severity including muscle fasciculations and convulsions ...
  https://www.semanticscholar.org/paper/Cholinergic-and-noncholinergic-changes-in-skeletal-Gupta-Goad/25f85b5fdbea5c3e82bc941c287602ec235f923e
*  Organophosphate - Wikipedia
An organophosphate (sometimes abbreviated OP) or phosphate ester is the general name for esters of phosphoric acid. Organophosphates are the basis of many insecticides, herbicides, and nerve agents. The United States Environmental Protection Agency lists organophosphates as very highly acutely toxic to bees, wildlife, and humans. Recent studies suggest a possible link to adverse effects in the neurobehavioral development of fetuses and children, even at very low levels of exposure. Organophosphates are widely used as solvents, plasticizers, and EP additives. Organophosphates are widely employed both in natural and synthetic applications because of the ease with which organic groups can be linked together. OP(OH)3 + ROH → OP(OH)2(OR) + H2O OP(OH)2(OR) + R'OH → OP(OH)(OR)(OR') + H2O OP(OH)(OR)(OR') + R"OH → OP(OR)(OR')(OR") + H2O The phosphate esters bearing OH groups are acidic and partially deprotonated in aqueous solution. For example, DNA and RNA are polymers of the type ...
  https://en.wikipedia.org/wiki/Organophosphate
*  NIOSHTIC-2 Publications Search - 00057533 - The teratogenic effect of an organophosphorated insecticide (parathion) in the...
Parathion administered before incubation, or at the first stages of incubation, is found to give to chicks and Japanese quail serious axial deformities. The cervical part of the rachis is the most strongly distorted and shows scoliosis, cyphosis, and lordosis. Histological studies reveal that the vertebral centers join together as do the neural arches. Craniovertebral joint is also very deteriorat
  https://www.cdc.gov/niosh/nioshtic-2/00057533.html
*  Parathion, Urine
... ,ARUP Laboratories is a national reference laboratory and a worldwide leader in innovative laboratory research and development. ARUP offers an extensive test menu of highly complex and unique medical tests in clinical and anatomic pathology. Owned by the University of Utah, ARUP Laboratories' client,medicine,medical supply,medical supplies,medical product
  http://www.bio-medicine.org/medicine-products/Parathion--Urine-24041-1/
*  Biology-Online • View topic - The Fiber Disease
FIG. 1 is an illustration of the detection of methyl parathion, a commercially available insecticide and cholinesterase inhibitor. The water sample was taken directly from the Clinch River, Oak Ridge, Tenn. and analyzed 'as is.' A Walz XE-PAM pulse-amplitude-modulation fluorometer was used to monitor fluorescence emitted from the naturally occurring algae in the river water. The sample was placed in a cuvette (3 ml) in the fluorometer optical compartment. An actinic light pulse (500 μE/m2/sec) from the fluorometer's halogen lamp illuminated the sample for 10 seconds and fluorescence induction curves were recorded. Eight minutes after the initial measurement (control period), methyl parathion was added to the sample to a final concentration of 18 μg/mL. The control fluorescence induction curve and the curve after exposure to the methyl parathion are presented in FIG. 1. A clear change in the initial fluorescence (Fo) and maximum fluorescence (Fmax) can be ...
  http://www.biology-online.org/biology-forum/about1958.html?p=50687&hilit=Edge+plasma
*  Aryldialkylphosphatase - Wikipedia
Aryldialkylphosphatase (EC 3.1.8.1) (more commonly known as phosphotriesterase, and also organophosphate hydrolase, parathion hydrolase, paraoxonase, and parathion aryl esterase) is a metalloenzyme that hydrolyzes the triester linkage found in organophosphate insecticides. an aryl dialkyl phosphate + H2O ⇌ {\displaystyle \rightleftharpoons } dialkyl phosphate + an aryl alcohol Thus, the two substrates of this enzyme are aryldialkylphosphate and H2O, whereas its two products are dialkylphosphate and aryl alcohol. The gene (opd, for organophosphate-degrading) that codes for the enzyme is found in a large plasmid (pSC1, 51Kb) endogenous to Pseudomonas diminuta, although the gene has also been found in many other bacterial species such as Flavobacterium sp. (ATCC27551), where it is also encoded in an extrachromosomal element (pSM55, 43Kb). Organophosphate is the general name for esters of phosphoric acid and is one of the organophosphorus compounds. They can be found as part of ...
  https://en.wikipedia.org/wiki/Aryldialkylphosphatase
*  Enhanced secretion of a methyl parathion hydrolase in Pichia pastoris using a combinational strategy | Microbial Cell Factories...
Pichia pastoris is an important and useful expression system for the secretion of target proteins and can efficiently produce heterologous proteins at low cost. However, some proteins cannot be secreted from P. pastoris, MPH from Ochrobactrum sp. M231 is one of the example that had limited secretion when tentatively expressed in P. pastoris [18, 29], while another organophosphorus hydrolase, OPHC2, a similar three-dimensional structure to MPH, is secreted efficiently [20]. In this study, we used MPH as a model to engineer amino acid sequences to improve the secretion of foreign proteins from P. pastoris. The results suggest that there are some protein features that may affect secretion. The usual strategies [6-8, 30-33] did not resolve the secretion problems of MPH and few studies related to protein secretion from P. pastoris had focused on the amino acid sequences of proteins [12, 34]. With luck, the OPHC2 protein provided useful information for our study. The approaches about improving MPH ...
  https://microbialcellfactories.biomedcentral.com/articles/10.1186/s12934-015-0315-4
*  Sex-selective abortion - Wikipedia
Sex-selective abortion is the practice of terminating a pregnancy based upon the predicted sex of the infant. The selective abortion of female fetuses is most common in areas where cultural norms value male children over female children, especially in parts of East Asia and South Asia (particularly in countries such as People's Republic of China, India and Pakistan), as well as in the Caucasus, and Western Balkans. Sex-selective abortion affects the human sex ratio-the relative number of males to females in a given age group, with China and India, the two most populous countries of the world, having unbalanced gender ratios. Studies and reports focusing on sex-selective abortion are predominantly statistical; they assume that birth sex ratio-the overall ratio of boys and girls at birth for a regional population, is an indicator of sex-selective abortion. This assumption has been questioned by some scholars. Scholars who support the assumption, suggest that the expected birth sex ratio range is ...
  https://en.wikipedia.org/wiki/Sex-selective_abortion
*  Organophosphorus compound - Wikipedia
Organophosphorus compounds are organic compounds containing phosphorus. They are used primarily in pest control as an alternative to chlorinated hydrocarbons that persist in the environment. These compounds are highly effective insecticides, though some are also lethal to humans at minuscule doses (nerve gas) and include some of the most toxic substances ever created by man, including sarin and VX nerve agents. Organophosphorus chemistry is the corresponding science of the properties and reactivity of organophosphorus compounds. Phosphorus, like nitrogen, is in group 15 of the periodic table, and thus phosphorus compounds and nitrogen compounds have many similar properties. The definition of organophosphorus compounds is variable, which can lead to confusion. In industrial and environmental chemistry, an organophosphorus compound need contain only an organic substituent, but need not have a direct phosphorus-carbon (P-C) bond.[citation needed] Thus a large proportion of pesticides (e.g., ...
  https://en.wikipedia.org/wiki/Organophosphorus_compound
*  Molecules | Free Full-Text | Sensitive and Selective Detection of Oxo-Form Organophosphorus Pesticides Based on CdSe/ZnS...
A rapid, sensitive and enzyme-based optical biosensor was applied for the determination of seven organophosphorus pesticides (OPPs), including the oxo forms (malaoxon, paraoxon, dibrom, and dichlorvos), the thio forms (malathion and parathion) and the mixed form (demeton) in Panax ginseng. The principal of the proposed method is that the fluorescence quenching effect of quantum dots (QDs) can be observed by enzyme-generated H2O2. The active centers of acetylcholinesterase (AChE) could be inhibited in the presence of pesticides, which caused decrease of the generated H2O2. Then, the inhibition efficiency of pesticide to AChE activity could be evaluated by measuring the fluorescence changes. Different from biosensors based on immobilized enzyme or self-assembling technique, the proposed biosensor demonstrated a good selectivity for the detection of oxo forms of OPPs. In the present study, the important experimental conditions of the proposed biosensor were investigated. Under the optimized ...
  http://www.mdpi.com/1420-3049/22/9/1421
*  Determination and maintenance of sublethal residue levels of dieldrin and parathion in Colinus virginianus
Rights: This volume was digitized and made accessible online due to deterioration of the original print copy. If you are the author of this work and would like to have online access removed, please contact the Library Administration Office, 785-532-7400, library@k-state.edu. ...
  http://krex.k-state.edu/dspace/handle/2097/10406
*  NIOSHTIC-2 Publications Search - 20032232 - Size exclusion chromatographic cleanup for GC/MS determination of organophosphorus...
Size exclusion chromatography (SEC) was used as a cleanup method for the analysis of organophosphorus pesticides in household and vehicle dusts. The pesticides investigated were diazinon, methyl parathion, chlorpyrifos, malathion, phosmet, and azinphosmethyl. These compounds are of interest due to their use in agricultural tree fruit production and/or urban pest control. Pesticides were determined
  https://www.cdc.gov/niosh/nioshtic-2/20032232.html
*  Failed Lila Rose hoax and "PRENDA the pretenda" bill inspire dialogue around sex-selective abortion
As Vanessa explained yesterday, the House of Representatives is set vote on the Prenatal Nondiscrimination Act (PRENDA), legislation that would ban abortion performed based on the fetus' sex. The vote was scheduled to happen today, but was pushed to tomorrow at the last minute. You'll remember that the law would require doctors to report any person seeking an abortion to the authorities if there's any suspicion the abortion is sex-selective - and if they don't report them, the doctors themselves could face jail time.. The timing is very auspicious. Live Action, the anti-choice group with a history of staging failed "sting" and hoax operations inside Planned Parenthood, has released their latest missive, and it is also focused on sex-selective abortion. We knew this was coming back in April, when Maya pointed out that Live Action's stunt attempts are so predictable that they can be debunked in advance. But the video release combined with the timing of the PRENDA bill have managed to inspire a lot ...
  http://feministing.com/2012/05/30/failed-lila-rose-hoax-and-prenda-the-pretenda-bill-inspire-dialogue-around-sex-selective-abortion/
*  Beyond Pesticides Daily News Blog » Blog Archive EPA Reverses Course and Allows Continued Use of Highly Neurotoxic Pesticide,...
Chlorpyrifos is part of the organophosphate (OPs) class of pesticides, which were used in World War II as nerve agents. As potent neurotoxicants, organophosphates are extremely harmful to the nervous system, given that they are cholinesterase inhibitors and bind irreversibly to the active site of an enzyme essential for normal nerve impulse transmission. The scientific evidence of neurotoxic dangers associated with chlorpyrifos exposure is extensive and consistent. Epidemiological data also points to subpopulations that are disproportionately affected by chlorpyrifos exposures. Low-income African-American and Latino families, including farmworker families, continue to suffer the most, and this disproportionate impact creates an environmental justice issue that the agency must not continue to ignore. A 2016 study found lower IQ in children born to mothers who, during their pregnancy, were living in close proximity to chemical-intensive agricultural lands where OPs were used. A 2015 study found ...
  http://beyondpesticides.org/dailynewsblog/2017/03/epa-reverses-course-allows-continued-use-highly-neurotoxic-pesticide-chlorpyrifos/
*  Efeitos do inseticida organofosforado metil paration (Folisuper 600 BR) sobre biomarcadores do estresse oxidante no teleósteo ...
Methyl parathion (MP) is an organophosphorus insecticide worldwide used in agriculture and aquaculture due to its high activity against a broad spectrum of insect pests. It is employed as pesticide in agriculture and in food storage shelters, as well as in fish culture tanks to kill aquatic larval stages of insects. The effect of exposure to 2 ppm of a commercial formulation of MP (Folisuper 600 BR, methyl paration 600 g.L-1) on catalase (CAT), glutathione peroxidase (GPx), superoxide dismutase (SOD), glutathione S-transferase (GST), reduced glutathione (GSH) and lipid peroxidation (LPO) of the liver, white muscle, gills, erythrocytes and plasma of the freshwater fish matrinxã, Brycon cephalus, was evaluated after 96 h of treatment. MP exposure resulted in a significant induction of SOD and CAT activity in all tissues, except in plasma, when compared with controls. However, the GPx activity decreased significantly in the white muscle and gills, whereas no alterations were observed in ...
  https://repositorio.ufscar.br/handle/ufscar/1278
*  Drought Stress Promotes Spider Mite Injury
Bruce Potter and Ken Ostlie (University of Minnesota) developed a rating scale to help make treatment decisions:. 0 no spider mites or injury observed. 1 minor stippling on lower leaves and no premature yellowing observed. 2 stippling common on lower leaves and small areas on scattered plants with yellowing observed. 3 heavy stippling on lower leaves with some stippling progressing into the middle canopy and leaf yellowing and some leaf loss observed; mites scattered in the middle and top canopy [Economic threshold]. 4 lower leaf yellowing readily apparent and leaf drop common; stippling, webbing and mites common in the middle canopy; mites and minor stippling present in upper canopy [Economic injury]. 5 lower leaf loss common and yellowing moving to the middle canopy; stippling and distortion of upper leaves common; mites in upper canopy observed.. Organophosphates are the recommended insecticidal chemistry for twospotted spider mite control (e.g., dimethoate and chlorpyrifos). Most pyrethroids ...
  http://www.plantmanagementnetwork.org/pub/crop/news/2017/DroughtStress/
*  Role of individual susceptibility in risk assessment of pesticides. | Base documentaire | BDSP
Objectives-This study presents criteria for assessing the individual pesticide burden of workers in the chemical industry. Methods-A group of 1003 workers exposed to methylparathion or ethylparathion alkyl phosphates, propoxur carbamate, or cyfluthrin pyrethroid was investigated. After exposure to methylparathion or ethylparathion the...
  http://www.bdsp.ehesp.fr/Base/193369/
*  Detection of parathion-methyl on gauze wipes on Environmental XPRT
Article Detection of parathion-methyl on gauze wipes. MATRIX: Cotton gauze pad (wipe) ANALYTE: Parathion-methyl RANGE OF DETECTION: 0.08 mg per wipe (100 cm2) MATERIALS: EnviroGard Parathion Plate Kit (item #75000). SDI Wipe Extraction Kit. Protec...
  https://www.environmental-expert.com/articles/detection-of-parathion-methyl-on-gauze-wipes-176067
*  Egnorance: August 2012
This was not a problem envisioned by early advocates of legalized abortion. It emerged as new technologies like ultrasound imaging made it common for expectant parents to know the sex of the baby in the womb. Economic pressures are only one factor. Sex-selective abortion is as big a problem in wealthy Korea as it is in rural China, and all but unknown in some of the poorest nations in the world in sub-Saharan Africa or Latin America. Sex-selective abortion is most common where (1) ultrasound imaging is easily available and (2) the prevailing culture is patriarchal and places a greater value on men for their earning potential, their capacity to help with physical labor, their responsibility to care for parents in their old age, and their ability to acquire a dowry with a bride. Many of the same cultures where infanticide was common, but now outlawed, have simply found in sex-selective abortion another form of exterminating unwanted females. A Population Council study of 301 induced abortions in ...
  http://egnorance.blogspot.com/2012/08/
*  Overwhelming number of MPs against sex-selective abortion - The Christian InstituteThe Christian Institute
She said: "Even today they are advising women in one of their leaflets and on their website that abortion for reasons of foetal sex is not illegal because the law is silent on the matter.". The Conservative MP also challenged the British Medical Association on their interpretation of the law.. She added: "They argue that having a child of a particular gender may be a legal and ethical justification for an abortion on the basis that the sex of the child may severely affect the pregnant woman's mental health." ...
  http://www.christian.org.uk/news/overwhelming-number-of-mps-against-sex-selective-abortion/
*  Sex-Selective Abortions | Path of the Beagle
[This post is a Beagle's Bark.] President Obama recently stated his opposition to a House bill that would have jailed doctors who knowingly perform abortions for sex-selection. Predictably, the president has been roundly criticized by the Religious Right. Even his defenders acknowledge, 'Banning abortions based on sex-selection is something everyone can sign on to in principle.' I…
  https://pathofthebeagle.com/2012/06/05/sex-selective-abortions/
*  Buy hydrochloric acid | P-Nitrophenol | Taylor Scientific
P-Nitrophenol - N2320-3 N2320-3 ProductClasses, class-G Assay (GC) .......... min. 98% Melting point .......... 110-113°C Water .......... 1% max.
  http://www.taylorscientific.com/taylorscientific/P-Nitrophenol-P6723.aspx
*  DOP&LR | OPD
The Online Position Description (OPD) system is used to submit, approve, track, view, and report on submissions for classified and partially-exempt positions. An OPD submission is a position description, position control change, or nonpermanent position request that requires department and Division of Personnel approval.
  http://doa.alaska.gov/dop/classification/opdOverview/