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Topic: Anti vs syn

	Nucleic Acids
		ring pucker: endo vs. exo and C-3' vs C-2' figure 29-9 a and b and figure 29-10 a and b
		glycosidic conformation: anti vs syn - figure 29-8 viii.sugar ring pucker: 4 out of 5 ring atoms are nearly planar the 5th atom is usually the C-2 or C-3 atom endo vs exo d.
		syn vs. anti conformation purines flip to assume syn orientation figure 29-4 ii.
	www.siumed.edu /~bbartholomew/course_material/nucleic_acids.html (400 words)

	Irritable Bowel Syn
		This included relief of urgency (68% alosetron vs. 41% placebo), speed of relief (71% vs. 40%), time to return to normal activities (75% vs. 49%), relief of abdominal pain (62% vs. 44%), and prevention of return of urgency (68% vs. 42%).
		The severity and frequency of abdominal pain improved in 66% and 68% of patients treated with alverine citrate vs. 58% and 69% of the placebo group.
		The mean percentage reduction in the scores for abdominal pain from baseline to the final assessment, although greater in the alverine citrate group (43.7%) compared with the placebo group (33.3%), was not statistically significant.
	www.modern-psychiatry.com /irritable_bowel_syn.htm (3826 words)

	STEREOSELECTIVE CONJUGATE ADDITIONS OF SELENIUM CONTAINING ENOLATES TO ENONES
		In order to choose the best conditions for a high conversion and a good regio (1,4 vs 1,2 selectivity) and stereocontrol (syn vs anti) and to evaluate the effects of some Lewis acids, preliminary experiments (entry 1-4) were carried out with chalcone and 1a.
		The use of titanium enolates generated from these optically pure a-selenoester allowed the syn or the anti adducts to be formed in the enantiomerically pure form.
		In fact, in the former case only the syn product 3c was isolated whereas in the latter case the anti 4c was present, although in poor yield (25%), as the sole reaction product.
	www.mdpi.org /ecsoc/ecsoc-7/papers/D001/D001.htm (1086 words)

	Undergraduate Course - Department of Chemistry - University of Oxford
		Reaction diagrams: kinetics vs thermodynamics; importance of activation energy.
		Comparison of elimination vs substitution – how to decide which occurs: nature of base or nucleophile; effect of temperature.
		Syn addition reactions: epoxidation, dihydroxylation, Diels Alder reaction.
	www.chem.ox.ac.uk /teaching/michaelmas/michajfyr1.html (208 words)

	Neuroleptic Malig. Syn.
		The only controlled study I have found reported with adding pulsed steroids to dantrolene and bromocriptine was of considerable benefit.
		Stopping Meds at First Signs Reported to Help: A study of 657 patients who were watched for early signs of NMS and had it stopped immediately had a much lower rate of NMS (0.2% vs 2.1%) than 197 patients treated without the special precautions.
		The half given pulsed steroids recovered in an average of 7 days vs.
	www.modern-psychiatry.com /neuroleptic_malig__syn_.htm (467 words)

	Chemical Reactivity
		Note that the "anti" descriptor for this configuration refers to the antarafacial relationship of X and Y with respect to the light orange plane.
		In both syn and anti-transition states the X-C-C-Y bonds are coplanar, an alignment that allows facile conversion of two sigma bonds (colored red) to a pi-bond.
		Both syn and anti additions are observed, as noted in an earlier chapter.
	www.cem.msu.edu /~reusch/VirtualText/special3.htm (9077 words)

	A
		In the representation of stereochemical relationships "anti" means "on opposite sides" of a reference plane, in contrast to "syn" which means "on the same side", as in the following examples.
		(B) In the older literature the terms anti and syn were used to designate stereoisomers of oximes and related compounds.
		In the examples described under (1) and (2) anti processes are always antarafacial, and syn processes are suprafacial.
	www.chem.qmul.ac.uk /iupac/gtpoc/A.html (2527 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		Used alone, ACV shows no anti effect either in the test tube or in humans, but some researchers believe that the drug significantly increases the antiviral effect of AZT.
		In the test tube, the specific molecular weight of dextran sulfate and the amount of sulphur on the molecule is critical for whether or not it has antiviral activity.
		Skeptics cautioned that oral dextran sulfate could be broken down into smaller subfragments which are not then anti retroviral and that these subfragments could be causing some of the side effects and laboratory abnor- malities.
	www.aidsinfobbs.org /periodicals/beta/3 (9627 words)

	Parkinson's Disease Research Web: Grants for Models of Parkinson's Disease: National Institute of Neurological ...
		Although the functions of alpha-Syn are not known, it is abundant in neurons and is particularly enriched in the presynaptic terminals.
		In humans and rodents, beta Syn and gamma-Syn, members of the Syn family, are also expressed in nervous tissues.
		To gain a better understanding of the roles of different Syn isotypes in normal neuronal functions and the pathogenesis of PD, we will examine the expression patterns and cell biology of different Syn in human and rodent tissues, and in transgenic (Tg) mice expressing wild-type or A53T alpha- Syn, and in transfected cells in vitro.
	www.ninds.nih.gov /funding/research/parkinsonsweb/grants_models_2000.htm (10645 words)

	Employ vs. Enslave
		Employ vs. Enslave explains the fundamental differences between man's inalienable right to the sweat of his brow granted him by his Creator and his legal right to labor for another master, ruler or god.
		Return 30 U.S. vs Ballard, 535 F2d 400 (1967).
		Return 34 Murdock vs PA., 318 US 105.
	www.hisholychurch.net /study/gods/eve.htm (6963 words)

	G-quartets, Quadruplexes, etc. (Bioinformatics) (Site not responding. Last check: 2007-10-29)
		To be explicit, the effects of steric hinderance at the para vs meta positions of the peripheral tolyl groups.
		This paper very clearly discusses the "propeller" structured quadruplex, the anti and syn structural arrangements found in quadruplexes, and lateral and diagonal external loops.
		Furthermore, in c, the anti vs syn arrangements are clearly labelled as well.
	www.cybcon.com /~plasmid/quad.html (5698 words)

	Lec 6-1: Eu vs. Pro
		Go over cell cycle, implications for aging[senescence - one way arrow no return vs. resting should be two way arrow] and stem cells and differentiation and cancer [errors occur mainly in S phase].
		Mesosome - an invagination of the membrane for use as a 'synthetic workspace', e.g.
		Drugs - Because of 70s vs 80s ribosomes, this is basis for many antibacterial agents.
	beloit.edu /~ordman/courses/chem12702/lec0601eupro.html (1053 words)

	Undergraduate Course - Department of Chemistry - University of Oxford
		C vs O alkylation: effects of solvent, counterion and stereoelectronics.
		Directed reaction; simple diastereoselectivity: syn vs anti product formation; kinetic vs thermodynamic control; Zimmerman Traxhler model; diastereofacial selectivity: Use of chiral aldehydes / enolates, double stereodifferentiation.
		Chiral reagents vs chiral auxiliaries and vs chiral catalysts.
	www.chem.ox.ac.uk /teaching/michaelmas/michvgyr3.html (229 words)

	Hot Atom Chemistry 1968-1976
		The syn, anti, and trans forms of this molecule were prepared and irradiated.
		The results show that the displacement reaction is > 95% stereospecific in the gas phase, with ease of substitution being greater in the anti isomer.
		F-labeled 2-deoxy-2-fluoro-D-glucose as a radiopharmaceutical for measuring regional myocardial glucose metabolism in vivo: tissue distribution and imaging studies in animals", J.
	www.bnl.gov /chemistry/History/HotAtomChemistry1968-1976.asp (886 words)

	AEGiS-05CROI: Differences in immunologic and virologic markers in patients with (Syn) and without (NoSyn) acute ...
		Objective: To analyze immunologic and virologic markers among Syn (greater than 4 symptoms at time of AC) versus NoSyn (less than 4 symptoms at time of AC) followed for 2 years.
		Methods: 23 (9 Syn, 14 NoSyn) AC detected by p24 Ag screening of 12,000 STD pts in Trinidad.
		Results: VL was higher in Syn AC during first 6 mo but means were not different over 2 yrs follow up.
	www.aegis.com /conferences/croi/1998/591.html (337 words)

	Anti-Carcinogenicity of Probiotics and Prebiotics
		A reduction in colon cancer incidence (40% vs 77% in controls) was evident in animals receiving L.
		Using the former protocol, a significant decrease was seen in the incidence of colon tumours (71% vs 100% in control rats), and the number of tumours per tumour-bearing animal (1.7 vs 3.7 in controls).
		However when Lactobacillus GG was administered after DMH, no decrease in tumour incidence was seen indicating that the effect of the LAB was on initiation stage rather than on promotion stage of tumorigenesis.
	www.open-access-biology.com /probiotics/burns/burns.html (7178 words)

	Biochemical evidence for the requirement of Hoogsteen base pairing for replication by human DNA polymerase {iota} -- ...
		In the A·T base pair, the templating A adopts a syn conformation and forms a Hoogsteen base pair with the incoming T, which retains the anti conformation.
		A and G adopting a syn conformation in the polymerase active
		the incoming pyrimidine nucleotide remains in the anti conformation.
	www.pnas.org /cgi/content/full/102/30/10466 (3608 words)

	Specificity mapping of human anti-T cell receptor monoclonal natural antibodies: defining the properties of epitope ...
		The Vß TCR CDR1 and FR3 16- and 17-mer homologs represent
		OR5 reacted to Mcg 8 and 17 and Syn 2H-11 reacted to Mcg
		Ichiyoshi, Y., Casali, P. (1994) Analysis of the structural correlates for antibody polyreactivity by multiple reassortments of chimeric human immunoglobulin heavy and light chain V segments.
	www.fasebj.org /cgi/content/full/16/7/642 (5008 words)

	The crystal structure of the Rev binding element of HIV-1 reveals novel base pairing and conformational variability -- ...
		The crystal structure is shorter (31.0 Å vs. 33.9 Å) and wider
		Stereo view of the superposition of a type I RBE duplex (101-130 shown) from the crystal structure and the NMR model of the unbound RBE (5).
		tetraplexes all guanines are in the anti conformation (26).
	www.pnas.org /cgi/content/full/97/10/5107 (4248 words)

	Enolates/Enamines (Site not responding. Last check: 2007-10-29)
		recent paper was published concerning the reactivity of monomers vs. dimers.
		One important difference is that the choice of the amine used can have a dramatic effect on the stereoselectivity of an alkylation, due to the steric interactions induced by the amine substituents.
		Try to predict where a substituent on the 6-position would go (axial or equatorial) and where an incoming alkylating agent will react (syn or anti).
	wngr343-pc1.science.oregonstate.edu /gablek/CH630/enolates.htm (268 words)

	OVERALL COURSE REVIEW
		Anti vs. gauche interactions within the cyclohexane ring
		What is the difference between groups which are syn periplanar and groups which are anti periplanar?
		Why is the anti periplanar geometry of the E2 reaction particularly important in cyclohexane rings?
	www.dartmouth.edu /~chem51/overall/overall.html (3913 words)

	Untitled Document
		Polar vs. nonpolar compounds: Be able to differentiate compounds, or portions of molecules according to this characteristic; amphipathic compounds
		Electrostatic interactions: example(s); factors contributing to force of electrostatic interaction (an equation); meaning of dielectric constant
		fatty acids - general structure; numbering scheme; saturated vs. unsaturated; effect of double bonds on structure; effect of length and saturation on melting point
	www.tamu.edu /classes/bich/kunkel/44004chapobjs.html (2219 words)

	Lectures 5 and 6: Stereoelectronic effects (Site not responding. Last check: 2007-10-29)
		Similar effects control electrophilic attack on alkenes (K 55), and enols (K 59).
		E2 goes anti or syn, but never gauche; anti vs syn eliminations (K 65).
		Anti lone pairs should be important (anomeric effect), but the results are not that simple (K 71).
	www.chm.bris.ac.uk /aldergroup/level3/ch300l56.htm (385 words)

	Parkin Binds to alpha /beta Tubulin and Increases their Ubiquitination and Degradation -- Ren et al. 23 (8): 3316 -- ...
		Confocal images from the rhodamine channel (staining actin in spines, red) and FITC channel (parkin, green) were pseudocolored and merged.
		Confocal images from the rhodamine channel (parkin, red) and FITC channel (synaptophysin, green) were pseudocolored and merged.
		Lucking CB, Durr A, Bonifati V, Vaughan J, De Michele G, Gasser T, Harhangi BS, Meco G, Denefle P, Wood NW, Agid Y, Brice A (2000) Association between early-onset Parkinson's disease and mutations in the parkin gene.
	www.jneurosci.org /cgi/content/full/23/8/3316 (6092 words)

	Edward Loechler Awards / Publications
		Lee, C.H. and Loechler, E.L. (2003) Molecular modeling of the major benzo[a]pyrene N2-dG adduct in cases where mutagenesis results are known in double stranded DNA.
		Yin, J., Seo, K.-Y. and Loechler, E.L. (In Press) A role for DNA polymerase V in G->T mutagenesis from the major benzo[a]pyrene N2-dG adduct when studied in a 5'-TGT sequence in Escherichia coli.
		Loechler, E.L. (1991) Rotation about the C6-O6Bond in O6-Methylguanine: The syn and anti-conformers Can Be of Similar Energies in Duplex DNA as Estimated by Molecular Modeling Techniques.
	www.bu.edu /bioinformatics/research/ap_loechler_e.htm (1856 words)

	Chapter 4 Electrophilic Addition to C-C Multiple Bonds
		Apparant syn addition can sometimes occur when one of the olefinic carbons bears a phenyl group.
		This reaction has also been a useful tool in establishing stereochemistry relative to a carboxylate group.
		4) 1,2 vs. 1,4 addition to conjugated dienes.
	www.chem.uh.edu /Courses/Thummel/Chem6352/Ch04 (284 words)

	broadband » Forums » Security » Microsoft Anti-Virus? (Site not responding. Last check: 2007-10-29)
		However, their anti-spyware has been released in beta.
		It appears that it is basically the Giant Anti Spyware program with a few (unspecified) mods.
		I don't think that M$ have realeased their AV just yet...
	www.broadbandreports.com /forum/remark,12307960~mode=flat (985 words)

	oral exams in graduate school
		Also for electophilic substitution on aromatic rings, recognize ortho-para vs meta directors.
		Also, some syn vs anti addition on alkenes, what happens when (again with alkenes) you use cold vs hot KMnO4, and why not use OsO4?
		Predict the NMR (you put it up on the board) for some molecule that they give you the name of.
	www.physicsforums.com /showthread.php?t=1777 (406 words)

	Signs of Immaturity of Splenic Dendritic Cells from the Autoimmune Prone Biobreeding Rat: Consequences for the In Vitro ...
		Lee, K. Nitric oxide produced by macrophages mediates suppression of conA-induced proliferative responses of splenic leukocytes in the diabetes-prone BB rat.
		Essential fatty acid deficiency prevents autoimmune diabetes in nonobese diabetic mice through a positive impact on antigen-presenting cells and Th2 lymphocytes.
		Kronin, V., K. Winkel, G. Süss, A. Kelso, W. Heath, J. Kirberg, H. von Boehmer, K. Shortman.
	www.jimmunol.org /cgi/content/full/162/3/1795 (5773 words)

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	www.weeksmd.com /articles/weight_loss/at_syn.php (623 words)

	Organic Chemistry (Site not responding. Last check: 2007-10-29)
		Newman projection, PE vs. rotation (anti and eclipse)
		Newman projection, PE vs. rotation (major and minor eclipses, anti, gauche)
		Boat and Chair, Axial and Equatorial, Stability, Cis vs. trans
	www.lsmsa.edu /chynes/Org213Topics.htm (91 words)

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