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Topic: Cilium



  
 Mathematical Model of Ciliary Function
This is one representation of the recovery phase for a cilium as derived by the methods above.
The motion of the cilium sweeps through two different planes, one for the effective phase and the other for the recovery phase.
The drag coefficient, D > 0, is a constant, the value of which depends on interaction of the cilium with the medium (which refers to the cytosol in the recovery phase).
http://members.aol.com/tiermensch/mathmodel.html   (3808 words)

  
 Computation of the Internal Forces in Cilia: Application to Ciliary Motion, the Effects of Viscosity, and Cilia ...
is the inclination angle of the cilium at its leftmost position, just before the beginning of the effective stroke.
During the recovery stroke, the basal region (~10% of the cilium) moves quickly from its rightmost position (the position
stroke the cilium is almost straight, the contribution from the
http://www.biophysj.org/cgi/content/full/74/4/1658   (6491 words)

  
 Simonsays.com > SimonSaysShop > Darwin's Black Box: The Biochemical Challenge to Evolution (eBook) > Read an Excerpt
The amount of scientific research that has been and is being done on the cilium -- and the great increase over the past few decades in our understanding of how the cilium works -- lead many people to assume that even if they themselves don't know how the cilium evolved, somebody must know.
Darwinian theory has given no explanation for the cilium or flagellum.
Each of the nine outer rods is a microtubule that resembles a fused, double-smokestack with bricks of tubulin.
http://www.simonsays.com/subs/excerpt.cfm?areaid=358&isbn=0743214854   (7232 words)

  
 Cilium - Talk Medical
Before taking Cilium, tell your doctor if you are taking any prescription or over-the-counter medicines.
· You may not be able to take Cilium or you may require special monitoring while taking Cilium if you have any of the conditions listed above.
Brands: Alramucil, Cilium, Fiber Eze, Fiberall, Genfiber, Hydrocil, Konsyl, Konsyl for Kids, Konsyl-D, Konsyl-Orange, Maalox Daily Fiber Therapy, Metamucil, Modane Bulk, Perdiem Fiber, Reguloid, Serutan, Syllact, V-Lax
http://www.talkmedical.com/medications/1261/Cilium   (701 words)

  
 Proteomic analysis of a eukaryotic cilium -- Pazour et al. 170 (1): 103 -- The Journal of Cell Biology
Proteomic analysis of a eukaryotic cilium -- Pazour et al.
http://www.jcb.org/cgi/content/abstract/170/1/103   (370 words)

  
 Design Arguments for the Existence of God [Internet Encyclopedia of Philosophy]
Thus, there is no reason to think that it is logically or nomologically impossible, according to Darwinian theory, for a set of organisms with a precursor to a fully functional cilium to evolve into a set of organisms that has fully functional cilia.
Since natural selection can only choose systems that are already working, if a biological system cannot be produced gradually it would have to arise as an integrated unit, in one fell swoop, for natural selection to have anything to act on (Behe 39; emphasis added).
The stronger construction of the conclusion (and argument) incorrectly presupposes that Darwinian theory implies that every precursor to a fully functional system must itself perform some function that makes the organism more fit to survive.
http://www.iep.utm.edu/d/design.htm   (8076 words)

  
 Cilium side effects
It takes just minutes to learn what you need to know about Cilium: whether you are on a safe dose and what other hazards may exist like interactions, conflicts with other diseases you may have, duplication of therapy, reproductive hazards...all customized for you.
If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
Alramucil, Cilium, Fiber Eze, Fiberall, Genfiber, Hydrocil, Konsyl, Konsyl for Kids, Konsyl-D, Konsyl-Orange, Maalox Daily Fiber Therapy, Metamucil, Modane Bulk, Perdiem Fiber, Reguloid, Serutan, Syllact, V-Lax
http://www.medicationadvisor.com/side_effects/Cilium.htm   (1229 words)

  
 Study sheds light on signaling mechanism in stem cells, cancer
The demonstration that the drug affected Smoothened movement to the cilium suggests how cyclopamine inhibits the Hedgehog pathway, the researchers say, and shows that the correlation between Smoothened on the cilium and pathway activation is very tight.
Just how or what the primary cilium is doing to promote Smoothened's activity is not clear, say the researchers.
But its close involvement with the primary cilium suggests that the latter may also be implicated, suggesting a possible target for therapy.
http://www.eurekalert.org/pub_releases/2005-10/uoc--ssl102405.php   (1232 words)

  
 Myosin VIIa Participates in Opsin Transport through The Photoreceptor Cilium -- Liu et al. 19 (15): 6267 -- Journal of ...
of the cilium, and thus affect opsin flow indirectly.
-actinin in the connecting cilium of rat photoreceptors.
demonstrate that a myosin may function in a cilium and suggest
http://www.jneurosci.org/cgi/content/full/19/15/6267   (6599 words)

  
 Mutant Sensory Cilia in the Nematode Caenorhabditis elegans
The tubule-associated material of the OLQ cilium is no longer present.
These doublets are not continuous with the nine peripheral doublets of the cilium (Fig.
The OLQ cilium has a similar nubbin about 1 micrometer more anterior.
http://www.wormatlas.org/Perkins_1986/results.html   (9664 words)

  
 FOCUS - January 24, 2003 - PATHOLOGY: Kidney Disease Genes Tied to Flow Sensing
Unlike the motile cilia of the respiratory tract, the primary cilium is usually stiff and can act as a lever to convey mechanical signals.
Although still preliminary, the work is bringing a new focus in PKD research and turning attention to the role of mechanical sensation in cells.
Damage to kidneys is the most ravaging symptom of PKD, but patients can develop cysts in the liver and pancreas, as well as aneurysms and heart valve defects.
http://focus.hms.harvard.edu/2003/Jan24_2003/pathology.html   (1316 words)

  
 Interactive Fly, Drosophila
Rfx mutant flies show defects in chemosensory and mechanosensory behaviors but have normal phototaxis, consistent with Rfx expression in ciliated sensory neurons and neuronal precursors but not in photoreceptors.
Those that have been molecularly characterized include nompC, which encodes a member of the TRP channel superfamily, and nompA, a component of the dendritic cap that ensheaths the sensory cilium.
In nompA mutants, defects in mechanosensory behavior and electrophysiology are associated with disconnection of dendritic caps from the sensory cilia.
http://www.sdbonline.org/fly/hjmuller/rfx1.htm   (2163 words)

  
 Evolution of flagella - EvoWiki
These argue some version of the idea that the cilium evolved from a symbiotic spirochete that attached to a primitive eukaryote or archaebacterium.
Cavalier-Smith's 15-page article was essentially entirely about protozoan taxonomy and how often well-accepted symbioses, like those of mitochondria and chloroplasts, had occurred (and he did criticize Margulis, and others, along these lines).
The cilium developed from pre-existing components of the eukaryotic cytoskeleton (which has tubulin, dynein, and nexin, used for other functions of course) (McQuade, 1977; Cavalier-Smith 1975, 1978, 1982) as an extension of the mitotic spindle apparatus (Cavalier-Smith, 1987b).
http://wiki.cotch.net/index.php/Evolution_of_flagella   (5778 words)

  
 Cyclic AMP Diffusion Coefficient in Frog Olfactory Cilia -- Chen et al. 76 (5): 2861 -- Biophysical Journal
Equation 1 assumes that the movement of cAMP, which is negatively charged, does not
Thus, the response to a small stimulus would be further
pipette and a gigaseal is formed at the base of the cilium.
http://www.biophysj.org/cgi/content/full/76/5/2861   (4074 words)

  
 Cilium - Wikipedia, the free encyclopedia
The region between the basal body and axoneme is a short transition zone which is less studied.
The name cilium may also be used to emphasize their differences from bacterial flagella.
Basal body is made from the centriole, which migrates to the cell surface to act as the basal body in animal cells.
http://en.wikipedia.org/wiki/Cilium   (632 words)

  
 Search Results for cilium - Encyclopædia Britannica
As a cilium moves backward, it is relatively rigid; upon recovery, however, the cilium becomes...
The photoreceptor of such primitive chordates as the urochordate ascidian tadpole is a modified cilium with the 9 + 0 pattern; the cilium has developed into numerous lamellae.
The photoreceptor of the jellyfish Polyorchis penicillatus is a modified cilium, or hairlike structure, as are the photoreceptors of many higher animals.
http://www.britannica.com/search?query=cilium&submit=Find&source=MWTAB   (350 words)

  
 Default Page Title
What is different about the cilium's orientation during the recovery stroke, as compared to the power stroke.
NOTE: Power stroke phases for the cilium are shown in green.
2) If the black base to which the cilium is attached was a freely swimming organism, in which direction would the power stroke tend to propel the organism?
http://www.eeob.iastate.edu/faculty/DrewesC/htdocs/INT-ANIMA-cilium-ONE.htm   (181 words)

  
 What are Cilia?
A cilium attaches to the cytoskeleton of the cell with a basal body, the way a root attaches hair to our skin.
The structure of a cilium is much like a tube, and its long fibers are called microtubules.
When kinesin binds to one side of the doublets and not the other, the cilium flexes and curves, similar to the way our skeletal muscles contract.
http://www.wisegeek.com/what-are-cilia.htm   (315 words)

  
 Brainstorms: The Other Flagellum
The more I think about the differences between the ATP synthase and cilium (and the fact that they are unrelated) the more fascinating the similarity of the rotating mechanism becomes.
In the ATP synthase, the complex is both the regulator and rotator (and an ATPase), as opposed to the ~ 100,000 different polypeptides that ~ 300 different polypeptides working in a well defined repeat structure gives rise to, that other flagellum.
Probably such cooptions back-and-forth have been going on since the origin of the cilium, so what we really need to know is not what proteins critter X uses for transport, but what the universally conserved proteins are.
http://www.iscid.org/boards/ubb-get_topic-f-6-t-000399-p-3.html   (2584 words)

  
 cilium - definition of cilium by the Free Online Dictionary, Thesaurus and Encyclopedia.
Botany One of the hairs along the margin or edge of a structure, such as a leaf, usually forming a fringe.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
A microscopic hairlike process extending from the surface of a cell or unicellular organism.
http://www.thefreedictionary.com/cilium   (234 words)

  
 Answering the Biochemical Argument from Design
If it is correct, then we should be unable to find examples of functional cilia anywhere in nature that lack the cilium's basic parts.
One of these is the eukaryotic cilium, an intricate whip-like structure that produces movement in cells as diverse as green algae and human sperm.
The key element of the claim was that: "..
http://www.millerandlevine.com/km/evol/design1/article.html   (4587 words)

  
 Cilium Drug and Prescription Information, Side Effects, Use, and Dosage
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Cilium Drug and Prescription Information, Side Effects, Use, and Dosage
Keep Cilium (Oral) and all medications out of the reach of children.
http://www.healthdigest.org/prescription-drug-reference/cilium-oral-5941.htm   (584 words)

  
 The cilium as a biological nanomachine -- SATIR 13 (9002): 235 -- The FASEB Journal
the effective and recovery stroke of the cilium repeats every 16
The cilium as a biological nanomachine -- SATIR 13 (9002): 235 -- The FASEB Journal
Porter took the cilium as one of his main examples.
http://www.fasebj.org/cgi/content/full/13/9002/S235   (1876 words)

  
 The intraflagellar transport protein, IFT88, is essential for vertebrate photoreceptor assembly and maintenance -- ...
Analysis of osm-6, a gene that affects sensory cilium structure and sensory neuron function in Caenorhabditis elegans.
proteins are associated with the cilium and basal body in situ
IFT particles associate with the vesicles and the vesicles fuse with the ciliary or plasma membrane at the base of the connecting cilium.
http://www.jcb.org/cgi/content/full/157/1/103   (7401 words)

  
 Calcium-Dependent Assembly of Centrin-G-Protein Complex in Photoreceptor Cells -- Pulvermüller et al. 22 (7): 2194 ...
The photoreceptor connecting cilium: a model for the transition tone, p.
This, however, is not the only function of this structure; it
at the inner surface of the microtubule doublets of the cilium.
http://mcb.asm.org/cgi/content/full/22/7/2194   (6476 words)

  
 Cystic Kidney Diseases: All Roads Lead to the Cilium -- Zhang et al. 19 (4): 225 -- Physiology
cilium) are thought to be sensory organelles involved in chemo-,
the physiological role that the cilium plays on renal epithelium
that is also present in the primary cilium (6, 49, 77).
http://physiologyonline.physiology.org/cgi/content/full/19/4/225   (3790 words)

  
 Cilia, flagella, and centrioles
Cilia and flagella have the same internal structure.
Centrioles come in pairs, each organized at right angles to the other.
Furthermore, there are important microtubule associated proteins (MAPs) projecting from one of the microtubule subunits.
http://www.cytochemistry.net/Cell-biology/cilia.htm   (696 words)

  
 Primary (9+0) Cilium Resource Page
Our biomedical research program is designed to study this question.
Follow this link for a list of cells expressing primary cilia (and some associated structures).
The primary cilium is therefore ideally positioned to monitor the composition and flow rate of the nascent urine.
http://www.members.global2000.net/~bowser/cilia.html   (402 words)

  
 Both External and Internal Calcium Reduce the Sensitivity of the Olfactory Cyclic-Nucleotide-Gated Channel to CAMP -- ...
A given cilium was used for a full dose-response study under just 1 of the conditions shown.
This effect may have been mediated by removal of endogenous
Where "wash" is indicated, the cilium was incubated in a divalent-free cytoplasmic solution for 10 min at the start of the experiment.
http://jn.physiology.org/cgi/content/full/81/6/2675   (5495 words)

  
 Cilia and Flagella
Basal bodies are identical to centrioles and are, in fact, produced by them.
Each cilium (and flagellum) grows out from, and remains attached to, a basal body embedded in the cytoplasm.
Where functions have been identified, they all involve sensory reception.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Cilia.html   (591 words)

  
 Ultrastructure of a eukaryotic flagellum or cilium
(c) The basal body anchoring the cilium or flagellum to the cell has a ring of 9 microtubule triplets (The basal body is structurally identical to a centriole).
The 9 doublets of the cilium extend into the basal body, where each doublet joins another microtubule to from the ring of 9 triplets.
The 2 central microtubules terminate above the basal body.
http://www.heathwood.org/science/apb07jhm/tsld074.htm   (61 words)

  
 Transport: PKD, Cilium
Presenter #2: Renal cystic disease: the starring role of the primary apical cilium.
http://www.iups2005.org/agenda/somlo.htm   (24 words)

  
 Disruption of Kinesin II Function Using a Dominant Negative-Acting Transgene in Xenopus laevis Rods Results in ...
II is especially concentrated in the connecting cilium.
cilium during photoreceptor morphogenesis, similar to its role
cilium is such that the plus end is distally located, and opsin
http://www.iovs.org/cgi/content/full/44/8/3614   (5153 words)

  
 Simulated cross-bridge patterns corresponding to ciliary beating in Paramecium
Institute of Biological Sciences, University of Tsukuba, Ibaraki 305, Japan
Published data have indicated that there is a periodically changing series of cross-bridge patterns in the nine outer doublets.
Hereafter, the pattern of this distribution will be termed 'cross-bridge pattern'.
http://www.nature.com/nature/journal/v295/n5850/abs/295609a0.html   (270 words)

  
 what are Cilia and Flagella
This part of the story of how cilia beat is agreed upon by all of the scientists that study cilia and flagella.
Figure 2 is a diagram of these internal parts of a cilium.
The Geometric Clutch model of ciliary and flagellar beating is a hypothesis that attempts to explain the way that cilia and flagella work.
http://www2.oakland.edu/biology/lindemann/cf.htm   (526 words)

  
 The Transcription Factor RFX3 Directs Nodal Cilium Development and Left-Right Asymmetry Specification -- Bonnafe et al. ...
and dRFX are involved in sensory cilium specification (9, 55).
Barr, M. Caenorhabditis elegans as a Model to Study Renal Development and Disease: Sexy Cilia.
Polycystins 1 and 2 mediate mechanosensation in the primary cilium of kidney cells.
http://mcb.asm.org/cgi/content/full/24/10/4417   (7126 words)

  
 Dorlands Medical Dictionary
[L. cilium eyelid, eyelash] a combining form denoting cilia or a ciliary structure.
http://www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_c_35zPzhtm   (1779 words)

  
 cilium
cilium (pl.: cilia) Hairlike locomotor structure on certain cells; a locomotor structure on a ciliate protozoan.(From Glossary of Biotechnology for Food and Agriculture)
Since the discovery that numerous proteins involved in mammalian disease localize to the basal bodies and cilia, these organelles have emerged from relative...
Cilia and flagella are widespread cell organelles that have been highly conserved throughout evolution and play important roles in motility, sensory perception...
http://www.mongabay.com/igapo/biotech/cilium.html   (157 words)

  
 cilium - OneLook Dictionary Search
cilium : The On-line Medical Dictionary [home, info]
Words similar to cilium: cilia, eyelash, hair, lash, more...
cilium : Dorland's Illustrated Medical Dictionary [home, info]
http://www.onelook.com/?w=cilium   (224 words)

  
 Britannica Concise Encyclopedia - The online encyclopedia you can trust!
The fibres are covered by a membrane continuous with the cell membrane; movement is controlled by the basal body (or kinetostome) that is located just inside the cell surface at the base of the cilium.
Beneath the surface of some cells there is a network of fibrous rootlets or microtubular bundles that may provide support for the epithelium or coordinate ciliary beating in protozoans.
http://www.britannica.com/ebc/print_toc?tocId=9082643   (214 words)

  
 Ciliary Structure and Function
The second paper presents mathematical modeling of an ideal cilium by vector analysis based on hypothesized biophysical properties of microtubules.
cilium, mucocilium, ciliary beat frequency, trachea, respiratory epithelium, mathematical model, mathematical biology, computational biology, mathematical transform, mathematical transformation, linear regression, inverse transform, spectral analysis, phase contrast, phase contrast microscopy, Fourier transform, videomicroscopy, microtubule, otitis media
This leads to a partial differential equation when taken to limits.
http://members.aol.com/tiermensch   (1420 words)

  
 Cilium
Here we see the model of a segment of the cilium.
http://www.bioanim.com/CellTissueHumanBody6/S3dPages/celCilium2ws.html   (90 words)

  
 Allwords.com Definition of cilium
Any of the short hair-like appendages that project from the surface of certain cells, and whose rhythmic movement aids cell locomotion, or causes movement of the water surrounding some single-celled aquatic organisms.
Your Query of 'cilium' Resulted in 1 Matches
http://www.allwords.com/word-cilium.html   (74 words)

  
 Book mcb
cilium (pl. cilia) Membrane-enclosed motile structure extending from the surface of eukaryotic cells.
Cilia usually occur in groups and beat rhythmically to move a cell (e.g., single-celled organism) or to move small particles or fluid along the surface (e.g., trachea cells).
In prokaryotes, a single, circular double-stranded DNA molecule constitutes the bulk of the genetic material.
http://www.ncbi.nlm.nih.gov/books/bv.fcgi?call=bv.View..ShowSection&rid=mcb.glossdiv.7876   (2113 words)

  
 Actin in the photoreceptor connecting cilium: immunocytochemical localization to the site of outer segment disk ...
Actin was also localized in a new site.
this region of the cilium, the plasma membrane evaginates to form new OS disks and these basal disks were labeled in some instances.
cilium and the remainder of the OS were unlabeled.
http://www.jcb.org/cgi/content/abstract/99/1/239   (579 words)

  
 10-µm Cilium Model Instructions
After making all your selections, when you press ENTER to run the program the display will open into a full screen.
Once you have downloaded the "zipped" files and extracted ("unzipped") them, you are ready to run the Geometric Clutch model program for a 10-µm cilium.
http://www2.oakland.edu/biology/lindemann/instructa.htm   (162 words)

  
 Periciliary Ridge Complex in the Retina of a Xenopus frog
Periciliary ridge complex on the apical surface of the inner segment of a cone cell.
In the upper half of this image, where the section is perpendicular to the cilium, the 1 to 1 correspondence of ridges and ciliary shaft protrusions (ribs) is clearly visible.
From there, the rhodopsin reaches the ROS, possibly along the plasma membrane of the cilium.
http://www.uchc.edu/dsp/Large_Font/LFprc.html   (296 words)

  
 CATHOLIC ENCYCLOPEDIA: Thelepte
From an inscription we learn that it was a colony.
An important network of Roman roads here branches out, joining the city to Cilium and Theveste on the north; the Gafsa and Gabes, on the south.
In the sixth century Thelepte became the residence of the military governor of Byzacene.
http://www.newadvent.org/cathen/14566a.htm   (278 words)

  
 Cilium picture
You really can make money from your site with Google Adsense
Cilium are a fine projection from a eukaryotic cell that constantly beats in one direction.
http://health-pictures.com/cilium-picture.htm   (137 words)

  
 CiteULike: Tag cilium
posted to cavalier-smith cilium ic margulis symbiosis by matzke as
posted to behe cilium ic margulis by matzke as
http://www.citeulike.org/tag/cilium   (45 words)

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