biological pictures from all over the world!

biopictures at pinterest

2012-05-17T21:03:00.000+03:00

Now I'm also at pinterest and I think you may be interested in my board science.

There are lots of wonderful biology-pictures.

Have a nice day!

Frozen Human Colon Tissue Section

2012-05-16T18:12:00.000+03:00

A frozen human colon tissue section was stained for actin (green) and the epithelial marker A33 (red). Nuclei were stained blue. The image was obtained using a Zeiss LSM 510 confocal microscope (x40 objective). Bar, 25 mkm.
The winning image of month's Nature Cell Biology and Nature Reviews Molecular Cell Biology 'Cell of the Month' competition was submitted by Cécile Chalouni (Ludwig Cancer Research Institute, Yale University School of Medicine, USA

From Nature Reviews Molecular Cell Biology 5, 873 (November 2004) | doi:10.1038/nrm1539
http://www.nature.com/nrm/journal/v5/n11/full/nrm1539.html

Picture from BU page

2012-05-16T17:56:00.000+03:00

That beautiful picture was found at the http://www.bu.edu/mcbb/ page. Unfortunately I haven't found any description or author of it...

Human neural stem cells transplanted into mice

2012-05-04T18:03:00.001+03:00

Human neural stem cells transplanted into mice grew into neural tissue cells, such as oligodendrocytes. (Credit: Brian Cummings / UCI)/ Thanks to http://www.sciencedaily.com/releases/2010/08/100819144440.htm:

ScienceDaily (Aug. 19, 2010) — A UC Irvine study is the first to demonstrate that human neural stem cells can restore mobility in cases of chronic spinal cord injury, suggesting the prospect of treating a much broader population of patients.

Beautiful Brain (MRI)

2012-05-04T17:57:00.000+03:00

So nice! The picture from http://www.scientificamerican.com/slideshow.cfm?id=brain-art-shows-off-neuroscience-aesthetic-side and comment:

The brain is a monotone mass of neurons that is often difficult to pick apart, even on a dissection table. Yet through a technique called diffusion MRI, which measures the spread of water molecules through neural tissue, researchers can add revealing color to the maze of connections.

Ultra-strong magnetic fields on the order of 7 teslas (about 1,400 times stronger than a refrigerator magnet) manipulate the water molecules along tracks of white matter neurons, breaking the movement into three basic directions.

Left–right tracks of neural tissue are represented by red, front–back tracks by green and top–bottom tracks by blue. Each track winds around in a specific way, lending it a unique color. Functional clusters of white matter emerge as colored regions.

"It's a smart way to transform something so complex into something simple and immediately comprehensible," Margulies says of the diffusion MRI technique. [Link to this slide]
Alfred Anwander and Robin M. Heidemann/The Neuro Bureau

Neural Stem Cells

2012-04-04T12:26:00.001+03:00

Found at http://www.gurdon.cam.ac.uk/images/brand/brand09-fig4.jpg. Unfortunately the source of the picture is not mentioned... Neural stem cells are marvelous!

brain neurons generated from adult neural stem cells

2012-04-03T16:22:00.001+03:00

Production of brain neurons (red) generated from adult neural stem cells (green) can alter brain activity patterns underlying depression. Thanks to Leslie Meltzer & http://med.stanford.edu/mcr/2007/deisseroth-0711.html. Also from the article:

Leslie Meltzer, neurosciences graduate student and co-first author, searched for the cellular basis of these changes in circuitry. An obvious place to start, she said, was to look at the formation of new neurons in the hippocampus, a process that neuroscientists have suggested is at the root of how antidepressants work. What they found was that the growth of new neurons could account for the behavioral improvements seen from treatment as well as the circuitry changes. The converse was not true: Fewer new neurons in that region did not equal depression.
In other words, in their model system, the two states appear to funnel through a common pathway—despite very different cellular mechanisms.

Nice Neuron

2012-04-03T16:13:00.000+03:00

http://www.wadsworth.org/cores/alm/gallery.htm Beautifil neuron, isn't it? Thanks to Natalie Dowell-Mesfin BMS-PhD student

Ovaries Immunocytochemistry

2012-03-29T14:57:00.000+03:00

Beautiful ovaries! Green - Laminin, Red - Collegen Type II, Blue - Dappi.

Thanks to https://bcrc.bio.umass.edu/courses/fall2011/biol/biol523/content/ovaries-immunocytochemistry-1

Immunocytochemistry of Multicellular Aggregates

2012-03-29T14:48:00.000+03:00

Wonderful image the paper Development of a Three-Dimensional In Vitro Model for Longitudinal Observation of Cell Behavior: Monitoring by Magnetic Resonance Imaging and Optical Imaging

by Kruttwig, Klaus; Brueggemann, Chantal; Kaijzel, Eric; Vorhagen, Susanne; Hilger, Thomas; Löwik, Clemens; Hoehn, Mathias
Journal: Molecular Imaging and Biology Vol. 12 Issue 4
DOI: 10.1007/s11307-009-0289-x
Published: 2010-06-29
Institution(s): Max-Planck-Institute for Neurological Research, Leiden University Medical Centrum, University Clinics Cologne

Description: Immunocytochemistry of multicellular aggregates in the agarose-based phantom. Aggregates were cultured on an adhesive surface and stained for the presence of dextran (green) (a, c) and vimentin (green) (b) to detect intermediary filaments. mCherry expression is displayed in red and the nuclei are stained with Hoechst Dye 33342 (blue). The distribution of the superparamagnetic beads inside cells, after 24 h exposure to the MRI contrast agent Endorem, displays on a DAB-enhanced Prussian blue staining (d) that individual cells can be effectively labeled in this culture model. Scale bars a, b, 25 µm; c10 µm; d 50 µm.

More information at http://www.springerimages.com/Images/MedicineAndPublicHealth/1-10.1007_s11307-009-0289-x-0

Glomerulus 40x

2012-03-16T01:07:00.001+02:00

Thanks to http://neuroanatomist.tumblr.com/post/19238136942/glomerulus-40x
Isn't that tissue sample beautiful? I think it's H&E staining...

Golgi Apparatus

2012-03-12T22:20:00.000+02:00

My favorite organelle :)

A transmission electron micrograph of a Golgi apparatus (Read more: Membrane Proteins - Biology Encyclopedia - cells, body, function, human, different, blood, hormone, specific, structure http://www.biologyreference.com/Ma-Mo/Membrane-Proteins.html#b#ixzz1ow5H8ePO)

Wide-field microscope image showing distinct components of the Golgi apparatus labelled in red (GM130) and green (giantin), with the nucleus in blue.
David Stephens, Department of Biochemistry

http://www.bristol.ac.uk/biochemistry/mrccif/golgi.html

Happy Valentine's Day! (for biologists)

2012-02-14T01:24:00.002+02:00

Cute result of electrophoresis isn't it? :)

Thanks to http://www.gather.com/viewArticle.action?articleId=281474979044669

1 year!

2012-02-12T00:41:00.002+02:00

HEY GUYS!

We have a Birthday today!

1 year!

Thank you for reading and take care!

Biology forever :)

Cell Surface-Capturing (CSC) method

2012-02-05T02:25:00.000+02:00

The “Cell Surface-Capturing” (CSC) method enables hundreds of cell-surface proteins to be analyzed simultaneously. In order to produce this image, the proteins at the cell surface were labeled with green dye to make them visible; the cell nuclei are stained blue. (Photo: Wollscheid group/ETH Zurich)

Thnx to http://insciences.org/article.php?article_id=5454

Planococcus citri bacteriocytes

2012-02-05T02:21:00.001+02:00

Looks cute! That's an artificially colorized TEM of Planococcus citri bacteriocytes. Tremblaya cells are colored dark blue, Moranella cells are red, the mealybug cytoplasm is grey, and the mealybug nucleus is green. Bar = 2.33 μm. Source.

Beautiful Neuron in Culture (with growing neurites)

2012-01-27T16:40:00.000+02:00

Mouse neuron showing multiple neuritis with fan-shaped growth cones.

Led by Richard Klemke, Ph.D., professor of pathology at UCSD School of Medicine and the Moores UCSD Cancer Center, the research team designed a new technology enabling them to, for the first time, isolate and purify neurites – long membrane extensions from the neuron that give rise to axons or dendrites. This technological breakthrough opens the door to understanding how neurites form and differentiate to regenerate neuronal connections and give rise to a functioning network. It also led to the discovery of how two key signaling molecules are regulated by a complex protein network that controls neurite outgrowth. Their study will be published the week of January 28 to February 1 in the on-line, early edition of the journal Proceedings of theNationalAcademy of Science.

Information from http://ucsdnews.ucsd.edu/newsrel/health/01-08NeuronFunction.asp

An Achievement

2012-01-23T01:31:00.003+02:00

10 000 pageviews! Thank you, guys!

Mosaic Egg Chamber (Drosophila)

2012-01-12T12:37:00.000+02:00

Here is a confocal image of the stage-9 hntXE81 mosaic egg chamber. Follicle cells with hnt mutantion (marked by the absence of GFP, shown in green) had smaller nuclei (marked by DAPI staining in blue) and upregulated Ci-155 expression (shown in red) comparing to the adjacent wild-type cells, indicating that hntmutation causes defects in the mtitotic cycle/endocycle switch and proper downregulation of Hh signaling respectively.

I've found it at http://bio.fsu.edu/~denglab/ There are more cute pictures of cells.

Brother(or sister)-blog About Cell Pictures

2012-01-10T22:23:00.000+02:00

Dear friends and colleagues!
Today is a great day because I've found one of the prettiest blogs with cell biology images.
Ta-daaa: http://highmagblog.blogspot.com/. I think we should meet someday! :)

Paramecium Caudatum Again

2012-01-09T23:42:00.001+02:00

One more picture of these beautiful creatures (Conjugation in Paramecium X 200). Thanks to http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20102/bio%20102%20lectures/protists/protists.htm
Also you can find some Paramecium pictures at http://biopictures.blogspot.com/2011/05/paramecium-caudatum.html

RNA Polymerase II

2012-01-06T00:33:00.000+02:00

Isn't this RNA Polymerase II molecule beautiful?

RNA Polymerase II ID Number 2484 from National Institute of General Medicine Image Library NIGMS.

Thanks to http://knol.google.com/k/krishan-maggon/stem-cell-therapy-for-spinal-cord-injury/3fy5eowy8suq3/149#

Mitotic gif!

2012-01-04T00:18:00.000+02:00

Sorry, I don't know who is the author of this beautiful gif.

For Christmas & New Year

2011-12-22T11:11:00.001+02:00

Happy Holidays!
thnx http://holykaw.alltop.com/petri-dish-christmas-ornaments for the picture

Kinetochore attachment to microtubules

2011-12-20T13:48:00.002+02:00

Spindly regulates kinetochore (green) attachment to microtubules (red) during mitosis in C. elegans.

DESAI

The picture from the work about the microtubule-binding machinery of kinetochores (Arshad Desai (Ludwig Institute for Cancer Research, University of California, San Diego)). The dynein/dynactin microtubule motor complex is recruited to kinetochores by a conserved coil–coil protein called spindly. Spindly also seems to mediate lateral interactions between unattached kinetochores and microtubules, important for chromosome positioning and segregation during mitosis.

More information at http://jcb.rupress.org/content/184/2/190.full