Person

Joan Goulley

This person is no longer with EPFL

Related publications (10)

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Aims/hypothesis It is generally accepted that structural and functional quantitative imaging of individual islets would be beneficial to elucidate the pathogenesis of type 1 diabetes. We here introduce functional optical coherence imaging (FOCI) for fast, ...

Springer Verlag2016

Bicaudal C1 promotes pancreatic NEUROG3+ endocrine progenitor differentiation and ductal morphogenesis

Daniel Constam, Jacques Rougemont, Anne Grapin-Botton, Joan Goulley, Laurence Anne E Lemaire, Yung Hae Kim

In human, mutations in bicaudal C1 (BICC1), an RNA binding protein, have been identified in patients with kidney dysplasia. Deletion of Bicc1 in mouse leads to left-right asymmetry randomization and renal cysts. Here, we show that BICC1 is also expressed i ...

Company Of Biologists Ltd2015

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Diabetes is characterized by hyperglycemia that can result from the loss of pancreatic insulin secreting β-cells in the islets of Langerhans. We analyzed ex vivo the entire gastric and duodenal lobes of a murine pancreas using extended-focus Optical Cohere ...

2012

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We introduce photothermal optical lock-in Optical Coherence Microscopy (poli-OCM), a volumetric imaging technique, which combines the depth sectioning of OCM with the high sensitivity of photothermal microscopy while maintaining the fast acquisition speed ...

Optical Society of America2012

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Endocrine beta cells produce and release insulin in order to tightly regulate glucose homeostasis and prevent metabolic pathologies such as Diabetes Mellitus. Optical imaging has contributed greatly to our current understanding of beta cell structure and f ...

Bentham Science Publishers2010

In vivo imaging of pancreatic endocrine islets

Theo Lasser, Christophe Pache, Michael Friedrich, Rainer Leitgeb, Anne Grapin-Botton, Martin Villiger, Joan Goulley

Extended focus optical coherence microscope (xfOCM) circumvents the compromise between lateral resolution and depth of field by us of a Bessel-like illumination beam. The high sensitivity and parallel depth profiling of Fourier domain optical coherence tom ...

SPIE2009

In vivo imaging of murine endocrine islets of Langerhans with extended-focus optical coherence microscopy

Theo Lasser, Michael Friedrich, Rainer Leitgeb, Anne Grapin-Botton, Martin Villiger, Joan Goulley

Aims/hypothesis Structural and functional imaging of the islets of Langerhans and the insulin-secreting beta cells represents a significant challenge and a long-lasting objective in diabetes research. In vivo microscopy offers a valuable insight into beta ...

Springer Verlag2009

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Rapid acquisition of volumetric data is a mandatory prerequisite for small animal in vivo imaging. Due to its high sensitivity and capacity to extract the sample depth profile in parallel Fourier Domain Optical Coherence Tomography (FDOCT) complies with th ...

2009

Fourier Domain Optical Coherence Microscopy with Extended Depth of Field

Theo Lasser, Cathrin Brisken, Yann Barrandon, Marcel Leutenegger, Rainer Leitgeb, Martin Villiger, Adrian Bachmann, Joan Goulley, Lukas Steinmann

Fourier Domain Optical Coherence Tomography (FDOCT) is a high speed biomedical imaging modality which extracts the sample structure in depth. The axial resolution is given by the coherence length of the employed light source. The lateral resolution on the ...

2008

Towards in vivo small animal imaging

Theo Lasser, Michael Friedrich, Rainer Leitgeb, Anne Grapin-Botton, Martin Villiger, Joan Goulley

Fourier domain Optical coherence microscopy (FDOCM) offers excellent sensitivity and high axial resolution to image the structure of biological tissue. The depth information is extracted in parallel and allows very high volume acquisition rates. An illumin ...

2008

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