M. Fromm

Publication List Details

Period

1986 - 2009

Number

103

Co-Authors

Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study (2009)

J. Brioude, J. Duron, C. Mari, P. Mascart, ...

This paper analyses a stratospheric injection by deep convection of biomass fire emissions over North America (Alaska, Yukon and Northwest Territories) on 24 June 2004 and its long-range transport...

Atmospheric Chemistry and Physics Discussions (2008)

F. Daerden, N. Larsen, S. Chabrillat, Q. Errera, S. Bonjean, D. Fonteyn, ...

A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations

Revisiting strong coupling QCD at finite temperature and baryon density (2008)

Fromm, M, De Forcrand, Ph

The strong coupling limit ($\beta_{gauge}=0$) of lattice QCD with staggered fermions enjoys the same non-perturbative properties as continuum QCD, namely confinement and chiral symmetry breaking. In...

Revisiting strong coupling QCD at finite temperature and baryon density (2008)

Fromm, M., De Forcrand, Ph.

The strong coupling limit ($\beta_{gauge}=0$) of lattice QCD with staggered fermions enjoys the same non-perturbative properties as continuum QCD, namely confinement and chiral symmetry breaking. In...

Aerosol extinction profiles at 525 nm and 1020 nm derived from ACE imager data: comparisons with GOMOS, SAGE II, SAGE III, POAM III, and OSIRIS (2008)

Vanhellemont, F., Tetard, C., Bourassa, A., Fromm, M., Dodion, J., Fussen, D., ...

The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and...

Aerosol extinction profiles at 525 nm and 1020 nm derived from ACE imager data: comparisons with GOMOS, SAGE II, SAGE III, POAM III, and OSIRIS (2008)

Vanhellemont, F., Tetard, C., Bourassa, A., Fromm, M., Dodion, J., Fussen, D., ...

The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and...

Aerosol extinction profiles at 525 nm and 1020 nm derived from ACE imager data: comparisons with GOMOS, SAGE II, SAGE III, POAM III, and OSIRIS (2008)

F. Vanhellemont, C. Tetard, A. Bourassa, M. Fromm, J. Dodion, D. Fussen, ...

The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and...

Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study (2008)

J. Brioude, J. Duron, C. Mari, P. Mascart, ...

This paper analyses a stratospheric injection by deep convection of biomass fire emissions over North America (Alaska, Yukon and Northwest Territories) on 24 June 2004 and its long-range transport...

The Chisholm firestorm: observed microstructure, precipitation and lightning activity of a pyro-cumulonimbus (2007)

D. Rosenfeld, M. Fromm, J. Trentmann, G. Luderer, M. O. Andreae, R. Servranckx

A fire storm that occurred on 28 May 2001 and devastated the town of Chisholm, ~150 km north of Edmonton, Alberta, induced a violent fire-invigorated cumulonimbus cloud. This pyro-cumulonimbus...

A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations (2007)

F. Daerden, N. Larsen, S. Chabrillat, Q. Errera, S. Bonjean, D. Fonteyn, ...

We present the first detailed microphysical simulations which are performed online within the framework of a global 3-D chemical transport model (CTM) with full chemistry. The model describes the...

Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter (2007)

J. Alfred, M. Fromm, R. Bevilacqua, G. Nedoluha, A. Strawa, L. Poole, ...

The Polar Ozone and Aerosol Measurement and Stratospheric Aerosol and Gas Experiment instruments both observed high numbers of polar stratospheric clouds (PSCs) in the polar region during the second...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

Luderer, G., Trentmann, J., Hungershöfer, K., Herzog, M., Fromm, M., Andreae, M. O.

Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...

Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter (2007)

Alfred, J., Fromm, M., Bevilacqua, R., Nedoluha, G., Strawa, A., Poole, L., ...

The Polar Ozone and Aerosol Measurement and Stratospheric Aerosol and Gas Experiment instruments both observed high numbers of polar stratospheric clouds (PSCs) in the polar region during the second...

A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations (2007)

Daerden, F., Larsen, N., Chabrillat, S., Errera, Q., Bonjean, S., Fonteyn, D., ...

We present the first detailed microphysical simulations which are performed online within the framework of a global 3-D chemical transport model (CTM) with full chemistry. The model describes the...

The Chisholm firestorm: observed microstructure, precipitation and lightning activity of a pyro-cumulonimbus (2007)

Rosenfeld, D., Fromm, M., Trentmann, J., Luderer, G., Andreae, M. O., Servranckx, R.

A fire storm that occurred on 28 May 2001 and devastated the town of Chisholm, ~150 km north of Edmonton, Alberta, induced a violent fire-invigorated cumulonimbus cloud. This pyro-cumulonimbus...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

Luderer, G., Trentmann, J., Hungershöfer, K., Herzog, M., Fromm, M., Andreae, M. O.

Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...

Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter (2007)

Alfred, J., Fromm, M., Bevilacqua, R., Nedoluha, G., Strawa, A., Poole, L., ...

The Polar Ozone and Aerosol Measurement and Stratospheric Aerosol and Gas Experiment instruments both observed high numbers of polar stratospheric clouds (PSCs) in the polar region during the second...

A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations (2007)

Daerden, F., Larsen, N., Chabrillat, S., Errera, Q., Bonjean, S., Fonteyn, D., ...

We present the first detailed microphysical simulations which are performed online within the framework of a global 3-D chemical transport model (CTM) with full chemistry. The model describes the...

The Chisholm firestorm: observed microstructure, precipitation and lightning activity of a pyro-cumulonimbus (2007)

Rosenfeld, D., Fromm, M., Trentmann, J., Luderer, G., Andreae, M. O., Servranckx, R.

A fire storm that occurred on 28 May 2001 and devastated the town of Chisholm, ~150 km north of Edmonton, Alberta, induced a violent fire-invigorated cumulonimbus cloud. This pyro-cumulonimbus...

Validation of 525 nm and 1020 nm aerosol extinction profiles derived from ACE imager data: comparisons with GOMOS, SAGE II, SAGE III, POAM III, and OSIRIS (2007)

Vanhellemont, F., Tetard, C., Bourassa, A., Fromm, M., Dodion, J., Fussen, D., ...

The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

Luderer, G., Trentmann, J., Hungershöfer, K., Herzog, M., Fromm, M., Andreae, M. O.

Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...

Validation of 525 nm and 1020 nm aerosol extinction profiles derived from ACE imager data: comparisons with GOMOS, SAGE II, SAGE III, POAM III, and OSIRIS (2007)

Vanhellemont, F., Tetard, C., Bourassa, A., Fromm, M., Dodion, J., Fussen, D., ...

The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

Luderer, G., Trentmann, J., Hungershöfer, K., Herzog, M., Fromm, M., Andreae, M. O.

Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...

under a Creative Commons License. Atmospheric Chemistry and Physics A 3D-CTM with detailed online PSC-microphysics: analysis of the (2007)

F. Daerden, N. Larsen, S. Chabrillat, Q. Errera, S. Bonjean, D. Fonteyn, ...

Abstract. We present the first detailed microphysical simulations which are performed online within the framework of a global 3-D chemical transport model (CTM) with full chemistry. The model...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

G. Luderer, J. Trentmann, K. Hungershöfer, M. Herzog, M. Fromm, M. O. Andreae

Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...

Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms (2007)

G. Luderer, J. Trentmann, K. Hungershöfer, M. Herzog, M. Fromm, M. O. Andreae

Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many...

Validation of 525 nm and 1020 nm aerosol extinction profiles derived from ACE imager data: comparisons with GOMOS, SAGE II, SAGE III, POAM III, and OSIRIS (2007)

F. Vanhellemont, C. Tetard, A. Bourassa, M. Fromm, J. Dodion, D. Fussen, ...

The Canadian ACE (Atmospheric Chemistry Experiment) mission is dedicated to the retrieval of a large number of atmospheric trace gas species using the solar occultation technique in the infrared and...

The hemisphere-scale stratospheric impact of the Chisholm (Alberta) pyrocumulonimbus eruption. (2007)

Fromm, M., Barnes, J., Blum, U., Diner, D., Fricke, K.H., Gerding, M., ...

American Geophysical Union (AGU) Fall Meeting, San Francisco, Calif., December 11-15, 2006

A case study of pyro-convection using transport model and remote sensing data (2006)

R. Damoah, N. Spichtinger, R. Servranckx, M. Fromm, E. W. Eloranta, I. A. Razenkov, ...

Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×106 ha) in the year 2004 was the highest on record...

Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter (2006)

Alfred, J., Fromm, M., Bevilacqua, R., Nedoluha, G., Strawa, A., Poole, L., ...

The Polar Ozone and Aerosol Measurement and Stratospheric Aerosol and Gas Experiment instruments both observed high numbers of polar stratospheric clouds (PSCs) in the polar region during the second...

The Chisholm firestorm: observed microstructure, precipitation and lightning activity of a pyro-Cb (2006)

Rosenfeld, D., Fromm, M., Trentmann, J., Luderer, G., Andreae, M. O., Servranckx, R.

A fire storm that occured on 28 May 2001 devastated the town of Chisholm, ~150 km north of Edmonton, Alberta, induced a violent fire-invigorated cumulonimbus cloud. This pyro-cumulonimbus (pyro-Cb)...

A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations (2006)

Daerden, F., Larsen, N., Chabrillat, S., Errera, Q., Bonjean, S., Fonteyn, D., ...

We present the first detailed microphysical simulations which are performed online within the framework of a global 3-D chemical transport model (CTM) with full chemistry. The model describes the...

A case study of pyro-convection using transport model and remote sensing data (2006)

Damoah, R., Spichtinger, N., Servranckx, R., Fromm, M., Eloranta, E. W., Razenkov, I. A., ...

Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×106 ha) in the year 2004 was the highest on record to...

Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter (2006)

Alfred, J., Fromm, M., Bevilacqua, R., Nedoluha, G., Strawa, A., Poole, L., ...

The Polar Ozone and Aerosol Measurement and Stratospheric Aerosol and Gas Experiment instruments both observed high numbers of polar stratospheric clouds (PSCs) in the polar region during the second...

The Chisholm firestorm: observed microstructure, precipitation and lightning activity of a pyro-Cb (2006)

Rosenfeld, D., Fromm, M., Trentmann, J., Luderer, G., Andreae, M. O., Servranckx, R.

A fire storm that occured on 28 May 2001 devastated the town of Chisholm, ~150 km north of Edmonton, Alberta, induced a violent fire-invigorated cumulonimbus cloud. This pyro-cumulonimbus (pyro-Cb)...

A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations (2006)

Daerden, F., Larsen, N., Chabrillat, S., Errera, Q., Bonjean, S., Fonteyn, D., ...

We present the first detailed microphysical simulations which are performed online within the framework of a global 3-D chemical transport model (CTM) with full chemistry. The model describes the...

A case study of pyro-convection using transport model and remote sensing data (2006)

Damoah, R., Spichtinger, N., Servranckx, R., Fromm, M., Eloranta, E. W., Razenkov, I. A., ...

Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×106 ha) in the year 2004 was the highest on record to...

Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter (2006)

J. Alfred, M. Fromm, R. Bevilacqua, G. Nedoluha, A. Strawa, L. Poole, ...

The Polar Ozone and Aerosol Measurement and Stratospheric Aerosol and Gas Experiment instruments both observed high numbers of polar stratospheric clouds (PSCs) in the polar region during the second...

Abstract E-cadherin is essential for in vivo epidermal barrier function by regulating tight junctions. (2005)

Tunggal,J.A., Helfrich,I., Schmitz,A., Schwarz,Heinz, Gunzel,D., Fromm,M., ...

Cadherin adhesion molecules are key determinants of morphogenesis and tissue architecture. Nevertheless, the molecular mechanisms responsible for the morphogenetic contributions of cadherins remain...

Aerosol optical depth measurements by airborne sun photometer in SOLVE II: Comparisons to SAGE III, POAM III and airborne spectrometer measurements (2005)

P. Russell, J. Livingston, B. Schmid, J. Eilers, R. Kolyer, J. Redemann, ...

The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) measured solar- beam transmission on the NASA DC-8 during the second SAGE III Ozone Loss and Validation Experiment (SOLVE II). This...

Abstract E-cadherin is essential for in vivo epidermal barrier function by regulating tight junctions. (2005)

Tunggal, J.A., Helfrich, I., Schmitz, A., Schwarz, Heinz, Gunzel, D., Fromm, M., ...

Cadherin adhesion molecules are key determinants of morphogenesis and tissue architecture. Nevertheless, the molecular mechanisms responsible for the morphogenetic contributions of cadherins remain...

Transport Modelling of a pyro-convection event in Alaska (2005)

Damoah, R., Spichtinger, N., Servranckx, R., Fromm, M., Eloranta, E. W., Razenkov, I. A., ...

Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×106 ha) in the year 2004 was the highest on record to...

Aerosol optical depth measurements by airborne sun photometer in SOLVE II: Comparisons to SAGE III, POAM III and airborne spectrometer measurements (2005)

Russell, P., Livingston, J., Schmid, B., Eilers, J., Kolyer, R., Redemann, J., ...

The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) measured solar- beam transmission on the NASA DC-8 during the second SAGE III Ozone Loss and Validation Experiment (SOLVE II). This...

Transport Modelling of a pyro-convection event in Alaska (2005)

Damoah, R., Spichtinger, N., Servranckx, R., Fromm, M., Eloranta, E. W., Razenkov, I. A., ...

Summer 2004 saw severe forest fires in Alaska and the Yukon Territory that were mostly triggered by lightning strikes. The area burned (>2.7×106 ha) in the year 2004 was the highest on record to...

Aerosol optical depth measurements by airborne sun photometer in SOLVE II: Comparisons to SAGE III, POAM III and airborne spectrometer measurements (2005)

Russell, P., Livingston, J., Schmid, B., Eilers, J., Kolyer, R., Redemann, J., ...

The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) measured solar- beam transmission on the NASA DC-8 during the second SAGE III Ozone Loss and Validation Experiment (SOLVE II). This...

Aerosol optical depth measurements by airborne sun photometer in SOLVE II: Comparisons to SAGE III, POAM III and airborne spectrometer measurements (2004)

Russell, P., Livingston, J., Schmid, B., Eilers, J., Kolyer, R., Redemann, J., ...

The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) measured solar-beam transmission on the NASA DC-8 during the Second SAGE III Ozone Loss and Validation Experiment (SOLVE II). This...

Aerosol optical depth measurements by airborne sun photometer in SOLVE II: Comparisons to SAGE III, POAM III and airborne spectrometer measurements (2004)

Russell, P., Livingston, J., Schmid, B., Eilers, J., Kolyer, R., Redemann, J., ...

The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) measured solar-beam transmission on the NASA DC-8 during the Second SAGE III Ozone Loss and Validation Experiment (SOLVE II). This...

Aerosol optical depth measurements by airborne sun photometer in SOLVE II: Comparisons to SAGE III, POAM III and airborne spectrometer measurements (2004)

P. Russell, J. Livingston, B. Schmid, J. Eilers, R. Kolyer, J. Redemann, ...

The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) measured solar-beam transmission on the NASA DC-8 during the Second SAGE III Ozone Loss and Validation Experiment (SOLVE II). This...

Chemical Bonds Broken in Latent Tracks of Light Ions in Plastic Track Detectors (2002)

Barillon, R., Fromm, M., Katz, Robert, Chambaudet, A.

When a swift ion is slowed down through a plastic detector it creates a latent track. In nuclear track detectors, this latent track can be specifically etched by an appropriate chemical solution....

Investigation of Radiation Damage in DNA by Using Atomic Force Microscopy (2002)

Boichot, S., Fromm, M., Cunniffe, S., O'Neill, P., C. Labrune, J., Chambaudet, A., ...

The effect of radiations on supercoiled plasmid DNA has been investigated by using atomic force microscopy (AFM). The DNA molecules were deposited on a substrate and observed by AFM. Alternatively,...

Chemical Bonds Broken in Latent Tracks of Light Ions in Plastic Track Detectors (2002)

Barillon, R., Fromm, M., Katz, R., Chambaudet, A.

When a swift ion is slowed down through a plastic detector it creates a latent track. In nuclear track detectors, this latent track can be specifically etched by an appropriate chemical solution....

Ion-Kill Dosimetry (2000)

Katz, Robert, Cucinotta, F. A., Fromm, M., Chambaudet, A.

Unanticipated late effects in neutron and heavy ion therapy, not attributable to overdose, imply a qualitative difference between low and high LET therapy. We identify that difference as 'ion kill',...

A New Method for Reading CR-39 by Using Coherent Light Scattering (1999)

Groetz, J.E., Lacourt, A., Meyer, P., Fromm, M., Chambaudet, A., Potter, J.

A new type of measurement has been proposed to evaluate the solid state nuclear track detector (SSNTD) CR-39 response in neutron dosimetry. It is based on coherent light scattering (He-Ne laser) by...

Frictional Properties of SiC for Several Kinds of Metals. (1998)

Takadoum, J., Zsiga, Z., Mairey, D., Fromm, M.

This paper concerned mmc in some important way and contained information about, utilized, or discussed these subjects: basic topics:, experimental, mmc, summary materials and material types:, sic/al...

Frictional Properties of SiC for Several Kinds of Metals. (1998)

Takadoum, J., Zsiga, Z., Mairey, D., Fromm, M.

A previous work studied the influence of the residual-humidity level (RHL) on the friction and wear of several ceramic/metal couples (Al2O3,Si3N4, partially stabilized zirconia (PSZ) against...

Simulation of a Microdosimetry Problem: Behavior of a Pseudorandom Series at a Low Probability (1997)

Meyer, P., Groetz, J. E., Katz, Robert, Fromm, M., Chambaudet, A.

The carcinogenic effects for low dose irradiations are not very well known. Estimations usually are made based on the effects observed at high doses that are then extrapolated to low doses. To...

Expression of mRNA electroporated into plant and animal cells (1987)

Cellis, J., Fromm, M., Walbot, V.

A general method to introduce RNA molecules into plant protoplasts and animal cells is described. This technique utilizes the ability of electric pulses of high field strength to form pores in...

Detection of Low Energy Alpha Particles and Neutron Induced Protons Using LR 115 Track Etch Detectors (1986)

Le Thanh, P., Chambaudet, A., Fromm, M.

In this work the feasibility of using cellulose nitrate film (LR 115) as an efficient proton detector for application in neutron dosemeters is demonstrated. Proton detection efficiency in LR 115 was...

Photoregulation of a phytochrome gene promoter from oat transferred into rice by particle bombardment.

Bruce, W B, Christensen, A H, Klein, T, Fromm, M, Quail, P H

The regulatory photoreceptor phytochrome controls the transcription of its own phy genes in a negative feedback fashion. We have exploited microprojectile-mediated gene transfer to develop a rapid...

Expression of mRNA electroporated into plant and animal cells.

Callis, J, Fromm, M, Walbot, V

A general method to introduce RNA molecules into plant protoplasts and animal cells is described. This technique utilizes the ability of electric pulses of high field strength to form pores in...

Simian virus 40 early- and late-region promoter functions are enhanced by the 72-base-pair repeat inserted at distant locations and inverted orientations.

Fromm, M, Berg, P

Tandemly repeated 72-base-pair (bp) segments located between nucleotides 107 and 250 of the simian virus 40 genome are essential for early region transcription. The functional requirement for the...

Complex regulation of simian virus 40 early-region transcription from different overlapping promoters.

Buchman, A R, Fromm, M, Berg, P

During simian virus 40 lytic infection there is a shift in initiation sites used to transcribe the early region, which encodes large T and small t antigens. Early in infection, transcription is...

Expression of genes transferred into monocot and dicot plant cells by electroporation.

Fromm, M, Taylor, L P, Walbot, V

We have developed a general method for electrically introducing DNA into plant cells. Gene transfer occurs when a high-voltage electric pulse is applied to a solution containing protoplasts and DNA....

Aeromonas hydrophila Beta-Hemolysin Induces Active Chloride Secretion in Colon Epithelial Cells (HT-29/B6)

Epple, H. J., Mankertz, J., Ignatius, R., Liesenfeld, O., Fromm, M., Zeitz, M., ...

The diarrheal mechanisms in Aeromonas enteritis are not completely understood. In this study we investigated the effect of aeromonads and of their secretory products on ion secretion and barrier...

Photoregulation of a phytochrome gene promoter from oat transferred into rice by particle bombardment.

Bruce, W B, Christensen, A H, Klein, T, Fromm, M, Quail, P H

The regulatory photoreceptor phytochrome controls the transcription of its own phy genes in a negative feedback fashion. We have exploited microprojectile-mediated gene transfer to develop a rapid...

Expression of mRNA electroporated into plant and animal cells.

Callis, J, Fromm, M, Walbot, V

A general method to introduce RNA molecules into plant protoplasts and animal cells is described. This technique utilizes the ability of electric pulses of high field strength to form pores in...

Simian virus 40 early- and late-region promoter functions are enhanced by the 72-base-pair repeat inserted at distant locations and inverted orientations.

Fromm, M, Berg, P

Tandemly repeated 72-base-pair (bp) segments located between nucleotides 107 and 250 of the simian virus 40 genome are essential for early region transcription. The functional requirement for the...

Complex regulation of simian virus 40 early-region transcription from different overlapping promoters.

Buchman, A R, Fromm, M, Berg, P

During simian virus 40 lytic infection there is a shift in initiation sites used to transcribe the early region, which encodes large T and small t antigens. Early in infection, transcription is...

Expression of genes transferred into monocot and dicot plant cells by electroporation.

Fromm, M, Taylor, L P, Walbot, V

We have developed a general method for electrically introducing DNA into plant cells. Gene transfer occurs when a high-voltage electric pulse is applied to a solution containing protoplasts and DNA....

Aeromonas hydrophila Beta-Hemolysin Induces Active Chloride Secretion in Colon Epithelial Cells (HT-29/B6)

Epple, H. J., Mankertz, J., Ignatius, R., Liesenfeld, O., Fromm, M., Zeitz, M., ...

The diarrheal mechanisms in Aeromonas enteritis are not completely understood. In this study we investigated the effect of aeromonads and of their secretory products on ion secretion and barrier...

Epithelial barrier and ion transport in coeliac sprue: electrical measurements on intestinal aspiration biopsy specimens.

Schulzke, J D, Schulzke, I, Fromm, M, Riecken, E O

Epithelial barrier function and ion transport was studied in coeliac sprue using a miniaturised Ussing device for measurements on diagnostic aspiration biopsy specimens from the jejunum of untreated...

Adaptation of the jejunal mucosa in the experimental blind loop syndrome: changes in paracellular conductance and tight junction structure.

Schulzke, J D, Fromm, M, Bentzel, C J, Menge, H, Riecken, E O

Self-filling blind loops of rat jejunum exhibit hyperregenerative transformation of the mucosa. We used this experimental model to characterise mechanisms, which may occur under similar conditions in...

Impairment of epithelial transport but not of barrier function in idiopathic pouchitis after ulcerative colitis

Kroesen, A J, Stockmann, M, Ransco, C, Schulzke, J D, Fromm, M, Buhr, H J

Background and aims: Little is known of the permeability of ileoanal pouches. Hence the aim of the present study was to determine changes in permeability and mucosal function after ileo-pouchanal...

Downregulation of epithelial apoptosis and barrier repair in active Crohn’s disease by tumour necrosis factor α antibody treatment

Zeissig, S, Bojarski, C, Buergel, N, Mankertz, J, Zeitz, M, Fromm, M, ...

Background and aims: Barrier dysfunction is an important feature contributing to inflammation and diarrhoea in Crohn’s disease (CD). Recently, tumour necrosis factor α (TNF-α) antibodies were...

Localization of cAMP- and aldosterone-induced K+ secretion in rat distal colon by conductance scanning

Grotjohann, I, Gitter, A H, Köckerling, A, Bertog, M, Schulzke, J D, Fromm, M

Aldosterone- and adrenaline-induced K+ secretion were investigated in rat late distal colon using conductance scanning and Ussing chamber techniques. K+ secretion was unmasked by the K+ channel...

Permeability of human HT-29/B6 colonic epithelium as a function of apoptosis

Bojarski, C, Gitter, A H, Bendfeldt, K, Mankertz, J, Schmitz, H, Wagner, S, ...

The barrier function of colonic epithelia is challenged by apoptotic loss of enterocytes. In monolayers of human colonic HT-29/B6 cells, apoptosis induced by camptothecin was assessed by...

Single-cell epithelial defects close rapidly by an actinomyosin purse string mechanism with functional tight junctions

Florian, P, Schöneberg, T, Schulzke, J D, Fromm, M, Gitter, A H

Restitution of single-cell defects, a frequent event in epithelia with high turnover, is poorly understood. Morphological and functional changes were recorded, using intravital time-lapse video...