Amy Tsai, Ph.D. 
Professor
La Jolla Bioengineering Institute
La Jolla, California 
email

 

 

 

 

EDUCATION

1989

University of California
San Diego, CA

Ph.D.

Engineering Sciences (Bioengineering)

1985

University of California
San Diego, CA

M.S.

Engineering Sciences (Bioengineering)

1984

University of California
San Diego, CA

B.S.

Engineering Sciences (Bioengineering)
Minor: Chinese Studies

SELECTED PUBLICATIONS 

Tsai, A.G., Lindbom, L., Arfors, K.-E. and M. Intaglietta. “The effect of vasomotion on exchange in the microvascular network.” In: Microvascular Networks: Experimental and Theoretical Studies. (A. Popel and P. Johnson Eds.). pp 99-111, Karger, Basel 1986.

Fagrell, B., Aver, S., Intaglietta, M. and A.G. Tsai. “Changes of activated partial thromboplastin time during constant intravenous and fixed intermittent subcutaneous administration.” J. Internal Med. 225:257-260, 1989.

Tsai, A.G. and M. Intaglietta.”"Local tissue oxygenation during constant red blood cell flux: A discrete source analysis of velocity and hematocrit changes.” Microvas. Res. 37:308-322, 1989.

Tsai, A.G., Arfors, K.-E. and M. Intaglietta: “Spatial distribution of red blood cells in individual skeletal muscle capillaries during extreme hemodilution.” Int. J. Microcirc.: Clin. Exp. 10:317-334, 1991.

Tsai, A.G. and M. Intaglietta: “Changes in tissue oxygenation when subjected to statistically distributed sources.” Microvasc. Res. 44(2):200-13, 1992.

Tsai, A.G., Nolte, D., Messmer, K. and M. Intaglietta: “Effect of OxygentTM (Perflubron emulsion) on leukocyte-endothelial interaction in postcapillary venules.” Biomat., Art. Cells & Immob. Biotech. 20(2-4):959-61, 1992.

Tsai, A.G. and M. Intaglietta: “Evidence of flowmotion induced changes in local tissue oxygenation.” Int. J. Microcirc.:Clin. Exp. 12(1):75-88, 1993.

Friesenecker, B., Tsai, A.G., Allegra, C. and M. Intaglietta. "Oral administration of purified micronized flavonoid fraction suppresses leukocyte adhesion in ischemia-reperfusion injury: In vivo observations in the hamster skinfold.” Int. J. Microcirc. 14:50-55, 1994.

Friesenecker, B., Tsai, A.G. and M. Intaglietta. “Capillary perfusion during ischemia reperfusion in subcutaneous connective tissue and skin muscle.” Am. J. Physiol. 267(Heart. Circ. Physiol. 36):H2204-2212, 1994.

Tsai, A.G., Friesenecker, B., Winslow, R.M. and M. Intaglietta. “Functional capillary density changes during blood substitution with ""Hb and dextran 70: Influence on oxygen delivery.” Art. Cells, Blood Substitutes, and Immob. Biotech. 22(3):841-847, 1994.

Friesenecker, B., Tsai, A.G. and M. Intaglietta. “Cellular basis of inflammation, edema and the activity of Daflon 500 mg.” Int. J. Microcirc.: Clin. Exp. 15(suppl. 1):17-21, 1995.

Tsai, A.G., Friesenecker, B. and M. Intaglietta. “Capillary flow impairment and functional capillary density.” Int. J. Microcirc.: Clin. Exp. 15(suppl. 5):238-243, 1995.

Kerger, H., Tsai, A.G., Saltzman, D., Winslow, R.M. and M. Intaglietta. “Fluid resuscitation with O2 versus non- O2 carriers after 2-hr hemorrhagic shock in conscious hamsters.” Am. J. Physiol. 270 (Heart. Circ. Physiol. 39):H827-H36, 1996.

Kerger, H., Saltzman, D.J., Gonzales, A., Tsai, A.G., Van Ackern, K., Winslow, R.M. and M. Intaglietta. “Microvascular oxygen delivery and interstitial oxygenation during sodium pentobarbital anesthesia.” Anesthesiol. 86:372-386, 1997.

Sakai, H. Tsai, A.G., Kerger, H., Park, S.I., Takeoka, S., Nishide H., Tsuchida, E. and M. Intaglietta. “Subcutaneous microvascular responses to hemodilution with a red cell substitute consisting of polyethyleneglycolmodified vesicles encapsulating hemoglobin.” J. Biomed. Mater. Res. 40:66-78, 1998.

Buerk, D.G., Tsai, A.G., Intaglietta, M. and P.C. Johnson. “Comparing tissue pO2 measurements by recessed microelectrode and phosphorescence quenching.” Adv. Exp. Med. 367-374, 1998.

Tsai, A.G., Kerger, H. and M. Intaglietta. “Microcirculatory consequences of blood substitution with hemoglobin solutions.” In: Red Blood Cell Substitutes.  Basic Principles and Clinical Applications. (A.S. Rudolph, R. Rabinovich, G.Z. Feurestein, eds.) Marcel Dekker, Inc. New York, pp. 69-78, 1998.

Tsai, A.G., Friesenecker, B., Mazzoni, M.C., Kerger, H., Buerk, D.G., Johnson, P.C. and M. Intaglietta. “Microvascular and tissue oxygen gradients in the rat mesentery.” Proc. Natl. Acad. Sci. USA. 95:6590-6595, 1998.

Tsai, A.G., Kerger, H. and M. Intaglietta. “Oxygen distribution and consumption by the microcirculation and the determinants of tissue survival.” In: Tissue Oxygenation in Acute Medicine (W.J. Sibald, K. Messmer, M.P. Fink, eds.) Springer, Berlin pp. 55-62, 1998.

Buerk, D.G., Tsai, A.G., Intaglietta, M. and P.C. Johnson. “In vivo tissue pO2 measurements in hamster skinfold by recessed pO2 microelectrodes and phosphorescence quenching are in agreement.” Microcirc. 5:219-225, 1998.

Tsai, A.G., Friesenecker, B., McCarthy, M., Sakai, H. and M. Intaglietta. “Plasma viscosity regulates capillary perfusion during extreme hemodilution in hamster skinfold model.” Am. J. Physiol. 275 (Heart. Circ. Physiol. 44): H2170-H2180, 1998.

Sakai, H., Tsai, A.G., Rohlfs, R.J., Hara, H., Takeoka, S., Tsuchida, E. and M. Intaglietta. “Microvascular responses to hemodilution with Hb vesicles as red blood cell substitutes: influence of O2 affinity.” Am. J. Physiol. 276: (Heart Circ. Physiol. 45): H553-H562, 1999.

Sakai, H., Hara, H., Tsai, A.G., Tsuchida, E., Johnson, P.C. and M. Intaglietta. “Changes in resistance vessels during hemorrhagic shock and resuscitation in conscious hamster model.” Am. J. Physiol. 276: (Heart Circ. Physiol. 44): H563-H571, 1999.

Kerger, H., Waschke, K.F., v. Ackern, K., Tsai, A.G. and M. Intaglietta. “Systemic and microcirculatory effects of autologous whole blood
resuscitation in severe hemorrhagic shock.” Am. J. Physiol. 276: (Heart Circ. Physiol. 45):H2035-H2043, 1999.

Erni, D., Sakai, H., Tsai, A.G., Sigurdssom, G.H. and M. Intaglietta. “Haemodynamics and oxygen tension in the microcirculation of ischemic skin flaps after neural blockade and haemodilution.” Brit. J. of Plastic Sur. 52:565-572, 1999.

Tsai, A.G., Sakai, H., Tsuchida, E. and M. Intaglietta. “Mechanical, microvascular and cellular basis for the design of artificial blood.” Artificial Blood: 8(2):30-39, 2000.

Sakai, H., Hara, H., Yuasa, M., Tsai, A.G., Takeoka, S., Tsuchida, E. and M. Intaglietta. “Molecular dimensions of Hb-based pO2 carriers determine constriction of resistance arteries and hypertension.” Am. J. Physiol. 279: H908-H915, 2000.

Sakai, H., Hara, H., Tsai, A.G., Tsuchida, E. and M. Intaglietta. “Constriction of resistance arteries determines L-NAME-induced hypertension in conscious hamster model”. Microvasc. Res. 60:21-27, 2000.

Tsai, A.G. “Influence of cell-free hemoglobin on local tissue perfusion and oxygenation after acute anemia following isovolemic hemodilution.” Transfusion 41(10):1290-1298, 2001.

Tsai, A.G. and M. Intaglietta. “High viscosity plasma expanders: Volume restitution fluids for lowering the transfusion trigger.” Biorheol. 38:229-237, 2001.

Tsai, A.G. and M. Intaglietta. “Hemodilution and increased plasma viscosity for the design of new plasma expanders.” Transfusion Alternatives in Transfusion Medicine 3:17-23, 2001.

Tsai, A.G. and M. Intaglietta. “The unusual properties of effective blood subsitutes”. Keio J. Med. 51(1):17-20, 2002.

Haidekker, M.A., Tsai, A.G., Brady, T., Stevens, H.Y., Frangos, J.A., Theodorakis, E. and M. Intaglietta. “A novel approach to blood plasma viscosity measurements using fluorescent molecular rotors”. Am. J. Physiol. Heart Circ. Physiol. 282:H1600-1614, 2002.

Sakai, H., Takeoka, S., Wettstein, R., Tsai, A.G., Intaglietta, M., and E. Tsuchida. “Systemic and microvascular responses to hemorrhagic shock and resuscitation with Hb vesicles.” Am. J. Physiol. Heart Circ. Physiol. 283:H1191-1199, 2002.

Kerger, H., Groth, G., Kalenka, A., Vajkoczy, P., Tsai, A.G. and M. Intaglietta. “pO2 measurements by phosphorescence quenching: characteristics and applications of an automated system”. Microvasc. Res. 65:32-38, 2003.

Manjula, B.N., Tsai, A.G., Upadhya, R., Perumalsamy, K., Smith, P.K., Malavalli, A., Vandegriff, K., Winslow, R.M., Intaglietta, M., Prabhakaran, M., Friedman, J.M. and A.S Acharya. “Site-specific PEGylation of Hemoglobin at Cys-93($): Correlation between the colligative properties of the PEGylated Protein and the length of the conjugated PEG chain”. Bioconjugate Chem, 2003.

Makale, M.T., Lin, J.T., Calou, RE., Tsai, A.G., Chen, P.C. and D.A. Gough. “Tissue window chamber system for validation of implanted oxygen sensors” Am. J. Physiol. Heart Circ. 284:H2288-H2294, 2003.

Wettstein, R., Tsai, A.G., Erni, D., Winslow, R.M. and M. Intaglietta. “Resuscitation with polyethylene glycol-modified human hemoglobin improves microcirculatory blood flow and tissue oxygenation after hemorrhagic shock in awake hamsters”. Crit Care Med. 31:1824-1830, 2003.

Tsai, A.G., Vandegriff, K.D., Intaglietta, M. and R.M. Winslow. “Targeted O2 delivery by low-P50 hemoglobin: a new basis for O2 therapeutics”. Am. J. Physiol. Heart Circ. 285:H1411-H1419, 2003.

Tsai, A.G., Carbales, P., Winslow, R.M. and M. Intaglietta. “Microvascular oxygen distribution in awake hamster window chamber model during hypoxia”. Am. J. Physiol. Heart Circ. 285:H1537-H1545, 2003.

Saltzman, D.J., Toth, A., Tsai, A.G., Intaglietta, M. and P.C. Johnson. “Oxygen tension distribution in postcapillary venules in resting skeletal muscle”. Am. J. Physiol. Heart Circ. 285:H1980-H1985, 2003.

Tsai, A.G., Johnson, P.C. and M. Intaglietta. “Oxygen gradients in the microcirculation”. Physiol. Rev. 83:933-963, 2003. (from Work in Progress) 

Cabrales, P., Acero, C., Intaglietta, M. and A.G. Tsai. “Measurement of the cardiac output in small animals by thermodilution”. Microvasc. Res. 66:77-82, 2003.

Saldivar, E., Cabrales, P., Tsai, A.G. and M. Intaglietta. “Microcirculatory changes during chronic adaptation to hypoxia”. Am. J. Physiol. Heart Circ. 285:H2064-H2071, 2003.

Briceno, J.C., Cabrales, P., Tsai, A.G., and M. Intaglietta. “Radial displacement of red blood cells during hemodilution and the effect on arteriolar oxygen profile.” Am. J. Physiol. Heart Circ. 286:H1223-H1228, 2004.

Hangai-Hoger, N., Cabrales, P., Briceno, J.C., Tsai, A.G. and M. Intaglietta. “Microlymphatic and tissue oxygen tension in the rat mesentery”. Am. J. Physiol. Heart Circ. 286:H878-H883, 2004.

Tsai, A.G., Sakai, H., Wettstein, R., Kerger, H. And M. Intaglietta. “An effective blood replacement fluid that targets oxygen delivery, increases
plasma viscosity, and has high oxygen affinity”. TATM. 5(6):507-515, 2004.

Wettstein, R., Tsai, A.G., Erni, D., Lukyanov, A.N., Torchilin, V.P. and M. Intaglietta. “Improving microcirculation is more effective than substitution of red blood cells to correct metabolic disorder in experimental hemorhhagic shock”. Shock. 21:235-240, 2004.

Cabrales, P., Tsai, A.G. and M. Intaglietta. “Microvascular pressure and functional capillary density in extreme hemodilution with low- and highviscosity dextran and a low-viscosity Hb-based O2 carrier”. Am. J. Physiol. Heart Circ. 287:H363-H373. 2004.

Cabrales, P., Tsai, A.G., Frangos, J.A., Briceno, J.C. and M. Intaglietta. “Oxygen delivery and consumption in the microcirculation after extreme hemodilution with perfluorocarbons”. Am. J. Physiol. Heart Circ. 287(1):320-330, 2004.

Tsai, A.G., Cabrales, P. And M. Intaglietta. “Oxygen-carrying blood substitutes: a microvascular prespective.” Expert Opin. Biol. Therapy 4(7):1147-1157, 2004.

Cabrales, P., Devi Kanika, N., Manjula, B.N., Tsai, A.G., Acharya, S.A., and M. Intaglietta. “Microvascular pO2 during extreme hemodilution with hemoglobin site specifically pegylated at CYS-93($) in hamster window chamber”. Am. J. Physiol. Heart Circ. 2004 (in press).

Friesenecker, B., Tsai, A.G., Dunser, M.W., Mayr, A.J., Martini, J., Knotzer, H., Hasibeder, W. and M. Intaglietta. “Oxygen distribution in the microcirculation following argenine-vasopressin induced arteriolar vasoconstriction”. Am J Physiol Heart Circ. 2004 (in press).

Manjula, B.N., Tsai, A.G., Intaglietta, M., Tsai, C.H., Ho, C., Malavalli, A., Vandegriff, K.D., Winslow, R.M., Smith, P.K., Perumalsamy, K., Ksanika, N.D., Friedman, J.M. and S.A. Acharya. “PEGylated hemoglobin: Role of surface configuration of PEG for the modulation of hemoglobin vasoactivity.” J. Biol. Chem. 2004 (in press).

Tsai, A.G., Cabrales, P. and M. Intaglietta. “Microvascular perfusion upon exchange transfusion with stored RBCs in normovolemic anemic conditions”. Tranfusion. 2004 (accepted for publication)

 

 

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