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Recent Publications

1)   Jaggar, J. H. (2001)  Intravascular pressure regulates local and global calcium signaling in cerebral artery smooth muscle cells. Am. J. Physiol. 281: C439–C448.

2)   Jaggar, J. H.,  Leffler, C.W.,  Cheranov, S. Y.,  Tcheranova, D.,  E, S., and Cheng, X. (2002)  Carbon monoxide dilates cerebral arterioles by enhancing the coupling of Ca2+ sparks to Ca2+-activated K+ channels. Circ. Res. 91: 610–617.

  Cheranov, S. Y. and Jaggar, J. H. (2002)  Sarcoplasmic reticulum calcium load regulates rat arterial smooth muscle calcium sparks and transient KCa currents.  J. Physiol. 544: 71-84.

4)  Wang, D., Du, H., Jaggar, J. H.,  Brindley, D., Tigyi, G. J., and Watsky, M. A. (2002)  Injury elicited differential transcriptional regulation of phospholipid growth factor receptors in the cornea.  Am. J. Physiol. 283: C1654-C1646.

5)   Fiumana, E., Parfenova, H, Jaggar, J. H., Leffler, C. W. (2003)  Carbon monoxide mediates vasodilator effects of glutamate in isolated pressurized cerebral arterioles of newborn pigs. Am. J. Physiol. 284: H1073-H1079.

6)   Meyer zu Heringdorf, D., Liliom, K., Schäfer, M., Danneberg, K., Jaggar, J. H., Tigyi, G., and Jakobs, K. H. (2003)  Photolysis of intracellular caged sphingosine-1-phosphate causes Ca2+ mobilization independently of G protein-coupled receptors. FEBS Letts. 544(3):  443-449.

7)   Xi, Q., Tcheranova, D., Parfenova, H., Horowitz, B., Leffler, C. W. and Jaggar, J. H.  (2004) Carbon monoxide activates KCa channels in newborn arteriole smooth muscle cells by increasing apparent Ca2+-sensitivity of α-subunits. Am. J. Physiol. 286(2):  H610-H618.

8)   Cheranov, S. Y. and Jaggar, J.H. (2004)  Mitochondrial modulation of Ca2+ sparks and transient KCa currents in smooth muscle cells of rat cerebral arteries. J. Physiol. 556:  755-771.

9)   Barkoudah, E., Jaggar, J.H., Leffler, C.W.  (2004)  The permissive role of endothelial NO in CO-induced cerebrovascular dilation. Am. J. Physiol. 287: H1459-H1465.

10) Ahmed, A., Leffler, C.W., and Jaggar J.H.  (2004) Ionic mechanisms mediating the myogenic response in newborn porcine cerebral arteries. Am. J. Physiol. 287:  H2061-H2069.

11) Liu, P., Xi, Q., Ahmed, A., Jaggar, J.H., and Dopico, A.M. (2004) Essential role for smooth muscle BK channels in alcohol-induced cerebrovascular constriction.  Proc. Natl. Acad. Sci. USA. 101(52): 18217-18222.

12) Leffler, C.W., Fedinec, A.L., Parfenova, H., and Jaggar, J.H. (2005)  Permissive contributions of NO and prostacyclin in CO-induced cerebrovascular dilation in piglets.  Am. J. Physiol. 289: H432-H438.

13)  Xi, Q., Cheranov, S.Y., and Jaggar, J.H. (2005)  Mitochondria-derived reactive oxygen species dilate cerebral arteries by activating Ca2+ sparks.  Circ. Res. 97(4): 354-362.  Editorial commentary by D.D. Gutterman, Mitochondria and Reactive Oxygen Species: An Evolution in Function, pgs. 302-304.

14) Jaggar, J.H., Li, A., Parfenova, H., Liu, J., Umstot, E.S., Dopico, A.M. and Leffler, C.W. (2005)  Heme is a carbon monoxide receptor for large-conductance Ca2+-activated K+ channels.  Circ. Res. 97 (8): 805-812.

15) Cheranov, S. Y. and Jaggar, J. H. (2006)  TNF-α dilates cerebral arteries via NAD(P)H oxidase-dependent Ca2+ spark activation.  Am. J. Physiol. 290: C964-C971. Editorial commentary by C.G. Sobey and A.A. Miller, Radicals spark interest in cerebral vasodilator mechanisms, pgs. C950-C951.

16) Leffler C.W., Parfenova, H., Jaggar J.H. and Wang R. (2006)  Carbon monoxide and hydrogen sulfide:gaseous messengers in regulation of cerebrovascular circulation.  J. Appl. Physiol. 100:1065-1076.

17) Cheng, X. and Jaggar, J.H.  (2006)  Genetic ablation of caveolin-1 modifies Ca2+ spark coupling in murine arterial smooth muscle cells.  Am. J. Physiol. 290: H2393-H2401.

18) Li, A., Adebiyi, A., Leffler, C.W., and Jaggar, J.H. (2006)  KCa channel insensitivity to Ca2+ sparks underlies fractional uncoupling in newborn cerebral artery smooth muscle cells. Am. J. Physiol. 291(3): H1118-1125.

19) Adebiyi, A., Zhao, G., Cheranov, S.Y., Ahmed, A., and Jaggar, J.H. (2007)  Caveolin-1 abolishment attenuates the myogenic response in murine cerebral arteries.  Am. J. Physiol. 292(3): H1584-1592.

20) Zhao, G., Adebiyi, A., Xi, Q., and Jaggar, J.H. (2007)  Hypoxia reduces KCa channel activity by inducing Ca2+ spark uncoupling in cerebral artery smooth muscle cells.  Am. J. Physiol. 292: C2122–C2128.

21)  Jaggar, J.H. (2007)  Smooth muscle sparklet CaV channels defined: 1.2 is the number.  Am. J. Physiol. 293: H1317-H1319.

22) Cheng, X., Liu, J., Asuncion-Chin, M., Blaskova, E., Bannister, J.P., Dopico, A.M. and Jaggar J.H.  (2007)  A novel CaV1.2 N-terminus expressed in smooth muscle cells of resistance-size arteries modifies channel regulation by auxiliary subunits.  J. Biol. Chem. 282: 29211-29221.

23) Li, A., Xi, Q., Umstot, E.S, Bellner, L., Laniado-Schwartzman, M., Jaggar, J.H., and Leffler, C.W.  (2008)  Astrocyte-derived CO is a diffusible messenger that mediates glutamate-induced cerebral arteriolar dilation by activating smooth muscle cell KCa channels.  Circ. Res. 102(2):234-41.

24) Xi, Q. Adebiyi, A., Zhao, G, Chapman, K.E., Waters, C.M., Hassid, A., and Jaggar, J.H.  IP3 constricts cerebral arteries via IP3 receptor-mediated TRPC3 channel activation and independently of sarcoplasmic reticulum Ca2+ release.  Circ. Res. 102(9): 1118-1126.

25) Adebiyi, A., McNally, E.M., and Jaggar, J.H. (2008)  Sulphonylurea receptor-dependent and –independent pathways mediate vasodilation induced by KATP channel openers.  Mol. Pharmacol. 74: 736-743.

26) Zhao, G., Adebiyi, A., Blaskova, E., Xi, Q., and Jaggar, J.H. (2008)  Type 1 inositol 1,4,5-trisphosphate receptors mediate UTP-induced cation currents, Ca2+ signals, and vasoconstriction in cerebral arteries. Am. J. Physiol. 295(5):C1376-84.

27) Cheng X., Pachuau J., Blaskova E., Asuncion-Chin M., Liu J., Dopico A.M., Jaggar J.H. Alternative splicing of Cav1.2 channel exons in smooth muscle cells of resistance-size arteries generates currents with unique electrophysiological properties. Am. J. Physiol. Heart Circ. Physiol. (in press).