Monday, January 28, 2019

Neuromics' Islet-1 Used to Study Avian Heart Morphology

Evolution of High-Performance Hearts

Our Islet-1 Antibody showed its versatility a comparative morphology of avian hearts.

Figure: Sinuatrial node in Mallard (a–c), chicken HH42 (d–g), Lesser redpoll (h–j), and Jackdaw (k–m). All sections are in the transverse plane. The boxed areas in the left-hand column images indicate the areas of the images of the middle and right-hand columns. (a–c) In the Mallard, a nodal structure at the base of the right leaflet of the sinuatrial valve (black arrowhead in [a]) expressed Isl1 (b, c) and had a large coronary artery (white arrowhead in [b]). Sections 271 (cranial) to 1201 (caudal) encompassed the atria and the sections shown are 691 (a), 692 (b), 762 (c). (d–g) In the chicken HH42, the sinus venosus (SV) expressed the myocardial marker cTnI and this expression was relatively weak at the base of the right leaflet of the sinuatrial valve (black arrowhead in [e]). (f–g) The base of the right leaflet of the sinuatrial valve expressed Bmp2 (red arrowheads in [f]) and Isl1 [g]). Sections 17 (cranial) to 297 (caudal) encompassed the atria and the sections shown are 80 (d-e), 78 (f ), 88 (g). The sections were from the mid-height of the atria. (h–j) In the lesser redpoll, Isl1 was expressed in the base of the right leaflet of the sinuatrial valve. There was no nodal structure but the Isl1 expressing wall was thicker than the surrounding walls and contained a large coronary artery (white arrowhead in [i]). Sections 321 (cranial) to 621 (caudal) encompassed the atria and the sections shown are 401 (h), 402 (i), 422 (j). (k–m) In the Jackdaw an Isl1 positive area was seen in the left sinus venosus myocardium (l) in which a coronary artery was visible (white arrowhead in (l). At the base of the right sinuatrial leaflet no positive Isl1 cells could be seen (m). Sections 122 (cranial) to 332 (caudal) encompassed the atria and the sections shown are 190 (k) and 191 (l–m). Ao = aorta; LA = left atrium; PA = pulmonary artery; RA = right atrium; SAJ = sinuatrial junction. In the picro-sirius red images blood has been painted over with white for clarity. DOI: 10.1002/jmor.20952

We have an extensive catalog of high-performance antibodies.

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