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Microsc. Res. Tech., 2012. ? 2011 Wiley Periodicals, Inc. ""The purpose of this study was to elucidate the micro CT findings of tumoral vessels supplied by portal circulation during establishment of hepatic metastasis of colorectal cancer in a mouse model. Hepatic metastases were induced in 15 BALB/c mice through the injection of murine colonic adenocarcinoma tumor cells into the mesenteric vein. Micro-CT imaging of the tumoral vessels was obtained to clarify the microvascular architecture. We evaluated the sinusoidal structure, diameter of the tumoral this website vessels (DTV) and blood vessel density (BVD) according to tumor sizes ranging from 201 to 3,000 ?m in diameter. A total of 116 tumors were observed on day 15 after cell injection. The mean diameter of a normal hepatic sinusoid was 11.7?��?2.0 ?m on micro CT. The DTV supplied by the portal vein of tumors measuring 1,001�C1,500 ?m in diameter was greater than that of tumors 200�C1,000 ?m in diameter. The mean BVD from the portal vein gradually decrease according to size of tumor from 201 to 3,000 ?m in diameter (r2?=??0.584, P?<?0.01). The characteristics of tumoral vessels supplied by portal circulation during establishment of hepatic colorectal metastases were well visualized with micro-CT imaging. Microsc. Res. Tech. 77:415�C421, 2014. ? 2014 Wiley Periodicals, Inc. ""The egg of Samia ricini (Donovan), is oval or laterally flattened ellipsoid, freshly laid eggs <a href="http://www.selleckchem.com/products/GDC-0980-RG7422.html">click here are candid white while the chorion is colorless and semi-transparent. The surface of the chorion is covered with network patterns of polygons and their shapes are common in the whole surface region. The boundaries Crizotinib between polygons made ridges had distinct acropyles at three-cell junctions. The numbers of aeropyles are variable according to their structures both in the lateral flat and marginal regions. During the course of egg development, no significant structural changes were observed in either the polygonal structures or the overall morphology of the egg. However, the size of the aeropyles kept on changing as the egg matures. The aeropyle increases initially upto day-9 of egg development and then decreases as it approach hatching. Lines of weaknesses were not observed at time of hatching or close to it. Hatching process of the newly emerge larvae are through gnawing. The larva eats their way out through the chorion membrane mostly from the anterior region. Egg buster or spine which aid in hatching are not present in the newly emerge larvae. This article was published online on 25 September 2009. An error was subsequently identified. This notice is included in the online and print versions to indicate that both have been corrected 6 January 2010. Microsc. Res. Tech., 2010. ? 2009 Wiley-Liss, Inc.