Publications by authors named "K C Nishikawa"

Sonic Hedgehog (Shh), encoding an extracellular signaling molecule, is vital for heart development. Shh null mutants show congenital heart disease due to left-right asymmetry defects stemming from functional anomaly in the midline structure in mice. Shh signaling is also known to affect cardiomyocyte differentiation, endocardium development, and heart morphogenesis, particularly in second heart field (SHF) cardiac progenitor cells that contribute to the right ventricle, outflow tract, and parts of the atrium.

View Article and Find Full Text PDF

Background/aim: Perianal Paget's disease (PPD) is an intraepithelial invasion of the perianal skin that is frequently associated with anorectal carcinoma. Rectal canal carcinoma with Pagetoid spread (PS) is a relatively rare disease, and few reports on its outcomes are available. The relatively rare nature of this disease makes the development of treatment recommendations difficult.

View Article and Find Full Text PDF
Article Synopsis
  • A study explored salvage chemotherapy using capecitabine plus oxaliplatin (XELOX) for gastric cancer patients who couldn't tolerate or were resistant to cisplatin, but it was halted due to low patient enrollment.
  • 12 patients participated, revealing a disease control rate of 90% and a response rate of 30%, with median progression-free survival of 4.2 months and overall survival of 7.1 months.
  • Common severe side effects included fatigue and low potassium levels, but there were no treatment-related deaths, suggesting XELOX might be beneficial for these patients.
View Article and Find Full Text PDF

Renorrhaphy is often performed after tumor resection during robotic-assisted laparoscopic partial nephrectomy (RAPN). This study aimed to investigate the association between renorrhaphy performance and inflammatory markers. A retrospective cohort study was conducted including patients with renal cell carcinoma who underwent RAPN at eight institutions in Japan between April 2016 and November 2023.

View Article and Find Full Text PDF

Lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) are bioactive lysophospholipids derived from cell membranes that activate the endothelial differentiation gene family of G protein-coupled receptors. Activation of these receptors triggers multiple downstream signaling cascades through G proteins such as Gi/o, Gq/11, and G12/13. Therefore, LPA and S1P mediate several physiological processes, including cytoskeletal dynamics, neurite retraction, cell migration, cell proliferation, and intracellular ion fluxes.

View Article and Find Full Text PDF