Background: In veterinary medicine, previous studies regarding the diagnostic performance of shear wave elastography (SWE) in chronic kidney disease (CKD) are not consistent with each other. Moreover, there has been no study evaluating the relationship between symmetric dimethyl arginine (SDMA) concentration and renal shear wave velocity (SWV) using twodimensional SWE (2D SWE) in dogs with CKD. Objectives: This study aimed to evaluate the diagnostic capability of 2D SWE in dogs with CKD and to assess the relationship between renal SWV and SDMA concentration. Methods: Dogs with healthy kidneys and dogs with CKD underwent 2D SWE and SDMA assay. Renal stiffness was estimated as renal SWV in m/s. Results: SDMA concentration had a weak positive correlation with the left (r = 0.338, p = 0.022) and right renal SWV (r = 0.337, p = 0.044). Renal SWV was not significantly different between healthy kidney and CKD groups in the left (p = 0.085) and right (p = 0.171) kidneys. Conclusions 2D SWE may could not distinguish between dogs with healthy kidney and dogs with early stage of CKD, but it would be useful for assessing the serial change of renal function in dogs.

Tuberculosis (TB), a global and deadly infectious disease caused by Mycobacterium tuberculosis (Mtb), is manifested with host immune reaction. The balanced regulation between protective immune and pathologic inflammatory responses is critical to control progression to TB. Chemokines are a large family of cytokines that play an essential role for chemotaxis of immune and inflammatory cells to the sites of infection. Numerous chemokines including CXCL10 were reported as potential biomarkers of various stages of TB infection. In addition, several chemokines and their receptors play as key players to coordinate host immune defense as innate effectors and mediators of adaptive immune responses.Accumulating evidence suggests that some chemokines, if uncontrolled, are associated with host pathological inflammation during infection. In this review, we will discuss recent advances in understanding which chemokines have potentials as diagnostic markers. In addition, we focus the roles and mechanisms by which chemokines and their receptors are involved in both host immune protection and pathology during TB infection. The controlled activation of chemokine system will determine the coordinated biological outcomes of innate immune responses during pathogenic infection.