Aim: To evaluate the morphostructural aspects and nail vascularity in the nail unit of patients with psoriasis, and to evaluate whether there are differences among psoriatic patients with and without nail involvement. Material and methods: Nail plates and nail bed changes, nailfold vessel resistance index (NVRI), power and color Doppler blood flow appearances were investigated in 23 patients with moderate-to-severe psoriasis, with and without nail involvement, and compared to those of 11 healthy participants. Results: Ventral nail plate deposits were present only in psoriasis patients. Irregular or totally fused nail plates and increased nail plate thickness was frequently observed in psoriasis patients compared to controls. NVRI was increased in psoriatic patients' nails compared to controls (0.62 vs. 0.57, p<0.0001). In the psoriasis patient group there was significant statistical difference in NVRI in patients with nail involvement compared to those without (0.66 vs. 0.55, p<0.0001). Conclusions: High-frequency gray scale sonography provides valuable information regarding morphostructural changes in nail unit structure in patients with psoriasis. Power Doppler imaging enables blood flow assessment in psoriasis nail induced changes.

We developed a SERS-based method for the screening of albuminuria in the sub-microalbuminuria interval. We show the potential of SERS for absolute quantification of albumin.

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Aim: To evaluate the ultrasound (US) modifications [grey scale, Doppler, 2D-share wave elastography (2D-SWE)] ofsalivary (parotid and submandibular) and lacrimal glands in healthy people and patients with diabetes mellitus and/or obesity, with or without sialosis.Material and methods: We evaluated 170 patients (1020 glands, 1700 grey scale and Doppler images), split in two groups (group 1- healthy people, group 2- obese and/or diabetes patients, with or without sialosis). For each patient we assessed the parotid, submandibular and lacrimal glands in grey scale US (echogenicity, homogeneity, glandular contour, posterior border, lymph nodes), color Doppler US and 2D-SWE. All images were analyzed by two examiners blinded to each other or to patients.Results: The interobserver agreement was strong or moderate for all parameters. In group 2, the salivary glands had increased echogenicity, homogeneous aspect and invisible posterior border (all p<0.001). There was no significant variation of elasticity modulus in the groups analyzed (5.46±1.57 vs 5.67±1.81 in parotid, 8.63±1.84 vs 8.55±1.94 in submandibular and 9.47±2.1 vs 9.53±2.23 in lacrimal glands, all p<0.05) or according to the body mass index (BMI), sex, patient age, the aspect in grey scale/Doppler US or the presence of sialosis (all p<0.05).Conclusion: The main US differences between healthy people and patients with diabetes mellitus and/or obesity are suggested by the echogenicity, homogeneity, posterior border and the size of glandular area. No significant differences of elasticity modulus were found between the analyzed groups or related to BMI, sex, patient age or other grey scale/Doppler US items analyzed.