Shear wave elastography to assess stiffness of the human ovary and other reproductive tissues across the reproductive lifespan in health and disease†.

The ovary is one of the first organs to show overt signs of aging in the human body, and ovarian aging is associated with a loss of gamete quality and quantity. The age-dependent decline in ovarian function contributes to infertility and an altered endocrine milieu, which has ramifications for overall health. The aging ovarian microenvironment becomes fibro-inflammatory and stiff with age, and this has implications for ovarian physiology and pathology, including follicle growth, gamete quality, ovulation dynamics, and ovarian cancer.

Effective separation of chromium species in technological solutions using amino-immobilized silica prior to their determination.

Amino-immobilized (poly(4,9-dioxadodecane-1,12-guanidine, polydiallyldimethylammonium, hexadimethrin bromide, polyhexamethylene guanidine) silicas were proposed for chromium speciation for the first time. Adsorbents surface was characterized by TGA-DSC, FT-IR, CHN, XRD and SEM analysis. Polyamines were strongly fixed on the silica surface and were not washed off with solutions of 3М HNO and 20 g L NaCl.

[Current trends in the method used for urine derivation after radical cystectomy for muscle-invasive bladder cancer].

Bladder cancer ranks 7th in the world among all malignant tumors in men and 11th in both sexes. Radical cystectomy is the gold standard of muscle-invasive bladder cancer treatment in most countries of the world. A large number of fundamentally different options for urine derivation is developed.

[Radical cystectomy: therapeutic aspects of preoperative and early postoperative management].

Aim: to improve the results of radical cystectomy by optimization of patient preparation for surgery and early postoperative care.

Materials And Methods: A total of 136 patients who underwent radical cystectomy and either orthotopic ileal neobladder or ileal conduit formation were included in the study. Brikkers operation was performed in 92 patients (76% men and 24% women) aged from 39 to 83 years, while in 44 patients (97.

Determination of Metals in Natural Waters by Inductively Coupled Plasma Optical Emission Spectroscopy after Preconcentration on Silica Sequentially Coated with Layers of Polyhexamethylene Guanidinium and Sulphonated Nitrosonaphthols.

A series of complexing adsorbents is prepared by coating silica particles with linear polyhexamethylene guanidinium (PHMG) chloride followed by saturation with a number of sulphonated nitrosonaphthols reagents electrostatically retained by positively charged polymer layer. PHMG coated silica is hydrolytically stable even during treatment with 6 M HCl heated up to 50 °C. The adsorption of 1-nitroso-2-naphthol-3,6-disulfonic acid (nitroso-R-salt), 2-nitroso-1-naphthol-4-sulfonic acid (nitroso-N-salt), and 2-nitroso-1-naphthol-3,6-disulfonic acid (nitroso-K-salt) on PHMG modified silica was studied.