Linker-Functionalized Phosphinate Metal-Organic Frameworks: Adsorbents for the Removal of Emerging Pollutants.

Metal-organic frameworks (MOFs) are attracting increasing attention as adsorbents of contaminants of emerging concern that are difficult to remove by conventional processes. This paper examines how functional groups covering the pore walls of phosphinate-based MOFs affect the adsorption of specific pharmaceutical pollutants (diclofenac, cephalexin, and sulfamethoxazole) and their hydrolytic stability. New structures, isoreticular to the phosphinate MOF ICR-7, are presented.

Electrospun PA6 Nanofibers Bearing the CeO Dephosphorylation Catalyst.

Two types of CeO nanoparticles (CeNPs) prepared by low-temperature (<100 °C) precipitation methods in water were successfully immobilized in a matrix of electrospun PA6 nanofibers. The colloidal solutions of CeNPs in AcOH were directly mixed with the polymer solution before the needle electrospinning process, thereby achieving their good dispersion in the nanofibers. CeNPs embedded in the structure and on the surface of nanofibers exposing their reactive surfaces showed robust dephosphorylation catalytic activity, as demonstrated by monitoring the hydrolytic cleavage of three phosphodiester molecules (-NP-TMP, -NPPC, BNPP) in water by the HPLC method.

Mobilisation of Cd, Mn, and Zn in floodplains by action of plants and its consequences for spreading historical contamination and fluvial geochemistry.

Cadmium, Mn, and Zn are mobilised by plants commonly growing in floodplains, most notably willows (Salix) and alder (Alnus). These plants accumulate unwanted elements (Cd) or excessive element concentrations (Mn, Zn) in their foliage, thus introducing them into the food web and enriching them in floodplain surface by litterfall. In floodplain of the Litavka River in Czechia, contaminated by historical mining activities, up to 100 mg kg Cd and up to several thousand mg kg Mn and Zn are present in willow leaves in autumn, probably close maxima for sustainable plant growth.

Deficiency of Adenomatous Polyposis Coli protein in sporadic colorectal adenomas and its associations with clinical phenotype and histology.

Aim: To evaluate the frequency of the loss of the Adenomatous Polyposis Coli (APC) protein and to compare the APC status with the characteristics of colorectal adenomas.

Methods: Immunohistochemical analysis of the APC protein was performed on 118 adenomas and the results were compared with parameters of malignant potential, location of adenomas, macroscopic appearance and age of the patients.

Results: A complete loss of the APC protein was found in 28 (24%) adenomas, while 90 (76%) were APC positive.

[Adverse effects of nonsteroidal antirheumatic agents on the digestive tract].

In this review the authors focus on the adverse GIT events during long-term treatment with non-steroid anti-inflammatory drugs, and explain pathogenesis of the NSA induced gastropathy and enteropathy. The risk groups of patients and prophylactic and therapeutic modalities are discussed. There are indices that most of the NSA gastric ulcers don't induce clinical symptoms, and massive bleeding may be the first clinical manifestation.

[Cutaneous complications in idiopathic inflammatory bowel disease].

A 29-year-old male patient with the anamnesis of inflammatory bowel disease and Grave-Basedowov disease was hospitalized because of rapidly spreading skin defect with affected muscle on the left shin. This skin defect appeared after the significant decreasing of corticoids. The small skin trauma preceded the pyoderma gangrenosum.

[Initial experience with detection of Saccharomyces cerevisiae antibodies in patients with primary nonspecific inflammatory bowel disease].

Introduction: Inflammatory bowel diseases (IBD), with Crohn's disease (CD) and ulcerative colitis (UC) as the two main disorders, is a heterogeneous group of diseases of unknown etiology. Actually we have no ideal disease marker, to identify people at risk of the disease, which can differentiate CD from UC, be highly specific for CD or UC and easily applicable in routine laboratory praxis.

Aims: Determine the clinical significance of serological testing p-ANCA and ASCA in patients with IBD.