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The use of in vitro prepared biosynthetic grafts can considerably improve the patient's quality of life. This work reports on the use of an autologous graft prepared from a patient's preputial cells cultivated on biodegradable polymeric membrane. Coladerm membrane is based on the chemically modified polyelectrolyte complex of atelocollagen and hyaluronan. The graft was used to cover a defect in the mouth cavity base and tongue after reconstruction surgery performed at this site in the past. The presented clinical case showed that the autologous biosynthetic graft prepared from foreskin cells can be successfully used for covering of medium-size defects in mouth cavity base resulting in the regeneration of target mouth structures with significant improvement of patient's quality of life.

The representation of microcirculation can be approached in several ways. One of the possibilities is to represent the endothelium (endothelial or sinus lining cells) and their basement membrane on the basis of detecting the known components and the expression of the surface antigenes by the methods of immuno-, enzyme-or lectino-histochemical analysis, or by staining or impregnation histological methods. The other possibility is the examination of samples by transmission and scanning electron microscopy. For three-dimensional demonstration corrosion casts techniques or laser scanning confocal microscopy can be used. In this paper we describe the survey of immuno-, enzyme-and lectino-histochemical characteristics of selected components of microcirculation and our own results of its demonstration in human spleen.

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Pandémia ochorenia COVID-19 (COronaVIrus Disease 2019) spôsobená koronavírusom SARS -CoV-2 (severe acute respiratory syndrome coronavirus 2) zapríčinila milióny úmrtí a mnoho pacientov má po prekonaní akútneho stavu chronické následky. V snahe o zastavenie šírenia vírusu boli vyvinuté viaceré očkovacie látky, ktoré však majú potenciálne vážne nežiaduce účinky. Prezentujeme kazuistiku pacienta s akútnymi (myokarditída, exacerbácia bronchiálnej astmy) aj dlhodobými (syndróm posturálnej ortostatickej tachykardie − POTS) komplikáciami po očkovaní druhou dávkou mRNA vakcíny BNT162b2 (Comirnaty®). Liečba pozostáva z režimových opatrení, početnej farmakoterapie (metoprolol, ivabradín, kortikosteroidy, antihistaminiká, antiflogistiká, bronchodilatanciá) a viacerých nutraceutík (extrakt z borovice prímorskej, kvercetín, vitamíny, horčík, fosfatidylcholín). V diskusii analyzujeme povakcinačné poškodenie a prinášame krátky prehľad z aktuálnej literatúry.