Kazimierz Wielki University in Bydgoszcz

About: Kazimierz Wielki University in Bydgoszcz is a education organization based out in Bydgoszcz, Poland. It is known for research contribution in the topics: Luminescence & Population. The organization has 1109 authors who have published 2923 publications receiving 19548 citations. The organization is also known as: Casimir the Great University & Uniwersytet Kazimierza Wielkiego w Bydgoszczy.

Ferritin Genes Overexpression in PBMC and a Rise in Exercise Performance as an Adaptive Response to Ischaemic Preconditioning in Young Men

Abstract: Objectives. The proposal of this study was to evaluate the effect of acute and ten-day ischaemic preconditioning (IPC) training procedure on the Wingate Anaerobic Test (WAnT), the ferritin H (FTH), ferritin L (FTL), and transferrin receptor 1 (TFRC) mRNA expression in peripheral blood mononuclear cells (PBMC), and anaerobic performance. Method. 34 healthy men volunteers (aged 20.7 ± 1.22 years) participated in the study. The effects of bilateral upper limb IPC and sham controlled condition were assessed in two experimental protocols: (a) the influence of acute (one time) IPC based on an experimental crossover study design and (b) the influence of ten-day IPC training treatment based on a random group assignment. At the beginning and at the end of each experiment upper body WAnT was performed and blood samples were collected to assess gene expression via quantitative PCR (qPCR). Results. No significant effect of one-time ischaemic preconditioning procedure was observed on upper body WAnT performance. Ten-day IPC training significantly increased upper limbs relative mean power (from 5.29 ± 0.50 to 5.79 ± 0.70 (W/kg), p 0.05). One-time IPC caused significant decrease in FTH, FTL, and TFRC mRNA levels while 10 days of IPC resulted in significant increase of FTH and FTL mRNA (from 2 254.2 to 2 1678.6 (p = 0.01) for FTH and 2 81.5 to 2 923 (p = 0.01) for FTL) and decrease in TFRC mRNA. Conclusions. Our findings suggest that ten-day IPC training intervention significantly affects upper limb relative peak power. The observed overexpression of FTH and FTL genes could be associated with adaptation response induced by prolonged IPC.

Morphological ontogeny of Cerachipteria iturrondobeitiai sp. nov. (Acari: Oribatida: Achipteriidae) from northern Spain, with comments on Cerachipteria Grandjean

Abstract: The morphological ontogeny of Cerachipteria iturrondobeitiai sp. nov. from northern Spain is described and illustrated. The adult of this species has wide, long prodorsal lamellae, protruding beyond the rostrum, as in other genera of Achipteriidae. However, the lamellae are separated as in other species of Cerachipteria Grandjean, 1935. In C. iturrondobeitiai, the translamella can be present, incomplete or absent, whereas most congeners lacks the translamella, except for C. jugata Mihelcic, 1956, in which it is well-formed. The ovipositor of C. iturrondobeitiai is unusual because it bears seven pairs of coronal setae, instead of three pairs in other species of Achipteriidae. The adult of C. iturrondobeitiai is similar to C. digita Grandjean, 1935, but differs from it mainly by the location of porose areas A2 and A3 and seta lm on the notogaster and the shape of the bothridial seta. The juveniles of C. iturrondobeitiai are plicate, with most prodorsal setae minute, as in other species of Achipteri...

Natural articular joints: model of lamellar-roller-bearing lubrication and the nature of the cartilage surface

Abstract: The influence of pH on interfacial energy and wettability distributed over the phospholipid bilayer surface were studied, and the importance of cartilage hydrophobicity (wettability) on the coefficient of friction (f) was established. It is argued that the wettability of cartilage significantly depends on the number of phospholipid bilayers acting as solid lubricant; the hypothesis was proven by conducting friction tests with normal and lipid-depleted cartilage samples. A lamellar-roller-bearing lubrication model was devised involving two mechanisms: (i) lamellar frictionless movement of bilayers, and (ii) roller-bearing lubrication mode through structured synovial fluid, which operates when lamellar spheres, liposomes and macromolecules act like a roller-bearing situated between two cartilage surfaces in effective biological lubrication.

The occurrence of ochratoxin A in human body fluids – review

Abstract: Mycotoxins are metabolites of filamentous fungi. Ochratoxin A(OTA) is one of the mycotoxins most commonly isolated from the environment. It is regularly detected in cereals, coffee, cocoa, wine, be...