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The present study was conducted to investigate the effects of dietary fructo-oligosaccharide (FOS) (0, 1, 2 and 3 %) supplementation on the growth performance, haemato-immunological parameters, cultivable autochthonous (non-adherent) intestinal microbiota and stress resistance of common carp (Cyprinus carpio) fry (3·23 (sem 0·14) g). These parameters were measured after feeding the carp fry with the experimental diets for 7 weeks. Dietary FOS supplementation had no significant effects on the growth performance and food intake of carp fry compared with the control treatment. It also had no significant effects on the following haematological parameters: erythrocyte count; leucocyte counts (WBC); haematocrit; Hb; mean corpuscular volume; mean corpuscular Hb content; mean corpuscular Hb concentration. However, WBC and respiratory burst activity were significantly affected by dietary FOS supplementation. Evaluation of the cultivable autochthonous intestinal microbiota revealed a significant increase in the levels of total viable heterotrophic aerobic bacteria and lactic acid bacteria in fish fed diets supplemented with 2 and 3 % FOS. Furthermore, dietary FOS supplementation significantly increased the survival rate and stress resistance of carp fry compared with the control treatment. These results encourage conducting further research on the administration of FOS and other prebiotics in carp fry studies.

The aim of this paper is to verify whether step aerobics training (SAT) has an impact on the temperature of deep muscles of the spine of young, healthy subjects and if there exists a relationship between the maximal oxygen uptake (VO2max) and thermal results. The study was conducted in a group of 21 subjects of both sexes, aged 20.2 ± 0.38. The step aerobics training sessions lasted 30 weeks, one training session per week, 60 minutes per session. Thermograms of the spine were taken with the use of an infrared thermographic camera. Instrumental measurements included BMI, vital capacity of the lungs, and maximal oxygen uptake (VO2max). After a 30-weeklong SAT, a statistically significant increase in the average temperature of the muscles of the thoracic and lumbar spine was observed in subjects of both sexes (1.2◦C and 1.28◦C, respectively, p < 0.05). At the same time, VO2max increased from 42.98 ml/kg/min to 43.6 ml/kg/min in male subjects and from 40.4 ml/kg/min to 41.1 ml/kg/min in female subjects (p > 0.05). The relationship between VO2max and temperature of the muscles of the thoracic and lumbar spine after the 30th SAT was not statistically significant (r = - 0.28; p = 0.226; r = - 0.11; p = 0.634, respectively). The study showed that a 30-weeklong step aerobics training (SAT) had a positive impact on thermoregulation of apparently healthy male and female subjects aged 20. Furthermore, it can be safely assumed that thermography may be used as a non-invasive method of examination of the thermoregulation mechanism of SAT participants.

This groundbreaking book demonstrates the link between health and metarobics, the author's term for slow, meditative exercises that enhance blood oxygen saturation, diffusion, and oxygen-based metabolism. Metarobics-- including tai chi, qigong, and yoga-- focus on movement, relaxation, and deep breathing. Dr. Gryffin's research shows that mindful exercises offer a wide range of benefits for treating chronic disease.--Publisher.

Key Points Carbon monoxide (CO) supports the growth and metabolism of a phylogenetically diverse group of aerobic proteobacteria. The terms carboxydotroph and carboxydovore refer to bacteria that grow or are unable to grow in environments with elevated CO concentrations (>1%), respectively. Aerobic CO oxidizers use a molybdenum hydroxylase, CO dehydrogenase (CODH), to oxidize CO. CODH differs distinctly from an enzyme used by anaerobes to oxidize CO. Form I (also known as OMP) CODH actively oxidizes CO and has been extensively characterized. A putative CODH, referred to as form II (also known as BMS), shares many characteristics with form I CODH, but seems to oxidize CO slowly, and might do so incidentally. Genes for the form I CODH large subunit ( coxL ) can be readily distinguished from form II putative coxL genes by the presence of an AYXCSFR active-site motif in form I, and an AYXGAGR motif in form II. Although genomic databases for bacteria and metagenomic databases for environmental samples have helped to identify many new CO oxidizers, many genes identified as aerobic CODH genes have also been misannotated. Aerobic CO oxidizers occur commonly in soils and aquatic habitats; many of these bacteria probably function as mixotrophs, using both CO and various organic substrates simultaneously. Results from organic-poor environments, such as recent volcanic deposits, indicate that CO oxidizers are important pioneering colonists and that atmospheric CO provides a significant source of energy. Aerobic CO oxidizers include important human and animal pathogens, for example, Mycobacterium bovis and Mycobacterium tuberculosis , as well as important plant symbionts, for example, Bradyrhizobium japonicum and numerous other rhizobia. Both pathogens and plant symbionts might use host-derived CO as an energy source for enhanced survival. The authors review the aerobic carbon monoxide (CO)-oxidizing bacteria, which include important human and animal pathogens and plant symbionts. Genomic and metagenomic analyses has allowed the identification of new CO oxidizers, and the cox gene sequences have provided important insights into aerobic CO dehydrogenase structure and activity. Numerous studies indicate that carbon monoxide (CO) participates in a broader range of processes than any other single molecule, ranging from subcellular to planetary scales. Despite its toxicity to many organisms, a diverse group of bacteria that span multiple phylogenetic lineages metabolize CO. These bacteria are globally distributed and include pathogens, plant symbionts and biogeochemically important lineages in soils and the oceans. New molecular and isolation techniques, as well as genome sequencing, have greatly expanded our knowledge of the diversity of CO oxidizers. Here, we present a newly emerging picture of the distribution, diversity and ecology of aerobic CO-oxidizing bacteria.

Water pollution with toxic hexavalent chromium, Cr(VI), is an environmental threat that has a direct impact on living organisms. The use of microorganisms from microbial mats to remove Cr(VI) has scarcely been investigated. Here, we isolated aerobic heterotrophic bacteria from a Cr-polluted microbial mat found in a mining site in Oman, and investigated their ability to remove Cr(VI), and the underlying mechanism(s) of removal. All isolates fell phylogenetically into the genera Enterobacter , Bacillus, and Cupriavidus , and could completely remove 1 mg L −1 Cr(VI) in 6 days. The strains could tolerate up to 2000 mg L −1 Cr(VI), and exhibited the highest Cr(VI) removal rate at 100 ± 9 mg L −1 d −1 . Using scanning electron microscopy (SEM) coupled with elemental analysis, the strains were shown to adsorb Cr(VI) at their cell surfaces. The functional groups OH, NH 2 , Alkyl, Metal-O, and Cr(VI)-O were involved in the biosorption process. In addition, the strains were shown to reduce Cr(VI) to Cr(III) with the involvement of chromate reductase enzyme. We conclude that the aerobic heterotrophic bacteria isolated from Cr-polluted microbial mats use biosorption and bioreduction processes to remove Cr(VI) from wastewater.

Aerobic exercise improves the three stages of emotion regulation: perception, valuation and action. It reduces the perception of negative emotions, encourages individuals to reinterpret emotional situations in a positive or non-emotional manner, and enhances control over emotion expression behaviours. These effects are generated via increased prefrontal cortex activation, the strengthening of functional connections between the amygdala and several other brain regions, and the enhancement of the plasticity of key emotion regulation pathways and nodes, such as the uncinate fasciculus. The effect of aerobic exercise on emotion regulation is influenced by the exercise intensity and duration, and by individuals’ exercise experience. Future research may explore the key neural basis of aerobic exercise’s promotion of emotion regulation.

Cognitive training (CT) and aerobic exercise both show promising moderate impact on cognition and everyday functioning in schizophrenia. Aerobic exercise is hypothesized to increase brain-derived neurotrophic factor (BDNF) and thereby synaptic plasticity, leading to increased learning capacity. Systematic CT should take advantage of increased learning capacity and be more effective when combined with aerobic exercise. We examined the impact of a 6-month program of cognitive training & exercise (CT&E) compared to cognitive training alone (CT) in 47 first-episode schizophrenia outpatients. All participants were provided the same Posit Science computerized CT, 4 h/week, using BrainHQ and SocialVille programs. The CT&E group also participated in total body circuit training exercises to enhance aerobic conditioning. Clinic and home-based exercise were combined for a target of 150 min per week. The MATRICS Consensus Cognitive Battery Overall Composite improved significantly more with CT&E than with CT alone ( = 0.04), particularly in the first 3 months (6.5 2.2 T-score points, < 0.02). Work/school functioning improved substantially more with CT&E than with CT alone by 6 months ( < 0.001). BDNF gain tended to predict the amount of cognitive gain but did not reach significance. The cognitive gain by 3 months predicted the amount of work/school functioning improvement at 6 months. The amount of exercise completed was strongly associated with the degree of cognitive and work/school functioning improvement. Aerobic exercise significantly enhances the impact of CT on cognition and functional outcome in first-episode schizophrenia, apparently driven by the amount of exercise completed.