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Sökning: WFRF:(Zhang Peng) > Högskolan i Halmstad

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1.
  • 2019
  • Tidskriftsartikel (refereegranskat)
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2.
  • Bäckhed, Fredrik, 1973, et al. (författare)
  • Dynamics and Stabilization of the Human Gut Microbiome during the First Year of Life
  • 2015
  • Ingår i: Cell Host & Microbe. - Cambridge : Elsevier BV. - 1931-3128 .- 1934-6069. ; 17:5, s. 690-703
  • Tidskriftsartikel (refereegranskat)abstract
    • The gut microbiota is central to human health, but its establishment in early life has not been quantitatively and functionally examined. Applying metagenomic analysis on fecal samples from a large cohort of Swedish infants and their mothers, we characterized the gut microbiome during the first year of life and assessed the impact of mode of delivery and feeding on its establishment. In contrast to vaginally delivered infants, the gut microbiota of infants delivered by C-section showed significantly less resemblance to their mothers. Nutrition had a major impact on early microbiota composition and function, with cessation of breast-feeding, rather than introduction of solid food, being required for maturation into an adult-like microbiota. Microbiota composition and ecological network had distinctive features at each sampled stage, in accordance with functional maturation of the microbiome. Our findings establish a framework for understanding the interplay between the gut microbiome and the human body in early life.
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3.
  • Wang, Jun, et al. (författare)
  • A New Method to Improve Running Economy and Maximal Aerobic Power in Athletes : Endurance Training With Periodic Carbon Monoxide Inhalation
  • 2019
  • Ingår i: Frontiers in Physiology. - Lausanne : Frontiers Media S.A.. - 1664-042X. ; 10
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Altitude training stimulates erythropoietin hormone (EPO) release and increases blood hemoglobin (Hb) mass, which may result in improved oxygen (O-2) transport capacity. It was hypothesized in the present study that periodic inhalation of carbon monoxide (CO) might elicit similar physiological adaptations compared to altitude training.Methods: Twelve male college student athletes, who were well-trained soccer players, participated. They performed a 4-week treadmill-training program, five times a week. Participants were randomly assigned into an experimental group with inhaling CO (INCO) (1 mL/kg body weight for 2 min) in O-2 (4 L) before all training sessions and a control group without inhaling CO (NOCO). CO and EPO concentrations in venous blood were first measured acutely at the 1st, 2nd, 4th, 6th, and 8th hour after INCO, and total hemoglobin mass (tHb), running economy and VO(2)max were measured before and after the 4 weeks training intervention.Results: HbCO% increased from 0.7 to 4.4% (P < 0.05) after 1 h of CO inhalation and EPO increased from 1.9 to 2.7 mIU/mL after 4 h post CO inhalation (P < 0.05) acutely before the intervention. After the training, the tHb and VO(2)max in the INCO group increased significantly by 3.7 and 2.7%, respectively, while no significant differences were observed in the NOCO condition. O-2 uptake at given submaximal speeds declined by approximately 4% in the INCO group.Conclusion: Acutely, EPO increased sharply post CO inhalation, peaking at 4 h post inhalation. 4-weeks of training with CO inhalation before exercise sessions improved tHb and VO(2)max as well as running economy, suggesting that moderate CO inhalation could be a new method to improve the endurance performance in athletes. © 2019 Frontiers Media S.A. All Rights Reserved.
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