109 research outputs found
STUDY ON PHYSICAL TRAINING IN THE LIPID METABOLISM REGULATION OF OBESE ADOLESCENTS
ABSTRACT Introduction In proportion to the development of the economy, the problem of obesity among adolescents is also increasing. This abnormal lipid metabolism index can influence other physical diseases besides harming the social development of youth. Objective Investigate physical training and the regulation of lipid metabolism in adolescents, improving the metabolic index of obese youth. Methods 80 obese adolescents with equal numbers of both genders were randomly assigned into experimental and control groups. The experimental group received daily 80-min sports training (aerobics, walking, badminton, swimming, and other sports with low intensity and long duration) six times a week for one month, without distinction of exercise intensity or frequency for gender. A comparison method was performed between the groups before and after the intervention with indicators including body weight, BMI, fluid ratio, water measurement, waist, hip, skinfold thickness, FBG, CT, Tg, HDL - C, and LDL - C, among others. Results Physical training can effectively improve adolescents’ body shape. Blood indices and other indicators except for HDL-C positively correlate with this body shape. Physical training substantially improved lipid metabolism in obese adolescents. Conclusion The exercise regimen of this experiment proved to be simple and manageable, offering adolescents a healthier physical and more confidence in their daily study, life, and social interaction, but also reducing several diseases caused by obesity. Due to the ease of replication, the sample size can be expanded to universal conclusions, making it feasible to popularize. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.</div
Data for: Secondary sympatry after allopatric divergence explains avian speciation and high species diversity in the Himalayas-Hengduan mountains
Gene sequences for the studied four sister bird pairs in the present study
Electrostatic Recognition and Induced Fit in the κ-PVIIA Toxin Binding to <i>Shaker</i> Potassium Channel
Brownian dynamics (BD) and molecular dynamics (MD) simulations and electrostatic calculations
were performed to study the binding process of κ-PVIIA to the Shaker potassium channel and the structure
of the resulting complex. BD simulations, guided by electrostatic interactions, led to an initial alignment
between the toxin and the channel protein. MD simulations were then carried out to allow for rearrangements
from this initial structure. After ∼4 ns, a critical “induced fit” process was observed to last for ∼2 ns. In this
process, the interface was reorganized, and side chains were moved so that favorable atomic contacts
were formed or strengthened, while unfavorable contacts were eliminated. The final complex structure
was stabilized through electrostatic interactions with the positively charged side chain of Lys7 of κ-PVIIA
deeply inserted into the channel pore and other hydrogen bonds and by hydrophobic interactions involving
Phe9 and Phe23 of the toxin. The validity of the predicted structure for the complex was assessed by
calculating the effects of mutating charged and polar residues of both the toxin and the channel protein,
with the calculated effects correlating reasonably well with experimental data. The present study suggests
a general binding mechanism, whereby proteins are pre-aligned in their diffusional encounter by long-range electrostatic attraction, and nanosecond-scale rearrangements within the initial complex then lead
to a specifically bound complex
HEART RATE MONITORING IN SPECIAL TRAINING FOR BOXERS
ABSTRACT Introduction Chinese boxing is an aggressive, competitive, and combative sport. During its performance, good physical fitness and a stable heart rate can determine the athletes’ sports performance. Objective Study special physical training methods of Chinese boxing athletes by monitoring their heart rates. Methods The implementation period of the experiment totaled eight weeks, performed three times a week. The control group did not get any specific physical training while the experimental group received special physical training, properly protocoled. Their indices were measured before, during, and after the experiment, with classification and data analysis by Excel and SPSS software. Results The fitness data of the experimental group were significantly improved, with the heart rate more stable, corroborating the effectiveness of the special training. Conclusion The use of special physical training can optimize and better adjust the pre-existing protocol according to the athletes’ real competition needs, improving the specialized physical fitness and the athletes’ competitive level. It also helps stabilize the heart rate, helping athletes get better results in combat. Level of evidence II; Therapeutic studies - investigating treatment outcomes.</div
LINC01578 affects the radiation resistance of lung cancer cells through regulating microRNA-216b-5p/TBL1XR1 axis
Radiation resistance largely limits the survival of patients with non-small-cell lung cancer (NSCLC). To understand the mechanism underlying radiation resistance, we explored the influence of LINC01578 in radiation-resistant NSCLC cells. LINC01578, miR-216b-5p and Transducin (beta)-like 1 X-linked receptor 1 (TBL1XR1) expression was evaluated in patients with NSCLC, and their correlation with patients’ prognosis was examined. Radiation-resistant NSCLC cell line (A549-RR) was induced and treated with oligonucleotide or plasmid transfection, and cell biological functions were captured. The interplay between LINC01578, miR-216b-5p and TBL1XR1 was clarified. NSCLC patients showed high LINC01578 and TBL1XR1 expression, and low miR-216b-5p expression, which was correlated to shorter patients’ prognosis, respectively. LINC01578 or TBL1XR1 deficiency or miR-216b-5p elevation suppressed the functional activities of A549-RR cells. LINC01578 suppression elevated miR-216b-5p expression, consequently leading to the down-regulation of TBL1XR1. miR-216b-5p silencing or TBL1XR1 overexpression compromised LINC01578 knockdown’s effects on radiation resistance of A549-RR cells. In brief, LINC01578 suppresses miR-216b-5p and enhances TBL1XR1 expression, thus to promote biological functions of radiation-resistant NSCLC cells.</p
REHABILITATION OF KNEE INJURY BY CHINESE BOXING
ABSTRACT Introduction: Chinese boxing is a highly combative sport and injuries are inevitable. Rehabilitation of knee joint injuries can not only save the athlete’s professional career but also improve their prevention ability. Objective: Study the situation of knee joint injuries in Chinese boxing and explore the strategies of sports rehabilitation. Methods: This experiment lasted 8 weeks. The knee joint activity and daily exercise ability of the control and experimental groups were tested. Results: In the experimental group, the knee joint extension range was increased to - 1.61° (± 2.228), the knee joint flexion range was increased to 97.14° (± 6.430), the walking ability score was increased to 32.25 (± 5.751) points, and the stair climbing and descending ability score was increased to 35.12 (± 8.764) points. The control group’s scores were also optimized, but the range of optimization was smaller than that of the experimental group. Conclusion: Compared with traditional physical therapy and massage, sports rehabilitation training has a more significant effect on improving the range of motion and prevention ability on athletes’ knee joints and should be promoted. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.</div
Coupling Cu Single Atoms and Phase Junction for Photocatalytic CO<sub>2</sub> Reduction with 100% CO Selectivity
Reducing CO2 through artificial photosynthesis
is a
remarkable strategy for converting solar energy into useful chemical
feedstocks. However, most photocatalytic systems suffer from low efficiency
owing to insufficient active sites and the lack of a directional charge-transfer
channel. Herein, we develop Cu single atoms (SAs) on the nitrogen-doped
carbon anchored on TiO2 with the anatase–rutile
mixed phase (Cu SAs/TiO2), which shows 100% CO selectivity
and high apparent quantum efficiency of 2.0% at 420 nm in photocatalytic
CO2 reduction with H2O vapor. Such a high performance
is ascribed to the synergetic effect of Cu SAs and phase junction,
where Cu SAs act as adsorption and activation sites of CO2 and phase junction accelerates the migration of photogenerated electrons
along the Ti–N–Cu–(O–CO2) channel.
Theoretical calculation further shows that the strong hybridization
of Cu 3d and CO2–O 2p orbitals promotes the electron
transfer from Cu SAs to CO2, effectively optimizing the
rate-limiting step (CO2* → COOH*)
Results of the regional error correction model.
<p>% level.<sup>a</sup> Denotes significance at the 1</p><p>% level.<sup>b</sup> Denotes significance at the 5</p
Factors Affecting Regional Per-Capita Carbon Emissions in China Based on an LMDI Factor Decomposition Model
<div><p>China is considered to be the main carbon producer in the world. The per-capita carbon emissions indicator is an important measure of the regional carbon emissions situation. This study used the LMDI factor decomposition model–panel co-integration test two-step method to analyze the factors that affect per-capita carbon emissions. The main results are as follows. (1) During 1997, Eastern China, Central China, and Western China ranked first, second, and third in the per-capita carbon emissions, while in 2009 the pecking order changed to Eastern China, Western China, and Central China. (2) According to the LMDI decomposition results, the key driver boosting the per-capita carbon emissions in the three economic regions of China between 1997 and 2009 was economic development, and the energy efficiency was much greater than the energy structure after considering their effect on restraining increased per-capita carbon emissions. (3) Based on the decomposition, the factors that affected per-capita carbon emissions in the panel co-integration test showed that Central China had the best energy structure elasticity in its regional per-capita carbon emissions. Thus, Central China was ranked first for energy efficiency elasticity, while Western China was ranked first for economic development elasticity.</p></div
Nonplanarity of Adenine: Vibrational Transition Moment Angle Studies in Helium Nanodroplets
Mid-infrared spectra are reported for adenine monomer in helium nanodroplets. We show that there is only one tautomer of adenine, the global minimum structure, observed in helium nanodroplets and characterized by using ab initio calculations and the measurement of vibrational transition moment angles (VTMAs) for the various vibrational modes of the adenine monomer. On the basis of the VTMA analysis on the amino group of the global minimum tautomer, which gives insights into its nonplanarity, a detailed VTMA study of three lowest-energy amino tautomers of adenine is discussed in this study
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