Publications by authors named "Hongxiang Zheng"

This systematic review and meta-analysis evaluated the impact of intraoperative epidural steroid-soaked gelatin sponge in lumbar spine surgery for conditions like spinal stenosis and nerve root compression. Surgery often involves removing structures to decompress the nerves. Steroids are used to alleviate inflammation and pain, with gelatin sponges serving as carriers to extend their effect.

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Since plants are sessile organisms, they are inevitably exposed to various environmental stresses, and the accumulation of reactive oxygen species (ROS) could affect the growth and development of plants. ROS play either positive or negative roles in various plant life activities as a two-edge sword. Class III peroxidase (CIII PRX) is a highly conserved antioxidant enzyme family specifically identified in plants, which is involved in maintaining ROS homeostasis in the cell and plays multiple functions in plant growth metabolism and stress response.

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  • The accumulation of cadmium (Cd) in rice is a health risk, but using foliar zinc (Zn) fertilizer can reduce Cd levels in grains grown in contaminated soils.
  • High levels of applied Zn can enhance the transport of Cd to the grains by affecting its movement in the plant, due to reduced retention of Cd in leaf cells and increased desorption from leaf walls.
  • Researchers found that while Zn helps with Cd allocation in rice, using it in areas with high atmospheric Cd could lead to unintended grain contamination, so caution is recommended.
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N 6-methyladenosine (m6A) modification is a crucial and widespread molecular mechanism governing plant development and stress tolerance. The specific impact of m6A regulation on plants with inherently high salt tolerance remains unclear. Existing research primarily focuses on the overexpression or knockout of individual writer or eraser components to alter m6A levels.

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  • Modern humans have seen rapid population growth recently, potentially due to relaxed selective pressures from increased food availability since the Last Glacial Maximum.* -
  • A study analyzed mitochondrial DNA from 26,419 East Eurasian genomes, finding higher N/S ratios in populations that expanded, suggesting weaker purifying selection and retention of mildly harmful mutations.* -
  • These findings imply that the expanded populations faced less selective pressure, allowing for the accumulation of mutations that could influence current health and disease trends.*
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  • * In a study of 2,877 Han Chinese individuals, haplogroup M7 was identified as significantly linked to lower body mass index, waist circumference, and waist-to-hip ratio, making it a potential factor in reduced obesity risk.
  • * Among the M7 haplogroup, the subhaplogroup M7b1a1 was highlighted as most associated with lower obesity risk, and specific mutations in it could impact mitochondrial function, with additional interactions noted with certain nuclear variants.
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Background: Senile osteoporosis (SOP) is an age-related systemic metabolic bone disorder. Previous studies have proved that Zhuang-Gu-Fang (ZGF) modulates myokines, stimulates osteogenic differentiation, and mitigates osteoporosis.

Objective: To elucidate the mechanism by which ZGF promotes osteogenic differentiation via myoblast and myoblast exosomal microRNAs (miRNAs) and investigate its potential implications in senile osteoporosis.

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Eggshell gloss is an important characteristic for the manifestation of eggshell appearance. However, no study has yet identified potential candidate genes for eggshell gloss between high-gloss (HG) and low-gloss (LG) chickens. The aim of this study was to perform a preliminary investigation into the formation mechanism of eggshell gloss and to identify potential genes.

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Salt stress adversely affects plant growth and development. It is necessary to understand the underlying salt response mechanism to improve salt tolerance in plants. MYB transcription factors can regulate plant responses to salt stress.

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Sorghum ( L.) is one of the top five cereal crops in the world in terms of production and planting area and is widely grown in areas with severe abiotic stresses such as drought and saline-alkali land due to its excellent stress resistance. Moreover, sorghum is a rare multipurpose crop that can be classified into grain sorghum, energy sorghum, and silage sorghum according to its domestication direction and utilization traits, endowing it with broad breeding and economic value.

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Studying language evolution brings a crucial perspective to bear on questions of human prehistory. As the most linguistically diverse region on earth, East and Southeast Asia have witnessed extensive sociocultural and ethnic contacts among different language communities. Especially, the Kra-Dai language family exhibits tremendous socio-cultural importance in these regions.

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Synchrotron-based micro-X-ray fluorescence analysis (µXRF) is a nondestructive and highly sensitive technique. However, element mapping of rare earth elements (REEs) under standard conditions requires care, since energy-dispersive detectors are not able to differentiate accurately between REEs L-shell X-ray emission lines overlapping with K-shell X-ray emission lines of common transition elements of high concentrations. We aim to test REE element mapping with high-energy interference-free excitation of the REE K-lines on hyperaccumulator plant tissues and compare with measurements with REE L-shell excitation at the microprobe experiment of beamline P06 (PETRA III, DESY).

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Rare earth elements (REEs) are critical for numerous modern technologies, and demand is increasing globally; however, production steps are resource-intensive and environmentally damaging. Some plant species are able to hyperaccumulate REEs, and understanding the biology behind this phenomenon could play a pivotal role in developing more environmentally friendly REE recovery technologies. Here, we identified a REE transporter NRAMP REE Transporter 1 (NREET1) from the REE hyperaccumulator fern .

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Dicranopteris linearis is the best-known hyperaccumulator species of rare earth elements (REEs) and silicon (Si), capable of dealing with toxic level of REEs. Hence, this study aimed to clarify how D. linearis leaves cope with excessive REE stress, and whether Si plays a role in REE detoxification.

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SbMYBHv33 negatively regulated biomass accumulation and salt tolerance in sorghum and Arabidopsis by regulating reactive oxygen species accumulation and ion levels. Salt stress is one of the main types of environmental stress leading to a reduction in crop yield worldwide. Plants have also evolved a variety of corresponding regulatory pathways to resist environmental stress damage.

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  • * Researchers analyzed a total of 2,182 NGS results from 1,484 patients, finding HPV B19 in 39 samples from 33 patients, predominantly in cerebrospinal fluid and blood.
  • * The majority of those infected had underlying conditions that lowered their immunity and presented with symptoms like fever, anemia, and severe nervous system issues, with a significant number improving after antiviral treatment.
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Decline in mitochondrial function underlies aging and age-related diseases, but the role of mitochondrial DNA (mtDNA) mutations in these processes remains elusive. To investigate patterns of mtDNA mutations, it is particularly important to quantify mtDNA mutations and their associated pathogenic effects at the single-cell level. However, existing single-cell mtDNA sequencing approaches remain inefficient due to high cost and low mtDNA on-target rates.

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Salt stress is one of the major causes of reduced crop production, limiting agricultural development globally. Plants have evolved with complex systems to maintain the balance between growth and stress responses, where signaling pathways such as hormone signaling play key roles. Recent studies revealed that hormones are modulated by microRNAs (miRNAs).

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Ginsenoside Rg1 (Rg1) has been demonstrated to have antidiabetic and antiosteoporotic activities. The aim of this study was to investigate the protective effect of Rg1 against diabetic osteoporosis and the underlying mechanism. , we found that Rg1 increased the number of osteoprogenitors and alleviated high glucose (HG) induced apoptosis of osteoprogenitors by MTT assays and flow cytometry.

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Premixed hydrogen-air explosion experiments were carried out in a 1000 mm × 50 mm × 10 mm half-open narrow channel, concerning with the influences of equivalence ratio and ignition position on explosion behaviors. Experimental phenomena were different from explosion in large space. The results indicated that when ignited at the closed end of the channel, three overpressure peaks appeared, caused by the rupture of the film, Helmholtz Oscillation, and the flame-acoustic interaction, respectively.

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SbWRKY55 functions as a key component of the ABA-mediated signaling pathway; transgenic sorghum regulates plant responses to saline environments and will help save arable land and ensure food security. Salt tolerance in plants is triggered by various environmental stress factors and endogenous hormonal signals. Numerous studies have shown that WRKY transcription factors are involved in regulating plant salt tolerance.

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Sweet sorghum has strong stress resistance and is considered a promising energy crop. In the present study, the effects of salt on the membrane lipid metabolism of two sweet sorghum inbred lines (salt-tolerant M-81E and salt-sensitive Roma) were analyzed. After treatment with 150 mM NaCl, higher levels of fresh weight and chlorophyll fluorescence, as well as lower levels of malondialdehyde (MDA) were found in salt-tolerant M-81E.

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  • Efforts to restore degraded mine lands face challenges due to unclear drivers of biodiversity recovery and ecosystem function.
  • Plant-soil feedbacks (PSFs) play a crucial role in shaping vegetation and community structure, but mining disturbances create unique conditions that require special consideration.
  • Understanding PSFs can help predict and improve ecosystem recovery, but further research is needed to address existing challenges in this field.
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The exploitation of ion-adsorption rare earth element (REE) deposits in South China has left large areas of mine tailings. However, limited remediation practices on these tailings have been reported, and how the remediation strategies and economic plants cultivation affect the biogeochemical cycles of nutrients, REEs and Al remains unclear. The aim of the present study was to investigate the effects of the combination of the addition of soil amendment and the root development and activity of a fiber plant ramie (Boehmeria nivea L.

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  • Organic acids play a key role in the tolerance, uptake, and translocation of rare earth elements (REE) in hyperaccumulators like Phytolacca americana, although the mechanisms are not well understood.
  • This study is the first to illustrate how P. americana enhances REE tolerance and accumulation through the secretion of organic acids from its roots, particularly highlighting the effect of yttrium (Y) on oxalate secretion.
  • The research showed that while oxalate secretion does not prevent Y uptake, it leads to increased levels of malate and citrate, which aid in redistributing Y from roots to shoots, suggesting a complex mechanism of detoxification and transport involving specific transport proteins.
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