Publications by authors named "Xiangyu Qi"

Background: Acetabular fractures typically require open surgery to restore hip joint function. Openness may lead to serious tissue damage, increased bleeding, and the risk of nerve and vascular damage. Minimally invasive closed reduction or percutaneous fixation aims to minimize additional harm to patients and provide reliable fixation to promote fracture recovery and functional rehabilitation.

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  • The study focused on how different reduction techniques for femoral neck fractures affect biomechanical outcomes, considering variables like tip-apex distance and bone density.
  • Researchers used finite element modeling to analyze the impact of these factors under a simulated load of 2100 N.
  • Results showed that negative reduction created higher stress levels in the femoral neck, especially when the tip-apex distance exceeded 10 mm and in cases of osteoporosis, suggesting a preference for positive reduction techniques when possible.
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Background: Bigleaf hydrangea (Hydrangea macrophylla) is a widely cultivated ornamental plant species. Leaf spot disease, caused by Corynespora cassiicola, poses a significant threat to the ornamental quality and economic value of hydrangeas. However, the disease resistance breeding of hydrangea is limited due to the lacking of resistant varieties and genes.

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Objective: Obesity is a global health concern. Studying the heterogeneity of adipose-derived stem cells (ADSCs) plays a pivotal role in understanding metabolic disorders, such as obesity.

Methods: Mass cytometry was used to determine the depot-specific differences and heterogeneity of ADSCs and their alterations at the single-cell level in a diet-induced-obesity (DIO) model in which mice were treated with liraglutide.

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  • The study investigates how steel slag can be used as a substrate for rooting cuttings, aiming to create a mixed substrate that utilizes solid waste effectively while replacing traditional cutting substrates.
  • Various substrates with 10% to 40% steel slag were analyzed for their physical and chemical properties, and their effects on rooting 'Red Beauty' cuttings were compared to conventional substrates (peat and perlite).
  • Results indicated that the 20% steel slag substrate (T) yielded superior root growth and development, having the highest performance in several metrics, while also showing better properties such as higher pH and conductivity compared to traditional substrates.
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  • Aluminum toxicity negatively affects plant growth, particularly in acidic soils, and Heavy metal ATPases (HMAs) are vital for transporting heavy metals, but their specific role in aluminum transport remains unclear.
  • The study discovered eight HmHMA genes in Hydrangea macrophylla, categorized into two clades, with uneven distribution on six chromosomes, and analyzed their properties and structures.
  • HmHMA2 was predominantly expressed in roots and flowers under aluminum stress, showing increased aluminum tolerance and reduced oxidative stress in hydrangea leaf discs when overexpressed, indicating its significant role in aluminum transport and tolerance.
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Embryo abortion at the heart-shaped stage is the main reason for the failure of interspecific hybridization of hydrangea, and salicylic acid plays a key role during embryo abortion. Difficulties in obtaining seeds from interspecific hybridization between Hydrangea macrophylla and H. arborescens had severely restricted the process of breeding new hydrangea varieties.

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Tactile sensing, especially pressure and temperature recognition, is crucial for both humans and robots in identifying objects. The general solutions, which use piezoresistive, capacitive, and thermal resistance effects, are usually subject to single-mode sensing and an energy supply. Here, we propose a multimode self-powered sensor.

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is a key model plant for studying legume plants, particularly alfalfa (), due to its well-defined genetic background. Plant-specific () genes play various roles in plant growth and development, abiotic stress, and hormone responses. However, limited information is available on research in .

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Objective: We analyzed the influence of the location of the upper and lower cement on the sandwich vertebrae (SV) by computer finite element analysis.

Materials And Methods: A finite element model of the spinal segment of T11-L1 was constructed and 6 mL of cement was built into T11 and L1 simultaneously. According to the various distributions of bone cement at T11 and L1, the following four groups were formed: (i) Group B-B: bilateral bone cement reinforcement in both T11 and L1 vertebral bodies; (ii) Group L-B: left unilateral reinforcement in T11 and bilateral reinforcement in L1; (iii) Group L-R: unilateral cement reinforcement in both T11 and L1 (cross); (iv) Group L-L: unilateral cement reinforcement in both T11 and L1 (ipsilateral side).

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  • The study examines the biomechanical effects of lateral femoral wall thickness on two internal fixation treatments—PFNA and DHS + CS—for intertrochanteric fractures using finite element analysis.
  • Researchers created a femoral fracture model based on a healthy adult's CT data and simulated both fixation methods to analyze stress and displacement under physiological loads.
  • Results showed that PFNA provided better mechanical stability than DHS + CS, and thinner lateral femoral walls increased the risk of fixation failures, suggesting caution with using extramedullary fixation in those cases.
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Plant growth-promoting rhizobacteria have been shown to enhance plant tolerance to drought stress through various mechanisms. However, there is limited research on improving drought resistance in alfalfa by genetically modifying PGPR to produce increased levels of cytokinins. Herein, we employed synthetic biology approaches to engineer two novel strains of capable of overproducing trans-Zeatin and investigated their potential in enhancing drought tolerance in alfalfa.

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Livestock's live body dimensions are a pivotal indicator of economic output. Manual measurement is labor-intensive and time-consuming, often eliciting stress responses in the livestock. With the advancement of computer technology, the techniques for livestock live body dimension measurement have progressed rapidly, yielding significant research achievements.

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Chemotherapy is widely used to treat colorectal cancer (CRC). Despite its substantial benefits, the development of drug resistance and adverse effects remain challenging. This study aimed to elucidate a novel role of glucagon in anti-cancer therapy.

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Wearable electronics have received extensive attention in human-machine interactions, robotics, and health monitoring. The use of multifunctional sensors that are capable of measuring a variety of mechanical or environmental stimuli can provide new functionalities for wearable electronics. Advancements in material science and system integration technologies have contributed to the development of high-performance flexible multifunctional sensors.

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Inflammation and nutrition related proteins participate in the development of acute myeloid leukemia (AML). It has been reported that the albumin-to-fibrinogen ratio (AFR) could serve as a prognostic indicator in patients with malignancy, but the precise relevance of AML is unclear. This study aimed to evaluate the effect of AFR on survival prognosis in patients with AML.

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The hypothalamus, as a vital brain region for endocrine and metabolism regulation, undergoes functional disruption during obesity.The anti-aging effect of metformin has come into focus. However, whether it has the potential to ameliorate hypothalamic aging and dysfunction in the obese state remains unclear.

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Obesity is a prominent risk factor for male infertility, and a high-fat diet is an important cause of obesity. Therefore, diet control can reduce body weight and regulate blood glucose and lipids, but it remains unclear whether it can improve male fertility and its mechanism. This study explores the effects of switching from a high-fat diet (HFD) to a normal diet (ND) on the fertility potential of obese male mice and its related mechanisms.

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Background: Studies indicate a relationship between a high-fat diet (HFD) and sperm quality. However, the time-dependent adverse effects of a HFD on sperm parameters and the underlying mechanisms remain unclear.

Objectives: The present study was designed to determine the effects of a HFD on sperm quality at various time points in order to assess whether a HFD causes cumulative damage to sperm.

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Introduction: Age-related decline in testosterone is associated with Leydig cell aging with impaired testosterone synthesis in aging. Obesity accelerates the age-related decline in testosterone. However, the mechanisms underlying the Leydig cell aging and the effects of obesity on Leydig cell aging remain unclear.

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Small heat shock proteins (HSP20s) are a significant factor in plant growth and development in response to abiotic stress. In this study, we investigated the role of HSP20s' response to the heat stress of introduced into low-altitude areas. The gene family was identified based on the genome-wide data of , and the expression patterns of tissue specificity and the response to abiotic stresses were evaluated.

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Jasmine [ (L.) Aiton] is a commercially important cultivated plant species known for its fragrant flowers used in the perfume industry, medicine and cosmetics. In the present study, we obtained a draft genome for the cultivar 'Danbanmoli' (JSDB, a single-petal phenotype).

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Background: Hydrangea macrophylla var. Maculata 'Yinbianxiuqiu' (YB) is an excellent plant species with beautiful flowers and leaves with silvery white edges. However, there are few reports on its leaf color characteristics and color formation mechanism.

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Hydrangea [Hydrangea macrophylla (Thunb.) Ser.] is a high aluminum-tolerant ornamental plant species, which has a specific characteristic of color change, ie.

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