Dietary niche of in alpine meadows based on stable isotope analysis.

Understanding the dietary niche characteristics of across different population densities is of great significance for correctly recognizing its function and position in grasslands and scientifically evaluating their harmfulness. Using Bayesian stable isotope mass balance mixing model, we analyzed the dietary habits and ecological niche characteristics of four tissue types of at different population densities in the alpine meadows of the Qinghai-Tibet Plateau. The liver and muscle tissues represented short-term diets, while hair and bone tissues represented long-term diets.

Alginate Oligosaccharide and Gut Microbiota: Exploring the Key to Health.

Alginate oligosaccharide (AOS), a degradation product of alginate derived from marine brown algae, has attracted significant attention due to its potent ability to modulate gut microbiota and enhance human health. This review aims to systematically introduce current evidence on the interactions between AOS and gut microbial communities, focusing on how AOS improves health through regulating gut microbiota. Initially, the structural factors of AOS that influence their functions are highlighted, including molecular weight, monomer composition, terminal structure, and chemical modifications.

Genetic Formation of Neolithic Hongshan People and Demic Expansion of Hongshan Culture Inferred From Ancient Human Genomes.

The Hongshan culture, situated at the crossroads of northern and northeast China, represented one of the earliest complex societies in Neolithic East Asia. The remains of Hongshan culture have been found in an area stretching from today's Inner Mongolia Autonomous Region to Liaoning Province, covering an area of over 200,000 square kilometers. However, the question of how Hongshan culture occupied such a vast geographical location, following either the demic diffusion (i.

Experimental study on the biomechanical loading of a four-dimensional plate for the fixation of femoral shaft fractures.

Objective: To explore the biomechanical properties of a four-dimensional structure locking osteosynthesis plate that can alter its structure and functionality over time.

Methods: According to the AO classification (AO-A2) standard, 18 artificial femoral shaft oblique fracture models with the same position and shape were generated and subsequently randomly divided into 2 groups (n = 9). In the experimental group, the four-dimensional locking plate was fixed, and in the control group, the locking plate was fixed.

Minimal Residual Disease Detection: Implications for Clinical Diagnosis and Cancer Patient Treatment.

Minimal residual disease (MRD) serves as a pivotal biomarker for the clinical diagnosis and subsequent treatment of cancer patients. In hematological malignancies, MRD pose an increasingly serious threat to the health of Chinese people. Accurate MRD detection is essential for assessing relapse risk and optimizing therapeutic strategies, yet current methods such as flow cytometry, polymerase chain reaction (PCR), and next-generation sequencing (NGS) each have distinct limitations, and significant gaps remain in achieving optimal sensitivity and specificity of these technologies.

Transcriptome analysis reveals candidate genes involved in quercetin biosynthesis in Euphorbia maculata.

An investigation was conducted through transcriptome sequencing in various tissues at different stages to explore the quercetin biosynthesis pathway in Euphorbia maculata. A total of 83,028 unigenes was assembled utilizing Trinity software, with an N50 length of 1721 bp and a mean length of 1004 bp. Among these unigenes, 51,822 were annotated in six public databases.

Magnesium degradation-induced variable fixation plates promote bone healing in rabbits.

Background: Both initial mechanical stability and subsequent axial interfragmentary micromotion at fracture ends play crucial roles in fracture healing. However, the conversion timing of variable fixation and its effect on and mechanism of fracture healing remain inadequately explored.

Methods: A magnesium degradation-induced variable fixation plate (MVFP) for femurs was designed, and its conversion timing was investigated both in vitro and in vivo.

Effect of different HA/β-TCP coated 3D printed bioceramic scaffolds on repairing large bone defects in rabbits.

Background: Treatment of large segmental bone defects is still a major clinical challenge, and bone grafting is the main method. The development of novel bone graft substitutes will help solve this problem.

Methods: Porous bioceramics hydroxyapatite (HA) scaffolds coated with different ratios of HA/β-tricalcium phosphate (β-TCP) were prepared by 3D printing.

The role and mechanism of NDST1/NULP1 regulating right ventricular hypertrophy in hypoxic pulmonary hypertension.

Hypoxia leads to hypoxic pulmonary hypertension (HPH), causing right ventricular hypertrophy (RVH). RVH becomes a significant and nonnegligible public health issue in the world. In our study, we successfully established the HPH rat model and found that RVH happened in HPH, and then we observed an increased inflammation response in the heart tissue of HPH-induced RVH rats.

Spatiotemporal characteristics of soil erosion in a typical watershed consisting of different landscape: A case study of the Qin River Basin.

Soil erosion has a severe impact on habitat and productivity. It is considered to be a major environmental threat prevalent in ecosystems. However, few researchers have studied the spatial distribution of soil erosion intensity among different geographic environmental factors.

Meta-Decomposition of Efficacy, Incidence of Pressure Ulcer, and Prognosis of Stroke Sufferers after Applying Evidence-Based Ministration.

In order to meta-analyze the effect of evidence-based ministration on the efficacy, incidence of pressure ulcers and prognosis of stroke are used. Literature retrieval is carried out in Wanfang Medicine, PubMed database, biomedical literature, and other medical databases through medical data and computers, focusing on the efficacy, pressure ulcer incidence, and prognosis of stroke sufferers after applying evidence-based ministration. For the relevant medical information literature on the effect, RevMan 5.

Chinese English as Foreign Language Teachers' Self-Efficacy and Motivation as Predictors of Burnout.

In contemporary education, educators are a central and focal component of academic structures accountable for education growth. Educators have an effective role in presenting and planning an effective and important academic program. However, they usually experience burnout due to their stressful job that affects the procedure of their teaching.

Application Effect of Intra-Abdominal Pressure Monitoring System in Early Enteral Nutrition Nursing of ICU Patients.

In order to study and explore the application effect of intra-abdominal pressure monitoring in guiding ICU patients to implement early enteral nutrition therapy, we selected patients admitted to the emergency department of a hospital and classified them into groups A ( = 105) and B ( = 98). Among them, the A group gave early enteral nutrition treatment by monitoring the residual gastric mass, and the B group gave early enteral nutrition treatment by monitoring the stomach. It has been established that, compared to gastric residue monitoring, intra-abdominal pressure monitoring in ICU patients with early enteral nutrition therapy has an obvious advantage, it helps to improve the prognosis of patients, and intra-abdominal pressure combined with gastric residual monitoring scheme can effectively reduce the early enteral nutrition in the ICU patients, the incidence of abdominal distension, vomiting, and make it reach the goal as soon as possible.

Effects of removal on the nutrient stoichiometry of -dominated grasslands in the Qinghai-Tibetan plateau.

Background: Stoichiometric relations drive powerful constraints in several fundamental ecosystem processes. However, limited studies have been conducted on the ecological stoichiometry of plants after the change of community composition induced by removal in alpine grassland in the Qinghai-Tibetan Plateau.

Methods: We investigated the effects of removal on ecological stoichiometry by estimating the C:N:P stoichiometry in species, functional group and community levels of the ecosystem.

Does Epichloë Endophyte Enhance Host Tolerance to Root Hemiparasite?

Epichloë endophytes have been shown to be mutualistic symbionts of cool-season grasses under most environmental conditions. Although pairwise interactions between hemiparasites and their hosts are heavily affected by host-associated symbiotic microorganisms, little attention has been paid to the effects of microbe-plant interactions, particularly endophytic symbiosis, in studies examining the effects of parasitic plants on host performance. In this study, we performed a greenhouse experiment to examine the effects of hereditary Epichloë endophyte symbiosis on the growth of two host grasses (Stipa purpurea and Elymus tangutorum) in the presence or absence of a facultative root hemiparasite (Pedicularis kansuensis Maxim).

Transcriptome Analysis and Development of SSR Molecular Markers in Glycyrrhiza uralensis Fisch.

Licorice is an important traditional Chinese medicine with clinical and industrial applications. Genetic resources of licorice are insufficient for analysis of molecular biology and genetic functions; as such, transcriptome sequencing must be conducted for functional characterization and development of molecular markers. In this study, transcriptome sequencing on the Illumina HiSeq 2500 sequencing platform generated a total of 5.