[Influencing mechanism of stand age to the accumulation of microbial residue carbon in the plantations].

Clarifying the accumulation pattern of soil microbial residue carbon and its contribution to soil organic carbon (SOC) across stand age is helpful to understand the mechanism underlying soil carbon cycling. In this study, we analyzed the differences of amino sugar content, physicochemical properties and microbial composition in surface soil (0-10 cm) in young (6 a), middle-aged (13 a), near-mature (29 a), mature (38 a) and over-mature (57 a) plantations of subtropical China, quantified the microbial residue carbon content and its contribution to SOC, and discussed the mechanism. The results showed that SOC, total nitrogen, amorphous iron oxide and leucine aminopeptidase contents in the middle-aged plantation were significantly lower than those in the mature plantation.

Incidence and clinical treatment of hypertriglyceridemic acute pancreatitis: A few issues.

Hypertriglyceridemia is a well-recognized etiology of acute pancreatitis, and the incidence of hypertriglyceridemic acute pancreatitis (HTG-AP) has increased in frequency worldwide in response to lifestyle changes. It is crucial to identify hypertriglyceridemia as the cause of pancreatitis and initiate appropriate treatment. Insulin treatment produces effective lowering of triglycerides, but in our opinion, non-diabetic patients with HTG-AP require separate consideration to avoid hypoglycemia.

Prediction of moderately severe and severe acute pancreatitis in pregnancy: Several issues.

We reviewed a study addressing the development and validation of a prediction model for moderately severe and severe acute pancreatitis in pregnancy. We identified some statistical deficiencies in this article. In addition, we believe that the role of cholesterol as a predictor should be described in more detail.

Rare spontaneous extensive annular intramural esophageal dissection with endoscopic treatment: A case report.

Background: Intramural esophageal dissection (IED) is a rare disease that should be considered in patients with chest pain, dysphagia, and hematemesis. Although it occurs most frequently in older adult women with impaired coagulation or as a sequela of endoscopy, the incidence of spontaneous IED without an obvious causative agent has risen gradually.

Case Summary: This report describes a case of extensive annular IED in a 75-year-old male patient who presented with dysphagia for the past month.

Ecosystem service value effects of the Three Gorges Reservoir Area land use transformation under the perspective of "production-living-ecological" space.

In the context of rapid socio-economic development, eliciting "production-living-ecological" space (PLES) changes with corresponding ecosystem service benefits is critical for national land optimization and regional sustainability. Based on land use data obtained via remote sensing of 1980, 2000, 2018, and from a PLES perspective, we applied geo-information Tupu to depict land use transformations in the Three Gorges Reservoir Area (TGRA) from 1980 to 2018. The ecological/environmental effects of land use transformation were also explored based on the contribution value of ecosystem service.

[Root architecture and fine root characteristics of Juglans mandshurica saplings in different habitats in the secondary forest on the west slope of Zhangguangcailing, China].

The whole root excavation method was used to examine root configuration of Juglans mandshurica, with the age of 5-6 years in three habitats (forest edge, gap, and canopy) in a secondary forest on the western part of Zhangguangcailing Mountains. Root structure and fine root function were measured. The root topological index, average joint length, cross-sectional area ratio before and after root branching were calculated and fine root chemical compositions were analyzed.

Proteomic analysis of the cerebrospinal fluid of Parkinson's disease patients pre- and post-deep brain stimulation.

Aims: To investigate alterations in protein expression associated with deep brain stimulation (DBS) in an attempt to elucidate possible mechanisms of action .

Methods: Cerebrospinal fluid (CSF), obtained from six Parkinson's disease (PD) patients (pre- and post-DBS) and from six normal healthy controls, was studied for differentially expressed proteins. 2-D DIGE, in combination with MALDI-TOF and TOF-TOF Mass Spectrometry (MS) or ESI-MS, was used to identify the changed proteins (3 PD patients and 3 controls).

Characterisation of the vitreous proteome in proliferative diabetic retinopathy.

Background: Diabetes can lead to serious microvascular complications such as proliferative diabetic retinopathy (PDR), which results in severe vision loss. The diabetes-induced alterations in the vitreous protein composition in diabetic patients with PDR may be responsible for the presence of PDR. The vitreous humour can be utilised in a variety of studies aimed toward the discovery of new targets for the treatment or prevention of PDR and the identification of novel disease mechanisms.

Proteomic changes in articular cartilage of human endemic osteoarthritis in China.

Kashin-Beck disease (KBD) is a chronic endemic osteochondropathy with unclear pathogenesis. It is a degenerative disease similar to osteoarthritis, but with different manifestations of cartilage damage. The aim of this investigation was to show the protein changes in KBD cartilage and to identify the candidate proteins in order to understand the pathogenesis of the disease.

Transport of receptors, receptor signaling complexes and ion channels via neuropeptide-secretory vesicles.

Stimulus-induced exocytosis of large dense-core vesicles (LDCVs) leads to discharge of neuropeptides and fusion of LDCV membranes with the plasma membrane. However, the contribution of LDCVs to the properties of the neuronal membrane remains largely unclear. The present study found that LDCVs were associated with multiple receptors, channels and signaling molecules, suggesting that neuronal sensitivity is modulated by an LDCV-mediated mechanism.

[Shotgun proteomic analysis of intervertebral disc tissues from fetal and adult subjects].

Objective: To acquire information on the IVD (intervertebral disc) proteome and analyze the differences of identified proteins during IVD development and maturation by a shotgun proteomics approach so as to identify the global protein expression patterns of IVD tissues from fetus and adults.

Methods: A 24-week fetus, a 25- and a 30-year-old adult IVD samples were collected and SDS-PAGE, RP-HPLC MS/MS shotgun analyses were performed. Bioinformational analysis with International Protein Index (IPI) database and functional classification with Gene Ontology Annotation (GOA) database were used to evaluate the results.

Proteomics approach to study the mechanism of action of grape seed proanthocyanidin extracts on arterial remodeling in diabetic rats.

Arterial remodeling is the change in structural properties of vessel in diabetes mellitus and contributes to the development of vascular complications. To prevent this development and to improve diabetic vascular complications, effective therapies directed toward the key molecular target are required. Grape seed proanthocyanidin extracts (GSPE) have been reported to be effective in treating arteriosclerosis, while little is known about the functional protein changes.