[Effects of elevated CO concentration, warming, and winter wheat planting on soil enzyme activities].

Understanding the responses of soil enzyme activities to elevated CO concentration and warming can provide a scientific basis for nutrient management of croplands under global climate change. We conducted a pot expe-riment with climate chamber to examine the effects of elevated CO concentration and warming and winter wheat growth on soil enzyme activities. There were four climate scenarios: control (CK, 400 μmol·mol CO concentration+normal ambient temperature), and CO concentration elevation (ECO, 800 μmol·mol CO concentration+normal ambient temperature), elevated temperature (ET, 400 μmol·mol + temperature increased 4 ℃), and elevated CO concentration and temperature (ECO+T, 800 μmol·mol CO concentration + temperature increased 4 ℃).

[Analysis of Agranulocytosis Time and Its Influencing Factors in Patients with Hematological Malignancies Treated with rhIL-11 combined rhG-CSF].

Objective: To explore the intervention effect of recombinant human interleukin-11 (rhIL-11) and recombinant human granulocyte-colony stimulating factor (rhG-CSF) on the duration and severity of agranulocytosis in patients with hematological malignancies after chemotherapy, and to analyze the influencing factors.

Methods: The data of hematological malignancy patients treated with rhIL-11 and rhG-CSF after chemotherapy in the hematology department of The First Hospital of Lanzhou University from July 2017 to July 2020 were collected retrospectively. The duration and differences of agranulocytosis in differeent groups were compared by univariate analysis, and the influencing factors of agranulocytosis duration were further analyzed by multiple regression analysis.

Combining antioxidant astaxantin and cholinesterase inhibitor huperzine A boosts neuroprotection.

Oxidative stress is a pathophysiological condition resulting in neurotoxicity, which is possibly associated with neurodegenerative disorders. In this study, the antioxidative effects of the antioxidant astaxanthin (AXT) in combination with huperzine A (HupA), which is used as a cholinesterase inhibitor for the treatment of Alzheimer's disease, were investigated. PC12 cells were treated with either tert‑butyl hydroperoxide (TBHP), or with the toxic version of β‑amyloid, Aβ25‑35, to induce oxidative stress and neurotoxicity.

A Novel Delivery System of Cyclovirobuxine D for Brain Targeting: Angiopep-Conjugated Polysorbate 80-Coated Liposomes via Intranasal Administration.

The blood-brain barrier (BBB) poses a challenge for the treatment of cerebrovascular diseases including cerebral ischemia-reperfusion injury, Parkinson's syndrome, and cerebral tumors. Nanotechnology has developed as a promising strategy for drug delivery applications to the brain, especially liposomes (Lps) that have shown an intrinsic ability to cross the BBB. Angiopep-2 (ANG), a ligand for low-density lipoprotein receptor-related protein-1 (LRP1), is a good prospect for use as a targeting ligand for brain delivery using Lps.

A Novel Delivery Method of Cyclovirobuxine D for Brain-Targeting: Chitosan Coated Nanoparticles Loading Cyclovirobuxine D by Intranasal Administration.

The blood-brain barrier (BBB) restricts the delivery of most drugs to the brain. In our previous study, the feasibility of cyclovirobuxine D delivery to the brain by a non-invasive nasal route was evaluated. In this study, a suitable drug delivery system by way of intranasal administration was developed, which could improve brain targeting.

Attenuation of cyclosporine A induced nephrotoxicity by schisandrin B through suppression of oxidative stress, apoptosis and autophagy.

Cyclosporine A (CsA) is a potent immunosuppressive agent whose clinical usage is limited by nephrotoxicity. Schisandrin B (SchB), isolated from the fruit of Schisandra chinensis, is a natural compound with multiple pharmacological activities that has been shown to attenuate organ injury caused by CsA. Hence, the primary objective of the current study was to evaluate whether SchB has a cytoprotective effect on CsA-induced nephrotoxicity in human proximal tubular epithelial cell line (HK-2).