RETRACTED: Development of curcumin-loaded silk fibroin nanoparticles as drug delivery vehicle for the treatment of ischemic stroke for patients in nursing care in hospitals

Effects of Systemic Rehabilitation Nursing Combined with WeChat Publicity and Education on the Early Cognitive Function and Living Quality of the Patients with Cerebral Arterial Thrombosis

Objective

To investigate the effects of systemic rehabilitation nursing combined with WeChat publicity and education on the early cognitive function and living quality of the patients with cerebral arterial thrombosis.

Methods

Ninety-two patients with cerebral arterial thrombosis treated in our hospital (January 2019–January 2021) were selected as the research objects and equably divided into control group and study group according to their nursing model, with 46 patients in each group. The control group received routine nursing, while the study group received systemic rehabilitation nursing combined with WeChat publicity and education based on the routine nursing. The early cognitive functions, living quality, and other observation indexes of the two groups after nursing were compared, and the intervention effects were evaluated.

Results

No statistical difference in the general data was observed between the two groups (P > 0.05). The NIHSS (National Institutes of Health Stroke Scale) scores, Fugl-Meyer scores, and MoCA (Montreal Cognitive Assessment) scores of the two groups after nursing were all better than those before nursing, and the NIHSS score, Fugl-Meyer score, and MoCA score of the study group after nursing were better than those of the control group (P < 0.05). Compared with the control group, the study group had a remarkably higher excellent and good rate of daily living ability after nursing (P < 0.05) and prominently higher SIS (Sensory Index Score) after nursing (P < 0.05). The SIS included the scores of emotion, strength, ADL (activities of daily living), memory and thinking, hand function, communication and participation as well as the total score.

Conclusion

The systemic rehabilitation nursing combined with WeChat publicity and education can effectively reduce the degree of neurological deficit of the patients with cerebral arterial thrombosis, improve their early cognitive function and motor function, and increase their daily living ability and prognostic living quality.

A comprehensive review of the therapeutic potential of curcumin nanoformulations

Today, due to the prevalence of various diseases such as the novel coronavirus (SARS-CoV-2), diabetes, central nervous system diseases, cancer, cardiovascular disorders, and so on, extensive studies have been conducted on therapeutic properties of natural and synthetic agents. A literature review on herbal medicine and commercial products in the global market showed that curcumin (Cur) has many therapeutic benefits compared to other natural ingredients. Despite the unique properties of Cur, its use in clinical trials is very limited. The poor biopharmaceutical properties of Cur such as short half-life in plasma, low bioavailability, poor absorption, rapid metabolism, very low solubility (at acidic and physiological pH), and the chemical instability in body fluids are major concerns associated with the clinical applications of Cur. Recently, nanoformulations are emerging as approaches to develop and improve the therapeutic efficacy of various drugs. Many studies have shown that Cur nanoformulations have tremendous therapeutic potential against various diseases such as SARS-CoV-2, cancer, inflammatory, osteoporosis, and so on. These nanoformulations can inhibit many diseases through several cellular and molecular mechanisms. However, successful long-term clinical results are required to confirm their safety and clinical efficacy. The present review aims to update and explain the therapeutic potential of Cur nanoformulations.

Dissolution and processing of silk fibroin for materials science

In recent decades, silk fibroin (SF) from silkworm Bombyx mori has been extensively researched and applied in several fields, including: cosmetics, biomedicine and biomaterials. The dissolution and regeneration of SF fibers is the key and prerequisite step for the application of silk protein-based materials. Various solvents and dissolving systems have been reported to dissolve SF fibers. However, the dissolution process directly affects the characteristics of SF and particularly impacts the mechanical properties of the resulting silk biomaterials in subsequent processing. The purpose of this review is to summarize the common solvents, the dissolution methods for silk protein, the properties of the resulting SF protein. The suitable use of SF dissolved in the corresponding solvent was also briefly introduced. Recent applications of SF in various biomaterials are also discussed.

Cytoprotective effects of antioxidant supplementation on mesenchymal stem cell therapy

Mesenchymal stem cells (MSCs) are earmarked as perfect candidates for cell therapy and tissue engineering due to their capacity to differentiate into different cell types. However, their potential for application in regenerative medicine declines when the levels of the reactive oxygen and nitrogen species (RONS) increase from the physiological levels, a phenomenon which is at least inevitable in ex vivo cultures and air-exposed damaged tissues. Increased levels of RONS can alter the patterns of osteogenic and adipogenic differentiation and inhibit proliferation, as well. Besides, oxidative stress enhances senescence and cell death, thus lowering the success rates of the MSC engraftment. Hence, in this review, we have selected some representatives of antioxidants and newly emerged nano antioxidants in three main categories, including chemical compounds, biometabolites, and protein precursors/proteins, which are proved to be effective in the treatment of MSCs. We will focus on how antioxidants can be applied to optimize the clinical usage of the MSCs and their associated signaling pathways. We have also reviewed several paralleled properties of some antioxidants and nano antioxidants which can be simultaneously used in real-time imaging, scaffolding techniques, and other applications in addition to their primary antioxidative function.