“Teaching old dogs new tricks”:targeting neural extracellular matrix for normal and pathological aging-related cognitive decline

Cognitive decline is a feature of normal and pathological aging. As the proportion of the global aged population continues to grow, it is imperative to understand the molecular and cellular substrates of cognitive aging for therapeutic discovery. This review focuses on the critical role of neural extracellular matrix in the regulation of neuroplasticity underlying learning and memory in another under-investigated "critical period": the aging process. The fascinating ideas of neural extracellular matrix forming a synaptic cradle in the tetrapartite synapse and possibly serving as a substrate for storage of very long-term memories will be introduced. We emphasize the distinct functional roles of diffusive neural extracellular matrix and perineuronal nets and the advantage of the coexistence of two structures for the adaptation to the ever-changing external and internal environments. Our study of striatal neural extracellular matrix supports the idea that chondroitin sulfate proteoglycan-associated extracellular matrix is restrictive on synaptic neuroplasticity, which plays important functional and pathogenic roles in early postnatal synaptic consolidation and aging-related cognitive decline. Therefore, the chondroitin sulfate proteoglycan-associated neural extracellular matrix can be targeted for normal and pathological aging. Future studies should focus on the cell-type specificity of neural extracellular matrix to identify the endogenous, druggable targets to restore juvenile neuroplasticity and confer a therapeutic benefit to neural circuits affected by aging.

Preliminary construction of evaluation indicator system for inpatients'nursing service needs in tertiary general hospital

Objectives:To construct a comprehensive evaluation indicator system for inpatients'nursing service needs in tertiary general hospital and to provide evidence for identifying and meeting the needs of inpatients'nursing services.Method:We used the Delphi method to conduct two rounds of expert consultations with 41 experts.Result:The indicator system consisting of 5 first-level indicators and 48 second-level indicators was preliminarily constructed.Conclusions:We formed an evaluation indicator system for inpatients'nursing service needs in tertiary general hospital and classified it into five categories:hospital environment,nursing attitude,nursing skills,information exchange,and emotional support.The indicator system is scientific and reliable.It can provide a basis for nursing staffs to identify and meet the needs of inpatients'care services.

Comparison of the degree of inflammatory stress response of laparoscopic myomectomy and abdominal surgery

Objective:To study the degree of inflammatory stress response of laparoscopic myomectomy and abdominal surgery.Methods: Patients who underwent myomectomy in Maternal and Child Health Hospital of Dayi County between June 2014 and October 2017 were retrospectively analyzed, and according to different operation methods, they were divided into the laparoscopy group and the control group who underwent laparoscopic surgery and open surgery respectively. The contents of inflammatory factors and stress mediators in serum as well as the expression of inflammatory molecules and stress molecules in peripheral blood were measured before surgery and 1 d after surgery.Results: Compared with those of same group before surgery, serum TNF-α, sICAM1, sVCAM1, sTREM1, GH, Cor, C-P, FT4 and CRP levels as well as peripheral blood JAK2, STAT3, Notch2, Hes1, Nrf2, HO-1, MPO and FOXP3 expression intensity of both groups of patients were significantly higher after surgery, and serum TNF-α, sICAM1, sVCAM1, sTREM1, GH, Cor, C-P, FT4 and CRP levels as well as peripheral blood JAK2, STAT3, Notch2, Hes1, Nrf2, HO-1, MPO and FOXP3 expression intensity of laparoscopy group of patients after surgery were lower than those of control group. Conclusion: Compared with abdominal surgery, laparoscopic myomectomy can reduce the degree of postoperative inflammatory stress response.

Comparison of the degree of inflammatory stress response of laparoscopic myomectomy and abdominal surgery

Objective: To study the degree of inflammatory stress response of laparoscopic myomectomy and abdominal surgery. Methods: Patients who underwent myomectomy in Maternal and Child Health Hospital of Dayi County between June 2014 and October 2017 were retrospectively analyzed, and according to different operation methods, they were divided into the laparoscopy group and the control group who underwent laparoscopic surgery and open surgery respectively. The contents of inflammatory factors and stress mediators in serum as well as the expression of inflammatory molecules and stress molecules in peripheral blood were measured before surgery and 1 d after surgery. Results: Compared with those of same group before surgery, serum TNF-α, sICAM1, sVCAM1, sTREM1, GH, Cor, C-P, FT4 and CRP levels as well as peripheral blood JAK2, STAT3, Notch2, Hes1, Nrf2, HO-1, MPO and FOXP3 expression intensity of both groups of patients were significantly higher after surgery, and serum TNF-α, sICAM1, sVCAM1, sTREM1, GH, Cor, C-P, FT4 and CRP levels as well as peripheral blood JAK2, STAT3, Notch2, Hes1, Nrf2, HO-1, MPO and FOXP3 expression intensity of laparoscopy group of patients after surgery were lower than those of control group. Conclusion: Compared with abdominal surgery, laparoscopic myomectomy can reduce the degree of postoperative inflammatory stress response.

Primary Small Intestinal Diffuse Large B-cell Lymphoma Masquerading as Crohn＆#39;s Disease： A Case Report

To the Editor：Early primary gastrointestinal non-Hodgkin＆#39;s lymphoma represents a diagnostic challenge and may be easily misdiagnosed as Crohn＆#39;s disease or intestinal tuberculosis.[1] Here,we describe a 58-year-old man who was admitted due to recurrent colic in the middle and upper abdomen with intermittent vomiting for l 0 months.The colic was paroxysmal lasting from a few minutes to several hours without obvious triggers.His medical history was otherwise unremarkable.In November 2013,gastrointestinal endoscopy revealed gastroenteritis,and abdominal computed tomography （CT） showed jejunal wall edema and thickening.His symptoms did not improve after 1-month treatment for suspected gastroenteritis.