The Dual Role of Non-coding RNAs in the Development of Periodontitis.

This review aims to sum up how Non-coding RNAs (ncRNAs) regulate the development of periodontitis and provides a new perspective for understanding the pathogenesis of periodontitis. We explored the ncRNA's dual role in the development of periodontitis by summarizing evidence from previous and studies as well as clinical samples. In our review, the downregulation of 18 miRNAs, 22 lncRNAs and 10 circRNAs demonstrates protective roles in periodontitis.

Perspectives of nursing directors on emergency nurse deployment during the pandemic of COVID-19: A nationwide cross-sectional survey in mainland China.

Aims: The aim of this study is to investigate the situation and perceptions of nursing directors about emergency nursing staff deployment in designated hospitals during the pandemic of COVID-19 in mainland China.

Background: The pandemic of COVID-19 has significantly depleted health care resources, leading to increased burden of nursing care and staffing and exacerbating the crisis in health care facilities. Currently, how to effectively plan and schedule nursing staffing in the pandemic still remains unknown.

[Mental status of surgical medical staff who treated or did not treat the victims in Wenchuan earthquake].

Objective: To compare and analyze the mental status of medical staff between Orthopedics Department who treated the victims in the earthquake and other surgical departments who did not treat the victims in the earthquake, and to provide evidence for psychological prevention and intervention in the earthquake aids.

Methods: Cross-sectional study was used to choose staff in the Orthopedics Department who treated the victims and other surgical departments who did not treat victims in the earthquake as eligible subject with convenient sampling. The research tool is Symptom Checklist-90.

[Determination of lead with GFAAS using online flow injection].

A cheap, rapid and sensitive method for the determination of trace amount of lead in water samples by graphite furnace absorption spectrometry coupled with online flow injection preconcentration with ammonium pyrrolidine dithiocarboxylate chelating cellulose (CC-APDC) was developed. There were six steps in the preconcentration of flow injection: first, 0.15 mL nitric acid was used for a complete elution, which exceeded the volume of the graphite tube, so the 40 mL solution was removed before eluting.

[Sorption rate equation of 2-mercaptopbenzimidazole chelating cellulose for some heavy metal ions].

Chelating cellulose is of simple preparation, excellent nature and low cost. MBM chelating cellulose (CC-MBM) was prepared with chelating reagent (2-mercaptobenzimidazole) grafted on cotton by indirect etherification method. The approach for separating and preconcentrating trace of Pb, Cd, Cu and Ni has advantages of high exchanging speed, high preconcentration multiple, high selectivity and easy elution.