Integument colour change: Tracking delayed growth of Oppia nitens as a sub-lethal indicator of soil toxicity.

Growth is an important toxicity end-point in ecotoxicology but is rarely used in soil ecotoxicological studies. Here, we assessed the growth change of Oppia nitens when exposed to reference and heavy metal toxicants. To assess mite growth, we developed an image analysis methodology to measure colour spectrum changes of the mite integument at the final developmental stage, as a proxy for growth change. We linked the values of red, green, blue, key-black, and light colour of mites to different growth stages. Based on this concept, we assessed the growth change of mites exposed to cadmium, copper, zinc, lead, boric acid, or phenanthrene at sublethal concentrations in LUFA 2.2 soil for 14 days. Sublethal effects were detected after 7 days of exposure. The growth of O. nitens was more sensitive than survival and reproduction when exposed to copper (EC50growth = 1360 mg/kg compared to EC50reproduction = 2896 mg/kg). Mite growth sensitivity was within the same order of magnitude to mite reproduction when exposed to zinc (EC50growth = 1785; EC50reproduction = 1562 mg/kg). At least 25% of sublethal effects of boric acid and phenanthrene were detected in the mites but growth was not impacted when O. nitens were exposed to lead. Consistent with previous studies, cadmium was the most toxic metal to O. nitens. The mite growth pattern was comparable to mite survival and reproduction from previous studies. Mite growth is a sensitive toxicity endpoint, ecologically relevant, fast, easy to detect, and can be assessed in a non-invasive fashion, thereby complimenting existing O. nitens testing protocols.

Relationship between online partner seeking sexual behavior and sensation seeking risk behaviors among college students / 中国学校卫生

Objective@#To investigate relationship between online partner seeking sexual behavior and sensation seeking risk behaviors among college students, and to provide suggestions on college sex education.@*Methods@#Using convenience sampling, a self administered questionnair survey was administered among 1 923 students in one college in Chongqing between September and October in 2021, regarding online partner seeking sexual behavior,sensation seeking and risk behaviors.@*Results@#About 26.7% of participants reported having sexual behavior, and 12.3% students having online partner seeking sexual behavior. There were no significant sex differences in online partner seeking sexual behavior ( χ 2=1.25, P >0.05); partner seeking sexual behavior varied by grade, gambling,alcohol drinking and internet addiction tendency( χ 2=9.40, 3.29, 19.63 and 3.66, P <0.05), which was higer among college students in grade one(9.1%), no gambling habit(12.0%), drinking habit(8.4%), and having no inclination to Internet addiction (11.8%) compared with those of grade 2 and 3(14.4%, 13.1%), gambling habit(19.7%), no drinking habit( 15.1 %) and having inclination to Internet addiction (16.6%). The results of multivariate Logistic regression showed that alcohol drinking ( OR =0.45，95% CI =0.33-0.62) was negatively associated with online partner seeking sexual behavior, sensation seeking ( OR =1.08，95% CI =1.03-1.13) and gambling ( OR =2.15，95% CI =1.19-3.88) were positively associated with online partner seeking sexual behavior of college students( P <0.05).@*Conclusion@#Colleges should pay attention to the occurrence of online partner seeking sexual behavior, provide guidance for recognition of adverse consequences of sensation seeking behavior, and to avoid the clustering of online partner seeking sexual behavior with gambling behaviors.

SNHG20 knockdown suppresses proliferation, migration and invasion, and promotes apoptosis in non-small cell lung cancer through acting as a miR-154 sponge.

Long noncoding RNAs (LncRNAs) play critical roles in the development and progression of cancers. However, little is known about the function and mechanism of lncRNAs in non-small cell lung cancer (NSCLC). In this study, we investigated the expression and functional role of lncRNA small nucleolar RNA host gene 20 (SNHG20) as well as its underlying mechanism in NSCLC. Our results showed that SNHG20 was significantly up-regulated in NSCLC tissues and cells. High SNHG20 expression was implicated with poor prognosis in NSCLC patients. Moreover, SNHG20 knockdown suppressed proliferation, migration and invasion, and induced apoptosis in NSCLC cells. Furthermore, SNHG20 could function as a competing endogenous RNA (ceRNA) to elevate ZEB2 and RUNX2 expression by sponging miR-154. Rescue assays revealed that miR-154 inhibition could reverse the inhibitory effect of SNHG20 silence on proliferation, migration and invasion in NSCLC cells. More importantly, SNHG20 knockdown suppressed tumor growth in NSCLC in vivo through suppressing miR-154 and elevating ZEB2 and RUNX2 expression. In summary, knockdown of lncRNA SNHG20 suppressed proliferation, migration and invasion, and promotes apoptosis through up-regulating ZEB2 and RUNX2 expression by sponging miR-154 in NSCLC, providing a promising therapeutic target for NSCLC patients.

Application of family centered cognitive intervention in neonatal nursing / 中国基层医药

Objective To explore the role of family centered cognitive intervention in neonatal nursing. Methods According to the random number table method,100 newborns were randomly divided into observation group and control group,50 cases in each group. The two groups received routine health education,and the observation group received the family centered cognitive intervention. After the intervention, the neonatal physical development status (body weight,height,head circumference) and neonatal disease status of the two groups were analyzed. The active muscle tension, passive muscle tension, primitive reflexes, behavior ability, general evaluation and neonatal behavioral neurological assessment score ( NBNA score ) were evaluated and analyzed. Results The body weight [(4753.88±434.59)g],length[(55.16±1.17)cm],headcircumference[(37.34±0.51)cm]after1month discharge of the observation group were better than those of the control group[(4295. 78 ± 344. 63) g,(52. 25 ± 0.58)cm,(35.67 ±0.21)cm],the differences between the two groups were statistically significant(t =2.564, 6. 235,8. 679,all P<0. 05). The incidence rate of born disease of the observation group was 14. 00%,which of the control group was 32. 00%,there was statistically significant difference between the two groups(χ2 =4. 574,P <0. 01). The active muscle tension,passive muscle tension,behavior ability,original reflection,the general evaluation and NBNA scores of the observation group were significantly higher than those of the control group, the differences were statistically significant(all P<0. 01). Conclusion Family centered intervention can significantly improve the growth status of newborn infants,reduce the incidence of the disease,it is beneficial to improve the patients' neurological behavior,it is worthy of wide application.

Application of family centered cognitive intervention in neonatal nursing / 中国基层医药

Objective To explore the role of family centered cognitive intervention in neonatal nursing. Methods According to the random number table method,100 newborns were randomly divided into observation group and control group,50 cases in each group. The two groups received routine health education,and the observation group received the family centered cognitive intervention. After the intervention, the neonatal physical development status (body weight,height,head circumference) and neonatal disease status of the two groups were analyzed. The active muscle tension, passive muscle tension, primitive reflexes, behavior ability, general evaluation and neonatal behavioral neurological assessment score ( NBNA score ) were evaluated and analyzed. Results The body weight [(4753.88±434.59)g],length[(55.16±1.17)cm],headcircumference[(37.34±0.51)cm]after1month discharge of the observation group were better than those of the control group[(4295. 78 ± 344. 63) g,(52. 25 ± 0.58)cm,(35.67 ±0.21)cm],the differences between the two groups were statistically significant(t =2.564, 6. 235,8. 679,all P<0. 05). The incidence rate of born disease of the observation group was 14. 00%,which of the control group was 32. 00%,there was statistically significant difference between the two groups(χ2 =4. 574,P <0. 01). The active muscle tension,passive muscle tension,behavior ability,original reflection,the general evaluation and NBNA scores of the observation group were significantly higher than those of the control group, the differences were statistically significant(all P<0. 01). Conclusion Family centered intervention can significantly improve the growth status of newborn infants,reduce the incidence of the disease,it is beneficial to improve the patients' neurological behavior,it is worthy of wide application.