Objective: To analyle prevalence and trend of substance abuse behaviors among adolescents in Guangdong province and to provide theoretical evidence for effective interventions. Methods: Data regarding smoking, drinking, drugs abuse from Adolescents Health Risk Behavior Survey in 2007, 2010, 2013 and 2016 were collected and comparatively analyzed. Results: The incidences of tried smoking(27.37%), current smoking(8.32%), passive smoking(45.52%), current drinking(27.97%) and drug using(0.75%) in 2016 were lower than that in 2007(32.40%, 10.81%, 52.69%, 31.97%, 1.35%), and the average annual decrease rate were 1.89%, 2.95%, 1.64%, 1.50%, 6.75%, respectively(χ2=152.73, 92.50, 313.92, 46.48, 46.64, P<0.01). During the past decate, the incidences of current smoking in rural adolescents(12.02%, 10.64%, 9.99%, 10.10%) were significantly higher than that in urban adolescents(8.88%, 8.52%, 8.17%, 6.56%)(χ2=54.46, 26.62, 25.23, 100.43, P<0.01); the incidences of current drinking in urban adolescents(33.57%, 30.37%, 35.76%, 30.46%) were significantly higher than that in rural adolescents(30.97%, 28.48%, 28.47%, 25.32%)(χ2=16.71, 10.13, 153.47, 81.76, P<0.01); the incidence of current drinking was the highest among college students in each monitoring year(47.71%, 41.76%, 42.36%, 37.77%)(χ2=583.37, 681.25, 610.04, 729.02, P<0.01); the incidence of current smoking was the highest among vocational school students in each monitoring year(16.36%, 17.00%, 14.90%, 16.71%)(χ2=256.45, 515.61, 339.63, 742.52, P<0.01); In addition to the incidence of drug abuse was the highest among college students in 2010(2.02%), vocational school students were the highest in other years(χ2=66.92, 34.38, 23.08, 20.55, P<0.01). Conclusion Smoking and drug abuse among adolescents in Guangdong showed a declining trend by years, as well as the prevalence of drinking behavior. Strengthened intervention should be targeted on smoking behavior among rural students, drinking behavior among urban students, and smoking behavior and drug abuse among vocational school students.

Non-small cell lung cancer(NSCLC)is one of the malignant tumors with high morbidity and mortality worldwide.Ferroptosis is a new type of programmed cell death caused by abnormal accumulation of iron-dependent reactive oxygen species(ROS)leading to lipid peroxidation.It involves the balance between iron metabolism,lipid metabolism,oxy-gen free radical reaction and lipid peroxidation.Recent studies have found that ferroptosis is closely related to the occurrence and development of NSCLC.Due to the emergence of chemotherapy resistance and radiotherapy resistance in the treatment of NSCLC,there is an urgent need to develop new effective drugs and treatment strategies.Traditional Chinese medicine has unique advantages in the prevention and treatment of NSCLC due to its multi-targets and minimal side effects.In this review,we summarize the mechanism of ferroptosis in NSCLC,and discuss the research status of active ingredients of traditional Chinese medicine,single-herb traditional Chinese medicine and Chinese herbal compounds in the intervention of NSCLC through ferroptosis,in order to provide a new theoretical basis for the research of ferroptosis pathway and the prevention and treatment of NSCLC by targeted ferroptosis of traditional Chinese medicine.

Objective:To explore the effect of emotional nursing in improving the negative emotions and compliance of patients with intracranial tumors.Methods:From March 2014 to March 2020, 90 patients with intracranial tumors admitted to Zhoushan Hospital in Zhejiang Province were selected as the research object. A total of 45 patients with intracranial tumors from March 2014 to February 2017 were set as the control group, and 45 patients with intracranial tumors from March 2017 to March 2020 were set as the observation group. The control group carried out routine nursing, and the observation group conducted emotional nursing on this basis. The negative emotions assessed by Self-rating Depression Scale (SDS) and Self-rating Anxiety Scale (SAS) , compliance and comfort scores of the two groups of patients were compared.Results:In the observation group, the SDS and SAS scores of patients were lower than those in the control group, the comfort scores were higher than those in the control group, and the compliance was higher than that of the control group, and the differences were statistically significant ( P<0.05) . Conclusions:Emotional nursing can effectively improve the negative emotions and compliance of patients with intracranial tumors, and increase their comfort during hospitalization.

Objective This study investigated the protective effects of Corni Fructus ethanol extract on β-amyloid protein 25-35 (Aβ25-35)-induced Alzheimer's disease (AD) mice by regulating histone lysine-specific demethylase 1 (LSD1) / postsynaptic density protein 95 (PSD95) on synapses and neuroinflammation. Methods Specifically, according to the body weight, 40 C57BL/6N mice were randomized into four groups: the sham operation group, the model group, the low-dose (0.1mg/g) and the high-dose (0.3 mg/g) Corni Fructus ethanol extract groups. Aβ25-35 was injected into the hippocampus of mice in three groups except for the sham operation group to established AD model. All mice were orally administered with either Corni Fructus ethanol extract or vehicle by gavage for 7 days before molding and continued 5 days after surgery for a total of 60 days. Morris water maze, Y maze and open field tests were performed to evaluate the recognition memory and space exploration ability of mice. The expression of LSD1, PSD95, synaptophysin (SYN), interleukin-1β (IL-1β), tumor necrosis factor-α(TNF-α) and H3K9me2 level were measured by Western blotting. Chromatin immunoprecipitation (CHIP) combined with qPCR was used to detect H3K9me2 modification of PSD95 promoter region and mRNA levels of PSD95. The correlation between the expression of H3K9me2 and PSD95 and the expression of IBA1 in the hippocampus were detected by immunofluorescence assay.Results The result showed that Corni Fructus ethanol extract significantly reversed Aβ25-35-induced learning and memory impairment in AD mice. Compared with the model group, Corni Fructus ethanol extract demonstrated shorter escape latency, increased number and time of autonomous activities and the rate of autonomous alternation. Moreover, it increased the expression of LSD1 in hippocampus of AD mice(P<0.05), and reduced H3K9me2 modification level in the promoter region of PSD95 gene, and then promoted the mRNA transcription and protein expression of PSD95. Immunofluorescence staining indicated the reduction of H3K9me2 modification level in hippocampus was accompanied by the enhancement of PSD95 expression. Corni Fructus ethanol extract could also inhibit the activation of microglia and reduce the expression of proinflammatory factors IL-1β and TNF-α.Conclusion Corni Fructus ethanol extract may regulate PSD95 gene transcription by up-regulating the expression of LSD1 and reducing the H3K9me2 modification level in its promoter region, thereby increasing the expression of PSD95, a key protein in synaptic plasticity regulation, which alleviate neuroinflammatory response, improve learning and memory dysfunction in AD model mice, and thus play a protective role in Aβ25-35-induced nerve damage.

Progesterone is currently the first-line drug for clinical treatment and prevention of threatened abortion and habitual abortion. However， due to its special chemical structure， its solubility is low， which limits its clinical application. Therefore， the new technology and new dosage form of progesterone solubilization preparation is an important direction of its research and development. In this paper， the research progress of progesterone solubilization preparation technology in recent years is reviewed. It is found that the water solubility of progesterone can be enhanced by solid dispersion technology， inclusion technology， micronization， nanocrystallization （ including nanosuspensions， polymer micelles， nanoparticles， etc. ）， liposome technology， self- emulsification， cocrystal technology， and 3D printing. Eight technologies are used to increase the solubility of progesterone， improve its bioavailability and reduce its toxic and side effects， to serve the clinic better.

OBJECTIVE To prepare progesterone-2-chloro-4-nitroaniline cocrystal （CNA） so as to improve the solubility of progesterone and primarily evaluate the safety of the progesterone cocrystal in vivo. METHODS Using progesterone as the main body and CNA as the ligand， progesterone-CNA cocrystal was prepared with solvent evaporation method. The cocrystal was characterized by X-ray single crystal diffraction， X-ray powder diffraction （XRPD）， differential scanning calorimetry （DSC） and Fourier transform infrared spectroscopy （IR）. The dissolution rate of cocrystal was compared with those of progesterone and physical mixture. Forty-eight female KM mice were randomly divided into normal group （phosphate buffer containing 0.1% dimethyl sulfoxide）， progesterone group （16 mg/kg）， CNA group （9 mg/kg）， progesterone-CNA cocrystal low-dose， medium- dose and high-dose groups （6， 12.5， 25 mg/kg）， with 8 mice in each group. They were given relevant medicine/solvent intramuscularly， once a day， for consecutive 14 d. The safety of cocrystal was evaluated primarily by determining/observing the changes in body weight， organ index， tissue morphology， blood routine indicators， and liver and kidney function indicators. RESULTS The new crystal structure in the X-ray single crystal diffraction results， the new characteristic peak in the XRPD pattern， the change of melting point in the DSC results， and the change of the characteristic peak position in the range of 3 500- 2 750 cm－1 and 1 700-1 250 cm－1 in the infrared spectrum all Δ 基金项目国家重点研发计划项目（No.2022YFC3502100） indicated that progesterone-CNA cocrystal was successfully ＊第一作者 硕士研究生 。研究方向 ：药物制备技术与工艺 。 prepared， and the dissolution rate of cocrystal was more than E-mail：SWB_1221@163.com # 通信作者教授，硕士生导师，博士。研究方向：药物制备技术与 twice that of the progesterone raw material drug. The results of 工艺。E-mail：wuxx-415@126.com in vivo safety experiments showed that the mortality rate of all 中国药房 2023年第34卷第13期 China Pharmacy 2023 Vol. 34 No. 13 · 1567 · groups was zero. Compared with normal group， uterine indexes of mice in progesterone group and progesterone-CNA cocrystal groups were significantly increased （P＞0.05）， and endometrium was also thickened； there was no statistical difference in the changes of body mass， liver and kidney function， liver index， kidney index， the number of leukocyte， lymphocyte and neutrophil in routine blood test among those groups （P＞0.05）， and the morphology of liver and kidney tissue has also no significant difference. However， the number of plasma red blood cells in the progesterone group decreased significantly （P＜0.05）， and there was no statistical significance in the number difference of red blood cells among progesterone-CNA cocrystal groups （P＞0.05）. CONCLUSIONS The progesterone-CNA cocrystal is successfully prepared with good safety in vivo， which significantly improve the solubility of progesterone.

OBJECTIVE：To study the prot ective effects of crocin （CR）against triptolide （TP）-induced visceral organ injury in mice，and to provide reference for the studying TP compatibility and detoxification. METHODS ：Fifty mice were randomly divided into normal group ，TP low-dose and high-dose groups （i.e. TP-L group ，TP-H group ，with 300，600 μg/kg），TP low-dose and high dose combined with CR groups （i.e. TP-L+CR group ，TP-H+CR group ，with 300 μg/kg TP+100 mg/kg CR ，600 μg/kg TP+ 100 mg/kg CR ），with 10 mice in each group. Except for normal group ，other groups were given relevant medicine intragastrically ， once a day ，for consecutive 7 d. The body weight of mice was weighted every day ，and their death was recorded. After last administration，the mice were sacrificed ，and the heart ，liver，kidney and testis were taken ，and the organ index was calculated ； serum levels of ALT ，AST，BUN and Scr ，the activity of T-SOD and the contents of MDA were all determined. The pathological changes of heart ，liver，kidney and testis were observed ；mRNA expression of Bcl- 2，Bax and caspase- 3 in liver tissue were determined. RESULTS ：Three，five，two and three mice in TP-L group ，TP-H group ，TP-L+CR group and TP-H+CR group died respectively，and the survival rates were 70％，50％，80％ and 70％，respectively. Compared with normal group ，the body weight （7th day of experiment ），heart index ，liver index ，kidney index （except for TP-L group ），testicular index ，T-SOD activity and mRNA expression of Bcl- 2 in liver tissue ，serum levels of ALT （except for TP-L group ），AST（except for TP-L group ），BUN and Scr，MDA content and mRNA expression of Bax ，mRNA expression of caspase- 3 in liver tissue were increased significantly （P＜ 0.05 or P＜0.01）. There were obvious pathological changes in heart ，liver，kidney and testis tissue. Compared with the same dose of TP alone group ，the above indexes of TP combined with CR group were improved in varying degrees. Except for the renal index and serum ALT level of TP-L+CR group ，there was statistical significance for all indexes （P＜0.05 or P＜0.01）；the pathological injuries of heart ，liver，kidney and testis were significantly improved. CONCLUSIONS ：CR can relieve the damage of heart ， liver，kidney and testis induced by TP ，which may be related to the antioxidant stress of CR.

[Abstract] Objective: To explore the mRNA molecular targets for diagnosis of hepatic carcionoma and to investigate their functional roles in proliferation and cell cycle of hepatic cancer cells. Methods: Based on the statistical analysis of miRNA expression data from 377 hepatic carcionoma samples and 37 adjacent non-cancerous samples in TCGAdatabase, a group of 33 differentially expressed miRNAs were identified.A further screen of these differentially expressed miRNAs was performed using the receiver operating characteristic curve (ROC curve) and Kaplan-Meier survival analysis; and with referring to the current publications, miR-451 was screened as the study subject. HepG2 cells were transfected with pLVX-shRNA2-miR-451 to over-express miR-451. The effect of miR-451 over-expression on the proliferation of HepG2 cell was determined by CCK-8 assay; while the effect on cell cycles was detected by flow cytometry. Results: The expression of miR-451 in the adjacent non-cancerous tissues was significantly lower than that in cancer tissues ([473.40±390.24] vs [1 990.47±2 118.04], P<0.05). MiR-451 could be used as an early diagnostic biomarker of hepatic carcionoma, with a high ROC value of 0.91 (sensitivity 0.89, specificity 0.87). The results of in vitro experiments showed that the proliferation of HepG2 cells was significantly decreased after miR-451 over-expression (48 h: [0.69±0.04] vs [1.08±0.05]; 72 h: [0.76±0.07] vs [1.52± 0.02]; all P<0.01), and a large number of cells were blocked in S phase(P<0.05). Conclusion: miR-451 has the potential to be used as a biomarker for hepatic carcionoma diagnosis and prognosis; moreover, it also exhibits the inhibitory effect on proliferation of hepatic cancer cells.