Retinoblastoma (RB) therapy has evolved over decades.In the 1970s, enucleation was important for improving life prognosis.In the 1980s, external beam radiotherapy (EBRT) was popular.In the 1990s, systemic intravenous chemotherapy (IVC) was introduced and currently remains prevalent worldwide for intraocular RB control as well as prevention of systemic metastasis.However, RB seeds in vitreous and subretinal space are still the major obstacles for successful treatments.Advanced ophthalmic imaging technology promotes thorough and detailed description and observation of RB seeds.In the 2000s, interests in periocular chemotherapy (POC), intra-arterial chemotherapy (IAC) and intravitreous chemotherapy (IVitC) have been explored to overcome the low drug concentration around the seeds and to reduce the systemic side effects.This leads us into a new era of target local chemotherapy of RB.How to make the treatment decision based on biological behavior of RB seeds is a major task for us now.

Retinoblastoma (RB) and choroidal malignant melanoma are the most common primary intraocular malignancy in children and adults, respectively.Due to the advance in the diagnosis and treatment of intraocular tumors, the survival rate and survival time of the patients are significantly improved.The goal of the therapy for the patients of intraocular malignant tumors has gradually changed from simply saving life to trying to preserve eyeball on the basis of saving life.Although there are various treatment options for intraocular malignant tumors, eye salvage is still an great challenge for the patients with refractory tumors.In recent years, vitrectomy has been used again by some doctors to the treatment of refractory RB and choroidal malignant melanoma, which undoubtedly gives the hope of eye salvage to the patients with intraocular malignant tumors.However, this therapy arouse controversy because serious intraoperative or postoperative complications occurred in some patients.Ophthalmologists should select suitable indications for this surgery cautiously, perform the operation carefully, combine other chemotherapy and/or radiotherapy and local treatment and close follow-up if necessary.

Objective:To investigate college students' awareness of dry eye and the prevalence of symptomatic dry eye disease.Methods:From October 2019 to January 2020, self-designed questionnaires including basic information, daily habits, dry eye cognition, and the Ocular Surface Disease Index (OSDI) scale, were distributed to students at Sichuan University. Univariate analysis and multivariate analysis were performed using SPSS 25.0 software.Results:A total of 1 013 valid questionnaires were collected. The awareness rate of dry eye among college students was 54.9% (556/1 013). The average OSDI scale score of college students was 14.02 ± 12.35 points. A total of 501 (49.5%) college students were judged to develop symptomatic dry eye disease by OSDI scale screening, of which 301 (29.7%) college students had mild dry eye disease, 124 (12.2%) college students had moderate dry eye disease and 76 (7.5%) college students had severe dry eye disease. Binary logistic regression analysis showed that the number of adverse habits associated with dry eyes ( P = 0.003), sleep quality at night ( P < 0.001), use of over-the-counter eye drops ( P < 0.001), and daily time spent in reading video terminals ( P < 0.001) were the influential factors of symptomatic dry eye disease screened by OSDI. Conclusion:College Students' awareness of dry eye needs to be improved. The prevalence of symptomatic dry eye disease in college students judged by the OSDI scale is high.

Objective To explore the effect of sorafenib on HeLa cell proliferation by inducing cell apoptosis and autophagy and its impact on drug resistance.Methods The drug-resistant cell strains were constructed through in-termittent induction method,with concentrations of 0,2.5,5.0,7.5,10.0,15.0,20.0 μmol/L.HeLa cells were incubated with increasing concentrations of sorafenib with each concentration for 1 week.The drug-resistant cell strains with stable passages were collected.MTT assay was used to detect the effect of sorafenib on cell prolifer-ation.Cell cycle distribution was analyzed by flow cytometry.The change in the expression of drug-resistant and ap-optotic genes in the parents and drug-resistant cell strains under different drug concentrations was examined by semi-quantitative PCR.The changes of apoptotic related marker proteins LC3-Ⅰ and LC3-Ⅱ were detected by Westernblot.Results Stable drug-resistant strains were successfully obtained;Drug-treated cells were more blocked in the G1 phase.In drug-resistant cells,the expression of apoptosis suppressor gene Bcl-2 was significantly decreased and the apoptotic gene Bax as well as the drug-resistant genes were all significantly increased(P＜0.05).The LC3-Ⅱ/LC3-Ⅰ ratio of drug-resistant cells was significantly higher than that of parent cells(P＜0.05).Conclusions Sorafenib may block the cell cycle,suppress malignant cell proliferation and promote autophage.On one hand,autophagy participates in the development of cell drug resistance and promotes cell survival.On the other hand,drug-induced autophagy may activate some of apoptotic signaling pathway in drug-resistant cells and promote the reversal of cell drug resistance.

Objective:To evaluate the development of fetal cerebral sulci and gyrus and the blood perfusion in pregnant women with gestational diabetes mellitus(GDM) by ultrasound.Methods:A total of 1 540 pregnant women with 28-34 weeks of pregnancy who underwent systematic screening in Henan Provincial People′s Hospital from January 2022 to October 2022 were prospectively selected, 100 pregnant women with GDM were selected as the GDM group. According to the effect of blood glucose control, the GDM group was divided into 2 groups: the satisfied control group (GDM group 1), and the dissatisfied control group (GDM group 2), with 50 cases in each group. At the same period, 50 healthy pregnant women at 28-34 weeks of gestation were enrolled as the control group. The differences of the sylvian fissure, parietooccipital sulci, calcarine sulci and cinguli sulci among the 3 groups were statistically analyzed. And the correlations between the deep of the brain cerebral sulci and gyrus and controlled blood glucose levels were evaluated. The umbilical artery pulsation index(UAPI), middle cerebral artery pulsation index(MCAPI) and ductus venosus pulsation index(DVPI) among the 3 groups were compared, and the differences in fetal blood perfusion among the 3 groups were evaluated.Results:There were no significant differences in the depths of the sylvian fissure, parietooccipital sulci, calcarine sulci and cinguli sulci between the control group and the GDM group 1 (all P>0.05), and they were larger than those of the GDM group 2 (all P<0.05). The depths of lateral fissure, parieto-occipital sulcus, cingulate sulcus and calcarine sulcus were negatively correlated with fasting blood glucose, 1 h and 2 h postprandial blood glucose (all P<0.05). There were no significant differences in MCAPI, UAPI and DVPI between the control group and GDM1 group (all P>0.05). The MCAPI in GDM 2 group was lower than that in the control group and GDM 1 group, and the UAPI and DVPI values were higher than those in the control group and GDM1 group(all P<0.05). Conclusions:The maturity of fetal cerebral sulci and gyrus in GDM pregnant women is related to the blood glucose control of pregnant women. The change of blood perfusion caused by persistent hyperglycemia in pregnant women and intrauterine hypoxia may cause the development retardation of cerebral sulci and gyrus.