Now the layer-by-layer self-assembling (LbL) technique has become an attention-getting reparative methodology for ultrathin film formation. Many scientists in different academic areas including bioengieering, medical science, drug controlled release, optoelectronics dive into this technology. Among of them, carriers with structures which can be flexibly controlled are more useful since functional structure units can be assembled in layer-by-layer fashion, which is simplicity, chemical mildness, concealment, can achieve targeted drug delivery and so on. In this review, we have discussed the advantage, development, influential factors and applications of LbL. We have focused on reviewing the applications and perspective of nanoparticles, microgels and capsules were both fabricated via the LbL assembling at drug delivery.

Objective To observe the differences of retinal vessel oxygen saturation between diabetic and healthy subjects.Methods Seventy-one diabetic patients and 91 healthy persons were included diabetes group and control group respectively.Oxygen saturation was measured in retinal blood vessels in two groups using retinal Oxymap.The oxygen saturation in retinal arteries and veins about 1.5-3.0 disc-diameter from center of optic disc was analyzed by instrumental software.Results Among 71 cases of diabetics,there was no significant difference in retinal oxygen saturation between male and female,among different ages and duration of disorder (all P ＞ 0.05).The retinal average arteriolar oxygen saturation in diabetes group was higher than that in control group (P =0.00).The diabetes group had the higher arteriolar oxygen saturation in all the quadrants,while only the superior temporal and inferior temporal showed significant difference statistically (all P ＜0.05).The retinal average venous oxygen saturation in diabetes group showed an upward trend although with no significance (P ＞0.05).Venous oxygen saturation in the diabetes group were higher in retinal superior temporal and inferior temporal quadrant and lower in retinal inferior nasal quadrant,there were significant statistical differences (all P ＜ 0.05).The retinal arterio-venous oxygen saturation differences in diabetes group was higher than that in control group,there was significant statistical difference (P =0.00).Conclusion There is significant difference in retinal vessel oxygen saturation between diabetics and healthy subjects.There are different degrees of changes in retinal oxygen saturation among different quadrants,indicating uneven distribution of retinal oxygen metabolism in each quadrant.

To study the expression of herpes simplex virus type 2 latency-associated transcript (LAT) open reading frame 1 (ORF1) and its anti-apoptosis function induced by actinomycin D in Vero cells. The recombinant plasmid pEGFP-ORF1 was constructed and transfected into Vero cells, and the expression of ORF1 was identified by RT-PCR. The changes of Vero cells morphology induced by actinomycin D were observed by fluorescence microscopy, Hochest33258 fluorescence staining. Cells viability was evaluated by MTT assay and cells apoptosis rate was detected by flow cytometry. Double digestion and sequencing confirmed the pEGFP-ORF1 was constructed successfully, RT-PCR showed that the target gene was highly expressed in Vero cells. Hochest33258 staining reaveals that Vero cells transfected with pEGFP-ORF1 and induced apoptosis by actinomycin D had no changes in morphology. MTT assay showed that the viabilities of Vero cells transfected with recombinant plasmid pEGFP-ORF1 and induced apoptosis by actinomycin D has no statistically significant difference compared with the untreated normal control group (P > 0.05), but remarkable higher than Vero cells transfected with empty plasmid pEGFP-C2 and induced apoptosis by actinomycin D, the difference was statistically significant (P < 0.05). Flow cytometry assay shows that the cells apoptosis rate had no significant difference between pEGFP-ORF1 group and the normal group, but the cells apoptosis rate ofpEGFP-ORF1 was lower than the pEGFP-C2 group. HSV-2 LAT ORF1 gene can be expressed in Vero cells and can protect Vero cells from apoptosis induced by actinomycin D.
Animals ; Apoptosis ; physiology ; Cercopithecus aethiops ; Dactinomycin ; Herpes Simplex Virus Protein Vmw65 ; genetics ; Herpesvirus 2, Human ; genetics ; Open Reading Frames ; genetics ; Promoter Regions, Genetic ; Transcription, Genetic ; Vero Cells ; Viral Proteins ; genetics ; Virus Activation ; Virus Latency ; genetics ; physiology

Objective To explore the relationship among psychological resilience, self-efficacy and core competence in psychiatric nurses. Methods Totally 237 psychiatric nurses in a psychiatric hospital in Shandong province were recruited and assessed with general information questionnaire, Connor-Davidson Resilience Scale, General Self-Efficacy Scale and Competency Inventory for Registered Nurse. Results The total core competence of psychiatric nurses was (2.59 ± 0.66) points, at a moderate level. Psychological resilience were positively corrected with self- efficacy (r=0.454,P=0.000) and core competence (r=0.647, P=0.000), self-efficacy were positively corrected with core competence (r=0.487, P=0.000). Psychological resilience partially mediate the relationship between self- efficacy and core competence, It′s mediating effect was 44.8%. Conclusions Psychological resilience plays an important role to core competence in psychiatric nurses.Nursing managers should carry out related training, improve the psychological resilience and self-efficacy of psychiatric nurses, and comprehensively improve the level of core competencies.

Background and purpose: Ovarian lymphoma (OL) is usually misdiagnosed as ovarian cancer with bulk lymph node invasion (OC-BLN), and vice versa. Therefore, to distinguish these two types of disease, we compared their clinical characteristics in this study. Methods: This study retrospectively reviewed 14 OL and 14 OC-BLN patients from Fudan University Shanghai Cancer Center and Shanghai Eighth People's Hospital. The clinical char-acteristics, image and laboratory examination data were compared. Results: There was no significant difference in age, symptom, fever, weight loss and volume of ascitic fluid between the two groups. Comparing with OC-BLN, OL patients have larger tumor in ovaries [(13.04±5.94) cm vs (7.78±6.38) cm, P=0.033], and higher percentage of solid ovarian tumor (85.71% vs 28.5%, P=0.006). Lactate dehydrogenase(LDH)/CA125 was higher in OL (7.66±8.03) than OC-BLN (0.31±0.27, P=0.009). Using LDH/CA125 to diagnose OL, area under the curve (AUC) was 0.952. When the threshold value was set at 1, the sensitivity and specificity was 91.7% and 100%, respectively. Conclusion: OL and OC-BLN are easily to be misdiagnosed. OL has larger and more solid tumor than OC-BLN. LDH/CA125 can help to distinguish these two diseases and guide clinical decision making.

Objective To explore the effects of different doses of topiramate (TPM) on the expression of nerve cell adhesion molecule (NCAM) and growth-associated protein 43 (GAP- 43) mRNA in hippocampus of rats with epilepsy. MethodsForty-eight rats were randomly divided into normal control group, kainic acid (KA) group, 10 mg/kg TPM group, 40 mg/kg TPM group, 100 mg/kg TPM group and 400 mg/kg TPM group (n=8). The models of rats with epilepsy treated by different doses of TPM were established. The behavior of rats was observed, and the expression of NCAM and GAP- 43 mRNA in hippocampus of rats was determined by Real-time PCR. Results The expression of NCAM and GAP- 43 mRNA in KA group was significantly higher than that in normal control group (P<0.01), while there was no significant difference between 10 and 40 mg/kg TPM groups and KA group, that in 100 and 400 mg/kg TPM groups was significantly lower than that in KA group (P<0.01), and that in 400 mg/kg TPM group was significantly lower than that in 100 mg/kg TPM group (P<0.01). Conclusion KA can up-regulate the expression of NCAM and GAP- 43 mRNA in hippocampus of rats with epilepsy. Higher dose of TPM can inhibit the expression of NCAM and GAP- 43 mRNA, and the inhibitory effect is related with the dose of TPM.

OBJECTIVE: To investigate the relationship between human papillomavirus (HPV) infection and pathogenesis of nasal inverted papilloma (NIP) and its malignant transformation. METHOD: Fifty-seven cases of NIP were divided into 2 groups: benign group, squamous cell carcinoma (SCC) arising in NIP group (malignancy group). HPV-DNA types of 6, 11, 16, 18 were detected by polymerase chain reaction (PCR) in 57 cases of NIP. Thirty cases of nasal polyps were control. RESULT: Total positive rate of HPV in NIP was 64.9% (37/57). The positive rate of benign group was 60% (27/45), all with single and low risk HPV11 type infection. The positive rate of malignancy group were was 83.3% (10/12), and the majority were HPV16 and HPV18. Five cases had double infection (4 with HPV16 and HPV 18, 1 with HPV11 and HPV18), four had single HPV16 infection, another one had single HPV11 infection. However, HPV-DNA was not detected in any cases of nasal polyps. CONCLUSION Infection of HPV-DNA has an important effect in pathogenesis of NIP. Meanwhile, there maybe a close relationship between high risk HPV16 type and HPV18 type and malignant transformation of NIP.
Adult ; Aged ; Aged, 80 and over ; Cell Transformation, Neoplastic ; pathology ; Female ; Humans ; Male ; Middle Aged ; Nose Neoplasms ; pathology ; virology ; Papilloma, Inverted ; pathology ; virology ; Papillomaviridae ; Papillomavirus Infections ; pathology ; Young Adult

Objective:To evaluate the autogenous arteriovenous fistula(AVF) insufficiency by ultrasound monitoring of brachial artery resistance index(RI).Methods:The brachial artery RI and blood flow volume(FV) data of 828 patients who underwent color-Doppler ultrasound detection after AVF in the General Hospital of Western Theater Command from January 2019 to June 2021 were retrospectively analyzed. The patients were grouped according to the adequacy of clinical dialysis, including 668 patients in the group with normal AVF function and 160 patients in the group with insufficient AVF function. The general information and ultrasonic measurement parameters were compared between the two groups. The correlation between brachial artery FV and RI was analyzed. The evaluation of brachial artery flow RI for AVF insufficiency was analyzed by ROC curve.Results:There were statistically significant differences between the two groups in brachial artery RI and FV(both P<0.001). The results of Pearson correlation analysis showed that brachial artery FV was negatively correlated to RI ( r=-0.657, P<0.001). The area under ROC curve for assessing AVF function by brachial artery RI was 0.970, with 95% CI was 0.955-0.986, the optimal cut-off value was 0.665, and the sensitivity and specificity were 0.888 and 0.955, respectively. Conclusions:Brachial artery RI in patients with AVF insufficiency is significantly higher than that in patients with normal AVF function. The optimal cutoff value of brachial artery RI can be used as an evaluation parameter for rapid screening of AVF function.

Objective: To explore the relationship between parenting style and emotional behavior problems in children with development dyslexia (DD), so as to provide reference for family support and intervention measures. Methods: From June to September 2023, 201 children in DD group and typically developing matched by age and sex were selected from the students in grades 3-6 of 4 primary schools in a district of Xinjiang by random cluster sampling method. The Childrens Version of the Parenting Style Scale and the Strength and Difficulty Scale were administered, and the occurrence of childrens emotional behavior problems and parentingstyles in the two groups were compared by Chisquare test and Wicoxon rank sum test. The correlation between parents parenting styles and childrens emotional behavior problems was analyzed by generalized linear regression. Results: The detection rates of emotional behavior problems were 45.77% in DD group and 15.42% in normal control children group. The differences in parenting styles between fathers and mothers of the DD group and the normal control group were statistically significant in terms of emotional warmth, parenting anxiety, and overprotection (Z=4.02, 29.03; 4.94, 26.32; 23.47, 5.30, P<0.05). Generalized linear regression analysis showed that father affective warmth was positively correlated with emotional symptoms, hyperactivity, peer interaction problems and prosocial behaviors (β=0.08, 0.05, 0.05, 0.09, P<0.05). The emotional warmth of mothers in DD group was negatively correlated with emotional symptoms, conduct problems, hyperactivity and peer interaction problems (β=-0.18, -0.08, -0.07, -0.08, P<0.05). Conclusions Parenting style is an important factor affecting the emotional behavior problems of DD children. Improving parenting style can reduce the occurrence of emotional behavior problems of DD children.

Background and objective Epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) has been used for the first-line treatment of non-small cell lung cancer (NSCLC) and has shown good clinical eects. However, some patients fail to benefit from this treatment. e aim of this study is to analyze whether or not clinical-selected patients (Asian, adenocarcinoma histology, non-smoking) and EGFR mutation-selected patients benefit from EGFR-TKIs or chemo-therapy. Our results could be used as basis to guide clinical therapy. Methods Randomized controlled trials evaluating the ef-ficacy of EGFR-TKIs versus chemotherapy as first-line treatments of NSCLC were obtained from electronic databases, namely, PubMed, Embase, American Society of Clinical Oncology (ASCO), European Society for Medical Oncology, and China Biol-ogy Medicine disc. Assessment, data collection, and statistical analysis were performed according to Cochrane Handbook 5.1.0. Results A total of 14 randomized controlled trials with 5,000 patients were included in this study. Compared with the chemo-therapy group, EGFR-TKI therapy group in EGFR mutation-selected NSCLC patients showed a higher response rate (RR=2.31;95%CI: 1.88-2.84) and more significant improvement in progression free survival (PFS; HR=0.39; 95%CI: 0.30-0.49); by contrast, no significant dierence was observed in overall survival (OS; HR=0.99; 95%CI: 0.84-1.16). e response rate of clinical-selected patients treated with EGFR-TKI significantly increased (RR=1.30; 95%CI: 1.15-1.47) compared with that of the patients treated with chemotherapy; PFS (HR=0.93; 95%CI: 0.58-1.49) and OS (HR=0.91; 95%CI: 0.81-1.02) of the two groups did not significantly dier. Likewise, the PFS and the OS of the unselected patients in the EGFR-TKI treatment group and the chemotherapy group did not significantly dier, although the OS of the former was shorter than that of the laer. Con-clusion EGFR mutation-selected patients received more benefits from EGFR-TKI first-line treatment than other treatments. First-line EGFR-TKI treatment was recommended for clinically selected patients who were unsuitable for themotherapy. By comparison, first-line EGFR-TKI treatment was not a suitable choice for unselected patients.