【Objective】 To investigate the trend of neutralizing antibody level in plasma donors who received the 3rd shot of inactivated novel coronavirus vaccine. 【Methods】 Three commercial ELISA kits for novel coronavirus neutralization antibody detection, manufactured by Company A, B and C, were chosen and screened by Pseudotype Neutralization Test from December 2021 to June 2022. A total of 410 plasma samples from 64 plasma donors who received the 3rd shot of inactivated novel coronavirus vaccine and there after donated plasma within six months were detected by the selected ELISA kit from July to October, 2022. The data were analyzed by Excel 2013 and SPSS 26 software. 【Results】 The high-throughput ELISA kit for SARS-CoV-2 neutralizing antibody detection, manufactured by Company A, was selected for further antibody titer detection. The mixed plasma titers were 1 337.34, 1 148.89, 852.19, 681.38, 556.44 and 457.19 U/mL from 1 to 6 months, respectively, after the 3rd shot of vaccine. The neutralizing antibody titer level began to increase around 7 days after the 3rd shot of vaccine injection and peaked (peak range: 264.07-2 208.39 U/mL, median: 569.34 U/mL) at 1 month (range: 9-43 days, median: 22 days), and then gradually decreased (P<0.05). 【Conclusion】 The neutralizing antibody titer of plasma donors who received the 3rd shot of inactivated novel coronavirus vaccine began to rise around 7 days after vaccination, which reached the peak value at around 1 month and then gradually decreased.

【Objective】 To investigate the distribution of plasma donors with high titer neutralizing antibodies against human cytomegalovirus (HCMV) in the general plasma donor population. 【Methods】 920 plasma samples of Taibang were tested in April 2014 to investigate the distribution of anti-HCMV neutralizing antibodies. After further testing of mixed plasma, the threshold for screening plasma was determined. From October 2019 to May 2020, neutralizing anti-HCMV in 40 078 plasma samples from 11 plasma stations in Shandong province were screened by the microcytopathic method (modified high-flux neutralization test method). The proportion of neutralizing anti-HCMV enriched in high titer and the distribution in the donor population were analyzed by SPSS 26 and Minitab19 analysis software. 【Results】 Among 920 samples, 73.26%, 0.43%, and 8.69% of them had neutralization titer<1∶15, ≥1∶60 and ≥1∶30, respectively. The neutralization titer of mixed plasma was detected, and 1∶30 was determined as the high titer. The yielding rate of high titer neutralizing anti-HCMV in Shandong was 9.06% (3 633/40 078). The proportion of plasma donors with high-titer neutralizing anti-HCMV in the donation population from plasma stations was 4.95%~13.03% (9.06±2.07) %. The proportion of plasma donors with high-titer neutralizing anti-HCMV by gender was 15.67% (2 185/13 951) in women and 5.54% (1 448/26 127) in men(P<0.05). 【Conclusion】 There was a certain proportion of plasma donors wiht high titer neutralizing anti-HCMV in the population of plasma donors in Shandong, and they can constantly serve neutralizing anti-HCMV to ensure the production of anti-HCMV immunoglobulin preparations.

Objective:To explore the differences in intravascular ultrasound results in elderly coronary heart disease(CHD)patients with different uric acid levels.Methods:A total of 145 elderly patients diagnosed with CHD in our hospital from December 2017 to May 2020 were included as study subjects.Uric acid levels were measured and intravascular ultrasound examination was conducted in all patients.They were divided into different groups based on uric acid levels: Group A(uric acid≤199 μmol/L), Group B(uric acid 200~399 μmol/L)and Group C(uric acid≥400 μmol/L). Data from intravascular ultrasound-derived indexes were analyzed and compared between the three groups.Results:There was no significant difference in the degree of left main stenosis between Group A and Group B, but it was less severe in both groups than in Group C( F=5.625, P=0.039). Plaque fibrous cap thickness showed no significant difference between Group B and Group C, but it was smaller than in Group A( F=7.825, P=0.020). Group C had the largest plaque area and maximum thickness among the three groups, followed by Group B[(11.12±1.73)mm 2 and(1.76±0.24)mm]and Group A[(8.29±3.14)mm 2 and(1.38±0.09)mm]( F=6.384 and 6.827, P=0.028 and 0.015). Conclusions:Elevated uric acid levels in elderly CHD patients can increase the area and thickness of plaques, and reduce plaque fibrous cap thickness, leading to an increased risk of formation of unstable plaques, which can be life-threatening for these patients.Thus, monitoring and managing uric acid levels should be stressed in elderly CHD patients.

Objective:To explore the effect of kangaroo care on the neurological behavior of neonatal intensive care unit (NICU) neonates with asphyxia.Methods:Totally 76 cases of neonatal asphyxia admitted to NICU from January 2018 to December 2018 were randomly divided into observation group (40 cases) and observation group (36 cases). The control group was given routine nursing care, while the observation group was given kangaroo nursing intervention on the basis of the control group. The neurobehavioral changes, the occurrence of nervous system damage and the physical development after 42 days of birth were compared between the two groups.Results:The scores of behavior ability (11.64 ± 0.26), original reflex (5.89 ± 0.32), passive muscle tension (7.64 ± 0.46), active muscle tension (7.83 ± 0.55), general reaction (6.17 ± 0.46) in the intervention observation group were significantly higher than those in the control group (11.02 ± 0.39), original reflex (5.53 ± 0.31), passive muscle tension (7.21 ± 0.47), active muscle tension (6.17 ± 0.46) Tension (7.41 ± 0.41), general reaction (5.88 ± 0.41) ( t values were 8.227, 4.970, 4.027, 3.740, 2.888, P<0.05). The incidence of neurological damage in the observation group was 2.50% (1/40) which was significantly lower than 16.67% (6/36) in the control group ( χ 2=4.117, P < 0.05). The growth of body weight (2.17 ± 0.42) kg, length (7.15 ± 1.74) cm and head circumference (4.38 ± 0.93) cm in the observation group were significantly higher than those in the control group (1.68 ± 0.39) kg, (5.89 ± 1.81) cm, (3.81 ± 0.79) cm ( t values were 5.252, 3.093, 2.863, P<0.05). Conclusion:Kangaroo nursing can effectively promote the neurological development and physical development of neonatal asphyxia, and reduce the nervous system damage of asphyxiated neonates, and the operation is simple and easy, which is worthy of clinical application.

By removing a part of the structure, the tooth preparation provides restorative space, bonding surface, and finish line for various restorations on abutment. Preparation technique plays critical role in achieving the optimal result of tooth preparation. With successful application of microscope in endodontics for >30 years, there is a full expectation of microscopic dentistry. However, as relatively little progress has been made in the application of microscopic dentistry in prosthodontics, the following assumptions have been proposed: Is it suitable to choose the tooth preparation technique under the naked eye in the microscopic vision? Is there a more accurate preparation technology intended for the microscope? To obtain long-term stable therapeutic effects, is it much easier to achieve maximum tooth preservation and retinal protection and maintain periodontal tissue and oral function health under microscopic vision? Whether the microscopic prosthodontics is a gimmick or a breakthrough in obtaining an ideal tooth preparation should be resolved in microscopic tooth preparation. This article attempts to illustrate the concept, core elements, and indications of microscopic minimally invasive tooth preparation, physiological basis of dental pulp, periodontium and functions involved in tool preparation, position ergonomics and visual basis for dentists, comparison of tooth preparation by naked eyes and a microscope, and comparison of different designs of microscopic minimally invasive tooth preparation techniques. Furthermore, a clinical protocol for microscopic minimally invasive tooth preparation based on target restorative space guide plate has been put forward and new insights on the quantity and shape of microscopic minimally invasive tooth preparation has been provided.

Objective To study the effects of quality control circle (QCC) activities on nursing quality of children with hand foot mouth disease. Methods A total of 104 children with hand foot and mouth disease in the pediatric emergency department of Zhoushan Maternal and Child Health Care Hospital from May 2015 to December 2017, when QCC activities have been were carried out, selected as observation group. At the same time, 104 cases of hand foot mouth disease children from January 2014 to April 2015, before QCC carried out, were selected as control group. The comprehensive evaluation of nurses, nursing quality, mistake rate of medical record and evaluation and the ability of quality control management of the nurses were compared between the two groups. Results The comprehensive evaluation, nursing quality and the ability of quality control of the observation group were all higher than those of the control group, and the mistake rate of medical record and card was lower than the control group. All the differences were statistically significant (P＜ 0.01). Conclusions Quality control circle activities can improve the quality of care for children with hand, foot and mouth disease, improve the comprehensive evaluation and quality management ability of nurses, which is worthy of clinical application.

Objective To observe the effect of Gongxuening for the women placing the IUDafter cesarean section, and to analyze the effect and value of Gongxuening on intrauterine device placement after cesarean section. Methods 156 women who received voluntary intrauterine device after cesarean sectionin theShengzhou Maternal and Child Health Hospital of Shaoxing, Zhejiang were as the observation object. According to whether the application of Gongxuening, they were divided into two groupsafter treatment, the Gongxuening group of 75 cases (using Gongxuening + Nifloxacin) and the control group of 81 cases (using norfloxacin). The changes of serum inflammatory indexes were compared between the two groups before and after operation, and the uterine bleeding was compared between the two groups. Results After operation, the levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-10 (IL-10) were with a significantfluctuation, and at the same time, Gongxuening group TNF-α, IL-6, IL-10, 24hours after surgery, postoperative 7d was significantly lower than the control group, the difference was statistically significant (P< 0.05). After treatment, the WBC of Gongxuening group 24hours after surgery, postoperative 7d was significantly lower than the control group, but the Hb 24 hours after surgey was significantly higher than the control group, the difference was statistically significant (P<0.05). The bleeding volume2h, 24h, bleeding stop time and puerperium duration in the Gongxuening group were significantlylower than the control group, the difference was statistically significant (P<0.05). Conclusion After cesarean section maternal IUD use Gongxuening capsule treatment, not only can effectively inhibit the expression of serum inflammatory markers, and can shorten the time of uterine bleeding, reduce bleeding, prevent postoperative anemia. It is suggested to pay more attention to clinical treatment.

Objective The aims of this study were to determine the expression of Ki-67 and PTEN in oral adenoid cystic carcinoma( OACC) and its relationship with clinicopathological features,and to explore the re-lationship between the expression of Ki-67 and PTEN. Methods Forty cases of oral adenoid cystic carcinoma were collected from the pathological laboratory in our hospital. Another 15 cases of normal gland in patients with oral adenoid cystic carcinoma were selected as the control group. The expression of Ki-67 protein and PTEN in adenoid cystic carcinoma was detected by immunohistochemistry. Results The positive rate of Ki-67 protein in oral adenoid cystic carcinoma was 70%(28/40),which was significantly higher than that in the control group(2/15)(P<0. 05). The positive rate of PTEN in oral adenoid cystic carcinoma was 63%(25/40),which was signif-icantly higher than that in the control group 20%(3/15)(P <0. 05). They were associated with histological types,metastasis,lymph node metastasis and neural invasion,and not correlated with age,gender and tumor loca-tion. The expression of Ki-67 and PTEN in oral adenoid cystic carcinoma may have a significant correlation. Conclusion The expression of Ki-67 and PTEN in adenoid cystic carcinoma is high,and their occurrence and development in adenoid cystic carcinoma play an important role in the process of evolution and metastasis. Ki-67 and PTEN proteins may be markers of oral adenoid cystic carcinoma.

Objective To explore the effects of network platform health education in the patients with cervical cancer after the operation of cervical cancer patients. Methods We selected 54 cases of cervical cancer surgery patients from June 2014 to February 2015 in our hospital for treatment according to the voluntary principle. The patients were divided into observation group and control group by random numbers, and the patients of observation group accepted continue nursing health education network platform while the patients of control group accepted routine care. The complication rate, re-hospitalization rate and treatment satisfaction of the two groups were compared. Results The complications rate and re-hospitalization rates of observe group were 0. 00%, and these of the control group were 14. 81% and 18. 52% (P<0. 05). Observation group′s satisfaction was 96. 30%, while that of the control group was only 59. 26% (P<0. 05). Conclusions Health education network platform for nursing care to a certain extent can reduce cervical cancer patient the incidence of postoperative complications,re-hospitalization rates, and increase the patients health knowledge, the effects of treatment and treatment satisfaction.

Objective To explore the application effects of targeted health education for gastroscopy patients. Methods A total of 300 gastroscopy patients treated in Gastroenterology Department were selected as objects and were randomly divided into control group ( 150 cases ) and observation group ( 150 cases ) . The patients of control group were treated with conventional health education programs, while the patients of observation group were treated with targeted health education programs on the basis of convention. Degree of discomfort during inspection, fear, nausea, vomiting, success rate of first intubation, and patient satisfaction were compared between the two groups. Results Degree of discomfort in the observation group was significantly lower than that in the control group, and patients with fear of the inspection, nausea, or vomiting in the observation group were significantly less than those in the control group ( P <0. 05 ); success rate of first intubation in the observation group was 100. 0%, significantly higher than in the control group (82. 7%) (χ2 =9. 764, P<0. 05);patient′s satisfaction in the observation group was 95. 3%, significantly higher than 76. 7%in the control group (χ2 =9. 263,P<0. 05). Conclusions Targeted health education can improve patients′discomfort level during gastroscopy, reduce fear, nausea, vomiting and other reactions, and enhance success rate of first intubation and patient satisfaction.