1.Combination of conjoint fascia sheath suspension and levator palpebrae superioris shortening for treatment of congenital severe blepharoptosis
Linhai CHEN ; Guanghao LIN ; Peng WEI ; Mengdan TANG ; Changyan WU
Chinese Journal of Medical Aesthetics and Cosmetology 2022;28(6):484-487
Objective:To investigate the therapeutic effect of conjoint fascia sheath suspension and levator palpebrae muscle shortening on congenital severe blepharoptosis.Methods:From June 2014 to December 2018, 30 cases (40 eyes) of congenital severe ptosis were treated in Ningbo First Hospital and Shaoxing Women and Children's Hospital. All patients were corrected by conjoint fascia sheath suspension and levator palpebrae muscle shortening. Six months after operation, the distance between the middle point of upper eyelid margin and corneal reflex point was measured to evaluate the correction effect of blepharoptosis; the improvement of upper eyelid appearance was evaluated by 5-point Likert scale (LS), and the incidence of complications was counted.Results:Thirty patients (40 eyes) were followed up for 6-12 months. Correction effect showed that preoperative marginal reflex distance (MRD) was (0.10±0.05) and postoperative MRD was (3.80±0.55); the difference was statistically significant ( t=0.95, P<0.05); 38 eyes (95%) were corrected and 2 eyes (5%) were undercorrected; appearance of upper eyelid showed that preoperative LS was (0.50±0.05) and postoperative LS (3.80±0.55); the difference was statistically significant ( t=0.98, P<0.05). Only one case was complicated with keratitis caused by improper early nursing after incomplete closure exposure, and the patient was cured by sealing the eyes combined with drug conservative treatment. Conclusions:Combined conjoint fascial sheath suspension and levator palpebrae shortening in the treatment of severe blepharoptosis has significant effect, with the advantages of simple operation, small surgical trauma, low recurrence rate, low incidence of complications, high predictability of surgical results and high satisfactory rate of patients.
2.Influence of the antithrombotic pressure pump on the intracranial pressure of the severe traumatic brain injury patients
Yuping LU ; Shanshan HONG ; Jianying WANG ; Xueyan WU ; Liping HUANG ; Yanhong FENG ; Yanbo SONG ; Yaqiong GAO ; Juan XU ; Mengdan SI ; Wei WU ; Kaixuan YAN
Chinese Journal of Modern Nursing 2016;22(12):1714-1717
Objective To evaluate effect of antithrombotic pressure pump on the intracranial pressure (ICP) of the severe traumatic brain injury(STBI) patients who were performed the surgery.Methods A total of 120 consecutive STBI patients after the surgery , who were admitted at Neurological Intensive Care Units (NICU) from April 2013 to September 2014, were randomly divided into (research group and control group ). Each group had 60 patients .In the 6 days observation , research group received the treatment of antithrombotic pressure pump among the first 3 days after the surgery , and the treatment was stopped among the last 3 days. Control group received the opposite treatment .ICP was continuously monitored and all the data ( mean ICP, times of ICP ≥20 mmHg, the highest ICP per day ) were performed statistical analysis .Results Mean ICP,times of ICP≥20 mmHg and the highest ICP per day in two groups decreased significantly after the surgery ( P<0.05).The difference of Mean ICP, times of ICP ≥20 mmHg and the highest ICP per day between the two groups were not significant .No patient got the deep vein thrombosis ( DVT ) .Conclusions Antithrombotic pressure pump could efficiently prevent deep vein thrombosis , which is a safe treatment for STBI patients and has no influence on the ICP .
3.Effect of basic fibroblast growth factor on autophagy of nerve cells in rats after traumatic brain injury
Chonghu TANG ; Zhanjian FANG ; Yilan HU ; Yudong SHAN ; Yun TONG ; Mengdan CHEN ; Xiaojie WEI ; Fenzan WU
Chinese Journal of Trauma 2019;35(5):407-415
Objective To investigate the effect of basic fibroblast growth factor (bFGF) on autophagy of nerve cells in rats after traumatic brain injury (TBI).Methods A total of 120 healthy adult male SD rats were randomly divided into sham group,TBI + vehicle group,and TBI + bFGF group by random number table method,with 40 rats in each group.PinPointTM Precision Cortical Impactor was used to simulate the pathological damage after TBI.In the sham group,the dura was exposed without impact.In the TBI + bFGF group,250 μg/kg of human recombinant bFGF was given in the nasal cavity 1 hour before the modeling,while in the sham group and TBI + Vehicle group,the same amount of saline was given in the nasal cavity 1 hour before the modeling.The necrotic cells were observed by propidium iodide(PI) staining 6 hours after injury.The effect of bFGF on the nerve function after TBI in rats was evaluated with modified neurological severity score (mNSS) 24 hours after injury.The water content of brain tissue was measured by dry and wet method 48 hours after injury.The ratio of Beclin-1,P62 protein and microtubule-associated protein 1 light 3 (LC3)-Ⅱ/Ⅰ protein was detected by western blot.The volume of brain injury was calculated by integral method of brain tissue section.The positive neuron specific nuclear protein (NeuN) cells were observed by immunofluorescence staining.The apoptotic cells were observed by TUNEL.Results Compared with the sham group [(4.0 ± 1.2) %],the percentage of necrotic cells in TBI + vehicle group [(54.3 ± 10.1) %] and TBI + bFGF group [(34.5 ± 10.5) %] increased significantly (P < 0.05),but the percentage of necrotic cells in TBI + bFGF group increased less than that in TBI + vehicle group (P < 0.05).Compared with the sham group [(0.3 ± 0.5)points],the mNSS in the TBI + vehicle group [(5.8 ±0.8)points] and TBI + bFGF group [(4.7 ± 1.1) points] were significantly increased (P < 0.05),but the mNSS of TBI + bFGF group was lower than that of TBI + vehicle group (P < 0.05).Compared with the sham group [(76.7 ± 0.7) %],the water content of brain tissue of TBI + vehicle group [(79.2 ± 0.5) %] and TBI + bFGF group [(78.4 ± 1.0) %] were significantly increased (P <0.05),but the water content of TBI + bFGF group was significantly lower than that of TBI + vehicle group (P <0.05).Compared with the sham group,protein expression of Beclin-1 and LC3-I/Ⅰ in TBI + vehicle group and TBI +bFGF group were significantly improved (P < 0.05),P62 protein expression was significantly decreased (P < 0.05),the volume of brain tissue injury was significantly increased (P < 0.05),the number of positive NeuN cells increased significantly (P < 0.05),and the number of apoptotic cells and apoptotic cells were significantly increased (P <0.05).Compared with the TBI + Vehicle group,the up-regulation of Beclin-1 protein and LC3-Ⅱ/Ⅰ protein ratio was obviously inhibited in the TBI + bFGF group (P < 0.05),the down-regulation of P62 protien was significantly suppressed,the volume of brain tissue injury was significantly decreased,and the number of positive NeuN cells and apoptotic cells was significantly reduced (P < 0.05).Conclusion The bFGF can significantly inhibit excessive autophagy in rats after TBI,reduce brain edema,reduce cell apoptosis and necrosis,and improve neural function.
4.Exploration of deferred informed consent in clinical research
Yan WANG ; Xu LI ; Kuikui WEI ; Mengdan LIU ; Qiong WU ; Pingping DONG ; Xiaomei CAO ; Weiqin LI ; Yuxiu LIU
Chinese Medical Ethics 2024;37(2):152-157
Informed consent is an important ethical symbol in clinical research,and researchers have the responsibility to fully inform participants of the research information before conducting clinical research.However,it is difficult to obtain complete informed consent form participants or their guardians within a narrow treatment time period in clinical research conducted in emergency situations.Currently,in addition to traditional general informed consent,there are also reality-accepted informed consent,including exemption of informed consent,broad informed consent,and deferred informed consent.By introducing the origin and development process of deferred informed consent in clinical research,this paper sorted out the current application status of deferred informed consent,proposed the prerequisites for applying deferred informed consent in emergency situations,and explored the issues that need to be noted during the application process of deferred informed consent.It is hoped to provide an ethical defense and ethical procedure for the application of deferred informed consent in clinical research in emergency situations.
5.Weight status related early changes in blood pressure, cardiac structure and function in 4-year-old children
Jian WANG ; Hualin WANG ; Bowen DU ; Zhuoyan LI ; Yujian WU ; Yiwei NIU ; Mengdan WEI ; Sun CHEN ; Kun SUN
Chinese Journal of Pediatrics 2022;60(6):551-556
Objective:To explore the association between weight status and early changes in blood pressure, cardiac structure and function in children at 4 years of age.Methods:A cross-sectional study of the relationship between weight status and cardiovascular parameters was performed on the platform of "Shanghai Birth Cohort" in Shanghai Xinhua Hospital between 2017 and 2020. Height, weight, blood pressure and echocardiography were measured in 1 477 children at 4 years of age. According to body mass index (BMI), participants were classified into five groups: underweight, lean, normal weight, overweight and obese. Blood pressure, cardiac structure and function indexes were compared among different groups using one-way ANOVA. The associations between blood pressure, cardiac structure and function and weight status in children were analyzed by linear regression models. Multivariate logistic regression models were used to analyze whether weight status was an independent risk factor for elevated blood pressure or left ventricular hypertrophy (LVH) in children.Results:A total of 1 477 children including 772 boys and 705 girls were included in this study. There were 115 overweight and obese boys (14.9%) and 68 overweight and obese girls (9.6%). The majority of children had normal weight (916 cases, 62.0%), followed by underweight (303 cases, 20.5%), overweight (130 cases, 8.8%), lean (75 cases, 5.1%), and obese (53 cases, 3.6%). With the increase of BMI, systolic blood pressure, diastolic blood pressure, left ventricular mass index (LVMI), left ventricular posterior wall thickness in systole, left ventricular posterior wall thickness in diastole, left ventricular diameter in end-systole, left ventricular diameter in end-diastole, interventricular septum thickness in systole and left ventricular ejection fraction showed significantly positive trend, and the differences among the groups were significant (F=31.73, 6.59, 14.22, 4.96, 3.01, 31.50, 39.79, 5.91, 3.09, all P<0.05). Multiple linear regression showed that overweight and obese were all positively associated with systolic blood pressure (β=5.2, 95% CI 3.6-6.8), LVMI (β=1.9, 95% CI 0.8-3.1), left ventricular diameter in end-systole (β=1.3, 95% CI 0.9-1.8), and left ventricular diameter in end-diastole (β=1.6, 95% CI 1.0-2.2). In the Logistic regression model, compared with normal weight children, overweight ( OR=2.37, 95% CI 1.37-4.41) and obese children ( OR=10.90, 95% CI 4.47-26.60) both had significantly increased risk of elevated blood pressure. However, the risk of LVH did not significantly increased. Conclusions:Overweight and obesity in 4-year-old children are associated with increased blood pressure, increased left ventricle diameter and LVMI. Overweight and obesity are independent risk factors for elevated blood pressure in children at 4 years of age.
6.Signal mining and analysis of selinexor adverse events
Yaqing CHEN ; Mengdan XU ; Hangye GU ; Junlin WU ; Yong CHEN
China Pharmacy 2024;35(2):210-213
OBJECTIVE To mine the adverse drug event (ADE) signals of selinexor, and to provide reference for its clinical safety medication. METHODS ADE data for selinexor reported from July 3rd, 2019 to March 31st, 2023 were collected from the FDA adverse event reporting system (FAERS). Data mining was performed by using the reporting odds ratio (ROR) and proportional reporting ratio (PRR) methods, and categorization statistics were performed by using the system organ class (SOC) and preferred term (PT) from drug ADE terminology set in the MedDRA (version 26.0). RESULTS A total of 3 084 ADE reports were obtained for selinexor, with a total of 134 ADE-positive signals. Among the reported genders, there were 127 males and 124 females, with a predominant age of ≥65 years old (4.12%); the United States had the highest number of reports (96.53%), with consumers being the main reporters (77.27%); severe ADR was mainly characterized by hospitalization/prolonged hospitalization (26.26%), followed by death (17.15%). The top 3 ADE in the list of frequency were nausea (1 162 times), fatigue (790 times) and anorexia (610 times), all of which were mentioned in the selinexor’s instructions. The top 3 signals in the list of strength were device-associated bacteremia (ROR=115.07, PRR=114.94), blepharospasm dysfunction (ROR=106.70, PRR=106.54), and salmonella sepsis (ROR=99.90, PRR=99.81), all of which were not mentioned in the selinexor’s instructions. CONCLUSIONS In addition to the ADE of nausea mentioned in the instruction manual, attention should also paid to device-associated bacteremia, blepharospasm dysfunction, salmonella sepsis, and other ADE not mentioned in the instruction manual when using selinexor in clinical practice; weekly rechecking of the patient’s blood routine should be done to monitor the patient’s blood indexes, symptoms of infection, and so on, to ensure that the safety of 1661962346@qq.com drug use.
7.Cucumber downy mildew and the mechanisms of host resistance: a review.
Shicheng XU ; Hebing WANG ; Junjie FENG ; Huafeng XIANG ; Mengdan WU ; Zhimin WANG ; Dayong WEI ; Hongcheng ZHANG ; Qinglin TANG
Chinese Journal of Biotechnology 2022;38(5):1724-1737
The cultivation and production of cucumber are seriously affected by downy mildew caused by Pseudoperonospora cubensis. Downy mildew damages leaves, stems and inflorescences, and then reduces the yield and quality of cucumber. This review summarized the research advances in cucumber downy mildew, including pathogen detection and defense pathways, regulatory factors, mining of pathogens-resistant candidate genes, proteomic and genomic analysis, and development of QTL remarks. This review may facilitate clarifying the resistance mechanisms of cucumber to downy mildew.
Cucumis sativus/genetics*
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Oomycetes/genetics*
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Peronospora
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Plant Diseases/genetics*
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Proteomics
8.Mechanisms of alternative splicing in regulating plant flowering: a review.
Huanhuan LU ; Qinlin DENG ; Mengdan WU ; Zhimin WANG ; Dayong WEI ; Hebing WANG ; Huafeng XIANG ; Hongcheng ZHANG ; Qinglin TANG
Chinese Journal of Biotechnology 2021;37(9):2991-3004
Flowering is a critical transitional stage during plant growth and development, and is closely related to seed production and crop yield. The flowering transition is regulated by complex genetic networks, whereas many flowering-related genes generate multiple transcripts through alternative splicing to regulate flowering time. This paper summarizes the molecular mechanisms of alternative splicing in regulating plant flowering from several perspectives, future research directions are also envisioned.
Alternative Splicing/genetics*
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Arabidopsis/metabolism*
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Arabidopsis Proteins/genetics*
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Flowers/genetics*
9.Molecular mechanisms of RPD3 family members in regulating plant development and environmental responses.
Qinlin DENG ; Huanhuan LU ; Mengdan WU ; Maolin RAN ; Zhimin WANG ; Dayong WEI ; Qinglin TANG
Chinese Journal of Biotechnology 2021;37(8):2645-2657
Lysine acetylation is one of the major post-translational modifications and plays critical roles in regulating gene expression and protein function. Histone deacetylases (HDACs) are responsible for the removal of acetyl groups from the lysines of both histone and non-histone proteins. The RPD3 family is the most widely studied HDACs. This article summarizes the regulatory mechanisms of Arabidopsis RPD3 family in several growth and development processes, which provide a reference for studying the mechanisms of RPD3 family members in regulating plant development. Moreover, this review may provide ideas and clues for exploring the functions of other members of HDACs family.
Arabidopsis/metabolism*
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Histone Deacetylases/metabolism*
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Histones
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Plant Development/genetics*