1.Penetrating keratoplasty for treatment of high-risk fungal keratitis A 51-case report
Guiqiu ZHAO ; Nan JIANG ; Liting HU ; Chengye CHE
Chinese Journal of Tissue Engineering Research 2009;13(18):3597-3600
BACKGROUND: Simple drug therapy can not acquire satisfactory effects in treatment of fungal keretitis. At present, penetrating keratoplasy (PKP) has been considered a primary means to cure the fungal keratitis to save eyeball and vision.OBJECTIVE: To evaluate the clinical efficacy of PKP in the treatment of high-risk fungal keratitis.DESIGN, TIME AND SETTING: A retrospective case analysis was performed at the Department of Ophthalmology, Affiliated Hospital of Qingdao University Medical University between January 2000 and January 2007.PARTICIPANTS: A total of 51 patients (51 eyes) with high-risk fungal keratitis who underwent PKP in the Affiliated Hospital of Qingdao University Medical College were recruited into this study. Of these patients, 12 suffered from perfored, 35 from hypopyon, 8 from complicated cataract prior to surgery, and 5 from complicated glaucoma.METHODS: All patients received antifungal and antibacterial treatments prior to surgery and underwent PKP within 4 days following admission. After surgery, antifungal and antibacterial treatments were performed locally and systemically. All patients were followed-up for 6--24 months.MAIN OUTCOME MEASURES: Postoperative visual acuity, recurred fungal infection, rejection of implants, secondary glaucoma, and ulceration of implant.RESULTS: ① Of 51 patients, 18 were followed-up for 6-12 months, 2 for 13-18 months, and 8 for 19-24 months. ② A total of 49 (96.1%) out of 51 patients preserved the eyeballs and the visual acuity improved to different degrees in 48 (94.1%) patients. ③ After surgery, fungal infection recurred in 6 eyes (11.6%), 4 of which were controlled by antifungal medication and 2 was enucleated because of uncontrolled endophthalmitis. Graft rejection was found in 18 (35.3%) eyes, 13 of which recovered transparent by medication and 5 received secondary PKP. Graft ulceration was present in 4 (7.84%) eyes, 3 of which were cured and the remaining one was re-grafted because of severe endothelial cell loss. Secondary glaucoma appeared in 7(13.7%) eyes, and the intraocular pressure was controlled medically and surgically. Complicated cataract occurred in 6 (11.8%) eyes, 3 of which underwent cataract extraction. Most complications were successfully controlled. In the final follow-up period, 45 (88.2%) grafts were transparent.CONCLUSION: PKP is an effective approach to preservation of eyeballs and restoration of visual function in patients with high-risk fungal keratitis, which can not be treated by conservative therapy.
2.Correlation between the biofilm-forming ability, biofilm-related genes and antimicrobial resistance of Acinetobacter baumannii
Xinxin HAN ; Qingshu LI ; Liting SHEN ; Dan HU ; Yan QU
Chinese Critical Care Medicine 2014;26(9):639-643
Objective To study the biofilm-forming ability and the distribution of biofilm-related genes in Acinetobacter baumannii clinical isolates as well as antimicrobial resistance,to analyze their relationships with the bacterial resistance phenotype.Methods A prospective study was conducted.Biofilm models of 70 strains Acinetobacter baumannii collected in Chengwu County People's Hospital from October 2012 to October 2013 were constructed using 96-well polystyrene plate.In order to analyze the biofilm-forming ability,a qualitative and quantitative analysis was conduct by crystal violet staining assay.And the antimicrobial resistance of different biofilm-forming ability strains was compared including imipenem,amikacin,meropenem,cefepime,sulbactam cefoperazone,trimethoprim,levofloxacin,gentamicin,ciprofloxacin,cefotaxime,ceftizoxime,aztreonam,piperacillin,ceftriaxone,cefuroxime.In addition,the expressions of biofilm-related gene Bap,bfs and intI1 were tested with polymerase chain reaction (PCR) assay.Results Among 70 strains Acinetobacter baumannii,40 strains were multi-drug resistant (57.14%) and 6 strains were pan-drug resistant (8.57%); 68 strains had biofilm-forming ability (97.14%),14 of which were weakly positive,20 were positive and 34 were strongly positive.The antimicrobial resistant rate of Acinetobacter baumannii to imipenem,amikacin,meropenem and cefepime was decreased,it was 30.00%,32.86%,38.57% and 41.43%,respectively.However,the antimicrobial resistant rates to other commonly used antibiotics were all higher than 50%.The drug resistance of Acinetobacter baumannii to levofloxacin (85.71%,45.00%,38.24%,x2=9.225,P=0.010),cefepime (71.43%,45.00%,29.41%,x2=7.222,P=0.027),gentamicin (78.57%,55.00%,38.24%,x2 =6.601,P=0.037) was significantly decreased when biofilm-forming ability reinforced (weakly positive,positive,hadro-positive).Bap gene positive rate of weakly positive,positive and strong positive biofilm-forming strains Acinetobacter baumannii was 50.00%,65.00% and 79.41% (x2=4.244,P=0.120),respectively.Bfs gene positive rate was 35.71%,65.00% and 88.24%,respectively (x2=13.602,P=0.001) and intI1 gene positive rate was 42.86%,75.00% and 91.18%,respectively (x2 =12.902,P=0.002).Moreover,the antimicrobial resistances of biofilm-related gene positive strains were higher than the negative,of which the drug resistance of intI1 positive group to amikacin was significantly higher than the negative group (40.38% vs.11.11%,x 2=5.194,P=0.023).Conclusions The Acinetobacter baumannii collected from the hospital had strong multi-drug resistance as well as strong biofilm-forming ability.The drug resistance of Acinetobacter baumannii decreased when biofilm-forming ability reinforced.In addition,genes,such as Bap,bfs,and intI1,contributed to biofilm formation.
3.Risk factors for incontinence- associated dermatitis in ICU patients with enteral nutrition associated diarrhea
Zhumei LIN ; Yingying MA ; Liting LIN ; Ailing HU
Chinese Journal of Practical Nursing 2016;32(23):1765-1769
Objective To identify the risk factors associated with incontinence-associated dermatitis (IAD) in ICU patients with enteral nutrition associated diarrhea (ENAD), and to provide information for taking evidence-based preventive measures. Methods We used a case-control study to collect data. Information of the patients (n=55) and controls (n=55) were retrieved from the medical records of 2 intensive care units (ICUs). The patients with IAD and the controls without IAD were matched with age, gender and ward. Information on disease-related information, perineal environment, drug use and nutritional status were collected. Results The simple factor analysis showed that the risks of IAD were related to coronary heart disease (CHD )(χ2=3.96), composite variable for perfusion (χ2=7.33), APACHE II score (χ2=9.87), FiO2 (Z=-2.96), artificial airway (χ2=93.91), ENAD days (Z=-5.45), stool property (χ2=8.46), antibacterial drug use (χ2=5.55), steroid medicine (χ2=11.34) and enteral nutrition days(Z=-3.33), P<0.05. Logistic regression analysis showed that FiO2(P<0.05,OR=1.03, OR95%CI=1.01-1.06), APACHE Ⅱscore(P<0.05,OR=3.12, OR95%CI=1.01-9.64)and ENAD days(P<0.01,OR=1.64, OR95%CI=1.29-2.10)was independent risk factors for IAD. Conclusions The higher of FiO2, APACHE II score over 15 points and the longer of ENAD days, patients are more likely to occur IAD. Early monitoring and prevention of IAD are recommended to promote skin health.
4.Construction and application of network education platform of ophthalmology
Guiqiu ZHAO ; Chengcheng ZHU ; Liting HU ; Qiang XU ; Nan JIANG ; Sheng QIU
Chinese Journal of Medical Education Research 2014;(8):861-864
The network teaching platform of ophthalmology of Qingdao University , as the basis construction of the national key discipline , forms a perfect and complete set of teaching system with the aid of part of course information, part of network teaching resources and part of answer and interaction. The network teaching platform focuses on the construction of network teaching resources and answer and interaction. In the college teaching of ophthalmology, through building clinical teaching resource database and discussing on network platform, we carry out interactive and discussion-based teaching, and students can prepare before class and discuss after class. The application of network teaching platform of ophthal-mology in classroom teaching and teaching feedback can improve the teaching methods , deepen the teach-ing content, implement the sharing of teaching resources, and lay a solid foundation for ophthalmology teaching reform.
5.Teaching exploration and practice of microsurgery technique training of ophthalmic post-graduate students
Zhaodong DU ; Liting HU ; Guiqiu ZHAO ; Jing LIN ; Qian WANG ; Lin CONG
Journal of Medical Postgraduates 2014;(12):1308-1310
Ophthalmic microsurgery has its own characteristics: high precision , complicated operation , and long learning curve.It is important for young ophthalmologists to master the basic operation skills through standardized and systematic training during graduate studies .The teaching method , integrating theoretical teaching , animal operation and simulative ophthalmic surgery training , have important meanings in promoting the post-graduate students to master the practical and correct ophthalmic microsurgery technique . The aim of this study was to introduce the curriculum design and practice , and to evaluate the model through the examination scores .
6.RNA Interference Targeting c-Met Inhibits Proliferation of Lens Epithelial Cells
Liting HU ; Guiqiu ZHAO ; Zhaodong DU ; Jing ZHANG ; Nan JIANG ; Chengye CHE
Chinese Journal of Rehabilitation Theory and Practice 2008;14(5):442-444
Objective To observe the effect of small-interfering RNA(siRNA) targeting c-Met,the receptor of hepatocyte growth factor(HGF),on the proliferation of human lens epithelial cells(LECs).Methods siRNA was transferred into LECs cultured in vitro by HiperFect Transfection Reagent.Real-Time PCR was applied to observe the expression of c-Met mRNA in LECs after gene transfer,and MTT assay was used to detect the proliferation of LECs induced by HGF.Results The expression of c-Met mRNA in LECs was significantly decreased in the experimental group,compared to that in the controls(P<0.01).Proliferation of LECs induced by HGF was inhibited,compared with the single HGF stimulated group(P<0.01).Conclusion The RNA interference targeting c-Met can effectively inhibit the expression of c-Met mRNA,and the proliferation of LECs induced by HGF.
7.β-elemene combined with pemetrexed inhibits the proliferation and increases the apoptosis of HeLa cells
Yang BAI ; Lu LI ; Litian MA ; Yi ZHANG ; Liting MAO ; Rui MA ; Qinyou REN ; Yue HU ; Jinsong XING ; Jin ZHENG
Journal of Medical Postgraduates 2015;(1):7-10
Objective Pemetrexed and β-elemene can inhibit the growth of tumor cells .This study was to investigate the effect of pemetrexed combined with β-elemene on the proliferation and apoptosis of cervical cancer HeLa cells. Methods Cervical cancer HeLa cells were treated with pemetrexed at the concentrations of 38, 76, 152, 228, and 304μg/mL, and at 24 and 48 hours of treatment subjected to MTT for detection of their proliferation .The experiment included four groups , with the cells treated with β-elemene ( 125μg/mL) , pemetrexed ( 76 μg/mL ) , β-elemene ( 125 μg/mL ) +pemetrexed (76μg/mL), and nothing (blank control) for 24 hours, followed by determination of their proliferation and apoptosis by MTT and flow cytometry, respectively. Results Pemetrexed at 38, 76, 152 and 228μg/mL inhibited the proliferation of the HeLa cells in a concentration-dependent manner, with the inhibition rates of (7.24 ±3.78), (7.94 ±4.37), (11.10 ±2.86) and (15.88 ± 3.38)%at 24 hours, and (16.69 ±0.95), (22.54 ±1.53), (24.48 ±0.92) and (25.54 ±3.61)%at 48 hours, both with statis-tically significant differences between any two groups (P<0.05).Significant differences were also found in the proliferation rate of the same concentration of pemetrexed at the two time points (P<0.05).The combination of pemetrexed and β-elemene showed an inhibi-tion rate of (49.95 ±5.76)%at 24 hours, remarkably higher than (24.36 ±5.59)%in theβ-elemene group and (10.69 ±1.37)%in the pemetrexed group (P<0.01). Conclusion Pemetrexed combined with β-elemene can significantly inhibit the proliferation and synergistically accelerate the apoptosis of HeLa cells .
8.Practical exploration of party branch construction in public hospital clinical departments from the per-spective of national model party branch creation
Liting DU ; Bo HU ; Xiaojuan SUN
Modern Hospital 2024;24(10):1511-1514
In the context of the new era of high-quality development in public hospitals,this study aims to fully leverage the guiding role of grassroots party building in discipline development and to enhance the political function of party branches.By promoting the effectiveness of party branch work,we aim to drive the high-quality development of disciplines and the hospital as a whole.The Critical Care Medicine Department at Zhongnan Hospital of Wuhan University has actively explored innovative paths for party branch construction in conjunction with the creation of"National Model Party Branches."The initiatives focus on three areas:standard construction,integrated innovation,and social service.The department has implemented the"Soul-Casting Pro-ject,""Creative Integration Project,"and"Foundation Assistance Project,"gradually forming a distinctive party branch demon-stration brand.This approach has achieved significant results in integrating party building with business operations,fully demon-strating how high-quality party building can lead to high-quality development.
9.Application effect of elaborative SBAR communication mode in hospital surgical teams
Liting WEN ; Xueping HU ; Guoqin REN ; Lihua YI
Chinese Journal of Modern Nursing 2017;23(27):3461-3464
Objective To investigate the implementation effect of the situation-background-assessment-recommendation (SBAR) communication mode in hospital surgical teams from the elaborate perspective. Methods Since 2015, the surgical teams of Wuxi No.2 People's Hospital, Affiliated to Nanjing Medical University combined the elaborate management with the SBAR communication mode. The elaborate SBAR report mode was established in the surgeries. Security check reports were carried out in the surgeries. The quality of the nurses' shifting of duty, the incidence of adverse events and the satisfaction of patients after the implementation of the mode were compared to before the implementation.Results The time of the nurses' shifting of duty was shortened from (13.1±4.5)min to(7.4±2.1)min significantly (t=10.737,P<0.01). The incidence of adverse events due to poor communication decreased from 50% to 13.33% significantly (χ2=4.950,P<0.05). The patients' satisfaction on the work of operating rooms increased from 84.44% to 95.74% significantly (χ2=6.652, P<0.05).Conclusions The implementation of the hospital surgical team SBAR communication mode in operating rooms from the elaborate perspective effectively upgrades the meaning of specialist care, optimizes the service procedure and reduces the incidence of adverse events due to poor communication, which guarantees the safety of surgical patients.
10.Panax notoginseng extracts regulate inflammatory response of immune-stressed broilers through IL-6,CASP3 and STAT3
Lin DU ; Pingrui YANG ; Hanlin ZHOU ; Lijuan QIU ; Weidong HU ; Liting CAO ; Shicheng BI
Chinese Journal of Veterinary Science 2024;44(8):1755-1764
This study aims to observe the effect of Panax notoginseng extracts on inflammatory re-sponse in immunosuppressed broilers and to investigate the mechanism through network pharma-cology and molecular docking combined with in vivo animal tests.Based on the TCMSP database and GeneCard and other disease databases,we searched for targets related to Panax notoginseng and broiler inflammation,screened key compounds and targets by applying Cytoscape 3.7.1 and String databases,respectively,and constructed a network relationship diagram of traditional Chi-nese medicine(TCM)-key components-targets,and carried out GO functional enrichment and KEGG pathway enrichment analyses by using the DAVID platform.The GO functional enrichment analysis and KEGG pathway enrichment analysis were carried out by the DAVID platform,visual-ized by the Chiplot online website,and finally,the core clustered proteins were analyzed by Pymol software to obtain the core targets,and molecular docking technology was used to predict the de-gree of matching between the active ingredients and the core targets as well as the animal experi-ments to further explore the pharmacological mechanism of Panax notoginseng extracts.Sixty 1-day-old red-feathered broilers were randomly divided into three groups(LPS group,CON group,and PN group),and the test period was 35 days.The LPS and PN groups were injected intraperito-neally with 250 μg/kg body weight of LPS,and the CON group was injected with an equal amount of sterile physiological saline on the 12,14,33,and 35 d.The LPS and PN groups were injected with 250 μg/kg body weight of LPS,and the CON group was injected with an equal amount of sterile physiological saline.The effect of Panax notoginseng extract on inflammatory cytokines in serum was detected by ELISA,and the hormone content in serum was also detected in each group,and fluorescence quantitative PCR was used to detect the effect of each group on the mRNA ex-pression levels of STAT3,IL-6,and CASP3.The results showed that the serum levels of IFN-γ,IL-6,iNOS,TNF-α,and TNF-β were significantly increased(P<0.05),while the level of IL-10 was significantly decreased(P<0.05)after LPS tapping at weeks 2 and 5.The serum levels of IFN-y,IL-6,iNOS,TNF-α,and TNF-β were significantly decreased(P<0.05)and IL-10 was sig-nificantly increased(P<0.05)by the addition of Panax ginseng extracts to the basal diet com-pared with the LPS group.Panax notoginseng extracts significantly decreased the serum levels of adrenocorticotropic hormone(ACTH)and corticosterone(CORT)(P<0.05)and increased the levels of growth hormone(GH)(P<0.05).A total of 8 active ingredients and 123 potential tar-gets for broiler inflammation were predicted by network pharmacology.The protective mechanism of Panax notoginseng against broiler inflammation may be related to the C-type lectin receptor(CLR)signaling pathway,Toll-like receptor(TLR)signaling pathway,MAPK signaling pathway,NOD-like receptor(NLR)signaling pathway,and FoxO signaling pathway.According to the pre-diction,the alleviation of inflammatory response in broiler chickens by Panax notoginseng may be related to the action on 12 key targets.Fluorescence quantitative PCR showed that Panax notogin-seng extract down-regulated the mRNA expression of IL-6 and CASP3(P<0.05)and up-regula-ted that of STAT3(P<0.05),and molecular docking results also showed that the active ingredi-ents in Panax notoginseng extracts could exert anti-inflammatory effects through IL-6 and CASP3.The results suggested that Panax quinquefolium extracts might alleviate the inflammatory response of immune-stressed broilers through multi-components,multi-targets,and multi-path-ways,and this study helps propose new therapeutic strategies and provides a theoretical basis for the development of feed additives based on Penthorum chinense Pursh extract.