1.Artificial cervical disc prosthesis and zero-profile interbody fixation and fusion system for cervical disease:2-year follow-up
Zhenyu DONG ; Ge CHU ; Yifei HUANG ; Fengyun YUAN
Chinese Journal of Tissue Engineering Research 2015;(22):3503-3507
BACKGROUND:Artificial cervical disc prosthesis simulates range of motion and buffer shock function of normal intervertebral discs. Clinical experiments verify that artificial cervical disc prosthesis material has good biocompatibility and mechanical characteristics. OBJECTIVE:To evaluate artificial cervical disc replacement and zero-profile interbody fixation and fusion system for multilevel cervical disease in 2-year folow-up. METHODS:Artificial cervical disc replacement and zero-profile interbody fixation and fusion system were used to treat 42 patients with multilevel cervical disease. The patient presented typical symptoms and signs of spinal cord or nerve root compression. There were 18 cases of cervical myelopathy, 15 cases of nerve root cervical spondylosis and 10 cases of mixed type of cervical spondylosis. After treatment, mean operation time, blood loss and reoperation rate were measured. Postoperative complications, disability index of neck function, visual analog scale, function unit range of corresponding surgery segments of the cervical spine, Cobb angle of C2-C7 vertebral body, range of motion of adjacent segment of proximal and distal vertebral bodies were observed and clinical outcomes were evaluated. RESULTS AND CONCLUSION: Al cases finished the operation and were scored at various time points. After treatment, radiating pain of shoulder and neck and upper extremity were remarkably lessened. Numbness and sensory loss symptoms disappeared obviously. Quality of life elevated noticeably. Visual analog scale and the disability index of neck function score were decreased in final folow-up compared with pre-treatment (P < 0.001). C2-C7 vertebrae Cobb angle, FSU angle, range of motion of proximal surgery adjacent segment and range of motion of the distal surgery adjacent segment were elevated compared with pre-treatment (P < 0.001). These data indicate that cervical spondylosis was improved after treatment. Each index of cervical spondylosis after artificial cervical disc replacement and zero-profile interbody fixation and fusion system was reconstructed to different degrees.
2.Establishment of double antibody sandwich ELISA for pro-gastrin releasing peptide and its application
Zhenyu CHU ; Xiaolin ZHOU ; Zhenwei XUE ; Meiping CUI ; Suqin LIN ; Ruihua LI
Journal of Medical Postgraduates 2015;(1):70-73
Objective The value of pro-gastrin releasing peptide ( PGRP) which is the tumor marker of small cell lung canc-er has become a hot topic in recent years .The research was to build a new enzyme-linked immune sorbent assay ( ELISA) method ai-ming at detecting the concentration of PGRP in patients′serum. Methods We utilized synthetic PGRP epitopes for the screening of the monoclonal antibodies , labeled the screened monoclonal antibodies with horseradish peroxidase by modified sodium iodide method , and then established double antibody sandwich ELISA which could be used to detect the serum concentrations of PGRP in cancer pa -tients. Results We successfully screened E 12 mAb which could be served as the coating antibody and ED 1 mAb as the labeled anti-body.The standard antibody density range of new ELISA was 33 pg/mL~1.7 ×104 pg/mL.The comparison experiments between our method and the commercially available ELISA kit showed no significant difference ( P>0.05).The specificity of our method was 50%, and the sensitivity was 100%, while IBL kit was 92.2% and 100% respectively. Conclusion New ELISA can be used to detect the serum PGRP concentration in patients with small cell lung cancer .
3.Grain-sized moxibustion inhibits the progression of Alzheimer disease in 5XFAD transgenic mice
Jing YU ; Xiaowei GONG ; Jiamei CHU ; Yongsheng ZHANG ; Zhenyu FAN ; Shujian LI ; Yehua BAO
Journal of Acupuncture and Tuina Science 2022;20(6):419-432
Objective: To investigate whether grain-sized moxibustion at Xinshu (BL15) and Shenshu (BL23) can alleviate cognitive decline and other pathologic features in early-stage Alzheimer disease (AD) using transgenic mice with 5 familial AD mutations (5XFAD). Methods: The genotype of transgenic mice was detected by polymerase chain reaction. A total of 40 transgenic mice (1.5 months old) were randomly and equally allocated to an AD model group (5XFAD group) or a grain-sized moxibustion group (5XFAD + GM group), with 20 wild-type (WT) mice (C57BL/6J) serving as the normal control group (WT group). Mice in the 5XFAD + GM group were treated by grain-sized moxibustion at bilateral Xinshu (BL15) and Shenshu (BL23). Mice in the WT group and 5XFAD group received no treatment but were restrained to ensure exposure to a similar experimental condition. Cognitive function and memory were assessed with the Morris water maze and Y-maze tests. The amyloid β 40 (Aβ40) and amyloid β 42 (Aβ42) levels in the brain were evaluated by enzyme-linked immunosorbent assay; amyloid plaque deposition in brain tissue sections was detected by thioflavin-S staining; the expression of glial fibrillary acidic protein (GFAP), cluster of differentiation 11b (CD11b), brain-derived neurotrophic factor (BDNF), and choline acetyltransferase (ChAT) in the hippocampus and prefrontal cortex was analyzed by immunohistochemistry. Results: In the Morris water maze test, compared with the 5XFAD group, mice in the 5XFAD + GM group had a shorter escape latency and more target area crossings and spent more time in the target quadrant (P<0.05). In the Y-maze test, compared with the 5XFAD group, the number of training times of the 5XFAD + GM group was significantly decreased (P<0.05), together with more correct responses (P<0.05). Compared with the 5XFAD group, the levels of Aβ40 and Aβ42 in the brain tissue of the 5XFAD + GM group were significantly lower (P<0.05); in the hippocampus and prefrontal cortex, the total number of amyloid β plaque deposition were significantly lower (P<0.05); the expression levels of GFAP and CD11b were significantly reduced (P<0.05); and the expression levels of ChAT and BDNF were significantly increased (P<0.05).Conclusion: Grain-sized moxibustion at Xinshu (BL15) and Shenshu (BL23) greatly improves learning and memory functions, decreases the levels of Aβ40 and Aβ42, inhibits amyloid β plaque deposition, decreases the expression of GFAP and CD11b, and increases the expression of ChAT and BDNF in AD mice to inhibit the progression of AD.
4.Changes and significance of urine kidney injury molecule-1in liver transplant recipients concurrent with early-stage acute kidney injury
Wenhui LUO ; Hong ZHENG ; Jianjun ZHANG ; Rui SHI ; Jinzhen CAI ; Zhiqiang CHU ; Zhenyu FANG ; Dahong TENG ; Yuan SHI
Chinese Journal of Organ Transplantation 2012;33(5):287-290
ObjectiveTo investigate the changes and significance of urine kidney injury molecule-1(KIM-1) in liver transplant recipients concurrent with early-stage acute kidney injury (AKI).MethodsThe clinical data of orthotopic liver transplantation in 50 cases was retrospectively analyzed.According to the Acute Kidney Injury Network (AKIN) criteria and whether there was AKI for recipients after operation,the recipients were divided into AKI group (27 cases) and non-AKI group (23 cases).Serum creatinine (SCr),urine creatinine (UCr) and urine KIM-1were determined at the scheduled time points,and relationship between urine KIM-1and AK1was analyzed.By using the receiver operating characteristic (ROC) and the area under the curve (AUC),the diagnostic accuracy of urine KIM-1for AKI was evaluated.ResultsThe level of SCr reached the highest in two groups at 24 h postoperation,that in AKI group was significantly higher than in non-AKI group (P<0.05),and then gradually decreased to the preoperative level.The level of urine KIM-1was significantly increased immediately at the time of portal vein reperfusion in two groups,and that in AKI group reached the peak at 2nd h after portal vein reperfusion,significantly higher than in non-AKI group (P<0.01),which continued 12 h after the portal vein reperfusion.The results showed that the sensitivity was 82.6% and the specificity was 88.9% when the urine KIM-114.19 ng/g Ucr was taken as the cutoff to the diagnosis of AKI two h after portal vein repeffusion.ConclusionThe level of urine KIM-1is a reliable biomarker to diagnose AKI after liver transplantation.The intraoperative changes of urine KIM-1may be helpful to early prediction of AKI,for recipients with preoperative normal renal function.
5.Novel application and evaluation of superficial circumflex iliac artery perforator flap
Tinggang CHU ; Zhenyu TAO ; Xijie ZHOU ; Weiyang GAO ; Xinglong CHEN
Chinese Journal of Microsurgery 2023;46(2):179-184
Objective:Verstaile free superficial circumflex iliac artery perforator flap(SCIAPF) were adopted for various reconstructive scenarios, and its clinical effect and value was evaluated.Methods:Retrospective analysis was performed on 42 patients with tissue defects admitted in the Department of Orthopeadic of the Second Affiliated Hospital of Wenzhou Medical University from January 2015 to May 2019. Nine patients had injury in the foot, 8 in ankle, 8 in calf, 7 in forearm, 9 in hand, and 1 in the mouth. All of the defects were repaired by SCIAPF, including 28 single soft tissue defect wounds, 8 multiple soft tissue defect, and 6 composite defects. The size of soft tissue defect were 1.2 cm×1.8 cm-14.0 cm×20.8 cm. The size of flaps were 1.5 cm×2.0 cm-15.3 cm×22.3 cm. The patients entered follow up by outpatient clinic visit and telephone reviews to observe the survival of the flaps, functional recovery and complications.Results:In this series, there were 28 flaps, including 18 pedicled with superficia branch of superficial circumflex iliac artery, 2 pedicled with deep branch of superficial circumflex iliac artery, and 8 pedicled with 2 branches. Six were chimeric flaps. Among them, 4 flaps were iliac bone flaps with superficial branch of superficial circumflex iliac artery flaps, and 2 were superficial iliac circumflex artery flap with sartorius muscle flap. Eight cases were resurfaced with lobulated SCIAPF. Arterial anastomoses: end-to-side in 35 arteries and end-to-end in 7 arteries. Venous anastomosis: end-to-end in 27 veins and end-to-side in 15 veins. Venous return through superficial iliac circumflex vein in 25 flaps, through venae comitantes in 12 flaps and through both in 5 flaps. All flap donor sites were sutured directly. All flaps survived uneventfully except for one that compromised with end-to-side anastomotic dehiscence and bleeding, and survived after re-anastomosis. All flaps and donor sites healed primarily. During the follow-up of 6-24(mean, 11.5) months, the pliable flaps were ruddy in colour and soft in texture, without obvious bloatness and pigmentation. The donor site healed well with linear scars in 35 cases and mild scar hyperplasia in 7 cases. The donor hip function were normal. Three patients suffered a numbness of the thigh caused by intraoperative injury lateral femoral cutaneous nerve and it disappeared completely after 3 months.Conclusion:New applications of lobulated or chimeric SCIAPF, based on the SCIA vasculature or its branches, can meet most of the clinical repair requirement.
6.Research progress of anticoagulant drugs targeting coagulation factor Ⅺ
China Pharmacy 2024;35(17):2165-2170
Anticoagulants are the cornerstone of the prevention and treatment of thromboembolic diseases. Existing parenteral and oral anticoagulants achieve effective control of thrombosis by interfering with key aspects of the coagulation cascade reaction, but this is accompanied by an increased risk of bleeding. FⅪ inhibitors, anticoagulants targeting coagulation factor Ⅺ (FⅪ), can block the amplification phase of the thrombin generation process by inhibiting FⅪ, reducing thrombogenesis with less impact on normal hemostatic effects, and have become one of the most promising new anticoagulants. There are currently no marketed FⅪ inhibitor drugs, while FⅪ inhibitors in phase Ⅱ or phase Ⅲ clinical trials include 3 classes:antisense oligonucleotide, monoclonal antibody and small molecule inhibitors. In addition, most of the natural inhibitors and nucleic acid aptamers targeting FⅪ are under preclinical development. As new target drugs for anticoagulation therapy, FⅪ inhibitors are expected to become a safer and more effective therapeutic option, compensating for the limitations of current anticoagulants and providing patients with more effective thromboprophylaxis and therapeutic options while reducing the risk of bleeding.
7.Establishment and application of clinical pharmaceutical pathway of anti-infective treatment for high-risk populations of antibiotic-associated encephalopathy
Chunhui DU ; Yongli WAN ; Xiaojiao YANG ; Jin ZHOU ; Jianbo WANG ; Zhenyu ZHAO
China Pharmacy 2024;35(21):2690-2696
OBJECTIVE To establish a clinical pharmaceutical pathway of anti-infective therapy for high-risk populations of antibiotic-associated encephalopathy (AAE), and analyze its application effects. METHODS Clinical pharmacists developed the “AAE High-Risk Population Screening Form” and “Antibiotic AAE Risk Comparison Form” based on literature and expert opinions, and established the “Clinical Pharmaceutical Pathway of Anti-infective Treatment for AAE High-Risk Population” in our hospital. A prospective, non-randomized controlled study was conducted from May 2023 to April 2024, including 50 cases in the observation group and 50 cases in the control group among patients with pulmonary infections admitted to the Dept. of Internal Medicine in our hospital. The observation group was involved in the development of an anti-infective treatment following the clinical pharmaceutical pathway by clinical pharmacists, while the control group received routine anti-infective treatment by clinical physicians. The occurrence of AAE, the rational antibiotic drug use, and the effectiveness of initial anti-infective treatment in the two groups were observed, and the intervention measures and outcomes of AAE cases were summarized. RESULTS The anti-infective treatment clinical pharmaceutical pathway for AAE high-risk population was preliminarily established in our hospital. The analysis of the application effects showed that there was 1 case of AAE in the observation group and 8 cases in the control group, with a significantly lower incidence of AAE in the observation group than in the control group; the rational antibiotic drug use and the effectiveness of initial anti-infective treatment in the observation group were both significantly superior to those in the control group (P<0.05). Drug withdrawal and dressing change were the preferred effective intervention measures for AAE, and encephalopathy treatment drugs could be used as auxiliary measures for symptom relief. Timely and effective intervention was conducive to rapid symptom relief, with a total improvement rate of AAE of 88.89%. CONCLUSIONS The anti-infective treatment clinical pharmaceutical pathway for AAE high-risk population can effectively prevent the occurrence of AAE as well as contribute to promoting rational drug use and the effectiveness of initial anti-infection plans and strengthening treatment outcomes.
8.Interaction effect between vitamin D and gestational diabetes mellitus in the second trimester
Ziwen MA ; Xiaoying DING ; Liming CHU ; Yan ZHANG ; Aifeng ZHANG ; Yanjun ZHU ; Xun WANG ; Zhenyu XIE
Shanghai Journal of Preventive Medicine 2024;36(11):1094-1099
ObjectiveTo investigate the relationship between serum 25(OH)D and gestational diabetes mellitus in the second trimester (GDM), to analyze the interaction effect of key risk factors, so as to provide a basis for clinical personalized vitamin D supplementation. MethodsA total of 266 pregnant women who registered and took regular obstetric check-ups in Shanghai Pudong New Area Health Care Hospital for Women and Children from June to December 2022, were selected as the research subjects. According to the results of oral glucose tolerance test (OGTT), the subjects were divided into the GDM group (131) and control group (135). The level of serum 25(OH)D at the time of OGTT were detected and other clinical indicators were followed up. ResultsThe age, systolic blood pressure in early pregnancy, pre-pregnancy BMI, FPG, OGTT 1-hour and 2-hour glucose, GHb, HOMA-IR, TG, AST, Cr, D-D, FDP and SF at 35 weeks’ gestation of the pregnant women were higher in the GDM group than that of the pregnant women in the normal group, while gestational weight gain and serum 25(OH)D level were significantly lower than that of the pregnant women in the normal group. Serum 25(OH)D was negatively correlated with HOMA-IR and WBS’s, but positively correlated with TG and ALT. Serum 25(OH)D was non-linearly correlated with the risk of GDM in an inverted J-shape, and there was an interaction effect of advanced age, pre-pregnancy obesity and vitamin D deficiency on the risk of GDM. ConclusionVitamin D is non-linearly associated with the risk of GDM. The risk of GDM is significantly reduced when serum 25(OH)D level ≥30 ng∙mL-1.
9. Genotype-phenotype analysis of a homozygous familial hypercholesterolemia pedigree
Danying WANG ; Yanmin ZHANG ; Fengyu CHE ; Jianping CHU ; Liyu ZHANG ; Huan LI ; Bailing LIU ; Zhenyu YAO ; Yuwen ZHAO
Chinese Journal of Pediatrics 2020;58(2):101-106
Objective:
To analyze the genetic characteristics of a five generations pedigree with homozygous familial hypercholesterolemia (HoFH).
Methods:
Prospective study. Twenty family members included a proband diagnosed as familial hyperlipidemia at the cardiology Department of Xi′an Children′s Hospital in October 2018 were research object. Clinical data were collected. Genome DNAs were extracted. Whole exons sequencing was performed on the proband using target capture next generation sequencing. Candidate gene mutation sites identified by bioinformatics were verified by Sanger sequencing in the family members. The genotype-phenotype correlation of the pedigree was analyzed between heterozygous mutation carriers and non-carriers.
Results:
The proband was a 7-years and 10-month-old boy. He was born with a roundgreen bean size yellow skin protuberance in the skin of the coccyx. Since the age of 3-4 years old, xanthoma-like lesions with a diameter of 0.5-1.5 cm gradually appeared in the skin of bilateral elbow joints, knee joints and Achilles tendon. The height, weight and intellectual development of the child were the same as those of normal children at the same age. No similar xanthoma-like lesion was found in the other family members. The proband′s total cholesterol (TC) reached 18.16-21.24 mmol/L, and his low density lipoproteincholesterol (LDL-C) was 14.08-15.51 mmol/L. Carotid ultrasonography showed diffuse sclerotic plaques in bilateral carotid and vertebral arteries, and color Doppler echocardiography revealed aortic valve thickening and calcification. Gene testing identified that the proband carried a homozygous mutation C. 418G>A (p. E140K) in LDLR gene inherited from his parents who had a consanguineous marriage and carried a heterozygous mutation of LDLR-E140K, respectively.The TC, LDL-C and apolipoproteinB (ApoB) of LDLR-E140K gene heterozygous carriers ((8.40±0.13), (6.79±0.01) and (1.95±0.05) mmol/L, respectively) were significantly higher than those of non-carriers ((4.59±0.28), (3.35±0.39) and (0.86±0.10) mmol/L,