Shicheng He

Southeast University

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Jin‐He Guo

Zhongda Hospital Southeast University

Gao‐Jun Teng

Zhongda Hospital Southeast University

Gang Deng

Third Xiangya Hospital

Guangyu Zhu

Zhongda Hospital Southeast University

Hai‐Dong Zhu

Zhongda Hospital Southeast University

Zhu Guangyu

Beijing University of Chinese Medicine

Wen Fang

Guizhou Provincial People's Hospital

Qingzhu Gao

Institute of Environment and Sustainable Development in Agriculture

Fang Wen

Nanjing University of Chinese Medicine

Guozheng Hu

Institute of Environment and Sustainable Development in Agriculture

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Zhongda Hospital Southeast University

Chinese Academy of Sciences

Chongqing University

Chinese Academy of Agricultural Sciences

Zhejiang University

Southeast University

Shanghai Jiao Tong University

Central South University

Huazhong University of Science and Technology

Nanjing Medical University

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Value of intraosseous venography in percutaneous vertebroplasty for treatment of symptomatic vertebral hemangiomas

Shicheng He Gao‐Jun Teng Wen Fang Gang Deng Jin‐He Guo

Objective To evaluate the clinical efficacy of percutaneous vertebroplasty (PVP) in patients with symptomatic vertebral hemangiomas and determine whether prior intraosseous venography decreases extravertebral leakage of PMMA and improves clinical outcomes in these procedures.Methods Retrospective review was conducted on 45 consecutive patients with 53 symptomatic vertebral hemangiomas associated with chronic pain (all cases) or paralysis caused by spinal cord compression (1 case) or vertebral compression fractures (3 cases) treated with PVP at our institution to define two populations.Group A consisted of 27 vertebral hemangiomas in 23 patients who underwent intraosseous venography before injection polymethylmethacrylate (PMMA).Group B consisted of 26 vertebrae in 22 patients who underwent injection PMMA without prior venography.CT was done 1 to 3 days after PVP to observe PMMA distribution in vertebrae and whether leakage.Clinical outcomes,included pain relief,leakage of PMMA,volume of PMMA injected,expense and X-ray exposure times in each vertebral body,were compared in the two groups by using x2 or t test.Results No significant difference was seen between the groups with respect to age,sex,the number of treated vertebrae,or preprocedural degrees of pain.The successful rate of technique of PVP was 100%.The mean volume of PMMA injected in each vertebra was 3.96 ml.CR,PR and NR was obtained respectively 84.5%,13.3% and 2.2% during 6 months to 5 years of follow-up expect one case had unrelieved pain in group A.At 6 months after PVP,22 cases (95.7%) in group A and 22 cases (100%) in group B achieved adequate pain relief (P = 0.323).6 vertebrae (6/27) in group A and 2 vertebrae (2/26) in group B with asymptomatic leakage of PMMA were demonstrated by CT (P =0.140).The mean volume of PMMA injected in each vertebra was 3.70 ml in group A and 4.23 ml in group B (P =0.157).The mean expense of each vertebra was (￥)7.24 × 103 in group A and (￥)5.84 × 103 in group B (P=0.000),the mean decreases were (￥)1.4 × 103 in group B than group A.The mean X-ray exposure times on each vertebral body was 13.28 minutes in group A and 8.78 minutes in group B (P =0.000),the mean decreases were 4.5 minutes in group B than group A.Conclusions PVP is an effective and safe procedure for treating symptomatic vertebral hemangiomas.Prior intraosseous venography does not significantly improve the effectiveness or safety of PVP for vertebral hemangiomas performed by qualified,experienced operators,on the other hand,it increases the expense and X-ray exposure times of PVP. Key words: Vertebroplasty; Polymethylmethacrylate; Vertebral hemangiomas; Intraosseous venography

Percutaneous Vertebroplasty

Venography

Vertebra

Clinical efficacy

Back Pain

10.3760/cma.j.issn.0376-2491.2010.45.007

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Effects of grazing and simulated warming on plant community structure and productivity of alpine grassland in Northern Xizang, China

Chinese Journal of Plant Ecology (2019)

Hongbao Wu Qingzhu Gao Hasbagan Ganjurjav Yu Li Yulong Yan

10.17521/cjpe.2018.0288

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ANVCFV Score System: Assessment for Probability of New Vertebral Compression Fractures after Percutaneous Vertebroplasty in Patients with Vertebral Compression Fractures.

PubMed (2015)

Bin-Yan Zhong Chun-Gen Wu Shicheng He Hai‐Dong Zhu Wen Fang

Percutaneous vertebroplasty (PVP) is widely used for the treatment of painful vertebral compression fractures (VCFs). However, new VCFs occur frequently after PVP.We aim to establish an objective risk score system to assess the possibility of new vertebral fractures in patients with VCFs undergoing PVP.This study was a retrospective study, and it was approved by the Institutional Review Board of our 2 institutions.This study consists of patients from 2 large academic centers.Patients with VCFs who underwent their first PVP and met the inclusion criteria between January 2007 and December 2013 at Hospital A (training cohort) and Hospital B (validation cohort) were included. In the training cohort, the independent risk factors for new VCFs after PVP were identified by multivariate stepwise backward Cox regression analysis from the risk factors selected by univariate analysis and Harrell's C-statistics and used to develop the score system (assessment for new VCFs after PVP [ANVCFV]) to predict the probability of new VCFs.In total, 397 patients (training cohort: n = 241; validation cohort: n = 156) were included in this study. In the training cohort, the ANVCFV score was developed based on 5 independent risk factors for the new VCFs after PVP, including lower computed tomography (CT) values, pre-existing old VCFs, intradiscal cement leakage, more than one vertebra treated, and superior or inferior marginal cement distribution in the vertebra. The patients were divided into 2 groups by the ANVCFV score of -1.5 to 8.5 vs. > 8.5 points in the probability of new VCFs (median fracture-free time: 1846 vs. 732 days; P < 0.001) in the training cohort. The accuracy of this score system was 77.4% for the training cohort and 85.3% for the validation cohort.The main limitations of this study are that it is a retrospective study and that there is a significant difference of the treated vertebrae of PVP per session between the 2 cohorts.Patients who underwent their first PVP with an ANVCFV score > 8.5 points may exhibit an increased chance of suffering from new VCFs.

Percutaneous Vertebroplasty

Vertebral Compression Fracture

Vertebra

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Reclamation enhances the ratio of soil to ecosystem respiration under warming in an alpine meadow

Ecosystem Health and Sustainability (2024)

Zheng Li Liang Yan Yong Zhang Guozheng Hu Shicheng He

The construction of cultivated grasslands can increase grass production but also pose a threat to soil carbon storage, and it still remains unclear how construction of cultivated grasslands affects the components of ecosystem respiration (ER) toward a warming climate. Therefore, we conducted a 5-year (2012 to 2016) manipulative warming experiment in an alpine meadow and a cultivated grassland on the Qinghai–Xizang Plateau to explore the separate and interactive effects of warming and reclamation on soil respiration (SR), crop respiration (CR), ER, and the ratio of SR to ER (SR/ER). The plant height, coverage, aboveground production, SR, ER, CR, and SR/ER were measured. We found that warming increased the 5-year mean SR by 61.1% and 63.4% in the alpine meadow and the cultivated grassland, respectively. The 5-year mean SR/ER was increased by warming for the alpine meadow (38.7%) and the cultivated grassland (38.0%). Under warming, reclamation increased the 5-year mean SR/ER by 15.0%. Reclamation increased the sensitivity of SR and CR to warming, resulting in the increase in SR/ER under warming in the cultivated grassland. Overall, our results indicated that reclamation can increase the contribution of SR to the ecosystem carbon emission under warming and is detrimental to the storage of soil carbon in the alpine meadow especially toward a warming climate. Therefore, despite the increase in production by the construction of cultivated grasslands, the increase in carbon emission under warming by reclamation should attract attention.

Ecosystem respiration

Soil respiration

10.34133/ehs.0178

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Study of animal experiment and clinical application on evaluating the curative effect after chemoembolization of liver tumors by using of DWI magnetic resonance

Journal of Southeast University (2006)

Shengqi Wang Yang Xiao-qing Gang Deng Shicheng He Jin‐He Guo

Objective To evaluate the curative effect of chemoembolization of liver tumors by using of diffusion-weighted imaging(DWI) magnetic resonance(MR).Method 6 clinic liver tumor patients and 2 rabbits with VX2 tumor in liver first underwent routine T_(1)-weighted and T_(2)-weighted imaging of the whole liver,and then underwent DWI by using of 2 different b factors under breath-hold or general anaesthesia.Results By using of different b factors,chemoembolization postoperative apparent diffusion coefficient(ADC)_(focus)/preoperative ADC_(focus)≥110%,the prognosis was better,while the value110%,the prognosis was worse;postoperative ADC_(focus)ADC_(liver)/ preoperative ADC_(focus)ADC_(liver)≥110%,the prognosis was better,while the value110%,the prognosis was worse.Conclusion It seems that DWI and ADC value can evaluate the curative effect after chemoembolization of liver tumors.

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A phenomenological model of pulsatile blood pressure-affected degradation of polylactic acid (PLA) vascular stent

Medical & Biological Engineering & Computing (2024)

Shicheng He Wanling Liu Lingling Wei Qiang Chen Zhiyong Li

Degradation

Pulsatile flow

Polylactic Acid

10.1007/s11517-023-02998-6

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Unexpected suppressive fungal diversity and stimulative soil carbon loss under soil acidification in an alkaline grassland

Functional Ecology (2024)

Tongshuo Bai Shicheng He Yitian Li Jun Deng Fan Sang

Abstract Soil acidification caused by acid deposition and N fertilization can significantly affect the composition and activity of microbial communities in acidic soils. However, whether and how acidification affects soil microorganisms and microbial‐mediated carbon (C) dynamics in alkaline soils are less known. Based on a 7‐year (2016–2023) acid addition experiment in an alkaline grassland (pH > 8) on the Loess Plateau in Northwest China, we examined the effects of soil acidification on soil fungal and bacterial communities and their C metabolism. Unexpectedly, our results showed that soil acidification mainly reduced fungal diversity, rather than bacterial diversity, possibly because acidification led to soil NH 4 + accumulation and decreased plant diversity. Also, soil acidification reduced forb but increased grass biomass, and enhanced root production and turnover rate. Laboratory incubation experiments showed that changes in the microbial community and soil properties jointly promoted microbial decomposition of soil organic C (SOC), with more promotion for the decomposition of labile C (i.e. glucose) (+68.4%) than recalcitrant C (i.e. tannin) (+29.1%). Synthesis . Soil acidification reduced fungal diversity and stimulated SOC decomposition in an alkaline grassland. Given that pH decline can also accelerate soil inorganic C dissolution and carbonate‐derived CO 2 release, these results highlight that soil acidification can exacerbate C loss in the alkaline soils over the long term. Read the free Plain Language Summary for this article on the Journal blog.

Alkali soil

Soil carbon

10.1111/1365-2435.14685

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Percutaneous lumbar diskectomy using rotating pliers system

Journal of interventional radiology (2003)

Shicheng He

Objective To explore the feasibility of using rotating pliers system for treating lumbar disc herniation with concomitant prolapse.Methods Ex vivo incision experiment was performed on 8 lumbar discs of 2 pigs using rotating pliers. Clinical application included 12 patients of lumbar disc herniation shown by CT or MRI. 40% herniations excerted enough pressure on dural sac with concomitant prolapse of different degrees. The symptoms and image findings were concordant. The herniated nucleus pulposus were resected using rotaing pliers system, MacNab standard was applied for the clinical evaluation. Results The ex vivo experiments and clinical application were successful. Clinical application showed CR in 4 patients (33.3%), PR in 5 patients (41.7%) and NR in 3 patients (25.0%). CT demonstrated the herniated disk tissue retraction of different degrees in CR and PR patients, together with decrease in CT attenuation number, ranging from 8 30 HU, 18±5HU in average but no changes in NR patients.Conclusions Percutaneous lumbar diskectomy is safe and effective to treat lumbar disc herniation with concomitant prolapse by using rotating pliers systems and thus extending the PLD application.

Concomitant

Diskectomy

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The analysis of characteristics of patients with vertebral fracture and percutaneous vertebroplasty(PVP)

Shicheng He

Objective To study clinical characteristics of patients who suffered from vertebral fracture and had percutaneous vertebroplasty operation.Methods 309 cases with vertebral fracture and percutaneous vertebroplasty operation were reviewed from May,2006 to June,2009.Information was got through case evaluation,including sex,age, diagnosis,induced factors of fracture,history of chronic disease,history of operation,and medication treatment.Results Among the 309 patients,there were 181 cases of osteoporotic vertebral fractures,average age 72.42±8.49 years old,101 cases of vertebral metastases,average age 60.08±12.62 years old,6 cases of vertebral hemangioma,one case of spinal benign lesion,18 cases of trauma.The female vertebral fracture patients were more than those of male, and T_(12),L_1,L_2 were the most frequent sites of vertebral fracture.The chronic diseases were complicated,for example, hypertension,diabetes mellitus,rheumatoid arthritis,and using of glucocorticoids.Falls were the main induced factors of vertebral fracture.In the duration of osteoporosis,patients often suffer from multi-vertebral fracture,and operations more than once were needed.Conclusion It is important to prevent and treat the risk factors of osteoporosis,in order to reduce the occurrence of vertebral fracture.

Percutaneous Vertebroplasty

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A Simplified Method of Opacifying and Mixing Acrylic Cement for Percutaneous Vertebroplasty: A Clinical and In Vitro Study

CardioVascular and Interventional Radiology (2005)

Gao‐Jun Teng Shicheng He Gang Deng Jin‐He Guo Fang Wen

Percutaneous Vertebroplasty

Bone cement

Polymethyl methacrylate

10.1007/s00270-004-0126-1

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Citations (9)