Publications by authors named "Shangli Liu"

7 Publications

  • Page 1 of 1

The complete chloroplast genome of (Theaceae).

Mitochondrial DNA B Resour 2020 28;5(3):2228-2230. Epub 2020 May 28.

Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China.

is an endangered species. This species contains two varieties. Here, we report on the chloroplast genomes of var. from Fangcheng (GenBank accession MT157617) and Nanning (MT157618), as well as one sample of . var. (MT157619) from Nanning. The total chloroplast genomes of var. Fangcheng and Nanning samples are 156,596 bp and 157,567 bp in length, respectively. var. (MT157619) genome is 157,407 bp in length. The three samples possess GC contents of 37.3%, 128 genes, comprising 86 protein-coding genes, 34 tRNA genes, and 8 rRNA genes.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1080/23802359.2020.1768957DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7510655PMC
May 2020

Application of Laparoscopic Lumbar Discectomy and Artificial Disc Replacement: At Least Two Years of Follow-Up.

Spine (Phila Pa 1976) 2016 Oct;41 Suppl 19:B38-B43

*Department of Spinal Surgery, the First Affiliated Hospital of University of South China, Hengyang, HuNan Province, China †The Orthopaedic Department of Sun YiXian Hospital of Zhongshan University, Guangzhou, Guangdong Province, China.

Study Design: This prospective observational study included 22 patients who were diagnosed with symptomatic degenerative disc disease treated via artificial disc replacement (ADR) with a laparoscopic technique.

Objective: The current study aimed to assess the safety and efficacy of ADR using a laparoscopic technique for lumbar disc herniation.

Summary Of Background Data: Symptomatic degenerative disc disease is the major cause of low back pain with lumbar segmental instability. ADR has increased in popularity as an alternative treatment for lumbar disc herniation. However, the traditional approach to spinal surgery carries the risk of catastrophic bleeding from injury to major vessels, as well as iatrogenic injury to the viscera and associated structures. Therefore, laparoscopic lumbar discectomy and ADR may represent a useful alternative.

Methods: Twenty-two patients (8 males and 14 females) who were diagnosed with symptomatic degenerative disc disease were included in this study. Seven cases involved the L4/5 level, and 15 cases involved the L5/S1 level. All patients were ineffective after at least 6 months of conservative treatments; all patients were informed of the surgery before the operation and provided consent. Three-dimensional computed tomographic angiography (3D-CTA) of the iliac great blood vessels was completed before the surgery. All surgical procedures were performed under a laparoscope. All patients were followed up.

Results: All surgeries were successfully completed. The average operation time was 120 minutes (range 110-150 min), and the average hemorrhage was 145 mL (range 80-360 mL). All cases underwent X-rays at 3 days, 3 months, 6 months, 1 year, and the final postoperative follow-up. The outcome indicated that there was no mobilization, displacement, or subsidence in all patients with the exception of one case with prosthesis migration. The follow-up time was 43.8 months (range 24-64 months). The mean visual analog scale (VAS) and Oswestry scores were decreased postoperatively. The mean improvement rate of the VAS score was 73.5%.

Conclusion: Lumbar ADR using a laparoscope represents a novel, minimally invasive treatment for symptomatic degenerative disc disease and severe lumbar discogenic pain.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1097/BRS.0000000000001820DOI Listing
October 2016

[Application of allograft and autologous bone graft in posterolateral lumbar fusion].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2009 May;23(5):524-6

Department of Orthopedics, the Second Affiliated Hospital of Sun Yat-sen University, Guangzhou Guangdong, 510120, P.R. China.

Objective: To evaluate the clinical effect of local autogenous bone chips extended with allogeneic bone grafts in the posterolateral lumbar fusion.

Methods: From March 2005 to April 2007, 22 cases which underwent posterolateral lumbar fusion with allograft bone mixed with local autograft bone were analyzed retrospectively. The postoperative temperature, drainage flow and healing time of the incision were analyzed; postoperative lumbar pain was evaluated by visual analog scale (VAS) and JOA score; the postoperative efficacy was assessed by MacNab criteria and Oswestry disability index (ODI); the fusion rate was defined by Jorgenson fusion criteria.

Results: All cases were followed up for 17-35 months with an average of 21 months, the wound all healed by first intention; no red swelling, exudation and infection occurred. The excellent and good rate was 81.8% for JOA score (excellent in 4 cases, good in 14 cases, fair in 4 cases), 77.3% for MacNab criteria (excellent in 4 cases, good in 13 cases, fair in 5 cases) and 90.9% for ODI index (excellent in 3 cases, good in 17 cases, fair in 2 cases). The postoperative X-ray fusion rate within 1 year was 90.9%.

Conclusion: Allograft bone mixed with local autograft bone can achieve good efficacy and fusion rate in posterolateral lumbar fusion.
View Article and Find Full Text PDF

Download full-text PDF

Source
May 2009

Age at onset-dependent presentations of premature hip osteoarthritis, avascular necrosis of the femoral head, or Legg-Calvé-Perthes disease in a single family, consequent upon a p.Gly1170Ser mutation of COL2A1.

Arthritis Rheum 2008 Jun;58(6):1701-6

Second Affiliated Hospital and Center for Genome Research, Sun Yat-Sen University, Guangzhou, China.

Objective: To identify the genetic abnormality responsible for osteoarthritis (OA), avascular necrosis (AVN) of the femoral head, and Legg-Calvé-Perthes disease in a single family, and to determine factors responsible for the distinct phenotypes manifested by different family members.

Methods: Forty-two members of a 5-generation family were recruited and investigated. Diagnosis was made by independent orthopedic surgeons and radiologists. Histopathologic changes of the diseased tissue were examined. Linkage analysis was performed with markers spanning the COL2A1 locus. Haplotypes were constructed and mutation of the gene was detected. Structures of the wild-type and mutant proteins were modeled.

Results: Sixteen affected members were identified (5 with isolated precocious hip OA, 6 with AVN of the femoral head, and 5 with Legg-Calvé-Perthes disease). A p.Gly1170Ser mutation of COL2A1 cosegregated with the 3 diseases and was absent in controls. Of note, age at onset in relation to the closure status of the femoral head epiphysis was associated with the diseases, with Legg-Calvé-Perthes disease presenting prior to closure (at ages 6-14 years), AVN of the femoral head presenting during closure (at ages 15-18 years), and precocious OA of the hip presenting after closure (at ages 21-34 years). Molecular modeling predicted that the serine-to-glycine substitution loosens the helical structure of the protein.

Conclusion: The p.Gly1170Ser mutation of COL2A1 in the family described is responsible for pathology confined to the hip joint, which presents as isolated precocious hip OA, AVN of the femoral head, or Legg-Calvé-Perthes disease. Age at onset in relation to closure of the femoral head epiphysis appears to be a critical factor in determining disease pattern.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1002/art.23491DOI Listing
June 2008

Pedicle screw fixation of the cervical spine: guidance by computed tomography.

Clin Orthop Relat Res 2007 Sep;462:99-104

Department of Orthopedics, The Second Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China.

This is an anatomic, preclinical study using computed tomography and computerized simulation to describe the morphologic features and ideal screw insertion trajectories for cervical pedicles in the southern Chinese population. The morphologic features of the pedicle of vertebrae (C3-C7) from 20 human cadaver spines were evaluated with computed tomography and with manual measurements. There was no difference between the two data sets. The topography of the cervical pedicles was recreated graphically, calculating the safe range of the insertion angle with and without consideration of the pedicle screw diameter. Neglecting the diameter of the screw, the average safe ranges of the insertion angle at each cervical level (C3-C7) in the transverse plane were 18.7 degrees , 20.4 degrees , 22.4 degrees , 22.5 degrees , and 27.6 degrees , respectively, and in the sagittal plane 27.6 degrees , 30.3 degrees , 27.7 degrees , 29.0 degrees , and 34.9 degrees , respectively. Including the diameter of the 3.0-mm screw, the safe ranges narrowed to 7.3 degrees , 8.6 degrees , 11.0 degrees , 13.1 degrees , and 15.5 degrees in the transverse plane, and 16.4 degrees , 18.7 degrees , 16.4 degrees , 18.3 degrees , and 23.1 degrees in the sagittal plane. We think computed tomography measurements can provide individual quantitative data for transpedicle screw fixation in the cervical spine.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1097/BLO.0b013e3180ebe4e5DOI Listing
September 2007

The protective effects of incadronate on inflammation and joint destruction in established rat adjuvant arthritis.

Rheumatol Int 2006 Jun 20;26(8):732-40. Epub 2005 Oct 20.

Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 West Yanjiang Road, Guangzhou, 510120, China.

The effects of a new generation bisphosphonate, incadronate, in established adjuvant arthritis rats were evaluated according to the arthritis index, hind paw volume, and radiological and histopathological examinations. Incadronate suppressed the radiological and histopathological changes of hind paws, as well as the joint swelling in a dose-dependent manner. In contrast, the arthritis control rats showed drastic joint inflammation, marked destruction of bone and articular cartilage. The remains of articular cartilage lost Safranin O staining, and were attached with numerous TRAP-positive multinuclear cells. Some of resorption lacunas could be seen at the cartilage matrix nearby the TRAP-positive multinuclear cells. As regards the chondroprotective effects of bisphosphonates, we speculate that it is probably concerned with the inhibition of the chondroclasts. These data indicate that bisphosphonates may be a class of effective agent that can be considered for treatment of various arthritic conditions, including human rheumatoid arthritis.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00296-005-0061-8DOI Listing
June 2006

Efficacy of three methods of internal fixation on femoral neck fracture.

Chin J Traumatol 2002 Apr;5(2):121-2

Department of Orthopedics, Second Hospital of Shenzhen, Shenzhen 518029, China.

View Article and Find Full Text PDF

Download full-text PDF

Source
April 2002