1.Anatomic and functional reconstruction of the spinal posterior column after resection of intraspinal neoplasms
Chinese Journal of Orthopaedic Trauma 2016;18(6):535-538
Objective To investigate the operative outcomes of anatomic and functional reconstruction of the spinal posterior column after resection of intraspinal neoplasms.Methods From January 2010 through October 2014,we treated 32 patients with intraspinal neoplasm in the spine.They were 18 men and 14 women,13 to 62 years of age (average,38 years).The neoplasm was detected in the cervical spine in 10 cases,in the thoracic spine in 14 and in the lumbar spine in 8.All cases received expansive open door laminoplasty via the posterior approach for resection of the intraspinal neoplasm,followed by replantation and titanium plate fixation for anatomic and functional reconstruction of the spinal posterior column.The neural functional recovery,spinal motion and sagittal diameter of the spinal canal before and after operation,spinal stability and graft fusion were observed.Results The patients were followed up for 3 to 23 months (average,13 months).All the intraspinal neoplasms were completely resected.The Frankel grading of neural functional recovery was improved differently in all the cases.By the final follow-ups,the spinal motion was normal in all the cases,without any significant limitation.Graft fusion and rigid internal fixation were achieved in all the cases.Short-term follow-ups revealed no signs of spondylolisthesis or spinal instability.At the final follow-ups,the 3-D CT reconstruction showed no significant shortening in the sagittal diameter of the same spinal canal before and after operation (P >0.05).Conclusions For intraspinal neoplasm in the spine,the whole vertebral lamina is opened or removed via the posterior approach to resect the neoplasm,followed by reduction of the vertebral lamina and mini titanium plate fixation to reconstruct the anatomy and function of the original spine.This is an ideal way to treat intraspinal neoplasms in the spine.
2.Serum Vitamin A is decreased in rheumatological diseases
Chinese Journal of Immunology 2017;33(7):1068-1071
Objective:To investigate the serum Vitamin A(sVit A) levels in Behcet′s disease(BD)and other rheumatological diseases.Methods: sVit A concentration was measured in BD(including 3 subtypes of eye BD,intestinal BD,and vascular BD),rheumatoid arthritis(RA),systemic lupus erythematosus(SLE),ankylosing spondylitis(AS),primary Sjogren′s syndrome(pSS) and adult onset Still disease(AOSD)and compared with healthy controls(HC).Results: The patients enrolled in this study was according with the epidemiological features;BD patients including its subtypes of eye BD,intestinal BD,and vascular BD patients all had a lower concentration of sVit A than HC(P<0.05),no statistical differences between the subtypes;RA,SLE,AS,pSS and AOSD had a lower concentration of sVit A than HC(P<0.05).Conclusion: Decreased serum Vit A levels might account for a common pathogenesis of various rheumatic diseases.
3.Application of peer education teaching methods in nutrition propaganda and education
Chinese Journal of Medical Education Research 2003;0(04):-
In order to fit new plot proposed by medical education reform,by integrating interrelated resources,the author introduced peer education into the whole process of nutrition propa-ganda and education to promote the development of the whole social health education.
4.Relationship between syndrome pattern of psoriasis and platelet thrombin sensitive protein and CD36 molecular expression.
Guan-yong LI ; Lei FEN ; Yu YIN
Chinese Journal of Integrated Traditional and Western Medicine 2004;24(5):456-457
Adolescent
;
Adult
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CD36 Antigens
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blood
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Diagnosis, Differential
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Female
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Humans
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Male
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Medicine, Chinese Traditional
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Middle Aged
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Platelet Activation
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Psoriasis
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blood
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diagnosis
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Thrombin
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metabolism
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Thrombospondins
;
blood
5.Primary Cutaneous T Cell Lymphoma (Gamma Delta subtype)
Yong Khee Guan ; Chye Chung Gan
The Medical Journal of Malaysia 2016;71(5):296-297
Primary cutaneous T-cell lymphoma gamma-delta subtype is
an extremely rare entity of all the cutaneous T-cell
lymphomas. Our case provides an insight on clinical
behavior and treatment response with feasible effective
combination chemotherapy. We believe this will be of great
interest to clinicians when facing this difficult clinical entity.
We present a case of a 66-year-old Malay man with a threeweek
history of rapidly growing skin nodules and plaques
which spread throughout his body. He was commenced on
combination chemotherapy gemcitabine, etoposide, and
carboplatin with near complete remission on completion of
second cycle but he defaulted. He relapsed within a month
and he progressed despite treatment with the same regime.
He was salvaged with fludarabine, cytarabine, and
vinblastine combination chemotherapy but progressed with
brain metastasis and died. However, more investigations
and studies need to be done in this relatively unknown rare
entity. A rare lymphoma registry might be of help to better
understand and treat similar conditions.
6.Longitudinal analysis of retinal nerve fiber layer thickness measurement by spectral-domain optical coherence tomography in normals and in glaucoma patients with or without progression
Xin-Hui, GUAN ; Li, LI ; Yong, LIANG
International Eye Science 2016;16(8):1504-1507
Abstract?AIM:To compare the loss of peripapillary retinal nerve fiber layer ( RNFL ) thickness measurements by spectral-domain optical coherence tomography ( SD -OCT ) in healthy individuals and glaucoma patients with or without progression.? METHODS: A total of 60 eyes, comprising 36 glaucomatous eyes with primary open angle glaucoma (POAG) and 24 healthy controls, were included in the study over a 2-year period.All eyes underwent at least 4 serial RNFL measurements performed by Cirrus OCT every half a year over a period of 2a.Visual field ( VF) testing was performed by using the Swedish interactive threshold algorithm( SITA) Standard 30-2 program of the Humphrey field analyzer within the same week as the optic disc/RNFL photography. By masked comparative analysis of VF test results and optic disc/RNFL photographs, the eyes were classified into non -progressive and progressive glaucoma cases. Longitudinal loss of RNFL thickness was compared.?RESULTS: The mean follow-up time was 2.1 ±0.3a. Seventeen from 36 subjects were identified as progressors. Mean rates of change in average RNFL thickness were significantly higher for progressors compared with nonprogressors (2.46μm/a vs.1.21μm/a;P <0.001 ). Inferior quadrant RNFL thickness were significantly correlated with MD reduction in glaucoma eyes with progression(r=0.423, P=0.03).? CONCLUSION: Longitudinal measurements of RNFL thickness using SD-OCT show a pronounced reduction in patients with progression compared with patients without progression.Inferior RNFL thickness parameters might be more important in discriminating eyes with progressive glaucomatous optic nerve damage.
7.Pancreatic portal hypertension: progress in diagnosis and treatment
Guangwen ZHOU ; Jiao GUAN ; Yong JIN
Chinese Journal of Hepatobiliary Surgery 2017;23(1):1-4
Pancreatic portal hypertension (PPH),which accounts for about 5% of extrahepatic portal hypertension cases,is mainly caused by pancreatic tumor,chronic pancreatitis and pancreatic ductal lithiasis.The pathogenesis and pathological characteristics of PPH are attributed to anatomical structure between splenic vein and pancreas.It is different from cirrhotic portal hypertension,PPH patients may present with less esophageal and gastric fundus varices,but more significant gastric body varices.The portal vein radiography is recognized as the golden standard for PPH diagnosis.There are two types of treatment modalities for PPH,symptomatic treatment and pathogenesis-based treatment.In clinically,we should take careful consideration into portal hypertension and primary disease,aim to resolve causes and manage complication concurrently.
8.Comparison of elasticity imaging and conventional ultrasound applied to diagnosis of benign and malignant breast tumors
Hongyong GUAN ; Yong ZHANG ; Huafeng CHEN
Chinese Medical Equipment Journal 2017;38(4):88-90
Objective To compare elasticity imaging and conventional ultrasound when applied to the diagnosis of benign and malignant breast tumors.Methods Totally 124 breast tumor patients (140 lesions) from some hospital were analyzed retrospectively,who were divided into a control group and an observation group according to ultrasound examination ways.The control group involved in 60 patients with 66 lesions undergoing conventional ultrasound examination,and the observation group had 64 patients with 74 lesions undergoing elasticity imaging.Pathological findings were considered as gold standard,and the two groups were compared on accuracy,specificity and sensitivity.Results Pathological detection found the accuracy,specificity and sensitivity of the malignant tumor in the control group were 85.00%,84.78% and 84.85% respectively,and the ones of the malignant tumor in the observation group were 95.83%,96.00% and 95.95% respectively.The two groups had significant differences between the accuracies,specificities and sensitivities (P<0.05).Conclusion Elasticity imaging describes the size,shape,number,margin and etc of the breast tumor,and thus can enhance the accuracy,specificity and sensitivity for diagnosing breast tumors.
9.Telomere,telomerase,cell of immortalization and aging
Yong TENG ; Yunyu HU ; Yucheng GUAN
International Journal of Biomedical Engineering 2008;31(2):106-109
Normal cells have limited proliferation ability.After certain cycles of proliferation,they will lose the response ability to growth factors and finally cease division and start the course of aging. In current opinion,lacking of the terminal end of a chromosome(telomere)is the cause for cells to loss the proliferation ability and leads cells to aging and death.The human telomerase catalytic subunit 1(hTERT)can activate telomemse which prolong DNAs of the terminal end of chmmosome and help cells gain genomic stabilization.The discoveries of telomere,telomerase and hTERT provide new idea for studying of cell aging and the findings are also applied in the establishment of immortal cell line. Also they may play an important role in the studv of biological feature of seed cell in tissue engineering and the establishment of cell bank.