2.Transforming growth factor-? and primary open-angle glaucoma
Qi XU ; Yinping LIU ; Lin LIU
Academic Journal of Second Military Medical University 1999;0(12):-
As a multifunctional cytokine,transforming growth factor-?(TGF-?) has many biological effects. It controls the extracellular matrix synthesis in trabecular meshwork cells and enhances the contractility of trabecular cells,which may increase the resistance of aqueous outflow. It can also promote the formation of the bleb scarring after filtration surgery. TGF-? is likely to play an important role in the pathogenesis and mechanism of primary open-angle glaucoma (POAG). The inhibitions of TGF-? may be used as an auxiliary agent for inhibiting the formation of the bleb scarring after filtration surgery.
3.Adrenoceptor and endothelin receptors of artery isolated from colonic cancer
Guangyu QI ; Jie LI ; Lin YANG ; Hao LIU ; Jing LIU
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(04):-
Objective To study the contraction of artery in colonic cancer.Methods Arteries in the cancer part and the cancer ambient part of patients with colonic cancer,the concentration-contractile curves induced by the noradrenaline(NA),sarafotoxin 6c(S6c) and endothelin-1(ET-1) in cumulative application were recorded by myograph.Results The E_(max) and pD_(2)of normal colonic artery contraction induced by NA were(97?19)% and(5.94)?0.17.The E_(max)and pD_(2) of contraction in colonic cancer artery was lower than that in cancer ambient artery(P0.05)).Conclusion The ?-adrenoceptor and ET_(A) receptor are main receptors mediating contraction in colonic cancer artery.
4.Clinical features of ocular manifestations of 93 AIDS patients in Urumqi
Gang, LIU ; Qi, LIU ; Lin, DING ; Yong, SUN
International Eye Science 2014;(10):1911-1913
AIM: To investigate the clinical features of acquired immune deficiency syndrome ( AIDS) patients associated ocular diseases in Urumqi and the relationship between ocular fundus manifestations and CD4+T cell count.
METHODS: The fundus of 93 AIDS patients were examined by indirect ophthalmoscopy. The clinical symptoms and CD4+T cell count of those patients with fundus changes were analyzed.
RESULTS: Thirteen patients were found having fundus changes which occurred in one eye of 4 patients and two eyes of 9 patients, respectively, and the total detection rate was 14. 0%. Seven patients had vision changes, and the main clinical features of retinal lesion were cotton wool spot and hemorrhage of retina. Four patients were diagnosed as retinitis with cytomegalovirus ( CMV ) infection and 9 patients were diagnosed as HIV related retinopathy diseases. Seven patients among 37 patients with CD4+T cell count ≤100cell/μL had fundus changes related AIDS, and the detection rate was 18. 9%; while 6 patients among 56 patients with CD4+T cell count >100cell/μL had fundus changes related AIDS, and the detection rate was 10. 7%. There was statistical difference between the two detection rates (P<0. 05).
CONCLUSION: No specificity was found of those patients with the clinical manifestation of HIV- related retinopathy, and those patients are easy to be missed diagnosis. A number of AIDS patients have fundus changes without any vision changes. Therefore, it is very useful for AIDS patients to be carried out the routine fundus examination for the early diagnosis and treatment.
5.Gene cloning and bioinformatics analysis of new gene for chlorogenic acid biosynthesis of Lonicera hypoglauca.
Shu-lin YU ; Lu-qi HUANG ; Yuan YUAN ; Lin-jie QI ; Da-hui LIU
China Journal of Chinese Materia Medica 2015;40(5):863-867
To obtain the key genes for chlorogenic acid biosynthesis of Lonicera hypoglauca, four new genes ware obtained from the our dataset of L. hypoglauca. And we also predicted the structure and function of LHPAL4, LHHCT1 , LHHCT2 and LHHCT3 proteins. The phylogenetic tree showed that LHPAL4 was closely related with LHPAL1, LHHCT1 was closely related with LHHCT3, LHHCT2 clustered into a single group. By Real-time PCR to detect the gene expressed level in different organs of L. hypoglauca, we found that the transcripted level of LHPAL4, LHHCT1 and LHHCT3 was the highest in defeat flowers, and the transcripted level of LHHCT2 was the highest in leaves. These result provided a basis to further analysis the mechanism of active ingredients in different organs, as well as the element for in vitro biosynthesis of active ingredients.
Chlorogenic Acid
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metabolism
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Cloning, Molecular
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Computational Biology
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Gene Expression Regulation, Plant
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Lonicera
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chemistry
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classification
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genetics
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metabolism
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Molecular Sequence Data
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Phylogeny
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Plant Proteins
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chemistry
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genetics
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metabolism
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Protein Structure, Secondary
6. Impact of compatibility ratios of rhubarb-gardenia herbal pair and extraction techniques on anthraquinone dissolution
Chinese Traditional and Herbal Drugs 2017;48(2):283-287
Objective: To investigate the impact of compatibility ratios of rhubarb-gardenia herbal pair and extraction techniques on anthraquinone dissolution, and to explain the bases of different compatibility of rhubarb-gardenia in the prescriptions of Chinese materiamedica from chemical composition. Methods: Anthraquinones were extracted from rhubarb-gardenia herbal pair of different compatibility ratios by water decoction method and ultrasonic extraction with alcohol. Free and total anthraquinones were analyzed by HPLC and the contents of binding anthraquinones were equal to the total minus the free anthraquinones. Results: The contents of various types of anthraquinones extracted by water decoction method increased and binding anthraquinone content increased significantly after rhubarb was compatible with gardenia. This suggested that gardenia was benefit for binding anthraquinone dissolution. Decocting order (Rhubarb cooked first, last, and at the same time) also affected the content of anthraquinones in water decoction method. Separate ultrasonic extraction was benefit for total and free anthraquinone dissolution. Separate ultrasonic extraction was benefit for total and free anthraquinones dissolution. Simultaneous ultrasonic extraction was benefit for binding anthraquinone dissolution. The extraction effect of ultrasonic method was significantly higher than that of water decoction method. Conclusion: Rhubarb-gardenia herbal pair in different compatibility proportion plays different role in different prescriptions because of the different composition and content of anthraquinones,which proves the rationality of the classic formula.
7.Surgical treatment of spinal tuberculosis in older patients
Wen LI ; Zhixiong LIN ; Qi LIU ; Weijie LU ; Nansheng YU
Chinese Journal of Orthopaedics 2011;31(1):55-60
Objective To discuss perioperative features, operative approach and surgical effects of spinal tuberculosis in older patients. Methods Retrospective analysis was conducted to analyze the clinical data of 45 patients with spinal tuberculosis ranging in age from 61 to 78 years (average, 67 years). The lesion was located in thoracic vertebrae in 9 patients, thoracolumbar vertebrae in 14, lumbar in 16, and lumbosacral in 6. Preoperative Frankel grades were B in 7 cases, C in 21, D in 11 and E in 6. Among them, 21 had cardio-cerebrovascular disease, 10 had diabetes mellitus. With preoperative medicine and chemotherapy for 2-3 weeks, all patients were treated surgically. The surgical procedures included: 1) Posterior focus debridement, bone grafting and one-stage posterior transpedicular screw system fixation in thoracic vertebrae (T2-T7). 2) Anterior debridement, bone grafting and one-stage posterior transpedicular instrumental fixation in lumbosacral vertebrae (L5-S1). 3) Anterior focus elimination, bone grafting and one-stage anterior plate fixation in the other vertebrae. Results Forty-five patients were followed up for 24 to 40 months, with the average of 28.5 months. No severe complication occurred during and after operation. Forty-four cases had recovered and 1 recurred. Spinal fusion occurred 12-18 months after operation. Frankel neurological grades improved significantly. Conclusion With the effective management of comorbidities in perioperative period,the elderly could tolerate surgical treatment. The appropriate approaches, thorough debridement and reasonable bone grafting with internal fixation are key to therapeutic success.
8.Primary testicular non-Hodgkin's lymphoma
Zhiyong CHEN ; Lin QI ; Jiansong WANG ; Yu LIU ; Zhengyan TANG
Chinese Journal of Urology 2009;30(5):351-353
Objective To summarize the clinical presentation, pathology features, and treat-ment principle for primary testicular non-Hodgkin's lymphoma. Methods Twelve patients were di-agnosed with primary testicular lymphoma. The mean age was 62 years (36-78). Of the patients, unilateral primary testicular tumors were found in 11 cases and bilateral tumors were found in 1 case. All cases had swollen testes, 3 cases had mild pain and 1 had low-grade fever. Ultrasonic examination detected solid mass in all 12 cases. CT scan revealed retroperitoneal enlarged lymph nodes in 3 cases. Nine patients were diagnosed with disease of stage Ⅰ E, 2 of stage Ⅱ E, and 1 of stage Ⅲ E. All of the patients underwent radical orchiectomies. Postoperative treatment included: CHOP chemotherapy for 10 cases, radiotherapy after chemotherapy for 5 cases, and surgery alone for 2 cases. Results Post-operative pathology results were non-Hodgkin's lymphoma in all cases. One patient lost in follow up, one died within 2 years because of other disease. The 1, 3 and 5 year actual survival rates were 82% (9/11) ,40%(4/10),20% (2/10), respectively. The relapsed organs included contralateral testis(3/ 11), central nervous system(3/11), liver(1/11)and retroperitoneal lymph node(1/11). Conclusions The prognosis of the primary testicular non-Hodgkin's lymphoma is very poor. Chemotherapy must be used after surgery for any stage. Stage Ⅰ E and Ⅱ E patient should be treated by surgery combined with radiotherapy and chemotherapy. Contralateral testis should be irradiated prophylactically. Pa-tients beyond stage Ⅱ E should accept chemotherapy after surgery and radiotherapy according to the patient's status.
9.Population Difference Analysis of Allele Frequencies of 24 Y-STR Loci
Ruxin ZHU ; Junhong LIU ; Qi ZHAO ; Yuan LIN ; Li LI
Journal of Forensic Medicine 2016;32(3):189-192
Objective To investigate the population genetic polymorphisms of 24 Y-STR loci in unrelat-ed individuals in Eastern Chinese Han population, and to compare the difference of Han group between Eastern China and Guangdong.Methods The population genetics of 24 Y-STR loci in 268 unrelated Han individuals from Eastern China were analyzed by GFS 24 Y-STR amplification kit. The allele fre-quencies in Eastern Chinese Han population were compared with the data in Guangdong Han population, and the difference analysis between two groups was performed.Results Among the 24 Y-STR loci of 268 unrelated Han individuals from Eastern China, 235 alleles and 267 haplotypes were observed. GD value ranged from 0.5649 to 0.9668. The difference between 12 loci(DYS622,DYS552,DYS443etal.) of Han population in Eastern China and in Guangdong was statistically significance.Conclusion GFS 24Y STR amplification system shows favorable polymorphisms, which can be used in patrilineal genetic relationship identification.
10.Research and development of anti-interference portable transfusion-drop counter
Xingxi ZHU ; Xinyong HU ; Shitao QI ; Yun LIU ; Lin LI
Chinese Medical Equipment Journal 2003;0(11):-
Objective To resolve the difficulty in controlling the transfusion speed by medical personnel.Methods By using liquid drop sampling module,pulsing signals of liquid drop were obtained,and then they were enlarged,shaped and the wrong signals from the top and bottom surface of every drop were excluded before the standard triggered signals were sent out to SCM processing circuit,from which the real-time liquid drop speed and the average drop speed in every minute were obtained.Results Anti-interference and portable transfusion-drop counter could show the real-time liquid drop value and the average liquid drop value in every minute.Conclusion Anti-interference and portable transfusion-drop counter is convenient with simple structure and has been used in clinic.