3.Induced termination of second trimester pregnancy in women with scarred uterus
Haining JIAO ; Hua LIU ; Yan LIU
Journal of Chinese Physician 2017;19(3):407-410
Objective To investigate the suitable mode of induced termination of pregnancy at second trimester for women with scarred uterus.Methods A retrospective study was performed in 120 cases of second trimester pregnant women with scarred uterus,who requested termination of pregnancy in Department of Obstetrics,Ruijin Hospital of Shanghai Jiaotong University from January 2010 to July 2016.The indications of termination of pregnancy were fetal anomaly,serious pregnant complication,intrauterine fetal deaths and personal factors.The interval time of previous operation to this pregnancy were recorded.It was < 2 years in 35 cases and ≥2 years in 85 cases.The patients with normal hepatic function began to take mifepristone combined with ethacridine lactate (group A,62 cases).The method of mifepristone combined with misoprostol was used in the patients who failed to amniotomy to inject ethacridine lactatebecause of oligohydramnios or small gestational age (group B,58 cases).The detail information of every patient was recorded,including age,gestational weeks,gravidity,parity,the mode of previous operation,previous operation time and indication,the mode of induced labor inthis pregnancy,the interval time from administration to uterine contraction,delivery or not and the interval time from induction to delivery,postpartum hemorrhage,the successful rate of induce labor,and placental retention ratio.Results (1) It had no significant difference between groups A and B in age,gravidity,parity and the interval time of previous operation to this pregnancy (P > 0.05).There was significant difference between two groups in gestational weeks of induction (P <0.01).(2) It had no significant difference between two groups in successful rate of induction and postpartum hemorrhage (P > 0.05),but the time from induction to regular uterine contractionand delivery in group B was significant shorter than that of group A (P < 0.01).The rate of delivery with 24 hours in group B was 89.66%.It was significant higher than that of group A (22.58%,P <0.01).(3) The rate of retained placenta in group A (19.23%,10/52) was significant lower than group B (4g.7g%,20/41),but the ratio of residual of placenta and membranes in group A (75%,39/52) was significant higher than that of group B (48.78%,20/41).It was no significant difference between the over 2 years group and the less 2 years group in the incidence rate of complications including placental retention,residual of placenta and membranes and postpartum hemorrhage.It had no significant difference between two groups in incidence of severe pain (P > 0.05).Conclusions Both of methods of mifepristone combined with misoprostol and the mifepristone combined with ethacridine lactate are feasible to induce second trimester termination of pregnancy for women with scarred uterus.
4.Anti-tumor and immunoregulation activities of hedysari polysaccharide
Hua LIU ; Yi LIU ; Liping YAN
Journal of International Oncology 2011;38(8):589-591
Hedysari polysaccharide (HPS) is the main component of hedysarum polybotrys. HPS can inhibit tumor cell proliferation, block the cell cycle in the G2-M period, modulate apoptosis via the mitochon drial pathway, and improve the red blood cell innate immunity and T lymphocyte immune function. HPS can relieve low immunity caused by chemotherapeutics.HPS plays anti-tumor effects by these ways mentioned above.
5.Progress in studies on Panayiotopoulos syndrome.
Chinese Journal of Pediatrics 2009;47(10):794-796
6.Change of cornea posterior elevation after laser in situ keratomileusis
Yan, ZHENG ; Yue-hua, ZHOU ; Jing, LIU
Chinese Journal of Experimental Ophthalmology 2013;31(12):1155-1158
Background Keratectasia after laser in situ keratomileusis (LASIK) is one of the serious complications which affect the vision.The measurement of cornea posterior elevation is an important way helping to find this change.Objective The aim of this study was to investigate the change of cornea posterior elevation after LASIK in myopic eyes with astigmatism and affecting factors.Methods A series case-observational study was adopted.One hundred and twenty-seven myopic eyes with astigmatism of 66 patients who received LASIK in 2008 May through 2010 January in Beijing Tongren Hospital were retrospectively analyzed to evaluate the change of cornea posterior elevation following the LASIK.The parameters related to cornea posterior elevation were measured and compared before and 3 months,6 months and 1 year after surgery,respectively,with Oculyzer anterial segment analysis system.Results The height values from posterior cornea highest point,the lowest point and central vertex central elevation zone were (12.20±3.39),(-19.02±7.38) and (1.05 ±3.25) μm respectively before LASIK and were (14.38±3.80),(-18.55±7.11),(2.83±4.81)μm in3 months and (13.99±3.38),(-17.57±6.54),(2.45±4.61) μm in 6 months after LASIK.They were (14.40±3.85),(-17.76±6.00),(2.16±5.00) μm in 1 year after surgery.Significant increases were found in the vertex height and central elevation after LASIK compared with before surgery(highest pointq=6.813,5.594,6.875,all at P<0.001.central vertex:q=4.488,P=0.002;q =3.530,P=0.013 ;q =2.799,P =0.047).However,no significant difference was seen in various time points after LASIK (P>0.05).A positive correlation was obtained between the height value of the posterior cornea central vertex with the spherical equivalent (SE),maximum cutting depth or cutting proportion 1 year after LASIK (r =0.295,0.297,0.295,all at P=0.001),and there was a negative correlation between it with residual stroma (r=-0.208,P=0.019).The intraocular pressure (IOP) measured with noncontact tonometry (NCT) was (14.24±3.33) mmHg before LASIK,and those of 3 months,6 months and 1 year were (8.42± 1.90),(8.61 ± 1.64) and (8.76± 1.64)mmHg after LASIK,showing a significant lowing in IOP after LASIK in comparison with before LASIK (q =29.851,28.317,26.337,all at P<0.001).But no significant change was found in the different time points after LASIK (P>0.05).There was significant difference in the IOP corrected by Ehlers after LASIK (P>0.05).The IOP before LASIK had positive correlation with the central elevation of posterior cornea surface 1 year after LASIK(r=0.258,P =0.003).Conclusions The cornea posterior elevation increases slightly early stage after LASIK but retains stable level with lapse of time.The refraction diopter before LASIK is the main factor affecting the posterior corneal shape.To reduce the risk of corneal ectasia,more attention should be paid to the reserving of appropriate corneal residual stroma and smallest degree of eccentricity during the ablation procedure.
7.Mechanism of T helper cell for demyelinated optic neuritis
Jing, PANG ; Yuanyuan, LIU ; Hua, YAN
Chinese Journal of Experimental Ophthalmology 2014;32(5):408-414
Background Optic neuritis is one of the common clinical neuro-ophthalmic diseases.Recurrent optic neuritis can cause irreversible axonal damage and visual impairment,and no prevention method is effective up to now.Its pathogenesis is considered to be associated with the body's immune imbalance.Objective This proposal tried to establish experimental autoimmune encephalomyelitis (EAE) and explore the immunomodulatory effects of T helper (Treg),Th17 cell in the model of optic neuritis.Make the immune mechanism of demyelinating optic neuritis clear.Methods EAE model was established to observe the clinical symptoms and visual electrophysiological changes of optical neuritis in mice;hematoxylin-eosin staining to observe the histological changes in the mouse models of EAE; immunohistochemical staining to detect optic nerve axon damage markers β-amyloid peptide precurso (β-APP) protein expression quantity changes;reverse transcription PCR (RT-PCR) to detect the dynamic expression of forkhead/winged helix transcription factor p3 (Foxp3),transforming growth factor-β (TGF-β),interleukin-1β (IL-1β),IL-17,IL-10 in optic nerve tissue.Results After immunization 11 days,neurological symptoms of EAE mice started to appear,hematoxylin-eosin staining showed optic nerve tissue infiltration of inflammatory cytokines; immunohistochemical staining showed enhancement of axonal injury markers β-APP positive staining; flash visual evoked potential(F-VEP) test showed 7,11,14,19,23,28 days,compared with the normal mice,P1 prepatents of model group were prolonged after modeling,the differences were statistically significant (t =4.487,15.203,16.364,11.540,11.959,16.163,all at P<0.05).When 7 days after modeling,the difference of N1-P1 amplitude between normal group and model group was no statistical significance (t =-0.992,P =0.378); while 11,14,19,23,28 days after modeling,compared with normal mice,N1-P1 amplitudes of model mice were significantly lower,the differences were statistically significant(all at P< 0.05).The expressions of TGF-β,IL-1β,IL-17,Foxp3,IL-10 mRNA among different time points had stastistie significant differences (F =12.721,15.015,14.343,69.374,68.290,all at P =0.000),compared with the normal group,when 11 days,14 days after modeling,TGF-β mRNA levels were significantly increased ; 19 days,23 days after modeling,IL-1β mRNA levels were significantly increased;7 days,11 days after modeling,IL-17 mRNA levels were significantly increased ;7,11,14,19,23,28 days after modeling,Foxp3 mRNA levels were significantly lower; 19,23,28 days after modeling,IL-10 mRNA levels were significantly lower,the difference were statistically significant (all at P< 0.05).Conclusions Th17 cells launch demyelinating optic neuritis immune injury,and Th1 subgroup performs the function of maintaining inflammatory lesions,Treg cell subgroup is abnormal much earlier than that of the Th2 subgroup.The imbalance of Th17/Treg cell may be involved in the pathogenesis of demyelinating optic neuritis.
8.Recent advances on the modified endostatin and ocular neovascularization
Hua, LI ; Ping, LIU ; Hong-Yan, GE
International Eye Science 2009;09(4):642-644
Endostatin(ES), the C-terminal fragment of collagen XVIII, is a potent angiogenesis inhibitor. At present, there are a large number of research papers on ES. It has already been on clinical stage Ⅱ and been widely used in inhibition of neovascularization(NV). However, how to improve the bioactivity of ES is still a matter of ongoing discussion. The objective of this review is to elucidate the relationship between the modified ES and ocular neovascualrization, and to discuss the superiority based on the structure modification. The structure can be changed either by covalent modification or by genetical mutation. It is proposed that the secondary structral ES enhance the anti-angiogenic activity. Studies on modified ES also shed light on our understanding of the molecular action mechanisms of ES. Modified ES may be exploited as a new angiogenesis inhibitor for therapeutic applica-tions, in substitution of the native ES. Activity
9.Application of silk fibroin in biomedical areas.
Huanyu JIN ; Xing LIU ; Hua YIN ; Yan AN
Journal of Biomedical Engineering 2014;31(1):228-232
For a long period of time, silk fibroin has been applied in biomedical areas. Along with the development of biotechnology, new functions of silk fibroin are being found and developed. From the suture of surgery to the therapeutic drug and the ordinary tissue engineering frame to high grade frame with drug buffer system, exploitation of silk fibroin is constantly introduced with something new from the old ones. In our review, we summarize the applications of silk fibroin in tissue engineering, drug buffer system and medical care.
Fibroins
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therapeutic use
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Humans
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Tissue Engineering
10.Advance in studies on anti-inflammatory effect of Uygur medicine.
Yan LIU ; Li ZHANG ; Hua HUANG
China Journal of Chinese Materia Medica 2014;39(9):1714-1720
Inflammation refers to the defensive reaction of living organisms with vascular systems against damage factors, and gets involved in the pathogenesis of many diseases. Uygur medicine is an important component of traditional Chinese medicine, as well as one of the four major ethnic medicines. It is widely applied in the clinical treatment of inflammatory diseases. In recent years, many domestic and foreign scholars have studied the anti-inflammatory effect and mechanism of effective components, effective fractions, extracts and compound preparations of Uygur medicine. In this paper, the authors summarized anti-inflammatory Uygur medicine, in the expectation of providing reference for discovering new anti-inflammatory drugs from Uygur medicine.
Anti-Inflammatory Agents
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therapeutic use
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Drugs, Chinese Herbal
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therapeutic use
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Humans
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Medicine, Chinese Traditional
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methods
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trends
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Phytotherapy
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methods
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trends
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Plants, Medicinal
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chemistry
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classification
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Species Specificity