1.Clinical features, treatment and prognosis analysis of the asymptomatic patients with retinoblastoma
Xiuqian YI ; Xiaoting ZHOU ; Jiang QIAN ; Hui REN ; Kang XUE
Chinese Journal of Ocular Fundus Diseases 2021;37(3):201-205
Objective:To analyze the clinical features, treatment and prognosis of asymptomatic patients with retinoblastoma.Methods:A retrospective series of case study. Eight asymptomatic patients (11 eyes) with the diagnosis of retinoblastoma by screening enrolled in Department of Ophthalmology of The Eye-ENT Hospital of Fudan University from January 2006 to March 2019 were included. There were 6 males and 3 females ranging from 2 days to 20 months, with a median age of 6 months. Five patients were unilateral retinoblastoma while 3 patients were bilateral. Based on the International Classification of Intraocular Retinoblastoma, 4 eyes were stage A, 3 eyes were stage B and 4 eyes were stage C. One patient had family history. Four patients were evaluated the Rb1 mutation. Routine ophthalmic examinations and ultra-wide field fundus imaging were performed on the 16 parents and 3 siblings of the 8 patients. Systemic intravenous chemotherapy was performed using the Carboplatin, Vincristine, Etoposide protocol, intra-arterial chemotherapy using Carboplatin and Melphalan, and local treatment involved cryotherapy and transpupillary thermotherapy. The mean follow-up time is 47.25 months.Results:None of the 8 children had any ocular symptoms. Six patients received intravenous chemotherapy (5-6 times), 1 patient received intra-arterial chemotherapy (3 times), and 1 patient just received local treatment. Among the 11 eyes, 9 eyes were treated with local cryotherapy and 8 eyes were treated with transpupillary thermotherapy. During the follow-up period, 2 patients had new tumor, and the average time was 6.3 months after the last chemotherapy. At the last follow-up, the tumor disappeared in 11 eyes, remained stable in 11 eyes. The eye protection rate was 100% (8/8) for patients without eyeball excision. The best corrected visual acuity was 0.1 for 3 eyes and 1.0 for 5 eyes. Three eyes were not found. One heterozygous mutation of Rb1 gene [1c.35_69del (p.T12fs)] was identified in 1 patient, and the other 3 patients were not detected. One had bilateral bulbar tuberculosis of the 16 parents, 1 had bilateral RB of the 3 siblings. They were the mother and brother of a child with bilateral RB.Conclusions:Fundus screening is helpful for the detection of early RB. The eye protection rate is high and the long-term vision prognosis is good after systemic or topical chemical drugs (IVC, IAC) and ocular topical treatment (cryopreservation and transpupillary thermotherapy).
2.An Oxygen-tolerant Denitrifying Strain and Its Denitrifying Processes
Fan HE ; Yi-Jun KANG ; Jun SHAN ; Jian HU ; Shi-Xue YIN ;
Microbiology 1992;0(01):-
An oxygen-tolerant denitrifying strain designated as H1 was screened by the procedures of shallow shaking and continuous aeration cultures.With the aid of an nnrS-gfp fusion responsive to nitric oxide (NO)and acetylene inhibition-GC procedure,it was shown that strain H1 was able to produce NO and N_2O but not N_2 under denitrifying conditions.Denitrifying processes were thus determined as NO_3~-→NO_2~-→NO→N_2O,with N_2O as the end product.Strain H1 could denitrify under shallow shaking conditions as well as in the initial atmospheric oxygen concentration ranging from 0~21%.Denitrification processed normally under continuous aeration at the rate of 2 L air per min in a 150 mL medium,but stopped under high aeration rate as 5 L air per min.16S rRNA gene sequence revealed that strain H1 shared 98% similarity to its closet relative Ralstonia taiwanensis,the genus where denitrifying bacteria are frequently found.
3.Emergency reparation and reconstruction for complicated tissue defects in hand
Yi-Min CHAI ; Bing-Fang ZENG ; Qing-Ling KANG ; Jian-Feng XUE ; Ji SHEN ; Jia JIANG ;
Chinese Journal of Microsurgery 2006;0(05):-
Objective To explore the operative methods and clinical outcomes in emergency or sube- mergency repair for the complicated tissue defects in hand in first stage applying microsurgical technique. Methods From Jan.,2000 to Aug.,2005,49 emergency cases of complicated hand tissue defects were re- paired in the first stage with replantation,reconstruction,free flaps,combined finger reconstruction and flap transplantation,including 21 cases in mini tissue mass replantation or reconstruction,15 cases in replantation combined with free flap transplantation,8 cases in replantation and reconstruction combined with free flap transplantation,5 cases in combined multiple digits reconstruction with free flap transplantation.The free flap transplantation included the anterolateral femoral flap,the latissimus dorsi myocutaneous flap,the dorsalis pe- dis flap,the media pedis flap and the instep flap.Results All the flaps,the replanted and reconstruceted finger survived uneventfully except for one replanted finger necrosis.45 cases healed in the first stage and the other 4 cases healed in the second stage.During a follow-up from 6 months to 3 years postoperatively,a satis- factory appearance and function of the reconstructed hand was achieved.The excellent and good rate was 85.7% assessed with provisional functional assessment criterion for upper limbs issued by Chinese Society of Hand Surgery.Conclusion The emergency or subemergency repair for the complicated tissue defects in hand has the advantage of short-term treatment and desirable functional outcome.The emergency replantation and reconstruction combined with various flaps or tissue mass can be applied to repair tissue defect in hand in the first stage according to the position and area of the defect along with the technique level of the surgeon, having been proved to achieve desirable clinical outcomes.And the key points leading to a successful operation is the correct treatment for the raw surface of the defects,suitable choice for various flaps,logical design of combination pattern and prevention and timely treatment for vessel crisis.
4.Stable life predection of Hangbaiju and Gongju by classic constant temperature accelerated test method.
Da-Peng ZHANG ; Zhi-Ping XUE ; Jie LIU ; Wen-Yi KANG
China Journal of Chinese Materia Medica 2012;37(21):3182-3184
OBJECTIVETo study the stability of chlorogenic acid, cynaroside and 3,5-O-discaffeoylquinc acid in Hangbaiju and Gongju and to predict their term of validity.
METHODHangbaiju and Gongju were incubated in an environmental chamber at different temperatures and relative humidities. After the incubation, quantitative determination of chlorogenic acid, cynaroside, 3,5-O-discaffeoylquinc acid in Hangbaiju and Gongju were measured by HPLC. The effective period of the preparation was calculated according to Arrhinius index law. Quantitative determination of 3,5-O-discaffeoylquinc acid, cynaroside, chlorogenic acid in Hangju and Gongju were analyzed by HPLC.
RESULTThe stable life of Hangbaiju has been determined as 2.25 years. The stable life of Gongju has been determined as 4.31 years.
CONCLUSIONThe high temperature is not conducive to the stability of Hangbaiju and Gongju, which needs to be placed in a dark and cool place.
Chlorogenic Acid ; analysis ; Chromatography, High Pressure Liquid ; Chrysanthemum ; chemistry ; Drug Stability ; Drugs, Chinese Herbal ; chemistry ; Temperature
5.Stable life predection for honeysuckle by initial average rate stability test.
Zhi-Ping XUE ; Jin-Mei WANG ; Jie LIU ; Wen-Yi KANG
China Journal of Chinese Materia Medica 2012;37(21):3179-3181
OBJECTIVETo study the content change of chlorogenic acid in honeysuckle under different temperature, and predict its term of validity at room temperature.
METHODThe content of chlorogenic acid was assayed by HPLC. The activation energy E(a) and the decomposition rate constant K were calculated by initial average rate stability tests and the prediction was carried out.
RESULTThe stable life of honeysuckle has been determined as 1.29 years.
CONCLUSIONThe initial average rate stability test was used to predict stable life of honeysuckle, and the results are credible. Higher temperature should be avoided for honeysuckle store, and room temperature should guarantee its quality during storage.
Chlorogenic Acid ; analysis ; Chromatography, High Pressure Liquid ; Drug Stability ; Lonicera ; chemistry ; Temperature
6.Stable life predection for Psoralea corylifolia by initial average rate stability test.
Jin-Feng WEI ; Zhi-Ping XUE ; Jie LIU ; Wen-Yi KANG
China Journal of Chinese Materia Medica 2012;37(21):3176-3178
OBJECTIVETo study the total content change of psoralea and isopsoralea in Psoralea corylifolia under different temperature, and predict its term of validity by initial average rate stability test in order to provide the basis for assessing its quality.
METHODThe reaction rate constant K was replaced by initial velocity V. According to Arrhenius rule, storage period was obtained at room temperature.
RESULTThe stable life of P. corylifolia has been determined as 0.53 years.
CONCLUSIONThe high temperature is not conducive to the stability of the P. corylifolia, which need to store in a dark and cool place.
Drug Stability ; Psoralea ; chemistry ; Temperature
7.Solitaire AB Stent-Assisted Coiling of Wide-Neck Micro Aneurysms.
Xue dong LI ; Jun QIN ; Zhen Yong XIAO ; Yi FENG ; Jia Kang CHEN
Journal of Korean Neurosurgical Society 2016;59(4):341-345
OBJECTIVE: Solitaire AB stent-assisted coiling facilitates the endovascular treatment of wide-necked intracranial aneurysms. We present our experience of coiling the micro-aneurysms of wide-neck with Solitaire AB stent assisting in a single center. METHODS: Thirty-one Solitaire AB stents were used to treat via endovascular approach patients with 31 wide-neck micro aneurysms in a single center in China. Technical and clinical complications were recorded. Modified Rankin Scale was used to evaluate the patients' conditions via clinic and telephone follow-up. RESULTS: The mean width of aneurysm sac was 2.30±0.42 mm, and the mean diameter of aneurysm neck was 2.83±0.48 mm. Complete occlusion was achieved in 28 aneurysms (90.32%); neck remnant was seen in 3 aneurysms (9.68%). Technical and clinical complications related to the procedure were encountered in four patients (12.5%). Two patients died (6.25%). No patient had a permanent deficit. CONCLUSION: Solitaire AB stent was a safe and efficiency tool in assisting coiling of micro aneurysms with wide neck, but may be not suitable for a blaster-like one. Mid- and long-term follow-up will be required to elucidate the impact of the Solitaire AB stent on recanalization rate.
Aneurysm*
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China
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Follow-Up Studies
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Humans
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Intracranial Aneurysm
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Neck
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Stents
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Telephone
8.Recent developments of the study on the energy metabolism in the meridians.
Kang WANG ; Xue-zheng WANG ; Yi GUO ; Yong-ming GUO
Chinese Acupuncture & Moxibustion 2011;31(4):381-384
Based on the literatures retrieved on CNKI and PubMed database in recent twenty years, the major indices of meridian activities, for instance, ATP, oxygen partial pressure, transcutaneous CO2 emission, pH value, temperature, and the energy metabolic characters along the meridians, are analyzed and summarized in this paper. The selection requirements of study subjects, the acupoint selection principles, and research methods are introduced in great detail according to selecting appropriate pathological model, applying the specifity of acupoints and the physiologic characteristics of meridians in order to establish cooperation among relevant fields.
Acupuncture Points
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Animals
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Blood Circulation
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Carbon Dioxide
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metabolism
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Energy Metabolism
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Humans
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Meridians
9.Effects of extracellular ATP on GFAP expression after spinal cord injury in rats
Yan-Chao MA ; Jun QIAN ; Zheng-Yi SUN ; Xue-Wen KANG ; Hai-Hong ZHANG ; Shuan-Ke WANG
Chinese Journal of Neuromedicine 2008;7(10):988-991
Objective To investigate the effects ofextracellular adenosine triphosphate (ATP)on the expression of glial fibrillary acidic protein (GFAP) and the recovery of motor function after spinalcord injury in rats. Methods Six rats were selected as the normal control group randomly from 66adult healthy Wistar rats, and the rest 60 rats were divided into 2 groups after contusion injury wasperformed by the weight drop method with Allen impactor: group A (ATP group) and group B (controlgroup), and every group contained 30 rats. At day 1, 3, 7, 14, and 28 after injury, the rats were killed, andthe expression of GFAP was detected with immunohistochemistry. The expression of GFAP in theadjacent area was semi-quantitatively analyzed with a computer image analysis system; the recovery ofmotor function after spinal cord injury was assessed with improved Tarlov scores. Results Theexpression of GFAP was significantly higher in group A than in Group B after spinal cord injury in rats(P<0.05), and significant difference was also revealed in the expression of GFAP between the 2 groups atday 7, 14 and 28 after injury (P<0.05). At day 14 and 28, Tarlov scores were significantly higher in groupA than in group B (P<0.05). Conclusion Extracellular ATP can promote the expression of GFAP inspinal cord, and may be helpful to the recovery of motor function after spinal cord injury in rats.
10.Effect of ABO-incompatible allogeneic stem cell transplantation on erythroid lineage hematopoiesis.
Xue-Jiao CAI ; Jun-Yin HONG ; Yi CHEN ; Kang YU
Journal of Experimental Hematology 2011;19(3):801-804
This study was purposed to investigate the effect of ABO-incompatible allogeneic hematopoietic stem cell transplantation (allo-HSCT) on erythroid lineage hematopoiesis. The changes of ABO group, IgM and IgG antibody in 16 patients received ABO-incompatible allo-HSCT were detected. The results showed that ABO-incompatible allo-HSCT were successfully engrafted in 16 patients, and there was no difference in reconstitution of platelets and neutrophils between ABO-incompatible and ABO-compatible transplantation (p > 0.05). The time of erythroid lineage reconstitution was prolonged (p < 0.05), the disappearance time of isoagglutinins against donor-type RBC in major and bidirectional ABO-incompatible recipients was correlated with the time of erythroid lineage reconstitution. It is concluded that ABO-incompatible allo-HSCT may lead to prolong recovery of erythroid lineage hematopoiesis. Before transplantation, the removal of anti-donor isoagglutinins by plasmapheresis or transfusion of donor's erythrocytes for neutralizing the isoagglutinins against donor's erythrocytes in the recipients may facilitate RBC engraftment and reduce erythrocyte transfusion.
ABO Blood-Group System
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immunology
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Adult
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Blood Group Incompatibility
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blood
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immunology
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Erythrocytes
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immunology
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Female
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Hematopoiesis
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Hematopoietic Stem Cell Transplantation
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methods
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Humans
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Male
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Transplantation, Homologous