4.Leucovorin rescue after continuing infusion of high dose methotrexate.
Li-hua YANG ; Xin-tian LU ; Jian GU ; Ying HUA ; Wei-hong ZHAO
Chinese Journal of Pediatrics 2005;43(5):393-394
Adolescent
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Antimetabolites, Antineoplastic
;
administration & dosage
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Child
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Child, Preschool
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Female
;
Humans
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Infusions, Intravenous
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Leucovorin
;
administration & dosage
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Lymphoma, Non-Hodgkin
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drug therapy
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Male
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Methotrexate
;
administration & dosage
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adverse effects
;
blood
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Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
drug therapy
5.Study on survival status and pathogens in adult patients with severe community-acquired pneumonia for the past ten years
hua Zhao GU ; jun Dong ZHANG ; guo Jian HU
Tianjin Medical Journal 2017;45(10):1072-1076
Objective To investigate the survival status and pathogens in adult patients with severe community-acquired pneumonia (SCAP) for the past ten years in our hospital. Methods A total of 159 adult patients with SCAP were enrolled for this study from January 2007 to December 2016 in our hospital. Patients were divided into early stage group (from January 2007 to December 2011, n=71) and late stage group (from January 2012 to December 2016, n=88). The clinical data, pathogen distribution and prognosis were compared between two groups. Results (1) The proportion of patients with blood urea nitrogen (BUN) > 7.1 mmol/L was significantly higher in late stage group than that of early stage group (P<0.05). There were no significant differences in baseline data, vital signs, imaging findings and other laboratory examinations between the two groups (P>0.05). (2) For distribution of pathogens, 42 and 49 cases were detected pathogens in early stage group and late stage group. The detection rate of Legionella pneumophila was significantly higher in late stage group than that in early stage group (26.5% vs. 7.1%, P<0.05). (3) For complications, the incidence of septic shock was significantly higher in late stage group than that in the early stage group (22.7%vs. 9.9%, P<0.05). The fatality rate within 30 d after admission was significantly higher in late stage group than that of early stage group (43.2%vs. 25.4%, P<0.05). Results of multi-factor Cox proportional hazard regression analysis showed that septic shock and respiratory acidosis were independent risk factors of mortality in early stage group (P<0.05) while septic shock, chronic obstructive pulmonary disease (COPD) and multi-lobar infiltrates were independent risk factors of mortality in late stage group ( P<0.05). Conclusion In the past ten years, basic clinical characteristics of adult patients with SCAP in our hospital have changed little, but detection rate of legionella has showed increasing trend, and the short-term mortality rate has increased. Whether or not patients are combined with septic shock is a key factor affecting the prognosis.
6.Improvment and Analysis in Experimental Technology of Microoganic Anxanography
Jian-Ping GU ; Qing ZHANG ; Bang-Fang LIU ; De-Hua FANG ;
Microbiology 1992;0(01):-
Inoculant the examine-needed germ on a flat panel of synthetic medium, and placed paper slices, which had being saturated by different kinds of sugar, on the medium to carry out the experiment of microorganic auxanography. Its result was compared with that of the traditional method, the sugar-grain method. The comparison showed that the former was better than the latter for its more definite result and more convenient operation.
7.Ultrasonic diagnosis of thyroid microcarcinoma and analysis on reason for its misdiagnosis
Hua-yun, GU ; Xue-dong, DENG ; Jian-feng, GUO ; Qiu-long, JIN ; Yu, YAN
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(11):947-950
Objective To analyze the ultrasonic features of thyroid microcarcinoma (TMC) and the causes of misdiagnosis. Methods The ultrasonic features including shape, margin, echogenecity, microcalcification, vascularity and lymphadenopathy were analyzed retrospectively in 26 pathologically-proven TMC patients. Results In 26 cases, 11 cases were diagnosed correctly before operation (11/26, 42.31%), 12 cases were misdiagnosed (12/26, 46.15%) as adenoma or benign nodule, and 3 cases were missed diagnosed (3/26, 11.54%). Among the 23 cases detected on ultrasound, 21 cases were solid and hypoechoic (21/23, 91.30%);19 cases were ill-defined (19/23, 82.61%);12 cases were taller than wide in shape (12/23, 52.17%); 14 cases had microcalcification (14/23, 60.87%); 7 cases showed central or peripheral blood flow signals (7/23,30.43%) with arterial resistance index>0.70 in 3 lesions and<0.70 in 4 lesions. Conclusions Several ultrasonographic features are helpful in identiifcation of TMC, including hypo/iso-echogenecity, ill-deifned margin, taller-than-wide shape, microcalciifcation, arterial signals with high resistance index, and abnormal lymphadenopathy. Moreover, for cases with multiple lesions, to the potential co-existence of benign and malignant lesions should be considered.
8.Experimental study of treatment on rabbit liver VX2 tumor by selective hepatic artery embolization hyperthermia with nano superparamagnetic iodized oil
Zheng-Qiang YANG ; Jian-Hua WANG ; Xu-Man WANG ; Hong-Chen GU ; Qian-Jun PANG ;
Chinese Journal of Radiology 2001;0(08):-
Objective To observe the therapeutic response of liver tumors by arterial embolization hyperthermia with Nano Superparamagnetic Iodized Oil(NSIO)using rabbit VX2 liver tumor model.Methods A total 24 rabbits containing experimental hepatic tumors were randomly assigned to one of four groups as follows:NSIO embolization hyperthermia group(group A),Lipidol embolization group(group B),NSIO embolization group(group C),and contronl group(group D),each groups contain 6 VX2 rabbits.Fourteen days after implantation of the experimental hepatic tumor,VX2 rabbits were treated.In group A group B and group C,the rabbits hepatic proper artery were selectively catheterized by 3 Fr microcatheters via right femoral artery under fluoroscopic guidance.10% NSIO 0.5 ml(group A and group C)or Lipidol 0.5 ml(group B)infused into proper hepatic artery.Three days after embolization,the rabbits in group A and group B were exposed to gap-type alternating magnetic field for 30 minutes,while rabbits in group C and group D have not been exposed to alternating magnetic field.The liver tumor size were measured by CT scanning before and 14 days after treatment then the animals were sacrificed,the liver,lung,heart spleen and kidney were harvested for histopathology examination,the liver tumor size were detected directly. Results All subjects experienced uneventful 14 days surivials,on the biochemical examination,there were no changes about the function of liver and renal in each group 14 days after treatment compare to pre- treatment.Fourteen days after treatment,the tumor size decreased by 8.09% in group A,but increased by 9.72% and 13.00%(P<0.05)in group B and group C respectively,in group D,the tumor size increased by 57.50%(P<0.01).In histopathology examination,the tumor necrosis in three treatment groups were manifest,particular in group A.Conclusion Arterial embolization hyperthermia with NSIO has obvious therapeutic response to experimental hepatic tumors,it encourages further development of this technology for the treatment of liver cancer in humans.
9.Relationship between the expression of multidrug resistant protein genes and fluconazole resistance in clinical isolates of Candida albieans
Xiao-Feng QIN ; Jian-Hua WU ; Yi HUANG ; Yuan-Ying JIANG ; Jun GU ;
Chinese Journal of Dermatology 2003;0(08):-
Objective To explore the relationship between fluconazole resistance and expression of multidrug resistant protein genes,including CDR1,CDR2,MDRI.Methods The total RNA was extracted from fluconazole-resistant and -susceptible Candida albicans isolates,and cDNA was synthesized.The expression of CDR1,CDR2 and MDRl genes was then detected by quantitative real-time PCR.The?CT (threshold cycle) value was obtained by subtracting the CT value of 18S rRNA from that of the targeted gene.Results The?CT value of CDR2 was significantly lower in fluconazole-resistant isolates than in fluconazole- susceptible isolates (7.52?2.53 vs.9.28?3.15,t=2.367,P
10.Effects of Pneumoperitoneum with Carbon Dioxide on Implantation and Growth of Tumor Cells
Guang-Yi WANG ; Xian-Ying MENG ; Jian-Hua GU ; Guo-Yue LV
Chinese Journal of Bases and Clinics in General Surgery 2003;0(02):-
Objective To study whether carbon dioxide used to establish pneumoperitoneum has an influence on port-site and intraperitoneal implantation and metastasis of tumor cells. Methods R 15 hepatic cancer cells were injected into 30 Wistar rats’ peritoneal cavities 1 hour before operation, then the 30 Wistar rats were randomly divided into 3 groups: gasless group, helium group and carbon dioxide group. The suspension was exposed to the gas environment for 2 hours, all animals were killed after 28 days and the port-site and intraperitoneal implantation and metastasis of tumor cells were examined.Results On port-site, intestinal serous coat, mesentery, greater omentum and diaphragm, the weights of tumor cells, in carbon dioxide group were (326.7?230.3) mg, (626.2?215.9) mg, (476.2?204.8) mg,(2 536.5?906.7) mg and (384.5?149.9) mg respectively; in helium group were (235.6?107.3) mg, (414.2?148.4) mg, (261.8?92.6) mg, (1 633.4?247.3) mg and(220.0?57.9) mg; in gasless group were (145.0?42.4) mg, (221.5?108.2) mg, (212.5?109.6) mg, (797.5?335.9) mg and 113.0 mg.The weights of carbon dioxide group showed a significant increase, compared with helium group and gasless group (P 0.05). Conclusion The insufflation of carbon dioxide promotes intraperitoneal tumor implantation and growth compared with helium and gaslessness in a rat model.