1.Effect of High-Dose Cyclophosphamide on Water,Serum Electrolytes and Renal Function of Children
zhi-yong, KE ; feng, LAI ; jing, LI ; xue-qun, LUO
Journal of Applied Clinical Pediatrics 1993;0(03):-
Objective To learn about electrolytes imbalance and water intoxication in children treated with high-dose cyclophosphamide(HD-CTX)as well as the renal function and the relative clinical symptoms,and study the mechanisms of hyponatremia.Methods Patients' clinical manifestations during and after HD-CTX therapy were summarized.Serum electrolytes and creatinine(Cr)were detected before and 6 or 8 hours after therapy with HD-CTX,antidiuretic hormone(ADH) in some patients were measured.Results Of 108 therapeutic cases 24 accompanied with vomits and 22 with a decreased urine output,in which 4 developed eyelid or ankle edema.Seven cases had neural-sarcous symptoms and 5 cases had abdominal pain or diarrhea.Serum sodium decreased significantly after HD-CTX[(139.12?3.30) mmol/L vs(134.06?8.23) mmol/L] in whom rechecked after 6 h,(141.77?3.59) mmol/L vs(133.26?6.41) mmol/L in those rechecked after 8 h(Pa0.05].Serum Cr increased 8 h after therapy[(29.95?13.61) ?mol/L vs(43.33 ? 17.25) ?mol/L P
2.Advances in loop-mediated isothermal amplification in the diagnosis of tuberculosis
LUO Li-sha ; LIU Lin ; FENG Pin ; LAI Ji-jia ; CHEN Xue-yuan ; KONG Qing-quan
China Tropical Medicine 2022;22(11):1097-
Abstract: The loop-mediated isothermal amplification (LAMP) technique is a technique for the specific and efficient amplification of target fragments at a constant temperature using two pairs of specially designed primers and a strand displacement activity DNA polymerase. LAMP technique is a simple, rapid, specific, sensitive and cost-effective nucleic acid amplification method, and therefore has a promising future in the field rapid detection of Mycobacterium tuberculosis and grassroots applications. In this review, the basic principles and characteristics of the LAMP technique, the main molecular markers for the diagnosis of tuberculosis, and the use of different molecular markers and various types of novel techniques in the diagnosis of pulmonary tuberculosis, extrapulmonary tuberculosis, and drug-resistant tuberculosis were described. The LAMP technique has been widely used in the diagnosis of tuberculosis with high sensitivity and specificity, but the technique still has some shortcomings. This paper reviews the progress of its application in tuberculosis in recent years and provides an outlook on its development, with a view to providing a rational research direction for rapid diagnosis of tuberculosis in a resource-limited environment.
3.Clinical Study on Qingjin Huazhuo Prescription Combined with Western Medicine Therapy for Treatment of Acute Exacerbation of Chronic Obstructive Pulmonary Disease
Feng GAO ; Bin WANG ; Wei WANG ; Wei WU ; Huimei LIU ; Xue LAI
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(10):14-17
Objective To observe the efficacy and acute inflammatory reactionof Qingjin Huazhuo Prescription combined with Western medicine therapy for treatment of acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Methods Totally 60 hospitalized patients with AECOPD (Grade Ⅱ) and acute exacerbation course≤1 week were enrolled in this study. The patients were randomly divided into two groups, with 30 cases in each group. The control group was treated with conventional Western medicine. The observation group was treated with conventional Western medicine and oral administration of Qingjin Huazhuo Prescription for 10 days, once a day. TCM syndrome and dyspnea grading (mMRC score), white blood cell (WBC), C-reactive protein (CRP), procalcitonin (PCT) and partial pressure of oxygen (PaO2), partial pressure of carbon dioxide (PaCO2), were measured before and after the treatment. Results The total scores of TCM syndromes and cough, expectoration, wheezing, fever, and cyanosis in the two groups decreased significantly (P<0.05). The improving degrees of cough and expectoration were better in the observation group than in the control group (P<0.05). The scores of mMRC in the two groups were better than before treatment (P<0.05). The levels of WBC, CRP and PaCO2 in the two groups were lower than those before treatment (P<0.05). The decreased degrees of CRP and PaCO2 in the observation group were better than those in the control group (P<0.05, P<0.01). Conclusion Qingjin Huazhuo Prescription combined with Western medicine therapy can relieve clinical symptoms, reduce the acute inflammatory reaction of AECOPD patients and improve respiration.
4.Soluble Expression and Purification of Snake Venoms Fihrino(geno)lytic Emzyme Alfimeprase in E.coli
Shou-Tao ZHANG ; Yan-Sheng ZHOU ; Xue-Hua LAI ; Xing-Feng BAO ; Ai-Guang GUO ;
China Biotechnology 2006;0(03):-
Fibrolase is a non-hemorrhagic zinc metalloproteinase isolated from southern copperhead snake venom (Agkistrodon contortrix contortrix) and is capable of degrading fibrin clots resulting from purified fibrinogen or from blood plasma. Alfimeprase, a truncated form of fibrolase, as a clinical agent was successfully completed PhaseII clinical trials.The cDNA of alfimeprase was amplified by recursive PCR, digested with BamHI and HindII, and cloned into pET43.1a, pMALp2X and pMALc2X vectors to generate fusions with NusA, MBP and sMBP(with signal peptide), respectively. Nus/alfimeprase was expressed in soluble form by co-expressing with chaperone FkpA and inducing with1mmol/L IPTG. The fusion protein accounted for about 25 % of total protein following cell lysis. Alfimeprase was successfully purifiesd by Ni-NTA affinity chromatography and cleaved by enterokinase. The results demonstrate the fibrinolytic activity of recombinant alfimeprase using fibrin plate assays and fibrinogen hydrolysis.
5.STUDIES ON TREATMENT OF ODL FIELD WASTEWATER BY OIL-DEGRADING BACTERIA
Feng-Lai LIANG ; Ya-Jun GUAN ; Xue-Song SUN ; Mo-Han LIU ; Ru-Lin LIU ;
Microbiology 1992;0(02):-
A mixed bacteria culture F6 isolated from oil field wastewater can degrade petroleum hydrocarbons efficiently. The bacteria were suitable to treat oil-polluted wastewater of oil field. Simulated result treating oil-polluted wastewater in laboratory showed that after "XingyiLian" wastewater of Liaohe Oil Field was treated by fluidized-bed bioreactor system with the vehicle of activated carbon , the amount of oil and CODcr of the flow out water were decreased from 45mg/L to 4. 1mg/L and 470mg/L to 42mg/L separately , according with first class standards of Chinese Wastewater Discharge Regulation.
6.Characters and Oil Field Trial of Oil-Degrading Bacterium Strain NX-2
Feng-Lai LIANG ; Shou-Qiang CHENG ; Xue-Lian SUN ; Ru-Lin LIU ;
Microbiology 1992;0(03):-
Based on reservoir condition and fluid characteristics, the oil-degrading bacterial strain NX-2 was screened from Ma-2 fault block of Huabei oil field. Bacterial metabolism and the capability of improving oil property were evaluated on oxygen-deficient condition. At 87℃ which reservoir temperature is, artificial homogeneous core displacement experiment indicated the enhanced oil recovery of microbe was 7.1% higher than that of waterflooding. In experiment on individual well Ma-410, additional oil production of 669 tons was gained, and decreased water production of this trial well reached more than 3000 tons. These results demonstrated NX-2 could adapt to stratum conditions, enhance oil recovery and improve oil property as well.
7.Clinical application of antiproteinase 3 antibodies in Wegener's granulomatosis and other vasculitis patients
Cai-Hong WANG ; Xiao-Feng LI ; Xue-Fang HU ; Zhi-Qing LV ; Lin ZHANG ; Lai-Yuang WANG ;
Chinese Journal of Rheumatology 2003;0(12):-
Objective To investgate prevalence and clinical significance of antiproteinase 3(PR3)an- tibodies in Wegener's granulomatosis(WG)and other vasculitis patients.Methods One hundred and eleven systemic vasculitis patients with WG(9 cases,including 21 serums of tracking WG patients)and other systemic vasculitis(102 cases),403 secondnary vasculitis CTD(SLE 213 cases,RA 135 cases),nephritis 62 cases,30 healthy subjects were examined for anti-PR3 and anti-MPO antibody by enzyme-linked immunosorbent assay (ELISA)and ANCA by indirect immunofluorescence(IIF)was performed.Result Anti-PR3 positive were 23 in 588 serums of patients.The prevalence of anti-PR3 positive was WG(16/21,71.4 %),other systemic vas- culitis were not found anti-PR3,SLE(6/213,2.8%),RA(1/135,0.7%).In particular,the prevalence of anti- PR3 and cANCA with WG tended to be higher in the patients with other systemic and secondnary vasculitis (P<0.05).The sensitivity and specificity of anti-PR3 for diagnosis of WG were 71.42% and 98.58%.The sensi- tivity and specificity of combination anti-PR3 and cANCA were 61.90% and 99.82%.Anti-PR3 and cANCA are associated with treament of WG.Conclusion Anti-PR3 antibody has high specificity for diagnosis of RA. Detection of anti-PR3 and cANCA at the same time can improve the specificity considerably.As sensitive markers of WG,anti-PR3 antibody may be useful for diagonosis and early treament.Anti-PR3 also may be useful for activity and relapse of WG.
8.Incidence of Thymoma in Myasthenia Gravis: A Systematic Review.
Zhi Feng MAO ; Xue An MO ; Chao QIN ; Yong Rong LAI ; Maree L HACKETT
Journal of Clinical Neurology 2012;8(3):161-169
BACKGROUND AND PURPOSE: Myasthenia gravis (MG) is usually comorbid with thymoma. More accurate estimates of the incidence thymoma in MG will help inform patients and their physicians, facilitate health policy discussions, provide etiologic clues, and optimize the management of MG. METHODS: We conducted a systematic review search of relevant English-language studies published between 1960 and 2012 using MEDLINE and Embase. We identified additional studies by reviewing the bibliographies of the retrieved articles and hand searched the main neurology journals. Only incidence studies and case series of unselected MG patients in which information about thymoma were included. RESULTS: Out of 2206 potentially relevant studies, 49 met the inclusion criteria. Although there was a considerable degree of heterogeneity, the pooled estimate of the incidence of thymoma in MG was 21% (95% confidence interval, 20-22%). The pooled incidence was significantly higher for surgery-based studies than for population- and hospital-based studies. A large proportion of the reported thymomas were noninvasive. Furthermore, thymoma appears to occur significantly more frequently among male MG patients and those older than 40 years at the onset of MG. CONCLUSIONS: Thymoma is common in MG patients, but appears to be found more often in male MG patients and those older than 40 years at the onset of MG. Further research is needed to expand our understanding of these association conditions.
Cohort Studies
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Hand
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Health Policy
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Humans
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Incidence
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Male
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Myasthenia Gravis
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Neurology
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Population Characteristics
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Thymoma
9.Progress of researches on carnitines in the clinical therapy of andrology.
Xue-jun SHANG ; Xiu-lai WANG ; Yu-feng HUANG
National Journal of Andrology 2006;12(9):826-831
Carnitine, an important compound in the beta-oxidative process of mitochondrial fatty acid, plays a significant role in the cardiovascular, nervous, and reproductive system. Recently, carnitine has been used as a therapeutic in the treatment of male infertility, erectile dysfunction, Peyronie's disease, etc. Accordingly, the objective of this review is to summarize the progress in researches on carnitine as a clinical therapy in andrology.
Carnitine
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therapeutic use
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Erectile Dysfunction
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drug therapy
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Humans
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Infertility, Male
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drug therapy
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Male
10.Carnitines and male reproduction.
Xue-Jun SHANG ; Xiu-Lai WANG ; Yu-Feng HUANG
National Journal of Andrology 2006;12(8):726-729
Carnitines are important conditionally essential nutrients in the organism, with extensive physiological functions, and highly concentrated in the epididymis and sperm. Carnitines play an important role not only in initiating sperm motility, promoting sperm maturation and enhancing sperm fertilizing, but also in regulating Sertoli cell function, protecting sperm against oxidative damage, reducing apoptosis of spermatogenic cell and inhibiting sperm aggregation. Accordingly, the objective of this review is to summarize the multifunctional roles of carnitine in male reproduction.
Animals
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Carnitine
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physiology
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Humans
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Male
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Mice
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Rats
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Sperm Count
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Sperm Maturation
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physiology
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Sperm Motility
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physiology
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Spermatozoa
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physiology
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Testis
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physiology