1.The improvement of the diagnostic indicators for neonatal infectious diseases
Yunlin SHEN ; Limei ZHANG ; Wenjuan TANG
International Journal of Pediatrics 2010;37(3):279-282
With the developing of the immunology,genetic diagnosis, and flow cytometry technology, the diagnosis of neonatal infectious diseases have been a lot of new improvement.Serum amyloid protein A,interferon-gamma-inducible protein 10 and triggering receptor expressed on myeloid cells-1 may be valuable in neonatal infectious diseases. Detection of the bacterial genes by gene chip hybridization technology can diagnose neonatal septicemia rapidly. Each of the diagnosis indicators for infection has their respective clinical and laboratory features. The comprehensive understanding of the biological characteristics,sensitivity,specificity of each indicator, and continuous and joint monitoring of several indicators can improve the diagnostic sensitivity and negative predictive value. It is the direction of infectious diseases diagnosis in future.This paper reviews the current diagnostic indicators for neonatal infectious disease.
2.TCM Directed Through Drug Treatment Combined with Warm Acupuncture for the Pain of Shoulder-hand Syndrome after the First Time of Stroke
Limei YAO ; Chunchu NI ; Zhifang SHEN
Journal of Zhejiang Chinese Medical University 2015;(10):764-766
Objective]The clinical efficacy of TCM directed through drug treatment of pain for the first time with the temperature needle shoulder-hand syndrome after caused by stroke.[Methods]The 90 cases were randomly divided into treatment and control groups.The treatment group was directed through medicine with traditional Chinese medicine acupuncture treatment temperature ,the control group using only warm acupuncture.Respectively, before treatment, the first 30 days of oral grading score(VRS) was assessed for limb pain.[Results]After treatment ,the patient's limb pain scores were significantly lower than before treatment,treatment group decreased more significantly than the control group,the difference was statistically significant(P﹤0.05). [Conclusion]TCM directed through drug treatment and needle with warm warm acupuncture alone can significantly ease the pain of limb ,but TCM directed through drug treatment is better than warm needle acupuncture alone.
3.Construction of a recombinant adenovirus overexpressing human antimicrobial peptide LL37 gene and its transfection into vaginal epithelial cells
Fujin SHEN ; Xuexian XU ; Limei ZHOU
Chinese Journal of Tissue Engineering Research 2016;20(51):7697-7702
BACKGROUND:LL37, the only antimicrobial peptide of the cathelicidin family identified from the human, not only promotes the proliferation of endothelial cel s, but also plays an important role in angiogenesis and re-epithelialization.
OBJECTIVE:To construct a recombinant adenovirus overexpressing human antimicrobial peptide LL37 gene, and to detect the expression and secretion of LL37 after transfected into the canine vaginal epithelial cells.
METHODS:The cDNA encoding LL37 was amplified by PCR. Recombinant adenovirus expression plasmid encoding LL37 and green fluorescent protein (EGFP) was constructed, and identified using restriction endonuclease technology and DNA sequencing method. Adenovirus particles were generated by cotransfecting the 293-packaging cel line. The adenovirus were col ected, amplified and concentrated, and viral titers were determined by end-point dilution assay by applying serial dilutions of the purified viruses to 293 cel s. Primary cultured canine vaginal epithelial cel s were transfected by the recombinant adenovirus. The transfection efficacy was observed by fluorescence microscope, and the cultured supernatant was col ected to determine the expression of LL37 by ELISA method at 1, 2, 3, 5 and 7 days after transfection.
RESULTS AND CONCLUSION:The adenovirus vector GV314-LL37 with the titer of 3×109 pfu/mL was successful y constructed and identified by DNA sequencing methods. Canine vaginal epithelial cel s were successful y isolated and cultured and grew stably. After transfection, vaginal epithelial cel s could express the EGFP and LL37 efficiently in a time-dependent manner detected by fluorescence microscope and ELISA method. The transfection efficacy of EGFP reached to 89%at 72 hours. The level of LL37 in the cel culture supernatant in the transfection group was significantly higher than that in the control group, the highest expression of LL37 was found at 3 days that lasting for 7 days. In conclusion, the recombinant adenovirus overexpressing human antimicrobial peptide LL37 gene is successful y constructed, which can express and secrete LL37 after transfected into canine vaginal epithelial cel s, providing a foundation for constructing the tissue-engineered vagina possessing anti-infection and neovascularization.
4.Compatible Stability of Moxifloxacin Hydrochloride and Sodium Chloride Injection with Four Kinds of Antihemorrhagic Drugs
Jingping SHEN ; Limei ZHANG ; Chaoli LUO
China Pharmacy 1991;0(02):-
OBJECTIVE:To observe the compatibility of moxifloxacin hydrochloride and sodium chloride injection with four kinds of antihemorrhagic drugs(etamsylate injection,aminomethylbenzoic acid injection,vitamin K1 injection,and aminocaproic acid injection).METHODS:The concentration of moxifloxacin in the mixture of Moxifloxacin Hydrochloride and sodium chloride injection with four kinds of antihemorrhagic drugs at 25℃ and 37 ℃ were determined by UV-spectrophotometry and dual wavelength spectrophotometry within 8 h.The changes of the mixture in appearance and pH were also observed.RESULTS:The mixture of moxifloxacin hydrochloride and sodium chloride injection with four kinds of antihemorrhagic drugs experienced no obvious changes in both contents of moxifloxacin and pH and appearance.CONCLUSION:The mixture of moxifloxacin hydrochloride and sodium chloride injection with four kinds of antihemorrhagic drugs was stable in contents of moxifloxacin and property.However,further studies remain to be done to investigate whether there are changes in the contents of the other four injections.
5.Relationship between ApoE gene polymorphism and type 2 diabetes mellitus with its nephropathy in Chinese
Hailian SHEN ; Limei LIU ; Kunsan XIANG
Chinese Journal of Diabetes 1994;0(01):-
0.05).Conclusion In Chinese,ApoE allele ?2 may be a risk factor for developing diabetic nephropathy complication.No correlation between ApoE gene polymorphism and type 2 diabetes mellitus was found in Chinese.
6.A Comparative Study of Performances on the Open -set Monosyllable Test of Typical Children and Hearing Impaired Children at Age 3
Min SHEN ; Wenfang ZHENG ; Xiaoyue LU ; Limei YU
Journal of Audiology and Speech Pathology 2013;(5):460-464
Objective The present study analyzed the performances of hearing impaired children and normal hearing children at age 3 on the open set monosyllables test to provide reference for rehabilitation .Methods 30 typi-cal children and hearing impaired children at age 3 were randomly selected and tested using the open -set monosylla-ble test in evaluation of auditory response to speech (EARS) .Results ① There were significantly differences be-tween different test items in both groups ,the decreasing order of the score was tone> vowel>consonant>word(P<0 .01) ,and the scores on vowels ,consonants and words of hearing -impaired children were respectively signifi-cantly lower than that in normal hearing children(P<0 .001) .②There were similarities and differences between the mistakes of typical children and hearing impaired children .Blade-palatals and laterals in both groups achieved the lowest accuracy .While the accuracies on bilabials ,labiodentals ,nasals and plosives were highest in typical children , the accuracy on velar was highest in hearing impaired children .And the accuracies of consonants and nasal vowels on each place and manner of articulation in hearing -impaired children were significantly lower .Conclusion The study showed that the performances on vowels ,consomants and words of hearing -impaired children aged 3 in the open set monosyllables test were poorer than that in normal hearing children .The main errors were between the same places or methods of articulation ,especially for Blade -palatals and laterals .It is possible related to the deficiency of lan-guage input with the hearing impairment and the age with HA/CI .
7.Study on dissolution of three active components in Shexiang Baoxin Pill
Hongwei HE ; Ming SHEN ; Limei HAN ; Jianxin WANG
Chinese Traditional Patent Medicine 1992;0(08):-
AIM: To study the dissolution of ginsenoside Rb1,cinnamic acid and borneol in traditional Chinese medicine Shexiang Baoxin Pill(Moschus,extract of Radix et Rhizoma ginseng,Calculus Bovis artifactus,Cortex Cinnamomi,Styrax,Venenum Bufonis and Borneolum syntheticum). METHODS: The in vitro dissolution of active components in Shexiang Baoxin Pill was performed with paddle method. HPLC was used for determination of ginsenoside Rb1 and cinnamic acid,and GC for borneol. RESULTS: The analytic method above was easy to carry out,the requirement of the specificity,accuracy,precision and stability could meet the needs of experiment well; the dissolution time T50 and Td of ginsenoside Rb1,cinnamic acid and borneol were 30. 90,33. 79 min,29. 73, 37. 11 min and 42. 38,48. 51 min respectively. CONCLUSION: The dissolution rate of three active components from Shexiang Baoxin Pills was fast and the analytic methods established in this study could be used to evaluate the quality of the preparation.
8.Effect of ganglioside on spatial learning and memory of rats following radiative encephalopathy
Yamei TANG ; Yinyin ZHANG ; Limei WANG ; Songhua XIAO ; Jun SHEN ; Yigang XING
Chinese Journal of Tissue Engineering Research 2005;9(16):254-256
BACKGROUND: Memory loss is the main presentation during the earlier stage of radiative eneephalopathy, and it was reported that ganglioside (GM1) played important role in neural rehabilitation, particular in the improvement of memory.OBJECTIVE: To study the improving effect of GM1 on spatial learning and memory retardation in rats following radiative encepholopathy. DESIGN: Randomized control and comparative observing study based on the experimental animals.SETTING: Department of Neurology and Department of Radiation of Second Affiliated Hospital of Sun Yat-sen University.MATERIALS: This study was carried out at the Laboratory of the Second Hospital Affiliated to Sun Yat-sen University between March 2001 and May 2002. Tctally 80 SD rats were randomly selected and divided into control group, GM1 treatment group, physiological saline group and non-intervention group with 20 rats in each group.INTERVENTIONS: Rats in GM1 group, physiological saline group and non-intervention group subjected to head 60Coγ irradiation of 7Gy each time after anesthesia, once a day for consecutive 6 days, and the total dosage was 42Gy while rats in control group did not receive irradiation after anesthesia. Rats in GM1 and physiological saline(PS) group were given intraperitoneal injection of GM1 and physiological saline of 30 mg/kg respectively at 1 hour after each time of radiation, once a day for consecutive 6 days but not in control group and non-intervention group. Evaluation: ①After irradiation, morris water labyrinth navigation test was used to assess the capability of learning and memory of rats by the time for reaching platform (latency); ② Spatial searching test was used to detect their spatial memory after learning how to reach the platform by recording the way of rats searching the platform in 120 s and calculating the percentage of swimming distance in platform quadrant in the total distance; ③ After labyrinth test, brains were taken out of the rats in GM1 group, PS group and non-intervention group for observing the histological and pathological changes in rat brains.RESULTS: ① The latency become stable form onset of the 4th day in each group. On the 5th day, the searching platform latency in GM1 group was(13.6±1.4) s, shorter than(17.1±2.9) s of PS group and [(15.8±2.2) s, (P<0.05)] of non-intervention group; ② Rats in GM 1 and control group were found capable of searching platform according to their spatial memory, presented by swimming trail most located in platform quadrant while rats in PS and non-intervention groups were found mostly swimming around the pool with moving trails distributed randomly. The percentage of swimming distance in platform quadrant was found higher in GM 1 treatment group than in the PS group and non-intervention group, but lower than that in the control group; ③ Histological examination revealed slight neuronal degeneration in PS group, part of which was changes of vacuolar degeneration with cell shrank, chromosome concentrated and nuclei gathered aside, and the number of astrocytes also decreased; the pathological changes in non-intervention group and PS group were similar; in GM1 group, part neurons became smaller with peripalsm turning red but the pathological changes, such as the number of cells,neuclei shrank and gathered aside, and vacuolar changes were less than those of the former two groups.ONCLUSION: Radiative encephalopathy would result in obvious learning nd memory impairments in rats but histological and pathological changes due o brain radiation injury can be attenuated with the treatment of GM1, implying that GM1 may play important role in the improvement of radiation-induced spatial learning and memory loss.
9.Screening and characterization of human phage antibody to permethrin
Weina MA ; Xuelin LIU ; Hongbin SONG ; Jianliang SHEN ; Youzhang HUANG ; Lizhong GONG ; Dan XIANG ; Limei ZANG
Journal of Chinese Physician 2010;12(11):1441-1444
Objective To screen permethrin human single-chain variable region (scFv) antibody for aims of developing rapid detection kit. Methods Phage display technology was used in this study. Permethrin was solid phase coated on Nunc plate as antigen. Semi-synthetic single-chain variable region of human antibody library technology was applied, and single chain variable region was screened from phage antibody library after 3 rounds "adsorption - elution - amplification" of the selection process. 100 clones were random selected as resistance to permethrin clones , enzyme-linked immunosorbent assay (ELISA), crossreactivity and competitive inhibition experiments were used to validate permethrin binding activity with strong scFv clones from the selected phage antibody clones plasmid. The plasmid was digested with restriction enzyme Sfi Ⅰ / Not Ⅰ and subcloned into pCANTAB5E vector. After transformed into E. coli XL1BIue, the plasmid was identified by restriction enzyme analysis. Results After screening in 100 clones, 18 clones had high ELISA absorbance values ( A value) at 490nm wavelength ( A490nm), then bovine serum albumin (BSA) cross-reactions identified five weak cross-reaction. Combined with the triplicate ELISA and competitive inhibition experiment results, one positive clone was acquired at last. And this clone was subcloned into pCANTAB5E vector and transformed into competent cells XL1-Blue. Conclusion Plasmid fragment was consistent with the purpose, which provided the foundation for further study of its specific affinity.
10.The molecular basis of the characteristics of the serum auto-fluorescent spectrum of patients with ovarian cancer and the influence of surgery on it
Lihua QIAO ; Limei XIA ; Suqing YAN ; Yanqin SHEN ; Kejun NAI ; Lifang MA ; Lingyan JIANG
Cancer Research and Clinic 2016;28(1):15-20
Objective To explore the molecular basis of the characteristics of the serum auto-fluorescent spectrum in patients with ovarian cancer and the changes that might be induced by surgery. Methods Using fluorospectrophotometer and 300nm excitation light,the serum auto-fluorescent spectrum of 84 patients with ovarian cancer before and after the surgery and 30 healthy people were detected. Meanwhile, the serum tumor signs (CEA, CA199 and CA125), hemoglobin and plasma albumin level of all patients with ovarian cancer were detected. Their correlation with the fluorescence spectral characteristic parameters were analyzed. Results Compared with healthy people, the serum auto-fluorescent spectrum in patients with ovarian cancer exhibited purple-shifted position of λ2 peak and red shift in λ4 peak,had higher peak extent inλ1, λ2, λ4 and λ6 peak, and larger peak area of λ1, λ2, λ3, λ4 and λ6. Compared with those in ovarian cancer patients before surgery, the serum auto-fluorescent spectrum in these patients after operation had red shifts in λ1, λ2 and λ3 peak, lower peak extent in λ1, λ2, λ3 and λ4, and smaller peak area in λ1, λ2, λ3,λ4 and λ6 peak. In ovarian cancer patients, the serum level of CEA was positively correlated with the λ2 peak extent and the peak area of λ2 and λ3, while the serum level of CA125 was positively correlated with the peak extent of λ1-λ4 and λ6 and the peak area of λ1-λ3. The serum level of CA199 was negatively correlated with the λ2 position and positively correlated with the peak extent of λ1-λ6 and the peak area ofλ1-λ3 and λ6 in patents with ovarian cancer. Besides, the serum albumin was positively correlated with theλ2 peak position and negatively with the peak extent of λ1-λ6 and the λ1-λ3 peak area, while the level of hemoglobin was positively correlated with λ1 peak position. Conclusions The elevated serum tumor markers and lower albumin (plasma) level lead to the changes of the serum autofluorescence spectra characteristic parametersin in patients with ovarian cancer.These changes can be modestly corrected by surgery.