1.Effects of azelaic acid and tretinoin cream in the treatment of facial post-burn hyperpigmentation
Journal of Medical Postgraduates 2003;0(09):-
Objective:To investigate the method for treating facial post-burn hyperpigmentation. Methods: Forty-two patients with facial post-burn hyperpigmentation were randomly divided into two groups.Twenty-four subjects applied 15% Azelaic Acid cream combined with 0.025% Tretinoin cream daily to face,and eighteen subjects applied vehicle cream.At base line and six weeks of treatment,each subject's facial hyperpigmentation was assessed by area and colorimetric evaluations.Results:The facial post-burn hyperpigmentation of the Azelaic Acid and Tretinoin-treated subjects were significantly lighter after six weeks of therapy than those of the vehicle-treated subjects(?~(2)=10.94,P
2.Research advances of absent in melanoma 2 in the development of cancer
Journal of Medical Postgraduates 2017;30(5):542-545
Absent in melanoma 2 (AIM2) is a cytoplasmic protein, which can identify and combine with the cytoplasmic dsDNA to activate caspase-1, and promote the maturation and release of IL-1β and IL-18, or induce pyroptosis.AIM2 belongs to the innate immune system and is the first line of defense to protect the body against the invasion of alien microbes.After identifying the pathogenic microorganisms, the activation of the host signal caused the reaction, which started microorganisms.The activation of the host signal caused the reaction, which started the innate immune and acquired immune response.Research also suggests that AIM2 plays an important role in the occurrence and development of tumor, which was abnormally expressed in many malignant tumors such as prostatic cancer, colorectal cancer, breast cancer, nasopharyngeal carcinoma, oral squamous cell carcinoma, non small cell lung cancer, and AIM2 plays different roles in the progression of different tumor.This article will summarize the research progress of AIM2 in innate immunity and tumor development.
3.Detection of transfusion transmitted virus infection and genotypes in pregnant women
Chinese Journal of Obstetrics and Gynecology 2001;0(06):-
Objective To clarify the frequency, the routes of transmission from mother to infant, the correlation factors and distribution of genotypes of transfusion transmitted virus (TTV) infection. Methods Nested polymerase chain reaction (n PCR) was performed to detect TTV DNA and genotypes in serums and breast milks from 160 cases of pregnant women. Results TTV DNA in serum and breast milk was detected in 64 (40 0%) and 60 (37 5%) of 160 cases of pregnant women respectively. The positive rates of TTV DNA from HBV markers (+) and normal groups were 50 0%, 43 1% and 13 6%, 22 7% respectively in serums and breast milk. There were significant difference between the two groups ( P
5.Advances in the pathogenesis and treatment of febrile seizures
International Journal of Pediatrics 2016;43(1):36-40
Febrile seizures ( FS ) is a common convulsive disorder in infants and young children. It is clinically classified into simple febrile seizures(SFS)and complex febrile seizures(CFS). Although intensively investigated,it remains controversial on the etiology,pathogenesis,treatment,long-term prognosis of FS,even the definition itself is still under debate. This paper briefly reviews recent advances on the underlying mechanisms of FS,including involvement of genetic factors,role of ion channels,and immunologic and neurotransmitter dysreg-ulation. We also gathered some new insights on the treatment and prevention of FS,aiming to improve our under-standing of FS.
6.LOCALIZATION AND QUANTITATION OF ESTROGEN RECEPTORS IN SEVERAL TISSUES OF DIFFERENT STRAINS OF MICE BY AUTORADIOGRAPHY
Acta Anatomica Sinica 1953;0(01):-
The distributions of estrogen receptors in preoptic region of hypothalamus, anterior lobe of pituitary gland, mammary gland, thymus and liver of LACA and C57 BL strains of mice were studied by ~3H-estradiol and autoradiography in frozen sections.In both strains of mice, labelling index (LI) was more than 85% in preoptic region of hypothalamus and anterior lobe of pituitary gland, and average number of silver grains (AG) was more than 19. LI and AG of epithelial cells of mammary glands in LACA strain of mice were quite high, 96% and 12 respectively; but in C57BL strain of mice were only 5% and 5 respectively. A few hepatic cells and lymphocytes of thymus were labelled.According to the above results the reason of why mammary carcinoma of female LACA strain of mice and adenoma of pituitary gland of C57BL strain of mice could 15e easily induced by estrogenic hormones (estradiol valerate and hydroxyprogesterone caproate, EP), but no mammary carcinoma was induced in C57BL strain of mice by EP, and this can be partly explained by the presence of a large or few number of estrogen receptors. However, the presence of estrogen receptors was only a prerequisite but not a unique condition. Other factors should be considered, because many more estrogen receptors were present in preoptic region of hypothalamus of both strains of mice and anterior lobe of pituitary gland of LACA strain of mice, but few or no tumors could be induced by EP.
7.THE STUDY OF RAT MYOGENIC SATELLITE CELLS DIFFERENTIATION TO MYOBLASTS IN VITRO
Acta Anatomica Sinica 1957;0(04):-
Objective To investigate the whole differentiating process of myogenic satellite cells in vitro,and the expression of N-ACh receptors.Methods Skeletal muscle satellite cells were isolated by trypsin digestion in vitro and purified by preferential attachment method.The cells were observed morphologically and identified by ?-sarcomeric actin,desmin and skeletal myosin antibodies.Contraction of myotubes was observed after adding ACh in the culture medium, N-AChRs in myotube were also be identified by bungarotoxin.Results Cultured satellite cells in vitro differentiated into myoblasts and fused to form myotubes later.These cells were positive by ?-sarcomeric actin, skeletal myosin and desmin antibodies' staining.Adding ACh directly in the medium stimulated the contraction of myotubes.No obvious expression of ACh receptors was observed on the surface of satellite cells.Cluster of receptors aggregated on myotubes from neonatal rats' satellite cells cultured in differentiation media.Conclusion The myotubes differentiated from myogenic satellite cells have the function of contraction.N-ACh receptors were synthesized gradually during the process of differentiation.
8.Design of Pyrolyzing Furnace Temperature Measurement Node Based on WSN Technology
Chinese Medical Equipment Journal 2004;0(09):-
Objective To propose a design of pyrolyzing furnace temperature measurement node based on WSN technology. Methods The chip MAX6675 was applied in the temperature measure circuit in the system. It simplified the design of hardware and software and improves precision of control system. The chip CC2420 was adopted as the frequency transceiver. The operating system TinyOS which was developed by the University of California at Berkeley was also adopted. Results We accomplished the design of temperature data acquisition module,wireless communication module and power management module,which had many features,such as simple structure,small size and high precision. Conclusion The node has effectively improved the functional reliability of pyrolyzing furnace,giving a solid base to promote the application of WSN technology on medical vehicle.
9.The significance of multiple detector spiral CT multi-phase enhanced scan in differentiating liver tumors
China Medical Equipment 2017;14(1):71-73,74
Objective:To explore the significance of multiple detector spiral CT multi-phase enhanced scan in differentiating liver tumors.Methods: A total of 141 patients, during from March 2011 to May 2015 in our hospital, pathologically diagnosed as liver tumors were selected to undergo multiple detector spiral CT multi-phase enhanced scan. The different performances and results in CT plain and enhanced scan for diagnosing liver cancer were observed and the sensitivity of CT multi-phase enhanced scan was analyzed.Results: 93 cases were found in CT plain scan; 141 cases were found in the arterial phase, 112 cases were found in portal venous phase and 108 cases were found in extension period in CT multi-phase enhanced scan. The lesion detection rate of CT plain scan was significantly lower than whichever of CT multi-phase enhanced scan(P<0.05); under CT multi-phase enhanced scan, the majority of lesions were typical imaging and could be diagnosed. Using CT multi-phase enhanced scan, the sensitivity of hemangiomas was 88.9%, abscess was 71.4%, focal nodular hyperplasia was 83.3%, primary liver cancer was 81.6%, and liver metastases was 97.8%; the total accuracy was 88.7%.Conclusion: The multiple detector spiral CT multi-phase enhanced scan can accurately identify liver tumor lesion stages, and it can contribute to further clinical treatment.
10.Applying Research-based Teaching to Systematic Anatomy Experiment Teaching
Chinese Journal of Medical Education Research 2002;0(01):-
Nowadays,research-based teaching is a teaching model,which has been accepted and applied universally.This paper deals with the characteristics of research-based teaching,which has been applied into systematic anatomy experiment teaching.