1.The clinical significance of serum TNF-α and IL-6 level in lung cancer patients
Acta Universitatis Medicinalis Anhui 2001;(1):45-46
Objective To study the change and clinical implications of tumor necrosis(TNF-α) and interleukin-6(IL-6) in the lung cancer patients. Methods Serum TNF-α and IL-6 level in 55 of lung cancer cases and 40 in normal control group were assayed by ELISA. Results Serum TNF-α and IL-6 level were significantly higher in the lung cancer patients than in normal control(P<0.01). The activity of TNF-α and IL-6 in serum of the no operational patients (with lymphanode matastasis) was higher than the recurrent patients of post-operation (P<0.01). Conclusion The activity of serum TNF-α and IL-6 may be associated with development of the lung cancer. The determination of TNF-α and IL-6 levels in serum can help to observe the lung cancer state as a assistant monitor methods.
2.Advances toxicological research on occupational health and poison control
Chinese Journal of Pharmacology and Toxicology 2016;30(12):1419-1423
The number of chemicals that are synthesized each year has been steadily increasing. Chemicals are of immense benefits to mankind,many of which,however,have a significant negative impact on the environment as well as human health primarily due to their inherent chemistry and toxici?ty. Human exposure to numerous toxic chemicals takes place not only in the environment and but also in the workplace. Therefore,new approaches to toxicology need to developed. A milestone in this regard is the versions of the US National Research Council ″Toxicity Testing in the 21st Century:a Vision and a Strategy ″ and ″Science and Decisions:Advancing Risk Assessment ″. The versions require a radical paradigm shift in the approach to safety assessment and in the traditional procedure where animal experiments used to be the dominating technology. The future of toxicology suggests a new conceptual framework within which in vitro and in silico approaches based on human materials are used to under?stand disease pathways at multiple biological levels that are analogous to adverse outcome pathways in toxicology. This paper focuses on the many challenges and issues that need to be solved in this area.
4.Study of cell-mediated immune response induced by HPV DNA vaccine in combination with IL-15 expression plasmid
Chinese Journal of AIDS & STD 2007;0(05):-
Objective To investigate the effects of IL-15 eukaryotic expression plasmid on the Ag-specific immune responses induced by HPV 16 E7 vaccine in mice.Methods An eukaryotic expression plasmid encoding IL-15 gene coding region was constructed and named as pcDNA3.1IL-15.Female BALB/c mice were injected intramuscularly with pcDNA3.1-IL-15 and HPV16 E7 gene vaccine.After the immunization,the concentration of serum IFN-? were tested.Single-cell suspensions of splenocytes were prepared from mice and were re-stimulated with HPV16 E7 protein.Then,the T cell proliferation assay was measured by the MTT method.Results The concentration of serum IFN-? in mice after co-injection with pcDNA3.1-IL-15 and pcDNA3.1-E7 was raised to 414.1pg/ml,which was significantly higher than that of mice co-injected with pcDNA3.1 and pcDNA3.1-E7 or mice injected with pcDNA3.1-E7 only(P
6.Fulcrum-bending radiograph and surgical treatment of scoliosis associated with Chiari malformation and/or syringomyelia
Orthopedic Journal of China 2006;0(05):-
[Objective] To evaluate the value of Fulcrum-bending radiograph and new treatment strategy to the scoliosis with Chiari malformation and/or syringomyelia,and to analyze the effect of operation.[Methods]Eighteen cases suffering from scoliosis with Chiari malformation and/or syringomyelia were divided into 2 groups for surgical treatment.(1)Group 1:six cases had scoliosis with Chiari malformation and/or syringomyelia without obvious neurological impairment.Their scoliosis was corrected with anteroposterior instrumentation afer one week of Halo's traction.(2)Group 2:another 12 patients having similar scoliosis underwent posterior orthopedic operation according to the result of preoperative suboccipital Fulcrum-bending radiograph.[Results]In 6 patients who underwent opration after traction,the average frontal correction rate was 61%.In another 6 cases having soft scoliosis with only posterior operation,the average frontal correction rate was 60%,and the result of opration came close to the Fulcrum-bending radiograph's.But in 6 cases having rigid scoliosis with only posterior operation,the average frontal correction rate was 52%.One patient had nervous lesion and gradually recovered.There existed excessive rectification.[Conclusion]Patients with soft scoliosis with Chiari malformation and/or syringomyelia without obvious neurological impairment can be operated on according to Fulcrum-bending radiograph without preoperative traction,and the therapeutic effect is similar to classic operative result.
7.Identification of the Images of Chinese Herb Slices with Deep Convolutional Network
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(2):218-222
It is of great importance that deep learning of computer for the automate identification of the two-dimensional image of Chinese herbal slices is valuable in the application to medicine,production and education.Traditional methods usually extract low-level image features for the identification,but they cannot give robust recognition results under complex backgrounds.Therefore,higher level image representation is necessary in the image identification.A public Chinese herbal medicine database was constructed with 50 common categories and 2,554 images in total,for training and evaluating our recognition model.Then,the sofimax loss function was adopted to train the convolutional neural network model.As a result,the convolutional neural network can achieve the average precision of 70% under all the 50 medicine herbal classes.In conclusion,convolutional neural network can obtain good results in image identification with complex backgrounds and mutually occluded herbal slices,which has promising potential for future applications.
8.Effects of Compound Ligusticum chuanxiong Drop Pill on Hemorheology and Blood Gas in Model Rats with Diabetic Nephropathy
China Pharmacy 2017;28(7):909-912
OBJECTIVE:To explore the effects of Compound Ligusticum chuanxiong drop pill on hemorheology and blood gas in model rats with diabetic nephropathy(DN). METHODS:60 rats were randomly divided into normal control group,model group, positive control group [Irbesartan tablet,0.013 g/(kg·d)] and Compound L. chuanxiong drop pill high-dose,medium-dose,low-dose groups [0.4,0.2,0.1 g/(kg·d)],10 in each group. Except for normal control group,rats in other groups were given high-sugar high-fat feed and intraperitoneally injected streptozotocin to reduce DN model. After 7 d modeling,rats in each group received relat-ed drugs intragastrically,once a day,10 mL/kg;normal control group and model group received equal volume of purified water in-tragastrically. After 64 d,hemorheology indicators [whole blood viscosity(high-shear,medium-shear and low-shear),plasma viscosi-ty,whole blood reduced viscosity] and blood gas indicators(carbon dioxide partial pressure,oxygen partial pressure,hemoglobin content,oxygen saturation,ratio of oxygenated hemoglobin to total protein) of rats were determined,hematoxylin-eosin staining was used to observe the pathological changes in kidney tissue. RESULTS:Compared with normal control group,hemorheology indi-cators and carbon dioxide partial pressure in model group were significantly increased(P<0.05 or P<0.01),oxygen partial pres-sure,hemoglobin content,oxygen saturation,ratio of oxygenated hemoglobin to total protein were significantly decreased(P<0.05 or P<0.01),with severe kidney damage. Compared with model group,except the improvement of carbon dioxide partial pressure, oxygen partial pressure,hemoglobin content in rats were not significant in Compound L. chuanxiong drop pill low-dose group,the above-mentioned indicators in other medicine groups were significantly improved(P<0.05 or P<0.01);the kidney tissue damage was improved to varying degree. CONCLUSIONS:Compound L. chuanxiong drop pill can significantly improve the hemorheology indicators of DN model rats,reduce blood viscosity,improve microcirculation and capacity of the blood to transport oxygen,and has certain improvement effect on kidney tissue morphology of DN rats.
9.Clinical Experience of Professor Shen Hong for Treating Chronic Atrophic Gastritis
Journal of Zhejiang Chinese Medical University 2015;(5):345-347
Objective] To summarize professor Shen Hong's clinical experience in treating chronic atrophic gastritis. [Method] By following the teacher clinic and sorting out the related medical materials, the author summarizes professor Shen Hong's academic experience of treatment of chronic atrophic gastritis, and for proven cases. [Result] Professor Shen Hong thinks that the essence of pathogenesis is the weakness of the spleen and stomach. Qi stagnation, damp stagnation and blood stasis are common pathological factors. The characteristic of the disease is deficiency in origin and excess in superficiality. The location of disease is in stomach, relating to liver and spleen. The principle of treatment should be strengthening the spleen and stomach. It is also very important to treat accompanying symptoms and balance property of Chinese medicines. Prof. Shen emphasizes the combination of disease and syndrome differentiation and the integration of TCM and western medicine. He attaches much weight to diet and psychotherapy. The medication is concise and the prescription changes flexibly with the permitted addition and subtraction. The clinical curative effect is satisfactory. [Conclusion] Professor Shen Hong 's experience is effective and worthy of inheritance and promotion.
10.Survey on psychological adaptability of medical undergraduate interns
Chinese Journal of General Practitioners 2012;(11):856-857
One hundred medical undergraduate interns were randomly selected to undergo a survey using self-designed questionnaire,95 students completed the questionnaire with a response rate of 95.0%.The results revealed that all interns receiving survey had psychological adaptability problems,57.9% of the interns were not adaptive to life well,67.7% had maladjustment of learning,63.2% had social maladjustment,65.3% had poor metal adaptability.The 47.4% of the interns felt very heavy stress and 36.8 % felt stress,only 15.8 percent felt less stress.The stress sources included seeking employment and pursuing career for clinical practice or academic training.The results showed that psychological adaptability is a common problem for medical undergraduate interns and the social stress sources would intervene the clinical training and study for them.The medical educators should pay attention to this problem and psychological counseling and other measures should be taken for medical interns.