1.Study of Antitumor Effect of Combination of CIK with DC both Pulsed by Breast Cancer Stem Cell Antigen in Mice Model with Tumor
Chunmiao PANG ; Yan LYU ; Wenwen SUN ; Yuling SI ; Hua PANG
Tianjin Medical Journal 2014;(6):554-557
Objective To investigate the tumor-inhibitory effect of cytokine-induced killer cells(CIK)co-cul-tured with dendritic cells (DC)pulsed by breast cancer stem cell antigen on the same tumor-bearing mice. Methods Breast cancer stem cells were isolated from the cell line of MCF-7/ADR and extract lyses antigen of the stem cell was saved. DC and CIK derived from peripheral blood mononuclear cells of healthy individuals were co-cultured and pulsed or un-pulsed by the above antigen lyses. This DC+CIK were injected to breast tumorbearing mice (BCSC-AP-DC+CIK group), and were used to compared with the common breast cancer cell antigen (rather than breast cancer stem cell antigen) pulsed DC+CIK group(AP-DC+CIK group), DC+CIK group, CIK CIK group and normal saline group(NS group). The tumor-inhibitory effect were evaluated and compared among all 5 groups through the tumor size, TdT-mediated dUTP nick end labeling test (TUNEL), examining expression level of bcl-2 and bax by immunohistochemistry. Results The tumor size in each group before and after therapy and the tumor size after therapy between each group was of significant difference(P<0.05). The maximum size is NS group(3.625±0.093)cm3 and BCSC-AP-DC+CIK group is minimum,which is (1.234±0.131)cm3. BC-SC-AP-DC+CIK group is of highest expression of bax and apoptotic index value, lowest bcl-2 expression in all 5 groups. Conclusion The CIK co-cultured with DC pulsed breast cancer stem cell antigen was more effective to induce apoptosis of breast cancer cells than those of CIK cells co-cultured with DC pulsed breast cancer cell antigen,CIK cells co-cultured with DC and CIK cells.
2.Infection of Oligochaetes, Limnodrilus hoffmeisteri (Annelida: Oligochaeta), in the Nasal Cavity of a Chinese Man.
Hongbin LIU ; Zhenming ZHANG ; Guangping HUANG ; Xiaolong GU ; Chunmiao WANG ; Yan WANG ; Zhimin LU
The Korean Journal of Parasitology 2017;55(1):77-79
The infection by Limnodrilus hoffmeisteri Claparède, 1862 (Oligochaeta: Tubificinae) in humans is relatively uncommon. The present report is to describe an incidental human infection with oligochaetes in the nasal cavity of a Chinese man, a 25-year-old man residing in Zhangjiakou city, Hebei province, China presenting with nose bleed, severe itching, continuous sneezing, and rhinorrhea. A lot of oligochaete worms were found in the nasal discharge of the patient. The detected worms were identified as Limnodrilus hoffmeisteri (Annelida: Oligochaeta) based on morphological and molecular characteristics. This incidental L. hoffmeisteri nasal infection is the first case in China and indicates that oligochaete worms can be encountered in humans.
Adult
;
Asian Continental Ancestry Group*
;
China
;
Epistaxis
;
Humans
;
Nasal Cavity*
;
Pruritus
;
Sneezing
3.Ribociclib: new antitumor drug of cyclindependent kinase 4/6 inhibitor
mei Yan WANG ; Chunmiao XUE ; wei Xiao YU ; ling Jun CAO
Drug Evaluation Research 2017;40(10):1520-1524
Ribociclib is an oral small molecule cyclindependent kinase 4/6 inhibitor,which inhibits tumor progression by inhibiting the conversion of tumor cells from G1 phase to S phase.The combination ofribociclib and letrozole was approved in the United States on March 13,2017 as a treatment for HR+/HER2-advanced and metastatic breast cancer patients.Clinical results showed that the drug on advanced and metastatic tumors had a significant inhibitory effect and could extend the survival of patients without deterioration compared with using letrozole alone.The incidence of adverse drug reactions is higher,but the tolerance is better.This article focuses on pharmacodynamics,pharmacokinetic,clinical results and adverse effects of this drug.
4.Study on the Structural Changes and Influencing Factors of Hospitalization Expenses of Diabetic Patients
Chunmiao YAN ; Lei SUN ; Xiaoying WANG ; Huaimin WANG ; Xiaohui LIU ; Weijun ZHANG ; Donghua TIAN
Chinese Health Economics 2024;43(3):33-38,52
Objective:By analyzing the cost change trend,internal structure change and main influencing factors of diabetes inpatients'hospitalization expenses,it provides empirical basis for promoting the reform of medical service prices,optimizing the internal structure of hospitalization expenses,effectively controlling hospitalization expenses,and reducing the economic burden of diabetes inpatients.Methods:Using the first page data of medical records of 13 426 diabetes inpatients in the target hospital from 2017 to 2021,it analyzes the structural change of diabetes inpatients'hospitalization expenses by using structural change degree and grey correlation degree methods,and analyzes the influencing factors of hospitalization expenses by using linear regression and BP neural network model.Results:Drug expenses and medical technology expenses are the top two in the proportion of total hospitalization expenses of discharged patients with diabetes,and they account for a large proportion in the total hospitalization expenses.The results of structural change and grey correlation show that drug expenses and medical technology expenses are these two factors that cause changes in the total hospitalization cost structure and have a high correlation with the total hospitalization cost,with a cumulative contribution rate of 90.50%.According to the results of linear regression and neural network model,the length of stay is the most important factor affecting the total cost of hospitalization of diabetes patients,followed by the number of operations/procedures and diagnoses.Conclusion:The internal composition of hospitalization expenses for diabetes patients is unreasonable.The proportion of drug expenses and medical technology expenses is too high.The proportion of medical and nursing expenses reflecting the technical labor value of medical personnel is relatively low.The structure of medical income needs to be further optimized.The length of stay is the most critical factor affecting the hospitalization expenses of diabetes patients.Reasonable control of the length of stay can effectively control the unreasonable growth of medical expenses and reduce the economic burden of diabetes patients.
5.Traditional Chinese Medicine Against Gouty Arthritis via Regulating Inflammatory Signaling Pathway: A Review
Donghua YU ; Yunhe SHI ; Yuqin LIANG ; Yan QI ; Yu WANG ; Shumin LIU ; Chunmiao YU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(7):244-251
Gouty arthritis (GA) is a metabolic disease caused by disorders of purine metabolism and/or abnormal excretion of uric acid in the body. Its pathogenesis is mostly related to dietary structure as well as excessive intake of protein, sugar and fat, and the clinical manifestations are joint redness, swelling, heat and pain, which seriously affect the daily life of patients. Therefore, it is urgent to carry out research on anti-GA drugs. Western drugs for the treatment of GA, such as colchicine, can relieve pain in the short term, but with obvious side effects in long-term treatment. Traditional Chinese medicine has definite efficacy and high safety in the treatment of GA and is more acceptable to patients than western medicine. Modern medical research has concluded that inflammatory factors, oxidative stress, apoptosis and intestinal dysbacteriosis are closely related to the pathogenesis of GA. In-depth research has found that single traditional Chinese medicine and its compounds can regulate Toll-like receptors/myeloid differentiation factor 88 (TLRs/MyD88) signaling pathway, NLR family pyrin domain containing 3 (NLRP3) inflammasome, nuclear transcription factor-κB (NF-κB) and other inflammatory signaling pathways, and further intervene in the downstream cytokines such as interleukin-1β (IL-1β), interleukin-2 (IL-2), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), peroxisome proliferator-activated receptor γ (PPARγ), nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor-α(IκB-α) and aspartate-specific cysteine protease 1 (Caspase-1) to reduce inflammatory factors and increase anti-inflammatory factors, thereby exerting the anti-GA role. Therefore, this paper summarized and elaborated the experiments of inflammatory response mediated by traditional Chinese medicines and their compounds via regulating inflammatory signaling pathways in recent years, which provides new ideas and theoretical basis for finding more related anti-inflammatory traditional Chinese medicines for the treatment of GA.