1.The determination of immune functions of mouse experimental pyelonephritis infected with c. albicans
Li WANG ; Shu WANG ; Shao-Lun ZHANG ;
Chinese Journal of Immunology 1985;0(02):-
A pyelonephritis model of mouse is made by c. albicans infection. The determination of im-mune functions in model show that, both proliferation response of T cell to ConA and IL-2 activ-iting of spleenocytes of model animal to inductionwith ConA increased at 30 days after injected.The proliferation response of B cell to stimulation with LPS inhanced from 15 through 30 days,primary Ab response of model animal to SRBC stimulation inhanced between 15-30 days afterimmunization. DTH response to stimulation with c. albicans protein Ag raised since 15 days andup to peak at 30 days. Agglutination titer of serum raised up 15 days, and remained at higherlevel untill 30 days.
2.Immunotherapy for the rheumatoid arthritis-associated coronary artery disease: promise and future
Wang LUN ; Zhang YANG ; Zhang SHU-YANG
Chinese Medical Journal 2019;132(24):2972-2983
Objective:To review the latest progress on the pathogenic mechanism and management of rheumatoid arthritis (RA)-associated coronary artery disease (CAD),and propose advice on future management optimization as well as prospects for research and development of new therapeutic regimen.Data sources:This study was based on data obtained from PubMed up to May 2019 using various search terms and their combinations,including coronary artery disease,myocardial ischemia,cardiovascular diseases,RA,rheumatic diseases,treatment,therapy,strategies,immunotherapy,inflammation,and anti-inflammation.Study selection:All retrieved literature was scrutinized,most relevant articles about the pathogenic mechanism and clinical management,especially anti-inflammatory therapy of RA-associated CAD were reviewed.Results:RA is an immune-mediated chronic inflammatory disease which has a great social disease burden.In addition to typical arthritic manifestations,RA also affects extra-articular tissues and organs,within which the involvement of the cardiovascular system,especially incorporating CAD,is the leading cause of death for patients with RA.Recently,numerous basic and clinical studies have been carried out on the mechanism of CAD development and progression under the inflammatory cascade of RA.The effect of traditional RA drugs on CAD risk management has been gradually tariffed,and more emerging biologic agents are being explored and studied,which have also achieved satisfactory outcomes.Furthermore,with the success of the CANTOS clinical trial,novel anti-inflammatory therapy for the prevention of cardiovascular disease is believed to have a broad prospect.Contusions:RA is an independent risk factor for CAD,which mainly results from the underlying inflammatory cascade;therefore,anti-inflammatory therapy,especially the emerging novel biologic drugs,is important for CAD management in patients with RA and may also be a promising approach among the general population.
3.Primary study of arginine as feed attractants on Whitmania pigra.
Jia WANG ; Qiao-Sheng GUO ; Hong-Zhuan SHI ; Hong LIU ; Wei-Lun QIAN ; Shu-Yu DUAN ; Tian-Hua GENG
China Journal of Chinese Materia Medica 2014;39(19):3727-3730
The effects of the feed attractants on Whitmania pigra were studied. The average weight of Wh. pigra were 5.0 g. Arginine was selected as feed attractants, xanthan gum was selected as feed substrate. The times of Wh. pigra going into the inducing room were recorded. The water temperature was 22-25 degrees C during the whole experiment. Arginine that had better inducing effect was chosen to carry on in the gradient experiment. The results showed that the best inducing effect was found when the added amount of arginine was 0.3%, which was close to the arginine content of the natural body fluid of Wh. Pigra and Bellamya purificata, 2.97 mg x g(-1).
Animal Feed
;
analysis
;
Animals
;
Arginine
;
analysis
;
metabolism
;
Body Weight
;
Feeding Behavior
;
Leeches
;
growth & development
;
physiology
4.Detection of Brain Neurotransmitters in Patients with Vasovagal Syncope with Encephalofluctuogram Technology
Jun XIAO ; Lin WANG ; Chaoying ZHU ; Hongmei LI ; Lun SHU ; Hongling XU ; Yusong GUO ; Chao HU ; Junxian XUE ; Xin CHEN
Chinese Journal of Rehabilitation Theory and Practice 2017;23(3):349-351
Objective To observe the changes of brain neurotransmitters in patients with vasovagal syncope (VVS) with encephalofluc-tuogram technology (ET). Methods From August, 2015 to December, 2016, 30 patients with VVS were selected as case group, 30 controls matched with sex and age were selected from the outpatients without syncope. They were detected the function of gamma aminobutyric acid (GABA), glutamate (Glu), 5-hydroxytryptamine (5-HT), acetylcholine (Ach), norepinephrine (NE) and dopamine (DA) with ET. Results There was no significant difference between the two groups in the values of GABA, Glu, 5-HT, Ach and DA (t<1.680, P>0.05), while the values of NE was higher in the case group than in the control group (t=-3.552, P<0.001). Conclusion VVS may be related to the high level of activity of NE in the brain.
5.Numerical simulation of streaming potential distribution in cancellous bone
Journal of Medical Biomechanics 2015;30(2):E137-E142
Objective To analyze the pressure-driven streaming potential in a cancellous bone meso-mechanical model with numerical simulation, so as to understand characteristics of streaming potential distributions in cancellous bone. Methods Based on the control equations of electric field and fluid, the finite element method was used to calculate the streaming potential in the cancellous bone model when subjected to pressure. Results The streaming potential near the solid surface of the model was relatively large (about 43.4 μV), while the streaming potential away from the solid surface was smaller (about 19.7 μV). Pressure and Zeta potential had a significant impact on the streaming potential of the model, presenting a linear relationship with the streaming potential. The streaming potential was greatly affected when the ion concentration was low, whereas the effect on the streaming potential was small when the ion concentration was high. Conclusions This research finding provides a theoretical reference for prevention and treatment by stimulation methods of electric current and electromagnetic fields in clinical fractures, senile osteoporosis and other bone diseases.
6.Intestinal Stricture in Crohn's Disease.
Chen Wang CHANG ; Jau Min WONG ; Chien Chih TUNG ; I Lun SHIH ; Horng Yuan WANG ; Shu Chen WEI
Intestinal Research 2015;13(1):19-26
Crohn's disease (CD) is a disease with chronic inflammation of unknown etiology involving any part of the gastrointestinal tract. The incidence and prevalence of CD are increasing recently in Asia. Half of the CD patients will have intestinal complications, such as strictures or fistulas, within 20 years after diagnosis. Twenty-five percentage of CD patients have had at least one small bowel stricture and 10% have had at least one colonic stricture and lead to significant complications. Most of these patients will require at least one surgery during their lifetime. Early diagnosis and evaluation with adequate managements for the patients can prevent disability and mortality of these patient. Here, we reviewed the current incidence of CD with stricture, the etiology of stricture, and how to diagnose and manage the stricture.
Asia
;
Colon
;
Constriction, Pathologic*
;
Crohn Disease*
;
Diagnosis
;
Disease Management
;
Early Diagnosis
;
Fistula
;
Gastrointestinal Tract
;
Humans
;
Incidence
;
Inflammation
;
Intestines
;
Mortality
;
Prevalence
7.Staging Based Strategies and Practice for Prostate Cancer.
Zhi-qiang CHEN ; Shu-sheng WANG ; Zun-guang BAI ; Zhao-hui WANG ; Li-guo LV ; Chi-ming GU ; Song-tao XIANG ; Rui-xin DAI ; Shou-lun ZHU
Chinese Journal of Integrated Traditional and Western Medicine 2016;36(6):749-752
Authors raised that staging based strategies and practice of integrative medicine (IM) by combining syndrome typing and disease identification, and choosing suitable measures in accordance with different persons and seasonal conditions after more than ten years' clinical practice and researches. Radical operation as prior (as evil eliminating) and strengthening vital qi in perioerative period are best strategy for promoting rapid rehabilitation of early stage prostate cancer patients. Strengthening body resistance to eliminate evil was used in treating advanced prostate cancer patients. For example, a comprehensive treatment program for hormone-dependent patients was combined with endocrinotherapy and Chinese herbs for synergisic efficacy-enhancing actions. In this way, these patients' quality of life (QOL) were improved and time to castration resistant prostate cancer (CRPC) was delayed, even some patients were clinically cured. There are lack of effective medicines and methods for CRPC patients. Greatly tonifying original qi is mainly used for improving their clinical symptoms and prolonging survivals. Practice has proved staging based strategies and practice of IM has favorable advantages in treating prostate cancer, especially showing prospect in prolonging survival and postponing progression of advanced prostate cancer patients. Besides, it also could provide beneficial considerations and inspiration for combination of syndrome typing and disease identification.
Disease Progression
;
Humans
;
Male
;
Medicine, Chinese Traditional
;
Neoplasm Staging
;
Prostatic Neoplasms, Castration-Resistant
;
diagnosis
;
Quality of Life
8.Dental pulp repair with dental pulp stem cells by construction of tissue-engineered dentin-pulp complex
Lu WANG ; Xin MA ; lun Yao HAN ; dong Ya LI ; wen Shu LUO
Chinese Journal of Tissue Engineering Research 2017;21(33):5354-5359
BACKGROUND: Studies have shown that dental pulp stem cells have high proliferation and multi-directional differentiation abilities and can differentiate into a variety of cells under certain conditions. At present, the use of dental pulp stem cells to construct tissue-engineered dentin-pulp complex is expected to become a new strategy for human dental defect repair . OBJECTIVE: To observe the effect of dental pulp stem cells on the repair of rat tooth defects by construction of tissue-engineered dentin-pulp complex. METHODS: Twenty-four Sprague-Dawley rats were used to make animal models with dental pulp removal, and then model rats were randomly divided into model group and transplantation group. Rats in the transplantation group were subjected to tissue-engineered dentin-pulp complex transplantation, and those in the model group given no treatment. Tooth samples were collected at 3, 5, 7 weeks post transplantation and observed using hematoxylin-eosin staining and immunofluorescence staining. The dentin thickness of rats was measured by Image Pro Plus 6.0 image software system. RESULTS AND CONCLUSION: (1) Dental pulp cells was mostly spindle/oval-shaped and partially polygonal. The third generation of cells with long spindle shape showed fibrous growth and uniform morphology. Findings from immunohistochemical staining showed spindle-shaped deep-colored cells with oval nuclei stained as dark blue were identified as fibroblast-like cells, and were positire for vimtin. (2) Findings from hematoxylin-eosin staining showed vacuolar degeneration of the cells, and hbdestroyed pulp tissue and debris, irregular cord-like tissue, and a large amount of red blood cells and inflammatory cells in the pulp cavity, accompanied by clearly visible vascular dilation. Seven weeks after transplantation, a bundle of odontoblasts were visible in the matrix-like tissues of the dentin, and there was a distinct boundary between the original dentin and regenerated dentin. (3) Findings from immunofluorescent staining showed that after dentin-pulp complex transplantation, the number of cells in the pulp cavity increased significantly at 3 weeks, and there was also a substantial increase in dental pulp cells at 5 weeks that were distributed on the wall of the pulp cavity. Compared with the model group, the dentin thickness in the transplantation group was significantly higher at each time after transplantation (P < 0.05), and in the transplantation group, there was also a significant difference in the dentin thickness at different time points (P < 0.05). To conclude, the tissue-engineered dentin-pulp complex can promote dentin regeneration and repair.
9.Role of Circulating Fibrocytes in Cardiac Fibrosis.
Rong-Jie LIN ; Zi-Zhuo SU ; Shu-Min LIANG ; Yu-Yang CHEN ; Xiao-Rong SHU ; Ru-Qiong NIE ; Jing-Feng WANG ; Shuang-Lun XIE ;
Chinese Medical Journal 2016;129(3):326-331
OBJECTIVEIt is revealed that circulating fibrocytes are elevated in patients/animals with cardiac fibrosis, and this review aims to provide an introduction to circulating fibrocytes and their role in cardiac fibrosis.
DATA SOURCESThis review is based on the data from 1994 to present obtained from PubMed. The search terms were "circulating fibrocytes " and "cardiac fibrosis ".
STUDY SELECTIONArticles and critical reviews, which are related to circulating fibrocytes and cardiac fibrosis, were selected.
RESULTSCirculating fibrocytes, which are derived from hematopoietic stem cells, represent a subset of peripheral blood mononuclear cells exhibiting mixed morphological and molecular characteristics of hematopoietic and mesenchymal cells (CD34+/CD45+/collagen I+). They can produce extracellular matrix and many cytokines. It is shown that circulating fibrocytes participate in many fibrotic diseases, including cardiac fibrosis. Evidence accumulated in recent years shows that aging individuals and patients with hypertension, heart failure, coronary heart disease, and atrial fibrillation have more circulating fibrocytes in peripheral blood and/or heart tissue, and this elevation of circulating fibrocytes is correlated with the degree of fibrosis in the hearts.
CONCLUSIONSCirculating fibrocytes are effector cells in cardiac fibrosis.
Coronary Disease ; pathology ; Fibroblasts ; physiology ; Fibrosis ; pathology ; Heart Failure ; pathology ; Humans ; Hypertension ; pathology ; Myocardium ; pathology
10.Age-related changes of the redox state of glutathione in plasma.
Qiu-lin WANG ; Shu-ren WANG ; Yi DING ; Ke-jun PENG ; Xia LIN ; Xiao-rong QIAO ; Yi-lun LIU ; Chen-heng WU
Chinese Medical Journal 2005;118(18):1560-1563
Adult
;
Aged
;
Aging
;
metabolism
;
Female
;
Glutathione
;
blood
;
Glutathione Disulfide
;
blood
;
Humans
;
Male
;
Middle Aged
;
Oxidation-Reduction