1.Effect of T cell vaccination on cyclophosphamide-treated diabetes in NOD mice
Caifeng YAN ; Zhili ZHANG ; Qinghua GUO
Chinese Journal of Endocrinology and Metabolism 2001;17(1):11-14
Objective To explore the prophylactic effect of T cell vaccination (TCV) on type 1 diabetes. Methods 6-week-old nondiabetic femele NOD mice were vaccinated intraperitoneally with the attenuated, activated T lymphocytes isolated from the spleen of 4-week-old nondiabetic NOD mice, 18-week-old newly diabetic NOD mice and 32-week-old long-term diabetic NOD mice. The incidence of cyclophosphamide-treated diabetes, inflammatory score of insulitis in NOD mice as well as T lymphocyte subset changes in spleen and thymus were determined after TCV. Results TCV was able to reduce the incidence of cyclophosphamide-treated diabetes, to alleviate insulitis, to increase the percentage of CD8+ T lymphocyte subset in spleen and CD4- CD8+ simple-positive T lymphocyte in thymus, and to decrease the percentage of IL-2R+ T lymphocyte and CD4+/CD8+ rate in spleen. Conclusion TCV may decrease host autoimmunity, which seems related to the changes of T lymphocyte subsets in spleen and thymus and prophylactic effect on diabetes.
2.The significance of detection of urinary podocalyxin, nephrin and monocyte chemoattractant protein-1 for diabetic nephropa-thy in newly diagnosed T2DM patients
Xiaoling QIAN ; Caifeng YAN ; Rui ZHANG
Journal of Chinese Physician 2014;(2):196-199
Objective To explore the significance of combined detection of urinary podocalyxin (PCX), nephrin and mono-cyte chemoattractant protein-1(MCP-1) for diabetic nephropathy in newly diagnosed type 2 diabetic patients.Methods A total of 132 newly diagnosed type 2 diabetes mellitus (T2DM) patients and 36 healthy subjects were recruited .The concentrations of urinary PCX (UPCX), nephrin (UNephrin) and MCP-1(UMCP-1) were measured with enzyme-linked immunosorbent assay (ELISA), and urina-ry UAE ( UAlb) concentration was measured with turbidimetric immunoassay method .All the results were shown by dividing the urine creatinine ( UCR) concentration in the same sample .The comparisons among UAlb/UCR, UPCX/UCR, UNephrin/UCR, and UMCP-1/UCR among groups were investigated .The correlation among UAlb/UCR, UPCX/UCR, UNephrin/UCR and UMCP-1/UCR was in-vestigated in T2DM patients.The comparison among positive rate of UMCP-1/UCR, UNephrin/UCR, UPCX/UCR and UAlb/UCR was investigated in T2DM patients.Results The levels of UPCX/UCR and UMCP-1/UCR were significantly higher in diabetes melli-tus(DM) group (37.37 ±22.83 and 47.19 ±29.98, respectively) than in healthy subjects (9.59 ±2.28 and 9.98 ±3.63, respec-tively) ( P <0.05 ) .The levels of UAlb/UCR、UPCX/UCR and UMCP-1/UCR were significantly higher in diabetic nephropathy (DN) group (90.39 ±59.35, 72.11 ±58.88, and 104.82 ±82.77, respectively) than in DM group (17.50 ±9.49, 37.37 ± 22.83 , and 47.19 ±29.98 , respectively ) and in healthy subjects ( 8.93 ±3.81 , 9.59 ±2.28 , and 9.98 ±3.63 , respectively ) ( P<0.05).The level of UNephrin/UCR was significantly higher in DN group (83.60 ±61.61) than in DM group (38.74 ±35.27) ( P <0.05).The levels of UPCX/UCR, UMCP-1/UCR, and UNephrin/UCR were positively correlated with UAlb/UCR ( r =0.619, 0.568, and 0.535, respectively) ( P <0.05) in T2DM patients.The level of UPCX/UCR was positively correlated with the levels of UMCP-1/UCR and UNephrin/UCR ( r =0.799 and 0.718 , respectively ) ( P <0.05 ) .The level of UNephrin/UCR was positively correlated with the level of UMCP-1/UCR ( r =0.635 P <0.05) in T2DM patients.The positive rate of UMCP-1/UCR, UNephrin/UCR, and UPCX/UCR was significantly higher than that of UAlb/UCR(χ2 =9.818, 6.673, and 5.395, respectively, P <0.05)in T2DM patients.Conclusions The combined detection of urinary PCX , Nephrin and MCP-1 is very important for the early renal dam-age in newly diagnosed type 2 diabetic patients .
3.Association of interleukin-6 receptor gene polymorphism with obesity
Caifeng YAN ; Hongding XIANG ; Wei CHEN ; Fan PING ; Min YANG
Chinese Journal of Endocrinology and Metabolism 2010;26(2):125-126
To examine the relationship between genetic variants in the interleukin-6 receptor gene and obesity. The result showed that the carriers of Asp358 homozygotes had higher risk in developing obesity when compared with Ala358 homozygotes (OR = 1.32,95% CI 1.07-1.68, P = 0. 041). Interleukin-6 receptor gene pulymorphism was significantly associated with obesity.
4.Common syndrome factors of menopausal syndrome based on questionnaire investigation among experts.
Caifeng DU ; Tianfang WANG ; Xiuyan WU ; Yan ZHAO ; Qingguo WANG
Journal of Integrative Medicine 2010;8(8):757-61
Objective: To select the common syndrome factors of menopausal syndrome through questionnaire investigation among experts. Methods: Firstly, a questionnaire was constructed on the basis of our previous research, and then investigation of the experts by the questionnaire was carried out. The experts came from twelve tertiary hospitals (6 cities) in China, and engaged in clinical practice of gynecology of traditional Chinese medicine (TCM) or integrated traditional Chinese and Western medicine. The common TCM syndrome factors of menopausal syndrome were selected based on consent degree of the experts in mean value, full marks ratio, rank sum and variation coefficient. Results: One hundred sets of the questionnaires were sent out and ninety-eight sets were returned back. The callback rate was 98%. In accordance with cumulative percentage of expert agreement and complete agreement more than 50% and the coefficient variation less than 0.25, we confirmed the common TCM syndrome factors of menopause syndrome. The syndrome factors related to disease location were kidney, liver, heart, and spleen, and those related to the nature of disease were yin deficiency, deficiency of essence, yang deficiency, hyperactivity of yang, qi deficiency, qi stagnation, blood deficiency, and blood stasis. Conclusion: Expert consultation questionnaire can collect consensus opinions of experts and is effective for identifying common TCM syndrome factors of a disease. The TCM syndrome factors acquired through the study may provide the evidence for establishment of TCM syndrome diagnosis criteria for the disease in future.
5.Hepatectomy for huge focal nodular hyperplasia of the liver
Feiguo ZHOU ; Yiqun YAN ; Jianjun YAN ; Caifeng LIU ; Xianghua ZHANG ; Liang HUANG ; Mengchao WU
Chinese Journal of Hepatobiliary Surgery 2010;16(2):96-98
Objective To evaluate the safety and feasibility of hepatectomy for huge focal nodu-lar hyperplasia of the liver. Methods The clinical data of 29 cases of huge FNH of the liver with an average diameter of 12.5 cm (10-26 cm) who were admitted to our hospital from 1996 to 2007 were retrospectively analyzed. Lesions protruded from the liver in 26 cases, compressed extrahepatic organs in 10 and adjoined or compressed hepatic hila in 19. Results All the lesions were successfully resected without operative death. The mean intraopreative blood loss was 747 ml (100-4000 ml). The first he-patic portal blocking was performed in 27 cases and the mean blocking time was 26 min (13-78 min).Among 19 cases of huge FNH involving hepatic hila, the mean intraopreative blood loss was 1011 ml,the mean blocking time 30 min and the liver cross-section was not completely sutured in 7 of these ca-ses. The intraoperative hemorrhea occurred in 7 and postoperative biliary fistula in 1. Twenty-seven cases were followed up for a median of 46 months (4-132 months) with no recurrence and the longest survival time had reached to 11 years. Conclusion Hepatectomy is a safe and feasible means for huge focal nodular hyperplasia of the liver. For those involving hepatic hila, distinguishing between the le-sion and intrahepatic vessels, performing resection closely around the lesion and dealing with the liver cross-section properly may be helpful to reduce the surgical complications.
6.Partial hepatectomy for liver metastases from breast cancer: a retrospective study of 47 patients
Caifeng LIU ; Jianjun YAN ; Jing LI ; Liang HUANG ; Feiguo ZHOU ; Yiqun YAN
Chinese Journal of Hepatobiliary Surgery 2012;18(6):420-423
Objective To study the outcomes of partial hepatectomy in patients with liver metastases from breast cancer.Methods The data of 47 patients who underwent partial hepatectomy for liver metastases from breast cancer between 2000 and 2009 were studied.The relationship between the clinical features and outcomes were analyzed retrospectively.Results The mortality of surgery was 0%.The 1-,3-,and 5-year survival rates for these 47 patients were 74.5%,42.5% and 17.0% respectively.The median survival was 29 months.Patients with less than 3 metastatic nodules survived longer than those with more than 3 metastatic nodules.The 1-,3-,and 5-year survival rates were 86.7%,53.3%,23.3 % versus 52.8%,23.5%,5.9 %,and the mean survival was 79.4 months versus 34.6 months (P=0.001),respectively.Patients without local lymph node metastases had longer survival than those with local lymph nodes metastases.The 1-,3-,and 5-year survival rates were 82.3%,50.0%,23.5% versus 53.8%,23.1 %,0%,and the mean survival was 71.9 mouths versus 28.6 months (P=0.002),respectively.There was no relationship between survival and tumor differ entiation,expression of ER,PR and Her 2.Conclusion Surgical treatment was safe for patients with liver metastases from breast cancer.The long-term survival was better for patients with liver metastases with less than 3 nodules compared to those with more than 3 nodules.The survival was poorer in patients with local lymph node metastases than those without lymph node metastases.
7.Multiple lipid derived cytokines areassociated with insulin resistance of patients with type 2 diabetes
Liping WANG ; Bin SONG ; Yan DAI ; Hui CHEN ; Zhenwen ZHANG ; Caifeng YAN ; Yunlong PAN
Basic & Clinical Medicine 2017;37(9):1247-1250
Objective To explore the relation of fat cells factor and insulin resistance in type 2 diabetes.Methods 60 patients were divided into obesity group, non-obese group and normal control group.To detect the FINs, FPG, TG, TC, LDL,HDL,APN,CTRP3,leptin and TNF-α, according to the formula of HOMA,to analyze the correlation between indicators.Results 1).Compared with normal control group, DM group significantly decrease serum APN, CTRP3 level, compared with non-obesity group, obesity group APN, CTRP3 level significantly decreased(P<0.05 or P<0.01).The leptin level elevated (P<0.05).2)APN concentration and age, BMI, FPG, TG, TC, LDL, FINs, HOMA-IR has negative correlation;CTRP3 andFPG,FINs, HOMA-negative correlation IR(P<0.05), TG was positively correlated (P<0.05);TNF-α and FPG and positively correlated (P< 0.05).Conclusions T2DM patients` serum APN, CTRP3 and high Leptin levels are closely associated with obesity, HOMA-IR, FPG and TG as an independent factor can be used as a new sensitive index of evaluating the degree of insulin resistance.
8.Determination of Glucose with Biosensor by Immobilization of Glucose Oxidase with Chitosan
Yan ZHANG ; Caifeng NAN ; Li FENG ; Liqin ZHANG ; Chuan DONG ; Shaomin SHUANG
Chinese Journal of Analytical Chemistry 2009;37(7):1049-1052
A glucose biosensor was fabricated from a glucose oxidasE-immobilized by chitosan and oxygen electrode. The effects of concentration of chitosan(0.3%), enzyme loading(0.8 mg), pH 7.0, phosphate buffer concentration(300 mmol/L), and temperature 25 ℃ for the response of the biosensor were investigated. The glucose biosensor has a linear response range of 0.016-1.10 mmol/L with a detection limit of 8.0 μmol/L(S/N=3). The response time was less than 60 s. The biosensor showed extremely good stability with a shelf-life of at least 3 months. The biosensor exhibited good repeatable response to a 0.25 mmol/L glucose olution with a relative standard deviation of 2.5%(n=10). The precision of fabrication of the biosensors using four different membranes was good with a RSD of 4.7%. Some common potential components in sample such as niacinamide, vitamin B6, vitamin B12, vitamin E, Ca2+, Mg2+, K+ and Zn2+ showed no interferences on the response of the glucose biosensor. The biosensor was successfully applied to determine the glucose in commercial beverage samples.
9.Clinical and imaging efficacy observation of closed reduction and plaster splint fixation in the treatment of ge-rontal patients with distal radius fractures
Daojun LU ; Caifeng ZHANG ; Dong HAN ; Zhifeng HAN ; Xi HAN ; Yan CHEN ; Zhong PENG
Chinese Journal of Primary Medicine and Pharmacy 2014;(5):677-678
Objective To discuss the clinical efficacy of closed reduction and plaster splint fixation ( CRPSF) in the treatment of gerontal patients with distal radius fractures ( DRF) .Methods 76 elderly patients with DRF who treated by CRPSF were selected .According to AO classification of fractures ,the patients were divided into three groups,the A group had 27 cases;B group had 26 cases,C group had 23 cases.The treatment effect was evalua-ted by analyzing the follow-up data,the corresponding imaging measurement parameters and clinical scores .Results All patients had 12-month clinical and imaging follow-up.In the last follow-up, the arm-shoulder-hand dysfunction score and palmar angle ,ulnar deviation angle of A and B group were significantly better than those of C group , the differences were statistically significant(all P<0.05),the difference between A and B group was not statistically sig-nificant (P>0.05).In the last follow-up,the satisfaction score of C group was slightly lower than that of the A or B group,but had no statistically significant difference (P>0.05).Conclusion CRPSF in the treatment of gerontal pa-tients with DRF has good function and imaging effects ,and the improvement level has a certain relationship with the degree of fracture,but has no significant impact on the patients'satisfaction.
10.Connotation of "Fatigue" Symptom and Thought of Its Quantization Evaluation
Xiaolin XUE ; Tianfang WANG ; Yan ZHAO ; Chunguang YU ; Zhigeng LI ; Yuehua HE ; Xue LI ; Caifeng DU ;
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(05):-
This article analyzed the universality of fatigue existing and the significance of quantization evaluation on fatigue.It expounded the recognition of fatigue in traditional Chinese medicine,and further more proposed the methods of quantization evaluation on fatigue.