1.Glycosylated hemoglobin A1c for the diagnosis of diabetes mellitus: a meta-analysis
Songtao TANG ; Qiu ZHANG ; Changjiang WANG ; Haiqin TANG ; Taixiang WU
Chinese Journal of Internal Medicine 2013;(1):21-25
Objective To assess the diagnostic value of glycosylated hemoglobin A1c (HbA1c) ≥6.5% for diabetes in Chinese adults with oral glucose tolerance test(OGTT) as the reference standard.Methods Major databases were searched to get all diagnostic tests with HbA1c ≥ 6.5% for diabetes in Chinese adults.QUADAS items were used to evaluate the quality of the eligible studies.Meta-disc software was used to perform comprehensive quantitative assessment for all included studies and summary ROC (SROC) curve were drawn.Results A total of 11 studies were included.The outcomes of the diagnostic value with HbA1c ≥6.5% were as the following:pooled sensitivity 0.62 (95% CI:0.60-0.64),pooled specificity 0.96 (95% CI:0.95-0.96),diagnostic odds ratio (DOR) 40.25 (95% CI:20.79-77.95) and AUCSROC 0.7702 (sx =0.0636).Conclusions The diagnostic specificity is pretty high for the diagnostic test with HbA1c ≥6.5%,while sensitivity is low.Combination of HbA1c and glucose tests is needed to reduce the missed diagnosis rate.
2.Effects of Tamm-Horsfall protein on kidney stone formation
Xin LIU ; Hongwei SU ; Jie CHEN ; Yongsheng ZHU ; Songtao LUO ; Meiying JI ; Kaifa CHEN ; Yiquan TANG
Journal of Medical Postgraduates 2017;30(9):922-925
Objective Tamm-Horsfall protein (THP) may play a role in kidney stone formation.The article aimed to conduct a preliminary study on the role of THP in kidney stone formation by investigating the changes of THP in rat urine, pathological changes of renal tissue and the formation of calcium salt crystals after establishing CNPs rat model of kidney stones.Methods Stone samples of 40 patients from February to June 2015 in our department were collected to establish the model of CNPs-induced kidney stone in rats and prepare CNPs suspension.48 SD rats were randomly divided into experimental group (group A) and blank control group (group B).Group A were injected with CNPs and the same amount of sterile saline injection in the group B.The urine of rats was collected after injection at 3h, 6h, 12h, 24h, 1w, 2w, 4w and 8w.ELISA were applied to detect THP levels in the urine.Then the rats were killed to take the kidney tissue.HE staining was used to investigate the pathological changes of the cells and evaluate the formation of the calcium salt crystals.Results THP levels in group A at 24h, 1w, 2w, 4w and 8w ([166.03±3.02], [173.50±1.78], [174.55±2.05], [176.54±2.45], [177.11±1.76]pg/mL) were significantly higher than that at 3h(165.89±2.23pg/mL)(P<0.05), which was the same case in comparison with those of group B ([157.65±2.22], [156.54±1.43], [159.45±3.21], [158.63±2.98], [157.33±2.05]pg/mL).Compared with the calcium salt crystal score at 6h (1 point), the scores at 3,6,12,24h (average score 2 points) increased.At 2w the score increased significantly to 3 points and reached the top score(6.7points) at 8w, which was of significant difference.The score of calcium salt crystals was in positive correlation with THP content (r=0.843,P<0.05).Conclusion THP in urine may contribute to the aggregation of calcium salt crystals and the formation of kidney stones.
3.The Relationship between Preoperative MRI Characteristics and The Perioperative Outcomes of Microvas- cular Decompression in Primary Trigeminal Neuralgia
Siqiang TANG ; Songtao QI ; Yi LIU ; Ming CHEN ; Hu CHAOWANG ; Xian ZHANG ; Jun PAN ; Jin SHI ; Guanglong HUANG ; Jiabei CHEN
Chinese Journal of Nervous and Mental Diseases 2014;(8):459-463
Objective To evaluate the relationship between preoperative MRI characteristics and the perioperative outcomes of microvascular decompression in primary trigeminal neuralgia. Methods To analyze the relationship between preoperative MRI characteristics and the perioperative outcomes in 103 primary trigeminal neuralgia patients with micro-vascular decompression in Nanfang Hospital. The MRI features such as the ratio of CPA area, TGN cross-sectional area and TGN length was evaluated together with the TGN oppression distance, the position of TGN, the position of basilar ar-tery and the type of offending vessel as well as the outocmes including complete disappearance, temporary remission and ineffectiveness. Results Univariate analysis showed that the oppression orientation (P=0.017), oppression distance (P<0.001), offending vascular type (P=0.016), TGN cross-sectional area ratio (P<0.001) were the influencing factors of periop-erative outcomes. Logistic regression analysis showed that the offending vascular type (P=0.002)and TGN cross-sectional area ratio (P=0.020) were the main predictive factors of perioperative outcomes of microvascular decompression. Conclu-sions Preoperative thin slice MRI scanning showed that the offending artery, non-atrophy nerve roots, far distance from op-pression point to brainstem may be the favorable factors of perioperative outcomes of microvascular decompression.
4.Application of Self-assembled Nano-strategies of Traditional Chinese Medicine in Tumor Therapy: A Review
Ju HUANG ; Yu ZHU ; Hang XIAO ; Songtao LI ; Jingwen LIU ; Qiao ZHENG ; Xiangrui MENG ; Jianyuan TANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(24):185-193
Chinese medicine self-assembly nano-strategies(CSAN) is to utilize the self-assembly property of Chinese medicine components, so that the Chinese medicine components can self-assemble to form structurally stable nano-preparations through non-covalent interactions. The formation of Chinese medicine self-assembly nano-preparations is often a synergistic result of a variety of non-covalent interactions, and many Chinese medicine monomers are susceptible to self-assembly due to their structural characteristics, and the phenomenon of self-assembly of Chinese medicine is also common in the decoction of single or compound Chinese medicine, which has attracted the attention of researchers. It is found that CSAN can improve the solubility and bioavailability of active components in Chinese medicine, which is of positive significance for the development and application of insoluble components of Chinese medicine. The self-assembly phenomenon of Chinese medicine decoction is closely related to the therapeutic efficacy, and the study of self-assembly phenomenon of Chinese medicine will bring a new perspective for the explanation of the mechanism of Chinese medicine decoction. At the same time, traditional Chinese medicine(TCM) has unique advantages in the field of anti-tumor. The application of CSAN in the field of oncology can not only exert the anti-tumor effect of the active components of Chinese medicine directly, but also act as a natural nano-carrier to carry chemotherapy drugs for combination chemotherapy, improve the targeting of drugs, enhance the anti-tumor efficacy, and reduce the side effects of chemotherapy, which has excellent anti-tumor potential. The preparation method of Chinese medicine self-assembly nano-preparations is simple, low cost, and has better safety than traditional nano-preparations, which is conducive to the promotion of the clinical transformation of nano-preparations, and also helps to provide new strategies and perspectives for promoting the modernization of TCM. Therefore, based on a large number of researches in this field in recent years, this paper reviewed the formation mechanism, different assembly forms, formation conditions and stability of Chinese medicine self-assembly nano-preparations by searching databases such as China national knowledge infrastructure(CNKI), PubMed, WanFang data and VIP, and summarized the application of CSAN in different tumor therapies, providing a reference for further research on CSAN.