1.Meta-analysis of insulin aspart versus regular human insulin in diabetes treatment in China
Qing TIAN ; Tianpei HONG ; Hongyu KUANG
Chinese Journal of Diabetes 2017;25(5):385-396
Objective To compare the efficacy and safety of insulin aspart (IAsp) versus regular human insulin (RHI) used in basal bolus (BB) or continuous subcutaneous insulin infusion (CSII) regimen in patients with diabetes mellitus in Chinese population.Methods We searched MEDLINE (via OVID),the Cochrane Library,Embase,PubMed,CBM,China National Knowledge Infrastructure (CNKI),and Wanfang databases from the beginning of the databases to November,2015.The randomized controlled trials comparing IAsp and RHI in DM were searched.The meta-analysis in newly diagnosed DM and treated DM was performed by RevMan 5.3.Results A total of 40 trials were included in this study,with 1087 newly diagnosed and 2395 treated DM patients.In both groups,IAsp was better in lowering 2 hours postprandial plasma glucose (2 hPG) after breakfast,lunch and dinner (For newly diagnosed population MD=-1.22,-1.70,-1.44;95%CI:-1.79~-0.64,-2.77~-0.63,-2.12~-0.75;for treated population MD=-1.19,-1.14,-1.03;95%CI:-1.39~-0.98,-1.27~-1.02,-1.25~-0.81) and fasting plasma glucose (For newly diagnosed population MD=-0.55,95%CI:-0.97~-0.12;for treated population MD=-0.24,95%CI:-0.44~-0.03) when compared with RHI.IAsp could shorten the time to achieve blood glucose target(For newly diagnosed population MD=-1.58,95%CI:-1.74~-1.42;for treated population MD=-1.73,95%CI:-2.10~-1.36) and reduce the risk of hypoglycaemia compared with RHI (For newly diagnosed population RR=0.33,95%CI:0.19~0.56;for treated population RR=0.44,95%CI:0.32~0.61) (P<0.05).Moreover,the total daily insulin dose was lower in IAsp therapy than in RHI therapy when using CSII regimen.Conclusion In Chinese DM patients,IAsp shows advantages in controlling 2 hPG,shortening the time to achieve blood glucose target and lowering the risk of hypoglycaemia when compared with RHI.
2.A Study on Respiratory Impedance of Patients with Obstructive Sleep Apnea-hypopnea Syndrome
Liqi TIAN ; Mei CAO ; Jinhui KUANG
Journal of Chinese Physician 2001;0(02):-
Objective To investigate the characteristics of respiratory impedance in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods The impulse oscillometry(IOS) and polysomnography (PSG) indices were measured in 52 patients with OSAHS, 13 patients with chronic obstructive pulmonary disease (COPD) and 17 healthy persons. Results The levels of R20, total respiratory impedence and central airway resistance in the patients with OSAHS were significantly higher than those in healthy persons (P
3.EFFECT OF ENDOTHELIN ON PREGNANCY AND LABOR
Xiuqing MA ; Tian KUANG ; Kejian GONG
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
The plasma and amniotic fluid concentrations of endothelin-1 (ET-1) and prostaglandin E2 (PGE2) were measured by radioimmunoassay in 81 women, including 20 in the second stage of labor, 14 in the latent period, 15 in the third trimester of pregnancy, 10 in midtrimester, and 12 postpartum women ,and 10 normal nonpregnant women served as control. The results showed that the plasma ET-1 concentrations of women in second stage of labor, latent period, normal third trimester, and midtrimester of pregnancy were significantly higher than those of the normal nonpregnant and postpartum women and increased with pregnancy and labor, with a peak level in second stage of labor. At 24 hours postpartum, the plasma ET-1 concentrations decreased abruptly to the nonpregnant levels. The ET-1 and PGE2 concentrations in amniotic fluid were significantly higher than those in plasma, both at various stages of pregnancy and during labor. The PGE2 levels in plasma and amniotic fluid varied with the ET-1 levels and there was a significant positive correlation at various stages of pregnancy and during labor. The results suggest that ET-1 concentrations in plasma and amniotic fluid increases with gestational length, and produces contractions of pregnant my-ometrium at term. The ET-1 stimulats the production of PGE2 and plays an important role in the initiation and maintenance of labor.
4.Evaluation of 131 I biokinetics and its absorbed dose in patients with metastatic differentiated thyroid carcinoma
Bin LIU ; Rong TIAN ; Xiaohong OU ; Rui HUANG ; Anren KUANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2016;(1):63-66
Objective To investigate the biokinetics of 131 I and its absorbed dose in patients with metastatic DTC. Methods Forty?one patients with metastatic DTC who were referred to 131 I therapy were prospectively recruited from September 2009 to September 2011. Scintigraphic images were serially acquired after the ingestion of 131I (3.70-9.25 GBq) to assess the biokinetics. CT was used to measure the masses of the DTC lesions. Calculation of absorbed doses to DTC lesions was based on the Medical Internal Radiation Dosimetry formula of the Society of Nuclear Medicine and Molecular Imaging. Kruskal?Wallis rank sum test was used to compare the differences of absorbed dose among different tumor deposits. Results In total, 59 io?dine?avid metastatic lesions (35 in cervical lymph node, 17 in lung and 7 in bone) in 41 patients were evalu?ated and the mean absorbed dose of DTC lesions was (10.4±6.5) Gy/GBq, with range of 0.1 to 136.2 Gy/GBq. The median absorbed dose was 11.3 Gy/GBq for lymph node metastase, 10.1 Gy/GBq for lung metastases and 9.6 Gy/GBq for bone metastases. There were no statistically significant differences in absorbed doses a?mong the metastases of lymph node, lung and bone ( Z=0.907, P>0.05) . Conclusion A wide inter?lesion variation of absorbed dose to metastatic DTC is observed.
5.Corticosterone impairs reconsolidation of novel object recognition memory in rats
Meifang ZHOU ; Bo WANG ; Shaowen TIAN ; Derong TAN ; Xin KUANG
Chinese Journal of Tissue Engineering Research 2016;20(18):2655-2660
BACKGROUND: The formation of long-term memory includes acquisition, consolidation and reconsolidation. Reconsolidation is very important for the new memory transforming into stable memory. Stress is an important environmental factor in the process of learning and memory. Corticosterone is very important for stress response. At present, research about the impact of corticosterone on reconsolidation of novel object recognition memory is less. Thus, it is very important to test the impact of corticosterone on reconsolidation of novel object recognition memory in rats.
OBJECTIVE: To analyze the effects of corticosterone on the reconsolidation of novel object recognition memory in rats.
METHODS: (1) The rats were intraperitoneal y injected with corticosterone (0.1, 1 and 3 mg/kg) immediately after reactivation. The discrimination index was used to assess memory performance and calculated as the difference in time exploring the novel and familiar objects. (2) The rats were intraperitoneal y injected with corticosterone (3 mg/kg) 6 hours after reactivation. The discrimination index was used to assess memory performance and calculated as the difference in time exploring the novel and familiar objects. (3) The rats were intraperitoneal y injected with corticosterone 3 mg/kg without reactivation. The discrimination index was used to assess memory performance and calculated as the difference in time exploring the novel and familiar objects.
RESULTS AND CONCLUSION: Immediate injection of corticosterone 3 mg/kg after reactivation significantly decreased the discrimination index. At 6 hours after reactivation or without reactivation, corticosterone administration did not impact the discrimination index. These results confirmed that corticosterone administration immediately after reactivation impairs the reconsolidation of novel object recognition memory. The damage effect depends on the reactivation experience and the specific time window after reactivation.
6.Exploration of professional series teaching materials construction of reproductive medicine
Zhixin LI ; Liuhang WANG ; Kuang REN ; Ye XU ; Hongyan TIAN ; Zhaohua DOU
Chinese Journal of Medical Education Research 2011;10(8):910-912
Reproductive medicine is one of the most promising subjects in this century. Our country starts the education in reproductive medicine late and progress is slow.The institutions who recruit reproductive medical students adopt self-determine subjects, self-compile outline and self-compile teaching materials. As a result, the quality of teaching is affected. There is an urgent need to prepare a national high-level professional series of textbooks for reproductive medicine. The article discusses the construction of unified compiling professional series teaching materials for reproductive medicine from necessity, main ideas, compsition, principles of preparation and basic content.
7.Exploration of reproductive medicine specialty construction
Zhixin LI ; Kuang REN ; Liuhang WANG ; Hongyan TIAN ; Ye XU ; Zhaohua DOU
Chinese Journal of Medical Education Research 2012;11(1):32-34
Reproductive medicine,studying reproductive health of the gender,is an important branch of modern medical science.The reproductive medical education about undergraduate degree started late in China.Compared with the reproductive medical research,education has lagged apparently.The article discussed the specialty construction of reproductive medicine from necessity,construction of reproductive medicine curriculum,establishing a scientific and reasonable training plan,implementing innovative education and preparation of series of materials for reproductive medicine specialty.
8.Analysis on the gene mutations of MYOC in primary open angle glaucoma pedigree
Xiaobing XIE ; Xin ZHOU ; Yanli TIAN ; Xiying QU ; Duoxiu KUANG ; Huibin ZHU ; Jingcheng YU ; Xingwang NING
Chinese Journal of Laboratory Medicine 2009;32(2):157-161
Objective To screen the mutations of MYOC gene in a Chinese primary open angle glaucoma (POAG) family from Cbengqing and investigate the relationship between the mutations in MYOC/TIGR gene and POAG.Methods In a large 4-generation glaucoma family, myocilin gene (MYOC) was screened in 39 family members, 8 of which were confirmed patients. Normal controls included 100 normal Chinese subjects.The known mutations of MYOC gene ( including G34C, C136T, G144T, G227A, C624G,G736A, C1009G, A1036G, C1081T, G1099A, G1138A, A1139C, T1430A, C1441A and C1442T) were detected by single strand conformation polymorphism(SSCP) , po]ymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) analysis and DNA sequencing.Results G227A mutation was detected in 2 POAG patients and 1 asymptomatic patient, but not in the controls.Cl009del mutation was identified in all patients of the pedigree and an offspring member but not in the controls. No other mutations were detected.Since the C1009del mutation was revealed for the first time, a new GenBank number FJ237047 correponding to ACI62293 was applied.Conclusions The G227A mutation is a known site and there is no relationship between G227A mutation and glaucoma. But C1009del may be related to glaucoma which suggests that morbidity could be higher in the relatives of POAG than the controls.
9.Preparation of the small intestinal submucosa sponge
Huizhe SUN ; Wei TIAN ; Liang ZENG ; Zhengdong WANG ; Yue REN ; Baoping KUANG
Chinese Journal of Tissue Engineering Research 2016;20(21):3110-3116
BACKGROUND:Studies have found that smal intestinal submucosa that is directly implanted into the lesion cannoteffectively promote celgrowth and differentiationin vivoandin vitro, because of its smal pore size and poor permeability.
OBJECTIVE:To establish the smal intestinal submucosa sponge and to explore its morphological characteristics.
METHODS:Porcinesmall intestinal submucosa was prepared by physiochemical method. Thenthe small intestinal submucosa with the mass fraction of 1%, 2%, 3% and 4% was cross-linked by 50, 100 and150 mmol/L 1-ehyl-3-(3-dimethylaminopropyl) carbodimide hydrochloride, respectively, so as to obtain smal intestinal submucosa sponge, whose morphology was detected by lighting and scanning electron microscope. In the meanwhile, smal intestinal submucosa as control group, and smal intestinal submucosa sponge as test groupwere intramuscularly implanted into the back of rats,respectively. At 1, 2 and 3 weeks after implantation, histological changes andimplantdegradation were observed by hematoxylin-eosin staining.
RESULTS AND CONCLUSION:The smal intestinal submucosa sponge, which was prepared by the smal intestinal submucosa with the mass fraction of 1% and 100 mmol/L cross-linking agent, had elastic and close space structure, uniform pore size and regular structure, so it was selected as the implant into themuscle.At 1 week after implantation, in the test group,the mesh sponge had the complete structure withfew neutrophils, lymphocytes and giant cel reaction, andsoft tissue hyperplasia and migration surrounding the implant appeared;in the control group,there were numerous inflammatory cels, and wound adhesion and little migration of surrounding tissues could be found.At 3 weeks, inflammatory cels mostly disappeared, and fibroblast-like cels and vascular components appeared, with thinner and regular colagen fiber bundles, and connective tissue-like structures could be found. In contrast, the control group stil had numerous inflammatory cels and few colagen fibers. In conclusion, smal intestinal submucosa sponge isapotential material used asthe tissue-engineered skinscaffold.
10.Clinical significance of negative thyroglobulin and positive diagnostic whole body scan in patients with differentiated thyroid carcinoma who underwent thyroid remnant ablation
Shuang HU ; Ting JI ; Bin LIU ; Guohua SHEN ; Anren KUANG ; Rong TIAN
Chinese Journal of Nuclear Medicine and Molecular Imaging 2015;35(2):154-156
Diagnostic whole body scan (Dx-WBS) with 131I and serum Tg level are the main parameters to evaluate the effectiveness of thyroid remnant ablation in patients with DTC.Undetectable Tg and positive radioiodine uptake in the thyroid bed (Tg-/Dx-WBS+) may be found in some patients.However,the clinical significance is uncertain.A small amount of thyroidal remnant,a small DTC lesion,increased expression of NIS gene and autoimmune inflammation may all result in Tg-/Dx-WBS+.A wait-and-watch approach without rushing for high-dose radioiodine treatment might be a more reasonable approach for these patients.