1.Subfoveal choroidal thickness measured by Cirrus HD optical coherence tomography in myopia
Li-Li, CHEN ; Zi-Lin, CHEN ; Ze-Bin, LI
International Eye Science 2014;(9):1641-1643
To measure the subfoveal choroidal thickness ( SFCT ) in myopia using Cirrus HD optical coherence tomography ( OCT ), and to explore the relationship between the SFCT, axial length and myopic refractive spherical equivalent.
● METHODS: One - hundred thirty - three eyes of 70 healthy volunteers were recruited, and were divided into emmetropia group, low- degree myopia, middle- degree myopia and high - degree myopia group. SFCT were measured by Cirrus HD OCT, and the relationship between the SFCT, axial length and myopic refractive spherical equivalent were evaluated.
●RESULTS: 1) Average SFCT was (275. 91±55. 74)μ m in normals, that in emmetropia group, low-degree myopia, middle- degree myopia and high - degree myopia group were (290. 03± 34. 82) μ m, (287. 64 ± 51. 51) μ m, (274. 95 ± 56. 83)μ m, (248. 37 ± 67. 98) μ m; 2) the SFCT of high -degree myopia group was significant thinner than that of emmetropia group (P< 0. 05); 3) There was a significant negatives correlation between the SFCT and axial length (P<0. 01), a significant positive correlation between SFCT and myopic refractive spherical equivalent (P<0. 01).
● CONCLUSlON: the SFCT is inversely correlated with increasing axial length and myopic refractive error.
2. Advances in research on relationship between osteoporosis and intestinal microbe
Journal of Shanghai Jiaotong University(Medical Science) 2019;39(10):1214-1217
Osteoporosis, one of the severest diseases in the middle-aged and elderly population, is the result of the disorder of the normal bone turnover process. At present, many studies have shown that bone turnover is closely related to the microbial environment in the human body. The largest microbiota in the human body exists in the intestine and plays an important role in the normal physiological activities of the body, such as nutrition, metabolism, immunity and barrier. Intestinal microbe can regulate endocrine and immune system through a series of processes, thereby affecting the process of bone turnover in the body. This article briefly reviews the current research about the effects of intestinal microbe on the process of bone turnover in the body. It is expected to provide new ideas for the treatment of osteoporosis by exploring the relationship between osteoporosis and intestinal microbe.
3.The effect of blood glucose variation on gastric emptying and ghrelin expression in diabetic rats
Lin YANG ; Liangzhou WEI ; Zi-Bin TIAN ; Yanqing LI ;
Chinese Journal of Digestion 2001;0(04):-
Objective To study the effect of blood glucose variation on gastric emptying and ghrelin expression in diabetic rats,and to explore the relationship between the delayed gastric emptying and the ghrelin expression in different diabetic stages.Methods Sixty Wistar rats were randomly divided into three groups:a normal control group(NC group),a diabetes mellitus group (DM group) induced by intra- peritoneal injection of streptozotocin (STZ),and an insulin-treated group (INS group).After one and four weeks the gastric emptying was measured by intragastric administration of phenol red and the expression of gastric ghrelin was determined by immunohistochemistry and semi-quantitative RT PCR.Results After one week of STZ injection,the gastric emptying,the ghrelin integral optical density and the ghrelin mRNA expression decreased significantly in DM group compared to those in NC group and INS group(P0.05).Conclusion Short term hyperglycemia delay gastric emptying through the reduction of gastric ghrelin expression,while long-term hyperglycemia may enhance the expression and release of gastric ghrelin to stimulate food intake and maintain energy balance.
4.Diagnostic value of ovarian morphology by ultrasonography in pubertal polycystic ovary syndrome
Ya-Xiao CHEN ; Dong-Zi YANG ; Lin LI ; Xiao-Li CHEN ; Yu LI ;
Chinese Journal of Obstetrics and Gynecology 2000;0(09):-
0.05).Setting the threshold of MOV at 6.4 cm~3 offered the best compromise between sensitivity (84.8%)and specificity(87.5%),and setting the threshold of MaxOV at 8.6 cm~3 offered the best compromise between sensitivity(75.8%)and specificity(95.2%)and setting the threshold of MFN at 8 offered the best compromise between sensitivity(86.7%)and specificity(78.3%).Conclusions Ovarian morphology by ultrasonography yields satisfactory diagnostic accuracy for adolescent PCOS.Taking MOV≥ 6.4 cm~3 or MaxOV≥8.6 cm~3 or MFN≥8 as an ultraphonic criterion for pubertal PCOS offer the best compromise between sensitivity and specificity.
5.Evaluation of the reproducibility of non-verbal facial expressions in normal persons using dynamic stereophotogrammetric system.
Tian Cheng QIU ; Xiao Jing LIU ; Zhu Lin XUE ; Zi Li LI
Journal of Peking University(Health Sciences) 2020;52(6):1107-1111
OBJECTIVE:
To assess the reproducibility of non-verbal facial expressions (smile lips closed, smile lips open, lip purse, cheek puff) in normal persons using dynamic three-dimensional (3D) imaging and provide reference data for future research.
METHODS:
In this study, 15 adults (7 males and 8 females) without facial asymmetry and facial nerve dysfunction were recruited. Each participant was seated upright in front of the 3D imaging system in natural head position. The whole face could be captured in all six cameras. The dynamic 3D system captured 60 3D images per second. Four facial expressions were included: smile lips closed, smile lips open, lip purse, and cheek puff. Before starting, we instructed the subjects to make facial expressions to develop muscle memory. During recording, each facial expression took about 3 to 4 seconds. At least 1 week later, the procedure was repeated. The rest position (T0) was considered as the base frame. The first quartile of expressions (T1), just after reaching the maximum state of expressions (T2), just before the end of maximum state of expressions (T3), the third quartile of expressions (T4), and the end of motion (T5) were selected as key frames. Using the stable part of face such as forehead, each key frame (T1-T5) of the different expressions was aligned on the corresponding frame at rest (T0). The root mean square (RMS) between each key frame and its corresponding frame at rest were calculated. The Wilcoxon signed ranks test was applied to assess statistical differences between the corresponding frames of the different facial expressions.
RESULTS:
Facial expressions like smile lips closed, smile lips open, and cheek puff were reproducible. Lip purse was not reproducible. The statistically significant differences were found on the T2 frame of the repeated lip purse movement.
CONCLUSION
The dynamic 3D imaging can be used to evaluate the reproducibility of facial expressions. Compared with the qualitative analysis and two-dimensions analysis, dynamic 3D images can be able to more truly represent the facial expressions which make the research more reliable.
Adult
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Face/diagnostic imaging*
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Facial Expression
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Female
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Humans
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Imaging, Three-Dimensional
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Lip/diagnostic imaging*
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Male
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Photogrammetry
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Reproducibility of Results
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Smiling
6.Expression Levels of Interleukin-12 and Interleukin-12 mRNA in Gastritis Related Infection with Helicobacter Pylori in Children
qian, LIN ; da-wei, WANG ; ying-zi, TANG ; li-hua, HAO ; mei, LI ; zu-hui, HE
Journal of Applied Clinical Pediatrics 2004;0(09):-
Objective To determine the changes of interleukin-12(IL-12) and IL-12 mRNA in gastric mucosa of children with helicobacer pylori (Hp) infection,and to study the effects of Hp infection on the expression levels of IL-12 and IL-12 mRNA,and to evaluate its possible roles in the pathogenesis of gastric mucosal inflammation in Hp related gastroduodenal diseases.Methods Biopsy specimens were taken from the antral mucosa on endoscopy in patients with or without Hp infection, which were diagnosed by urease test and Giemsa staining. The expression levels of IL-12 and IL-12 mRNA in gastric mucosa were determined by ELISA and RT-PCR.Results Inflammation of gastric antral mucosa was more severe in Hp-positive mucosa .The expression levels of IL-12 and IL-12 mRNA in Hp-positive mucosa were (66.42?15.15) ng/g and (59.21?15.03)%,which were more than those in (Hp-negative )(22.22?8.79) ng/g and (17.94?7.39)%(P
7.Effects of inhaled glucocorticoids on bone metabolism of children with asthma
sha, LI ; yi, ZHANG ; you-ping, TAN ; qiu-xiong, LIN ; zi-li, CHEN
Journal of Applied Clinical Pediatrics 1992;0(06):-
0.05).Conclusion There are no significant effects on bone metabolism and growth of children with small dose of IGs per day for a longer time.
8.Effect of different processing methods on active ingredient contents and sulfur dioxide residue in Astragali Radix.
Lin JI ; Chun-Qin MAO ; Tu-Lin LU ; Lin LI ; De JI ; Zi-Wan NING ; Jing LIU
China Journal of Chinese Materia Medica 2014;39(15):2819-2822
To compare the differences of the active ingredient contents and the sulfur dioxide residue in Astragali Radix before and after sulfur fumigation and provide a basis for establishing an alternative processing method. Astragali Radix, harvested at the same time in Longxi Gansu, were processed with different methods. high performance liquid chromatography (HPLC) was used to determine the contents of the active ingredients in Astragali Radix and the revised method of the pharmacopoeia of China in 2011 was applied to determine the sulfur dioxide residue. The results show that the three-fold sulfur-fumigation group has the highest level of astragaloside IV and the dried sulfur-fumigation group with 10% water has the lowest level; the content of calycosin-7-O-β-D-glucoside is the highest in naturally dried group and the lowest in the group of sulfur fumigating for 3 times; the sulfur dioxide residue of all sulfur-fumigation groups exceeds certain limit significantly and the group of sulfur fumigating for 3 times reaches the highest level.
Astragalus Plant
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chemistry
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
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Fumigation
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adverse effects
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Sulfur Dioxide
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analysis
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Technology, Pharmaceutical
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methods
9.Effects of organophosphate insecticide on blood nitric oxide in rabbits.
Li LIN ; Qiang ZHANG ; Ji-lei LIE ; Chung-zi ZHANG ; Jin ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2003;21(3):228-228
Animals
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Insecticides
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toxicity
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Nitric Oxide
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blood
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Organophosphorus Compounds
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Rabbits
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Superoxide Dismutase
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blood
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Vitamin E
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blood
10.Fingerprint of X-ray diffraction of Tibetan medicine dairy Nanhanshuishi and its application in processing by microwave.
Lin-yan ZHU ; Jian-feng XIE ; Zi-ming KONG ; Gao-ping LI ; Yong-ping HAN
China Journal of Chinese Materia Medica 2015;40(10):1948-1952
The characteristic fingerprint of conventional dairy Nanhanshuishi was established by X-ray diffraction (XRD), based on similarity of caculation on public peaks by MATLAB software, and the feasibility of new dairy technology of microwave method was explored between XRD and the dissolution rate in artificial simulation gastric juices. The result showed that similarity of shared peak in XRD of conventional dairy Nanhanshuishi was > 95%, This XRD characteristic fingerprint of conventional dairy Nanhanshuishi had strong specificity, could be used to provide a reference for identification and quality evaluation. This study also showed that the similarity of microware dairy products and conventional dairy products was good, and the sample of microwave 15 min was the best, and new dairy method by the microwave could replace the traditional method.
Animals
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Chemistry, Pharmaceutical
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instrumentation
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methods
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Drugs, Chinese Herbal
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chemistry
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Medicine, Tibetan Traditional
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Microwaves
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Milk
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chemistry
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Plants, Medicinal
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chemistry
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Quality Control
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X-Ray Diffraction