1.The significance of urinary osteopontin in patients with urolithiasis
Liansheng CHANG ; Tao FENG ; Yinglu GUO
Chinese Journal of Urology 2000;0(12):-
Objective To investigate the relationship between osteopontin and urolithiasis. Methods Concentrations of urinary osteopontin and crystal components were determined. Results Relative concentrations of urinary osteopontin in normal, pre and postoperative stone former group were 29.30 ,26.17 and 10.84 respectively. Concentrations of urinary magnesium and citrate were 3.86 mmol/L and 1.42 mmol/L respectively in normal control, while these were 1.14 mmol/L and 0.33 mmol/L respectively in stone formers, and there were significant differences between the two groups ( P
2.Effects of flunarizine on penicillin-induced seizures and hippocampal neuron unit discharges in rats.
An-Jun SONG ; Guo-Feng WU ; Nai-Chang JIANG
Chinese Journal of Applied Physiology 2010;26(4):488-490
Animals
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Flunarizine
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pharmacology
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Hippocampus
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drug effects
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physiopathology
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Male
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Neurons
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drug effects
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physiology
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Penicillins
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adverse effects
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Rats
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Rats, Wistar
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Seizures
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chemically induced
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physiopathology
4.Relationship between expression of PD-L1 and microsatellite instability of colorectal cancer and its significance
Wen FENG ; Xinxin WU ; Yongjun GUO ; Yuxi CHANG ; Qingxin XIA
Chinese Journal of Clinical Oncology 2017;44(12):589-593
Objective:To investigate the expression and clinical significance of PD-L1 in colorectal cancer (CRC). Methods:A total of 210 CRC patients who accepted radical surgery in our hospital from January 2015 to January 2016 were divided into three groups, namely, high-frequency microsatellite instability (MSI-H), low-frequency microsatellite instability (MSI-L), and microsatellite stable (MSS). The expression of PD-L1 was detected by immunohistochemistry, and the expression characteristics of PD-L1 in different types of CRC were analyzed. Results:CRC cases with low differentiation had a higher expression of PD-L1 than CRC patients with high differ-entiation (P<0.05). PD-L1 had a positive rate of 75.8%in the MSI-H group and a rate of 9.3%in the MSI-L and MSS groups, wherein the difference between the two groups was statistically significant (P<0.05). Conclusion:PD-L1 was positively expressed in some CRC tu-mor tissues, and its positive rate was significantly higher in MSI-H than in MSI-L and MSS. The therapeutic effect of a PD-L1 blocker for patients with MSI-H CRC might be preferable.
5.Metabolic characteristics of critically ill patients and nutrition support strategy
Xiaoyu YAN ; Zhigang CHANG ; Shirou XIAO ; Feng GUO ; Mingwei ZHU
Chinese Journal of Digestive Surgery 2021;20(5):574-578
Nutrition support is an important part of comprehensive treatment strategy for critically ill patients. After long-term scientific research and practice, great progress has been made in theoretical cognition and clinical application. The authors summarize the metabolic charac-teristics and nutritional support strategies of critically ill patients based on their pathophysiological changes, in order to provide rational and theoretical basis for reasonable and effective nutrition support strategy in critically ill patients.
6.Surgical treatment of double disruption of the superior shoulder suspensory complex
Dengjun ZHANG ; Jiefu SONG ; Jie WEI ; Feng CHANG ; Baoguo CHANG ; Wei HU ; Xiusheng GUO
Chinese Journal of Trauma 2014;30(6):560-563
Objective To investigate the procedures and effects of surgical treatment for double disruption of the superior shoulder suspensory complex (SSSC).Methods Twenty-nine cases of double disruption of SSSC treated from January 2007 to October 2011 were enrolled in the study.There were 19 males and 10 females,at a mean age of 36 years (range,25-49 years).Injury causes included traffic injury in 25 cases and fall from height in 4.An open reduction and internal fixation was performed in 18 cases of scapular neck fracture combined with clavicular fracture,2 cases of scapular neck fracture combined with acromion fracture,2 cases of distal clavicular fracture combined with acromion and glenoid cavity fracture; hook plate fixation and ligament repair were performed in 3 cases of complete dislocation of acromioclavicular joint combined with complete disruption of coracoclavicular ligament ; open reduction and internal fixation and ligament repair were performed in 3 cases of scapular neck fracture combined with acromioclavicular joint dislocation and 1 case of clavicular fracture combined with coracoclavicular ligament disruption.Results All cases were followed up for a mean period of 11.5 months (range,6-30 months).Anatomic reduction of fractures was achieved for all cases and mean healing time was 8.4 weeks (range,7-12 weeks).Mean Constant-Murley score was 91 points (range,72-100 points),which indicated excellent results in 13 cases,good in 11,fair in 5,with excellence rate of 83%.ConclusionBased on the complex anatomic structure of the double disruption of SSSC,surgical management should focus mainly on respective fixation of the double injuries,which leads to good stability and therapeutic outcome.
7.Genetic polymorphism of nine non-CODIS STR loci in Hunan Province-based Chinese Han population.
Juan-juan GUO ; Ying LIU ; Ya-dong GUO ; Jie YAN ; Yun-feng CHANG ; Ji-feng CAI ; Ting LU ; Zha LAGABAIYILA
Journal of Forensic Medicine 2014;30(6):441-445
OBJECTIVE:
To determine the allelic frequency distribution and genetic parameters of nine non-CODIS DNA index systems of the short tandem repeat (STR) loci (D2S1772, D6S1043, D7S3048, D8S1132, D11S2368, D12S391, D13S325, D18S1364, and GATA198B05).
METHODS:
A total of 353 blood samples were collected, extracted, amplified, and analyzed from unrelated healthy individuals of Han nationality in Hunan Province, China.
RESULTS:
One hundred and fourteen alleles were observed in the population with corresponding allelic frequencies ranged from 0.001 0 to 0.323 0. For all the nine non-CODIS STR loci, the observed genotypic data showed no significant deviations from the Hardy-Weinberg equilibrium. The Ho, He, PIC, DP, and PE of the studied non-CODIS STR loci ranged from 0.1080 to 0.1950, 0.8050 to 0.8920, 0.7700 to 0.8600, 0.9250 to 0.9660 and 0.6070 to 0.7800, respectively.
CONCLUSION
Nine non-CODIS STR loci have high degrees of polymorphisms, which may be useful in individual forensic identification and parentage testing in forensic practice.
Alleles
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Asian People/genetics*
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China
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Ethnicity/genetics*
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Gene Frequency
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Genetics, Population
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Genotype
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Humans
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Male
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Microsatellite Repeats/genetics*
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Polymorphism, Genetic
8.Comparative study on the antioxidant capacity of quercetin in vivo and in vitro.
Jun-feng SU ; Chang-jiang GUO ; Jing-yu WEI
Chinese Journal of Applied Physiology 2002;18(4):382-386
AIMTo compare the TAOC of quercetin, rutin, vitamin C, vitamin E in vitro and examine the effect of quercetin on TAOC of rat plasma after intragastric administration.
METHODSFe3+ reducing ability assay, UV spectrum analysis and HPLC analysis were used to measure TAOC of plasma and the contents of quercetin and rutin after intragastric administration.
RESULTSThe TAOC of quercetin was stronger than that of rutin and roughly equal to vitamin C and vitamin E in vitro. After intragastric administration of quercetin (40 mg/kg bw), the TAOC and content of quercetin in rat plasma increased significantly. Vitamin C also increased plasma TAOC significantly, but rutin and vitamin E didn't after intragastric administration. However, there was no remarkable absorption peak of quercetin on HPLC chromatograms and on the other hand, the peak areas of two unknown peaks near quercetin peak were increased after intragastric administration of quercetin.
CONCLUSIONThe antioxidant capacity of quercetin was stronger than rutin and comparable to vitamin C both in vitro and in vivo. After absorption, quercetin is metabolized to its derivatives.
Animals ; Antioxidants ; pharmacology ; Ascorbic Acid ; pharmacology ; Male ; Quercetin ; pharmacology ; Rats ; Rats, Wistar ; Rutin ; pharmacology ; Vitamin E ; pharmacology
9.Treatment of unstable middle 1/3 of clavicular fractures with composite external fixator in adult patients.
Feng JIANG ; Xiao WANG ; Ming-hui ZHANG ; Guo-jun LI ; Chang-lin HUANG
China Journal of Orthopaedics and Traumatology 2013;26(12):1033-1036
OBJECTIVETo explore methods and clinical effects of composite external fixtor in treating adult patients with unstable middle 1/3 of clavicular fractures.
METHODSFrom March 2008 to March 2011,36 patients with unstable middle 1/3 of clavicular fractures were treated with composite external fixtor. There were 24 males and 12 females, aged from 18 to 55 years old with an average of 43 years old. Twenty cases on the left side and 16 cases on the right side. Time from injury to operation was 2 to 6 days (averaged 3.5 days). According to Robinson classification, there were 7 cases with type 2A2, 18 cases with type 2B1, and 11 cases with type 2B2. No vessels and nerve damage occurred before opreation. The clinical effects were evaluated according to Neer scoring.
RESULTSAll cases were followed up from 6 to 12 months with an average of 8 months. The mean Neer score was 88.3 +/- 6.2, which included pain 31.6 +/- 3.2, functional score 25.7 +/- 2.2, range of motion score 21.1 +/- 1.7, and anatomy score 8.8 +/- 0.8. There were 22 cases in excellent, good in 13, fair in 1. Two cases occurred pin tract infection.
CONCLUSIONComposite external fixtor is an optional method in treating unstable middle 1/3 of clavicular fracture, and can obtain a good clinical effects.
Adolescent ; Adult ; Bone Nails ; Clavicle ; injuries ; surgery ; External Fixators ; Female ; Fracture Fixation ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Young Adult
10.Analysis on morphological characteristics, photosynthetic characteristics and chemical constituents of Inula lineariifolia from different populations.
Feng-chen CHEN ; Chang-lin WANG ; Qiao-sheng GUO ; Xin TIAN ; Yuan-yuan QIU
China Journal of Chinese Materia Medica 2015;40(22):4389-4394
Twelve populations of Inula lineariifolia were used as materials to measure morphological characteristics, photosynthetic parameters and chemical constituents. It aims to provide a theoretical basis for germplasm resources evaluation. The results showed that I. lineariifolia had relatively rich morphological diversity, there were significant differences of morphological characteristics, photosynthetic parameters and chemical constituents among populations. There was positive correlation on morphological characteristics and P(n). Twelve populations were divided into three-type. The three populations of Xuyi, Mingguang and Fengyang were of narrower-longer leaf, bigger biomass,better photosynthetic and higher chemical constituents. Then they were classified for a similar group. It proved that the three populations were more suitable for cultivation and promotion.
Biomass
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China
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Flowers
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chemistry
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growth & development
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metabolism
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Inula
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chemistry
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classification
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growth & development
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metabolism
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Photosynthesis
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Plant Leaves
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chemistry
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growth & development
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metabolism
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Plant Stems
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chemistry
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growth & development
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metabolism