1.Negative Modulation of NO for Diaphragmatic Contractile Reduction Induced by Sepsis and Restraint Position
Jian XIANG ; Sudong GUAN ; Xianghe SONG ; Huiyun WANG ; Zhenyong GU
Journal of Forensic Medicine 2014;(3):161-165
In practice of forensic medicine, potential disease can be associated with fatal asphyxia in re-straint position. Research has demonstrated that nitric oxide (NO) and nitric oxide synthase (NOS) are plentifully distributed in skeletal muscle, contributing to the regulation of contractile and relaxation. In the current study, respiratory functions, indices of diaphragmatic biomechanical functions ex vivo, as well as NO levels in serum, the expressions of diaphragmatic inducible NOS (iNOS) mRNA, and the effects of L-NNA on contractility of the diaphragm were observed in sepsis induced by cecal ligation and punc-ture (CLP) under the condition of restraint position. The results showed that in the CLP12-18 h rats, respiratory dysfunctions; indices of diaphragmatic biomechanical functions (Pt, +dT/dtmax, -dT/dtmax, CT, Po, force over the full range of the force-frequency relationship and fatigue resistance ) declined progressive-ly; the NO level in serum, and iNOS mRNA expression in the diaphragm increased progressively; force increased significantly at all stimulation frequencies after L-NNA pre-incubation. Restraint position 1 h in CLP12 h rats resulted in severe respiratory dysfunctions after relative stable respiratory functions, almost all the indices of diaphragmatic biomechanical functions declined further, whereas little change took place in NO level in serum and diaphragmatic iNOS mRNA expression; and the effects of L-NNA were lack of statistical significance compared with those of CLP12 h, but differed from CLP18 h group. These results suggest that restraint position and sepsis act together in a synergistic manner to aggravate the great reduction of diaphragmatic contractility via, at least in part, the negative modulation of NO, which may contribute to the pathogenesis of positional asphyxia.
2.The Effect of trichloroisocyanuric acid (TCCA) on the reproductive system of SD male rat.
Xiang-rong SONG ; Jian-xun HUANG ; Ting-feng CAI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2012;30(7):523-526
Animals
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Male
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Organ Size
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Rats
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Rats, Sprague-Dawley
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Spermatozoa
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drug effects
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growth & development
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Testis
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drug effects
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Triazines
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toxicity
3.Negative modulation of NO for diaphragmatic contractile reduction induced by sepsis and restraint position.
Jian XIANG ; Su-Dong GUAN ; Xiang-He SONG ; Hui-Yun WANG ; Zhen-Yong GU
Journal of Forensic Medicine 2014;30(3):161-165
In practice of forensic medicine, potential disease can be associated with fatal asphyxia in restraint position. Research has demonstrated that nitric oxide (NO) and nitric oxide synthase (NOS) are plentifully distributed in skeletal muscle, contributing to the regulation of contractile and relaxation. In the current study, respiratory functions, indices of diaphragmatic biomechanical functions ex vivo, as well as NO levels in serum, the expressions of diaphragmatic inducible NOS (iNOS) mRNA, and the effects of L-NNA on contractility of the diaphragm were observed in sepsis induced by cecal ligation and puncture (CLP) under the condition of restraint position. The results showed that in the CLP12-18h rats, respiratory dysfunctions; indices of diaphragmatic biomechanical functions (Pt, +dT/dt(max), -dT/dt(max), CT, Po, force over the full range of the force-frequency relationship and fatigue resistance) declined progressively; the NO level in serum, and iNOS mRNA expression in the diaphragm increased progressively; force increased significantly at all stimulation frequencies after L-NNA pre-incubation. Restraint position 1 h in CLP12 h rats resulted in severe respiratory dysfunctions after relative stable respiratory functions, almost all the indices of diaphragmatic biomechanical functions declined further, whereas little change took place in NO level in serum and diaphragmatic iNOS mRNA expression; and the effects of L-NNA were lack of statistical significance compared with those of CLP12 h, but differed from CLP18 h group. These results suggest that restraint position and sepsis act together in a synergistic manner to aggravate the great reduction of diaphragmatic contractility via, at least in part, the negative modulation of NO, which may contribute to the pathogenesis of positional asphyxia.
Animals
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Asphyxia
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Diaphragm/physiology*
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Muscle Contraction
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Muscle, Skeletal
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Nitric Oxide/metabolism*
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Nitric Oxide Synthase
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Nitric Oxide Synthase Type II
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Rats
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Respiration Disorders
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Restraint, Physical
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Sepsis
4.Expression of Recombinant Nematode Anticoagulant Peptide in Pichia Pastoris
Yue-Hua JIANG ; Jian SONG ; Jian-Wei WANG ; Jin-Xiang HAN ; Tao HONG ;
China Biotechnology 2006;0(07):-
Objective: To acquire recombinant nematode anticoagulant peptide ( NAP) with high anticoagulant activity. Methods: Pichia pastoris GS115 strain was transformed with recombinant yeast expression vector pPICS. 5K-rNAP. Expression of rNAP was induced with methanol after the identification of positive strains. NAP expressed in the collected yeast culture supernatant was confirmed with SDS-PAGE and Western blot. The biological activity of the products was validated with PT (prothrombin time) , INR (international normalized ratio) and APTT (activated partial thromboplastin time) , respectively. Results: The yeast strains expressing NAP were identified. The rNAP was secreted into culture supernatant with a molecular weight of about 10 kDa due to glycosylation, which is a little bigger than that predicted (8.7kDa). The anticoagulant efficiency of rNAP was confirmed with the in vitro assays. Conclusion: The recombinant nematode anticoagulant peptide with high biological activity was successfully expressed in Pichia pastoris and can be used in the future development of novel anticoagulant agent.
5.Observation of the tape after TVT-O surgery using two and three dimensional ultrasonography in the patients with stress urinary incontinence
Li, JIANG ; Pei-xiang, YE ; Yan-feng, SONG ; Jian-ping, ZHU
Chinese Journal of Medical Ultrasound (Electronic Edition) 2010;07(12):2117-2121
Objective To observe the position and mobility of the tape after tension-free vaginal tape-obturator(TVT-O) surgery using transperineal two and three dimensional ultrasonography in patients with stress urinary incontinence.Methods A total of 32 patients with stress urinary incontinence who had TVT-O surgery and cured were enrolled.Transperineal two and three dimensional ultrasonography were performed after operation 3 months later.Both the position,morphology and mobility of the tape at rest and during Valsalva menuaver were observed.Results The tapes were mainly located in the 1/3 connection of the middle and distal urethra.The length of the urethra and the length of the urethra between the bladder neck and the proximal tape at valsalva menuaver were longer than those at rest.The tapes moved front-down at valsalva manuaver according to the mean distance between the tape and the symphysis pubis.The angles of the tapes were smaller at valsalva manuaver without significant difference.Conclusion It is useful to observe the position,morphology and mobility of the tape using transperineal two and three dimensional ultrasonography.The changes of the position and morphology of the tapes at valsalva menuaver were not significant.But the tapes can strengthen the urine control in the middle of urethra.
6.Study on traceability system of genuine medicinal materials.
Bao-Sheng LIAO ; Jing-Yuan SONG ; Cai-Xiang XIE ; Jian-Ping HAN ; Shi-Lin CHEN
China Journal of Chinese Materia Medica 2014;39(20):3881-3888
Genuine medicinal materials with special characteristics of Traditional Chinese Medicine (TCM), is recognized as high quality medicine. Both ancient records and modern research considered that the origin is an important reason for the formation of genuine medicinal materials. However, blindly transplanting of genuine medicinal materials has led to the quality decline and counterfeit medicines appeared in production or sale progress, which may increase the risk of accidents in TCM. Frequent accidents emerged in Chinese herbal affects its export. What's more, it is a great threat to the medication safety in TCM clinical. There is an urgent need to implement traceability systems of TCM, which could provide convenient information record and traceability of TCM circulation. This paper reviews a variety of technical methods for genuine medicinal materials traceability, and proposed the establishment of genuine medicinal materials traceability system based on two-dimensional code and network database.
Databases, Factual
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Drugs, Chinese Herbal
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chemistry
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economics
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standards
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Medicine, Chinese Traditional
7.Clinical randomized controlled trials of acupoint catgut-embedding for simple obesity: a meta-analysis.
Jian-Qiong LIAO ; Xiang SONG ; Ying CHEN ; Li-Chang LIANG ; Sheng-Xu WANG
Chinese Acupuncture & Moxibustion 2014;34(6):621-626
The clinical therapeutic effect of acupoint catgut-embedding for simple obesity was systemically analyzed to provide reference and assistance for its clinical treatment and research. By searching in the CBM, CNKI, VIP, Wanfang, Pubmed, Springer and Medline databases, clinical randomized controlled trials (RCT) of acupoint catgut-embedding for simple obesity published from Jan, 2009 to July, 2013 were collected while Revman 5. 2 software was applied to perform the Meta-analysis. Totally 19 articles were acquired with 1 658 cases involved. The effective rate was selected as primary outcome measure in 19 articles. The Meta-analysis was performed among homogeneous researches. The results indicated that compared with other therapies, pooled OR of acupoint catgut-embedding was 2.45 with 95% CI [1.81, 3.32]; in the test for overall effect, Z = 5.81, implying the efficacy difference of two therapies was significant in the treatment of simple obesity (P < 0.01). In subgroups analysis, in the event of treatment session with more than 3 months, compared with other therapies, pooled OR of acupoint catgut-embedding was 2.61 with 95% CI [1.53, 4.46]; in test for overall effect, Z = 3.51, implying the efficacy difference of two therapies was significant in the treatment of simple obesity (P < 0.01); in the event of treatment session with less than 3 months, compared with other therapies, pooled OR of acupoint catgut-embedding was 2.38 with 95% CI [1.65, 3.44]; in test for overall effect, Z = 4.46, implying in the treatment of simple obesity the efficacy difference of two therapies was significant (P < 0.01). Compared with electroacupuncture, OR of acupoint catgut-embedding was 1.79, 95% CI [1.08, 2.95] (P = 0.02). Compared with acupuncture, OR of acupoint catgut-embedding was 1.89, 95% CI [1.16, 3.09] (P = 0.01), which explained that compared with electroacupuncture and acupuncture, the efficacy of acupoint catgut-embedding was significantly different. In a word, the clinical efficacy of acupoint catgut-embedding is superior to other therapies in the treatment of simple obesity.
Acupuncture Points
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Acupuncture Therapy
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Catgut
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Electroacupuncture
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Humans
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Obesity
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therapy
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Randomized Controlled Trials as Topic
8.Endoscopic surgical strategy of non-functional urinary bladder paraganglioma in children.
Song-tao XIANG ; Shu-sheng WANG ; Jian-fu ZHOU ; Shu GAN ; Zhi-qiang CHEN
Chinese Medical Journal 2013;126(5):999-1000
Child
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Endoscopy
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Humans
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Male
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Paraganglioma
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surgery
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Urinary Bladder Neoplasms
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surgery
9.RNA-Seq and genuine traditional Chinese medicine.
Xiao-Yue WANG ; Jing-Yuan SONG ; Cai-Xiang XIE ; Jian-Ping HAN ; Shi-Lin CHEN
Acta Pharmaceutica Sinica 2014;49(12):1650-1657
RNA-Sequencing (RNA-Seq) is a newly-developed method in transcriptome research, it can afford more accurate transcription information and be more quickly by using Next-generation Sequencing (NGS) technology. RNA-Seq has been widely used in various biological fields. Genuine traditional Chinese medicines (TCM), with good quality and therapeutic effect, were always praised highly and used by famous physicians. The geo-herbalism formation of TCM is based on the product of the gene expression at specific space and time. So it has been a research hotspot to analyze the mechanism of biosynthesis through RNA-Seq in the study on the secondary metabolism of medicinal plant. This article mainly illustrates the RNA-Seq and its advantages, it also discusses the potential application in genuine TCM, and it can provide useful information for other researchers.
Drugs, Chinese Herbal
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Gene Expression Profiling
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High-Throughput Nucleotide Sequencing
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Medicine, Chinese Traditional
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Plants, Medicinal
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genetics
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RNA
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Sequence Analysis, RNA
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Transcriptome
10.Effect of combined therapy with bailing capsule and benazepril on urinary albumin excretion rate and C-reactive protein in patients with early diabetic nephropathy.
Jian SONG ; Yan-Hua LI ; Xiang-Dong YANG
Chinese Journal of Integrated Traditional and Western Medicine 2009;29(9):791-793
OBJECTIVETo observe the effect of combined therapy with Bailing Capsule (BC) and benazepril on the levels of urinary albumin excretion rate (UAER) and C-reactive protein (CRP) for exploring its protective effect on early diabetic nephropathy.
METHODSSixty patients with early diabetic nephropathy were randomly assigned to the control group treated by benazepril alone, and the treated group treated by BC and benazepril, and the treatment lasted for 16 weeks. The changes of UAER and CRP levels were measured to estimate the protective effect of the combined therapy.
RESULTSLevels of 24h urinary protein, UAER, CRP were (0.85 +/- 0.32) g/24 h, (83.34 +/- 38.27) microg/min, (2.67 +/- 1.72) mg/L before treatment in the control group, and (0.43 +/- 0.17) g/24 h, (71.22 +/- 31.12) microg/min, (1.05 +/- 0.78) mg/L after treatment and they were (0.87 +/- 0.31) g/24 h, (81.59 +/- 35.69) microg/min, (2.55 +/- 1.66) mg/L before treatment in treated group, and (0.25 +/- 0.29) g/24 h, (57.32 +/- 31.11) microg/min, (0.49 +/- 0.38) mg/L after treatment respectively, all of them decreased after treatment in both groups, showing significant differences as compared with those before treatment (P<0.05, P< 0.01), and the reduction in the treated group was more significant (P<0.01); meanwhile, levels of serum creatinine, fasting blood glucose and HbA1c had somewhat decrease, showing no statistical difference with those before treatment (P >0.05).
CONCLUSIONCombined use of BC and benazepril could significantly lower the UAER and CRP levels in patients with early diabetic nephropathy to alleviate the renal impairment, showing an effect better than that of using benazepril alone.
Adult ; Aged ; Albuminuria ; drug therapy ; Benzazepines ; therapeutic use ; C-Reactive Protein ; metabolism ; Diabetes Mellitus, Type 2 ; drug therapy ; metabolism ; urine ; Diabetic Nephropathies ; drug therapy ; metabolism ; urine ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Phytotherapy