1.Effect of response to phenylephrine-mediatedsignal pathway in renal arteries of offspring rats inducedby maternal high-salt diet
Yuan ZHONG ; Juan WANG ; Linling SHI ; Zhice XU ; Caiping MAO
Chinese Pharmacological Bulletin 2017;33(4):492-497
Aim To study the effect of high salt diet during pregnancy on the development of renal vessels in offspring rats and its mechanism.Methods Natural pregnant Sprague-Dawley rats were randomly divided into high-salt group and control group.The pregnant rats in the high-salt group were given high-salt diet of 8% NaCl content , while the control group normal diet with 1% NaCl content.In both groups, pregnant rats were given normal drinking water.After delivery, all mothers returned to normal diet and all neonatal rats were breast-fed until one month old.The adult male off springs were used as experimental animals.The vessel tone of renal interlobar arteries and electrophysiological behavior of single vascular smooth muscle cells (VSMCs) were detected respectively.Results The contractile response of renal arteries to phenylephrine(Phe) in high-salt group was stronger than that in the control group(P<0.05).The effect of protein kinase C(PKC) non selective blocker GF109203X on Phe-induced contraction in two groups also showed significant difference(P<0.05).In electrophysiology experiments, Phe inhibited high-conductance Ca2+-activated K+ channel(BK channel) currents in renal arteriolar smooth muscle cells in two groups, and the inhibitory effect was more pronounced in high-salt offsprings (P<0.05).GF109203X could eliminate the response of Phe on BK currents in both groups(P>0.05).Conclusions High-salt diet during pregnancy could increase the sensitivity of renal interlobar arterial contractile response to Phe in adult male offsprings, which is associated with PKC-mediated BK channels pathway.Maternal high-salt diet during pregnancy may increase the risk of renal vascular diseases in adult offsprings.
3.The application of implantable venous access ports in management of postoperative breast cancer patients
Zhimin LIU ; Yuan ZHONG ; Xueqing JIANG ; Pengfei SHI ; Yang LI
Chinese Journal of Endocrine Surgery 2016;10(2):148-151
Objective To investigate and analyze the experience of planting and maintaining implantable venous access ports(IVAP) in management of post-operative breast cancer patients. Methods Breast cancer pa-tients receiving IVAP after surgery from Mar. 2011 to Jun. 2014 were retrospectively analyzed. The relative com-plications were documented and summarized during implanting operation. Results 468 patients received IVAP, among whom 451 patients underwent piercing implantation via right internal jugular vein, 15 patients underwent piercing implantation via right subclavian vein, and 2 patients underwent piercing implantation via left internal jugular vein. The mean cathe tering leng th was 12.8 cm for patients receiving IVAP via right internal jugular vein, ranging from 12 to 15 cm. Thereinto, 30(6.4%) patients experienced shot-term complications including 16 cases of puncture difficulty, 5 cases of accidental arterial puncture, 2 cases of extravasation, 2 cases of blood aspiration dif-ficulty and 5 cases of arrhythmia. Three cases had long-term complications as the following:one case of catheter-re-lated infection, one case of catheter lost, and one case of incision rupture. Conclusions IVAP is a safe and effec-tive intravenous infusion device. It is crucial to choose individualized implanting access and length by professional surgical team.
4.CT manifestations of pediatric mesenchymal hamartoma of liver
Xiaoxia WANG ; Yumin ZHONG ; Xinyu YUAN ; Ying ZHOU ; Meihua SHI
Chinese Journal of Medical Imaging Technology 2017;33(9):1288-1292
Objective To explore the CT manifestations of pediatric mesenechymal hamartoma of liver (MHL).Methods Clinical data of 15 cases with MHL confirmed by surgery and pathology were retrospectively analyzed.All children were performed with CT scans including plain and enhanced scans,and the imaging features were analyzed.Results All the lesions were solitary,and 9 masses located at the right lobe of liver,4 located at the left lobe,the others located at both right and left lobe.The maximum diameter of lesions was from 5 cm to 30 cm,with an average of (11.52±6.84) cm.Ten cases were cystic and solid mixed,5 cases were solid.After contrast administration,the solid component and the septa of the masses showed enhancement while no enhancement was observed in the cystic component.Two cases had the spot-like calcification.Conclusion MHL has some special characteristics in the CT scan before surgery,which should be differentiated from other cystic and solid tumors of live.Some MHLs can be diagnosed when combined with the clinical information and CT images.
5.Inhibitory effects of ethyl acetate extract of Huanglian Jiedu decoction on hyphae development of Candida albicans.
Tian-ming WANG ; Yuan-yuan YAN ; Gao-xiang SHI ; Dan XIA ; Jing SHAO ; Chang-zhong WANG
China Journal of Chinese Materia Medica 2014;39(24):4834-4838
OBJECTIVETo investigate the effects of ethyl acetate extract of Huanglian Jiedu decoction (EAHD) on hyphae development of Candida albicans.
METHODInverted microscope, fluorescence microscope, SEM were applied to inspect the Morphological change of C. albicans treated by EAHD at different concentrations. Solid agar plate was utilized to evaluate the colony morphology. Quantitative Real-ime PCR(qRT-PCR) was adopted to observe the expression of hyphae-specific genes such as HWP1, ALS3, UME6, CSH1, SUN41, CaPDE2.
RESULTEAHD with concentration of 312 and 1 250 mg . L-1 could inhibit formation of hyphae and colony morphology. The expression of HWP1, ALS3, UME6, CSH1 were downregulated 4. 13, 3. 64, 2. 46, 2. 75 folds ,while the expression of SUN41 were upregulated 7. 26 folds, CaPDE2 keep unchanged.
CONCLUSIONEAHD could inhibit formation of hyphae and colony morphologies of C. albicans through downregulating HWP1, ALS3, UME6 and CSH1.
Acetates ; Biofilms ; drug effects ; growth & development ; Candida albicans ; cytology ; drug effects ; genetics ; growth & development ; Down-Regulation ; Drugs, Chinese Herbal ; pharmacology ; Fungal Proteins ; genetics ; Gene Expression Regulation, Fungal ; drug effects ; Hyphae ; Medicine, Chinese Traditional ; Microscopy, Fluorescence ; Reverse Transcriptase Polymerase Chain Reaction
6.Needle-knife closed solution combined with minor adjusting of spine for the treatment of neck-shoulder syndrome.
Yong-Zhong ZHOU ; You-Zhong ZHANG ; Gui-Zun YANG ; Zhi-Qiang YUAN ; Liang SHI
China Journal of Orthopaedics and Traumatology 2013;26(8):702-704
OBJECTIVETo evaluate therapeutic effect of the needle-knife closed solution combined with minor adjusting of spine for treatment of neck-shoulder syndrome.
METHODSFrom April 2010 to August 2011,120 patients with neck-shoulder syndrome were treated with the needle-knife closed solution combined with minor adjusting of spine, and included 45 males and 75 females and aged from 40 to 68 years old. The disease course was from 3 days to 10 years. After the operation, all patients taken the medicine of activating blood circulation herbs. At the 3rd, 7th, 10th day after operation, spinal rotation massage was performed on these patients. After the healing of the needle points, traditional Chinese medicine herb fumigation was applied on the needle points, and the patients were directed to do the cervical spine exercise. Therapeutic effect of the patients was evaluated by the neck disability index (NDI).
RESULTSAll patients were followed up after 3 weeks' treatment. The pain of neck-shoulder was relieved, and the range of motion was improved,the NDI score lowered from 49.30 +/- 1.35 before treatment to 10.15 +/- 1.18 at 3 weeks after treatment (t = 2.116, P < 0.05).
CONCLUSIONThe needle-knife closed solution combined with minor adjusting of spine for the treatment of neck-shoulder syndrome can relieve the pain in the neck-shoulder and improved the motion of the neck. The key for the effect is accurate location before operation, sufficient adhesion solution during the operation and spinal minor adjusting after operation.
Adult ; Aged ; Female ; Humans ; Male ; Manipulation, Spinal ; methods ; Middle Aged ; Myofascial Pain Syndromes ; therapy ; Neck Pain ; therapy ; Shoulder Pain ; therapy
7.Icariin inducting MC3T3-E1 cell proliferation and differentiation with the activation of BMP-2 intracellular signal pathway
Huifang ZHOU ; Nianke SHI ; Yuan XUE ; Zhong YANG ; Chao ZHANG ; Shuo WANG
Chinese Journal of Orthopaedics 2013;(6):664-669
Objective To explore the regulation function of Icariine on the expression of bone morphogenetic protein signaling pathway Smad1,Smad5,Smad4 and to explore the mechanism of promoting MC3T3-E1 cell proliferation and differentiation.Methods MC3T3-E1 cells were treated by 0,10-9,10-8 and 10-7 mol/L Icariine respectively.After stimulated by Icariine 1 d,2 d and 3 d,MTT method and population diploid time were used to observe the cell proliferation,and the cell alkaline phosphatase (ALP) level was assayed.At 21 days later,the alizarin red staining was proceeded.At 1,2 and 3 days later,the RT-PCR was used to detect the mRNA expression level about Smad1,Smad5 and Smad4,and the Western blot was to detect the Smad1,5 and Smad4 protein.At 2 days later,the RT-PCR was used to detect the mRNA expression level about Runx2,BMP-2 and osteoprotegerin (OPG),and the Western blot was used to analyze osteocalcin (OCN) protein level.Results After simulated by Icariine,the proliferation (MTT test),the ALP activity and mineralization of osteoblasts were increased,the cell population diploid was reduced (P<0.05).At 1,2 and 3days later,the results of RT-PCR showed that Icariine continued increasing the mRNA level of Smad1,5 and Smad4 in 10-8 mol/L.At 2 days later,Smad1,Smad5 and Smad4 mRNA expression were obviously reduced in 0 mol/L group,and At 3 days later,Smad1,Smad5 and Smad4 mRNA expression were obviously reduced in 10-9 and 10-7 mol/L groups.At 2 days later,BMP-2,Runx2 and OPG mRNA were obviously increased in 10-8 mol/L group.The results of Western blot showed that OCN,Smad1,Smad5 and Smad4 protein were obviously up-regulated in 10-8 mol/L group.Conclusion Icariine occurs the expressions of BMP-2,Runx2,Smad1,Smad5 and Smad4 by stimulating the bone morphology of MC3T3-E1 cells directly,and promotes the osteogenic differentiation in the manner of expression level synchronous rising.
8.Role of NRF2 signaling pathway in trichloromethane-induced oxidative stress in L02 cells
TAN Shi ying ZHONG Yuan fang QIU Yi bing ZOU Zhi hui YU ri an
China Occupational Medicine 2022;49(05):530-
Objective - ( )
To investigate the effects of nuclear factor erythroid 2 related factor 2 NRF2 on the oxidative stress
( ) Methods ) ,,
induced by trichloromethane TCM in human normal hepatocyte L02 cells. i L02 cells were stimulated with 1 2
, , , ( ),
4 8 12 16 and 20 mmol/L TCM solution dissolved in dimethyl sulfoxide and the control group and blank group were set
, - ,
up. After culturing for 24 hours the cell viability was detected by CCK 8 colorimetric method and the concentration of TCM
) -, -
stimulation was screened. ii L02 cells in logarithmic growth phase were randomly divided into control group and low medium
- , , ,
and high dose groups. After 24 hours of exposure to 0 4 8 and 12 mmol/L TCM the cells were collected. The activity of
( ), ( ), ( - ) ( )
superoxide dismutase SOD catalase CAT glutathione peroxidase GSH Px and the level of malondialdehyde MDA
NRF2, - (HO-1),
were detected by colorimetric analysis. The mRNA expression levels of heme oxygenase 1 glutamate cysteine
(GCLC) () (NQO1) -
ligase catalytic subunit and NAD P H quinone dehydrogenase 1 were detected by real time fluorescence
, - ,
polymerase chain reaction. The protein levels of NRF2 HO 1 GCLC and NQO1 were detected by Western blotting.Results ) , , , ,
i When the concentration of TCM was 4 8 12 16 and 20 mmol/L the survival rate of L02 cells decreased
( P ) , ,
significantly compared with the control group all <0.05 . The concentration of 0 4 8 and 12 mmol/L were selected as the
) , -
stimulation doses for subsequent experiments. ii Compared with the control group the activities of SOD and GSH Px in L02
( P ) ( P ), -
cells in the three doses groups decreased all <0.05 and the levels of MAD increased all <0.05 with a dose effect
- (P ),
relationship. The CAT activity of L02 cells in the medium dose group was lower than that in the control group <0.05 and the
- ( P )
CAT activity of L02 cells in the high dose group was lower than that in the others three groups all <0.05 . Compared with the
, NRF2 - (P ),NRF2
control group the relative expression levels of mRNA in L02 cells in the low dose group decreased <0.05
- (P ), NRF2
mRNA in L02 cells in the medium dose group increased <0.05 mRNA and NRF2 protein expression in L02 cells in
( P ) HO-1,GCLC, NQO1 ,
the highdose group increased both <0.05 . The relative expression level of mRNA and GCLC NQO1
( P )
protein expression in L02 cells in the three doses groups increased compared with the control group all <0.05 . The relative
NRF2 - - -
expression level of mRNA in L02 cells in the high dose group was higher than that in the low and medium dose groups
( P ), - (P ),
both <0.05 and the relative expression of NRF2 protein was higher than that in the low dose group <0.05 but the
HO-1 GCLC - - (
relative expression levels of and mRNA and HO 1 protein level were lower than those in the medium dose group all
P )Conclusion -
<0.05 . TCM exposure can inhibit the proliferation of L02 cells by inducing oxidative stress with a dose effect
,
relationship. In this process the antioxidant mechanism mediated by NRF2 was activated. The expression of antioxidant defense
, - ,
and detoxification related target genes downstream of NRF2 signaling pathway was activated and the expression of HO 1
-
GCLC and NQO1 was up regulated to alleviate the oxidative damage caused by TCM.
9.Detection of CDX-2, CK7 and CK20 in primary and metastatic ovarian carcinoma.
Zhong-fu YUAN ; Hui-rong SHI ; Hong-min SUN ; Wen-cai LI
Chinese Journal of Pathology 2007;36(8):555-556
Adenocarcinoma
;
metabolism
;
secondary
;
Adult
;
Aged
;
CDX2 Transcription Factor
;
Carcinoma, Signet Ring Cell
;
metabolism
;
pathology
;
Colonic Neoplasms
;
metabolism
;
pathology
;
Cystadenocarcinoma, Mucinous
;
metabolism
;
pathology
;
Cystadenocarcinoma, Serous
;
metabolism
;
pathology
;
Diagnosis, Differential
;
Female
;
Homeodomain Proteins
;
metabolism
;
Humans
;
Keratin-20
;
metabolism
;
Keratin-7
;
metabolism
;
Middle Aged
;
Ovarian Neoplasms
;
metabolism
;
pathology
;
secondary
;
Trans-Activators
;
metabolism
;
Young Adult
10.The diagnosis and treatment of the sharp injury in the back.
Shi CHENG ; Zhiqiang ZHONG ; Ruotian WANG ; Yiezhi ZHAO ; Zhihong LI ; Ming JIANG ; Huisheng YUAN ; Dongbo FAN
Chinese Journal of Practical Surgery 2001;21(4):216-217
Objective To improve the level of diagnosis and treatment of the sharp injury in the back. Methods 47 cases which were treated from Jan 1991 to May 2000 were reviewed. ResultsAmong 37 cases who underwent the exploration, 5 cases died. Among 10 cases who underwent conservative treatment, 2 cases died. ConclusionThe condition of sharp injury in the back is very complicated,it is easy to be misdiagnosed, the mortality is high. Saving should be equalled with the diagnosis and treatment. The application of wound exploration, abdominal puncture, ultrasound examination and X-ray checking is valuable to the diagnosis. The patients with operation indications should be operated at once,while the others should be observed for some time to prevent the delayed clinical manifestation.