1.A preschool child with primary thrombocytosis.
Chen LING ; Guang-hua ZHU ; Ling JIN
Chinese Journal of Pediatrics 2013;51(7):541-542
Aspirin
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administration & dosage
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therapeutic use
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Blood Cell Count
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Blood Platelets
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drug effects
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physiology
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C-Reactive Protein
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analysis
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Child, Preschool
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Diagnosis, Differential
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Female
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Humans
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Hydroxyurea
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administration & dosage
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therapeutic use
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Interferons
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administration & dosage
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therapeutic use
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Platelet Count
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Thrombocythemia, Essential
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blood
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diagnosis
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therapy
3.Regulatory effects of hedgehog pathway on intestinal epithelial barrier function under hypoxia
Guang YANG ; Xuechao YANG ; Guoqing CHEN ; Lihua SUN ; Hua YANG
Chinese Journal of Digestive Surgery 2013;(6):465-468
Objective To investigate the regulatory effects of hedgehog pathway on intestinal epithelial barrier function under hypoxia.Methods The IEC-6 cells of rats were divided into 3 groups:the normoxia group (21% oxygen concentration),the hypoxia group (2% oxygen concentration) and the hypoxia + cyclopamine group (cells pretreated by 5 mmol/L of cyclopamine,and then exposed in an atmosphere with 2% oxygen concentration).The mRNA expressions of IHH,PTCH and GLI-1 were detected,and the transepithelial electrical resistance (TER) was determined.The protein expressions of tight junction proteins (ZO-1,Occludin,Claudin-1) and IHH were assayed by using the Western blot.All data were analyzed using the one-way analysis of variance or LSD-t test.Results The relative mRNA expressions of IHH,PTCH and GLI-1 were 0.056 ± 0.009,0.459 ± 0.087,0.142 ± 0.023 in the normoxia group,and 0.303 ± 0.052,0.678 ± 0.073,0.483 ± 0.061 in the hypoxia group,with significant difference between the 2 groups (t =-14.05,-11.85,-6.52,P < 0.05).The relative protein expressions of IHH in the normoxia group and the hypoxia group were 0.39 ±0.06 and 0.91 ±0.15,with a significant difference between the 2 groups (t =-8.08,P < 0.05).The TERs of the normoxia group,the hypoxia group and the hypoxia + cyclopamine group were (134 ± 5) Ohm/cm3,(100 ± 6) Ohm/cm3 and (118 ± 5) Ohm/cm3,with significant difference between the 3 groups (F =1.04,P < 0.05).Compared with the normoxia group,the TER of the hypoxia group was decreased by 27.7% (t =7.84,P < 0.05) ; compared with the hypoxia group,the TER of the hypoxia + cyclopamine group were increased by 16.4%,but it was still significantly lower than the normoxia group (t =4.23,P < 0.05).The expressions of ZO-1,Occludin and Claudin-1 were 1.18 ± 0.24,0.80 ±0.13 and 0.90 ±0.09 in the normoxia group,and 0.58 ±0.08,0.32 ±0.05 and 0.50 ±0.09 in the hypoxia group,and 0.92 ± 0.21,0.43 ± 0.10 and 0.82 ± 0.11 in the hypoxia + cyclopamine group,with significant difference between the 3 groups (F =4.95,2.88,10.09,P <0.05).The expressions of ZO-1,Occludin and Claudin-1 in hypoxia group were decreased by 48.7%,40.0% and 55.6% when compared with the normoxia group (t =12.86,9.35,18.90,P <0.05).The expressions of ZO-1,Occludin and Claudin-1 in the hypoxia + cyclopamine group were increased by 59.9%,35.2% and 65.1% when compared with the hypoxia group (t =5.63,2.92,6.66,P < 0.05).Conclusion Hedgehog signal pathway could be activated under hypoxia,and then the expressions of tight junction proteins are decreased,which finally induces the injury of intestinal epithelial barrier function.
4.Diagnosis and treatment of gastric bronchogenic cyst attaching to lesser curvature
Tao CHEN ; Hua MU ; Juanjuan JIA ; Yiping LIU ; Guang TAN
Chinese Journal of Digestive Surgery 2021;20(5):564-567
Gastric bronchogenic cysts (GBCs) is uncommon with atypical clinical features. It is difficult to diagnose by preoperative imaging examinations. Therefore , postoperative histopatho-logical examination is regarded as the golden bacteria in ultimate diagnosis. The treatment of GBCs:ultrasound-guided fine needle aspiration and endoscopic mucosal resection is only used for small GBCs with intra-cavity growth pattern. However , GBCs with extra-cavity growth pattern is featured with deeply anatomical position , large size , and prone on attaching to vital blood vessels and organs , which makes laparoscopic resection is the first choice in treatment. The authors introduce the diagnosis and treatment of a case of GBCs attaching to lesser curvature , in order to provide references for clinical diagnosis of GBCs.
5.The study of expression of matrix metaUoproteinases-2 in patients with colorectal cancer
Ya MA ; Guang-Ling CAI ; Guang-Yin YU ; Wei-Hua YIN ; Li CHEN ;
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective Research the correlation between expression of MMP-2 in colorectal cancer and patho- logical factors,or biological behaviors in colorectal cancer.Methods The expression of MMP-2 in 68 cases with col- orectal cancer were detected by immunohistochemical staining.Results The expression of MMP-2 in colorectal can- cer was not correlated with tumor region and histologic type,but related with depth of tumor invasion and metasta- sis.The frequency of positive cases in patients with colorectal cancer with of lymph,node metastasis was significantly higher than that in patients without lymph node metastasis(P
6.Pleuropulmonary blastoma in adult: report of a case.
Qiao HE ; Li-jing XUE ; Xiao-hua DENG ; Yan LIU ; Guang-hua CHEN
Chinese Journal of Pathology 2009;38(2):134-135
Humans
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Lung Neoplasms
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metabolism
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pathology
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surgery
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Lymph Node Excision
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Male
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Middle Aged
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Pneumonectomy
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methods
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Pulmonary Blastoma
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metabolism
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pathology
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surgery
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Vimentin
;
metabolism
7.Lipid metabolism and hematological malignancies
Yi-chen LIU ; Ting-ting DU ; Qing-hua WANG ; Zhi-hui ZHANG ; Xiao-guang CHEN
Acta Pharmaceutica Sinica 2021;56(9):2456-2463
With the deepening of research in recent years, tumor metabolic reprogramming has gradually become the focus of research, and targeting tumor cell metabolism has also become a new means of tumor therapy. The metabolic process affects almost all the physiological processes of the organism, and lipid metabolism is an important part of the metabolic process. Studies have shown that changes in lipid uptake, storage and fatty acid synthesis and decomposition have occurred in a variety of tumors. Abnormal lipid metabolism will promote the rapid proliferation of tumors. Abnormal expression of a variety of key metabolic enzymes in the process of lipid metabolism is the key to tumor progression. The purpose of this paper is to explain the metabolic regulation of lipid metabolism and related metabolic enzymes in hematological tumors, and to provide ideas for the treatment of hematological tumors.
9.Changes of C-type natriuretic peptide and neurotensin in rabbits brain injury induced by endotoxin.
Yu-cai ZHANG ; Ding-hua TANG ; Xue-guang ZHANG ; Liang XU ; Li-qin CHEN ; Jihua ZENG
Chinese Journal of Pediatrics 2003;41(2):144-145
Animals
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Brain Injuries
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blood
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cerebrospinal fluid
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chemically induced
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Endotoxins
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toxicity
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Female
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Male
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Natriuretic Peptide, C-Type
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analysis
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Neurotensin
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analysis
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Rabbits
10.Viewing from the toll-like receptor/nuclear factor-kappaB signaling pathway to explore the immunomodulatory mechanism of Chinese drugs.
Hong-guang ZHOU ; Hai-bin CHEN ; Mian-hua WU
Chinese Journal of Integrated Traditional and Western Medicine 2010;30(8):884-888
Many Chinese drugs (CHD) have showed their significant effects of integral immune-regulation, and lots of researches have conducted in recent years for exploring their mechanism from different levels, like cytological, molecular and genetic levels. In this paper, the relation between immune-regulation of CHD and Toll-like receptors/nuclear factor-kappaB (TLRs/NF-kappaB) signaling pathway was introduced in brief based upon the achievements of previous researches. It was pointed out that the two are closely related, to explore mechanism of CHD in this way is meaningful not only for further deepening the theoretical understanding of CHD's pharmacological immunoregulation, but also be practically facilitate for enhancing therapeutic efficacy of CHD and developing new CHD.
Adjuvants, Immunologic
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pharmacology
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Drugs, Chinese Herbal
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pharmacology
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Humans
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NF-kappa B
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immunology
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Signal Transduction
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drug effects
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Toll-Like Receptors
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immunology