1.Diagnostic value of growth hormone stimulating test in dwarfism of children and related influencing factors
International Journal of Laboratory Medicine 2015;(8):1036-1037,1040
Objective To investigate the diagnostic value of growth hormone(GH) stimulating test in dwarfism of children and related influencing factors .Methods Arginine and L‐dopa were applied to perform GH stimulating test in 642 children with dwarf‐ism .GH levels were detected at 30 ,60 ,90 ,120 ,150 ,180 min after stimulation .All children were divided into GH deficiency (GHD) group ,with peak value of GH less than 10 ng/mL ,and non‐GHD group ,with peak value of GH at least 10 ng/mL .Physical and la‐boratory data of the two groups were compared .Results The proportion of children with GHD and without GHD were 68 .69%and 31 .31% ,respectively ,and with statistical difference(χ2 =6 .19 ,P<0 .05) .The GH peak value ,with a delay ,mainly appeared at 30 and 150 min after stimulation ,accounting for 22 .42% and 34 .27% .Levels of age ,body height standard deviation ,body mass in‐dex ,alanine aminotransferase ,aspartate aminotransferase ,insulin growth factor‐1 and 25‐hydroxyl vitamin D were statistically dif‐ferent between the two groups(P<0 .05) .Conclusion Arginine and L‐dopa combined stimulating test could be used for the diagno‐sis of GHD in children with dwarfism .GH level might be correlated with various physical and laboratory parameters ,which should be considered for the diagnosis of GHD .
2. Optimization of matrix prescription of Compound Qingfengteng Cataplasm by orthogonal test method
Chinese Traditional and Herbal Drugs 2017;48(16):3347-3352
Objective: To optimize the matrix prescription of Compound Qingfengteng Cataplasm (CQC). Methods: Taking the comprehensive senses as evaluation index, the types and dosage of the matrix were investigated by single factor. Further combined with the initial viscosity and holding viscosity index to optimize the matrix prescription of CQC by orthogonal test, and in vitro transdermal absorption experiments were carried out by Franz diffusion pool method to screen penetration enhancers. Results: The optimal formulation of CQC was as follows: 2.5 g of NP-700, 11 g of glycerin, 0.08 g of glycine aluminum, 0.08 g of tartaric acid, 0.8 g of PVP K90, 0.5 g of PVPP, 20 g of water, and 4.2 g of dry extract. 3% nitrile as a penetration agent could enhance penetration action. Conclusion: The preferred matrix prescription is practicable; CQC adhesion is moderate, no residue, paste traits, skin followability are good.
3.Expression of lncRNA TUSC7 in melanoma A375 cell line and its effect on proliferation and apoptosis of melanoma cells
Zhiming YUAN ; Zexu LIN ; Yifeng CHEN ; Xiaohong WU ; Xin LIN
Chinese Journal of Clinical and Experimental Pathology 2017;33(4):408-412
Purpose To investigate the expression level and the role of TUSC7 in human cutaneous malignant melanoma (CMM).Methods Quantitative real time-PCR (qRT-PCR) assay was performed to detect the expression of TUSC7 in 60 cases of CMM tissues,20 cases of benign nevus,4 CMM cell lines,and one normal human epidermal melanocytes.Then overexpression of TUSC7 was performed and its role in tumor progression was explored.Results TUSC7 expression was significantly downregulated in primary CMM tissues (n =60) compared to benign nevi (n =20),which were significantly downregulated in all the four melanoma cell lines,especially in A375 cells,compared with the normal melanocytes cells (all P < 0.05).In comparison with the A375 cells transfected with the empty plasmid,those transfected with pcDNA-TUSC7 showed an obvious decrease in the proliferation and colony formation activity,while increase in the apoptosis rate (all P < 0.05).Conclusion Our results suggested that the dysregulation of TUSC7 may play an important role in the CMM progression.
4.Mutation analysis of steroid acute regulatory protein gene in a patient affected with congenital lipoid adrenal hyperplasia
Ruimin CHEN ; Xin YUAN ; Ying ZHANG ; Xiaohong YANG ; Xiangquan LIN
Chinese Journal of Endocrinology and Metabolism 2014;30(11):980-984
Objective To analyze the clinical characteristic s of an infant with congenital lipoid adrenal hyperplasia (CLAH),and to sequence the acute regulatory protein (steroid acute regulatory,StAR) gene of the infant patient and her pedigree.Methods Physical examination,laboratory tests,and imaging examination of the 11-month-old patient with CLAH were collected.DNA was extracted from blood samples of the patient and her parents.The 7 exons of StAR gene were amplified by PCR and then sequenced.Results Dark skin,girl vulva,and one each 1.0 cm×1.0 cm palpable lump in inguinal area bilaterally were observed.The adrenocorticotropic hormone (ACTH) was 253 pg/ml,cortisol was 27.6 nmol/L at 8 am,17-hydroxyprogesterone was 3 nmol/L.Uhrasound showed that sign of testicular ultrasonography existed in bilateral inguinal regions.Karyotype analysis showed 46,XY.Sequencing of PCR amplified fragments showed that there were two heterozygous mutations c.229C > T,p (Gln77X) and C.659A>G,p (His220Arg) of StAR gene in this patient.By rectifying the disturbance of electrolyte,and treating with hydrocortisone and 9α fludrocortisone,etc,the patient has been stable so far.Conclusion The patient presents typical clinical manifestations.Two heterozygous mutations including c.229C >T,p (Gln77X) from maternal and C.659A>G,p (His220Arg) from paternal of StAR gene were detected.Wherein the c.659A>G,p.(His220Arg) as a novel point mutation of StAR gene,has not been reported so far.
5.Fastigial cerebellar nucleus may be involved in the pathogenesis of post-stroke depression through the cerebellum-hypothalamic pathways in rats Fastigial cerebellar nucleus may be involved in the pathogenesis of post-stroke depression through the cerebellum-hypothalamic pathways in rats
Yuan LI ; Rubo SUI ; Xin ZHANG ; Yuhan LIN
Journal of Xi'an Jiaotong University(Medical Sciences) 2015;(2):164-168
ABSTRACT:Objective To investigate whether medial cerebellar nucleus may be involved in the pathogenesis of post-stroke depression (PSD)and explore the pathway that mediates this effect.Methods Healthy SD rats were randomly divided into five groups:control group,stroke group,PSD group,medial cerebellar nucleus (Med)lesion group,and superior cerebellar peduncle (xscp)lesion group.The ethological score of depression was evaluated.The neurotransmitters of Glu and GABA in the lateral hypothalamic area were detected by high performance liquid chromatography.Results Compared with those in control group,the levels of GABA and Glu expressions did not significantly differ in the lateral hypothalamic area in stroke group (P > 0.05 ).In contrast,the levels in PSD group,Med lesion group and xscp lesion group were lower than those in stroke group to different extent (P <0.01). Conclusion These results preliminarily show that medial cerebellar nucleus may participate in the pathogenesis of post-stroke depression,which may be mediated by the cerebellum-hypothalamic pathway.
6.CT and MRI in the comprehensive diagnosis of intrahepatic peripheral cholangiocarcinoma
Bin QIN ; Cuiping YUAN ; Youdan LIN ; Xin ZHU
Journal of Practical Radiology 2015;(10):1624-1627
Objective To analyze the value of CT and MRI in the diagnosis of intrahepatic peripheral cholangiocarcinoma (IHPCC ). Methods 32 cases of intrahepatic peripheral cholangiocarcinoma were collected and analyzed retrospectively.25 patients underwent plain and enhanced CT scan,while 18 cases underwent plain MRI and MRCP(8 of them underwent MRI dynamic enhancement scanning).6 cases underwent plain and enhanced scan of CT and MRI simultaneously.Results 32 intrahepatic lesions were found,with CT and MRI revealing all lesions.Lesions of IHPCC showed as hypo-or iso-density on the plain CT,slightly hypo-intensity on T1 WI and uneven mild hyper-intensity on T2 WI.During arterial phase of contrast-enhanced scan,18 lesions showed as marginal mild linear enhancement,3 cases with obvious enhancement and 11 cases with no enhancement.During portal phase,venous phase and delayed scan,19 lesions showed as progressive mild-to-mod-erate uneven enhancement,while 6 cases enhanced homogeneously.25 cases showed characteristic significantly delayed enhance-ment.MRCP could display satisfactory of Intra-and-Extra-hepatic bile ducts.Other signs include intrahepatic bile ducts dilation (23 cases),intrahepatic bile duct stones (6 cases),hepatic lobe atrophy (1 5 cases),and depressed liver capsula (8 cases).Conclusion Both CT and MRI are effective methods for diagnosing of intrahepatic peripheral cholangiocarcinoma.Compared with CT,MRI seems more valuable on presentation the tumor size and border,bile duct involvement,the degree of expansion and portal vein inva-sion,etc.It is more valuable to combine CT with MRI for the diagnosis of intrahepatic peripheral cholangiocarcinoma.
7.Comparison of the effect between the hip replacement and the hip replacement after failed internal fixation in elderly patients with displaced femoral neck fracture
Chunli WANG ; Shuqing TAO ; Deyu CAO ; Xinxin XIN ; Yuan LIN
Chinese Journal of Postgraduates of Medicine 2014;37(11):17-19
Objective To compare the clinical effect of the primary total hip replacement (THR)and the secondary THR after failed internal fixation in elderly patients with displaced femoral neck fracture,so as to investigate the optimal treatment for displaced femoral neck fractures in elderly patients.Methods From January 2006 to December 2012,22 patients treated with a secondary THR after failed internal fixation were chosen as the observation group and 30 patients treated with a primary THR were chosen as the control group,the operation time,blood loss,postoperative Harris scores for hip joint and health-related quality of life (~ index score) were observed and analyzed in two groups.Results Both of the groups were followed up successfully and each of the groups had 1 patient died.There were no joint infection,re-operations and any other complications in both groups.The operation time in observation group was longer than that in control group [(114.82 ±32.13) min vs.(90.63 ± 16.24) min],blood loss was more than that in control group [(551.73 ± 241.62) ml vs.(314.46:± 156.72) ml],there was significant difference (P < 0.05).But the Harris score and KPS index score between two groups had no significant differences (P > 0.05).Conclusion The primary THR in elderly patients with displaced femoral neck fracture has lower risk in operation tocompare with the secondary THR after failed internal fixation,but the two ways are similar in the hip joint function recovery and improve patients quality of life.
8.Osteogenic ability of cryopreserved bone marrow stromal cells complex in vivo
Yuqian ZHENG ; Fang YUAN ; Fuhua YAN ; Xin ZHAO ; Minkui LIN
Chinese Journal of Tissue Engineering Research 2011;15(12):2275-2278
BACKGROUND: Our previous studies have demonstrated that cryopreserved bone marrow stromal cells (BMSCs) still maintain high survival rate, cell proliferation and osteogenic differentiation potentials after thawing. However, this result needs confirmed in vivo environment. OBJECTIVE: To explore the effects of cryopreserved BMSCs and collagenic membrane BME-10X complex on type Ⅰ collagen synthesis in vivo. METHODS: Beagle dog BMSCs were cultured in vitro and cryopreserved for 12 months, which were thawed and prepared complexes with collagenic membrane. The complexes were cultured with mineralization induction medium or normal medium for 5 days, followed by implanting into nude mice. The specimens were harvested and analyzed by gross observation, histopathological and immunohistochemistry at 4 weeks after implantation. The collagenic membrane cultured with mineralization induction medium served as controls. RESULTS AND CONCLUSION: In the control group, the boundary of collagenic membrane was distinctly, without cell growth around boundary or intra collagenic membrane, additionally, there was little type Ⅰ collagen. In the non-induction group, cells grew into collagenic membrane, trabes-like collagen formed, and type Ⅰ collagen distribution increased at 4 weeks. In the induction group, scaffold degraded, more cells grew, and plenty of collagen formed osteoid-like tissues. The distribution of typeⅠcollagen was obviously increased than that of other groups. The findings demonstrated that cryopreserved BMSCs possess strong osteogenic differentiation potentials after proliferation and induction combined with collagenic membranes in vitro.
9.Annual quality analysis of public health service of Shenzhen in 2011
Dan ZHANG ; Hancheng LIN ; Xin ZHANG ; Xueli YUAN
Chinese Journal of Hospital Administration 2012;28(10):776-780
Objective To assess the public health service quality objectively in Shenzhen,and promote the equity of basic public health services.Methods The criterion and method of the assessment were established by municipal health administrative department,the assessment of institutions and regions were conducted by experts selected by municipal professional institutions.Regional assessment was the comprehensive evaluation of public health service qualities of professional public health institutions,medical institutions and the community health centers.The assessment of the degree of public health service quality satisfaction was accomplished by a third-party institution.Results The accomplishment ratio of indicators for public health service quality was 93.2%.This ratio has witnessed a high increase with mental health institutions,occupational disease prevention and control institutions and health education institutions on one hand.On the other,it has dropped with institutions of disease control,chronic disease control and medical institutions within the region.On the whole,this ratio has increased with all the districts to different extents.Despite the overall improvement of public health capabilities citywide,imbalances are found among districts and institutions as well.Conclusion It is imperative to further improve the public health service system and equity while carrying out specific tasks in this respect.
10.Progress in pharmacological effects and clinical applications of berberine
Yu XING ; Xin LIU ; Yuan LIN ; Yong ZHANG
Chinese Journal of Pharmacology and Toxicology 2017;31(6):491-502
Berberine is an isoquinoline alkaloid isolated from Rhizoma Coptidis and Cortex Phellodendri,which has a long medical history in China.Recent studies have indicated that berberine has multiple pharmacological activities including anti-inflammatory,anti-microorganisms,anti-cancer,cardiac protection,glucose lowering,regulating lipid metabolism and immune suppression.Berberine has been used for the treatment of intestinal infectious diseases for many years.With the continuous progress of the research,it is reported that berberine has many new clinical applications,including treatment of the cardiovascular disease,metabolic syndrome and its complications,cancers,abdominal adhesions and chlamydia trachomatis infection.This review is intended to introduce the role of berberine in various aspects of pharmacological effects,molecular mechanisms and clinical applications.