0.05). Conclusion Two new polymorphic sites were found in CHRNA7 gene.There were not associated in pathsgenesis of SAD.

Objective To study the antitumor mechanism of DHA compound. Methods RT-PCR was used to investigate the effects of DHA compound on H-Ras and pl6 mRNA transcription in gastric adenocarcinoma. Results Compared with control, the content of H-Ras mRNA was decreased and the content of p16 mRNA was increased in gastric adenocarcinoma significantly after treated with DHA compound. Conclusion The transcription of H-Ras gene was decreased and the transcription of pl6 gene was increased in gastric adenocarcinoma after treated with DHA compound and thus the cancer cell growth was inhibited.

Objective:To report and analyze a rare family of sponduloepiphyseal dysplasia congenital(SEDC) in order to supply more resources for genetic bone disease. Methods:Investigation and analysis was performed on a four generation's family of SEDC.Clinic characteristics including X-ray image and chromosome analysis were evaluated.Results:Nine persons suffered from SEDC in this four(generation's) family.The patients presented with same clinical characteristics.The main bone damages affected vertebrae,articulatio coxae,caput femoris and neck. Conclusion:The mode of inheritance of SEDC may be autosomal dominant inheritance.Gene defect during embryonic period may interfere the growth of osteoepiphysis.Further molecular pathologic studies were needed to find the evidence of genetic prognostication of SEDC.

Objective To study whether Helicobacter pylori CagA protein can control gastrin gene expression and the detailed mechanism. Methods First, pcDNA3. 1ZEO (-)/cagA7 was transfected into gastric cancer cell lines AGS and SGC-7901 cells. At the same time, culturing the Helicobacter pylori NCTC11637 and infecting AGS and SGC-7901 cells with it. Next, in the infected and transfecled AGS and SGC-7901 cells, respectively adding the JAK2 signaling pathway inhibitor AG490 and the ERK signaling pathway inhibitor U0126 to inhibit the two signaling pathway. Untreated gastric cancer cells and empty vector transfected cells as the control. Using real-time fluorescence quantitative PCR to detect the levels of gastrin mRNA in transfected and infected cells. Results After AGS and SGC-7901 cells were transfected with pcDNA3. lZE0(-)/cagA7 and infected with NCTC11637, the results showed that the expression of gastrin mRNA increased significantly (P ＜ 0. 05) in transfected and infected cells as compared with the control group, but after adding the inhibitor AG490 and U0126 respectively, the expression of gastrin mRNA decreased significantly(P＜0.05). Conclution These results suggest that CagA may up-regulate the expression of the gastrin gene, and CagA is one of the important proteins in regulating gastrin gene expression. The ERK/MAPK and JAK/STAT signaling pathways may be involved in controlling of gastrin gene expression by CagA.

OBJECTIVETo explore the nerve regeneration mechanism of electroacupuncture (EA) combined with polysaccharide of gastrodia elate blume (PGB) for secondary thalamic damage of focal cerebral ischemia.

METHODSForty Sprague-Dawley adult rats were randomly divided into a normal control group, a model group, an EA group, a PGB group and an EA + PGB group, 8 rats in each group. The rat model of right middle cerebral artery occlusion was prepared by suture-occluded method. Two weeks after model establishment, rats in the normal control group and model group received no treatment; rats in the EA group were treated with EA at "Baihui" (GV 20) and left "Zusanli" (ST 36), 30 min per treatment, once a day for 14 successive days; rats in the PGB group were treated with intragastric administration of PGB (100 mg/kg) , once a day for 14 days; rats in the EA + PGB group were treated with EA and PGB treatment, once a day for totally 14 days. The expressions of nestin and stem cell factor (SCF) in thalamic ventroposterolateral nucleus (VPL) were detected by immunohistochemical method.

RESULTSThere were positive cells of nestin in ischemia VPL in the model group, and the number of SCF positive cells was increased compared with that in the normal control group (P<0.05). The number of positive cells of nestin and SCF in ischemia VPL in the EA group, PGB group and the EA + PGB group was increased compared with that in the model group (all P<0.05), and the average gray value of immune positive product was all reduced (all P<0.05). The number of positive cells of nestin and SCF in the EA + PGB group was higher than that in the EA group or the PGB group (all P<0.05).

CONCLUSIONEA combined with PGB can significantly increase the SCF expression in ischemia VPL and promote the proliferation of neural stem cells, which is likely to be one of the nerve regeneration mechanism of acupuncture and medication tor secondary thalamic damage of local cerebral isctemia.

Animals ; Brain Ischemia ; drug therapy ; genetics ; metabolism ; therapy ; Combined Modality Therapy ; Disease Models, Animal ; Drugs, Chinese Herbal ; administration & dosage ; Electroacupuncture ; Gastrodia ; chemistry ; Humans ; Male ; Nestin ; genetics ; metabolism ; Polysaccharides ; administration & dosage ; Rats ; Rats, Sprague-Dawley ; Stem Cell Factor ; genetics ; metabolism ; Thalamic Nuclei ; metabolism

A global quality control method based on high performance liquid chromatography (HPLC) coupled with diode array detection (DAD), single quadrupole mass spectrometry (MS) and time-of-flight mass spectrometry (TOFMS) was developed for simultaneous determination of seven major components (mangiferin, neomangiferin, timosaponin E1, timosaponin E, timosaponin BⅡ, timosaponin BⅢ, and timosaponin AⅢ) and identification of most components in extracts of Rhizoma Anemarrhenae (RA). HPLC analysis was performed on an Agilent SB-C18 column (4.6 mm×150 mm, 5 μm) by gradient elution using acetonitrile and water-acetic acid(100∶0.05, v/v) as the mobile phase. Seven major components in RA were successfully separated. This quantitative method was fully validated in respect of the following performance criteria: linearity, precision, repeatability, stability, accuracy, limits of detection (LOD) and quantification (LOQ). A formula database of known compounds in RA was established, against which, most of the reported components in this herbal extract were identified effectively based on the extract masses acquired by TOFMS. This qualitative and quantitative method was successfully used to analyze the components in 10 batches of RA samples collected from different regions in China. This global quality control method, which consisted of HPLC-DAD-MS assay of seven major components and unambiguous identification of nineteen components, is suitable for routine quantification and comprehensive quality control of RA.

Objective:To observe and analyze the effect of peripore cavity size on visual function of macular area before and after surgery for idiopathic macular hole (IMH).Methods:A retrospective clinical study. From July 2020 to February 2021, a total of 25 patients with 25 eyes with monocular IMH (operation group) diagnosed by ophthalmology examination in Department of ophthalmology, Fourth Hospital of Hebei Medical University were included in the study. The control group was contralateral healthy eyes. All subjects were examined by best corrected visual acuity (BCVA), microfield of vision, frequency domain optical coherence tomography (SD-OCT), and OCT angiography (OCTA). The diameter of macular hole was measured by SD-OCT. The cystic morphology of deep capillary plexus (DCP) was detected by en face OCT, and the cystic area was measured by Image J software. MP-3 microperimeter was used to measure central macular retinal light sensitivity (MS) and mean macular retinal light sensitivity (MMS). Central macular retinal light sensitivity (CMS), MMS and cystic cavity MS were measured in the operation group. MMS was measured in the control group. The microperimetry images were superimposed on the DCP layer of OCTA to identify and calculate the average MS within the lumen and compare it with the control group. Standard three incisions were performed in all affected eyes by vitrectomy of the flat part of the ciliary body + stripping of the inner boundary membrane + intraocular sterile air filling. Three months after the operation, the same equipment and methods were used to perform relevant examinations. Paired sample t test was used to compare MS between operation group and control group. Pearson correlation analysis was used to analyze the correlation between capsular area, macular hole diameter before and after operation and MS before and after operation. The correlation between BCVA and capsular area before and after surgery was analyzed by Spearman correlation analysis. Results:In the surgical group, the retinal MS was (4.24±3.07) dB. The MMS of control group was (19.08±6.11) dB. The MS in the surgical group was significantly lower than that in the control group, and the difference was statistically significant ( t=10.832, P<0.01). Before operation, the area of cyst was (1.04±0.55) mm 2, and the diameter of macular hole was (564.80±166.59) μm. CMS and MMS were (2.27±2.29) dB and (9.08±3.65) dB, respectively. The diameter of macular hole ( r=0.50, P=0.010) and BCVA before operation ( r=0.57, P<0.001) were positively correlated with peripore cavity area. Before operation, CMS and MMS were negatively correlated with peripore cavity area ( r=-0.53, -0.47; P=0.010, 0.020). At 3 months after surgery, the capsular area was negatively correlated with CMS and MMS ( r=-0.65,-0.76; P=0.020, 0.030). There was no correlation with BCVA ( r=0.23, P=0.470). Conclusions:Retinal MS is decreased in the peri-capsular area of IMH pore. There is a positive correlation between capsule area, BCVA and macular hole diameter before operation. The capsular area is negatively correlated with CMS and MMS before operation.

OBJECTIVETo study the genetic polymorphisms of methylenetetrahydrofolate reductase (MTHFR) among the Han, Buyi and Miao populations in Guizhou and to provide genetic data for establishment of the genetic polymorphism bank of Guizhou Minorities.

METHODSThe technique of polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) was used to detect the genotype and allele frequencies at two mononucleotide sites (677 and 1298) of MTHFR among the Han population in Libo county, the Buyi population in Libo county and the Miao population in Leishan county.

RESULTSAt the site of 677, the T allele frequencies were found to be 22.8%, 16.1%, 10.6%, for the Han, Buyi, Miao populations respectively. At the site of 1298, the C allele frequencies were 28.9%, 39.1%, 48.7% for the Han, Buyi, Miao populations respectively. The frequencies for the combined heterozygote of 677CT/1298AC were 16.66%, 22.7%, 11.1% for the three populations respectively. Moreover, one case with combined homozygote of 677TT/1298CC was seen in the Miao population.

CONCLUSIONThe polymorphisms of the two mononucleotide sites (677 and 1298) of MTHFR are diverse in different populations. The C allele frequencies at the site of MTHFR 1298 of the Miao population in Leishan county and the Buyi population in Libo county are high, and the C allele frequency in the Miao population is higher than those hitherto reported in literature.

Base Sequence ; China ; Female ; Gene Frequency ; Genotype ; Humans ; Male ; Methylenetetrahydrofolate Reductase (NADPH2) ; genetics ; Polymerase Chain Reaction ; Polymorphism, Genetic ; genetics ; Polymorphism, Restriction Fragment Length ; Sequence Analysis, DNA

BACKGROUNDHuman cytomegalovirus (HCMV) infection is an important infectious agent that results in neonatal disease and congenital deformity. HCMV infection may affect in many organs. The different symptoms and tissue tropism of HCMV infection perhaps resulted from the genetic polymorphism of HCMV. HCMV UL144 open reading frames encode a homologue of the tumor necrosis factor receptor. It seems important to study the strain-specific variability of UL144 sequence in low-passage clinical isolates and to discuss if the variability related to the clinical HCMV infection.

METHODSHCMV-UL144 gene was amplified by PCR assay in 65 low-passage clinical isolates and urine from 7 healthy children who were HCMV-DNA positive by quantitative PCR. All the positive PCR products were analyzed by Heteroduplex mobility assay and single-stranded conformation polymorphism (HMA-SSCP) and 32 of them were sequenced.

RESULTSFifty-five isolates and 5 urine specimens were HCMV-UL144 positive by PCR. Sequencing and HMA-SSCP analysis showed that significant strain-specific variability was present in the UL144 ORFs. Comparing UL144 sequences and the corresponding symptoms showed that genotype 2 did not exist in megacolon isolates. And genotype 1 and 3 were the major types among microcephaly and jaundice isolates respectively.

CONCLUSIONHCMV-UL144 existed in almost all the low passage isolates. HMA-SSCP assay is an easy and effective method to detect the genetype of HCMV-UL144 sequence. The characteristic of sequences in different isolates showed that UL144 gene may play an important role in HCMV infection.

Cytomegalovirus ; classification ; genetics ; isolation & purification ; Cytomegalovirus Infections ; virology ; Genotype ; Humans ; Infant ; Infant, Newborn ; Membrane Glycoproteins ; genetics ; Molecular Sequence Data ; Phylogeny ; Polymerase Chain Reaction ; Polymorphism, Single-Stranded Conformational ; Sequence Analysis, DNA ; Viral Proteins ; genetics

Objective:To evaluate the feasibility of indocyanine green fluorescence imaging technology applied in thyroid surgery to identify parathyroid gland.Methods:From Oct 2021 to May 2022, data of 42 patients undergoing thyroidectomy via gasless unilateral axillary approach in Zhejiang Provincial Hospital of Traditional Chinese Medicine were retrospectively analyzed. Cases using intraoperative fluorescence imaging technology(42 cases) were compared with conventional laparocopic approach.Results:The number of parathyroid glands dissected in the study group 1.57±0.61 was higher than that in the control group 0.56± 0.59 ( t=-5.472, P<0.05). The PTH value of the study group was (2.88±1.23)pmol/L on the first day after operation, which was higher than that of the control group (2.16±0.10)pmol/L ( t=-1.844, P<0.05). The blood parathyroid hormone value on the third day(3.22±1.31)pmol/L was higher than that of the control group (2.55±0.81) pmol/L ( t=-2.041, P<0.05). There were 2 cases of hypoparathyroidism in the study group, less than 5 cases in the control group, but there was no significant difference between the two groups( χ2=0.942, P>0.05). There was 1 case of hypocalcemia in the study group and 3 cases in the control group ( χ2=0.731, P>0.05). Conclusion:Using indocyanine green fluorescence imaging technology to identify parathyroid gland is feasible, simple, fast, safe and effective.