Adult ; Female ; Glottis ; Humans ; Laryngeal Mucosa ; transplantation ; Laryngoscopy ; Laryngostenosis ; surgery ; Lasers, Gas ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; methods ; Young Adult

Objective To study the relationship among insulin-like growth factor 1 (IGF-1), insulin-like growth factor binding protein 3(IGFBP-3) and birth weight, length and placental weight and to discuss the endocrine factors which affected fetal growth by assaying levels of IGF-1、IGFBP-3 in umbilical cord serum.Methods The neonates were divided into appropriate for gestational age infant(AGA) and small for gestational age infant(SGA) according to birth weight and gestation. The birth weight, length and placental weight of neonates were measured and at meantime the levels of IGF-1 and IGFBP-3 were assayed by immunoradiometric assay.Results 1.There were 105 neonates, including 79 AGA and 26 SGA. There were significantly statistical differences in birth weight, length and placental weight (all, P

Objective:To study the relationship between CYP4F2 gene polymorphism and coronary heart disease (CHD) in Mongolia patients ,and investigate clinical characteristics of these patients . Methods:All subjects received questionnaire . Gene amplification and genotyping were performed in 234 Mongolian CHD patients (CHD group) and 221 non-CHD pa‐tients (normal control group) using high temperature ligase detection reaction technique .The relationship between Mongo‐lian CHD and CYP4F2 gene polymorphisms of two single nucleotide polymorphism (SNP) sites (rs1558139 ,rs2108622) was analyzed .Results:Compared with normal control group ,there were significant rise in percentages of male (41.18% vs . 67.95% ) ,smoking history (32.13% vs .41.88% ) ,body mass index [BMI ,(21.66 ± 4.53 ) kg/m2 vs .(25.34 ± 5.37 ) kg/m2 ] and triglyceride level [ (1.66 ± 0.90) mmol/L vs .(1.92 ± 1.38) mmol/L] ,and significant reduction in level of high density lipoprotein cholesterol [ (1.18 ± 0.28) mmol/L vs .(1.07 ± 0.29) mmol/L] in CHD group , P<0.05 or <0.01.There were no significant difference in genotype and allele frequencies of rs 1558139 and rs2108622 between two groups . Conclusion:Clinical characteristics of Mongolian CHD patients include high male percentage ,smoking history ,high body mass index and high triglyceride level .CYP4F2 gene polymorphisms of rs1558139 and rs2108622 are not related to coronary heart disease in Mongolian patients .

OBJECTIVE:To study the anti-inflammatory effect of Xinfeng capsule on adjuvant arthritis (AA) in rats. METH-ODS:70 SD rats were randomized into a normal control group(isovolumetric normal saline),a model control group(isovolumet-ric normal saline),a positive control TCM group [Qufeng zhitong capsule 0.4 g(crude drug)/kg],a positive control chemical medi-cine group(Leflunomide tablet 2.1 mg/kg)and groups of low,middle and high doses of Xinfeng capsule,which were respectively marked as groups A,B,C,D,E,F and G. All groups of rats except for Group A were given freund’s complete adjuvant intracu-taneous injection to establishe AA models,and from the 12th day after the inflammation was induced,were given the correspond-ing drug,ig,for 28 consecutive days. The degree of toe swelling and arthritis index were determined and calculated for all groups of rats before and after the administration. The contents of interleukin 1β(IL-1β) and tumor necrosis factor α(TNF-α) in serum and synovial membrane of all groups of rats were determined 24 h after the last administration,and pathomorphological changes of their ankles were observed by light microscope. RESULTS:Compared to group A,group B demonstrated higher degree of toe swelling,arthritis index and contents of IL-1β and TNF-α in serum and synovial membrane,with statistical significance(P<0.01). After the administration,the degree of toe swelling and arthritis index of groups C,D,E,F and G reduced,with statistical signifi-cance(P<0.05). Compared to group B,groups C,D,E,F and G showed lower degree of toe swelling,arthritis index and con-tents of IL-1β and TNF-α in serum and synovial membrane,with statistical significance(P<0.01 or P<0.05). Synovial membrane hyperplasia and inflammatory cell infiltration were noted in the ankle tissue of the rats in group B,and such symptoms were not so serious in groups C,D,F and G. CONCLUSIONS:Xinfeng capsule has anti-inflammatory effect for AA rats by a mechanism which may be related to accelerating synoviocyte apoptosis and inhibiting synovial membrane hyperplasia.

The change of the effective components (liquiritin, glycyrrhizic acid, liquiritigenin, isoliquiritigenin) contents of Glycyrrhizae Radix et Rhizoma (GRR) before and after compatibilities in Sini decoction was studied in this paper. Taking single GRR decoction, GRR-Aconiti Lateralis Radix Praeparata (ALRP) decoction, GRR-Zingiberis Rhizoma (ZR) decoction and Sini decoction as test samples, the contents changing of the four effective components of GRR were measured by HPLC. The results showed that the contents of the four effective components of GRR in the single GRR decoction was higher than that in other samples, and the sequence was single GRR decoction > GRR-ZR decoction > GRR-ALRP decoction > Sini decoction. The contents of liquiritin were 11.18, 9.89, 9.67, 9.17 mg · g(-1); the contents of glycyrrhizic acid were 20.76, 15.58, 11.30, 8.52 mg · g(-1); the contents of liquiritigenin were 0.66, 0.57, 0.45, 0.24 mg · g(-1); the contents of isoliquiritigenin were 0.14, 0.07, 0.03, 0.01 mg · g(-1). Therefore, the effective components of GRR decreased obviously after GRR compatibility with ZR providing scientific basis for GRR relieving the strong nature of ZR. The effective components of GRR decreased sharply after GRR compatibility with ALRP providing scientific support for the material foundation research of GRR reducing the toxicity of ALRP. The effective components of GRR decreased further in Sini decoction indicating that the three medicines in Sini decoction were interactional, which reflecting the scientific connotation of the mutual-restraint/mutual-detoxication, mutual-promotion/mutual-assistance compatibilities in Sini decoction.
Chromatography, High Pressure Liquid ; Drug Compounding ; methods ; Drugs, Chinese Herbal ; analysis ; Glycyrrhiza ; chemistry ; Rhizome ; chemistry

Objective To determine the content and distribution of manganese in rural drinking water in Guangxi province, and to provide scientific evidence for improving drinking water quality and safety. Methods The monitoring results of manganese in rural drinking water in Guangxi from 2014 to 2019 were evaluated according to GB 5749-2006 Sanitary Standards for Drinking Water. Results 47 637 samples were analyzed during 2014-2019.Manganese detection rate was 28.46 %, with the range from 0.05 to 2.71 mg/L, and the qualified rate was 99.46%.The difference of manganese compliance rate in different years was statistically significant (χ²=25.049, P < 0.01), and the rate increased with the increase of year (χ² =17.498, P < 0.01).The compliance rate in dry seasons was higher than that in wet seasons(χ²=5.871, P < 0.05).The qualified rate of manganese was statistically different between the water samples collected from centralized and scattered supply sources (χ²=90.983, P < 0.01).The qualified rate of manganese in large centralized water supply was higher than that in small centralized water supply (χ²=10.294, P < 0.01).The geographic distribution of the qualified manganese rate was in the following order:center>west>north>south>east.(χ²=103.908, P < 0.01). Conclusion There are high and low concentrations of water manganese in rural areas of Guangxi.While most areas showed low manganese in drinking water, some areas dispayed a local point distribution of high water manganese.

Objective To validate the reproducibility of abnormal cerebral metabolic characteristics in PD patients from different medical centers using 18F-FDG PET imaging.Methods A total of 108 subjects who were referred for resting-state brain 18 F-FDG PET imaging were retrospectively reviewed.Thirtythree PD patients (15 males,18 females,age:38-79 years) and 33 age-matched healthy controls (15 males,18 females,age:40-77 years) underwent evaluation at Shanghai Huashan Hospital Affiliated to Fudan University.Seventeen PD patients (10 males,7 females,age:44-74 years) and 17 age-matched healthy controls (6 males,11 females,age:42-67 years) underwent evaluation at the First Affiliated Hospital of Sun Yat-sen University.SPM was used to investigate the cerebral metabolic characteristics of the patients with two-sample t test.Statistically significant voxels were obtained by using familywise error rate (FWE;P＜0.05).Two sets of PD patients with abnormal glucose metabolism of brain regions were obtained and the cerebral metabolic characteristics were compared.Results Regarding the PD patients from Shanghai Huashan Hospital,the features of cerebral glucose metabolism by SPM analysis were demonstrated as follows:increased metabolism was found in the region of pons,cerebellum,thalamus,putamen and pallidum,while decreased metabolism was displayed in the region of parietal lobe and occipital lobe.The increased regions referred to 8 110 voxels and decreased regions referred to 2 810 voxels (P＜0.05).The similar metabolic pattern was found in PD patients from the First Affiliated Hospital of Sun Yat-sen University.The increased metabolism was shown in the regions of pons,cerebellum,thalamus,putamen and pallidum,and referred to 15 573 voxels.The metabolism-decreased regions included parietal lobe,occipital lobe and frontal lobe,and referred to 3 945 voxels (P＜0.05).Conclusions 18F-FDG PET/CT imaging results demonstrate similar metabolic pattern in PD patients from different medical centers,in whom the metabolism-increased regions are found in the pons,cerebellum,thalamus and pallidum and decreased regions were demonstrated in the parietal lobe and occipital lobe.The reproducibility from 18F-FDG PET/CT imaging provides reliable evidence for the multi-center study in the differential diagnosis of PD.

Objective In order to study the epidemiology of Borna disease virus (BDV) in Zunyi region and its surrounding regions in Guizhou province. Methods p24 fragment of BDV fragments in peripheral blood mononuclear cells (PBMC) from 43 patients with viral encephalitis (VE), 9 cases with multiple sclerosis (MS), 7 cases with Guillain-Barre syndrome (GBS), 5 cases with Parkinson disease (PD), 98 healthy donors and 300 goats were examined by quantitative fluorescence nested reverse transcriptase polymerase chain reaction (PCR). Gene sequence and amino acid sequence were analyzed for positive products. Results The positive rate of BDV p24 fragment in PBMC from VE (13.95 %) and MS (22.22 %) were significantly higher than in healthy donors (0 %, P<0.05). The positive rate of BDV p24 fragment in PBMC from goats was 0.67 %, without statistical difference when compared with healthy donors (P>0.05). Guillain-Barre syndrome and Parkinson disease( PD)were tested negative. The sequence of the BDV p24 fragment from the patients with VE was in conformity with that of the MS. Results presented that 3 situs consistency silent mutation when compared with strain V and its homogeneity was 96.51%. 2 situs consistency silent mutation compared with BDV/MDCK and its homogeneity was 97.67%. 2 situs consistency silent mutation when compared with C6BV and its homogeneity was 97.67 %. Sequences of the BDV p24 fragment from the goats presented 3 situs consistency silent mutation when compared with strain V and its homogeneity was 96.51%. 3 situs consistency silent mutation when compared with BDV/MDCK and its homogeneity was 96.51%. 3 situs consistency silent mutation when compared with C6BV and its homogeneity was 96.51%. However, there were no changes of encoding amino acids in all BDV p24 fragments from neuropsychiatric disorders. Conclusion Our data indicated that the BDV infection was presented in patients with VE, MS and goats from Zunyi region and its surrounding regions of Guizhou province. BDV might play a potential role in the development of VE, MS as well as having correlations with animals.

Objective: To observe the effects of electroacupuncture (EA) on the protein and gene expressions of Bax, Caspase-3 and Bcl-2 in cerebral cortex of type 2 diabetic rats with cognitive impairment (CI), and to explore the mechanism of EA in improving the learning and memory abilities. Methods: A total of 100 Sprague-Dawley (SD) rats were divided into a normal group (n=10) and a model group (n=90) by random number table method. Rats in the model group were intraperitoneally injected with a small dose of streptozotocin (STZ) to establish the type 2 diabetic models, after being fed with high-fat and high-sugar diet for 1 month. Twenty CI rats were selected from the 50 successful model rats by the Morris water maze (MWM) test and randomly divided into a model group and an EA group according to the blood glucose level and MWM data (n=10). Rats in the EA group received acupuncture at Zusanli (ST 36), Neiting (ST 44) and Yishu (Extra), of which Zusanli (ST 36) and Neiting (ST 44) were stimulated by EA apparatus, 20 min/time, once a day for 6 d a week and 4 consecutive weeks. The rats in the model and the normal groups were fixed without treatment. After 4-week treatment, the random blood glucose level of the rats was measured; the learning and memory abilities of rats were measured by MWM; terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay was used to detect apoptotic cells; Western blot (WB) and real-time quantitative polymerase chain reaction (RT-qPCR) were used to detect the protein and gene expressions of Bax, Caspase-3 and Bcl-2 in cerebral cortex. Results: After modeling, the random blood glucose level and the escape latency tested by MWM were significantly increased, and the number of crossing the platform tested by the MWM was decreased in the EA and model groups, and were significantly different from those in the normal group (P<0.05 or P<0.01), while the differences between the model group and the EA group were not statistically significant (all P>0.05). After 4-week treatment, the random glucose level and the escape latency tested by MWM were significantly increased (both P<0.05), and the number of crossing the original platform tested by the MWM was significantly reduced (P<0.01), the protein and gene expressions of Bax and Caspase-3 were significantly increased (all P<0.001), the protein and gene expressions of Bcl-2 were significantly reduced (both P<0.001), and the number of neuron apoptosis was significantly increased (P<0.001) in the model group than in the normal group; the random blood glucose level was significantly reduced (P<0.05), the escape latency tested by MWM was significantly shortened (P<0.05), and the number of crossing the original platform tested by MWM was significantly increased (P<0.05), the protein and gene expressions of Bax and Caspase-3 were significantly reduced (all P<0.001), the protein and gene expressions of Bcl-2 were significantly increased (both P<0.001), and the number of neuron apoptosis was significantly reduced (P<0.001) in the EA group than in the model group. Conclusion: EA can improve the learning and memory damages induced by type 2 diabetic model rats with CI; the action mechanism may be achieved via anti-apoptosis.

OBJECTIVETo explore the characters of lung injury induced by tin dusts and to provide the diagnosis evidence of tin pneumoconiosis.

METHODSForty SD rats were randomly divided into four groups: the group exposed to tin dusts from smelting workshop, the group exposed to tin dusts from tin refining workshop, the positive control group exposed to standard quartz dusts and the negative control group exposed to saline. The pathological changes of rat lungs were observed dynamically.

RESULTSIn rats exposed to tin dusts, on the 30th day after exposure to tin dusts, the scattered hoar tip size of the spots in surface and section of the lungs were observed, the scattered focal granulomatous inflammation around the small bronchi and dust particles in lung tissue were observed under microscope; on the 90th day after exposure to tin dusts, the granulomatous inflammation increase, the fibroblasts proliferation, collagen fibers formation and positive VG staining were found. There were significant differences, as compared with positive or negative controls (P < 0.05). These pathological changes were basically the characters of specific pathological changes in early tin pneumoconiosis.

CONCLUSIONNon-ferrous metal tin dusts can induce the specific lung injury (granuloma formation) in lung tissue of rats exposed to tin dusts, which fulfilled the diagnostic criteria of specific pathological changes in early tin pneumoconiosis.

Animals ; Dust ; Lung ; pathology ; Lung Injury ; chemically induced ; diagnosis ; pathology ; Rats ; Rats, Sprague-Dawley ; Tin ; adverse effects