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1.
Journal of Prevention and Treatment for Stomatological Diseases ; (12): 229-236, 2022.
Artículo en Chino | WPRIM | ID: wpr-920526

RESUMEN

@#Alveolar bone is an important anatomic basis for implant-supported denture restoration, and its different degrees of defects determine the choices of bone augmentation surgeries. Therefore, the reconstruction of alveolar bone defects is an important technology in the clinical practice of implant restoration. However, the final reconstructive effect of bone quality, bone quantity and bone morphology is affected by many factors. Clinicians need to master the standardized diagnosis and treatment principles and methods to improve the treatment effect and achieve the goal of both aesthetic and functional reconstruction of both jaws. Based on the current clinical experience of domestic experts and the relevant academic guidelines of foreign counterparts, this expert consensus systematically and comprehensively summarized the augmentation strategies of alveolar bone defects from two aspects: the classification of alveolar bone defects and the appropriate selection of bone augmentation surgeries. The following consensus are reached: alveolar bone defects can be divided into five types (Ⅰ-0, Ⅰ-Ⅰ, Ⅱ-0, Ⅱ-Ⅰ and Ⅱ-Ⅱ) according to the relationship between alveolar bone defects and the expected position of dental implants. A typeⅠ-0 bone defect is a bone defect on one side of the alveolar bone that does not exceed 50% of the expected implant length, and there is no obvious defect on the other side; guided bone regeneration with simultaneous implant implantation is preferred. Type Ⅰ-Ⅰ bone defects refer to bone defects on both sides of alveolar bone those do not exceed 50% of the expected implant length; the first choice is autologous bone block onlay grafting for bone increments with staged implant placement or transcrestal sinus floor elevation with simultaneous implant implantation. Type Ⅱ-0 bone defects show that the bone defect on one side of alveolar bone exceeds 50% of the expected implant length, and there’s no obvious defect on the other side; autologous bone block onlay grafting (thickness ≤ 4 mm) or alveolar ridge splitting (thickness > 4 mm) is preferred for bone augmentation with staged implant placement. Type Ⅱ-Ⅰ bone defects indicate that the bone plate defect on one side exceeds 50% of the expected implant length and the bone defect on the other side does not exceed 50% of the expected implant length; autologous bone block onlay grafting or tenting techniques is preferred for bone increments with staged implant implantation. Type Ⅱ-Ⅱ bone defects are bone plates on both sides of alveolar bone those exceed 50% of the expected implant length; guided bone regeneration with rigid mesh or maxillary sinus floor elevation or cortical autologous bone tenting is preferred for bone increments with staged implant implantation. This consensus will provide clinical physicians with appropriate augmentation strategies for alveolar bone defects.

2.
Chinese Journal of Clinical and Experimental Pathology ; (12): 137-142, 2018.
Artículo en Chino | WPRIM | ID: wpr-695071

RESUMEN

Purpose To investigate the histopathological diagnosis and follow-up of gastric mucosal biopsy. Methods A detailed histopathological observation was performed on 5 748 gastroscopic biopsies and 3 288 patients were followed up. Results In 5 748 cases of endoscopy biopsy specimens, acute gastritis was rechecked in 125 cases, of which 112 cases were cured or improved (89.6% ), 10 cases (8.0% ) had little change, and 3 cases (2.4%) were aggravated. There were 2430 cases of chronic atrophic gastritis, in which 1521 cases were cured/improvement (62.6% ), 737 cases (30.3% ) had little change, and 172 cases (7.1% ) were aggravated. In the 71 cases of special type of gastritis, 23 cases were cured or improved, accounting for 32.3%.42 cases were not changed much, accounting for 59.2%, and 6 cases were aggravated (8.5% ). About druginduced gastritis/stomach reexamination in 94 cases, 57 cases were cured/improved, accounting for 60.6%, 34(36.3% ) cases did not change, and 2 cases were aggravated(3.2% ).183 cases of gastric polyp were reviewed, 165 cases(90.2% ) were cured / improved, 13 cases (7.1% ) were not changed and 5 cases (2.7% ) were aggravated. No neoplasia/ nondysplasia was found in 205 cases, 196(95.6% ) cases was cured / improved, no change was seen in 6 cases (2.9% ) and aggravation was seen in 3 cases(1.5%). Indefinite neoplasia/ dysplasia was reexamined in 24 cases, 2 cases (8.3%) were cured/improved, no change was seen in 13 cases (54.2% ), and aggravation was seen in 9 cases(37.5%).156 cases of intraepithelial neoplasia were retrospectively reviewed, in which138 (88.5% ) cases were cured or improved, 4(2.6% ) cases showed no change, and 13(8.3%) cases were aggravated. Conclusion It is of great significance to improve the early diagnosis rate, reduce missed diagnosis rate and misdiagnosis rate of gastric cancer by establishing 11 pathological changes and accompanying lesions.

3.
China Journal of Chinese Materia Medica ; (24): 4180-4186, 2017.
Artículo en Chino | WPRIM | ID: wpr-335724

RESUMEN

To investigate the effects of Fritillariae Cirrhosae Bulbus on airway remodeling and matrix metalloproteinase-2(MMP-2), matrix metalloproteinase-9(MMP-9), tissue inhibitor-1 of metalloproteinase(TIMP-1) of a murine asthma model, and explore its mechanism in treatment of asthma. BALB/C murines were randomly divided into the normal group, model group, high dose group, low dose group, and positive control group. Except for the normal group, all the other groups received ovalbumin(OVA) to establish murine asthma model. After successful modeling, the murines in high dose group and low dose group were orally administered with Fritillariae Cirrhosae Bulbus powder at the dose of 18.0 mg•kg⁻¹ and 9.0 mg•kg⁻¹, respectively; the murines in positive control group were injected intraperitoneally with dexamethasone at the dose of 0.5 mg•kg⁻¹; while the murines in normal group and the model group were orally administered with the same volume of normal saline. All the drugs were given to murines per day for 28 d. The variations of airway responsiveness, variations of the total cell count and leukocyte differential count in bronchoalveolar lavage fluid(BALF), and the variations of thicknesses of bronchial wall and airway smooth muscle of each group were observed. The levels of MMP-2, MMP-9 and TIMP-1 were measured by ELISA; and the expression levels of MMP-2, MMP-9 and TIMP-1 mRNA were detected by RT-PCR. The results showed that as compared with the normal group, the airway responsiveness, the count of total cells, neutrophils, macrophage, lymphocytes, eosinophils in BALF, and the thicknesses of bronchial wall and airway smooth muscle were increased significantly in the model group(P<0.01); as compared with the model group, the above indicators were decreased significantly in the high dose group, low dose group and positive control group (P<0.05 or P<0.01). As compared with the normal group, the levels and expressions of MMP-2, MMP-9 and TIMP-1 mRNA were increased significantly in the model group(P<0.01); while as compared with the model group, these levels were decreased significantly in the high dose group, low dose group and positive control group(P<0.01). In conclusion, Fritillariae Cirrhosae Bulbus can improve airway remodeling in a murine asthma model, and its mechanisms may be related to down-regulating MMP-2, MMP-9 and TIMP-1 levels.

4.
Chinese Journal of Integrated Traditional and Western Medicine ; (12): 404-407, 2013.
Artículo en Chino | WPRIM | ID: wpr-287545

RESUMEN

Chinese medical syndrome efficacy, as a second efficacy indicator, has been widely used in clinical trials of treating dementia by Chinese herbal medicine. The syndrome assessment tool is a key point in assessing the efficacy of Chinese medical syndrome. The syndrome assessment tool for dementia used nowadays needs to be optimized in content, reliability, and validity. In this paper, the authors reviewed some problems correlated with the design of Chinese medical assessment questionnaire on the basis of Chinese medical theories by combining the common requirements for questionnaire development.


Asunto(s)
Humanos , Enfermedad de Alzheimer , Quimioterapia , Demencia , Quimioterapia , Medicamentos Herbarios Chinos , Usos Terapéuticos , Medicina Tradicional China , Métodos , Fitoterapia , Métodos , Resultado del Tratamiento
5.
Braz. j. microbiol ; 42(3): 1213-1219, July-Sept. 2011. ilus, tab
Artículo en Inglés | LILACS | ID: lil-607557

RESUMEN

High mobility group chromosomal protein B1 (HMGB1) and N2 (HMGN2), two members of High mobility group (HMG) family, play important role in inflammation. The purposes of this study were to investigate the expression of HMGB1 and HMGN2 in periodontistis. The expression of HMGB1 and HMGN2 mRNA in gingival tissues and gingival crevicular fluid (GCF) in chronic periodontitis (CP), generalized aggressive periodontitis (G-AgP) patients and healthy subjects was detected by real-time PCR. The protein level of HMGB1 and HMGN2 in peri-implant crevicular fluid (PICF), peri-implant crevicular fluid of peri-implantitis (PI-PICF) and normal patients was determined by Western blotting. Furthermore, IL-1â, IL-6, IL-8, TNF-á and HMGB1 levels in GCF, PI-PICF and healthy-PICF samples from different groups were determined by ELISA. HMGN2 expression was increased in inflamed gingival tissues and GCF from CP and G-ApG groups compared to control group. HMGB1 expression was the highest in the gingival tissues and GCF from CP patients and was accompanied by increased concentrations of IL-1â, IL-6, IL-8 proinflammaory cytokines. To our knowledge, this is the first study reporting that the expression of HMGB1 and HMGN2 was increased in the gingival tissues and GCF in CP and G-AgP and the PICF in PICF. Our data suggest that HMGB1 may be a potential target for the therapy of periodontitis and PI.


Asunto(s)
Humanos , Western Blotting , Cromatina/genética , Líquido del Surco Gingival , Técnicas In Vitro , Nucleosomas/genética , Periodontitis , Ensayo de Inmunoadsorción Enzimática , Pacientes
6.
Chinese Journal of Gastrointestinal Surgery ; (12): 879-881, 2011.
Artículo en Chino | WPRIM | ID: wpr-321216

RESUMEN

<p><b>OBJECTIVE</b>To compare the clinical effect of 3S-type and P-loops digestive reconstruction after total gastrectomy for gastric cancer.</p><p><b>METHODS</b>From February 2005 to February 2009, 85 cases underwent total gastrectomy in The First Affiliated Hospital of Henan University of Science and Technology. Two types of digestive reconstruction were performed with 3S-type jejunum(n=46) and P-loops Roux-en-Y esophagojejunostomy(n=39). The postoperative complications, nutrition index and the quality of life at half a year after surgery were comparatively analyzed.</p><p><b>RESULTS</b>Two types of digestive reconstruction had no statistical differences in operative time, postoperative complications and mortality(P>0.05). Compared with P-loops Roux-en-Y esophagojejunostomy at 6 months after operation, 3S-type jejunum had a lower incidence in dumping syndrome[4.3% (2/46) vs. 10.3% (4/39), P<0.05] and reflux esophagitis [10.8% (5/46) vs. 33.3% (13/39), P<0.05]. 3S-type jejunum was superior to P-loops Roux-en-Y esophagojejunostomy in serum total protein(55.7±3.1 g/L vs 50.3±5.1 g/L, P<0.05), albumin(36.5±3.6 g/L vs. 31.6±4.4 g/L, P<0.05), hemoglobin(120.2±13.4 g/L vs. 110.4±23.0 g/L, P<0.05), and nutritional assessment index(73.2±4.8 vs. 56.0±6.3, P<0.05).</p><p><b>CONCLUSION</b>Reconstruction of stomach with 3S-type jejunum may be an effective way to prevent reflux esophagitis and dumping syndrome, and to improve the nutritional status and the quality of life.</p>


Asunto(s)
Femenino , Humanos , Masculino , Persona de Mediana Edad , Anastomosis en-Y de Roux , Métodos , Anastomosis Quirúrgica , Métodos , Gastrectomía , Métodos , Yeyuno , Cirugía General , Neoplasias Gástricas , Cirugía General
7.
Chinese Medical Journal ; (24): 3025-3031, 2009.
Artículo en Inglés | WPRIM | ID: wpr-265965

RESUMEN

<p><b>BACKGROUND</b>Hepatic ischemia-reperfusion (I/R) injury occurs in many clinical procedures. The molecular mechanisms responsible for hepatic I/R injury however remain unknown. Sphingolipids, in particular ceramide, play a role in stress and death receptor-induced hepatocellular death, contributing to the progression of several liver diseases including liver I/R injury. In order to further define the role of sphingolipids in hepatic I/R, systemic analysis of sphingolipids after reperfusion is necessary.</p><p><b>METHODS</b>We investigated the lipidomic changes of sphingolipids in a rat model of warm hepatic I/R injury, by delayed extraction matrix-assisted laser desorption ionization time-of-flight mass spectrometry (DE MALDI-TOF-MS).</p><p><b>RESULTS</b>The total amounts of ceramide and sphingomyelin and the intensity of most kinds of sphingolipids, mainly sphingomyelin, significantly increased at 1 hour after reperfusion (P < 0.05) and reached peaks at 6 hours after reperfusion (P < 0.01) compared to controls. Six new forms of ceramide and sphingomyelins appeared 6 hours after reperfusion, they were (m/z) 537.8, 555.7, 567.7, 583.8, 683.5 and 731.4 respectively. A ceramide-monohexoside (m/z) 804.4 (CMH(d18:1C22:1+Na)(+)) also increased after reperfusion and correlated with extent of liver injury after reperfursion.</p><p><b>CONCLUSIONS</b>Three main forms of sphingolipids, ceramide, sphingomyelin and ceramide-monohexoside, are related to hepatic I/R injury and provide a new perspective in understanding the mechanisms responsible for hepatic I/R injury.</p>


Asunto(s)
Animales , Masculino , Ratas , Hígado , Metabolismo , Patología , Ratas Sprague-Dawley , Daño por Reperfusión , Metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción , Esfingolípidos , Metabolismo , Factor de Necrosis Tumoral alfa , Genética
8.
Journal of Central South University(Medical Sciences) ; (12): 926-930, 2008.
Artículo en Chino | WPRIM | ID: wpr-814174

RESUMEN

OBJECTIVE@#To compare the behavioral improvement to find the best transplantation approach for treating brain injury through transplanting amniotic-derived mesenchymal stem cells into brain injured rats in different ways.@*METHODS@#Eighty brain injured Wista rats were randomly divided into a control group with brain injury alone (n=20) and a treatment group(n=60) which were further evenly divided into Group A (transplanted through the vena caudalis), Group B (transplanted through the ventriculus cerebri lateralis), and Group C (transplanted through the injured brain area). Each group was transplanted with amniotic-derived esenchymal stem cells, and their therapeutic efficacy would be evaluated through the neurological severity score (NSS).@*RESULTS@#Compared with other groups, the behaviors of Group C had markedly improved. There was statistically significant difference in the 2 groups (P0.05).@*CONCLUSION@#Transplanting the amniotic-derived mesenchymal stem cells into the injured brain area may be effective for brain injury in rats.


Asunto(s)
Animales , Femenino , Masculino , Ratas , Amnios , Biología Celular , Lesiones Encefálicas , Terapéutica , Trasplante de Células Madre Mesenquimatosas , Métodos , Células Madre Mesenquimatosas , Biología Celular , Fisiología , Regeneración Nerviosa , Fisiología , Distribución Aleatoria , Ratas Wistar
9.
Chinese Journal of Gastrointestinal Surgery ; (12): 380-382, 2007.
Artículo en Chino | WPRIM | ID: wpr-336439

RESUMEN

<p><b>OBJECTIVE</b>To investigate the expression and clinical significance of KiSS- 1 and E- cadherin in gastric cardia carcinoma and the correlation between the two proteins.</p><p><b>METHODS</b>The expression of KiSS- 1 and E- cadherin in 80 patients with gastric cardia carcinoma and 20 patients with normal gastric cardia epithelium was detected by immunohistochemical technique.</p><p><b>RESULTS</b>The expression of KiSS- 1 was negatively correlated with lymphatic metastasis and clinical stage (P < 0.05), but not correlated with the cancer differentiation (P < 0.05). The expression of E- cadherin was negatively correlated with lymphatic metastasis, clinical stage, and cancer differentiation (P < 0.05). Spearman test showed a positive correlation between KiSS- 1 and E- cadherin expression (r(s)=0.722, P < 0.05).</p><p><b>CONCLUSION</b>KiSS- 1 and E- cadherin may play important roles in inhibiting the invasion and metastasis of gastric cardia carcinoma.</p>


Asunto(s)
Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cadherinas , Metabolismo , Cardias , Patología , Kisspeptinas , Metástasis de la Neoplasia , Neoplasias Gástricas , Metabolismo , Patología , Proteínas Supresoras de Tumor , Metabolismo
10.
Biomedical and Environmental Sciences ; (12): 27-34, 2006.
Artículo en Inglés | WPRIM | ID: wpr-229729

RESUMEN

<p><b>OBJECTIVE</b>To study the effects of deltamethrin on tyrosine hydroxylase in nigrostriatum of male rats.</p><p><b>METHODS</b>Sprague-Dawley rats were daily treated with deltamethrin at 6.25 or 12.5 mg/kg body weight by gavage for 10 days. Then HPLC-fluorescence detection was used to analyze the contents of dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC) and homoranillic acid (HVA) in substantial nigra and striatum. The activities of tyrosine hydroxylase (TH) were also detected by HPLC-fluorescence detection. TH mRNA or TH protein levels were measured by RT-PCR and immunohistochemistry method.</p><p><b>RESULTS</b>The content of DA in striatum was significantly decreased by the treatments, suggesting an inhibition of DA synthesis by deltamethrin. The contents of DA metabolites DOPAC and HVA increased, indicating increased dopamine turnover. Furthermore, deltamethrin significantly decreased the activity, as well as the mRNA and protein levels of TH.</p><p><b>CONCLUSIONS</b>These findings reveal a novel aspect of deltamethrin neurotoxicity and suggest tyrosine hydroxylase as a molecular target of deltamethin on dopamine metabolism in the nigrostriatal pathway.</p>


Asunto(s)
Animales , Masculino , Ratas , Ácido 3,4-Dihidroxifenilacético , Metabolismo , Cuerpo Estriado , Metabolismo , Dopamina , Metabolismo , Regulación Enzimológica de la Expresión Génica , Hominidae , Insecticidas , Toxicidad , Levodopa , Metabolismo , Nitrilos , Toxicidad , Piretrinas , Toxicidad , ARN Mensajero , Metabolismo , Ratas Sprague-Dawley , Sustancia Negra , Metabolismo , Tirosina 3-Monooxigenasa , Genética , Metabolismo
11.
Chinese Journal of Industrial Hygiene and Occupational Diseases ; (12): 368-370, 2004.
Artículo en Chino | WPRIM | ID: wpr-258739

RESUMEN

<p><b>OBJECTIVE</b>To investigate the effects of pyrethroids on nigrostriatal dopaminergic pathways in male rats and its mechanism.</p><p><b>METHODS</b>Different doses of permethrin (PM, 200, 400 mg/kg) and deltamethrin (DM, 6.25, 12.50 mg/kg) in corn oil were administered to rats by gavage once daily for ten days, then the contents of dopamine (DA) and its metabolites, 3, 4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) in the substantial nigra and striatum were analyzed by HPLC-fluorescence detection.</p><p><b>RESULTS</b>The contents of DA in striatum in four administered groups were decreased to a certain extent. DA in 6.25 mg/kg DM group [(6.14 +/- 0.57) microg/g wet weight] was lower than that in control group [(9.46 +/- 1.95) microg/g wet weight], P < 0.05. The turnover rate of DA in 200, 400 mg/kg PM and 6.25, 12.5 mg/kg DM groups increased by 133.33%, 166.67%, 166.67%, 266.67% respectively (P < 0.05 or P < 0.01), however there was no significant difference in DA and DOPAC in substantial nigra between control and administered groups.</p><p><b>CONCLUSION</b>DM may inhibit tyrosine hydroxylase and decrease the level of DA in striatum, and both pyrethroid pesticides may increase the metabolism of dopamine in striatum.</p>


Asunto(s)
Animales , Masculino , Ratas , Ácido 3,4-Dihidroxifenilacético , Metabolismo , Cromatografía Líquida de Alta Presión , Cuerpo Estriado , Metabolismo , Dopamina , Metabolismo , Ácido Homovanílico , Metabolismo , Insecticidas , Farmacología , Nitrilos , Farmacología , Permetrina , Farmacología , Piretrinas , Farmacología , Ratas Sprague-Dawley , Sustancia Negra , Metabolismo
12.
Virologica Sinica ; (4): 78-80, 2001.
Artículo en Chino | WPRIM | ID: wpr-635225

RESUMEN

Based on avian leukosis virus ( ALV) p19 gene terminal nucleotide sequence, a 82 bp double-stranded DNA fragment was chemically synthesized and cloned into the expression vector pGEMEX-1. The sequencing result indicated th at the cloned fragment was a correct version of the one designed both in nucleot ide sequence and in its open reading frame. The recombinant was used to transfor m E.coli BL21 (DE3). The cloned fragment was expressed as a fused protein wi th T7 gene 10 leader peptide and was shown to be 34 kD in size on SDS-PAGE gel when induced with 1 mmol/L IPTG. The expression product was able to bind immunol ogically to rabbit anti-ALV serum in Western-blot assay and is being tested to differentiate exogenous from endogenous ALV.

13.
Journal of Practical Stomatology ; (6)2000.
Artículo en Chino | WPRIM | ID: wpr-541851

RESUMEN

Objective:To improve the method for isolating platelet-rich plasma (PRP). Methods:Whole blood was collected from 8 healthy donors and then PRP was separated by both the tube method and the syringe method respectively. Samples were activated to get serum rich-in growth factors (SRGF).Platelets in the SRGF were counted and the level of TGF-?1 was assayed by enzyme-linked immunosorbent assay (ELISA).Results:The end product of syringe method has both a higher platelet count in PRP (P=0.003) and a higher level of TGF-?1 in SRGF(P=0.041) than that of tube method.Conclusion:The syringe method is an effective method in preparation of PRP.

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