Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 51
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
World J Clin Cases ; 7(20): 3271-3275, 2019 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-31667178

RESUMO

BACKGROUND: A penetrating injury of a hollow viscus is an obvious indication for an exploratory laparotomy, but is not typically an indication for endoscopic treatment. CASE SUMMARY: A 27-year-old man visited the emergency department with a self-inflicted abdominal stab wound. Injuries to the colon and ileum were detected, but an injury to the second portion of the duodenum was missed. On the day following admission to our institution, the patient became hemodynamically unstable with massive hematochezia, although there was no evidence of bleeding in the Levin tube or Jackson-Pratt drain. We thus performed an upper gastrointestinal endoscopy and discovered a missed duodenal injury that was actively bleeding. An endoscopic band ligation was performed for hemostasis and closure of the perforation. The patient was subsequently discharged without any complications. CONCLUSION: A penetrating injury of the duodenum can be overlooked, so careful abdominal exploration is very important. If a missed duodenal injury is suspected, a cautious endoscopic approach may be helpful.

2.
Medicine (Baltimore) ; 98(47): e18072, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31764839

RESUMO

INTRODUCTION: Appendectomy is one of the most common emergency surgical operations. Stump appendicitis is a rare complication after appendectomy and is caused by acute inflammation of the remnant part of the appendix. Because of the low index of suspicion owing to a previous history of appendectomy, the diagnosis of stump appendicitis is often delayed. METHODS: Between January 2008 and December 2017, 6 patients were diagnosed with stump appendicitis with or without perforation at a single institution. They had undergone operative management with laparoscopic approach. The clinical data of these patients were retrospectively analyzed by reviewing the medical records and pathologic reports. RESULTS: Five patients were male, with a mean age of 42.4 years (range 11-77 years). The time interval after initial appendectomy ranged from 2 weeks to 30 years. Three patients underwent laparoscopic completion appendectomy, and the others underwent laparoscopic ileocecectomy. The mean hospital stay was 9 days (range 5-13 days). There were no cases of open conversion. CONCLUSIONS: Stump appendicitis is a rare complication after appendectomy. A laparoscopic procedure can be performed for management of stump appendicitis with or without perforation.


Assuntos
Apendicectomia/efeitos adversos , Apendicite/etiologia , Apendicite/cirurgia , Laparoscopia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Adolescente , Adulto , Idoso , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
3.
BMC Cancer ; 19(1): 834, 2019 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-31477048

RESUMO

BACKGROUND: Metastasis of gastric cancer commonly manifests as a malignant effusion, which presents an alternative cell source for human epidermal growth factor receptor 2 (HER2) status identification. This study aimed to compare HER2 status in primary gastric adenocarcinoma tumors and corresponding cell blocks prepared from malignant effusions (CB-MEs). METHODS: HER2 status was retrospectively evaluated by immunohistochemistry (IHC) in primary gastric adenocarcinomas and paired pathologically confirmed CB-MEs of 45 patients. Silver in situ hybridization (SISH) was also performed in cases with IHC 2+ for primary gastric adenocarcinomas and above IHC 1+ for CB-MEs. RESULTS: HER2 positivity was observed in 4.4% (2/45) of primary gastric adenocarcinomas and 6.7% (3/45) of CB-MEs. The HER2 concordance rate between primary gastric adenocarcinomas and CB-MEs was 88.9% (40/45) (κ = - 0.056). All five patients with HER2 positivity in the primary tumor or a CB-ME had a negative result in the corresponding paired sample. Of the 15 patients with two or more serially sampled CB-MEs, HER2 expression determined by IHC differed between each CB-ME in six (40%) patients, and all three patients with HER2 positivity in CB-MEs exhibited HER2 positivity in one of the serially sampled CB-MEs. CONCLUSIONS: The HER2 positivity rate was very low in gastric cancer patients with malignant effusions. Our results suggest that HER2 positivity was discordant between the primary gastric adenocarcinoma and corresponding CB-MEs and among serially sampled CB-MEs. The possibility of detecting HER2 positivity can be improved if the primary gastric adenocarcinoma tumor as well as all the available CB-MEs from each patient are analyzed.


Assuntos
Adenocarcinoma/secundário , Líquido Ascítico/patologia , Receptor ErbB-2/metabolismo , Neoplasias Gástricas/fisiopatologia , Adenocarcinoma/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Imuno-Histoquímica , Hibridização In Situ , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Neoplasias Gástricas/metabolismo
4.
J Nanosci Nanotechnol ; 19(12): 7911-7915, 2019 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-31196308

RESUMO

Electrical stimulation therapy is a promising method for treating neurological diseases. This method induces the activity and differentiation of nerve cells by the direct or indirect transmission of an electrical signal through biomedical electrodes. We demonstrated the efficacy of a graphene sheet as a bioelectrode to differentiate neurites from hippocampal neuron, through electrical stimulation. In order to the artificially induce the differentiation of hippocampal neurons, we directly transmitted electrical signals of square pulse through the graphene electrode to directly stimulate neurons cultured onto graphene surface. Compared to cell culture plates, the average length of differentiated neurites increased 111.1% on pristine graphene with electrical stimulation. And the average number of differentiated neurites on a single cell increased to 281.9% on oxygenated graphene with electrical stimulation. Electrical stimulation with graphene electrodes promoted the differentiation of neurites and activated the production of intercellular networks of hippocampal neurons.

5.
Maxillofac Plast Reconstr Surg ; 41(1): 11, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30915317

RESUMO

Background: Botulinum toxin injection on the masticatory muscle induces the osteopenic condition on the ipsilateral condyle. Bisphosphonate suppresses bone resorption and is used to treat osteopenic or osteoporotic condition. This study aimed to evaluate the effect of bisphosphonate administration on prevention of condylar resorption and botulinum toxin A-induced disuse osteopenia in rats. Results: The volume of the condyle and bone volume/tissue volume (BV/TV, %) showed a strong tendency towards statistical significance (p = 0.052 and 0.058). Trabecular thickness (Tb.Th, mm) and trabecular number (Tb.N, 1/mm) were significantly smaller in the Botox group than in the other groups (p < 0.05). The volume of the condyle and BV/TV in the bisphosphonate 100 and bisphosphonate 200 groups showed similar values when compared with the control group. Conclusion: Bisphosphonate administration after botulinum toxin A injection in the masticatory muscles appears to prevent condyle resorption and botulinum toxin-induced disuse osteopenia in rats.

6.
Int J Syst Evol Microbiol ; 69(1): 153-158, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30457514

RESUMO

A Gram-stain-negative, aerobic, non-motile, non-spore-forming, rod-shaped bacterial strain, designated CAU 1304T, was isolated from sea sand. Strain CAU 1304T grew optimally at pH 8.5 and 30 °C and in the presence of 1 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CAU 1304T belonged to the family Rhodobacteraceae, and was most closely related to Roseicitreum antarcticum ZS2-28T (96.54 % similarity) and Rhodobacter veldkampii ATCC 35703T (96.46 %). The major fatty acid was C18 : 1ω7c and the respiratory quinone was Q-10. The polar lipids were composed of phosphatidylglycerol, phosphatidylcholine and an unidentified aminolipid. The DNA G+C content was 55.9 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic analysis, it is proposed that strain CAU 1304T represents a novel species of a new genus of the family Rhodobacteraceae, for which the name Arenibacillus arenosus gen. nov., sp. nov. is proposed. The type strain of Arenibacillus arenosus is CAU 1304T (=KCTC 42827T=NBRC 113022T).


Assuntos
Filogenia , Rhodobacteraceae/classificação , Dióxido de Silício , Técnicas de Tipagem Bacteriana , Composição de Bases , DNA Bacteriano/genética , Ácidos Graxos/química , Oceanos e Mares , Fosfolipídeos/química , RNA Ribossômico 16S/genética , República da Coreia , Rhodobacteraceae/isolamento & purificação , Análise de Sequência de DNA , Ubiquinona/análogos & derivados , Ubiquinona/química
7.
Sensors (Basel) ; 18(11)2018 Nov 19.
Artigo em Inglês | MEDLINE | ID: mdl-30463232

RESUMO

The detection of alpha-fetoprotein (AFP) in plasma is important in the diagnosis of hepatocellular carcinoma (HCC) in humans. We developed a biosensor to detect AFP in HCC patient plasma and in a phosphate buffer saline (PBS) solution using a graphene field-effect transistor (G-FET). The G-FET was functionalized with 1-pyrenebutyric acid N-hydroxysuccinimide ester (PBASE) for immobilization of an anti-AFP antibody. AFP was detected by assessing the shift in the voltage of the Dirac point (ΔVDirac) after binding of AFP to the anti-AFP-immobilized G-FET channel surface. This anti-AFP-immobilized G-FET biosensor was able to detect AFP at a concentration of 0.1 ng mL-1 in PBS, and the detection sensitivity was 16.91 mV. In HCC patient plasma, the biosensor was able to detect AFP at a concentration of 12.9 ng mL-1, with a detection sensitivity of 5.68 mV. The sensitivity (ΔVDirac) depended on the concentration of AFP in either PBS or HCC patient plasma. These data suggest that G-FET biosensors could have practical applications in diagnostics.


Assuntos
Carcinoma Hepatocelular/diagnóstico , Técnicas Eletroquímicas/métodos , Grafite/química , Neoplasias Hepáticas/diagnóstico , Transistores Eletrônicos , alfa-Fetoproteínas/análise , Biomarcadores Tumorais/sangue , Técnicas Eletroquímicas/instrumentação , Humanos , Imunoensaio
8.
J Gastric Cancer ; 18(3): 305-312, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30276007

RESUMO

We report a rare case of long-term survival in a patient who received local therapy and salvage chemotherapy for recurrent metastases, along with a literature review. A 65-year-old male patient underwent subtotal gastrectomy for advanced gastric adenocarcinoma. Six months after gastrectomy, 2 metastatic intra-abdominal lymph node enlargements were detected, which were treated with radiotherapy. At 55 months after gastrectomy, an abdominal wall mass was detected, which was treated by surgical resection. The patient received 5-fluorouracil/leucovorin/irinotecan chemotherapy for 27 months before and after radiotherapy and docetaxel chemotherapy for 6 months after surgical resection of the abdominal wall metastasis. At the last visit, 7.8 years since the initial resection of the primary gastric cancer and 6.2 years since detection of the first metastases, the patient was disease-free and required no further chemotherapy. This case suggests that repeated local therapy offers potential for long-term survival in a carefully selected subset of patients with recurrent metastases.

9.
J Biomed Res ; 32(4): 257-263, 2018 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-30008463

RESUMO

There have been few studies on the association between vitamin D levels and gastric cancer in Asian populations, but no studies have been performed on the interactions between vitamin D intake and polymorphisms in the vitamin D pathway. The effects of vitamin D intake, vitamin D related genetic polymorphisms, and their association with the incidence of gastric cancer were investigated in a hospital case-control study, including 715 pairs of newly diagnosed gastric cancer patients and controls matched for age and sex. Correlations between vitamin D intake and plasma vitamin D concentrations were also assessed in a subset of subjects. No statistically significant difference was observed in the dietary intake of vitamin D between the patients and controls, nor were there any evident associations between vitamin D intake and risk of gastric cancer in multivariate analyses. Vitamin D intake significantly correlated with the circulating 25-hydroxyvitamin D levels, but not with the active form of the vitamin, 1,25-dihydroxyvitamin D. There were no statistically significant interactions between vitamin D intake, and VDR or TXNIP polymorphisms. This study suggests that dietary vitamin D intake is not associated with gastric cancer risk, and the genetic polymorphisms of vitamin D-related genes do not modulate the effect of vitamin D with respect to gastric carcinogenesis.

10.
Medicine (Baltimore) ; 97(13): e0258, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29595684

RESUMO

RATIONALE: Gastric metastasis from invasive lobular breast cancer is relatively rare, commonly presented among multiple metastases, several years after primary diagnosis of breast cancer. Importantly, gastric cancer that is synchronously presented with lobular breast cancer can be misdiagnosed as primary gastric cancer; therefore, accurate differential diagnosis is required. PATIENT CONCERNS: A 39-year-old woman was visited to our hospital because of right breast mass and progressive dyspepsia. DIAGNOSES: Invasive lobular carcinoma of breast was diagnosed on core needle biopsy. Gastroscopy revealed a diffuse scirrhous mass at the prepyloric antrum and diagnosed as poorly differentiated adenocarcinoma on biopsy. Synchronous double primary breast and gastric cancers were considered. Detailed pathological analysis focused on immunohistochemical studies of selected antibodies, including those of estrogen receptors, gross cystic disease fluid protein-15, and caudal-type homeobox transcription factor 2, were studied. As a result, gastric lesion was diagnosed as metastatic gastric cancer originating from breast. INTERVENTIONS: Right breast conserving surgery was performed, and duodenal stent was inserted under endoscopic guidance to relieve the patient's symptoms. Systemic chemotherapy with combined administration of paclitaxel and trastuzumab was initiated. OUTCOMES: Forty-one months after the diagnosis, the patient is still undergoing the same therapy. No recurrent lesion has been identified in the breast and evidence of a partial remission of gastric wall thickening has been observed on follow-up studies without new metastatic lesions. LESSONS: Clinical suspicion, repeat endoscopic biopsy, and detailed histological analysis, including immunohistochemistry, are necessary for diagnosis of metastatic gastric cancer from the breast.


Assuntos
Neoplasias da Mama/patologia , Carcinoma Lobular/patologia , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/secundário , Adulto , Neoplasias da Mama/terapia , Diagnóstico Diferencial , Feminino , Humanos
11.
World J Gastroenterol ; 24(1): 150-156, 2018 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-29358891

RESUMO

Bone metastasis is a rare event in patients with gastric cancer, but pathologic fracture, paralysis, pain and hematological disorders associated with the bone metastasis may influence the quality of life. We report herein the case of a 53-year-old man who presented with primary remnant gastric cancer with bone metastasis. The patient requested further investigations after detection of a metastatic lesion in the 2nd lumbar vertebra during evaluation for back pain that had persisted for 3 mo. No other metastatic lesions were detected. He underwent total gastrectomy and palliative metastasectomy to aid in reduction of symptoms, and he received combination chemotherapy with tegafur (S-1) and cisplatin. The patient survived for about 60 mo after surgery. Currently, there is no treatment guideline for gastric cancer with bone metastasis, and we believe that gastrectomy plus metastasectomy may be an effective therapeutic option for improving quality of life and survival in patients with resectable primary gastric cancer and bone metastasis.


Assuntos
Gastrectomia , Vértebras Lombares/cirurgia , Metastasectomia/métodos , Osteotomia , Neoplasias da Coluna Vertebral/cirurgia , Neoplasias Gástricas/cirurgia , Quimioterapia Adjuvante , Evolução Fatal , Gastroscopia , Humanos , Vértebras Lombares/patologia , Imagem por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neoplasias da Coluna Vertebral/secundário , Neoplasias Gástricas/patologia , Fatores de Tempo , Resultado do Tratamento
12.
J Vasc Surg ; 67(6): 1769-1777, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29157680

RESUMO

OBJECTIVE: Buerger disease is a rare inflammatory vasculopathy presenting with severe claudication or critical limb ischemia. In this study, we sought to evaluate the feasibility and clinical outcomes of endovascular therapy for Buerger disease involving arteries in the lower extremities. METHODS: Between January 2006 and May 2016, there were 44 Buerger disease patients (43 men; mean age, 40.4 ± 9.6 years) with 50 target limbs treated by endovascular therapy at the Severance Cardiovascular Hospital. Baseline characteristics as well as both immediate and late clinical outcomes were retrospectively analyzed. RESULTS: The majority (86.4%) of patients presented with critical limb ischemia. A total of 88 target lesions in 50 limbs were treated with endovascular procedures. All limbs showed infrapopliteal artery occlusions, and multilevel diseases involving the iliac or femoropopliteal artery were found in 31 patients (62%). Technical success was achieved in 80% of subjects. We found that a lower serum level of C-reactive protein, specifically the log C-reactive protein value (odds ratio, 0.03; 95% confidence interval [CI], 0.00-0.71; P = .030), was an independent predictor of technical failure. The median follow-up duration was 29 months. Major adverse limb event-free survival and reintervention- and amputation-free survival were 83.3% and 67.9% at 3 years, respectively. In a multivariate Cox proportional hazards analysis, previous endovascular treatment (hazard ratio, 3.70; 95% CI, 1.20-11.31; P = .022) and previous amputation (hazard ratio, 4.68; 95% CI, 1.37-15.96; P = .014) were identified as independent risk factors for reintervention- and amputation-free survival. CONCLUSIONS: In patients with Buerger disease, endovascular treatment achieved technical success in the majority of the cases and was associated with favorable immediate and late clinical outcomes. These findings indicate that endovascular therapy may be considered a first-line treatment option for severe symptomatic patients with Buerger disease.


Assuntos
Procedimentos Endovasculares/métodos , Artéria Femoral/cirurgia , Artéria Ilíaca/cirurgia , Claudicação Intermitente/cirurgia , Extremidade Inferior/irrigação sanguínea , Complicações Pós-Operatórias/epidemiologia , Tromboangiite Obliterante/cirurgia , Adulto , Intervalo Livre de Doença , Feminino , Artéria Femoral/diagnóstico por imagem , Seguimentos , Humanos , Artéria Ilíaca/diagnóstico por imagem , Incidência , Claudicação Intermitente/diagnóstico , Masculino , Razão de Chances , República da Coreia/epidemiologia , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Taxa de Sobrevida/tendências , Tromboangiite Obliterante/complicações , Tromboangiite Obliterante/diagnóstico , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Ultrassonografia Doppler Dupla
13.
Ann Surg Treat Res ; 93(6): 310-315, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29250510

RESUMO

Purpose: Gastric emptying may influence the quality of life of patients who undergo distal gastrectomy. Little is known, however, about gastric emptying after distal gastrectomy. The aim of our study was to investigate gastric emptying patterns after distal gastrectomy. Methods: This gastric-emptying study investigated patients who underwent distal gastrectomy in the 6 months or more before May 2008 to July 2013 at Chungbuk National University Hospital with a study sample of 205 patients. We analyzed patterns of gastric emptying. Results: Delayed gastric emptying was found in 109 of the 205 patients (53.2%). Food stasis was more frequent in a group with delayed gastric emptying. In multivariate analysis, risk factors for gastroparesis were laparoscopic operation (hazard ratio [HR], 2.731; P = 0.008) and duration of less than 24 months after distal gastrectomy (HR, 2.795; P = 0.001). Delayed gastric emptying tended to decrease with duration of the postoperative period. Conclusion: Delayed gastric emptying is common in distal gastrectomy, and is related to laparoscopic operation and duration of the postoperative period. Food stasis was more frequent in a group with delayed gastric emptying.

14.
J Korean Assoc Oral Maxillofac Surg ; 43(5): 336-342, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29142869

RESUMO

Synovial chondromatosis is a rare benign lesion originating from the synovial membrane. It presents as adhesive or non-adhesive intra-articular cartilaginous loose bodies. Although the causes of synovial chondromatosis have not been fully elucidated, inflammation, external injury, or excessive use of joints have been suggested as possible causes. Synovial chondromatosis has been reported to occur most frequently at large joints that bear weights, with a rare occurrence at the temporomandibular joint (TMJ). When synovial chondromatosis develops at TMJ, clinical symptoms, including pain, joint sounds, and mouth opening may common. Moreover, synovial chondromatosis rarely spreads to the mandibular condyle, glenoid cavity, or articular eminence of TMJ. The goal of this study was to discuss the methods of surgery and other possible considerations by reviewing cases of patients who underwent surgery for synovial chondromatosis that extended to the temporal bone.

15.
J Gastric Cancer ; 17(2): 154-161, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28680720

RESUMO

PURPOSE: This study aimed to investigate the correlation between multiple early gastric cancer (MEGC) and multiple primary malignancies during the follow-up of patients with gastrectomy. MATERIALS AND METHODS: The number of primary tumors detected in other organs after gastrectomy for early gastric cancer (EGC) has been increasing because of improved survival and surveillance programs. A total of 3,129 patients underwent radical gastrectomy for treatment of EGC at Samsung Medical Center from January 2000 to December 2005. Of these, 3,057 patients were selected and their medical records were retrospectively analyzed. RESULTS: Among the 3,057 patients, 148 (4.8%) had MEGC, 84.5% were male, 57.4% were over 60 years old, 42.6% had a macroscopic type EGC IIb main lesion, and 68.9% had well-differentiated tumors with a significantly high incidence of MEGC. There were no differences between patients with solitary early gastric cancer (SEGC) and those with MEGC with regard to overall survival or recurrence-free survival, but MEGC was an independent risk factor for metachronous primary malignancies in other organs (P=0.004, hazard ratio [HR]=2.444). CONCLUSIONS: MEGC is not a risk factor for poor prognosis after curative gastrectomy, but it is a risk factor for metachronous primary malignancies in other organs during postoperative follow-up; therefore, careful surveillance is needed.

16.
Medicine (Baltimore) ; 96(50): e9340, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29390405

RESUMO

This study aimed to determine the efficacy of intraoperative ultrasonography-guided wire localization guided breast-conserving surgery (BCS) for nonpalpable breast cancer and compare it to conventional preoperative wire localization (PWL) guided surgery.We retrospectively analyzed the medical charts of 214 consecutive nonpalpable breast cancer patients who underwent BCS using intraoperative ultrasonography-guided wire localization by a surgeon (IUWLS) and PWL, between April 2013 and March 2017. Positive surgical margins, reexcision rates, and resection volumes were investigated.Of the total cohort, 124 patients underwent BCS with IUWLS and 90 patients with PWL. The following did not differ between the IUWLS and PWL groups: positive margin status, re-excision rate, conversion rate, permanent positive margin status, reoperation rate, median optimal resection volume (ORV), median total resection volume (TRV), and median closest tumor-free margin. Rather, median (range) widest tumor-free margin was significantly smaller in the IUWLS group (9 mm [5-12]) than in the PWL group (14 mm [9-20]; P = .003]). Median (range) calculated resection ratio (CRR) was significantly lower in the IUWLS group (1.67 [0.87-9.38]) than in the PWL group (4.83 [1.63-21.04]; P = .02).In nonpalpable breast cancer patients undergoing BCS, IUWLS showed positive resection margins and reexcision rates equivalent to those of the conventional PWL method. Additionally, excision volume and widest tumor-free margin were smaller with IUWLS, confirming that healthy breast tissue is less likely to be resected with this method. Our results suggest that IUWLS offers an excellent alternative to PWL, while avoiding PWL-induced patient discomfort.


Assuntos
Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/cirurgia , Mastectomia Segmentar , Ultrassonografia Mamária/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Cuidados Intraoperatórios , Margens de Excisão , Pessoa de Meia-Idade , Cuidados Pré-Operatórios , Reoperação , Estudos Retrospectivos , Resultado do Tratamento
18.
J Hypertens ; 34(Suppl 1-ISH 2016 Abstract Book): e49, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27753906

RESUMO

OBJECTIVE: Spontaneous oscillation of tone of blood vessel called vasomotion cause vessel to flow blood which is an oscillation of flow into an organ. Microcirculation is sensitive to hypoxic condition and metabolism but mechanism of vasomotion is still poorly understood. DESIGN AND METHOD: Purpose: We studied involvement of metabolism-mediated regulation by intracellular ATP level of vasomotion in human gastric artery. METHODS: Conventional contractile measuring system and Western blot were used. RESULTS: Circular muscle of human gastric artery produced sustained tonic contraction of 1.0 ±â€Š0.19 g by 50 mM high K (n = 36). Pinacidil (10 µM), which is known to activatorof ATP-sensitive K (KATP) channel inhibited vasomotion completely in a reversible manner. Inhibition of vasomotion by activators of KATP channel recovered by glibenclamide. Diazoxide (300 µM), cromakalim (10 µM) nicorandil (10 µM) which is known to activate KATP channel also completely blocked vasomotion in a glibenclamide sensitive manner. Inhibitory effect of these openers of KATP channel on serotonin and norepinephrine-induced contraction were also recoded in a glibenclmide-sensitive manner. In human artery, glucose-free condition which is elated metabolic changes inhibited vasomotion and it was recovered by glibenclamide. Finally, molecular subtypes of KATP channel was defined by Western blot in human artery. CONCLUSIONS: Vasomotion of human gastroepiploic artery was inhibited by activation of specific subtypes of KATP channel and alteration of metabolism.

19.
Cancer Med ; 5(11): 3236-3335, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27726301

RESUMO

Although several studies reported genetic polymorphisms in protein kinase AMP-activated alpha 1 catalytic subunit (PRKAA1) and their associations with gastric cancer risk, few have evaluated associations between Helicobacter pylori infection and PRKAA1 gene-environment interactions. Here, we evaluated the effects of interactions between H. pylori infection and PRKAA1 polymorphisms on gastric cancer risk in Koreans. In this hospital-based case-control study, PRKAA1 genotypes were analyzed and H. pylori infection and CagA status were examined using a serologic method in 846 pairs of gastric cancer patients and controls matched for age and sex. H. pylori seropositivity was associated with a 1.43-fold [95% confidence interval: 1.12-1.81] increase in the risk of gastric cancer, and CagA low-positive titers during H. pylori infection increased the risk by 1.85-fold (95% confidence interval, 1.38-2.48). Significant positive interaction between the PRKAA1 rs13361707 genotype and H. pylori infection was verified on an additive scale [relative excess risk due to interaction, 0.55; 95% confidence interval, 0.05-1.04; P = 0.030], and the gene-environment interaction between PRKAA1 rs13361707 and CagA status was also statistically significant (relative excess risk due to interaction, 0.50; 95% confidence interval, 0.30-0.70; P < 0.001). Our results indicated that H. pylori infection, CagA status, and PRKAA1 polymorphisms were risk factors for gastric cancer in Koreans, and that the combination of two of these factors rather than their independent effects synergistically increased the risk.


Assuntos
Proteínas Quinases Ativadas por AMP/genética , Infecções por Helicobacter/complicações , Helicobacter pylori , Polimorfismo Genético , Neoplasias Gástricas/epidemiologia , Neoplasias Gástricas/etiologia , Idoso , Estudos de Casos e Controles , Feminino , Interação Gene-Ambiente , Predisposição Genética para Doença , Genótipo , Infecções por Helicobacter/microbiologia , Humanos , Masculino , Razão de Chances , República da Coreia/epidemiologia , Fatores de Risco
20.
Biomed Res Int ; 2016: 8432759, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26989693

RESUMO

Diabetes and obesity represent the major health problems and the most age-related metabolic diseases. Protein-tyrosine phosphatase 1B (PTP1B) has emerged as an important regulator of insulin signal transduction and is regarded as a pharmaceutical target for metabolic disorders. To find novel natural materials presenting therapeutic activities against diabetes and obesity, we screened various herb extracts using a chip screening allowing the determination of PTP1B inhibitory effects of the tested compounds using insulin receptor (IR) as the substrate. Cudrania tricuspidata leaves (CTe) had a strong inhibitory effect on PTP1B activity and substantially inhibited fat accumulation in 3T3-L1 cells. CTe was orally administrated to diet-induced obesity (DIO) mice once daily for 3 weeks after which changes in glucose, insulin metabolism, and fat accumulation were examined. Hepatic enzyme markers (aspartate aminotransferase, AST, and alanine aminotransferase, ALT) and total fat mass and triglyceride levels decreased in CTe-treated mice, whereas body weight and total cholesterol concentration slightly decreased. CTe increased the phosphorylation of IRS-1 and Akt in liver tissue. Furthermore, CTe treatment significantly lowered blood glucose levels and improved insulin secretion in DIO mice. Our results strongly suggest that CTe may represent a promising therapeutic substance against diabetes and obesity.


Assuntos
Diabetes Mellitus/tratamento farmacológico , Obesidade/tratamento farmacológico , Extratos Vegetais/administração & dosagem , Proteína Tirosina Fosfatase não Receptora Tipo 1/biossíntese , Células 3T3-L1 , Animais , Diabetes Mellitus/genética , Diabetes Mellitus/patologia , Humanos , Insulina/sangue , Resistência à Insulina/genética , Fígado/efeitos dos fármacos , Fígado/patologia , Camundongos , Camundongos Obesos , Moraceae/química , Obesidade/genética , Obesidade/patologia , Extratos Vegetais/química , Transdução de Sinais/efeitos dos fármacos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA