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1.
Diagnostics (Basel) ; 14(5)2024 Mar 06.
Artículo en Inglés | MEDLINE | ID: mdl-38473037

RESUMEN

Mesenteric phlebosclerosis is a rare ischemic colonic disorder caused by impaired venous drainage. Its prevalence is higher in East Asia, where herbal medicine is widely used. Treatment remains controversial. A 76-year-old woman who had taken Hangeshashinto, an herbal medicine, for 11 years was admitted for endoscopic treatment of high-grade dysplasia in the ascending colon. She had diarrhea and mesenteric phlebosclerosis diagnosed by abdominal computed tomography at age 71. At age 75, small polyps were detected in the ascending colon. A subsequent study revealed an increase in polyp size to 15 mm. Endoscopic mucosal resection failed to remove the lesion. A biopsy showed high-grade dysplasia with possible colon cancer risk. Conservative therapy did not improve mesenteric phlebosclerosis-related diarrhea; therefore, a laparoscopic right hemicolectomy was performed. Intraoperatively, the cecum was adherent to the abdominal wall and the right ovary. The specimen showed high-grade dysplasia in the mucosa and severe submucosal fibrosis. No metastasis was observed. This case shows the link between mesenteric phlebosclerosis and high-grade dysplasia in the ascending colon. Endoscopic mucosal resection was unsuccessful in removing the tumor. Endoscopic submucosal dissection was an alternative, but its safety in mesenteric phlebosclerosis-affected colonic segments remains uncertain. A laparoscopic right hemicolectomy was performed.

2.
Gut Pathog ; 15(1): 59, 2023 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-38037145

RESUMEN

BACKGROUND: Acute cholangitis is a severe, life-threatening infection of the biliary system that requires early diagnosis and treatment. The Tokyo Guidelines recommend a combination of clinical, laboratory, and imaging findings for diagnosis and severity assessment, but there are still challenges in identifying severe cases that need immediate intervention. The microbiota and its derived products have been implicated in the pathogenesis of acute cholangitis. Corisin is a microbiome-derived peptide that induces cell apoptosis, acute tissue injury, and inflammation. This study aimed to evaluate the potential of plasma and bile corisin as a biomarker of acute cholangitis. METHODS: Forty patients with acute cholangitis associated with choledocholithiasis or malignant disease were enrolled. Nine patients without acute cholangitis were used as controls. Corisin was measured by enzyme immunoassays in plasma and bile samples. Patients were classified into severe and non-severe groups. The associations of plasma and bile corisin with the clinical grade of acute cholangitis and other parameters were analyzed by univariate and multivariate regression analysis. RESULTS: Plasma and bile corisin levels were significantly higher in patients with acute cholangitis than in controls. Patients with severe acute cholangitis had significantly higher plasma and bile corisin levels than those with non-severe form of the disease. Bile corisin level was significantly correlated with markers of inflammation, coagulation, fibrinolysis, and renal function. Univariate analysis revealed a significant association of bile corisin but a weak association of plasma corisin with the clinical grade of acute cholangitis. In contrast, multivariate analysis showed a significant relationship between plasma corisin level and the disease clinical grade. The receiver operating characteristic curve analysis showed low sensitivity but high specificity for plasma and bile corisin to detect the severity of acute cholangitis. The plasma and bile corisin sensitivity was increased when serum C-reactive protein level was included in the receiver operating characteristic curve analysis. CONCLUSIONS: Overall, these findings suggest that plasma and bile corisin levels may be useful biomarkers for diagnosing and monitoring acute cholangitis and that corisin may play a role in the pathophysiology of the disease by modulating inflammatory, coagulation and renal pathways.

3.
Allergol Int ; 72(2): 306-315, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36414511

RESUMEN

BACKGROUND: Non-esophageal eosinophilic gastrointestinal disorders (non-EoE EGIDs) are chronic inflammatory disorders with massive infiltration of eosinophils into the gastrointestinal tract. Food elimination diets are potentially effective treatments. But the existing dietary therapies have various weak points. We developed a new regimen to compensate for the shortcomings of the elemental diet and 6-food elimination diet. The new regimen consists of an amino-acid-based formula, potatoes, vegetables, fruits and restricted seasonings. We named it the "Rainbow Elimination Diet (ED)." The aims of this study were to evaluate the tolerability and safety of this diet. METHODS: A retrospective medical record examination was conducted at the National Center for Child Health and Development covering the period from January 2010 through December 2018. The medical records of patients (age 2-17 y) with histologically diagnosed non-EoE EGIDs were reviewed. The tolerability, nutritional intake, symptoms, and blood test findings were evaluated. RESULTS: Nineteen patients were offered several kinds of food-elimination diets. Seven patients (eosinophilic gastritis: 5; gastroenteritis: 1; duodenitis: 1) were treated with Rainbow ED. Six patients were compliant with this diet. The median duration of the diet induction phase was 15 days (range 14-30). All 5 patients who had had symptoms just before the induction phase became symptom-free. The body weight decreased in 5 patients (median -0.6 kg), probably because the serum protein increased, resulting in reduced edema. All 5 patients with hypoproteinemia had elevated serum albumin (median 2.9-3.5 g/dL). The ingested nutritional elements were calculated, and most of them were sufficient, except for fat and selenium. CONCLUSIONS: The Rainbow ED was well-tolerated and safe for pediatric non-EoE EGIDs.


Asunto(s)
Duodenitis , Enteritis , Esofagitis Eosinofílica , Humanos , Esofagitis Eosinofílica/diagnóstico , Dieta de Eliminación , Estudios Retrospectivos , Enteritis/diagnóstico
4.
Microorganisms ; 10(10)2022 Sep 28.
Artículo en Inglés | MEDLINE | ID: mdl-36296204

RESUMEN

Acute cholecystitis is an infectious disease of the gallbladder caused mainly by Escherichia coli, Klebsiella, and Enterococcus species. Streptococcus gallolyticus subsp. pasteurianus, previously known as Streptococcus bovis biotype II/2, rarely causes endocarditis, meningitis, and septicemia, mainly in children. Biliary tract infections by Streptococcus gallolyticus subsp. pasteurianus are extremely rare. There have been no reports of cases in Japan. Here, we describe the first case in Japan of acute calculous cholecystitis caused by Streptococcus gallolyticus subsp. pasteurianus infection. A 63-year-old man was admitted to our hospital with epigastric pain and vomiting. He had moderate tenderness and a full sensation in the epigastrium. Abdominal imaging revealed multiple stones in the gallbladder. After admission, he had a high fever that did not improve with antibiotics. Percutaneous transhepatic gallbladder drainage was performed. The patient underwent open cholecystectomy. During surgery, several small stones in the gallbladder and an abscess were observed at the gallbladder base. Streptococcus gallolyticus subsp. pasteurianus was detected by bacterial culture of the bile juice. The gallstones were bilirubin calcium stones. The endoscopic study showed three adenomas in the colon, but the histopathological examination demonstrated no malignant cells. Although infection by this bacterium may not be rare, this is the first reported case in Japan of acute calculous cholecystitis caused by Streptococcus gallolyticus subsp. pasteurianus infection.

5.
Surg Case Rep ; 8(1): 97, 2022 May 18.
Artículo en Inglés | MEDLINE | ID: mdl-35581487

RESUMEN

BACKGROUND: Ceftriaxone, a third-generation cephalosporin antibiotic with a long plasma half-life, is widely used to treat various infections. The use of ceftriaxone can sometimes induce biliary sludge or stone formation. Although most cases of ceftriaxone-induced pseudolithiasis are asymptomatic or mild and resolve with discontinuation of the drug, we experienced an elderly case of severe acute necrotizing calculous cholecystitis after administration of ceftriaxone. CASE PRESENTATION: A 72-year-old male patient was admitted to our hospital because of acute diverticulitis in ascending colon. Ceftriaxone was administered at a dose of 2 g/day for 6 days. Although he recovered after therapy, he was readmitted about 2 weeks later because of severe pain with rebound tenderness in the right upper quadrant. An abdominal imaging study revealed stones and sludge in the gallbladder that were not observed before starting ceftriaxone therapy. Therefore, antibiotic treatment with flomoxef 2 g/day was indicated. However, on the fifth day of readmission, the peritoneal irritation symptoms in the right upper quadrant worsened, and elevated inflammatory response and liver dysfunction were observed. Cholecystectomy was performed based on these findings. The resected inflamed gallbladder showed acute necrotizing cholecystitis with sand granular gallstones. A comparative analysis of the infrared spectroscopic pattern of the composition of gallstones collected during surgery with that of the ceftriaxone powder revealed that both have very similar infrared spectroscopic patterns. CONCLUSIONS: Ceftriaxone-related pseudolithiasis is generally reversible and mainly observed in children. Here, we report a rare case of ceftriaxone-related acute necrotizing cholecystitis in an elderly patient. We confirmed that the stones in the gallbladder are composed of ceftriaxone. The older age, dehydration, fasting, and long-time bed rest during the administration of high-dose ceftriaxone were the potential risk factors for gallstone formation.

6.
Clin J Gastroenterol ; 13(3): 334-339, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31646430

RESUMEN

A 19-year-old woman with suicidal thoughts consumed 24 anhydrous caffeine tablets and was admitted to our hospital. After being discharged from the hospital, her oral intake remained impaired because of retrosternal pain and she was readmitted. An upper gastrointestinal endoscopy revealed diffuse ulcers throughout the mid-to-lower esophagus; the patient was diagnosed with caffeine-induced esophagitis. She recovered soon after conservative treatment. A follow-up endoscopy performed 1 month after the patient was discharged showed that the ulcers had healed. This case highlights the risk of esophageal injuries after ingesting excessive caffeine tablets, which were sold as dietary supplement without a prescription. Our experience indicates that endoscopic surveillance is advisable to prevent severe complications if a patient presents with esophageal symptoms suggestive of chemical esophagitis.


Asunto(s)
Esofagitis/etiología , Comprimidos/efectos adversos , Cafeína/administración & dosificación , Cafeína/efectos adversos , Esofagitis/diagnóstico por imagen , Esofagoscopía , Esófago/diagnóstico por imagen , Esófago/lesiones , Femenino , Humanos , Tomografía Computarizada por Rayos X , Adulto Joven
7.
Nagoya J Med Sci ; 81(2): 233-239, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31239592

RESUMEN

The efficacy of nab-paclitaxel combined with gemcitabine (GnP) and of chemoradiotherapy (CRT) for unresectable locally advanced pancreatic ductal adenocarcinoma (UR-LA PDAC) is still unclear. We previously conducted a phase I study of CRT using GnP and determined the recommended dose and have now designed a phase II trial to evaluate the efficacy of CRT incorporating GnP for UR-LA PDAC. Eligibility criteria are chemotherapy-naïve patients with UR-LA PDAC as defined by the NCCN guidelines version 2. 2016. Study patients will receive 100 mg/m2 nab-paclitaxel and 800 mg/m2 gemcitabine on Days 1, 8, and 15 per 4-week cycle with concurrent radiation therapy (total dose of 50.4 Gy in 28 fractions of 1.8 Gy per day, 5 days per week). Treatment will be continued until disease progression or surgery, which is to be performed only for patients in whom the disease is well-controlled at 8 months from beginning the protocol treatment. Primary endpoint is 2-year overall survival rate and co-primary endpoint is resection rate. Secondary endpoints are overall survival, progression free survival, time to treatment failure, response rate, disease control rate, early tumor shrinkage, depth of response, reduction of SUV-max on PET-CT, serum tumor markers, relative dose intensity, safety, and Quality of life. This study will show the efficacy and safety of chemoradiotherapy combined with GnP.


Asunto(s)
Albúminas/uso terapéutico , Carcinoma Ductal Pancreático/tratamiento farmacológico , Desoxicitidina/análogos & derivados , Paclitaxel/uso terapéutico , Neoplasias Pancreáticas/tratamiento farmacológico , Adulto , Anciano , Carcinoma Ductal Pancreático/mortalidad , Desoxicitidina/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias Pancreáticas/mortalidad , Tasa de Supervivencia , Resultado del Tratamiento , Adulto Joven , Gemcitabina
8.
Cancer Chemother Pharmacol ; 81(5): 815-821, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29502139

RESUMEN

PURPOSE: For unresectable locally advanced (UR-LA) pancreatic cancer, chemoradiotherapy has been recommended by the NCCN guidelines. We designed a chemoradiotherapy protocol using nab-paclitaxel combined with gemcitabine (GnP) for patients with UR-LA pancreatic cancer. The purpose of this phase I study was to determine a recommended dose (RD) for this novel regimen. METHODS: Patients with UR-LA pancreatic cancer were eligible. The frequency of dose-limiting toxicities (DLTs) was evaluated, and the RD was determined. Patients were classified according to the designated dose levels of chemoradiotherapy using the GnP regimen. After additional 6 cycles of the GnP regimen were administered, surgery was considered if the patients had stable disease and tumor marker levels had normalized. RESULTS: DLT (grade 4 thrombocytopenia) was observed only in 1 of 12 patients, and the RD was set at level 3. Grade 3-4 leukopenia was observed in 9 (75.0%) patients, and neutropenia in 7 (58.3%). The response rate was 41.7%, and the disease control rate was 100%. Conversion surgery was performed in 6 (50%) patients, and curative resection (R0) was performed in all 6 patients (100%). Stratification according to the Evans classification system demonstrated one patient with grade 1b, one with grade 2, two with grade 3, and two with grade 4 disease. CONCLUSION: The RD for weekly administration was 800 mg/m2 for gemcitabine and 100 mg/m2 for nab-paclitaxel with a 50.4 Gy radiation. The GnP regimen at this dosage was promising with 6 of 12 patients proceeding to conversion surgery, and should be evaluated further in a phase II trial.


Asunto(s)
Albúminas/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Desoxicitidina/análogos & derivados , Paclitaxel/administración & dosificación , Neoplasias Pancreáticas/terapia , Adulto , Anciano , Albúminas/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Quimioradioterapia/métodos , Desoxicitidina/administración & dosificación , Desoxicitidina/efectos adversos , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante/métodos , Paclitaxel/efectos adversos , Páncreas/patología , Páncreas/cirugía , Pancreatectomía , Neoplasias Pancreáticas/patología , Resultado del Tratamiento , Gemcitabina
9.
Kyobu Geka ; 70(5): 352-355, 2017 May.
Artículo en Japonés | MEDLINE | ID: mdl-28496081

RESUMEN

We performed salvage surgery after chemoradiotherapy(CRT) in a patient with thymic basaloid cell carcinoma. A 46-year-old man with an abnormal chest shadow on X-ray findings was referred to our hospital. Computed tomography revealed a partially solid tumor along with a multilocular cyst in the anterior mediastinum with mediastinal lymph node swelling infiltrating to the superior vena cava(SVC). Positron emission tomography revealed FDG accumulation (SUVmax 7.94)in the tumor. Pathological findings of a tumor biopsy specimen obtained by thoracoscopy led to a diagnosis of thymic basaloid cell carcinoma. Following CRT (ADOC+RT:60 Gy), a complete resection (R0)with replacement of the SVC was performed. The postoperative course was uneventful, and the patient was alive at 20 months after surgery with metastasis to the cervical lymph nodes and bone.


Asunto(s)
Carcinoma Basocelular/terapia , Terapia Recuperativa , Neoplasias del Timo/terapia , Carcinoma Basocelular/diagnóstico por imagen , Quimioradioterapia , Humanos , Masculino , Persona de Mediana Edad , Neoplasias del Timo/diagnóstico por imagen , Tomografía Computarizada por Rayos X
10.
Kobe J Med Sci ; 63(2): E58-E67, 2017 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-29434176

RESUMEN

Helicobacter pylori, which is involved in the pathogenesis of gastroduodenal disease, produces CagA and VacA as major virulence factors. CagA is classified into East Asian and Western types based on the number and sequences of its Glu-Pro-Ile-Tyr-Ala motifs. The vacA gene has three polymorphic regions: the signal (s), intermediate (i), and middle (m) regions. The lowest gastric cancer mortality rate is seen in Okinawa. On the Japanese mainland (Honshu), most H. pylori produce s1/m1-VacA, which exhibits strong toxicity, and East Asian-type CagA. However, the H. pylori detected in Okinawa produces s1/m2-VacA, which exhibits weak toxicity, or s2/m2-VacA, which is non-toxic, and Western-type CagA. Studies about the i-region of vacA have been performed around the world, but there have been few such studies in Japan. Therefore, the aim of this study was to assess the relationships between the clinical outcomes of H. pylori infections in Okinawa, vacA (especially the i-region genotype), and cagA. H. pylori strains that were collected from patients with gastric cancer or gastric ulcers in Okinawa only produced the i1-type VacA virulence factor. The vacuolating cytotoxin activity of i1-type VacA was stronger than that of i2-type VacA, suggesting that the i-region genotype of vacA is closely associated with vacuolating cytotoxin activity. These results indicate that the i-region genotype of vacA is a useful marker of both H. pylori virulence and the clinical outcomes of H. pylori infections in Okinawa, Japan.


Asunto(s)
Antígenos Bacterianos/genética , Proteínas Bacterianas/genética , Infecciones por Helicobacter/microbiología , Helicobacter pylori/genética , Helicobacter pylori/patogenicidad , Gastritis/microbiología , Genes Bacterianos , Genotipo , Humanos , Japón , Úlcera Péptica/microbiología , Pronóstico , Neoplasias Gástricas/microbiología , Factores de Virulencia/genética
12.
Kyobu Geka ; 69(11): 906-909, 2016 Oct.
Artículo en Japonés | MEDLINE | ID: mdl-27713194

RESUMEN

A 58-year-old male underwent right lung transplantation from a brain-dead donor, after which acute rejection developed that was resistant to steroid pulse therapy. Rabbit-derived anti-thymocyte globulin (rATG) therapy was successful for controlling the rejection. However, following that therapy, the patient was affected by an opportunistic infection and suffered from repeated empyema. It is important to pay attention to immunosuppressive agent levels in blood following treatment, because ATG is a potent immunosuppressive drug and its effects can continue for more than 6 months after administration.


Asunto(s)
Suero Antilinfocítico/uso terapéutico , Rechazo de Injerto/inmunología , Trasplante de Pulmón , Timocitos/inmunología , Enfermedad Aguda , Animales , Humanos , Masculino , Persona de Mediana Edad , Conejos , Tomografía Computarizada por Rayos X
13.
Kyobu Geka ; 69(7): 556-9, 2016 Jul.
Artículo en Japonés | MEDLINE | ID: mdl-27365072

RESUMEN

An anterior mediastinal sarcoma is a very rare type of mediastinal tumor. A 45-year-old female visited our hospital with swelling in the right anterior chest wall. Radiographically, the tumor was found to originate from the thymus and to infiltrate to the major pectoral muscle through the 1st intercostal space. Positron emission tomography revealed fluorodeoxyglucose accumulation at a standardized uptake maximum value of 16.1. Percutaneous needle biopsy showed the pathological findings of sarcoma. The tumor was resected along with the thymus and chest wall tissues including the right hemi-manubrium of the sternum, clavicle head, 1st and second ribs, and major pectoral muscle. After 4 months, tumor relapse occurred at the site of needle biopsy and additional resection was performed. At 10 months after the 2nd surgery, the patient was free from disease. From histologic and immunohistochemical findings, the tumor was diagnosed as spindle cell sarcoma.


Asunto(s)
Carcinoma/diagnóstico por imagen , Carcinoma/cirugía , Neoplasias del Mediastino/diagnóstico por imagen , Neoplasias del Mediastino/cirugía , Carcinoma/patología , Femenino , Humanos , Imagen por Resonancia Magnética , Neoplasias del Mediastino/patología , Persona de Mediana Edad , Tomografía de Emisión de Positrones , Radiografía Torácica , Procedimientos Quirúrgicos Torácicos/métodos , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
14.
Radiol Phys Technol ; 9(2): 270-6, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27260347

RESUMEN

This study measured the dose attenuation of a newly developed vacuum cushion for intensity-modulated radiation therapy (IMRT) of prostate cancer, and verified the effect of dose-correction accuracy in a radiation treatment planning system (RTPS). The new cushion was filled with polystyrene foams inflated 15-fold (Sφ â‰’ 1 mm) to reduce contraction caused by air suction and was compared to normal polystyrene foam inflated to 50-fold (Sφ â‰’ 2 mm). The dose attenuation at several thicknesses of compression bag filled with normal and low-inflation materials was measured using an ionization chamber; and then the calculated RTPS dose was compared to ionization chamber measurements, while the new cushion was virtually included as region of interest in the calculation area. The dose attenuation rate of the normal cushion was 0.010 %/mm (R (2) = 0.9958), compared to 0.031 %/mm (R (2) = 0.9960) in the new cushion. Although the dose attenuation rate of the new cushion was three times that of the normal cushion, the high agreement between calculated dose by RTPS and ionization chamber measurements was within approximately 0.005 %/mm. Thus, the results of the current study indicate that the new cushion may be effective in clinical use for dose calculation accuracy in RTPS.


Asunto(s)
Neoplasias de la Próstata/radioterapia , Dosis de Radiación , Radioterapia de Intensidad Modulada/instrumentación , Vacio , Diseño de Equipo , Humanos , Masculino , Dosificación Radioterapéutica , Planificación de la Radioterapia Asistida por Computador
15.
Mol Cell Biol ; 33(17): 3461-72, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23816881

RESUMEN

Impairment of the ubiquitin-proteasome system (UPS) has been implicated in the pathogenesis of human diseases, including neurodegenerative disorders. Thus, stimulating proteasome activity is a promising strategy to ameliorate these age-related diseases. Here we show that the protein kinase casein kinase 2 (CK2) regulates the transcriptional activity of Nrf1 to control the expression of the proteasome genes and thus the clearance of ubiquitinated proteins. We identify CK2 as an Nrf1-binding protein and find that the knockdown of CK2 enhances the Nrf1-dependent expression of the proteasome subunit genes. Real-time monitoring of proteasome activity reveals that CK2 knockdown alleviates the accumulation of ubiquitinated proteins upon proteasome inhibition. Furthermore, we identify Ser 497 of Nrf1 as the CK2 phosphorylation site and demonstrate that its alanine substitution (S497A) augments the transcriptional activity of Nrf1 and mitigates proteasome dysfunction and the formation of p62-positive juxtanuclear inclusion bodies upon proteasome inhibition. These results indicate that the CK2-mediated phosphorylation of Nrf1 suppresses the proteasome gene expression and activity and thus suggest that the CK2-Nrf1 axis is a potential therapeutic target for diseases associated with UPS impairment.


Asunto(s)
Quinasa de la Caseína II/metabolismo , Factor Nuclear 1 de Respiración/metabolismo , Complejo de la Endopetidasa Proteasomal/genética , Proteínas Ubiquitinadas/metabolismo , Sustitución de Aminoácidos , Animales , Quinasa de la Caseína II/genética , Línea Celular , Regulación de la Expresión Génica , Técnicas de Silenciamiento del Gen , Células HeLa , Humanos , Ratones , Factor Nuclear 1 de Respiración/genética , Fosforilación , Complejo de la Endopetidasa Proteasomal/metabolismo , Unión Proteica , Activación Transcripcional
16.
Biosci Microbiota Food Health ; 32(1): 23-32, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24936359

RESUMEN

In yogurt, the formation of formate by Streptococcus thermophilus stimulates the activity of Lactobacillus delbrueckii subsp. bulgaricus (L. bulgaricus). However, there have been no reports how formic acid acts on the exopolysaccharide (EPS) production of L. bulgaricus. Here, the effect of formate on the EPS production in skim milk by L. bulgaricus OLL1073R-1 was investigated. After incubation for 24 hr with 100 mg/l formate, cell proliferation and lactic acid production were accelerated. The viable and total cell numbers were increased about ten- and four-fold, respectively. The amount of EPS in culture with formate (~116 µg/ml) was also four-fold greater than that of the control (~27 µg/ml). Although elongation of cells was observed at 6 hr of cultivation in both cultures, cells cultivated with formate returned to a normal shape after incubation for 24 hr. The sensitivity to cell wall hydrolase and composition of surface layer proteins, as well as the cell membrane fatty acid composition of L. bulgaricus OLL1073R-1, were not influenced by formate. However, differences were observed in intracellular fatty acid compositions and sensitivity to antibiotics. Cell length and surface damage returned to normal in cultures with formate. These observations suggest that formic acid is necessary for normal cell growth of L. bulgaricus OLL1073R-1 and higher EPS production.

17.
Nihon Shokakibyo Gakkai Zasshi ; 109(11): 1920-6, 2012 Nov.
Artículo en Japonés | MEDLINE | ID: mdl-23132036

RESUMEN

A 58-year-old man was admitted with fever and arthralgia. He had some symptoms suggesting the incomplete type of Behçet disease, and a routine chest X-ray films showed the presence of massive pneumoperitoneum (PP). Exploratory laparotomy revealed no evidence of gastrointestinal perforation or peritonitis. Thus, we initially diagnosed it as idiopathic PP. However a 2×1-mm induration located on the antimesentric side of the ileum 50cm proximal to the ileocecal valve. The wedge-shaped pathological specimen showed ulcer perforation and its restoration. Finally we concluded it to be nonsurgical PP. This case provides significant information on the etiology of idiopathic PP.


Asunto(s)
Síndrome de Behçet/complicaciones , Enfermedades Intestinales/complicaciones , Neumoperitoneo/etiología , Humanos , Enfermedades Intestinales/patología , Masculino , Persona de Mediana Edad , Úlcera/complicaciones , Úlcera/patología
18.
J Radiat Res ; 53(6): 906-15, 2012 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-22843377

RESUMEN

We analyzed the efficacy of definitive chemoradiotherapy (CRT) for patients with hypopharyngeal cancer (HPC). Subjects comprised 97 patients who were treated with definitive CRT from 1990 to 2006. Sixty-one patients (62.9%) with resectable disease who aimed to preserve the larynx received induction chemotherapy (ICT), whereas 36 patients (37.1%) with resectable disease who refused an operation or who had unresectable disease received primary alternating CRT or concurrent CRT (non-ICT). The median dose to the primary lesion was 66 Gy. The median follow-up time was 77 months. The 5-year rates of overall survival (OS), progression-free survival (PFS), local control (LC), and laryngeal preservation were 68.7%, 57.5%, 79.1%, and 70.3%, respectively. The T-stage was a significant prognostic factor in terms of OS, PFS and LC in both univariate and multivariate analyses. The 5-year rates of PFS were 45.4% for the ICT group and 81.9% for the non-ICT group. The difference between these groups was significant with univariate analysis (P = 0.006). Acute toxicity of Grade 3 to 4 was observed in 34 patients (35.1%). Grade 3 dysphagia occurred in 20 patients (20.6%). Twenty-nine (29.8%) of 44 patients with second primary cancer had esophageal cancer. Seventeen of 29 patients had manageable superficial esophageal cancer. The clinical efficacy of definitive CRT for HPC is thought to be promising in terms of not only organ preservation but also disease control. Second primary cancer may have a clinical impact on the outcome for HPC patients, and special care should be taken when screening at follow-up.


Asunto(s)
Quimioradioterapia/mortalidad , Neoplasias Hipofaríngeas/mortalidad , Neoplasias Hipofaríngeas/terapia , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/prevención & control , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Japón/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Medición de Riesgo , Análisis de Supervivencia , Tasa de Supervivencia
19.
Appl Environ Microbiol ; 75(19): 6340-51, 2009 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-19666732

RESUMEN

Gassericin A is a circular bacteriocin produced by Lactobacillus gasseri strain LA39. We found a 33,333-bp plasmid, designated pLgLA39, in this strain. pLgLA39 contained 44 open reading frames, including seven genes related to gassericin A production/immunity (gaa), as well as genes for replication, plasmid maintenance, and conjugative transfer. pLgLA39 was transferred from LA39 to the type strain of L. gasseri (JCM 1131) by filter mating. The transconjugant exhibited >30-fold-higher more resistance to gassericin A and produced antibacterial activity. Lactobacillus reuteri LA6, the producer of reutericin 6, was proved to harbor a plasmid indistinguishable from pLgLA39 and carrying seven genes 100% identical to gaa. This suggests that pLgLA39 might have been transferred naturally between L. gasseri LA39 and L. reuteri LA6. The seven gaa genes of pLgLA39 were cloned into a plasmid vector to construct pGAA. JCM 1131(T) transformed with pGAA expressed antibacterial activity and resistance to gassericin A. pGAA was segregationally more stable than a pGAA derivative plasmid from which gaaA was deleted and even was more stable than the vector. This suggests the occurrence of postsegregational host killing by the gaa genes. pLgLA39 carried a pemIK homolog, and segregational stabilization of a plasmid by the pLgLA39-type pemIK genes was also confirmed. Thus, pLgLA39 was proved to carry the genes for at least two plasmid maintenance mechanisms, i.e., gaa and pemIK. Plasmids containing a repA gene similar to pLgLA39 repA were distributed in several L. gasseri strains.


Asunto(s)
Antibacterianos/biosíntesis , Bacteriocinas/biosíntesis , Conjugación Genética , Farmacorresistencia Bacteriana , Genes Bacterianos , Lactobacillus/genética , Plásmidos , Bacteriocinas/genética , Clonación Molecular , ADN Bacteriano/química , ADN Bacteriano/genética , Orden Génico , Lactobacillus/efectos de los fármacos , Datos de Secuencia Molecular , Sistemas de Lectura Abierta , Análisis de Secuencia de ADN , Homología de Secuencia de Aminoácido , Transformación Bacteriana
20.
Digestion ; 79(4): 235-42, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19401613

RESUMEN

BACKGROUND AND AIM: The relationship between Helicobacter pylori infection and body mass index (BMI) and dyspeptic symptoms is controversial. We investigated the changes in BMI and dyspeptic symptoms after H. pylori eradication among stages of atrophic gastritis classified according to the serum pepsinogen (PG) I/II ratio. METHODS: One hundred and sixty-three H. pylori-positive patients underwent eradication therapy for H. pylori. Serum PG I and II concentrations were measured before treatment, and the PG I/II ratio was classified into three groups: PG I/II ratio <2.0, PG I/II ratio >or=2.0 and <4.0, and PG I/II ratio >or=4.0 were considered to be low, middle, and high, respectively. Their BMI and abdominal symptoms were checked before, 1 and 5 years after treatment, and these changes were investigated among the three groups. RESULTS: The mean BMI changes 1 year after treatment in the low PG I/II ratio group were significantly higher than those in other groups. Most abdominal symptoms in the high PG I/II ratio group were most severe before eradication but improved significantly after eradication. CONCLUSIONS: The effects of H. pylori eradication on BMI and dyspeptic symptoms may be different according to the serum PG I/II ratio before eradication.


Asunto(s)
Dispepsia/tratamiento farmacológico , Gastritis Atrófica/tratamiento farmacológico , Infecciones por Helicobacter/tratamiento farmacológico , Helicobacter pylori , Adulto , Índice de Masa Corporal , Dispepsia/sangre , Dispepsia/microbiología , Femenino , Gastritis Atrófica/sangre , Gastritis Atrófica/microbiología , Infecciones por Helicobacter/sangre , Infecciones por Helicobacter/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Pepsinógenos/sangre
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