Zobrazení zdroje stránky Carrillopotts1967

Transplantation is limited by the need for life-long pharmacological immunosuppression, which carries significant morbidity and mortality. Regulatory T cell (Treg) therapy holds significant promise as a strategy to facilitate immunosuppression minimization. Polyclonal Treg therapy has been assessed in a number of Phase I/II clinical trials in both solid organ and hematopoietic transplantation. Attention is now shifting towards the production of alloantigen-reactive Tregs (arTregs) through co-culture with donor antigen. These allospecific cells harbour potent suppressive function and yet their specificity implies a theoretical reduction in off-target effects. This review will cover the progress in the development of arTregs including their potential application for clinical use in transplantation, the knowledge gained so far from clinical trials of Tregs in transplant patients, and future directions for Treg therapy.Antimicrobial peptides are being explored for use as food preservatives to prevent foodborne diseases. In this study, bioinformatics tools were used to screen potential antimicrobial amino acid sequences from the whey acidic protein (WAP) of large yellow croaker (Larimichthys crocea). A novel antimicrobial peptide, designated as LCWAP, was identified and its antimicrobial effect and mechanism of action on Staphylococcus aureus was explored. The minimal inhibitory concentration (MIC) of LCWAP on S. aureus was 15.6 μg/mL. Transmission electron microscopy and laser confocal microscopy revealed that LCWAP kills bacteria by aggregating on the cell surface, destroying the integrity of bacterial cell membrane and resulting in the leakage of intracellular solutes. Moreover, peptide LCWAP inhibit biofilm formation, at concentrations of 1-1/16 × MIC, with biofilm formation found to decrease by 94.3%-13.7% upon LCWAP treatment. The ability of peptide LCWAP to bind bacteria DNA was revealed using electrophoresis analysis and ultraviolet absorption spectroscopy, with peptide LCWAP/DNA weight ratios of 125/1, and 17.3% decrease in the absorption peak of LCWAP. Furthermore, LCWAP had no cytotoxic effects on normal human hepatocytes, although it had strong inhibitory effect on S. aureus growth in milk.<br /><br /> Oral mucositis caused by radiation therapy is a common problem in cancer patients, especially those with head and neck cancer. Numerous experimental and clinical studies have attempted to find a drug to alleviate oral mucositis. Sumatriptan, is conventionally used to treat migraine attack and cluster headache. Recently, low doses have been shown to have anti-inflammatory properties. In this study we aimed to measure the effect of sumatriptan on experimental radiotherapy-induced oral mucositis.<br /><br /> This study evaluates the use of sumatriptan 0.3 and 1 mg/kg in radiation-induced oral mucositis. In order to induce oral mucositis, six rats from each group received 8-Gy of X-ray in a single session. Likewise, three rats from each group received 26-Gy of X-ray. The latter dose of X-ray was used for inducing severe mucositis and apoptosis evaluation by TUNEL assay, while the first dose was used for histopathological and molecular assessments. On 8th day after irradiation, specimens were collected from their tongues for histology, TUNEL and molecular assessments.<br /><br /> Radiation caused mucosal atrophy, derangement of the tissue and vasodilation. Sumatriptan significantly decreased histopathological score and alleviated mucosal atrophy. As well, there was no evidence of vasodilation in the sumatriptan group. Likewise, sumatriptan decreased the increased level of NF-kB and prevented its activation as well as ERK phosphorylation. In addition, Sumatriptan-treated rats had lower tissue level of TNF-α, reactive oxygen species and fewer apoptotic cells in TUNEL assay.<br /><br /> Based on study results, sumatriptan mitigate radiation-induced oral mucositis by inhibiting NF-kB, ERK and limiting the release of TNF-α, oxidative stress factor and apoptosis.<br /><br />Based on study results, sumatriptan mitigate radiation-induced oral mucositis by inhibiting NF-kB, ERK and limiting the release of TNF-α, oxidative stress factor and apoptosis.<br /><br /> The aim of our study was to investigate the expression of programmed death ligand-1 (PD-L1)/programmed death-1 (PD-1) between oral squamous cell carcinoma (OSCC) patients with and without oral submucous fibrosis (OSF), and its correlation with clinic-pathologic features and its prognostic value.<br /><br /> PD-L1 and PD-1 expression was evaluated by immunohistochemical staining, double immunofluorescent staining and real-time PCR, and the correlation of PD-L1/PD-1 expression with clinical outcome was assessed.<br /><br /> The level of PD-L1 expression was significantly higher in OSCC with OSF than in OSCC without OSF (p = 0.006). Moreover, PD-L1 expression was strongly correlated with lymph node metastasis (p = 0.016), and advanced tumor stage (p = 0.030). Increased PD-L1 expression was positively correlated with the incidence of OSCC with OSF (p = 0.006, p = 0.008, respectively). PD-L1 expression was an independent marker of unfavorable prognosis (p = 0.035, p = 0.048, respectively). High PD-L1 expression had a significantly worse outcome in OSCC patients with OSF (p = 0.014). Double immunofluorescent staining showed that OSCC with OSF were more strongly expressed both PD-L1 and PD-1 than OSCC without OSF. Moreover, the expression of PD-L1 were upregulated in OSCC tissues than normal control (p = 0.0422), and both PD-L1 and PD-1 was significantly higher in OSCC with OSF than OSCC without OSF tissues (p = 0.0043 and, p = 0.0012, respectively).<br /><br /> The present study suggested that PD-L1 may be an unfavorable indicator for prognosis. PD-L1/PD-1 signaling might play an important role in the malignant transformation of OSF, and targeting PD-L1/PD-1 signaling may be a new therapeutic strategy for OSCC, especially in OSCC patients with OSF.<br /><br />The present study suggested that PD-L1 may be an unfavorable indicator for prognosis. PD-L1/PD-1 signaling might play an important role in the malignant transformation of OSF, and targeting PD-L1/PD-1 signaling may be a new therapeutic strategy for OSCC, especially in OSCC patients with OSF.<br /><br /> Juberg-Hayward syndrome (JHS; MIM 216100) is a rare autosomal recessive malformation syndrome, characterized by cleft lip/palate, microcephaly, ptosis, hypoplasia or aplasia of thumbs, short stature, dislocation of radial head, and fusion of humerus and radius leading to elbow restriction. A homozygous mutation in ESCO2 has recently been reported to cause Juberg-Hayward syndrome. Our objective was to investigate the molecular etiology of Juberg-Hayward syndrome in two affected Lisu tribe brothers.<br /><br /> Two patients, the unaffected parents, and two unaffected siblings were studied. Clinical and radiographic examination, whole exome sequencing, Sanger sequencing, Western blot analysis, and chromosome testing were performed.<br /><br /> Two affected brothers had characteristic features of Juberg-Hayward syndrome, except for the absence of microcephaly. The elder brother had bilateral cleft lip and palate, short stature, humeroradial synostosis, and simple partial seizure with secondary generalization. The younger brother had unilateral cleft lip and palate, short stature, and dislocation of radial heads. The homozygous (c.1654C &gt; T; p.Arg552Ter) mutation in ESCO2 was identified in both patients. The other unaffected members of the family were heterozygous for the mutation. The presence of humeroradial synostosis and radial head dislocation in the same family is consistent with both being in the same spectrum of forearm malformations. Chromosome testing of the affected patients showed premature centromere separation. Western blot analysis showed reduced amount of truncated protein.<br /><br /> Our findings confirm that a homozygous mutation in ESCO2 is the underlying cause of Juberg-Hayward syndrome. Microcephaly does not appear to be a consistent feature of the syndrome.<br /><br />Our findings confirm that a homozygous mutation in ESCO2 is the underlying cause of Juberg-Hayward syndrome. Microcephaly does not appear to be a consistent feature of the syndrome.<br /><br /> [https://www.selleckchem.com/products/remdesivir.html Selleck GS-5734] is an uncommon entity. We herein report an extremely rare case of cholecystitis with abdominal wall biloma after percutaneous transhepatic gallbladder aspiration (PTGBA).<br /><br /> A 69-year-old woman was diagnosed with acute cholecystitis, and PTGBA was performed on Day 1. PTGBA was performed a second time because of re-expansion of the gallbladder and an increased CRP level on Day 3. Computed tomography was performed on Day 9 because we suspected recurrence of cholecystitis. #link# It revealed a well-circumscribed fluid collection between the abdominal wall or the diaphragm and the liver. Based on these intraoperative findings, we diagnosed her with cholecystitis with abdominal wall biloma. Cholecystectomy and drainage of the abdominal wall biloma were performed on Day 10. The postoperative course was uneventful, and she was discharged on Day 18.<br /><br /> Early cholecystectomy is the gold-standard treatment for acute cholecystitis, but cholecystectomy is not performed in some cases. PTGBA is much more convenient, quicker, and less costly, but inappropriate aspiration during the second PTGBA session might have spread the infected bile to the abdominal wall through the PTGBA route.<br /><br /> This case represents the first reported case of a biloma within the abdominal wall after PTGBA. To prevent this complication, we should aspirate gallbladder bile sufficiently during PTGBA. link2 In addition, we should consider performing alternative therapy, such as percutaneous transhepatic gallbladder drainage or an operation, when we fail to appropriately aspirate.<br /><br />This case represents the first reported case of a biloma within the abdominal wall after PTGBA. link3 To prevent this complication, we should aspirate gallbladder bile sufficiently during PTGBA. In addition, we should consider performing alternative therapy, such as percutaneous transhepatic gallbladder drainage or an operation, when we fail to appropriately aspirate.<br /><br /> Alveolar echinococcosis is dangerous parasitic zoonose with the large endemic area. This disease has a high prevalence in Kazakhstan.<br /><br /> We report on a 45-year woman suffering from alveolar echinococcosis with a huge cystic mass and difficulty of differential diagnosis. She was hospitalized for surgery with primary diagnosis of hydatid disease. The liver carcinoma was suspected during surgery due to the huge size and structure of the mass. This mass was totally removed. The alveolar echinococcosis was confirmed by histopathological examination.<br /><br /> Essential features of this case are the large size of the lesion with a dense consistency and the germination of blood vessels, which unusual for alveolar echinococcosis. Total resection and Albendazole therapy was successful for patient, she didn't have a relapse during the follow-up examination.<br /><br /> This report may provide new aspects of visualization of alveolar echinococcosis and highlight the necessity for the upgrade of the diagnosis tactic.<br /><br />This report may provide new aspects of visualization of alveolar echinococcosis and highlight the necessity for the upgrade of the diagnosis tactic.