Cells utilize ubiquitin as a posttranslational protein modifier to convey various signals such as proteasomal degradation. The dysfunction of ubiquitylation or following proteasomal degradation can give rise to the accumulation and aggregation of improperly ubiquitylated proteins, which is known to be a general causation of many neurodegenerative diseases. Thus, the characterization of substrate peptide sequences of E3 ligases is crucial in biological and pharmaceutical sciences.
View Article and Find Full Text PDFThe transition of the sexual mode occurs widely in animal evolution. In nematodes, androdioecy, a sexual polymorphism composed of males and hermaphrodites having the ability to self-fertilize, has evolved independently multiple times. While the modification of noncoding regulatory elements likely contributed to the evolution of hermaphroditism, little is known about these changes.
View Article and Find Full Text PDFObjective: Landmark arteries during endoscopic sinus surgery are currently identified on the basis of anatomy, CT imaging and navigation, and Doppler flowmetry. However, the advantage of intraoperative fluorescence imaging during endoscopic sinus surgery has not been demonstrated. This study aimed to investigate whether Indocyanine Green (ICG) is useful for visualizing landmark arteries during endoscopic sinus and skull base surgery.
View Article and Find Full Text PDFTransposable elements are DNA sequences capable of moving within genomes and significantly influence genomic evolution. The nematode Caenorhabditis inopinata exhibits a much higher transposable element copy number than its sister species, Caenorhabditis elegans. In this study, we identified a novel autonomous transposable element belonging to the hAT superfamily from a spontaneous transposable element-insertion mutant in C.
View Article and Find Full Text PDFWe report a case of a second free jejunal transfer to treat metastasis in the mesenteric lymph node of the first jejunal flap. A 73-year-old man underwent total pharyngolaryngectomy, bilateral neck dissection, and free jejunal transfer for recurrent hypopharyngeal cancer [left pyriform sinus, pT2N0, moderately differentiated squamous cell carcinoma (SCC)] after radiotherapy. Seven years post-surgery, he underwent transoral videolaryngoscopic surgery for oropharyngeal cancer (soft palate, pT1N0, well-differentiated SCC).
View Article and Find Full Text PDFTeleost fish exhibit remarkable sexual plasticity and divergent developmental systems, including sequential hermaphroditism. One of the more fascinating models of sexual plasticity is socially controlled sex change, which is often observed in coral reef fish. The Okinawa rubble goby, is a bi-directional sex-changing fish.
View Article and Find Full Text PDFEur Arch Otorhinolaryngol
September 2023
Objectives: To clarify the indication of neck dissection (ND) for patient with submandibular gland (SMG) cancer.
Methods: A total of 43 patients with SMG cancer were retrospectively analyzed. Forty-one patients underwent ND: Levels I-V in 19 patients, Levels I-III in 18 patients, and Level Ib in 4 patients.
Background: Superselective cisplatin (CDDP) infusion via the external carotid artery system and concomitant radiotherapy (RADPLAT) provides favorable oncological and functional outcomes in patients with maxillary sinus cancer. However, targeted lesions are occasionally fed by the branch of the internal carotid artery.
Methods: In RADPLAT for maxillary sinus cancer partly fed by the ophthalmic artery, the ethmoid arteries were ligated in two patients without medial orbital wall involvement.
One of the most important questions in evolutionary biology is how the spatial distribution of species is limited. Asymmetric gene flow from core populations is suggested to increase the number of poorly adapted immigrants in the populations at the range edge. Genetic load due to migration, i.
View Article and Find Full Text PDFVertical partial laryngectomy is a well-established surgical procedure for early glottic cancers with acceptable functional and oncological outcomes. However, on a long-term basis, aspiration might be a serious problem with aging. Here we presented two cases of refractory aspiration pneumonia after vertical laryngectomy.
View Article and Find Full Text PDFThis paper proposes lossless linear predictive coding based on the directionality of the interference patterns of a hologram. We approached this study from two aspects. First, to determine the directionality of the interference patterns, we performed differential pulse coding modulation (DPCM), segmenting interference patterns into blocks and scanning the pixels in eight directions for each block.
View Article and Find Full Text PDFHarvesting grafts from the anterior iliac bone has been associated with various complications. A 50-year-old woman presented to our department with a chief complaint of right inguinal swelling and pain. Autologous bone grafts had been harvested on two previous occasions from the right anterior iliac crest for use in the reconstruction of multiple facial fractures.
View Article and Find Full Text PDFWe herein describe a case of trauma-related wound infection with a subcutaneous abscess caused by both Enterobacter cancerogenus and Aeromonas hydrophila. An 89-year-old Japanese man was admitted to our hospital because of an injury that he had suffered in a car accident. The right dorsal region of the foot around the wound was reddish and swelling.
View Article and Find Full Text PDFAs most genes are shared between females and males, DNA methylation is assumed to play a crucial role in sex-biased gene expression. DNA methylation exclusively occurs at CpG dinucleotides, and therefore, we would expect that CpG density around transcription start sites (TSSs) relate to sex-biased gene expression. Here we investigated the relationship between CpG densities around TSSs and the ratio of gene expression levels between sexes in the guppy (Poecilia reticulata), which displays remarkable sexual dimorphisms.
View Article and Find Full Text PDFAcute myocardial infarction (AMI) remains one of the most serious heart diseases and elucidation of its pathogenesis and advances in treatment strategies have been desired. In 2009, to understand the status of AMI in Fukushima Prefecture for improving treatment outcomes, a new AMI registration survey system was conducted throughout the prefecture. A total of 1,556 cases were registered in the initial 2 years from 2009 to 2010.
View Article and Find Full Text PDFWe herein report the case of a 61-year-old woman with dilated phase of hypertrophic cardiomyopathy (D-HCM) who had been diagnosed with HCM 17 years previously. On admission, her left ventricle (LV) had marked dilation, dyssynchrony with diffuse severe hypokinesis, and ventricular tachycardia. She had two mutations in the cardiac myosin binding protein-C gene, which were suspected to be the causes of the D-HCM.
View Article and Find Full Text PDFPurpose: We previously demonstrated that hepatic ischemia and reperfusion (I/R) injury increased liver metastasis and cancer growth of RCN-H4 cells. Using a rat model of hepatic I/R-induced liver metastasis, we investigated the metastasis-suppressing effect of polysaccharide-K (PSK), a biological response modifier composed of protein-bound polysaccharide.
Methods: Fischer rats underwent 60 min of 70% partial hepatic ischemia.
Surg Infect (Larchmt)
December 2010
Background: Superficial surgical site infection (SSI) can be caused by bacterial invasion during surgery. We investigated whether bacteria are found at the wound margin during surgery and whether a wound protector (WP; Alexis® Wound Retractor; Applied Medical, Rancho Santa Margarita, CA) contributes to preventing invasion of the incision margin.
Methods: We studied 272 patients who underwent gastrointestinal surgery (115 gastric, 157 colorectal, including emergency operations) between October 2005 and July 2007.
Hyperphosphatemia adversely affects the prognosis of patients with chronic renal failure (CRF). We synthesized a titanium oxide-like compound (TAP) as a phosphate adsorbent for treatment of hyperphosphatemia in CFR patients. We evaluated the ability of TAP to adsorb inorganic phosphate in vitro and in vivo.
View Article and Find Full Text PDFIn patients with advanced rectal cancer, preoperative chemoradiotherapy is superior to postoperative chemoradiotherapy because of causing less toxicity and achieving higher rates of sphincter preservation and curative resection. We treated a patient who had advanced rectal cancer with preoperative chemotherapy using S-1 and concurrent radiotherapy. S-1 was orally administered at a dose of 100 mg/day during the first cycle (two-week on and one week off).
View Article and Find Full Text PDFAlthough acute myocardial infarction (AMI) is the most serious coronary disease, the background of its onset and the mortality are not fully understood, especially in Japan. From June 1999 to May 2005, we mailed an annual questionnaire to eighteen hospitals in which emergency cardiac catheterization and percutaneous coronary intervention (PCI) were available in the Fukushima area of Japan. A total of 1,590 patients were included.
View Article and Find Full Text PDFBackground: Tracheoarterial fistula (TAF) is an unusual but highly lethal complication of tracheostomy, and successful surgical intervention for TAF has been reported. Few investigations are available for TAF in severe motor and intellectual disability (SMID). The aim of the present paper was to analyzed TAF in SMID to clarify which clinical variables might predict the occurrence of TAF, and adequate management for lifesaving.
View Article and Find Full Text PDFBackground: In liver surgery, the hepatic pedicle often is clamped to reduce blood loss, and later unclamped, representing hepatic ischemia and reperfusion (I/R) with induction of hypoxia. Vascular endothelial growth factor (VEGF) expression reportedly is induced by hypoxia; further, some cancer cells express the VEGF receptor (flt-1, flk-1/KDR). We hypothesized that I/R-induced VEGF expression could enhance growth of microscopic tumor via VEGF receptors on tumor cells, thus promoting liver metastasis in a rat model.
View Article and Find Full Text PDFAlthough inflammatory polyposis is one of the common complications in patients with inflammatory bowel disease, it is rare that each poly grows up to more than 1.5 cm. We describe a case of localized giant inflammatory polyposis of the ileocecum associated with Crohn's disease.
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