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Differences in the composition of the gut microbial community have been associated with diseases such as obesity, Crohn's disease, ulcerative colitis and colorectal cancer (CRC). We used 454 titanium pyrosequencing of the V1-V2 region of the 16S rRNA gene to characterize adherent bacterial communities in mucosal biopsy samples from 33 subjects with adenomas and 38 subjects without adenomas (controls). Biopsy samples from subjects with adenomas had greater numbers of bacteria from 87 taxa than controls; only 5 taxa were more abundant in control samples. The magnitude of the differences in the distal gut microbiota between patients with adenomas and controls was more pronounced than that of any other clinical parameters including obesity, diet or family history of CRC. This suggests that sequence analysis of the microbiota could be used to identify patients at risk for developing adenomas.
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http://dx.doi.org/10.1038/ismej.2012.43 | DOI Listing |
Cancer Epidemiol Biomarkers Prev
September 2025
Brigham and Women's Hospital, Boston, MA, United States.
Background: Colorectal cancer (CRC) risk models routinely adjust for endoscopic screening because of a) possible confounding with other risk factors and b) possible alteration of natural history of the disease due to adenoma detection and removal.
Methods: In this study, we defined a subject as screen-covered (SC) if a colonoscopy was performed in the past 10 years, and not screen-covered (NSC) otherwise. We created CRC risk models separately for SC and NSC subjects (HRSC, HRNSC) and then obtained a screening-coverage adjusted HR estimate (HRfull) based on a weighted average of ln(HRSC) and ln(HRNSC) with weight equal to the proportion of SC person-time in the NHS population.
Background The accurate preoperative localization of parathyroid adenomas is crucial for minimally invasive parathyroidectomy (MIP) in primary hyperparathyroidism (PHPT). This study assessed the diagnostic performance of four-dimensional computed tomography (4D CT) in detecting parathyroid adenomas, compared with ultrasound (USG) and technetium methoxy isobutyl isonitrile single photon emission computed tomography (99mTc-sestamibi SPECT/CT). Methods We retrospectively analyzed 53 patients with biochemically confirmed PHPT who underwent all three preoperative imaging modalities, followed by parathyroidectomy from January 2020 to January 2025.
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July 2025
Department of Oral and Maxillofacial Radiology, School of Dentistry, Matsumoto Dental University, Shiojiri, JPN.
Pleomorphic adenoma (PA) is the most common benign salivary gland tumor, typically arising from the parotid gland. PA of the submandibular gland is relatively uncommon and may present diagnostic challenges, particularly when imaging findings raise suspicion of malignancy. A 66-year-old woman presented with a painless mass in the left submandibular region.
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August 2025
Department of Ophthalmology, Hokkaido University, Sapporo, JPN.
Blepharospasm, characterized by abnormal blinking and sensory hypersensitivity such as photophobia and ocular pain, is thought to arise from pathological sensorimotor integration. We report a rare case of a male teenager with a growth hormone-secreting giant pituitary adenoma compressing both the optic chiasm and bilateral trigeminal nerves. Initially, the patient presented with visual disturbances and bitemporal hemianopia, without photophobia or ocular pain.
View Article and Find Full Text PDFPort J Card Thorac Vasc Surg
August 2025
Unidade Local de Saúde Gaia/Espinho,Vila Nova de Gaia, Portugal; Faculdade de Medicina da Universidade do Porto, Porto, Portugal.
Background: Tracheal surgery is a specialized field in which many disciplines work jointly due to the variety of indications and the extended topography. The main indications for surgery include inflammatory (generally post-intubation), congenital or post-traumatic stenoses, benign or malignant neoplasms and tracheal lacerations, whether iatrogenic or traumatic. The purpose of this study is to review the management of one institution's approach to a wide variety of tracheal lesions over the last 10 years.
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