21 research outputs found
Adenocarcinoma of the caecum metastatic to the bladder: an unusual cause of haematuria
BACKGROUND: Primary malignancies of colorectal origin can metastasise to the bladder. Reports are however extremely rare, particularly from the caecum. CASE REPORT: The report describes the case of a 45-year old male with Duke's B caecal carcinoma treated with a laparoscopically-assisted right hemicolectomy and adjuvant 5-Fluorouracil chemotherapy. Subsequently, a metastatic lesion to the bladder was demonstrated and successfully excised by partial cystectomy. CONCLUSION: In order that optimal therapeutic options can be determined, it is important for clinicians to distinguish between primary disease of the bladder and other causes of haematuria. Various immunohistochemical techniques attempt to differentiate primary adenocarcinoma of the bladder from secondary colorectal adenocarcinoma. Suspicion of metastatic disease must be raised when histologically unusual bladder tumours are identified
The Cytosolic Tail of the Golgi Apyrase Ynd1 Mediates E4orf4-Induced Toxicity in Saccharomyces cerevisiae
The adenovirus E4 open reading frame 4 (E4orf4) protein contributes to regulation of the progression of virus infection. When expressed individually, E4orf4 was shown to induce non-classical transformed cell-specific apoptosis in mammalian cells. At least some of the mechanisms underlying E4orf4-induced toxicity are conserved from yeast to mammals, including the requirement for an interaction of E4orf4 with protein phosphatase 2A (PP2A). A genetic screen in yeast revealed that the Golgi apyrase Ynd1 associates with E4orf4 and contributes to E4orf4-induced toxicity, independently of Ynd1 apyrase activity. Ynd1 and PP2A were shown to contribute additively to E4orf4-induced toxicity in yeast, and to interact genetically and physically. A mammalian orthologue of Ynd1 was shown to bind E4orf4 in mammalian cells, confirming the evolutionary conservation of this interaction. Here, we use mutation analysis to identify the cytosolic tail of Ynd1 as the protein domain required for mediation of the E4orf4 toxic signal and for the interaction with E4orf4. We also show that E4orf4 associates with cellular membranes in yeast and is localized at their cytoplasmic face. However, E4orf4 is membrane-associated even in the absence of Ynd1, suggesting that additional membrane proteins may mediate E4orf4 localization. Based on our results and on a previous report describing a collection of Ynd1 protein partners, we propose that the Ynd1 cytoplasmic tail acts as a scaffold, interacting with a multi-protein complex, whose targeting by E4orf4 leads to cell death
Remnant native vegetation at a lowland site near Kihei, Maui
Western Region, National Park Servic
Comprehension of Pelvic Organ Prolapse and Urinary Incontinence in Southern Appalachian Women
Objectives Despite their growing prevalence, pelvic floor disorders (PFDs) remain undertreated and not well understood by patients, with treatment disparities noted in specific subgroups of women. The goal of the present study was to determine the basic understanding of PFDs of women in the southern Appalachian region of the United States, to determine factors that predict knowledge, and to explore the possible disparities in seeking access to care among women in this region who reported symptoms. Methods A survey of patient knowledge of PFDs, specifically urinary incontinence (UI) and pelvic organ prolapse (POP), was conducted in Johnson City, Tennessee, and involved 305 female patients from this city and the surrounding region. Results Almost half of the participants (43%) reported UI symptoms, with only 25% of these participants reporting treatment. A much smaller percentage (5%) reported POP symptoms, but 44% reported receiving treatment. Overall proficiency for UI knowledge was 54.4%, and 69.5% for POP knowledge. Higher UI knowledge was predicted (P \u3c 0.05) by age younger than 60 years, annual income \u3e50,000, more than a high school education, and presence of POP symptoms. The only factor significantly predicting seeking treatment among women with UI symptoms was marital status. Conclusions Overall knowledge of both UI and POP was reasonably high in this population, suggesting appropriate self-education or education by providers in the region. The women most affected by UI, particularly those older than 60 years, were not well informed, and education by providers does not appear to specifically target women seeking treatment. We must continue to educate and further reduce the gap of knowledge and treatment regarding PFDs in southern Appalachia
Notes on the Rediscovery, Status, and Ecology of the Very Rare Hawaiian Fern Christella boydiae (Thelypteridaceae)
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Development of a clinical pharmacist conducted Helicobacter pylori treatment and eradication program
A case of relapsing secondary bladder adenocarcinoma after right colonic cancer
Background A 71-year-old woman was referred to a surgical oncology clinic after CT raised suspicion for a bladder neoplasm. She had previously undergone right hemicolectomy and received adjuvant chemotherapy for pT3N1MX cancer of the cecum. A retroperitoneal recurrence had been deemed unsuitable for surgical resection, and had instead been treated with chemoradiation therapy. Follow-up CT raised suspicion for a possible bladder neoplasm. Investigations CT, physical examination, urinalysis, cystoscopy with biopsy, pathological analysis and immunohistochemical analysis. Diagnosis Adenocarcinoma of the cecum metastatic to the bladder. Management The patient underwent open bladder resection with total excision of the neoplasm and was administered adjuvant chemotherapy consisting of irinotecan and cetuximab. Subsequent recurrences at the same site were treated with transurethral resection, while chemotherapy was still in progress. At 7 months' follow-up, the patient remained alive, with no evidence of further recurrence
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Patients with sporadic FTLD exhibit similar increases in lysosomal proteins and storage material as patients with FTD due to GRN mutations.
Loss of function progranulin (GRN) mutations are a major autosomal dominant cause of frontotemporal dementia (FTD). Patients with FTD due to GRN mutations (FTD-GRN) develop frontotemporal lobar degeneration with TDP-43 pathology type A (FTLD-TDP type A) and exhibit elevated levels of lysosomal proteins and storage material in frontal cortex, perhaps indicating lysosomal dysfunction as a mechanism of disease. To investigate whether patients with sporadic FTLD exhibit similar signs of lysosomal dysfunction, we compared lysosomal protein levels, transcript levels, and storage material in patients with FTD-GRN or sporadic FTLD-TDP type A. We analyzed samples from frontal cortex, a degenerated brain region, and occipital cortex, a relatively spared brain region. In frontal cortex, patients with sporadic FTLD-TDP type A exhibited similar increases in lysosomal protein levels, transcript levels, and storage material as patients with FTD-GRN. In occipital cortex of both patient groups, most lysosomal measures did not differ from controls. Frontal cortex from a transgenic mouse model of TDP-opathy had similar increases in cathepsin D and lysosomal storage material, showing that TDP-opathy and neurodegeneration can drive these changes independently of progranulin. To investigate these changes in additional FTLD subtypes, we analyzed frontal cortical samples from patients with sporadic FTLD-TDP type C or Pick's disease, an FTLD-tau subtype. All sporadic FTLD groups had similar increases in cathepsin D activity, lysosomal membrane proteins, and storage material as FTD-GRN patients. However, patients with FTLD-TDP type C or Pick's disease did not have similar increases in lysosomal transcripts as patients with FTD-GRN or sporadic FTLD-TDP type A. Based on these data, accumulation of lysosomal proteins and storage material may be a common aspect of end-stage FTLD. However, the unique changes in gene expression in patients with FTD-GRN or sporadic FTLD-TDP type A may indicate distinct underlying lysosomal changes among FTLD subtypes