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Mechanisms behind elevated serum levels of plasminogen activator inhibitor-1 in frontotemporal lobar degeneration

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Neural Regeneration Research 2025年第8期20卷 2317-2318页

作者： Francesco Angelucci Jakub Hort Memory Clinic Department of NeurologySecond Faculty of MedicineCharles University and Motol University HospitalPragueCzech Republic International Clinical Research Centre St.Anne’s University HospitalBrnoCzech Republic

Frontotemporal lobar degeneration(FTLD)is a form of progressive dementia characterized by degeneration of the frontal and temporal lobes of the *** pathology involves a series of cognitive,behavioral,and neurological ... 详细信息

关键词： degeneration elevated pathology

Pyrroloquinoline quinone:a potential neuroprotective compound for neurodegenerative diseases targeting metabolism

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Neural Regeneration Research 2025年第1期20卷 41-53页

作者： Alessio Canovai Pete A.Williams Department of Biology University of PisaPisaItaly Department of Clinical Neuroscience Division of Eye and VisionSt.Erik Eye HospitalKarolinska InstitutetStockholmSweden

Pyrroloquinoline quinone is a quinone described as a cofactor for many bacterial dehydrogenases and is reported to exert an effect on metabolism in mammalian cells/*** quinone is present in the diet being available in foodstuffs,conferring the potential of this compound to be supplemented by dietary *** quinone’s nutritional role in mammalian health is supported by the extensive deficits in reproduction,growth,and immunity resulting from the dietary absence of pyrroloquinoline quinone,and as such,pyrroloquinoline quinone has been considered as a“new vitamin.”Although the classification of pyrroloquinoline quinone as a vitamin needs to be properly established,the wide range of benefits for health provided has been reported in many *** this respect,pyrroloquinoline quinone seems to be particularly involved in regulating cell signaling pathways that promote metabolic and mitochondrial processes in many experimental contexts,thus dictating the rationale to consider pyrroloquinoline quinone as a vital compound for mammalian *** the regulation of different metabolic mechanisms,pyrroloquinoline quinone may improve clinical deficits where dysfunctional metabolism and mitochondrial activity contribute to induce cell damage and *** quinone has been demonstrated to have neuroprotective properties in different experimental models of neurodegeneration,although the link between pyrroloquinoline quinone-promoted metabolism and improved neuronal viability in some of such contexts is still to be fully ***,we review the general properties of pyrroloquinoline quinone and its capacity to modulate metabolic and mitochondrial mechanisms in physiological *** addition,we analyze the neuroprotective properties of pyrroloquinoline quinone in different neurodegenerative conditions and consider future perspectives for pyrroloquinoline quinone’s potential in health and disease.

关键词： metabolism mitochondria neurodegenerative disease neuroprotection pyrroloquinoline quinone retinal diseases

Cyclophosphamide-associated enteritis: A rare association with severe enteritis

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World Journal of Gastroenterology 2016年第39期22卷 8844-8848页

作者： Linda S Yang Karla Cameron Tim Papaluca Chamara Basnayake Louise Jackett Penelope McKelvie David Goodman Barbara Demediuk Sally J Bell Alexander J Thompson Department of Gastroenterology St. Vincent’s HospitalFitzroy Department of Pathology St. Vincent’s HospitalFitzroy Department of Nephrology St. Vincent’s HospitalFitzroy

Cyclophosphamide is a potent cytotoxic agent used in many clinical settings. The main risks of cyclophosphamide therapy include hematological disorders, infertility, hemorrhagic cystitis and malignancies. Gastrointestinal side effects reported to date are often non-specific and not severe. We present the first case of a fatal small bowel enteritis and pan-colitis which appears to be associated with cyclophosphamide. We aim to raise the readers' awareness of this significant adverse event to facilitate clinical suspicion and early recognition in potential future cases.

关键词： Enteritis Colitis Cyclophosphamide Small bowel Pan-colitis

Challenges in diagnosis of pancreatic cancer

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World Journal of Gastroenterology 2018年第19期24卷 2047-2060页

作者： Lulu Zhang Santosh Sanagapalli Alina stoita Department of Gastroenterology St. Vincent's Hospital Sydney

Pancreatic cancer is a growing source of cancer related death, yet has poor survival rates which have not improved in the last few decades. Its high mortality rate is attributed to pancreatic cancer biology, difficulty in early diagnosis and the lack of standardised international guidelines in assessing suspicious pancreatic masses. This review aims to provide an update in the current state of play in pancreatic cancer diagnosis and to evaluate the benefits and limitations of available diagnostic technology. The main modalities discussed are imaging with computed tomography, magnetic resonance imaging, endoscopic ultrasound and positron emission tomography and tissue acquisition with fine needle aspiration. We also review the improvements in the techniques used for tissue acquisition and the opportunity for personalised cancer medicine. Screening of high risk individuals, promising biomarkers and common mimickers of pancreatic cancer are also explored, as well as suggestions for future research directions to allow for earlier detection of pancreatic cancer. Timely and accurate diagnosis of pancreatic cancer can lead to improvements in the current poor outcome of this disease.

关键词： Pancreatic cancer Diagnosis Challenges Imaging Biomarkers Screening Endoscopic ultrasound Pitfalls

Cavernous mesenteric lymphangiomatosis mimicking metastasis in a patient with rectal cancer:A case report

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World Journal of Gastroenterology 2009年第31期15卷 3947-3949页

作者： Seong Su Hwang Hyun Joo Choi Soo Youn Park Department of Radiology St.Vincent's HospitalCollege of MedicineThe Catholic University of Korea Department of Pathology St.Vincent's HospitalCollege of MedicineThe Catholic University of Korea

Lymphangioma usually occurs in children and usually involves the skin. Mesenteric lymphangioma is extremely rare in adults. Typically, lymphangioma appears on computed tomography (CT) as a lower attenuation of a cystic mass, however, some cases appear to be a solid mass. We describe the CT and 18F-FDG positron emission tomography/CT appearance in a case of jejunal and mesenteric cavernous lymphangi-omatosis mimicking metastasis in an adult patient with rectal cancer.

关键词： Lymphangioma Lymphangiomatosis Mesentern/ Small intestine Computed tomography 18F-FDG positron emission tomography/computed tomography

Sphincter preservation for distal rectal cancer - a goal worth achieving at all costs?

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World Journal of Gastroenterology 2011年第7期17卷 855-861页

作者： Jürgen Mulsow Des C Winter Institute for Clinical Outcomes Research and Education St. Vincent’s University Hospital

To assess the merits of currently available treatment options in the management of patients with low rectal cancer, a review of the medical literature pertaining to the operative and non-operative management of low rectal cancer was performed, with particular emphasis on sphincter preservation, oncological outcome, functional outcome, morbidity, quality of life, and patient preference. Low anterior resection (AR) is technically feasible in an increasing proportion of patients with low rectal cancer. The cost of sphincter preservation is the risk of morbidity and poor functional outcome in a significant proportion of patients. Transanal and endoscopic surgery are attractive options in selected patients that can provide satisfactory oncological outcomes while avoiding the morbidity and functional sequelae of open total mesorectal excision. In complete responders to neo-adjuvant chemoradiotherapy, a non-operative approach may prove to be an option. Abdominoperineal excision (APE) imposes a permanent stoma and is associated with significant incidence of perineal morbidity but avoids the risk of poor functional outcome following AR. Quality of life following AR and APE is comparable. Given the choice, most patients will choose AR over APE, however patients following APE positively appraise this option. In striving toward sphincter preservation the challenge is not only to achieve the best possible oncological outcome, but also to ensure that patients with low rectal cancer have realistic and accurate expectations of their treatment choice so that the best possible overall outcome can be obtained by each individual.

关键词： Rectal cancer Survival Local recurrence Morbidity Anorectal function Quality of life Patient preference

Effect of trapping vascular endothelial growth factor-A in a murine model of dry eye with inflammatory neovascularization

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International Journal of Ophthalmology(English edition) 2016年第11期9卷 1541-1548页

作者： Jin Woo Kwon Jin A Choi Eun Young Shin Tae Yoon La Dong Hyun Jee Yeon Woong Chung Yang Kyung Cho Department of Ophthalmology St.Vincent's HospitalCollege of Medicinethe Catholic University of Korea Research Institute of Medical Science St.Vincent's Hospitalthe Catholic University of Korea

AIM： To evaluate whether trapping vascular endothelial growth factor-A（VEGF-A） would suppress angiogenesis and inflammation in dry eye corneas in a murine corneal suture ***： We established two groups of animals, one with non-dry eyes and the other with induced dry *** both groups, a corneal suture model was used to induce inflammation and neovascularization. Each of two groups was again divided into three subgroups according to the treatment; subgroup I（aflibercept）,subgroup II（dexamethasone） and subgroup III（phosphate buffered saline, PBS）. Corneas were harvested and immunohistochemical staining was performed to compare the extents of neovascularization and CD11b＋ cell infiltration. Real-time polymerase chain reaction was performed to quantify the expression of inflammatory cytokines and VEGF-A in the ***： Trapping VEGF-A with aflibercept resulted in significantly decreased angiogenesis and inflammation compared with the dexamethasone and PBS treatments in the dry eye corneas（all P 〈0.05）, but with no such effects in non-dry eyes. The anti-inflammatory and antiangiogenic effects of VEGF-A trapping were stronger than those of dexamethasone in both dry eye and non-dry eye corneas（all P 〈0.05）. The levels of RNA expression of VEGF-A, TNF-alpha, and IL-6 in the aflibercept subgroup were significantly decreasedcompared with those in the PBS subgroup in the dry eye ***： Compared with non-dry eye corneas,dry eye corneas have greater amounts of inflammation and neovascularization and also have a more robust response to anti-inflammatory and anti-angiogenic agents after ocular surface surgery. Trapping VEGF-A is effective in decreasing both angiogenesis and inflammation in dry eye corneas after ocular surface surgery.

关键词： dry eye aflibercept neovascularization inflammation dexamethasone

Spontaneous pineal apoplexy in a pineal parenchymal tumor of intermediate differentiation

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Cancer Biology & Medicine 2013年第1期10卷 43-46页

作者： Ching-Chun Wang Jennifer Turner Timothy steel Nepean hospital Kingswood st. vincent's hospital Darlinghurst

Pineal apoplexy is a rare clinical presentation of pineal parenchymal tumors. We report the curative treatment of a case of pineal parenchymal tumor of intermediate differentiation with spontaneous apoplectic hemorrhage. This case is shown through computed tomography and magnetic resonance imaging of the brain, and is confirmed via histopathological studies. Recurrent upward gaze paresis was observed after the stereotactic biopsy. The paresis required an expeditious tumor resection. The mechanism of the pineal apoplectic hemorrhage remains unclear although it has been observed in different pineal region lesions. Clinical and radiological evidence of the cure 5 years post-surgery is available.

关键词： Apoplexy pineal parenchymal tumor obstructive hydrocephalus pineal gland Parinaud's syndrome

Genotypes and viral variants in chronic hepatitis B: A review of epidemiology and clinical relevance

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World Journal of Hepatology 2015年第3期7卷 289-303页

作者： Catherine MN Croagh Paul V Desmond Sally J Bell Department of Gastroenterology St Vincent's Hospital

The Hepatitis B Virus(HBV) has a worldwide distribu-tion and is endemic in many populations. It is constantly evolving and 10 genotypic strains have been identified with varying prevalences in different geographic regions. Numerous stable mutations in the core gene and in the su-rface gene of the HBV have also been identified in untreated HBV populations. The genotypes and viral variants have been associated with certain clinical featu-res of HBV related liver disease and Hepatocellu-lar carcinoma. For example Genotype C is associated withlater hepatitis B e antigen(HBe Ag) seroconversion, and more advanced liver disease. Genotype A is associated with a greater risk of progression to chronicity in adu-lt acqu-ired HBV infections. Genotype D is particu-larly associated with the precore mu-tation and HBe Ag negative chronic hepatitis B(CHB). The genotypes prevalent in parts of West Africa, Central and Sou-th America, E, F and H respectively, are less well stu-died. Viral variants especially the Basal Core Promotor mutation is associated with increased risk of fibrosis and cancer of the liver. Althou-gh not cu-rrently part of rou-tine clinical care, evalu-ation of genotype and viral variants may provide u-sefu-l adju-nctive information in predicting risk abou-t liver related morbidity in patients with CHB.

关键词： Chronic hepatitis B Genotype Pre-core Basal core promotor Mutations