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The sexually dimorphic expression of glutamate transporters and their implication in pain after spinal cord injury

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Neural Regeneration Research 2025年第11期20卷 3317-3329页

作者： Jennifer M.Colón-Mercado Aranza I.Torrado-Tapias Iris K.Salgado Jose M.Santiago Samuel E.Ocasio Rivera Dina P.Bracho-Rincon Luis H.Pagan Rivera Jorge D.Miranda Department of Physiology University of Puerto RicoMedical Sciences CampusSan JuanPRUSA national Institutes of Health National Human Genome Research InstituteBethesdaMDUSA Universidad Central del Caribe School of MedicineBayamónPRUSA University of Puerto Rico Carolina CampusCarolinaPRUSA Institute of Neurobiology San JuanPRUSA

In addition to the loss of motor function,~60% of patients develop pain after spinal cord *** cellular-molecular mechanisms are not well understood,but the data suggests that plasticity within the rostral,epicenter,and caudal penumbra of the injury site initiates a cellularmolecular interplay that acts as a rewiring mechanism leading to central neuropathic *** can lead to the formation of new connections triggering abnormal sensory *** excitatory glutamate transporters are responsible for the reuptake of extracellular glutamate which makes them a critical target to prevent neuronal hyperexcitability and *** previous studies showed a sexually dimorphic therapeutic window for spinal cord injury after treatment with the selective estrogen receptor modulator *** this study,we investigated the anti-allodynic effects of tamoxifen in male and female rats with spinal cord *** hypothesized that tamoxifen exerts anti-allodynic effects by increasing the expression of glutamate transporters,leading to reduced hyperexcitability of the secondary neuron or by decreasing aberrant *** and female rats received a moderate contusion to the thoracic spinal cord followed by subcutaneous slow-release treatment of tamoxifen or matrix pellets as a control(placebo).We used von Frey monofilaments and the“up-down method”to evaluate mechanical *** treatment decreased allodynia only in female rats with spinal cord injury revealing a sexdependent *** expression profile of glutamatergic transporters(excitatory amino acid transporter 1/glutamate aspartate transporter and excitatory amino acid transporter 2/glutamate transporter-1)revealed a sexual dimorphism in the rostral,epicenter,and caudal areas of the spinal cord with a pattern of expression primarily on *** rodents showed a significantly higher level of excitatory amino acid transporter-1 expression while male rodents showed increased

关键词： allodynia central neuropathic pain EAAT-1/GLAST EAAT-2/GLT-1 glutamate transporters selective estrogen receptor modulator sexual dimorphism spinal cord injury trauma

Cancer of the uncinate process of the pancreas:surgical anatomy and clinicopathological features

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Hepatobiliary & Pancreatic Diseases International 2009年第6期8卷 569-574页

作者： Adrian W. O'Sullivan Nigel Heaton Mohamed Rela Institute of Liver Studies King's College Hospital National Health Service(NHS) Foundation Trust

BACKGROUND:The clinicopathological features of uncinate process pancreatic cancer(UPPC) are poorly *** the anatomy of the uncinate process and its division during surgery are central to pancreaticoduodenectomy for *** set out to describe the embryology and anatomy of the uncinate process and the clinicopathological features of *** SOURCES:All published case series of UPPC were reviewed and included in this ***:The true incidence of UPPC is difficult to quantify,with the reported incidence ranging from 2.5% to 10.7% of pancreatic *** are 5 published series of UPPC including 117 patients,72 males and 45 females,aged from 45-53 years to 61-84 *** median survival was 5 or 5.5 months in 3 of the series,12.1 months in another based only on potentially resectable lesions and 17 months in another based only on resected ***:The number of reported series of UPPC is limited,with vague symptoms as the predominant presenting features of the *** prognosis is poor with synchronous venous resection demonstrating a survival advantage.

关键词： pancreatic neoplasms uncinate process anatomy embryology surgery

Treatment of refractory diabetic macular edema with a fluocinolone acetonide implant in vitrectomized and non-vitrectomized eyes

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International Journal of Ophthalmology(English edition) 2018年第12期11卷 1951-1956页

作者： Alberto La Mantia Alan Hawrami Heidi Laviers Sudeshna Patra Hadi Zambarakji Eye Treatment Centre Whipps Cross University Hospital Barts Health National Health System Foundation Trust

AIM: To report real-life data on the use of an intravitreal fluocinolone acetonide implant in the treatment of refractory diabetic macular edema(DME) in pars plana vitrectomized(PPV) and non-PPV ***: This was a comparative retrospective observational study of 23 eyes with chronic DME. Bestcorrected visual acuity(BCVA) and central macular thickness(CMT) were recorded at baseline, 1, 4 and 12 mo. Descriptive statistics and non-parametric tests were performed to analyze and compare PPV and non-PPV eyes. RESULTS: Seven PPV and 16 non-PPV eyes were included in the study. Median BCVA in the non-PPV group varied from 0.65 logMAR [Interquartile range(IQR): 0.40] at baseline to 0.42 logMAR(IQR: 0.40) at 12 mo. Median CMT varied from 430 μm(IQR: 131.3) at baseline to 317 μm(IQR: 107.5) at 12 mo. Median BCVA in the PPV group varied from 0.60 logMAR(IQR: 0.62) at baseline to 0.74 logMAR(IQR: 0.34) at 12 mo. Median CMT varied from 483 μm(IQR: 146) at baseline to 397 μm(IQR: 132) at 12 mo. Of 0/7 eyes and 1/16 eyes in the PPV and non-PPV eyes respectively had a baseline visual acuity of 6/12 or better(0.3 logMAR). At last follow up, 1/7 and 5/16 eyes in the PPV and non-PPV group respectively achieved a visual acuity of 6/12 or ***: Visual outcomes are modest following the use of the fluocinolone acetonide implant for chronic DME. The steroid implant is a useful treatment option in the management of refractory DME in vitrectomized and non-vitrectmized eyes.

关键词： diabetic macular edema fluocinolone acetonide intravitreal implant steroid vitrectomy

Real- world evaluation of Brainomix e- Stroke software

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Stroke & Vascular Neurology 2024年第5期9卷 497-504页

作者： Dermot Mallon Matthew Fallon Eirini Blana Cillian McNamara Arathi Menon Chak Lam Ip Jack Garnham Tarek Yousry Peter Cowley Robert Simister David Doig Lysholm Department of Neuroradiology National Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK UCL Queen Square Institute of Neurology LondonUK Comprehensive Stroke Centre University College London Hospitals NHS Foundation TrustLondonUK

Background and purpose Brainomix e-Stroke is an artificial intelligence-based decision support tool that aids the interpretation of CT imaging in the context of acute *** e-Stroke has the potential to improve the speed and accuracy of diagnosis,real-world validation is *** aim of this study was to prospectively evaluate the performance of Brainomix e-Stroke in an unselected cohort of patients with suspected acute ischaemic *** The study cohort included all patients admitted to the University College London Hospital Hyperacute Stroke Unit between October 2021 and April *** e-ASPECTS and e-CTA,the ground truth was determined by a neuroradiologist with access to all clinical and imaging *** e-CTP,the values of the core infarct and ischaemic penumbra were compared with those derived from ***,an alternate software used at our *** 1163 studies were performed in 551 patients admitted during the study *** these,1130(97.2%)were successfully processed by e-Stroke in an average of *** identifying acute middle cerebral artery territory ischaemia,e-ASPECTS had an accuracy of 77.0%and was more specific(83.5%)than sensitive(58.6%).The accuracy for identifying hyperdense thrombus was lower(69.1%),which was mainly due to many false positives(positive predictive value of 22.9%).Identification of acute haemorrhage was highly accurate(97.8%)with a sensitivity of 100%and a specificity of 97.6%;false positives were typically caused by areas of *** accuracy of e-CTA for large vessel occlusions was 91.5%.The core infarct and ischaemic penumbra volumes provided by e-CTP strongly correlated with those provided by ***(ρ=0.804—0.979).Conclusion Brainomix e-Stroke software provides rapid and reliable analysis of CT imaging in the acute stroke setting although,in line with the manufacturer’s guidance,it should be used as an adjunct to expert interpretation rather than a standalone decision-making tool.

关键词： admitted false Stroke

Colorectal cancer with liver metastases:Neoadjuvant chemotherapy,surgical resection first or palliation alone?

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World Journal of Gastroenterology 2014年第35期20卷 12391-12406页

作者： Khurum Khan Anita Wale Gina Brown Ian Chau Gastrointestinal Unit the Royal Marsden NHS Foundation Trust Department of Radiology the Royal Marsden NHS Foundation Trust

Colorectal cancer (CRC) is one of the commonest cancers with 1.2 million new cases diagnosed each year in the world. It remains the fourth most common cause of cancer-related mortality in the world and accounts for > 600000 cancer-related deaths each year. There have been significant advances in treatment of metastatic CRC in last decade or so, due to availability of new active targeted agents and more aggressive approach towards the management of CRC, particularly with liver-only-metastases; however, these drugs work best when combined with conventional chemotherapy agents. Despite these advances, there is a lack of biomarkers to inform us about the accurate management of the patients with metastatic CRC. It is therefore imperative to carefully select the patients with comprehensive multi-disciplinary team input in order to optimise the management of these patients. In this review we will discuss various treatment options available in management of colorectal liver metastases with potential guidance on how and when to choose these options along with consideration on future directions in management of this disease.

关键词： Colorectal cancer Colorectal liver metastases Surgical resection Neo-adjuvant chemotherapy Radiofrequency ablation Disappearing liver metastases

Pre-expanded occipito-dorsal flap reconstruction for neck burns: A novel approach

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Burns & Trauma 2014年第2期2卷 88-90页

作者： Sameena Hassan Peter Brooks Department of Plastics Burns and Reconstructive Surgery Nottingham University Hospitals National Health Service Trust City Campus Nottingham England

Reconstruction of the neck following a burn injury poses a significant challenge to reconstructive burn surgeons. Here, we report a case of successful application of pre-expanded occipito-dorsal flaps in the reconstruction of postburn scars and contractures in the neck. The patient was a 10-year-old boy who sustained scars and contractures secondary to a burn injury 4 years ago. "Super-thin"flaps were obtained through pre-expansion in the occipito-dorsal area and then transferred to the recipient site. This approach resulted in an esthetic satisfaction and a significant functional improvement, thereby having significant clinical implications in the reconstruction of soft tissue damage secondary to burn injuries in the neck.

关键词： Burns neck tissue expansion occipito-dorsal flap

Cytoreductive surgery and intraperitoneal chemotherapy for colorectal peritoneal metastases

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World Journal of Gastroenterology 2014年第38期20卷 14018-14032页

作者： Reza Mirnezami Brendan J Moran Kate Harvey Tom Cecil Kandiah Chandrakumaran Norman Carr Faheez Mohamed Alexander H Mirnezami Section of Biosurgery and Surgical Technology Department of Surgery and CancerImperial College London10th Floor QEQM BuildingSt Mary’s Hospital national Pseudomyxoma Peritonei Centre Hampshire Hospitals Foundation Trust Somers Cancer Research Building University of Southampton Cancer Sciences DivisionSouthampton University Hospital NHS Trust

AIM: To systematically review the available evidence regarding cytoreductive surgery (CRS) and intraperitoneal chemotherapy (IPC) for colorectal peritoneal metastases (CPM).

关键词： Colorectal cancer Peritoneal metastasis Cytoreductive surgery Intraperitoneal chemotherapy Hyperthermic intraperitoneal chemotherapy

Impact of mechanical bowel preparation in elective colorectal surgery:A meta-analysis

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World Journal of Gastroenterology 2018年第4期24卷 519-536页

作者： Katie E Rollins Hannah Javanmard-Emamghissi Dileep N Lobo Gastrointestinal Surgery Nottingham Digestive Diseases Centre National Institute of Health Research (NIHR) Nottingham Biomedical Research Centre Nottingham University Hospitals NHS Trust and University of Nottingham Queen’s Medical Centre

AIM To analyse the effect of mechanical bowel preparation vs no mechanical bowel preparation on outcome in patients undergoing elective colorectal *** Meta-analysis of randomised controlled trials and observational studies comparing adult patients receiving mechanical bowel preparation with those receiving no mechanical bowel preparation, subdivided into those receiving a single rectal enema and those who received no preparation at all prior to elective colorectal surgery. RESULTS A total of 36 studies(23 randomised controlled trials and 13 observational studies) including 21568 patients undergoing elective colorectal surgery were included. When all studies were considered, mechanical bowel preparation was not associated with any significant difference in anastomotic leak rates(OR = 0.90, 95%CI: 0.74 to 1.10, P = 0.32), surgical site infection(OR = 0.99, 95%CI: 0.80 to 1.24, P = 0.96), intraabdominal collection(OR = 0.86, 95%CI: 0.63 to 1.17, P = 0.34), mortality(OR = 0.85, 95%CI: 0.57 to 1.27, P = 0.43), reoperation(OR = 0.91, 95%CI: 0.75 to 1.12, P = 0.38) or hospital length of stay(overall mean difference 0.11 d, 95%CI:-0.51 to 0.73, P = 0.72), when compared with no mechanical bowel preparation, nor when evidence from just randomized controlledtrials was analysed. A sub-analysis of mechanical bowel preparation vs absolutely no preparation or a single rectal enema similarly revealed no differences in clinical outcome measures. CONCLUSION In the most comprehensive meta-analysis of mechanical bowel preparation in elective colorectal surgery to date, this study has suggested that the use of mechanical bowel preparation does not affect the incidence of postoperative complications when compared with no preparation. Hence, mechanical bowel preparation should not be administered routinely prior to elective colorectal surgery.

关键词： bowel preparation Mechanical antibiotics morbidity mortality surgery outcome complications meta-analysis

Reliable protocols for whole-mount fluorescent in situ hybridization （FISH） in the pea aphid Acyrthosiphon pisum： A comprehensive survey and analysis

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Insect Science 2014年第3期21卷 265-277页

作者： Chen-yo Chung Charles E. Cook Gee-way Lin Ting-Yu Huang Chun-che Chang Laboratory for Genetics and Development Department ofEntomologyllnstitute of Biotechnology College ofBioresources andAgriculture National Taiwan University Taipei Taiwan European Molecular Biology Laboratory European Bioinformatics Institute (EMBL-EBI) Wellcome Trust Genome Campus Hinxton Cambridge UK Research Center for Developmental Biology and Regenerative Medicine national Taiwan University Taipei Taiwan Institute of Biochemical Sciences College of Life Science National Taiwan University Taipei Taiwan Genome and Systems Biology Degree Program National Taiwan University Taipei Taiwan China

RNA in situ hybridization （ISH）, including chromogenic ISH （CISH） and fluorescent ISH （FISH）, has become a powerful tool for revealing the spatial distribution ofgene transcripts in model organisms. Previously, we developed a robust protocol for wholemount RNA CISH in the pea aphid Acyrthosiphon pisum, an emerging insect genomicmodel. In order to improve the resolving capacity of gene detection, we comprehensively surveyed current protocols of whole-mount RNA-FISH and developed protocols that allow,using confocal microscopy, clearer visualization of target messenger RNAs （mRNAs） - including those subcellularly localized and those with spatially overlapping expression. Wefind that Fast dye-based substrate fluorescence （SF）, tyramide signal amplification （TSA）, and TSA Plus all enable identifying gene expression thanks to multiplex amplificationof fluorescent signals. By contrast, methods of direct fluorescence （DF） do not allow visualizing signals. Detection of a single gene target was achieved with SF and TSA Plusfor most mRNAs, whereas TSA only allowed visualization of abundant transcripts such as Apvasl andAppiwi2 in the germ cells. For detection of multiple gene targets using doubleFISH, we recommend：（i） TSA/TSA, rather than TSA Plus/TSA Plus for colocalized mRNAs abundantly expressed in germ ceils, as proteinase K treatment can be omitted;and （ii） SF/TSA Plus for other gene targets such as Apenl and Apen2 as inactivation of enzyme conjugates is not required. SF/SF is not ideal for double FISH experiments due tosignal blurring. Based on these new conditions for RNA-FISH, we have obtained a better understanding of germline specification and embryonic segmentation in the pea *** anticipate that the RNA-FISH protocols for the pea aphid may also be used for other aphids and possibly other insect species, thus expanding the range of species from whichuseful insights into development and evolution may be obtained.

关键词： aphid fluorescence gene expression in situ hybridization model organism probe detection