The management of axillary lymph nodes in breast cancer is continually evolving. Recent data now support omitting axillary lymph node dissection (ALND) in most patients with metastases in up to two sentinel lymph nodes (SLNs) during upfront surgery and those with residual isolated tumor cells after neoadjuvant chemotherapy (NACT). In the upfront surgery setting, ALND is still indicated, however, in patients with clinically node-positive breast cancer or more than two positive SLNs and, after NACT, in case of residual micrometastases and macrometastases.
View Article and Find Full Text PDFPlast Reconstr Surg Glob Open
September 2023
Oncoplastic breast reconstruction seeks to address partial mastectomy defects in the setting of breast-conserving surgery to achieve superior aesthetic outcomes with comparable oncologic safety compared with traditional breast conservation surgery. As such, oncoplastic breast-conserving surgery has grown in popularity in recent years. Several techniques have been used to displace the volume with the remaining breast tissue or replace it with local soft-tissue options, with decision-making guided by patient and tumor characteristics, additional treatment requirements, patient preference, and available tissue resources.
View Article and Find Full Text PDFIntroduction: Children are particularly vulnerable to scald injuries, and hot beverages/foods are often implicated in this subset of pediatric burns. Burns from instant noodles are common and thus an attractive target for burn prevention. The purpose of this study is to characterize the frequency, demographics, outcomes, and circumstances of pediatric instant noodle burns to guide future educational and prevention efforts.
View Article and Find Full Text PDFp97 protein is a highly conserved, abundant, functionally diverse, structurally dynamic homohexameric AAA enzyme-containing N, D1, and D2 domains. A truncated p97 protein containing the N and D1 domains and the D1-D2 linker (ND1L) exhibits 79% of wild-type (WT) ATPase activity whereas the ND1 domain alone without the linker only has 2% of WT activity. To investigate the relationship between the D1-D2 linker and the D1 domain, we produced p97 ND1L mutants and demonstrated that this 22-residue linker region is essential for D1 ATPase activity.
View Article and Find Full Text PDFJ Plast Reconstr Aesthet Surg
July 2019
Introduction: Extracellular vesicles (EVs) are cell-secreted packages that deliver cargo to target cells to effect functional and phenotypic changes. They are secreted by many different cell types, including adipose-derived stem cells (ADSCs), which are a promising field of study in regenerative medicine. Our aim was to perform a systematic review of the literature to summarize the scientific work that has been conducted on ADSC EVs to date.
View Article and Find Full Text PDFR I Med J (2013)
August 2018
Dermatomyositis is an idiopathic inflammatory myopathy known to occur as a paraneoplastic syndrome. The course of dermatomyositis is commonly reported to mirror the course of the malignancy. Here, we report a case of dermatomyositis that developed in a patient after lump- ectomy and completed chemotherapeutic treatment.
View Article and Find Full Text PDFWe previously found that the p97 cofactor, p47, significantly decreased the potency of some ATP-competitive p97 inhibitors such as ML240 [2-(2-amino-1H-benzo[d]imidazol-1-yl)-N-benzyl-8-methoxyquinazolin-4-amine] and ML241 [2-(2H-benzo[b][1,4]oxazin-4(3H)-yl)-N-benzyl-5,6,7,8 tetrahydroquinazolin-4-amine]. In this study, we aimed to evaluate inhibitor potencies against two additional p97 cofactor complexes, p97-p37 and p97-Npl4-Ufd1. We focused on these two cofactor complexes, because the protein sequence of p37 is 50 % identical to that of p47, and the Npl4-Ufd1 heterodimer (NU) is the most-studied p97 cofactor complex.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
April 2015
Dominant mutations in p97/VCP (valosin-containing protein) cause a rare multisystem degenerative disease with varied phenotypes that include inclusion body myopathy, Paget's disease of bone, frontotemporal dementia, and amyotrophic lateral sclerosis. p97 disease mutants have altered N-domain conformations, elevated ATPase activity, and altered cofactor association. We have now discovered a previously unidentified disease-relevant functional property of p97 by identifying how the cofactors p37 and p47 regulate p97 ATPase activity.
View Article and Find Full Text PDFAnn Acad Med Singap
September 2011
Introduction: The purpose of this retrospective study was to evaluate the short- to mid-term results of the endovascular repair of thoracic aortic disease and to present an overview of our experience with thoracic endovascular aortic repair (TEVAR) in our institution.
Materials And Methods: A retrospective review of all patients who were treated and underwent TEVAR in our institution between August 2004 and November 2009 was conducted.
Results: Technical success was achieved in 100% of the patients and the 30-day mortality rate was 0%.
Ann Acad Med Singap
March 2008
Introduction: Lower extremity amputation prevention (LEAP) is an ongoing programme in our institution aimed at limb salvage in patients with critical limb ischaemia (CLI). Patients in the LEAP programme with reconstructible anatomy on initial Doppler imaging received either bypass surgery or percutaneous transluminal balloon angioplasty (PTA). We describe the 1-year limb salvage rates in 46 consecutive patients with CLI who received PTA in 2005.
View Article and Find Full Text PDFThis study attempted to identify the crucial individuals in the help-seeking pathways of Chinese caregivers of relatives suffering from early psychosis in Hong Kong. In-depth interviews with 58 caregivers were conducted. The findings suggest that although the family caregivers usually initiated the help-seeking process, informal network members were instrumental in confirming the presence of mental illness and encouraged the caregivers to seek external help.
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