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Dilawari A, Cangiarella J, Smith J, Huang A, Downey A, Muggia F. Co-existence of breast and ovarian cancers in BRCA germ-line mutation carriers. Ecancermedicalscience 2008; 2:109. [PMID: 22275985 PMCID: PMC3234065 DOI: 10.3332/ecancer.2008.109] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2008] [Indexed: 12/21/2022] Open
Abstract
The co-existence of breast and ovarian cancers in the same individual should raise suspicion of a hereditary process. Patients with either BRCA1 or BRCA2 germ-line mutations have an average risk of 39% and 11% respectively of developing ovarian cancer by the age of 70; they have a risk of 35-85% of developing breast cancer in their lifetime. We report here unusual pathologic features in a BRCA2 germ-line mutation carrier recently diagnosed with synchronous breast and ovarian cancers, and summarize the findings in six other women who were diagnosed with ovarian cancer either simultaneously with the diagnosis of breast cancer or at varying times after the diagnosis. While in most instances this may be a coincidental occurrence in highly susceptible individuals, the patient we highlight raises the provocative hypothesis that at times breast cancer metastasizes to the ovaries of mutation carriers and stimulates the development of an ovarian cancer as well as other cancers. In addition, these ovarian cancers may have different mechanisms of metastases predisposing them to travel to unusual sites.
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Callaghan D, Bai J, Huang A, Vukic V, Xiong H, Jones A, Walker D, Leu LF, Beach T, Sue L, Zhang W. P4‐182: Inhibition of ABCG2 transport function by amyloid‐beta peptide augments cellular oxidative stress and inflammatory gene expression in cells. Alzheimers Dement 2008. [DOI: 10.1016/j.jalz.2008.05.2249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Baltimore D, Huang A, Manly KF, Rekosh D, Stampfer M. The synthesis of protein by mammalian RNA viruses. In: strategy of the viral genome. CIBA FOUNDATION SYMPOSIUM 2008:101-10. [PMID: 4337200 DOI: 10.1002/9780470719824.ch6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Scheinemann K, Bartels U, Huang A, Hawkins C, Bouffet E, Tabori U. Feasibility and efficacy of second-line chemotherapy at recurrence for pediatric low-grade gliomas: A comparative population-based study. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.2069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Hammond TM, Huang A, Prosser K, Frye JN, Williams NS. Parastomal hernia prevention using a novel collagen implant: a randomised controlled phase 1 study. Hernia 2008; 12:475-81. [PMID: 18484151 DOI: 10.1007/s10029-008-0383-z] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Accepted: 04/25/2008] [Indexed: 12/21/2022]
Abstract
BACKGROUND Parastomal hernias can be prevented or repaired using synthetic mesh; however, reported complications include infection, fibrosis and potential bowel erosion. The study aim was to assess the safety, feasibility and potential efficacy of using a prophylactic collagen implant. METHODS Twenty patients undergoing defunctioning stomas were randomised to a conventional procedure or reinforcement with the implant. Follow-up included regular symptom questionnaires, clinical examination, stoma site ultrasound, and serum inflammatory markers. RESULTS Ten patients (four males; mean BMI 26.3) had a conventional stoma, and ten (three males; mean BMI 26.3) received the implant. At a median of 6.5 months follow-up, a parastomal hernia was clinically evident in three of ten patients without the implant, and in none of ten patients with the implant. There were no clinical complications, ultrasound evidence of chronic seromas or serological evidence of a systemic inflammatory response. CONCLUSIONS Xenogeneic collagen has been demonstrated to aid soft tissue reinforcement. In this study, in contrast to published data relating to the use of conventional synthetic mesh, there were no complications related to infection or the implant's proximity to the bowel. This trial demonstrates that the implant is safe, feasible to use and has the potential to prevent parastomal herniation.
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Ruan X, Chen Y, Huang A, Moorhead J, Powis S, Varghese Z. INFLAMMATION CAUSES STATIN RESISTANCE: A POTENTIAL MECHANISM FOR INEFFECTIVENESS OF STATIN THERAPY. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70051-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yang CY, Chen YF, Lee CW, Huang A, Shen Y, Wei C, Liu HM. Multiphase CT angiography versus single-phase CT angiography: comparison of image quality and radiation dose. AJNR Am J Neuroradiol 2008; 29:1288-95. [PMID: 18403555 DOI: 10.3174/ajnr.a1073] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Conventional CT angiography (CTA) is acquired during only a short interval in the arterial phase, which limits its ability to evaluate the cerebral circulation. Our aim was to compare the image quality and radiation dose of conventional single-phase CTA (SP-CTA) with a multiphase CTA (MP-CTA) algorithm reconstructed from a perfusion CT (PCT) dataset. MATERIALS AND METHODS Fifty consecutive patients undergoing head CTA and PCT in 1 examination were enrolled. The PCT dataset was obtained with 40.0-mm-detector coverage, 5.0-mm axial thickness, 80 kilovolt peak (kVp), 180 mA, and 30 mL of contrast medium. MP-CTA was reconstructed from the same PCT dataset with an axial thickness of 0.625 mm by using a new axial reconstruction algorithm. A conventional SP-CTA dataset was obtained with 0.625-mm axial thickness, 120 kVp, 350 mA, and 60 mL of contrast medium. We compared image quality, vascular enhancement, and radiation dose. RESULTS SP-CTA and MP-CTA of 50 patients (male/female ratio, 31/19; mean age, 59.25 years) were analyzed. MP-CTA was significantly better than SP-CTA in vascular enhancement (P = .002), in the absence of venous contamination (P = .006), and was significantly higher in image noise (P < .001). MP-CTA used less contrast medium than SP-CTA and could demonstrate hemodynamic information. The effective dose of MP-CTA was 5.73 mSv, which was equal to that in conventional PCT, and it was 3.57 mSv in SP-CTA. CONCLUSION It is feasible that MP-CTA may provide both CTA and PCT results. Compared with SP-CTA, MP-CTA provides comparable image quality, better vascular enhancement, hemodynamic information, and more noise with less detail visibility with a lower tube voltage. The radiation dose of MP-CTA is higher than that of SP-CTA, but the dose can be reduced by altering the sampling interval.
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Tantbirojn D, Huang A, Ericson MD, Poolthong S. Change in surface hardness of enamel by a cola drink and a CPP-ACP paste. J Dent 2007; 36:74-9. [PMID: 18045766 DOI: 10.1016/j.jdent.2007.10.008] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 10/15/2007] [Accepted: 10/17/2007] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES This in vitro study used surface microhardness to evaluate whether a paste containing casein phosphopeptide amorphous calcium phosphate (CPP-ACP) can reharden tooth enamel softened by a cola drink, and how different saliva-substitute solutions affect the enamel hardness. METHODS Twenty-four bovine incisors, each tooth consisting of treatment and control halves, were immersed in a cola drink (Coke) for 8 min, then placed under a 0.4 mL/min drip with various saliva-substitute solutions. The saliva-substitute solutions were: saliva-like solution (SLS) with 1 ppm fluoride, SLS without fluoride, and Biotene mouthwash. CPP-ACP paste was applied to the treatment halves for 3 min at 0, 8, 24, and 36 h. Knoop microhardness measurements were performed at baseline, after the cola drink immersion, and after 24 and 48 h contact with saliva-substitute solution. RESULTS Enamel hardness significantly decreased after immersion in cola drink (ANOVA, p<0.05). After contact with saliva-like solutions for 48 h, those treated with CPP-ACP paste were significantly harder than those untreated regardless of the presence of 1 ppm fluoride in the saliva-like solution (ANOVA, p<0.05). Biotene mouthwash significantly softened the enamel surface (ANOVA, p<0.05). Two-way ANOVA showed significant effects of the CPP-ACP paste application and types of saliva-substitute solutions on the changes in surface hardness of the softened enamel at a significance level of 0.05. CONCLUSION The application of CPP-ACP paste with continuous replenishment of saliva-like solution for 48 h significantly hardened enamel softened by a cola drink. Biotene mouthwash softened enamel surface after 48 h contact.
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Abstract
OBJECTIVE Laparoscopic surgery is increasingly being performed for benign and malignant colorectal disease. This study examines the short-term results in a consecutive series of laparoscopic colorectal procedures performed over 2 years. METHOD A prospective database was established for all elective patients undergoing laparoscopic colorectal surgery by one surgeon. The main outcome measures assessed were operative duration, conversion rate, length of hospital stay, morbidity and mortality and lymph node harvest. RESULTS Two hundred and thirty-one consecutive patients were referred for elective colorectal surgery, with 18 patients excluded from laparoscopic surgery. Thirteen patients had nonresective laparoscopic colorectal procedures for endometriosis and have been excluded from the series. Of 200 patients who underwent a laparoscopic colorectal procedure, 114 (57%) were female, the median age was 67 years (inter-quartile range (IQR) 57-76), and there were 116 malignancies. The most common operations were anterior resection and sigmoid colectomy (n = 82), right hemicolectomy (n = 62) and left hemicolectomy (n = 12). The median operating time was 120 min (IQR 90-150) and 10 patients (5%) required conversion to open surgery. The median lymph node harvest in malignancies was 21 nodes (IQR 15-30) and no positive resection margins were found. There were two deaths and 29 significant complications (14.5%), with seven patients requiring re-operations because of postoperative complications. The median postoperative hospital stay was 4 days (IQR 3-6) and 13 patients (6.5%) were re-admitted within 30 days of hospital discharge. CONCLUSION Laparoscopic colorectal surgery is possible for most benign and malignant conditions, with low conversion and complication rates, as well as short hospital stay.
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Huang A, Van Handel B, Prashad S, Hamalainen E, Magnusson M, Mikkola H. Hematopoiesis in the first trimester human placenta: a model for understanding human stem cell development. Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.07.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Brennan K, Levens E, Huang A, Richter K, Hill D, Kipersztok S. Recipient age, not paternal age, reduces pregnancy rate in oocyte donation cycles. Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.07.892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kang S, Huang A, Trivax B, Chao F, Wu TJ. Correlation Between Serum Human Chorionic Gonadotropin (hCG) Levels and Ultrasonographic Findings of Pregnancy in IVF Cycles. Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.01.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Trivax B, Huang A, Sarajari S, Buehler N, Surrey M, Danzer H, Hill D. To Transfer or Not to Transfer: An Important Question that PGD Answers. Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.01.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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239
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Huang A, Prasad S, Hamalainen E, Mikkola H. Defining Fetal Hematopoietic Microenvironments to Understand Human Stem Cell Development. Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.01.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Janapatla R, Yan J, Huang A, Chen H, Wu H, Wu J. R2142 Inducible clindamycin resistance in Staphylococcus aureus isolates causing bacteraemia at a university hospital in southern Taiwan. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71981-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lopez Franco G, Huang A, Pleshko Camacho N, Stone D, Blank R. Increased Young's modulus and hardness of Col1a2oim dentin. J Dent Res 2007; 85:1032-6. [PMID: 17062745 PMCID: PMC2246052 DOI: 10.1177/154405910608501111] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Mice harboring the Col1a2(oim) mutation (oim) express dentinogenesis imperfecta. To determine the effect of Col1a2 genotype on tissue mechanical properties, we compared Young's modulus and hardness of dentin in the 3 Col1a2 genotypes. Upper incisors were tested by nanoindentation. Genotype had a significant effect on Young's modulus, but there was not a simple mutant allele dosage relationship. The effect of genotype on hardness did not reach significance. Hardness and Young's modulus were greater near the dento-enamel junction than near the pulp chamber. Greater hardness and Young's modulus values near the dento-enamel junction reflected continued mineralization of the dentin following its initial synthesis. Analysis showed the mechanical data to be consistent with Fourier transform infrared and backscattered electron microscopy studies that revealed increased mineralization in oim bone. Analysis of the data suggests that clinical fragility of teeth in oim mice is not due to deficiencies of hardness or Young's modulus, but may be due to defects in post-yield behavior or resistance to fatigue damage.
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Abstract
OBJECTIVE Chronic granulomatous disease is a rare clinical entity characterized by recurrent infective and inflammatory complications. Patients are usually assigned to specialist centres, but nonspecialist clinicians may be required to treat these patients in the emergency setting. This review serves as a management guide to those clinicians who are faced with patients presenting with gastrointestinal manifestations of chronic granulomatous disease. METHODS This review is based on a literature search (Medline and NLM PubMed) with manual cross-referencing of all articles related to gastrointestinal chronic granulomatous disease. RESULTS Gastrointestinal tract involvement is present in most affected patients. Clinical presentation can mimic common surgical complications such as colitis, perianal sepsis, gastric outlet obstruction and liver abscess. A history of recurrent infections during childhood is common. Management involves haematological, microbiological, endoscopic and radiological investigations. Treatment modalities include early aggressive empirical antimicrobial therapy for sepsis, immunomodulation for inflammatory complications and surgical drainage of abscesses. CONCLUSION Early involvement of a centre with immunological expertise combined with aggressive management of complications significantly improves morbidity and mortality from this rare condition.
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Huang A, Adusumalli J, Patel S, Kao L, Williams J, Pisarska M. O-52. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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246
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Huang A, Kumetz L, Trivax B, Chang W, Decherney A, Hill D. P-52. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Brennan K, Huang A, Azziz R. P-870. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.1260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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King D, Camacho N, Huang A, Jarjoura D, McEwen H, Askew M, Majors A. Growth hormone injections improve bone quality in OI mice. FASEB J 2006. [DOI: 10.1096/fasebj.20.4.a637-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lebedeva TV, Ohashi M, Huang A, Zannelli G, Yu N. A frame shift due to a two-nucleotide insertion results in an HLA-DRB1 null allele, DRB1*1517N. ACTA ACUST UNITED AC 2005; 66:334-5. [PMID: 16185335 DOI: 10.1111/j.1399-0039.2005.00472c.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lebedeva TV, Huang A, Ohashi M, Sibilia P, Alosco SM, Kempenich J, Yu N. The recombinant HLA-B*5518 allele supports the evidence of conserved haplotype association of rare alleles. ACTA ACUST UNITED AC 2005; 66:156-9. [PMID: 16029440 DOI: 10.1111/j.1399-0039.2005.00442.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Allelic polymorphism of the major histocompatibility complex arises mostly from gene recombination. Intralocus gene recombination usually involves short fragments of DNA leading most commonly to single-nucleotide substitutions and rarely involves large fragments. Here, we report a new recombinant human leukocyte antigen (HLA)-B*5518 allele that has arisen via recombination of a large fragment of DNA spanning more than 70 nucleotides. During routine HLA typing of potential volunteer donors for the National Marrow Donor Program((R)), a new HLA-B allele was identified in two donors from Guam. The allele, B*5518, appears to be a product of recombination between B*5502 and B*40. Exons 1, 3, and 4 of the new allele belong to B*5502, whereas part of exon 2 belongs to one of B*40 alleles. Introns 1 and 2 appear to belong to B*55, suggesting that the recombination event may have occurred within the homologous parts of exon 2.
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