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Rhidian R, Looseley A, Carey A. Supraclavicular brachial plexus and paravertebral blocks: novel regional anaesthetic technique for brachioaxillary fistula formation with a synthetic graft. Anaesth Rep 2022; 10:e12158. [PMID: 35309183 PMCID: PMC8918920 DOI: 10.1002/anr3.12158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/01/2022] [Indexed: 11/07/2022] Open
Abstract
Vascular access formation surgery for renal replacement therapy can be performed under local, regional or general anaesthesia. Regional anaesthesia may offer several advantages, however the sensory innervation to the upper medial arm can be difficult to adequately block. We describe a novel regional anaesthetic technique using both supraclavicular brachial plexus and paravertebral blocks for a multimorbid 73-year-old woman undergoing brachioaxillary fistula formation with a synthetic graft. An ultrasound-guided supraclavicular brachial plexus block was performed, followed by an ultrasound-guided T2/3 level paravertebral block. Adequate sensory blockade for surgery was achieved. Supplemental local anaesthetic infiltration was not required, and the operation was well tolerated by the patient. We consider this to be a valuable regional anaesthetic technique for vascular access formation surgery involving the upper arm.
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Affiliation(s)
- R Rhidian
- Department of Anaesthesia North Bristol NHS Trust Bristol UK
| | - A Looseley
- Department of Anaesthesia North Bristol NHS Trust Bristol UK
| | - A Carey
- Department of Anaesthesia North Bristol NHS Trust Bristol UK
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Ingraham C, Carey A, Vernon M, Berry P. Deaf-Blind Clients and Vocational Rehabilitation: Practical Guidelines for Counselors. Journal of Visual Impairment & Blindness 2020. [DOI: 10.1177/0145482x9408800207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This article presents suggestions and proved effective strategies for determining the eligibility of, conducting diagnostic workups for, and providing vocational rehabilitation services to deaf-blind individuals. It emphasizes that the optimal rehabilitation process for such clients begins before the clients transfer from educational programs.
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Affiliation(s)
- C.L. Ingraham
- East Central Region, Helen Keller National Center, 6801 Kenilworth Avenue, Suite 100, Riverdale, MD 20737
| | - A. Carey
- Deaf and deaf-blind, West Virginia Division of Rehabilitation Services, 202 Timber Trail Road, Charleston, WV 25304
| | - M. Vernon
- Western Maryland College, 37 Ridge Road, Westminster, MD 21157
| | - P. Berry
- Deaf-Blind Services, Virginia Department for the Visually Handicapped, 397 Azalea Avenue, Richmond, VA 23227
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Wesolowski R, Stover DG, Lustberg MB, Shoben A, Zhao M, Mrozek E, Layman RM, Macrae E, Duan W, Zhang J, Hall N, Wright CL, Gillespie S, Berger M, Chalmers JJ, Carey A, Balasubramanian P, Miller BL, Amaya P, Andreopoulou E, Sparano J, Shapiro CL, Villalona‐Calero MA, Geyer S, Chen A, Grever MR, Knopp MV, Ramaswamy B. Phase I Study of Veliparib on an Intermittent and Continuous Schedule in Combination with Carboplatin in Metastatic Breast Cancer: A Safety and [18F]-Fluorothymidine Positron Emission Tomography Biomarker Study. Oncologist 2020; 25:e1158-e1169. [PMID: 32452601 PMCID: PMC7418347 DOI: 10.1634/theoncologist.2020-0039] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/14/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Poly(ADP-ribose) polymerase inhibitors (PARPis) are U.S. Food and Drug Administration (FDA) approved for treatment of BRCA-mutated metastatic breast cancer. Furthermore, the BROCADE studies demonstrated benefit of adding an oral PARPi, veliparib, to carboplatin and paclitaxel in patients with metastatic breast cancer harboring BRCA mutation. Given multiple possible dosing schedules and the potential benefit of this regimen for patients with defective DNA repair beyond BRCA, we sought to find the recommended phase II dose (RP2D) and schedule of veliparib in combination with carboplatin in patients with advanced breast cancer, either triple-negative (TNBC) or hormone receptor (HR)-positive, human epidermal growth receptor 2 (HER2) negative with defective Fanconi anemia (FA) DNA-repair pathway based on FA triple staining immunofluorescence assay. MATERIALS AND METHODS Patients received escalating doses of veliparib on a 7-, 14-, or 21-day schedule with carboplatin every 3 weeks. Patients underwent [18]fluoro-3'-deoxythymidine (18 FLT) positron emission tomography (PET) imaging. RESULTS Forty-four patients (39 TNBC, 5 HR positive/HER2 negative with a defective FA pathway) received a median of 5 cycles (range 1-36). Observed dose-limiting toxicities were grade (G) 4 thrombocytopenia (n = 4), G4 neutropenia (n = 1), and G3 akathisia (n = 1). Common grade 3-4 toxicities included thrombocytopenia, lymphopenia, neutropenia, anemia, and fatigue. Of the 43 patients evaluable for response, 18.6% achieved partial response and 48.8% had stable disease. Median progression-free survival was 18.3 weeks. RP2D of veliparib was established at 250 mg twice daily on days 1-21 along with carboplatin at area under the curve 5. Patients with partial response had a significant drop in maximum standard uptake value (SUVmax ) of target lesions between baseline and early in cycle 1 based on 18 FLT-PET (day 7-21; ptrend = .006). CONCLUSION The combination of continuous dosing of veliparib and every-3-week carboplatin demonstrated activity and an acceptable toxicity profile. Decrease in SUVmax on 18 FLT-PET scan during the first cycle of this therapy can identify patients who are likely to have a response. IMPLICATIONS FOR PRACTICE The BROCADE studies suggest that breast cancer patients with BRCA mutation benefit from addition of veliparib to carboplatin plus paclitaxel. This study demonstrates that a higher dose of veliparib is tolerable and active in combination with carboplatin alone. With growing interest in imaging-based early response assessment, the authors demonstrate that decrease in [18]fluoro-3'-deoxythymidine positron emission tomography (FLT-PET) SUVmax during cycle 1 of therapy is associated with response. Collectively, this study established a safety profile of veliparib and carboplatin in advanced breast cancer while also providing additional data on the potential for FLT-PET imaging modality in monitoring therapy response.
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Affiliation(s)
- Robert Wesolowski
- Stefanie Spielman Comprehensive Breast Center, The Ohio State UniversityColumbusOhioUSA
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | - Daniel G. Stover
- Stefanie Spielman Comprehensive Breast Center, The Ohio State UniversityColumbusOhioUSA
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | - Maryam B. Lustberg
- Stefanie Spielman Comprehensive Breast Center, The Ohio State UniversityColumbusOhioUSA
| | - Abigail Shoben
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | - Meng Zhao
- Stefanie Spielman Comprehensive Breast Center, The Ohio State UniversityColumbusOhioUSA
| | - Ewa Mrozek
- Mercy Health – St. Rita's Medical CenterLimaOhioUSA
| | | | | | - Wenrui Duan
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | - Jun Zhang
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | - Nathan Hall
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | | | - Susan Gillespie
- Stefanie Spielman Comprehensive Breast Center, The Ohio State UniversityColumbusOhioUSA
| | - Michael Berger
- Stefanie Spielman Comprehensive Breast Center, The Ohio State UniversityColumbusOhioUSA
| | | | - Alahdra Carey
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | | | - Brandon L. Miller
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | - Peter Amaya
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | | | - Joseph Sparano
- Montefiore Medical Center, Albert Einstein College of MedicineBronxNew YorkUSA
| | | | | | | | - Alice Chen
- National Cancer InstituteBethesdaMarylandUSA
| | - Michael R. Grever
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
| | - Michael V. Knopp
- The Ohio State University Comprehensive Cancer CenterColumbusOhioUSA
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Shahinyan R, Amighi A, Carey A, Yoffe D, Pollard M, Nork J, Regets K, Jesse M, Eleswarapu S. 110 The Role of Traditional Urology Office Visits for Erectile Dysfunction in Young Men in the Era of Direct-to-Consumer Internet Platforms. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2019.11.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Carey A. Can Quantifiable Bone Scans Help Guide Timing of Surgery in Skeletal Class III Patients? J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.joms.2019.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Ramesh A, Carey A. Regional anaesthesia as the principle technique in breast surgery. Anaesthesia 2018; 73:905-906. [PMID: 29889997 DOI: 10.1111/anae.14317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - A Carey
- Southmead Hospital, Bristol, UK
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Zulfiqar B, Appalaneni U, Ahmed B, Hassan A, Boddu P, Carey A. Idiopathic granulomatous mastitis mimicking inflammatory breast carcinoma: What are the odds? IDCases 2016; 6:83-84. [PMID: 27790396 PMCID: PMC5081417 DOI: 10.1016/j.idcr.2016.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/16/2016] [Accepted: 10/18/2016] [Indexed: 01/15/2023] Open
Affiliation(s)
- B Zulfiqar
- Advocate Illinois Masonic Medical Centre, United States
| | - U Appalaneni
- Advocate Illinois Masonic Medical Centre, United States
| | - B Ahmed
- Advocate Illinois Masonic Medical Centre, United States
| | - A Hassan
- Advocate Illinois Masonic Medical Centre, United States
| | - P Boddu
- Advocate Illinois Masonic Medical Centre, United States
| | - A Carey
- Advocate Illinois Masonic Medical Centre, United States
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Kollipara A, Bryan E, Trimm L, Carey A, McLaughlin E, Johnston S, Beagley K. Chlamydia infection in males; an underappreciated problem. J Reprod Immunol 2016. [DOI: 10.1016/j.jri.2016.04.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Carey A, McCarthy H, Thompson A, McNulty H. A pilot study evaluating the use of the STAMP © nutrition screening tool in hospitalised infants. Clin Nutr ESPEN 2015; 10:e192. [DOI: 10.1016/j.clnesp.2015.03.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Carey A, McCarthy H, Gill J, Thompson A, McNulty H. Novel segmental proxy measures for estimating weight and height in healthy school children aged 11–18 years. Clin Nutr ESPEN 2015; 10:e211. [DOI: 10.1016/j.clnesp.2015.03.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Heywood S, Henstridge D, Richart A, Alt K, Carey A, Kammoun H, Delbridge L, Hagemeyer C, Febbraio M, Kingwell B, Siebel A. High-density lipoprotein (HDL) is a novel activator of cardiac glucose metabolism in both healthy and insulin resistant mice. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Carey A, Luyat M, Cottencin O, Thomas P, Guardia D. 1443 – Impaired multisensory integration and disruption of spatial references in anorexia nervosa. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)76475-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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13
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Carey A, Wilcox L, Allison R. On the allocation of attention in stereoscopic displays. J Vis 2012. [DOI: 10.1167/12.9.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Cinar O, Jay L, Fosnocht D, White J, Rogers L, Carey A, Horne B, Madsen T. 295 Longitudinal Trends in the Treatment of Abdominal Pain in an Academic Emergency Department. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Cinar O, Craven P, Fosnocht D, White J, Rogers L, Carey A, Horne B, Madsen T. 418 Patient Anxiety May Influence Efficacy of Emergency Department Pain Management. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cinar O, Blankenship J, Fosnocht D, White J, Rogers L, Carey A, Horne B, Madsen T. 149 Pain Management Practices in the Emergency Department: 10 Years of Experience in an Academic Center. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Carey A, Horigan G, Purvis J, McNulty H, Ward M. Homocysteine, the MTHFR 677 C→T polymorphism and family history of premature cardiovascular disease. J Hum Nutr Diet 2009. [DOI: 10.1111/j.1365-277x.2009.00952_11.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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McKenna MC, Hopkins IB, O'Brien JA, Carey A. Workshop 4: Compartmentation of Neuronal Metabolism. J Neurochem 2008. [DOI: 10.1046/j.1471-4159.2002.00041.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gilworth G, Eyres S, Carey A, Bhakta BB, Tennant A. Working with a brain injury: Personal experiences of returning to work following a mild or moderate brain injury. J Rehabil Med 2008; 40:334-9. [DOI: 10.2340/16501977-0169] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Joseph JA, Carey A, Brewer GJ, Lau FC, Fisher DR. Dopamine and Abeta-induced stress signaling and decrements in Ca2+ buffering in primary neonatal hippocampal cells are antagonized by blueberry extract. J Alzheimers Dis 2007; 11:433-46. [PMID: 17656822 DOI: 10.3233/jad-2007-11404] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We have shown previously that dietary blueberry (BB) extract supplementation (S) reversed several parameters of neuronal and behavioral (e.g., cognition) aging in rodents. Additionally, findings indicate that COS-7 cells transfected with muscarinic receptor subtypes (e.g., M1) showed decrements in Ca;{2+} clearance following depolarization (Ca;{2+} Recovery time, Ca;{2+}RT) that were antagonized by BB. Since it has been postulated that at least part of the loss of cognitive function in aging may be dependent upon a dysregulation in calcium homeostasis (i.e., Ca;{2+}RT), we assessed whether: a) Ca;{2+}RT would be altered in dopamine (DA)- or amyloid beta (Abeta)-exposed cultured primary hippocampal neuronal cells (HNC), and b) BB pre-treatment of the cells would prevent these deficits. Thus, control or BB (0.5 mg/ml)-treated HNC were exposed to DA (0.1 mM, 2 hrs), Abeta(40) (25 microM, 24 hrs), Abeta(42) (25 microM, 24 hrs), and Abeta(25-35) (25 microM, 24 hrs), and Ca;{2+}RT following KCl-induced depolarization assessed. Ca;{2+}RT was assessed as the % of HNC showing recovery to 50%-70% of control at 5, 10, or 15 min after depolarization. Results indicated that DA significantly lowered Ca;{2+}RT in the HNC at all time points examined after depolarization. However, BB treatment selectively prevented these declines in Ca;{2+}RT. In the case of Abeta, the greatest effects on Ca;{2+}RT were seen when the hippocampal cells were Abeta(42)-treated. These effects were antagonized by BB treatment. Abeta(40) produced fewer deficits on Ca;{2+}RT than those seen when the HNC were pre-treated with either A;{2+}(42) or A;{2+}(25-35), but BB was relatively ineffective in antagonizing the deficits in Ca;{2+}RT produced by A;{2+}(40) or A;{2+}(25-35). Additional analyses indicated that BBs may be exerting their protective effects in the hippocampal cells by altering levels of phosphorylated MAPK, PKCgamma, and phosphorylated CREB. Therefore it appears that at least part of the protective effect of BBs may involve alterations in stress signaling.
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Affiliation(s)
- J A Joseph
- USDA-HNRC at Tufts University, Boston, MA 02111, USA
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Carrihill-Knoll KL, Rabin BM, Shukitt-Hale B, Joseph JA, Carey A. Amphetamine-induced taste aversion learning in young and old F-344 rats following exposure to 56Fe particles. Age (Dordr) 2007; 29:69-76. [PMID: 19424832 PMCID: PMC2267659 DOI: 10.1007/s11357-007-9032-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Accepted: 03/27/2007] [Indexed: 05/21/2023]
Abstract
Exposure to (56)Fe particles produces changes in dopaminergic function and in dopamine-dependent behaviors, including amphetamine-induced conditioned taste aversion (CTA) learning. Because many of these changes are characteristic of the changes that accompany the aging process, the present study was designed to determine whether or not there would be an interaction between age and exposure to (56)Fe particles in the disruption of an amphetamine-induced CTA. One hundred and forty F-344 male rats 2-, 7-, 12-, and 16-months old, were radiated with (56)Fe particles (0.25-2.00 Gy, 1 GeV/n) at Brookhaven National Laboratory. Three days following irradiation, the rats were tested for the effects of radiation on the acquisition of a CTA produced by injection of amphetamine (3 mg/kg, i.p.). The main effect of age was to produce a significant decrease in conditioning day sucrose intake; there was no affect of age on the acquisition of the amphetamine-induced CTA. Exposing rats to (56)Fe particles disrupted the acquisition of the CTA produced by injection of amphetamine only in the 2-month-old rats. These results do not support the hypothesis of an interaction between age and exposure to (56)Fe particles in producing a disruption of amphetamine-induced CTA learning. As such, these results suggest that the aging produced by exposure to (56)Fe particles may be endpoint specific.
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Affiliation(s)
- K. L. Carrihill-Knoll
- Department of Psychology, University of Maryland Baltimore County, Baltimore, MD 21250 USA
| | - B. M. Rabin
- Department of Psychology, University of Maryland Baltimore County, Baltimore, MD 21250 USA
| | - B. Shukitt-Hale
- Human Nutrition Research Center on Aging, USDA-ARS, Tufts University, Boston, MA 02111 USA
| | - J. A. Joseph
- Human Nutrition Research Center on Aging, USDA-ARS, Tufts University, Boston, MA 02111 USA
| | - A. Carey
- Human Nutrition Research Center on Aging, USDA-ARS, Tufts University, Boston, MA 02111 USA
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Abstract
Over-running operating lists are known to be a common cause of cancellation of operations on the day of surgery. We investigated whether lists were overbooked because surgeons were optimistic in their estimates of the time that operations would take to complete. We used a questionnaire to assess the estimates of total operation time of 22 surgeons, 35 anaesthetists and 16 senior nursing staff for 31 common, general surgical and urological procedures. The response rate was 66%. We found no difference between the estimates of these three groups of staff, or between these estimates and times obtained from theatre computer records (p = 0.722). We then applied the average of the surgeons' estimates prospectively to 50 consecutive published surgical lists. Surgical estimates were very accurate in predicting the actual duration of the list (r2= 0.61; p < 0.001), but were poor at booking the list to within its scheduled duration: 50% of lists were predictably overbooked, 50% over-ran their scheduled time, and 34% of lists suffered a cancellation. We suggest that using the estimates of operating times to plan lists would reduce the incidence of predictable over-runs and cancellations.
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Affiliation(s)
- J J Pandit
- Nuffield Department of Anaesthetics, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
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Negoro K, McGovern DPB, Kinouchi Y, Takahashi S, Lench NJ, Shimosegawa T, Carey A, Cardon LR, Jewell DP, van Heel DA. Analysis of the IBD5 locus and potential gene-gene interactions in Crohn's disease. Gut 2003; 52:541-6. [PMID: 12631666 PMCID: PMC1773608 DOI: 10.1136/gut.52.4.541] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Genetic variation in the chromosome 5q31 cytokine cluster (IBD5 risk haplotype) has been associated with Crohn's disease (CD) in a Canadian population. We studied the IBD5 risk haplotype in both British and Japanese cohorts. Disease associations have also been reported for CARD15/NOD2 and TNF variants. Complex interactions between susceptibility loci have been shown in animal models, and we tested for potential gene-gene interactions between the three CD associated loci. METHODS Family based association analyses were performed in 457 British families (252 ulcerative colitis, 282 CD trios) genotyped for the IBD5 haplotype, common CARD15, and TNF-857 variants. To test for possible epistatic interactions between variants, transmission disequilibrium test analyses were further stratified by genotype at other loci, and novel log linear analyses were performed using the haplotype relative risk model. Case control association analyses were performed in 178 Japanese CD patients and 156 healthy controls genotyped for the IBD5 haplotype. RESULTS The IBD5 haplotype was associated with CD (p=0.007), but not with UC, in the British Caucasian population. The CARD15 variants and IBD5 haplotype showed additive main effects, and in particular no evidence for epistatic interactions was found. Variants from the IBD5 haplotype were extremely rare in the Japanese. CONCLUSIONS The IBD5 risk haplotype is associated with British CD. Genetic variants predisposing to CD show heterogeneity and population specific differences.
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Affiliation(s)
- K Negoro
- Wellcome Trust Centre for Human Genetics, University of Oxford, UK. Tohoku University Graduate School of Medicine, Sendai, Japan. Oxagen Ltd, Abingdon, UK. Gastroenterology Unit, University of Oxford, UK
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McKenna MC, Hopkins IB, Carey A. Alpha-cyano-4-hydroxycinnamate decreases both glucose and lactate metabolism in neurons and astrocytes: implications for lactate as an energy substrate for neurons. J Neurosci Res 2001; 66:747-54. [PMID: 11746398 DOI: 10.1002/jnr.10084] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The rates of uptake and oxidation of [U-(14)C]lactate and [U-(14)C]glucose were determined in primary cultures of astrocytes and neurons from rat brain, in the presence and absence of the monocarboxylic acid transport inhibitor alpha-cyano-4-hydroxycinnamate (4-CIN). The rates of uptake for 1 mM lactate and glucose were 7.45 +/- 1.35 and 8.80 +/- 1.0 nmol/30 sec/mg protein in astrocytes and 2.36 +/- 0.19 and 1.93 +/- 0.16 nmol/30 sec/mg protein in neuron cultures, respectively. Lactate transport into both astrocytes and neurons was significantly decreased by 0.25-1.0 mM 4-CIN; however, glucose uptake was not affected. The rates of (14)CO(2) formation from 1 mM lactate and glucose were 12.49 +/- 0.77 and 3.42 +/- 0.67 nmol/hr/mg protein in astrocytes and 29.32 +/- 2.81 and 10.04 +/- 1.79 nmol/hr/mg protein in neurons, respectively. Incubation with 0.25 mM 4-CIN decreased the oxidation of lactate and glucose to 57.1% and 54.1% of control values in astrocytes and to 13.2% and 41.6% of the control rates in neurons, respectively. Preincubation with 4-CIN further decreased the oxidation of both glucose and lactate. Studies with glucose specifically labeled in the one and six positions demonstrated that 4-CIN decreased mitochondrial glucose oxidation but did not impair the metabolism of glucose via the pentose phosphate pathway in the cytosol. The lack of effect of 4-CIN on glutamate oxidation demonstrated that overall mitochondrial metabolism was not impaired. These findings suggest that the impaired neuronal function and tissue damage in the presence of 4-CIN observed in other studies may be due in part to decreased uptake of lactate; however, the effects of 4-CIN on mitochondrial transport would significantly decrease the oxidative metabolism of pyruvate derived from both glucose and lactate.
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Affiliation(s)
- M C McKenna
- Department of Pediatrics, University of Maryland School of Medicine, 10-035 BRB, 655 W. Baltimore Street, Baltimore, MD 21201, USA.
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Vithana EN, Abu-Safieh L, Allen MJ, Carey A, Papaioannou M, Chakarova C, Al-Maghtheh M, Ebenezer ND, Willis C, Moore AT, Bird AC, Hunt DM, Bhattacharya SS. A human homolog of yeast pre-mRNA splicing gene, PRP31, underlies autosomal dominant retinitis pigmentosa on chromosome 19q13.4 (RP11). Mol Cell 2001; 8:375-81. [PMID: 11545739 DOI: 10.1016/s1097-2765(01)00305-7] [Citation(s) in RCA: 235] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We report mutations in a gene (PRPF31) homologous to Saccharomyces cerevisiae pre-mRNA splicing gene PRP31 in families with autosomal dominant retinitis pigmentosa linked to chromosome 19q13.4 (RP11; MIM 600138). A positional cloning approach supported by bioinformatics identified PRPF31 comprising 14 exons and encoding a protein of 499 amino acids. The level of sequence identity to the yeast PRP31 gene indicates that PRPF31 is also likely to be involved in pre-mRNA splicing. Mutations that include missense substitutions, deletions, and insertions have been identified in four RP11-linked families and three sporadic RP cases. The identification of mutations in a pre-mRNA splicing gene implicates defects in the splicing process as a novel mechanism of photoreceptor degeneration.
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Affiliation(s)
- E N Vithana
- Department of Molecular Genetics, Institute of Ophthalmology, University College London, ECIV 9EL, London, United Kingdom
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Dechairo B, Dimon C, van Heel D, Mackay I, Edwards M, Scambler P, Jewell D, Cardon L, Lench N, Carey A. Replication and extension studies of inflammatory bowel disease susceptibility regions confirm linkage to chromosome 6p (IBD3). Eur J Hum Genet 2001; 9:627-33. [PMID: 11528509 DOI: 10.1038/sj.ejhg.5200687] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2001] [Revised: 05/09/2001] [Accepted: 05/16/2001] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the intestine, commonly diagnosed as either ulcerative colitis (UC) or Crohn's disease (CD). Epidemiological studies have consistently shown that both genetic and environmental factors influence the pathogenesis of IBD. A number of genome scans have been conducted in cohorts of IBD families with affected sibling pairs (ASPs) to identify chromosomal regions that harbour IBD susceptibility genes. Several putative linked loci have been identified, including two loci on chromosomes 16 and 12, IBD1 and IBD2, which have subsequently been replicated by independent region-specific studies. We have conducted both a replication study on another linkage region, chromosome 6p (IBD3), and extension studies on two other regions, chromosomes 3p and 7q. Microsatellite markers across each region were genotyped in 284 IBD ASPs from 234 families. A nonparametric peak multipoint LOD score of 3.0 was observed near D6S291, replicating the previous linkage to chromosome 6p (IBD3). Nominal evidence of linkage was observed at both the 3p and 7q regions.
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King LS, Berg M, Chevalier M, Carey A, Elguindi EC, Blond SY. Isolation, expression, and characterization of fully functional nontoxic BiP/GRP78 mutants. Protein Expr Purif 2001; 22:148-58. [PMID: 11388813 DOI: 10.1006/prep.2001.1424] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mammalian BiP/GRP78 and Escherichia coli DnaK belong to the highly conserved hsp70 family and function as molecular chaperones in the endoplasmic reticulum or the cytosol, respectively. Induction of murine BiP/GRP78 expression in E. coli leads to growth arrest and cell death, independent of the bacterial strain and vector used. Analysis of various BiP constructs and mutants shows that the dominant-lethal phenotype is induced specifically by the expression of the 13.7-kDa C-terminal domain and abolished by a single substitution in that region. Deletion of that region also results in nontoxic gene products that can be overexpressed and purified to homogeneity. The nontoxic mutants are highly expressed in E. coli, representing up to 20% of the soluble fraction. They are catalytically active, depolymerize upon binding ATP or synthetic peptide, and interact with the J-domain of the DnaJ-like accessory protein, MTJ1, with near wild-type affinity. Our data indicate that the cytotoxic effect encountered during overexpression of recombinant proteins can be caused by a single domain and can be alleviated by a specific mutation or deletion in that region without altering the catalytic properties of the enzyme.
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Affiliation(s)
- L S King
- Center for Pharmaceutical Biotechnology, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, College of Pharmacy, Molecular Biology Research Building, 900 South Ashland Avenue, Chicago, IL 60607, USA
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McEntagart M, Carey A, Breen C, McQuaid S, Stallings RL, Green AJ, King MD. Molecular characterisation of a proximal chromosome 18q deletion. J Med Genet 2001; 38:128-9. [PMID: 11288715 PMCID: PMC1734797 DOI: 10.1136/jmg.38.2.128] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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31
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Abecasis GR, Noguchi E, Heinzmann A, Traherne JA, Bhattacharyya S, Leaves NI, Anderson GG, Zhang Y, Lench NJ, Carey A, Cardon LR, Moffatt MF, Cookson WO. Extent and distribution of linkage disequilibrium in three genomic regions. Am J Hum Genet 2001; 68:191-197. [PMID: 11083947 PMCID: PMC1234912 DOI: 10.1086/316944] [Citation(s) in RCA: 253] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2000] [Accepted: 10/24/2000] [Indexed: 11/03/2022] Open
Abstract
The positional cloning of genes underlying common complex diseases relies on the identification of linkage disequilibrium (LD) between genetic markers and disease. We have examined 127 polymorphisms in three genomic regions in a sample of 575 chromosomes from unrelated individuals of British ancestry. To establish phase, 800 individuals were genotyped in 160 families. The fine structure of LD was found to be highly irregular. Forty-five percent of the variation in disequilibrium measures could be explained by physical distance. Additional factors, such as allele frequency, type of polymorphism, and genomic location, explained <5% of the variation. Nevertheless, disequilibrium was occasionally detectable at 500 kb and was present for over one-half of marker pairs separated by <50 kb. Although these findings are encouraging for the prospects of a genomewide LD map, they suggest caution in interpreting localization due to allelic association.
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Affiliation(s)
- G R Abecasis
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, England OX3 7BN.
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32
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Godley SH, Finch M, Dougan L, McDonnell M, McDermeit M, Carey A. Case management for dually diagnosed individuals involved in the criminal justice system. J Subst Abuse Treat 2000; 18:137-48. [PMID: 10716097 DOI: 10.1016/s0740-5472(99)00027-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A case-management model for individuals with substance abuse and mental health disorders who are involved in the criminal justice system is described, based on the experience of a rural demonstration project. Detailed descriptions of case-management activities and the philosophy underlying this model of case management are provided. A major goal of these case-management services was to improve access to appropriate treatment for the target population. Evaluation data describing the population served, case-management implementation, and outcomes are presented along with a case vignette. Six-month follow-up data revealed significantly fewer legal problems and apparent symptom relief for participants in the project. Participants reported improvement in most life areas measured compared to the year before, and were generally satisfied with the case-management services. Barriers observed in implementing these types of services and issues for replication are outlined and discussed.
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Affiliation(s)
- S H Godley
- Chestnut Health Systems, Bloomington, IL 61701, USA.
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33
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Carey B, Carey A, Griffin M, Nicolaides A, Studd J. Risk factors associated with the presence of atherosclerotic plaques in postmenopausal women. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)85170-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Uterine artery embolisation is a new technique for the treatment of uterine fibroids. We report a death after this procedure.
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35
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Breen CJ, Barton L, Carey A, Dunlop A, Glancy M, Hall K, Hegarty AM, Khokhar MT, Power M, Ryan K, Green AJ, Stallings RL. Applications of comparative genomic hybridisation in constitutional chromosome studies. J Med Genet 1999; 36:511-7. [PMID: 10424810 PMCID: PMC1734415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
G band cytogenetic analysis often leads to the discovery of unbalanced karyotypes that require further characterisation by molecular cytogenetic studies. In particular, G band analysis usually does not show the chromosomal origin of small marker chromosomes or of a small amount of extra material detected on otherwise normal chromosomes. Comparative genomic hybridisation (CGH) is one of several molecular approaches that can be applied to ascertain the origin of extra chromosomal material. CGH is also capable of detecting loss of material and thus is also applicable to confirming or further characterising subtle deletions. We have used comparative genomic hybridisation to analyse 19 constitutional chromosome abnormalities detected by G band analysis, including seven deletions, five supernumerary marker chromosomes, two interstitial duplications, and five chromosomes presenting with abnormal terminal banding patterns. CGH was successful in elucidating the origin of extra chromosomal material in 10 out of 11 non-mosaic cases, and permitted further characterisation of all of the deletions that could be detected by GTG banding. CGH appears to be a useful adjunct tool for either confirming deletions or defining their breakpoints and for determining the origin of extra chromosomal material, even in cases where abnormalities are judged to be subtle. We discuss internal quality control measures, such as the mismatching of test and reference DNA in order to assess the quality of the competitive hybridisation effect on the X chromosome.
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Affiliation(s)
- C J Breen
- National Centre for Medical Genetics, Our Lady's Hospital for Sick Children, Crumlin, Dublin, Ireland
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Abstract
A retrospective case control study of farm level risk factors for toxic mastitis was carried out in November and December 1996. Twenty-six farms from mid-Somerset were visited: 13 case farms (had had a cow with toxic mastitis in the previous year) and 13 geographically matched controls (no case of toxic mastitis). The farmers were interviewed and the buildings were examined. Information was collected on the type and quality of housing, usual milking routines, milk quality and mastitis prevalence in the previous year. All the data were collected on to pretested recording sheets and loaded into a database. Simple and complex analysis was done. The following variable were significantly (P < 0.05) associated with an increased risk of toxic mastitis in the simple analysis: housing cows in October rather than November; a low number of calving boxes per cow; a high proportion of cows with intermediate body condition and low herd bulk milk somatic cell counts (HBMSCC). In the final model low HBMSCC and a high proportion of cows with intermediate body condition remained significant. The authors conclude that, despite the small size sample, the results of this study are consistent, plausible and support the information from previous experimental and observational studies about the role of somatic cell counts in toxic mastitis.
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Affiliation(s)
- N A Tadich
- University of Bristol, Department of Clinical Veterinary Science, Langford
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37
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Joshi VM, Carey A, Simpson P, Paridon SM. Exercise performance following repair of hypoplastic left heart syndrome: A comparison with other types of Fontan patients. Pediatr Cardiol 1997; 18:357-60. [PMID: 9270104 DOI: 10.1007/s002469900199] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Reports of exercise performance after Fontan surgery for hypoplastic left heart syndrome (HLHS) are lacking. We compared the exercise performance of total cavopulmonary connection type (TCPC) of Fontan subjects with HLHS (group 1, n = 7) to those not requiring a Norwood procedure having a systemic right ventricle (group 2, n = 6) or a systemic left ventricle (group 3, n = 8). The subjects underwent assessment of resting pulmonary mechanics followed by maximal exercise testing with a bicycle or treadmill protocol. ECG, oxygen consumption, and carbon dioxide production were measured continuously. There was not a significant difference seen between HLHS and the comparison groups for the following parameters: maximum heart rate, maximum oxygen consumption, respiratory exchange ratio, breathing reserve, and arterial oxygen saturation at rest or exercise. Exercise performance in the TCPC type of Fontan patients was comparable regardless of ventricular morphology or surgical approach.
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Affiliation(s)
- V M Joshi
- Cardiology Division, Children's Hospital of Michigan, 3901 Beaubien Boulevard, Detroit, MI 48201-2196, USA
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38
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Garner C, Kelly M, Cardon L, Joslyn G, Carey A, LeDuc C, Lichter J, Harris T, Loftus J, Shields G, Comazzi M, Vita A, Smith AM, Dann J, Crow TJ, DeLisi LE. Linkage analyses of schizophrenia to chromosome 6p24-p22: an attempt to replicate. Am J Med Genet 1996; 67:595-610. [PMID: 8950418 DOI: 10.1002/(sici)1096-8628(19961122)67:6<595::aid-ajmg12>3.0.co;2-o] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The present study evaluates evidence for linkage of schizophrenia to chromosome 6p24-p22. An independent sample of 211 families ascertained on the basis of having an affected sib-pair diagnosed with schizophrenia or schizoaffective disorder was assessed with seventeen polymorphic markers spanning a 37cM region. Linkage analysis was performed with parametric and non-parametric methods to test for cosegregation using 4 models of inheritance. Neither two-point nor multipoint non-parametric analyses reached significance at a level less than 0.01 for any markers examined in the region and lod score analyses were not suggestive of linkage. Based on initial findings in the present data set and recently published linkage results, two specific areas were densely covered with markers and tested for linkage disequilibrium. After correcting for multiple comparisons within each locus, no significant deviation from expected allele transmission ratios was observed. The present findings together with the published literature fail to find consistent evidence of a linkage for schizophrenia to a single locus on chromosome 6.
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Affiliation(s)
- C Garner
- Department of Psychiatry & Behavioral Science, S.U.N.Y. at Stony Brook 11794-8101, USA
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39
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Clement K, Garner C, Hager J, Philippi A, LeDuc C, Carey A, Harris TJ, Jury C, Cardon LR, Basdevant A, Demenais F, Guy-Grand B, North M, Froguel P. Indication for linkage of the human OB gene region with extreme obesity. Diabetes 1996; 45:687-90. [PMID: 8621024 DOI: 10.2337/diab.45.5.687] [Citation(s) in RCA: 94] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Obesity is one of the most significant risk factors for hypertension, coronary heart disease, and NIDDM (Frayn KN, Coppack SW: Insulin resistance, adipose tissue and coronary heart disease. Clin Sci 82:1-8, 1992; Kaplan NM: The deadly quartet: upper-body obesity, glucose intolerance, hypertriglyceridemia, and hypertension. Arch Intern Med 149:1514-1520, 1989). While family segregation, adoption, and twin studies have indicated that degree of adiposity has a significant genetic component (Stunkard AJ, Harris JR, Pedersen NL, McClearn GE: The body-mass index of twins who have been reared apart. N Engl J Med 322:1483-1487, 1990; Bouchard C, Despres J-P, Mauriege P: Genetic and nongenetic determinants of regional fat distribution. Endocr Rev 14:72-93, 1993), the genes and predisposing mutations remain poorly understood. This is in contrast to several well-defined genetic models for obesity in rodents, particularly the mouse obese (ob) gene, in which loss-of-function mutations cause severe obesity. Recent studies have demonstrated a substantial reduction in body fat when recombinant ob protein (leptin) is administered to mice. To test the relevance of these observations to human obesity, the location of the human homologue (OB) was established by radiation hybrid mapping and eight microsatellite markers spanning the OB gene region (7q3l.3) were genotyped in 101 obese French families. Affected-sib-pair analyses for extreme obesity, defined by BMI >35 kg/m2, revealed suggestive evidence for linkage to three markers located within 2 cM of the OB gene (D7S514, D7S680, and D7S530). The OB gene is therefore a candidate for genetic predisposition to extreme obesity in a subset of these families.
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Affiliation(s)
- K Clement
- Centre National de la Recherche Scientifique EP 10, Paris, France
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40
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Franks S, White D, Gilling-Smith C, Carey A, Waterworth D, Williamson R. Hypersecretion of androgens by polycystic ovaries: the role of genetic factors in the regulation of cytochrome P450c17 alpha. Baillieres Clin Endocrinol Metab 1996; 10:193-203. [PMID: 8773744 DOI: 10.1016/s0950-351x(96)80057-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A single base change has been found in the promoter region of CYP17, the gene encoding P450c17 alpha, which appears to be a significant factor in the expression of hyperandrogenism in PCO but which can be excluded as the primary genetic defect. These findings are consistent with the biochemical data from the studies of patients with PCOS reported above, in which the production of ovarian 17 hydroxyprogesterone and androstenedione were observed to be greatly increased but the generation of progesterone was also exaggerated in PCO theca. Thus, genetic factors may well be involved in the observed dysregulation of 17 hydroxylase/17,20 lyase, but this does not appear to be the whole story. It remains a tenable hypothesis that a single-gene effect is the major cause of PCOS and that a gene involved in the expression of androgen production will be implicated. On the other hand, increased androgen production may be a reflection of an 'upstream' abnormality in the ovary, perhaps involving the fundamental processes of proliferation, differentiation and atresia in ovarian follicles. It is also possible that PCOS is truly polygenic and that CYP17 is one of several genes-including those related to insulin secretion and action-that contribute to the PCOS phenotype. Further candidate genes will need to be investigated using well-characterized, large families, but if several predisposing genes are involved, other approaches may be applicable, for example analysis of shared alleles by affected sibling pairs, which has proved valuable in understanding the genetics of type 1 diabetes (Davies et al, 1994). In conclusion, PCOS--one of the most common endocrinopathies--remains an enigmatic condition but one which may prove to be an important model for understanding the interaction of genetic and environmental factors in the aetiology of endocrine disorders.
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Affiliation(s)
- S Franks
- Department of Obstetrics & Gynaecology, St. Mary's Hospital Medical School, Imperial College, London, UK
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41
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Abstract
The distribution of warts due to HPV7 in workers in six abattoirs and 103 retail and wholesale butcheries has been studied to determine whether the high prevalence of HPV7 in the meat trade is the result of enhanced person to person transmission, or whether it is a ubiquitous virus which is activated by an unknown factor in meat. Warts were detected in 164 of 486 men. Scrapings were taken from 156 men, and HPV DNA was found in 112 samples, 74 of which contained HPV7. HPV7 was found in 36 workplaces, and there was no evidence of clustering of cases, as would be expected if person to person transmission was occurring in the workplace. This suggests that HPV7 is widely distributed in the community, but only causes clinical disease under specific conditions. We suggest that some unknown factor in meat enhances viral replication.
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Affiliation(s)
- M Keefe
- Department of Dermatology, University of Southampton, Royal South Hants Hospital, Southampton, U.K
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42
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Abstract
Several studies have indicated a high prevalence of hand warts in meat handlers, although the reasons for this are not clear. The high prevalence may be partly due to HPV7, a virus found almost exclusively in meat handlers, but the source of HPV7 is not known. We have carried out a cross-sectional survey of hand warts in male meat workers and controls from other occupational groups, to investigate the reasons for the high prevalence of warts, and particularly of HPV7, in butchers. We studied 240 abattoir workers, 246 retail and wholesale butchers, 308 engineering fitters and 292 office workers. Each subject was interviewed using a standard questionnaire, and his hands were examined by a dermatologist. Scrapings from the warts were tested for HPV1, HPV2 and HPV7 by a polymerase chain reaction method. The prevalence of hand warts was 33.3% in the abattoir workers, 34.1% in the butchers, 19.5% in the engineers and 14.7% in the office workers. Scrapings were taken from 247 of 267 subjects with warts, and HPV DNA was detected in 151 samples. The most common viruses were HPV2 (94 men) and HPV7 (76 men). The excess of warts in meat workers was largely due to HPV7, which was found in only two of the office workers, and was not found in any of the engineers. Logistic regression analysis showed no association between the prevalence of hand warts (or HPV2 and HPV7 specifically) and hand trauma, cold and wet working conditions, smoking, atopy, or handling any particular kind of meat. We suggest that some constituent of animal flesh predisposes to replication of HPV7 in keratinized epithelium.
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Affiliation(s)
- M Keefe
- Department of Dermatology, University of Southampton, Royal South Hants Hospital, Southampton, U.K
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Kelly D, Goldberg R, Wilson D, Lindsay E, Carey A, Goodship J, Burn J, Cross I, Shprintzen RJ, Scambler PJ. Confirmation that the velo-cardio-facial syndrome is associated with haplo-insufficiency of genes at chromosome 22q11. Am J Med Genet 1993; 45:308-12. [PMID: 8434616 DOI: 10.1002/ajmg.1320450306] [Citation(s) in RCA: 133] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The velo-cardio-facial syndrome (VCFS) and DiGeorge sequence (DGS) have many similar phenotypic characteristics, suggesting that in some cases they share a common cause. DGS is known to be associated with monosomy for a region of chromosome 22q11, and DNA probes have been shown to detect these deletions even in patients with apparently normal chromosomes. Twelve patients with VCFS were examined and monosomy for a region of 22q11 was found in all patients. The DNA probes used in this study could not distinguish the VCFS locus and the DGS locus, indicating that the genes involved in these haploinsufficiencies are closely linked, and may be identical. The phenotypic variation of expression in VCFS and DGS may indicate that patients without the full spectrum of VCFS abnormalities but with some manifestations of the disorder may also have 22q11 deletions.
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Affiliation(s)
- D Kelly
- Department of Biochemistry and Molecular Genetics, St. Mary's Hospital Medical School, London, United Kingdom
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44
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Abstract
Diversity exists in both the structure and function of the endothelial cells (EC) that comprise the microvasculature of different organs. Studies of EC have been aided by our ability to first isolate and subsequently establish cultures from microvascularized tissue. After the isolation of microvessel endothelial cells (MEC) derived from rat cerebrum, we observed morphologic differences in colonies of cells that grew in primary cultures. The morphologies ranged from a cobblestone phenotype considered typical of EC in culture to elongated and stellate cell appearances. Serially passaged cell lines were established based on two parameters: initially by growth and, seconds, on differences in primary colony morphology using selective weeding techniques. Each culture was examined for the presence of EC-characteristic markers which include Factor-VIII-related antigen, angiotensin-I-converting enzyme activity, collagen type IV synthesis, and PGI2 production. Variable expression of each of these characteristics among the established EC lines was observed. Growth curves established for each of the EC cultures demonstrated differences in both population doubling rates and cell densities at confluence. The endocytic capacity of each EC line was also evaluated. Our ability to isolate and establish a number of morphologically distinct EC cultures indicates that diversity exists within the EC that comprise the cerebral microvasculature. Diversity in the established cell lines suggests either the EC that line the brain microvasculature exist as a mosaic or that morphologically distinct cultures may originate from different microanatomical origins (arteriolar, true capillary, or venular) or may have resulted from cells at different points in their in vitro life spans at the time of isolation.
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Affiliation(s)
- M A Rupnick
- Department of Physiology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
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45
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Abstract
Persistent perineal sinus is a common complication following proctectomy for inflammatory bowel disease. Complete excision of the sinus tract and obliteration of dead space have been stressed as important aspects of treatment. A patient is described in whom the perineal sinus persisted despite three surgical attempts at cure. Combined perineal exploration and laparotomy revealed a communicating peritoneal-perineal fistula. A combined perineal and peritoneal approach may be indicated in treating the perineal sinus that persists despite perineal excision.
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Affiliation(s)
- W Browder
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA 70112
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46
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Raney B, Carey A, Snyder HM, Duckett JW, Schnaufer L, Rosenberg HK, Mahboubi S, Chatten J, Littman P. Primary site as a prognostic variable for children with pelvic soft tissue sarcomas. J Urol 1986; 136:874-8. [PMID: 3761449 DOI: 10.1016/s0022-5347(17)45109-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
From 1974 to 1983 we treated 16 children between 1 and 16 years old for soft tissue sarcoma arising in the pelvis, bladder or prostate. An incisional biopsy was obtained in every patient. Each child then was treated with a combination chemotherapy program, incorporating vincristine, actinomycin D and cyclophosphamide with or without doxorubicin, cis-platinum and etoposide. Of the 16 patients 13 (81 per cent) also received radiation therapy. In 8 children with urinary obstruction or hematuria sarcomas arose in the bladder or bladder-prostate region, including 7 who had localized tumors and 1 who had lung metastases at diagnosis. The median tumor diameter in these patients was 5 cm. Of these 8 patients 3 eventually required total cystectomy and prostatectomy to eradicate persistent local tumor, and 6 are alive and remain free of recurrent sarcoma for 1 to 9 years after initiation of therapy. The 8 other children had a pelvic mass at diagnosis, which arose adjacent to but outside of the bladder or prostate, and 2 had lung metastases at diagnosis. The median tumor diameter in these patients was 15 cm. Only 3 of these 8 children are alive and remain free of sarcoma for 1 to 8 years after initiation of therapy. In only 1 of these children was complete tumor excision ever possible despite the use of local radiation therapy and aggressive chemotherapy. Sarcomas arising in the bladder-prostate region are found when relatively small, perhaps because they soon produce overt signs, and they appear to have a better prognosis than those arising in the retroperitoneum-pelvis outside the bladder. Better treatment strategies are needed for the latter group of tumors that often are locally uncontrollable.
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47
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Thompson T, Carey A. Structured normalization: intellectual and adaptive behavior changes in a residential setting. Ment Retard 1980; 18:193-197. [PMID: 7242356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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