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Tsafrir A, Holzer H, Miron-Shatz T, Eldar-Geva T, Gal M, Ami IB, Dekel N, Weintruab A, Goldberg D, Schonberger O, Srebnik N, Hyman J. 'Why have women not returned to use their frozen oocytes?': a 5-year follow-up of women after planned oocyte cryopreservation. Reprod Biomed Online 2021; 43:1137-1145. [PMID: 34686418 DOI: 10.1016/j.rbmo.2021.08.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 08/02/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022]
Abstract
RESEARCH QUESTION What are the reproductive choices and retrospective reflections of women at least 4 years after planned oocyte cryopreservation (POC)? DESIGN This was an internet survey, using the REDCap application, of women who underwent POC, at a single-centre university-affiliated IVF unit, 4-8 years before the survey. The questionnaire addressed reproductive choices and outcomes following POC. RESULTS Seventy-nine women who underwent POC during 2011-2014 were invited to participate, and 70 (89%) responded. Mean age at cryopreservation was 37.1 ± 2.4 (range 30-41) years, mean age at study participation 42.6 ± 2.6 (range 35-48) years, and mean time from first cryopreservation cycle to study participation 5.5 ± 1.3 (range 4-8) years. The main retrospectively reported reason for POC was not wanting to become pregnant without a partner (59, 84%). During the follow-up period, 44 women (63%) attempted to conceive either naturally or by assisted reproductive technology using fresh or cryopreserved oocytes. Of those, 28 women achieved a live birth (64% of those who tried to conceive). Fourteen respondents (20% of all respondents) reported using their cryopreserved oocytes, and three (21%) achieved a birth using those oocytes. Fifteen women (34%) of those who tried to conceive used donor spermatozoa. CONCLUSIONS The most common reasons for not using frozen oocytes were achieving pregnancy without frozen oocytes or preferring not to have a child without a partner. A considerable proportion of women who had POC and were not interested in being a single parent by choice eventually try to conceive using donor spermatozoa several years later.
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Affiliation(s)
- A Tsafrir
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel.
| | - H Holzer
- Faculty of Medicine, Hebrew University of Jerusalem, Department of Obstetrics and Gynecology, Hadassah Medical Center Jerusalem, Israel
| | - T Miron-Shatz
- Ono Academic College, Center for Medical Decision Making, Kiryat Ono, Israel; Winton Centre for Risk and Evidence Information, Cambridge University, Cambridge, UK
| | - T Eldar-Geva
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel
| | - M Gal
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel
| | - I Ben Ami
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel
| | - N Dekel
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel
| | - A Weintruab
- IVF Unit, Laniado Medical Center, Netanya, Rappaport Faculty of Medicine, Technion Haifa, Israel
| | - D Goldberg
- Clalit Health Services, Fertility Clinic - Central district, Modi'in Illit, Israel
| | - O Schonberger
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel
| | - N Srebnik
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel
| | - J Hyman
- Faculty of Medicine, Hebrew University of Jerusalem, IVF Unit, Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Jerusalem, Israel
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Tsafrir A, Ben-Ami I, Eldar-Geva T, Gal M, Weintraub A, Goldberg D, Dekel N, Levi H, Schonbeger O, Srebnik N, Nabulsi R, Buhbut I, Hyman J. P–448 Clinical outcome of social oocyte cryopreservation at advanced age. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
What are the success rates of social oocyte cryopreservation (SOC) at advanced age?
Summary answer
In this study, one in four women who underwent SOC above age 35 had a delivery.
What is known already
While SOC is gaining popularity, reports on delivery rates are limited due to low utilization rates.
Study design, size, duration
Retrospective data collection of all woman who underwent SOC between 2011–2018, and presented for treatment using cryopreserved oocytes until January 2021. Participants/materials, setting, methods: Review of patient records (including both IVF and antenatal/postnatal) and laboratory data in a university affiliated hospital-based IVF unit. Main results and the role of chance: A total of 448 women underwent SOC during 2011–2018. 50 (11.2%) women returned to use these oocytes until the end of January 2021. Women who returned to use their oocytes underwent cryopreservation at mean age of 38.2±2.2. 46 (92%) of participants were above 35 at time of cryopreservation. Number of oocytes cryopreserved was 11.3±9.7. Mean time from cryopreservation to thawing was 5.5±1.8years (range 1–9 years). and age at thawing was 43.4±2.1 (range 40–49). Nearly half of patients initially attempted to conceive before using their cryopreserved oocytes, mostly by ART using fresh oocytes. Mean number of oocytes thawed and oocytes survived per women was 9.7±6.2 and 6.1±4.9 respectively (post thawing survival rate 65.4±35%).
Mean number of embryos transferred, at one or more attempts was 2.6±2.1 per women. Eleven women gave birth or had an ongoing pregnancy > 20 weeks at time of analysis. All deliveries resulted from cryopreservation at age 36 and older (delivery rate 23.9% per women). Limitations, reasons for caution: We report our initial experience of women who underwent SOC at a single center. Most women who returned to use their oocytes had undergone SOC at advanced age, therefore not necessarily reflecting outcome for younger patients attempting to preserve fertility using this technology. Wider implications of the findings: Considering modest success rates of SOC in our cohort, women considering SOC are advised to do so at an earlier age.
Trial registration number
Not applicable
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Affiliation(s)
- A Tsafrir
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - I Ben-Ami
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - T Eldar-Geva
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - M Gal
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - A Weintraub
- Laniado Medical Center- and the Rappaport Faculty of Medicine- Technion, IVF unit, Netania, Israel
| | - D Goldberg
- Clalit Health Services, Fertility clinic, Modi’in Illit, Israel
| | - N Dekel
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - H Levi
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - O Schonbeger
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - N Srebnik
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - R Nabulsi
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - I Buhbut
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
| | - J Hyman
- Shaare Zedek Medical Center, IVF Unit- Department of Obstetrics and Gynecology, Jerusalem, Israel
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Xu N, Matsumoto H, Hyman J, Roye B, Kim H, Roye DP. Evaluation of assessment of caregiver experience with neuromuscular disease: reliability and responsiveness of a new caregiver-reported outcome measure in patients with cerebral palsy. Transl Pediatr 2020; 9:507-512. [PMID: 32953548 PMCID: PMC7475311 DOI: 10.21037/tp-19-176] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Cerebral palsy (CP) is the most common cause of chronic childhood disability. Caregivers often provide prolonged care over patients' life span, thus measuring the impact of the disease and its treatments on caregivers has become a recent focus in research. The current study aims to present an evaluation of the reliability and responsiveness of assessment of caregiver experience with neuromuscular disease (ACEND) following botulinum toxin injection to relieve spasticity in children with CP. METHODS Patients with baseline ACEND scores and at least one assessment following botulinum toxin injection were enrolled. Data on their gender, age, diagnoses, and functional levels (according to The Gross Motor Function Classification System, GMFCS), and ACEND scores were analyzed. Statistical analyses performed included paired t-test and linear regression. RESULTS Baseline ACEND scores (117.7±47.7) were strongly correlated with follow-up scores (120.4±49.5) with a coefficient of 0.929 (P<0.001), suggesting the high reliability of the questionnaire. Paired-sample t-test revealed an insignificant average improvement in ACEND of 2.7 (P=0.352). The ICD-10 code and the GMFCS level were found to be significant predictors for baseline (P=0.043, P<0.001) and follow-up ACEND scores (P=0.025, P<0.001). Male gender was a significant predictor for improvement in ACEND scores. CONCLUSIONS We demonstrated the reliability of ACEND through strong correlations of scores before and after botulinum toxin injection. In terms of responsiveness, while the burden of care is largely determined by ICD-10 diagnosis and the GMFCS level, changes in care burden are only related to the gender of the patient and the follow-up time interval.
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Affiliation(s)
- Nanfang Xu
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
| | - Hiroko Matsumoto
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA
| | - Joshua Hyman
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA
| | - Benjamin Roye
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA
| | - Heakyung Kim
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA
| | - David P Roye
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA.,JuniperMD, New York, NY, USA
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Xu N, Matsumoto H, Roye D, Hyman J. Post-Operative Pain Assessment and Management in Cerebral Palsy (CP): A Two-Pronged Comparative Study on the Experience of Surgical Patients. J Pediatr Nurs 2019; 46:e10-e14. [PMID: 30850174 DOI: 10.1016/j.pedn.2019.01.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 01/09/2019] [Accepted: 01/29/2019] [Indexed: 12/18/2022]
Abstract
INTRODUCTION This study compares the current practice patterns of pain assessment and management between children with and without CP following either posterior spinal instrumentation and fusion (PSIF) or hip osteotomy (HO). METHODS Two cohorts of CP patients were retrospectively identified and matched with non-CP patients based on age, surgical procedure, and approach to post-operative pain management. Sixteen CP patients undergoing PSIF and twenty-two undergoing HO were respectively matched with the same numbers of non-CP patients receiving the same procedures. The frequency of assessments conducted, highest pain scores recorded on each post-operative day (POD), and the amount of adjuvant analgesics administered were collected for POD 0-4. RESULTS Patients with CP were significantly more frequently evaluated for pain post-operatively, tended to have lower pain scores as measured by current scales, and received slightly fewer analgesics. Patients with CP differed from their non-CP counterparts in both frequency and method of post-operative pain assessment. CONCLUSIONS The purpose of this study is to elucidate the current state of post-operative pain assessment and management in children with CP undergoing major orthopaedic surgeries, to improve CP patient/caregiver understanding and expectation of the post-operative experience regarding pain, and to provide recommendations for improving the post-operative care for these patients.
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Affiliation(s)
- Nanfang Xu
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China.
| | - Hiroko Matsumoto
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, United States of America
| | - David Roye
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, United States of America
| | - Joshua Hyman
- Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, United States of America.
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Abstract
Low participation rates in government assistance programs are a major policy concern in the United States. This paper studies take-up of Section 8 housing vouchers, a program in which take-up rates are quite low among interested and eligible households. We link 18,109 households in Chicago that were offered vouchers through a lottery to administrative data and study how baseline employment, earnings, public assistance, arrests, residential location, and children's academic performance predict take-up. Our analysis finds mixed evidence of whether the most disadvantaged or distressed households face the largest barriers to program participation. We also study the causal impact of peer behavior on take-up by exploiting idiosyncratic variation in the timing of voucher offers. We find that the probability of lease-up increases with the number of neighbors who recently received voucher offers. Finally, we explore the policy implications of increasing housing voucher take-up by applying reweighting methods to existing causal impact estimates of voucher receipt. This analysis suggests that greater utilization of vouchers may lead to larger reductions in labor market activity. Differences in take-up rates across settings may be important to consider when assessing the external validity of studies identifying the effects of public assistance programs.
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Affiliation(s)
- Eric Chyn
- Department of Economics at the University of Virginia, P.O. Box 400182, Charlottesville, VA 22904-4182
| | - Joshua Hyman
- Department of Public Policy at the University of Connecticut, 10 Front Street, 4th Floor, Hartford, Connecticut 06103
| | - Max Kapustin
- University of Chicago Crime Lab, 33 N. LaSalle Street, Suite 1600, Chicago, Illinois 60602
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Obi CC, Vayla S, de Gannes V, Berres ME, Walker J, Pavelec D, Hyman J, Hickey WJ. The Integrative Conjugative Element clc (ICEclc) of Pseudomonas aeruginosa JB2. Front Microbiol 2018; 9:1532. [PMID: 30050515 PMCID: PMC6050381 DOI: 10.3389/fmicb.2018.01532] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 06/20/2018] [Indexed: 12/13/2022] Open
Abstract
Integrative conjugative elements (ICE) are a diverse group of chromosomally integrated, self-transmissible mobile genetic elements (MGE) that are active in shaping the functions of bacteria and bacterial communities. Each type of ICE carries a characteristic set of core genes encoding functions essential for maintenance and self-transmission, and cargo genes that endow on hosts phenotypes beneficial for niche adaptation. An important area to which ICE can contribute beneficial functions is the biodegradation of xenobiotic compounds. In the biodegradation realm, the best-characterized ICE is ICEclc, which carries cargo genes encoding for ortho-cleavage of chlorocatechols (clc genes) and aminophenol metabolism (amn genes). The element was originally identified in the 3-chlorobenzoate-degrader Pseudomonas knackmussii B13, and the closest relative is a nearly identical element in Burkholderia xenovorans LB400 (designated ICEclc-B13 and ICEclc-LB400, respectively). In the present report, genome sequencing of the o-chlorobenzoate degrader Pseudomonas aeruginosa JB2 was used to identify a new member of the ICEclc family, ICEclc-JB2. The cargo of ICEclc-JB2 differs from that of ICEclc-B13 and ICEclc-LB400 in consisting of a unique combination of genes that encode for the utilization of o-halobenzoates and o-hydroxybenzoate as growth substrates (ohb genes and hyb genes, respectively) and which are duplicated in a tandem repeat. Also, ICEclc-JB2 lacks an operon of regulatory genes (tciR-marR-mfsR) that is present in the other two ICEclc, and which controls excision from the host. Thus, the mechanisms regulating intracellular behavior of ICEclc-JB2 may differ from that of its close relatives. The entire tandem repeat in ICEclc-JB2 can excise independently from the element in a process apparently involving transposases/insertion sequence associated with the repeats. Excision of the repeats removes important niche adaptation genes from ICEclc-JB2, rendering it less beneficial to the host. However, the reduced version of ICEclc-JB2 could now acquire new genes that might be beneficial to a future host and, consequently, to the survival of ICEclc-JB2. Collectively, the present identification and characterization of ICEclc-JB2 provides insights into roles of MGE in bacterial niche adaptation and the evolution of catabolic pathways for biodegradation of xenobiotic compounds.
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Affiliation(s)
- Chioma C Obi
- Department of Biological Sciences, Bells University of Technology, Ota, Nigeria
| | - Shivangi Vayla
- Department of Soil Science, University of Wisconsin-Madison, Madison, WI, United States
| | - Vidya de Gannes
- Department of Food Production, University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Mark E Berres
- Biotechnology Center, University of Wisconsin-Madison, Madison, WI, United States
| | - Jason Walker
- Biotechnology Center, University of Wisconsin-Madison, Madison, WI, United States
| | - Derek Pavelec
- Biotechnology Center, University of Wisconsin-Madison, Madison, WI, United States
| | - Joshua Hyman
- Biotechnology Center, University of Wisconsin-Madison, Madison, WI, United States
| | - William J Hickey
- Department of Soil Science, University of Wisconsin-Madison, Madison, WI, United States
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Bagheri A, Liu XC, Tassone C, Thometz J, Chaloupka A, Tarima S, Cohen L, Simic M, Dennis S, Refshauge K, Pappas E, Parent EC, Pietrosanu M, Redford E, Schmidt S, Hill D, Moreau M, Hedden D, Adeeb S, Lou E, Brink RC, Schlösser TPC, Colo D, Vincken KL, van Stralen M, Hui SCN, Chu WCW, Cheng JCY, Castelein RM, Kechagias V, Grivas TB, Vlasis K, Michas K, Grivas TB, Kechagias V, Vlasis K, Michas K, Tam EMS, Yu FWP, Hung VWY, Shi L, Qin L, Ng BKW, Chu WCW, Griffith J, Cheng JCY, Lam TP, Xue C, Shi L, Hui SCN, Lam TP, Ng BKW, Cheng JCY, Chu WCW, Hui SCN, Pialasse JP, Wong JYH, Lam TP, Ng BKW, Cheng JCY, Chu WCW, Vo QN, Le LH, Lou EHM, Zheng R, Hill DL, Moreau MJ, Hedden DM, Mahood JK, Southon S, Lou E, Brignol A, Cheriet F, Miron MC, Laporte C, Qiu Y, Liu H, Liu Z, Zhu ZZ, Qian BP, Liu X, Rizza R, Thometz J, Rosol D, Tassone C, Tarima S, North P, Zaina F, Pesenti F, Negrini S, Persani L, Capodaglio P, Polli N, Yip BHK, Yu FWP, Hung VWY, Lam TP, Qin L, Ng BKW, Cheng JCY, Zhang J, Lee WYW, Chen H, Tam EMS, Man GC, Lam TP, Ng BKW, Qiu Y, Cheng JCY, Liu H, Liu Z, Zhu Z, Qian BP, Qiu Y, Harasymczuk P, Andrusiewicz M, Janusz P, Biecek P, Kotwicki T, Kotwicka M, Lee JS, Shin JK, Goh TS, Son SM, Chen H, Lee WYW, Zhang J, Tam EMS, Man GCW, Lam TP, Ng BKW, Qiu Y, Cheng JCY, Schwartz M, Gilday S, Bylski-Austrow DI, Glos DL, Schultz L, O’Hara S, Jain VV, Sturm PF, Wang X, Crandall DG, Parent S, Larson N, Labelle H, Aubin CE, Fard NB, Southon S, Moreau M, Hedden D, Duke K, Southon S, Lukenchuk L, Kerslake M, Huynh G, Chorney J, Tsui B, Tobert D, Bakarania P, Berdishevsky H, Grimes K, Matsumoto H, Hyman J, Roye B, Roye D, Vitale M, Black J, Bradley M, Drake S, Glynn D, Maude E, Berdishevsky H, Lindgren A, Bakarania P, Grimes K, Matsumoto H, Feinberg N, Bloom Z, Roye D, Vitale M, Dupuis S, Fortin C, Caouette C, Aubin CÉ, Gur G, Yakut Y, Jevtić N, Schreiber S, Hennes A, Pantović M, de Mauroy JC, Barral F, Pourret S, de Mauroy JC, Barral F, Pourret S, Aulisa AG, Guzzanti V, Galli M, Falciglia F, Aulisa L, Bernard JC, Deceuninck J, Berthonnaud E, Rougelot A, Pickering ME, Chaleat-Valayer E, Webb R, Bettany-Saltikov J, Neil B, Zaina F, Poggio M, Donzelli S, Lusini M, Minnella S, Negrini S, de Mauroy JC, Barral F, Hoang A, Mao S, Shi B, Qian B, Zhu Z, Sun X, Qiu Y, Cobetto N, Aubin CÉ, Parent S, Barch S, Turgeon I, Labelle H, Raihan HMA, Kumar DT, Khasnabis C, Equbal A, Chakraborty AK, Biswas A, Gur G, Dilek B, Ayhan C, Simsek E, Aras O, Aksoy S, Yakut Y, Lou E, Hill D, Zheng R, Donauer A, Tilburn M, Raso J, Morau M, Hedden D, Chen H, Man-Sang W, Cohen L, Kobayashi S, Simic M, Dennis S, Refshauge K, Pappas E, Aslanzadeh F, Parent EC, MacIntosh B, Maragkoudakis EG, Grivas TB, Gelalis ID, Mazioti C, Tsilimidos G, Burwell RG, Zheng Y, Wu XJ, Dang YN, Sun N, Yang Y, Wang T, He CQ, Wong MS, Donzelli S, Martinez G, Negrini A, Zaina F, Negrini S, Matsumoto H, Feinberg N, Shirley M, Swindell H, Bloom Z, Roye DP, Akbarnia BA, Garg S, Sanders JO, Skaggs DL, Smith JT, Vitale MG, Rizza R, Liu X, Thometz J, Lou E, Hill D, Donauer A, Tilburn M, Hedden D, Moreau M, Healy A, Farmer S, Chockalingam N, Aulisa AG, Guzzanti V, Galli M, Pizzetti P, Aulisa L, Maruyama T, Kobayashi Y, Nakao Y, Liu H, Qian BP, Qiu Y, Mao SH, Wang B, Yu Y, Zhu Z, Berdishevsky H, Lindgren AM, Bakarania P, Grimes K, Makhni MC, Shillingford J, Vitale MG, Black J, Maude E, Turland A, Glynn D, Caronni A, Sciumè L, Donzelli S, Zaina F, Negrini S, Schreiber S, Parent EC, Moez EK, Hedden DM, Hill DL, Moreau M, Lou E, Watkins EM, Southon SC, Parent EC, Schreiber S, Moez EK, Sloan P, Hedden D, Moreau M, Hill D, Southon S, Watkins E, Parent EC, Ghaneei M, Adeeb S, Schreiber S, Moreau M, Hedden D, Hill D, Southon S, Karavidas N, Dritsa D, Bettany-Saltikov J, Hanchard N, Kim D, Kim J, Sbihli A, Parent E, Levey L, Holowka M, Davis L, Dolan LA, Weinstein SL, Larson JE, Meyer MA, Boody B, Sarwark JF, Schreiber S, Parent EC, Hedden DM, Hill DL, Thometz J, Liu X, Rizza R, Tassone C, Liu X, Gundlach B, Tarima S, Grant A, Kalyan R, Hekal W, Honeyman C, Cook T, Murray S, Pitruzzella M, Donzelli S, Zaina F, Negrini S, de Mauroy JC, Barral F, Pourret S, de Mauroy JC, Barral F, Pourret S, Grimes K, Feinberg N, Hope J, Berdishevsky H, Bakarania P, Matsumoto H, Swindell H, Yoshimachi J, Roye D, Vitale M, Touchette J, St-Jean A, Brousseau D, Marcotte L, Théroux J, Doucet C, Lin Y, Wong MS, MacMahon J, MacMahon E, Boyette J, Stikeleather L, Lebel A, Lebel VA, Pancholi-Parekh CA, Stolze L, Selthafner M, Hong K, Liu X, Thometz J, Tassone C, Morrison PR, Hanke TA, Knott P, Krumdick ND, Chockalingam N, Shannon T, Davenhill R, Needham R, Jasani V, Ahmed EN, St-Jean A, Touchette J, Drake S, Brousseau D, Marcotte L, Théroux J, Doucet C, Aulisa AG, Guzzanti V, Gordano M, Mastantuoni G, Aulisa L, Chandrinos M, Grivas TB, Kechagias V, Głowka P, Gaweł D, Kasprzak B, Nowak M, Morzyński M, Kotwicki T, Deceuninck J, Bernard JC, Lecante C, Berthonnaud E, Fortin C, Aubin-Fournier JF, Bettany-Saltikov J, Parent EC, Feldman DE, Bernard JC, Liu Z, Zhang W, Hu Z, Zhu W, Jin M, Han X, Qiu Y, Cheng JCY, Zhu Z, Liu Z, Guo J, Wu T, Qian B, Zhu Z, Zhu F, Jiang J, Qiu Y, Han X, Liu Z, Liu H, Qiu Y, Guo J, Yan H, Sun X, Cheng JCY, Zhu Z, Di Felice F, Zaina F, Pitruzzella M, Donzelli S, Negrini S, Needham RA, Chatzistergos P, Chockalingam N, Brink RC, Schlösser TPC, Colo D, Vincken KL, van Stralen M, Hui SCN, Chu WCW, Cheng JCY, Castelein RM, Bylski-Austrow DI, Glos DL, Jain VV, Reynolds JE, Sturm PF, Wall EJ, Igoumenou VG, Megaloikonomos PD, Tsiavos K, Panagopoulos GN, Mavrogenis AF, Grivas TB, Soultanis K, Papagelopoulos PJ, Fard NB, Duke K, Chan A, Parent EC, Lou E, Lee JS, Shin JK, Goh TS, Son SM, Kobayashi S, Togawa D, Hasegawa T, Yamato Y, Oe S, Banno T, Mihara Y, Matsuyama Y. 13th International Conference on Conservative Management of Spinal Deformities and First Joint Meeting of the International Research Society on Spinal Deformities and the Society on Scoliosis Orthopaedic and Rehabilitation Treatment – SOSORT-IRSSD 2016 meeting. Scoliosis 2017. [PMCID: PMC5461518 DOI: 10.1186/s13013-017-0124-0] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Tighe S, Afshinnekoo E, Rock TM, McGrath K, Alexander N, McIntyre A, Ahsanuddin S, Bezdan D, Green SJ, Joye S, Stewart Johnson S, Baldwin DA, Bivens N, Ajami N, Carmical JR, Herriott IC, Colwell R, Donia M, Foox J, Greenfield N, Hunter T, Hoffman J, Hyman J, Jorgensen E, Krawczyk D, Lee J, Levy S, Garcia-Reyero N, Settles M, Thomas K, Gómez F, Schriml L, Kyrpides N, Zaikova E, Penterman J, Mason CE. Genomic Methods and Microbiological Technologies for Profiling Novel and Extreme Environments for the Extreme Microbiome Project (XMP). J Biomol Tech 2017; 28:31-39. [PMID: 28337070 DOI: 10.7171/jbt.17-2801-004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The Extreme Microbiome Project (XMP) is a project launched by the Association of Biomolecular Resource Facilities Metagenomics Research Group (ABRF MGRG) that focuses on whole genome shotgun sequencing of extreme and unique environments using a wide variety of biomolecular techniques. The goals are multifaceted, including development and refinement of new techniques for the following: 1) the detection and characterization of novel microbes, 2) the evaluation of nucleic acid techniques for extremophilic samples, and 3) the identification and implementation of the appropriate bioinformatics pipelines. Here, we highlight the different ongoing projects that we have been working on, as well as details on the various methods we use to characterize the microbiome and metagenome of these complex samples. In particular, we present data of a novel multienzyme extraction protocol that we developed, called Polyzyme or MetaPolyZyme. Presently, the XMP is characterizing sample sites around the world with the intent of discovering new species, genes, and gene clusters. Once a project site is complete, the resulting data will be publically available. Sites include Lake Hillier in Western Australia, the "Door to Hell" crater in Turkmenistan, deep ocean brine lakes of the Gulf of Mexico, deep ocean sediments from Greenland, permafrost tunnels in Alaska, ancient microbial biofilms from Antarctica, Blue Lagoon Iceland, Ethiopian toxic hot springs, and the acidic hypersaline ponds in Western Australia.
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Affiliation(s)
- Scott Tighe
- Advanced Genomics Lab, University of Vermont Cancer Center, University of Vermont, Burlington, Vermont, USA
| | - Ebrahim Afshinnekoo
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York, USA; School of Medicine, New York Medical College, Valhalla, New York, USA
| | - Tara M Rock
- Center for Genomics and Systems Biology, New York University, New York, New York, USA
| | - Ken McGrath
- Australian Genome Research Facility, Gehrmann Labs, University of Queensland, St Lucia, QLD, Australia
| | - Noah Alexander
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York, USA
| | - Alexa McIntyre
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York, USA
| | - Sofia Ahsanuddin
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York, USA
| | - Daniela Bezdan
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York, USA
| | - Stefan J Green
- DNA Services Facility, Research Resources Center, University of Illinois, Chicago, Illinois, USA
| | - Samantha Joye
- Marine Sciences, The University of Georgia, Athens, Georgia, USA
| | | | - Don A Baldwin
- Signal Biology Inc., Philadelphia, Pennsylvania, USA
| | - Nathan Bivens
- DNA Core Facility, University of Missouri, Columbia, Missouri, USA
| | - Nadim Ajami
- Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, Texas, USA; Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Joseph R Carmical
- Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, Texas, USA; Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Ian Charold Herriott
- Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Rita Colwell
- Center for Bioinformatics and Computational Biology, University of Maryland Institute for Advanced Computer Studies, College Park, Maryland, USA
| | - Mohamed Donia
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, USA
| | - Jonathan Foox
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York, USA; Department of Invertebrate Zoology, American Museum of Natural History, New York, New York, USA
| | | | - Tim Hunter
- Advanced Genomics Lab, University of Vermont Cancer Center, University of Vermont, Burlington, Vermont, USA
| | - Jessica Hoffman
- Advanced Genomics Lab, University of Vermont Cancer Center, University of Vermont, Burlington, Vermont, USA
| | - Joshua Hyman
- UW Biotechnology Center, University of Wisconsin - Madison, Madison, Wisconsin, USA
| | | | - Diana Krawczyk
- Greenland Institute of Natural Resources, Greenland Climate Research Centre, Nuuk, Greenland
| | - Jodie Lee
- Molecular Diagnostics, Qiagen, Germantown, Maryland, USA
| | - Shawn Levy
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, USA
| | - Natàlia Garcia-Reyero
- Institute for Genomics, Biocomputing, and Biotechnology, Mississippi State University, US Army Engineer Research & Development Center, Vicksburg, Mississippi, USA
| | - Matthew Settles
- Genome Center, University of California-Davis, Davis, California, USA
| | - Kelley Thomas
- Hubbard Center for Genome Studies, University of New Hampshire, Durham, New Hampshire, USA
| | - Felipe Gómez
- Department of Planetology and Habitability, Centro de Astrobiología (CSIC-INTA), Carretera de Ajalvir, Torrejon de Ardoz, Madrid, Spain
| | - Lynn Schriml
- Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, USA; Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Nikos Kyrpides
- Department of Energy, Joint Genome Institute, Walnut Creek, California, USA
| | - Elena Zaikova
- Department of Biology, Georgetown University, Washington, DC, USA
| | - Jon Penterman
- Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Christopher E Mason
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, New York, USA; The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, New York, USA
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Liberty G, Hyman J, Friedler S, Anteby E, Margalioth E. High rates of abnormalities in hysterosalpingography in couples with male factor infertility. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog17652014] [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: 11/01/2022]
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Liberty G, Hyman J, Friedler S, Anteby EY, Margalioth EJ. High rates of abnormalities in hysterosalpingography in couples with male factor infertility. CLIN EXP OBSTET GYN 2014; 41:415-418. [PMID: 25134288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The rate of anatomical abnormalities in infertile couples with obvious male factor is unknown. For this purpose the authors retrospectively analyzed 376 hysterosalpingographies (HSG) of couples with severe male factor. Patients were subdivided into four groups according to the woman's age, and primary or secondary infertility: A--less than 35-years-old, primary infertility, B--less than 35-years-old, secondary infertility, C--35-years-old or more, primary infertility, and D--35-years-old or more, secondary infertility. Overall, abnormalities in HSG were demonstrated in 25.5% of the patients, and in 18, 21, 52, and 40 percent of patients in groups A, B, C and D, respectively. Age was found to be a significant independent risk factor (p < 0.05) while primary or secondary infertility was not. The adjusted odds ratio for woman who were 35-years-old or more to have any abnormalities in HSG were 3.7-fold greater (95% CI 2.2- 6.23), than women who were less than 35-years-old. In conclusion, relatively high rates of female mechanical abnormalities may be found even in infertile couples with obvious male factor and are significantly more prevalent in older women.
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Gigante P, McDowell MM, Bruce SS, Chirelstein G, Chiriboga CA, Dutkowsky J, Fontana E, Hyman J, Kim H, Morgan D, Pearson TS, Roye BD, Roye DP, Ryan P, Vitale M, Anderson RCE. Reduction in upper-extremity tone after lumbar selective dorsal rhizotomy in children with spastic cerebral palsy. J Neurosurg Pediatr 2013; 12:588-94. [PMID: 24116982 DOI: 10.3171/2013.9.peds12591] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Randomized clinical trials have established that lumbar selective dorsal rhizotomy (SDR) reduces lower-extremity tone and improves functional outcome in children with spastic cerebral palsy. Significant data exist to support a secondary effect on upper-extremity function in patients with upper-extremity spasticity. The effects of SDR on upper-extremity tone, however, are not well characterized. In this report, the authors sought to assess changes in upper-extremity tone in individual muscle groups after SDR and tried to determine if these changes could be predicted preoperatively. METHODS The authors retrospectively reviewed 42 children who underwent SDR at Columbia University Medical Center/Morgan Stanley Children's Hospital of NewYork-Presbyterian between 2005 and 2011. Twenty-five had upper-extremity spasticity. All underwent pre- and postoperative examination for measuring tone (Modified Ashworth Scale) and assessing functional outcome. Follow-up examinations with therapists were performed at least once at a minimum of 2 months postoperatively (mean 15 months). RESULTS In the upper extremities, 23 (92%) of 25 patients had improvements of at least 1 Ashworth point in 2 or more independent motor groups on the Modified Ashworth Scale, and 12 (71%) of 17 families surveyed reported increases in motor control or spontaneous movement. The mean Modified Ashworth Scale scores for all upper-extremity muscle groups demonstrated an improvement from 1.34 to 1.22 (p < 0.001). Patients with a mean preoperative upper-extremity tone of 1.25-1.75 were most likely to benefit from reduction in tone (p = 0.0019). Proximal and pronator muscle groups were most likely to demonstrate reduced tone. CONCLUSIONS In addition to improvements in lower-extremity tone and function, SDR has demonstrable effects on upper extremities. Greater than 90% of our patients with elevated upper-extremity tone demonstrated reduction in tone in at least 2 muscle groups postoperatively. Patients with a mean Modified Ashworth Scale upper-extremity score of 1.25-1.75 may encounter the greatest reduction in upper-extremity tone.
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Affiliation(s)
- Paul Gigante
- Department of Neurological Surgery, Columbia University; and
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Zhu H, Senalik D, McCown BH, Zeldin EL, Speers J, Hyman J, Bassil N, Hummer K, Simon PW, Zalapa JE. Mining and validation of pyrosequenced simple sequence repeats (SSRs) from American cranberry (Vaccinium macrocarpon Ait.). Theor Appl Genet 2012; 124:87-96. [PMID: 21904845 DOI: 10.1007/s00122-011-1689-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 08/17/2011] [Indexed: 05/02/2023]
Abstract
The American cranberry (Vaccinium macrocarpon Ait.) is a major commercial fruit crop in North America, but limited genetic resources have been developed for the species. Furthermore, the paucity of codominant DNA markers has hampered the advance of genetic research in cranberry and the Ericaceae family in general. Therefore, we used Roche 454 sequencing technology to perform low-coverage whole genome shotgun sequencing of the cranberry cultivar 'HyRed'. After de novo assembly, the obtained sequence covered 266.3 Mb of the estimated 540-590 Mb in cranberry genome. A total of 107,244 SSR loci were detected with an overall density across the genome of 403 SSR/Mb. The AG repeat was the most frequent motif in cranberry accounting for 35% of all SSRs and together with AAG and AAAT accounted for 46% of all loci discovered. To validate the SSR loci, we designed 96 primer-pairs using contig sequence data containing perfect SSR repeats, and studied the genetic diversity of 25 cranberry genotypes. We identified 48 polymorphic SSR loci with 2-15 alleles per locus for a total of 323 alleles in the 25 cranberry genotypes. Genetic clustering by principal coordinates and genetic structure analyzes confirmed the heterogeneous nature of cranberries. The parentage composition of several hybrid cultivars was evident from the structure analyzes. Whole genome shotgun 454 sequencing was a cost-effective and efficient way to identify numerous SSR repeats in the cranberry sequence for marker development.
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Affiliation(s)
- H Zhu
- Department of Horticulture, University of Wisconsin, Madison, WI, USA
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Abstract
Physician assistants (PAs) have medical training and work supervised by a doctor. In 2006-2008 the Scottish Government piloted use of USA-trained PAs. The aim of the paper is to evaluate the impact and contribution made by PAs to delivering effective health care in National Health Service (NHS) Scotland. Mixed methods, longitudinally, including interviews, feedback forms and activity data collection. Data analysis used nVivo, SPSS and Excel. Participants were 15 USA-trained PAs, medical supervisors and team members, 20 patients, four NHS senior managers and three trade union representatives. Settings were four Scottish NHS Boards where PAs worked in primary care, out of hours clinics, emergency medicine, intermediate care and orthopaedics. Two minor patient safety issues arose. Patients were satisfied with PAs. Scope of practice did not replicate US working. Inability to prescribe was a hindrance. PAs tended to have longer consultations, but provided continuity and an educational resource. They were assessed to be mid-level practitioners approximating to nurse practitioner or generalist doctor. Valued features were generalism, medical background, confidence differential diagnosis and communication. Interviewees suggested PAs could fulfil roles currently filled by medical staff, potentially saving resources. In conclusion, there is potential for PAs to fulfil distinctive mid-level roles in the Scottish NHS adding value in continuity, communication and medical approach.
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Affiliation(s)
- J Farmer
- Chair of Rural Health Policy & Management, Centre for Rural Health, UHI Millennium Institute, The Centre for Health Science, Perth Road, Inverness IV2 3JH, UK
| | - M Currie
- Research Fellow, Centre for Rural Health, UHI Millennium Institute, The Centre for Health Science, Perth Road, Inverness IV2 3JH, UK
| | - J Hyman
- University of Aberdeen Business School, Edward Wright Building, Dunbar Street, Aberdeen, UK
| | - C West
- Clinical Services Manager (Primary Care), NHS Highland, Argyll and Bute Community Health Partnership, Oban, UK
| | - N Arnott
- Tweeddale Medical Practice, Fort William Health Centre, Camaghael, Fort William, UK
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Liberty G, Gal M, Halevy-Shalem T, Michaelson-Cohen R, Galoyan N, Hyman J, Eldar-Geva T, Vatashsky E, Margalioth E. Lidocaine–Prilocaine (EMLA) cream as analgesia for hysterosalpingography: a prospective, randomized, controlled, double blinded study. Hum Reprod 2007; 22:1335-9. [PMID: 17234675 DOI: 10.1093/humrep/del517] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The aim of our study is to evaluate the efficacy of applying lidocaine 25 mg-prilocaine-25 mg/G cream (EMLA 5%) on the uterine cervix for pain relief when performing hysterosalpingography (HSG). METHODS Eighty-two patients undergoing HSG as part of infertility evaluation were randomized into groups receiving EMLA (42) or placebo cream (40) in a double-blinded prospective study from which four women were later excluded. The cream was applied to the uterine cervix by means of a cervical cup 30 min before the HSG. Pain perception related to the HSG procedure was scored by visual analogue scale (VAS) at five predefined steps: after speculum application, after cervical instrumentation of the tenaculum and cannula, at the end of uterine filling, at completion of tubal spillage, and immediately following instrument removal. In addition, the patients were asked to retrospectively rate the pain during the entire procedure in a telephone interview the following day. RESULTS Cervical instrumentation was found to be the most painful step of HSG (P < 0.001). When comparing the VAS pain scores, cervical instrumentation in the EMLA-treated patients was associated with significantly less pain than the control group: 3.3 +/- 2.9 versus 4.9 +/- 2.7, respectively (P = 0.02). CONCLUSIONS Topical application of EMLA 5% cream on the uterine cervix before performing HSG significantly reduced the pain during this procedure.
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Affiliation(s)
- G Liberty
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Jerusalem.
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Abstract
UNLABELLED Salivary fistulas after head and neck microvascular reconstruction are difficult problems whose treatment remains controversial. Although aggressive, early operative intervention has been suggested by some groups, we have found that many patients respond to conservative management with bedside debridement and aggressive local wound care. The purpose of this study was, therefore, to review our experience with the management of postoperative salivary fistulas. METHODS A retrospective review was performed and all patients who developed a salivary fistula after microvascular head and neck reconstruction over a 7-year period at Memorial Sloan-Kettering Cancer Center were identified and evaluated. RESULTS Six hundred thirty-seven patients underwent reconstruction during the study period. Of these, 35 patients developed a postoperative salivary fistula (5.4%). The majority of patients (81%) who developed fistulas shortly after the index procedure (<30 days) were successfully treated with conservative management. Similarly, 50% of late salivary fistulas (>30 days) responded to bedside debridement and wound care. There were no significant differences in the rate of total flap loss, carotid artery blowout, delay in onset of adjuvant radiation therapy (>6 weeks), or return to oral feeds between the conservative and operatively managed groups. CONCLUSIONS Aggressive surgical intervention in early postoperative salivary fistulas is usually not necessary, although the treatment plan should be individualized. Bedside debridement and aggressive wound care are adequate in most cases of early salivary fistulas. This approach is not associated with an increased rate of complications.
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Affiliation(s)
- Joshua Hyman
- Division of Plastic and Reconstructive Surgery and the Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
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Affiliation(s)
- Benjamin D Roye
- Division of Pediatric Orthopaedics, Beth Israel Medical Center, New York, NY, USA
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Abstract
Biliary obstruction due to a proximal bile duct stricture is commonly a result of cholangiocarcinoma. We describe a patient who began having intermittent episodes of jaundice 3 years after cholecystectomy. Despite endoscopic placement of a biliary stent and adequate biliary decompression, the serum CA 19-9 level remained elevated at 58 U/ml (normal <37 U/ml). Segmental bile duct resection and Roux-en-Y hepaticojejunostomy were done. The stricture was caused by a traumatic bile duct neuroma. Diagnostic and therapeutic considerations of this entity are discussed, with special emphasis on the value of noninvasive biliary imaging by magnetic resonance imaging (MRI), the utility and interpretation of the CA 19-9 level, and the role for resection or surgical biliary decompression.
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Affiliation(s)
- Joshua Hyman
- Department of General Surgical Oncology, City of Hope National Medical Center, Duarte, CA, USA
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Sledge JB, Allred D, Hyman J. Use of magnetic resonance imaging in evaluating injuries to the pediatric thoracolumbar spine. J Pediatr Orthop 2001; 21:288-93. [PMID: 11371807] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Magnetic resonance imaging (MRI) of acute thoracolumbar spinal injuries allows excellent evaluation of the neurologic and soft tissue structures. Owing to recent advances in imaging techniques that permit greater spatial resolution and more detailed imaging of tissue, MRI now affords effective visualization of injury to the ligaments, intervertebral disk, bones, and spinal cord after spine trauma. Cord changes have been classified into three patterns that are predictive of clinical outcomes in adults with cord injuries. The value of MRI in evaluating pediatric patients with thoracolumbar injuries or in predicting their clinical outcome has not been assessed. After retrospectively reviewing 19 pediatric thoracolumbar fractures associated with neurologic deficits from three level 1 trauma centers, we conclude that MRI is the imaging modality of choice in these patients because it can accurately classify injury to bones and ligaments and because the cord patterns as determined by MRI have predictive value.
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Affiliation(s)
- J B Sledge
- Department of Orthopaedics, Boston Medical Center, Boston, Massachusetts 02118, USA.
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Abstract
Valgus instability of the elbow in athletes is uncommon among athletes in general, but has a higher incidence in individuals who throw repetitively. When valgus overload injury results in disabling symptoms for the athlete, surgical reconstruction of the anterior band of the ulnar collateral ligament may be indicated. This procedure has been successful in getting athletes back to premorbid levels of competition. The authors provide a comprehensive review of valgus instability of the elbow and offer their preferred method of treatment.
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Affiliation(s)
- J Hyman
- Sports Medicine and Shoulder Service, Hospital for Special Surgery, Cornell University Medical Center, New York, New York, USA
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Lan TH, DelMonte TA, Reischmann KP, Hyman J, Kowalski SP, McFerson J, Kresovich S, Paterson AH. An EST-enriched comparative map of Brassica oleracea and Arabidopsis thaliana. Genome Res 2000; 10:776-88. [PMID: 10854410 PMCID: PMC310908 DOI: 10.1101/gr.10.6.776] [Citation(s) in RCA: 136] [Impact Index Per Article: 5.7] [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: 11/25/2022]
Abstract
A detailed comparative map of Brassica oleracea and Arabidopsis thaliana has been established based largely on mapping of Arabidopsis ESTs in two Arabidopsis and four Brassica populations. Based on conservative criteria for inferring synteny, "one to one correspondence" between Brassica and Arabidopsis chromosomes accounted for 57% of comparative loci. Based on 186 corresponding loci detected in B. oleracea and A. thaliana, at least 19 chromosome structural rearrangements differentiate B. oleracea and A. thaliana orthologs. Chromosomal duplication in the B. oleracea genome was strongly suggested by parallel arrangements of duplicated loci on different chromosomes, which accounted for 41% of loci mapped in Brassica. Based on 367 loci mapped, at least 22 chromosomal rearrangements differentiate B. oleracea homologs from one another. Triplication of some Brassica chromatin and duplication of some Arabidopsis chromatin were suggested by data that could not be accounted for by the one-to-one and duplication models, respectively. Twenty-seven probes detected three or more loci in Brassica, which represent 25.3% of the 367 loci mapped in Brassica. Thirty-one probes detected two or more loci in Arabidopsis, which represent 23.7% of the 262 loci mapped in Arabidopsis. Application of an EST-based, cross-species genomic framework to isolation of alleles conferring phenotypes unique to Brassica, as well as the challenges and opportunities in extrapolating genetic information from Arabidopsis to Brassica and to more distantly related crops, are discussed.
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Affiliation(s)
- T H Lan
- Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas 77843 USA
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Hyman J, Rodeo SA. Injury and repair of tendons and ligaments. Phys Med Rehabil Clin N Am 2000; 11:267-88, v. [PMID: 10810761] [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: 02/16/2023]
Abstract
Tendons and ligaments are fibrous connective tissues that facilitate stability and motion of joints. Significant dysfunction and disability may result from suboptimal healing of tendon and ligament injuries. Extensive research continues to further understand the complex healing pathways that are involved when these structures are damaged. The combination of advances in tissue engineering, surgery, and rehabilitation will provide new pathways of improving tendon and ligament healing.
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Affiliation(s)
- J Hyman
- Sports Medicine and Shoulder Service, Hospital for Special Surgery, Joan and Sanford I. Weill Medical College of Cornell University, New York, New York, USA
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Abstract
OBJECTIVE To determine the limits of the distal synovial reflection of the human knee joint. SPECIMENS Six paired knees studied by magnetic resonance imaging (MRI), fluoroscopic arthrography, and gross dissection. The right knees of five patients with chronic idiopathic knee effusions were studied by MRI. Cadaveric knees were injected with saline prior to MRI. The joint capsules were dissected to visualize local anatomy and check for capsular tears. In each modality (MRI, fluoroscopy, and dissection), the most distal extent of knee synovial fluid was measured. RESULTS The right versus left agreement for paired specimens was generally two to three millimeters. Some specimens showed asymmetric capsular reflection. Medial fluid was identified at distances greater than forty-nine millimeters from the subchondral bone in seven knees and less than fifteen millimeters in four knees (range 0 to 70 millimeters, mean thirty-three millimeters). Laterally, the range was ten to thirty-five millimeters (mean twenty-three millimeters). In six of the twelve cadaveric specimens, there was evidence of a communication between the knee joint and the proximal tibiofibularjoint. In the knees of volunteers, joint fluid tracked medially to a range of ten to fifty millimeters and laterally to a range of six to fifteen millimeters, with means of twenty-six and eleven millimeters, respectively. The knees of the volunteers had no evidence of tibiofibular joint communication with the knee. CONCLUSION Insertion of external fixation pins within sixty to seventy millimeters of the proximal articular surface of the tibia is associated with a high probability of synovial penetration and possibly provides a conduit for the introduction of bacteria, which may be etiologic in iatrogenic pyarthrosis.
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Affiliation(s)
- J Hyman
- The Hospital for Special Surgery, Cornell University Medical Center, New York, New York, USA
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Hyman J, Baron JA, Dain BJ, Sandler RS, Haile RW, Mandel JS, Mott LA, Greenberg ER. Dietary and supplemental calcium and the recurrence of colorectal adenomas. Cancer Epidemiol Biomarkers Prev 1998; 7:291-5. [PMID: 9568783] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The association between calcium intake and the risk of colorectal neoplasia remains controversial. This analysis prospectively investigated the association between dietary and supplemental calcium intake and recurrent colorectal adenomas. Participants were part of a multicenter, randomized clinical trial of antioxidant vitamins. The study endpoints were adenomas detected between surveillance colonoscopies conducted at approximately 1 year and 4 years after study entry. Baseline intake of energy-adjusted calcium derived from a food frequency questionnaire was used as the main exposure of interest. Calcium supplement use was assessed by semiannual questionnaires. Logistic regression was used to compute odds ratios and 95% confidence limits, and Poisson regression was used to estimate rate ratios. Subjects in the fifth quintile of dietary calcium had an adjusted odds ratio of 0.72 (95% confidence interval, 0.43-1.22) compared to those in the lowest quintile. Investigation of the numbers of adenomas yielded stronger findings: the rate ratio for the fifth quintile versus the first was 0.63 (95% confidence interval, 0.39-1.02). Dietary calcium seemed to have a greater effect among individuals with a high-fat diet than among those with a low-fat diet; however, the interaction was not statistically significant. Use of calcium supplements was not related to adenoma recurrence. These results suggest that a high calcium intake may be associated with a reduction in risk of recurrent adenomas, especially among individuals on a high-fat diet.
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Affiliation(s)
- J Hyman
- Dartmouth Medical School, Hanover, New Hampshire 03755-3861, USA
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Hyman J. Chiropractic rehabilitation. J Bodyw Mov Ther 1997. [DOI: 10.1016/s1360-8592(97)80059-9] [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: 11/29/2022]
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Abstract
States that in recent years, empowerment of National Health Service (NHS) Trust employees has been given substantial political and managerial support. Examines the extent to which the commitment and morale of staff in two NHS Trust hospitals has altered following the introduction of a raft of techniques under the empowerment label. The researchers interviewed substantial numbers of staff with managerial responsibilities, personnel specialists and conducted written surveys seeking employee opinion. Reports the findings, which confirm that, under empowerment, the work of both managers and staff has become more intensive, but managers claim that their commitment has risen, while for non-managerial employees, severe problems of commitment to the Trust, declining morale and high stress were exposed. Identifies reasons for these difficulties which were: the salience of budgetary and operational priorities; lack of training; resistance to the implementation of empowerment; and recognition that little real authority was being devolved to employees. Concludes that the limited effects attributable to empowerment could be explained by its association with harder-edged manpower policies introduced to meet financial and competitive pressures. Under favourable contextual conditions, empowerment may exert more positive effects.
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Abstract
BACKGROUND Little is known about the prevalence, risk factors, and transmission of hepatitis C virus (HCV) in a nontransfused population, particularly in developing countries. STUDY DESIGN AND METHODS To investigate the association between HCV seropositivity and some demographic variables, a case-control study was conducted on 138 seropositive donors among 4762 consecutive volunteer blood donors and 1101 seronegative controls in Rio de Janeiro, Brazil. Donors were initially screened by interview for male homosexuality, use of illicit drugs, tattoos, previous transfusions, venereal diseases, and jaundice. Eligible donors were then tested for HCV antibodies by enzyme-linked immunosorbent assay. A multivariate analysis was performed on age, ethnic group, gender, and prior donation. RESULTS The overall prevalence of HCV seropositivity was 2.89 percent. An increased risk of seropositivity was demonstrated for nonwhite donors at an odds ratio of 2.11 (95% CI, 1.43-3.13), for males at 2.39 (95% CI, 1.01-5.7), and for prior donors at 1.66 (95% CI, 1.09-2.52). The risk of anti-HCV positivity increased markedly with age. Those at highest risk were the group 40 to 49 years old, with an odds ratio of 4.37 (95% CI, 2.39-7.99) versus the group 20 to 29 years old. The group under 20 years old showed an odds ratio of 0.50 (95% CI, 0.06-3.87) compared to the group 20 to 29 years old. These findings were equally significant in a univariate analysis. CONCLUSION Our results suggest that HCV seropositivity is strongly associated with male sex, nonwhite ethnicity, and greater age. A significant number of seropositive donors were not detected by screening interview.
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Affiliation(s)
- F Patiño-Sarcinelli
- School of Hygiene and Public Health, Johns Hopkins University, Baltimore, Maryland
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Swanson SK, Larson TR, Begun FP, Lamm DL, Fuchs EF, Hyman J, Huffman JL. Clinical trials of the Northgate SD-3 dual-purpose lithotriptor for renal calculi. J Urol 1992; 148:1047-51. [PMID: 1507328 DOI: 10.1016/s0022-5347(17)36813-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 12/27/2022]
Abstract
The Northgate SD-3 is a bathless, portable shock wave lithotriptor made in the United States. It uses ultrasound localization and spark-gap, electrode-generated shock waves to fragment calculi in the upper urinary tract. Since October 1987, 312 treatments have been performed on 281 patients (286 kidneys) with stone burdens less than 2 cm. during clinical trials at 6 investigational sites in the United States. A fragmentation rate of 94% was achieved. Of the treatments 78% were judged successful (stone-free or fragments of less than 5 mm. remaining in an asymptomatic patient) and a 3-month stone-free rate of 58% was noted. The retreatment rate was 9% and the ancillary procedure rate was 5%. The complications (hematuria, ecchymosis, pain, obstruction) were mild and not unlike those seen in patients undergoing lithotripsy with other devices.
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Affiliation(s)
- S K Swanson
- Section of Urology, Mayo Clinic Scottsdale, Arizona 85259
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Hyman J. Medicare physicians reimbursement. Ala Med 1990; 59:11-9. [PMID: 2205092] [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: 12/30/2022]
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Abstract
Labeling theory predicts that psychotic patients who accept the label of mental illness will function less well than those who reject their diagnosis. Accepted psychotherapeutic theory suggests the reverse. Two predictive models were tested. Results supported the central hypothesis of the psychotherapeutic model but not that of the labeling model, although some elements of the latter model were affirmed. Besides acceptance of diagnosis, an internal locus of control appears important for good outcome in psychosis.
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Affiliation(s)
- R Warner
- Department of Psychiatry, University of Colorado Health Sciences Center, Denver
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Hyman J. The dodo you save may be your own. Ala Med 1984; 54:9-10, 13. [PMID: 6150629] [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: 01/18/2023]
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Berman CL, Silbert GR, Hyman J, Jaffin RA. Diabetic retinopathy. J Am Dent Assoc 1984; 108:734. [PMID: 6588113 DOI: 10.14219/jada.archive.1984.0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Abstract
A procedure is described for determining the preferential killing of DNA repair-deficient E. coli. Dilute suspensions of DNA repair-proficient and -deficient bacteria are exposed to a graded series of test chemical concentrations. Survivors are determined by enumeration on agar plates. An expression used to express preferential killing (or lack thereof) is shown to be dose-dependent and potentially useful for determining genotoxic potencies.
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McCoy E, Hyman J, Rosenkranz HS. A new mutagenic and genotoxic response of the flame retardant tris(2,3-dibromopropyl)phosphate. Activation by singlet oxygen. Mutat Res 1980; 77:209-14. [PMID: 6991918 DOI: 10.1016/0165-1218(80)90052-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Illumination of tris (2,3-dibromopropyl)phosphate with visible light in the presence of riboflavin resulted in the formation of a stable product with greatly enhanced genetic and DNA-modifying activities. Because illumination of riboflavin results in the formation of short-lived singlet oxygen, it is assumed that the mutagenic and genotoxic chemical results from a reaction between the flame retardant and singlet oxygen. Since the polluted urban atmosphere is conducive to the generation of this species of oxygen, the present results may, therefore, be relevant to an assessment of the health hazard posed by such an environment.
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Abstract
Xeoradiography has gained limited use in oral surgery and orthodontics. Its wide exposure latitude, detailed image, and low operating costs recommend its use in general dentistry. In studies on real and simulted hard-tissue lesions, it was found to be slightly superior to conventional radiography in the detection of small lesions. When intraoral plates are marketed and low-KVP techniques are perfected, xeroradiography could assume an important role in dental radiology.
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