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Crowe AD, Sánchez JM, Moore SG, McDonald M, Rodrigues R, Morales MF, Orsi de Freitas L, Randi F, Furlong J, Browne JA, Rabaglino MB, Lonergan P, Butler ST. Fertility in seasonal-calving pasture-based lactating dairy cows following timed artificial insemination or timed embryo transfer with fresh or frozen in vitro-produced embryos. J Dairy Sci 2024; 107:1788-1804. [PMID: 37806631 DOI: 10.3168/jds.2023-23520] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023]
Abstract
The objective was to compare pregnancy per service event (P/S) in lactating dairy cows following timed artificial insemination (AI) or timed embryo transfer (ET) using either fresh or frozen in vitro-produced embryos. Oocytes were collected once per week for up to 9 wk using transvaginal ovum pick-up from elite dairy donors (ET-DAIRY; n = 40; Holstein-Friesian and Jersey) and elite beef donors (ET-ELITE-BEEF; n = 21; Angus). Both ET-DAIRY and ET-ELITE-BEEF donors consisted of heifers and cows. In addition, oocytes were collected from the ovaries of beef heifers of known pedigree following slaughter at a commercial abattoir (ET-COMM-BEEF; n = 119). Following in vitro maturation and fertilization, presumptive zygotes were cultured in vitro to the blastocyst stage. Grade 1 blastocysts were either transferred fresh or frozen for on-farm thawing and direct transfer. A total of 1,106 recipient cows (all lactating, predominantly Holstein-Friesian) located on 16 herdlets were blocked based on parity, calving date, and Economic Breeding Index, and randomly assigned to receive AI (n = 243) or ET (n = 863) after estrous synchronization with a 10-d Progesterone-synch protocol. Cows assigned to ET were further randomized to receive fresh (n = 187) or frozen (n = 178) ET-ELITE-BEEF embryos, fresh (n = 169) or frozen (n = 162) ET-DAIRY embryos, or fresh (n = 80) or frozen (n = 87) ET-COMM-BEEF embryos. Pregnancy was diagnosed using transrectal ultrasound on d 32 to 35 after synchronized ovulation and confirmed on d 62 to 65, at which time fetal sex was determined. Pregnancy per service event at d 32 was not different between AI (48.8%) and ET (48.9%) and did not differ between dairy and beef embryos (50.3% vs. 48.1%, respectively). However, P/S was less on d 32 following transfer of frozen embryos (41.6%) compared with fresh embryos (56.1%). Pregnancy loss between d 32 and 62 was greater for ET (15.1%) compared with AI (4.7%), with greater losses observed for frozen beef (18.5%), fresh beef (17.3%), and frozen dairy (19.2%) compared with fresh dairy (6.0%) embryos. Serum progesterone (P4) concentration on d 7 was associated with P/S at d 32 and 62. Cows in the quartile with the least serum P4 concentrations (quartile 1) had less probability of being pregnant on d 32 (33.4%) compared with cows in the 3 upper quartiles for serum P4 (45.7%, 55.6%, and 61.2% for quartile 2, quartile 3, and quartile 4, respectively). Sex ratio (male:female) at d 62 was skewed toward more male fetuses following ET (61.1:38.9) compared with AI (43.2:56.8) and was consistent with the sex ratio among in vitro blastocysts (61.2:38.8). In conclusion, P/S was similar for AI and ET, although pregnancy loss between d 32 and 62 was greater for ET than for AI.
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Affiliation(s)
- A D Crowe
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996; School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | - J M Sánchez
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5; Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28040, Madrid, Spain
| | - S G Moore
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996
| | - M McDonald
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | | | | | | | - F Randi
- CEVA Santé Animale, Libourne, Bordeaux, 33500, France
| | - J Furlong
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin, 4, Ireland
| | - J A Browne
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | - M B Rabaglino
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | - P Lonergan
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5.
| | - S T Butler
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996.
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López de Munain J, Cámara Pérez MDM, López Martinez M, Alava Menica JA, Hernandez Ragpa L, Imaz Pérez M, Teijeiro Pulido MJ, Mojas Díez I, de la Peña Trigueros M, Díaz de Tuesta Del Arco JL, Muñoz Sánchez J. Alarming incidence of reinfections after treatment for Chlamydia trachomatis and gonorrhoea: Can we predict and prevent them? Enferm Infecc Microbiol Clin (Engl Ed) 2023; 41:269-277. [PMID: 36610838 DOI: 10.1016/j.eimce.2021.10.010] [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] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/14/2021] [Indexed: 05/06/2023]
Abstract
BACKGROUND Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections are a public health problem, worsened by frequent reinfections, whose incidence rate is not known in Spain. The objective of this study is to estimate in patients diagnosed with NG, CT or mixed infection (NG and CT): (1) the incidence of reinfections by the same microorganism, (2) the total incidence of Sexually Transmitted Infections (STI), both by the same microorganism and by infections other than the initial one, and (3) to identify predictors of reinfection. METHODS Observational prospective case series involving 986 patients with CT and/or NG at specialized STI clinics in Biscay (Spain) between 2016 and 2019. RESULTS The six month cumulative incidence of reinfection by the same microorganism was 17.24% (CI95%: 14.9-19.7) and 24.65% (CI95%: 21.9-27.4) for any STI (reinfection or other). Being an immigrant (OR=1.8; CI95%: 1.3-2.6), men who have sex with men (OR=1.8; CI95%: 1.3-2.6), number of sexual partners (OR=4.3; CI95%: 2.7-6.8 for more than 5 partners), having a new partner (OR=1.7; CI95%: 1.08-2.6), not always using a condom (OR=1.4; CI95%: 1.02-1.9) and consumption of alcohol prior to sex (OR=3.8; CI95%: 1.5-9.5) were associated with reinfection by any STI. CONCLUSION These characteristics allow doctors to identify patients in whom to prioritize short-term rescreening for repeated infections with any STIs after initial treatment for NG or CT.
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Affiliation(s)
- Josefina López de Munain
- Infectious Diseases Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain; Biocruces-Bizkaia Research Institute, Barakaldo, Bizkaia, Spain.
| | - Maria Del Mar Cámara Pérez
- Infectious Diseases Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Miriam López Martinez
- Infectious Diseases Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Jose Angel Alava Menica
- Clinic Microbiology and Infection Control Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Leonora Hernandez Ragpa
- Clinic Microbiology and Infection Control Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Manuel Imaz Pérez
- Clinic Microbiology and Infection Control Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Maria José Teijeiro Pulido
- Infectious Diseases Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Iker Mojas Díez
- Infectious Diseases Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Mireia de la Peña Trigueros
- Infectious Diseases Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Jose Luis Díaz de Tuesta Del Arco
- Clinic Microbiology and Infection Control Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain
| | - Josefa Muñoz Sánchez
- Infectious Diseases Service, Bilbao-Basurto Integrated Care Organization (Osakidetza-Basque Health Service), Bilbao, Spain; Biocruces-Bizkaia Research Institute, Barakaldo, Bizkaia, Spain
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Lonergan P, Beltman M, Butler ST, Crowe MA, Evans ACO, Fair T, Fair S, Forde N, Gasparrini B, Kenny DA, Miyamoto A, Sánchez JM. Editorial: Recent scientific advances in reproduction and fertility in ruminants: an overview of the 11th International Ruminant Reproduction Symposium, Galway, Ireland, 2023. Animal 2023; 17 Suppl 1:100903. [PMID: 37567677 DOI: 10.1016/j.animal.2023.100903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 06/29/2023] [Indexed: 08/13/2023] Open
Affiliation(s)
- P Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland.
| | - M Beltman
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - S T Butler
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - M A Crowe
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - A C O Evans
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - T Fair
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - S Fair
- Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, Ireland
| | - N Forde
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - B Gasparrini
- Department of Veterinary Medicine and Animal Production, University of Naples Federico 13 II, Naples, Italy
| | - D A Kenny
- Teagasc, Animal and Grassland Research and Innovation Centre, Grange, Dunsany, Co. Meath, Ireland
| | - A Miyamoto
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - J M Sánchez
- Andalusian Institute of Agriculture and Fisheries Research and Training (IFAPA), Hinojosa del Duque, Córdoba, Spain
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O'Callaghan E, Sánchez JM, Rabaglino MB, McDonald M, Liu H, Spencer TE, Fair S, Kenny DA, Lonergan P. 118 Influence of sire fertility status on conceptus-induced transcriptomic response of the bovine endometrium. Reprod Fertil Dev 2021; 34:296. [PMID: 35231255 DOI: 10.1071/rdv34n2ab118] [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: 11/23/2022] Open
Affiliation(s)
- E O'Callaghan
- University College Dublin, Belfield, Dublin, Ireland
| | - J M Sánchez
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
| | - M B Rabaglino
- University College Dublin, Belfield, Dublin, Ireland
| | - M McDonald
- University College Dublin, Belfield, Dublin, Ireland
| | - H Liu
- University of Missouri, Division of Animal Sciences, Columbia, MO, USA
| | - T E Spencer
- University of Missouri, Division of Animal Sciences, Columbia, MO, USA
| | - S Fair
- University of Limerick, Laboratory of Animal Reproduction, School of Natural Sciences, Biomaterials Research Cluster, Bernal Institute, Faculty of Science and Engineering, Limerick, Ireland
| | - D A Kenny
- Teagasc, Animal and Grassland Research and Innovation Centre, Grange, Dunsany, Meath, Ireland
| | - P Lonergan
- University College Dublin, Belfield, Dublin, Ireland
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López de Munain J, Cámara Pérez MDM, López Martinez M, Alava Menica JA, Hernandez Ragpa L, Imaz Pérez M, Teijeiro Pulido MJ, Mojas Díez I, de la Peña Trigueros M, Díaz de Tuesta del Arco JL, Muñoz Sánchez J. Alarming incidence of reinfections after treatment for Chlamydia trachomatis and gonorrhoea: Can we predict and prevent them? Enferm Infecc Microbiol Clin 2021. [DOI: 10.1016/j.eimc.2021.10.013] [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: 10/19/2022]
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Crowe AD, Sánchez JM, Moore SG, McDonald M, Rodrigues R, Morales MF, Orsi de Freitas L, Randi F, Lonergan P, Butler ST. 78 Fertility in lactating dairy cows following timed artificial insemination or timed embryo transfer with fresh or frozen in vitro-produced embryos. Reprod Fertil Dev 2021; 34:275. [PMID: 35231206 DOI: 10.1071/rdv34n2ab78] [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: 11/23/2022] Open
Affiliation(s)
- A D Crowe
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - J M Sánchez
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - S G Moore
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - M McDonald
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | | | | | | | - F Randi
- CEVA Santé Animale, Libourne, Bordeaux, France
| | - P Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - S T Butler
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
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Suárez-García I, Ruiz-Algueró M, García Yubero C, Moreno C, Belza MJ, Estébanez M, de Los Santos I, Masiá M, Samperiz Abad G, Muñoz Sánchez J, Omar M, Jarrín I. Physicians' opinions on generic antiretroviral drugs and single-tablet regimen de-simplification for the treatment of HIV infection: a multicentre survey in Spain. J Antimicrob Chemother 2021; 75:466-472. [PMID: 31665404 DOI: 10.1093/jac/dkz439] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES To assess the attitudes and opinions about generic antiretroviral drugs (ARVs) and single-tablet regimen (STR) de-simplification among physicians prescribing HIV treatment in the cohort of the Spanish HIV/AIDS Research Network (CoRIS). METHODS An online questionnaire with 27 structured questions was sent to all physicians (n=199) who prescribed ARVs among the 45 centres participating in the cohort. RESULTS A total of 169 (84.9%) physicians answered the questionnaire. Only 4.1% of the physicians would never prescribe generic ARVs, but 53.3% would not prescribe them if the number of pills per day increased and 89.3% would not prescribe them if the number of doses per day increased. However, 84.0% of the physicians agreed to prescribe generic ARVs if doing so would decrease costs for the public healthcare system. The percentages of physicians stating that generic ARVs (compared with branded ones) would be associated with worse adherence, more adverse effects or more probability of virological failure, provided that the number of pills and doses per day would not change, were low: 0.6%, 7.7% and 3.6%, respectively. However, these percentages were much higher if the generic ARV entailed breaking an STR: 63.9%, 18.9% and 42.0%, respectively. Most physicians stated that they needed more information about the effectiveness and safety of generic ARVs and the price difference compared with their branded equivalents. CONCLUSIONS Although most physicians were confident about prescribing generic ARVs, the majority had strong concerns about de-simplifying STR, and they also needed more information about generic drugs.
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Affiliation(s)
- Inés Suárez-García
- Infectious Diseases Group, Department of Internal Medicine, Hospital Universitario Infanta Sofía, Madrid, Spain.,Facultad de Ciencias Biomédicas, Universidad Europea, Madrid, Spain
| | - Marta Ruiz-Algueró
- National Epidemiology Centre, Instituto de Salud Carlos III, Madrid, Spain
| | | | - Cristina Moreno
- National Epidemiology Centre, Instituto de Salud Carlos III, Madrid, Spain
| | - María José Belza
- National School of Health, Instituto de Salud Carlos III, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Madrid, Spain
| | - Miriam Estébanez
- Infectious Diseases Unit, Department of Internal Medicine, Hospital Universitario 'Gómez Ulla', Madrid, Spain.,Facultad de Medicina, Universidad de Alcalá de Henares, Madrid, Spain
| | | | - Mar Masiá
- Infectious Diseases Unit, Hospital General Universitario de Elche, Alicante, Spain
| | | | - Josefa Muñoz Sánchez
- Department of Infectious Diseases, Hospital Universitario Basurto, Bizkaia, Spain
| | - Mohamed Omar
- Infectious Diseases Unit, Complejo Hospitalario de Jaén, Jaén, Spain
| | - Inma Jarrín
- National Epidemiology Centre, Instituto de Salud Carlos III, Madrid, Spain
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O'Callaghan E, Sánchez JM, McDonald M, Kelly AK, Hamdi M, Maicas C, Fair S, Kenny DA, Lonergan P. Sire contribution to fertilization failure and early embryo survival in cattle. J Dairy Sci 2021; 104:7262-7271. [PMID: 33714587 DOI: 10.3168/jds.2020-19900] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 11/11/2020] [Accepted: 01/28/2021] [Indexed: 12/21/2022]
Abstract
Despite passing routine laboratory tests of semen quality, bulls used in artificial insemination (AI) exhibit a significant range in field fertility. The objective of this study was to determine whether subfertility in AI bulls is due to issues of sperm transport to the site of fertilization, fertilization failure, or failure of early embryo or conceptus development. In experiment 1, Holstein-Friesian bulls (3 high fertility, HF, and 3 low fertility, LF) were selected from the national population of AI bulls based on adjusted fertility scores from a minimum of 500 inseminations (HF: +4.37% and LF: -12.7%; mean = 0%). Superovulated beef heifers were blocked based on estimated number of follicles at the time of AI and inseminated with semen from HF or LF bulls (n = 3-4 heifers per bull; total 19 heifers). Following slaughter 7 d later, the number of corpora lutea was counted and the uteri were flushed. Recovered structures (oocytes/embryos) were classified according to developmental stage and stained with 4',6-diamidino-2-phenylindole to assess number of cells and accessory sperm. Overall recovery rate (total structures recovered/total corpora lutea) was 52.6% and was not different between groups. Mean (± standard error of the mean) number of embryos recovered per recipient was 8.7 ± 5.2 and 9.4 ± 5.5 for HF and LF, respectively. Overall fertilization rate of recovered structures was not different between groups. However, more embryos were at advanced stages of development (all blastocyst stages combined), reflected in a greater mean embryo cell number on d 7 for HF versus LF bulls. Number of accessory sperm was greater for embryos derived from HF than for LF bulls. The aim of experiment 2 was to evaluate the effect of sire fertility on survival of bovine embryos to d 15. Day 7 blastocysts were produced in vitro using semen from the same HF (n = 3) and LF (n = 3) bulls and transferred in groups of 5-10 to synchronized heifers (n = 7 heifers per bull; total 42 heifers). Conceptus recovery rate on d 15 was higher in HF (59.4%,) versus LF (45.0%). Mean length of recovered conceptuses for HF bulls was not affected by fertility status. In conclusion, while differences in field fertility among AI sires used in this study were not reflected in fertilization rate, differences in embryo quality were apparent as early as d 7. These differences likely contributed to the higher proportion of conceptuses surviving to d 15 in HF bulls.
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Affiliation(s)
- E O'Callaghan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland D04 N2E5
| | - J M Sánchez
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland D04 N2E5
| | - M McDonald
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland D04 N2E5
| | - A K Kelly
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland D04 N2E5
| | - M Hamdi
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland D04 N2E5
| | - C Maicas
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland D04 N2E5
| | - S Fair
- Laboratory of Animal Reproduction, Department of Biological Sciences, Biomaterials Research Cluster, Bernal Institute, Faculty of Science and Engineering, University of Limerick, Limerick, Ireland V94 PT85
| | - D A Kenny
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Meath, Ireland C15 PW93
| | - P Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland D04 N2E5.
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9
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Lonergan P, Sánchez JM. Symposium review: Progesterone effects on early embryo development in cattle. J Dairy Sci 2020; 103:8698-8707. [PMID: 32622590 DOI: 10.3168/jds.2020-18583] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 03/24/2020] [Accepted: 04/29/2020] [Indexed: 12/14/2022]
Abstract
The causes of low fertility in dairy cattle are complex and multifactorial and may be due to compromised follicle development affecting oocyte quality, a suboptimal reproductive tract environment incapable of supporting normal embryo development, or a combination of both. Progesterone (P4) plays a key role in reproductive events associated with establishment and maintenance of pregnancy, through its effects on oocyte quality and its action on the uterine endometrium. Reduced P4 concentrations during growth of the ovulatory follicle are associated with lower fertility, and low concentrations of circulating P4 after ovulation have been associated with reductions in conceptus growth and elongation, decreased interferon-τ (IFNT) production, and lower pregnancy rates in cattle. In contrast, elevated concentrations of circulating P4 in the period immediately following conception have been associated with advancement of conceptus elongation, increased IFNT production, and, in some cases, higher pregnancy rates in cattle. Despite the potential beneficial effects of exogenous P4 supplementation on fertility, results of supplementation studies have been inconsistent. As part of the 2019 ADSA Reproduction Symposium, focusing on the etiology of pregnancy losses in dairy cattle, the aim of this review is to highlight recent findings from our group and others in relation to embryo-maternal interaction during bovine pregnancy establishment and the role of P4 in uterine biology and embryo development.
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Affiliation(s)
- P Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland.
| | - J M Sánchez
- School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
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Abstract
Reciprocal herkogamy (heterostyly) is an example of extreme relevance of accuracy of the location of the sexual organs within some floral systems. It involves the reciprocal positioning of anthers and stigmas in flowers of different plants within the same population, and the accuracy of this positioning is important to promote out-cross pollination, prevent self-interference, or both. Hence, several indices have been proposed to quantify reciprocity, most of them for populations with two different morphs (distylous). Here, we propose an extension of our index of reciprocity for distylous populations to be applied also to populations with three morphs (tristylous), allowing effective comparisons of reciprocity between tristylous, but also distylous populations. As for the distylous version, the index is based on comparison of the position of every single sexual organ in the sample with each and every organ of the opposite sex, for each of the three possible organ levels. Due to the massive amount of calculations required, a macro was developed that is available as Supplementary Information and at the website of the authors. The index and macro were tested on several hypothetical tristylous and distylous populations with predetermined mean and dispersion of sexual organs at each level, as well as on several actual tristylous and distylous populations. The index proposed is a solid tool for the study of reciprocity in distylous and tristylous populations. Comparisons between distylous and tristylous populations are easily performed and can be readily interpreted. The applicability of the index is facilitated through the software provided.
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Affiliation(s)
- J M Sánchez
- Department of Plant Biology and Soil Sciences, Faculty of Biology, University of Vigo, Vigo, Spain.
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11
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Rubio O, Sánchez JM, Fernández R. [Life-sustaining treatment limitation criteria upon admission to the intensive care unit: results of a Spanish national multicenter survey]. Med Intensiva 2012; 37:333-8. [PMID: 22959596 DOI: 10.1016/j.medin.2012.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 06/15/2012] [Accepted: 06/16/2012] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To determine the life-sustaining treatment limitation (LSTL) predisposition upon patient admission to the intensive care unit (ICU), the criteria upon which such predisposition is based, and whether these decisions are related to structural factors of the surveyed hospitals. DESIGN A descriptive multicenter study was made in 2010, involving the conduction of a survey in 90 hospitals, with a view to documenting the usual practice referred to LSTL upon admission in these centers. SETTING Spanish ICUs. INTERVENTION Opinion survey. MAIN VARIABLES OF INTEREST Type of hospital, number of hospital beds, ICU and semicritical patient beds, usual bed availability in the ICU, use of restrictive admission criteria, use of LSTL criteria upon admission, and type of criterion used to decide LSTL. RESULTS A total of 43 (48%) hospitals participated in the study, with LSTL being a common practice in these centers (93%). LSTL was fundamentally decided on the basis of the presence of prior severe chronic disease (95%), observation of previously declared patient will (95%), prior functional limitation (85%), and qualitative futility of care (82%). Frequent ICU bed availability (77% of the hospitals) and the use of restrictive criteria (79% of the hospitals) were also associated to patient admission with LSTL. CONCLUSIONS Admission to ICU with LSTL is a generalized practice in Spanish Hospitals. LSTL is decided based on physiological futility from an objective medical point of view, but also in observance of ethical and moral implications based on the qualitative futility of medical care.
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Affiliation(s)
- O Rubio
- Servicio de Medicina Intensiva, Hospital Sant Joan de Déu, Manresa, Barcelona, España.
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Sánchez JM, Ferrero V, Arroyo J, Navarro L. Patterns of style polymorphism in five species of the South African genus Nivenia (Iridaceae). Ann Bot 2010; 106:321-31. [PMID: 20576739 PMCID: PMC2908166 DOI: 10.1093/aob/mcq111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 04/08/2010] [Accepted: 04/20/2010] [Indexed: 05/23/2023]
Abstract
BACKGROUND AND AIMS Heterostylous plants have been characterized by the presence of two or three discrete morphs that differ in their sex organ position within populations. This polymorphism is widely distributed among the angiosperms, but detailed studies are limited to few taxonomic groups. Although a small representation, evolutionary meaningful variations of the heterostylous syndrome have been reported when precise measurements of the sexual whorls were taken. A thorough exploration of groups where heterostyly has been reported should offer new opportunities to further testing the evolutionary hypotheses explaining heterostyly. Here, the traits defining heterostyly were explored in half of the species in Nivenia, the only genus of Iridiaceae where heterostyly has been reported. METHODS Detailed morphometric analysis of the flower sexual whorls and some traits considered as ancillary are supplied to determine for each population (a) the kind of stylar polymorphism, (b) the morph ratio and (c) the degree of reciprocity between sexual whorls. Also the rates of assortative (within morph) versus disassortative (between morphs) pollen transfer were estimated by analysing pollen loads on stigmas. The association between floral phenotypic integration and the reciprocity between sexual whorls was estimated; both characteristics have been quoted as dependent on the accuracy of the fit between pollinators and flowers and therefore related to the efficiency of pollen transfer. KEY RESULTS Different types of polymorphism, differing in their degree of reciprocity, were found in Nivenia. Effective disassortative mating appears to be common, since (a) all dimorphic populations show equal morph-ratios (isoplethy), and (b) the pollen placed on the stigmas of each morph is likely to be coming from the other (complementary) morph. The most reciprocal populations of the heterostylous species have also the highest values of phenotypical integration. CONCLUSIONS Stigma height dimorphism, as opposed to distyly, is proven for the first time in Nivenia. The presence of different types of polymorphism within the genus is consistent with hypotheses of the evolution of heterostyly. The role of the pollinators as the leading force of the transition seems to be apparent, since floral integration is related to reciprocity.
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Affiliation(s)
- J M Sánchez
- Departamento de Biología Vegetal y Ciencia del Suelo, Universidad de Vigo, Spain.
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13
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Zambudio G, Guirao MJ, Sánchez JM, Girón O, Ruiz JI, Gutiérrez MA. [Nonsurgical correction of congenital auricular deformities a new method of neonatal molding and splinting]. Cir Pediatr 2007; 20:139-142. [PMID: 18018739] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
INTRODUCTION The utility of the nonsurgical correction of congenital auricular deformities by ear molding and splinting has been previously established. Occasionally, its application cannot be easy, and the later collaboration of the parents is necessary. We report a new method of splinting that simplifies the procedure. DESIGN prospective, case series. PATIENTS AND METHODS Twenty ears in 15 patients between 7 and 60 days of age (average 22 days) were treated. They were 12 prominent ears, 4 Stahl's ears, 2 lop ears, 1 Crinkled ear, and 1 case of increase of antihelix folder. Cotton impregnated with 2-Octyl-Cyanoacrylate is placed as splint for 6 weeks. RESULTS The bilateral application lasted less than 5 minutes, end there were no spills to the external auditory canal. The splint was given off to the 2 weeks, and a second procedure was necessary in all the cases. There were no dermatitis or skin ulcers. The treatment was successful in 11 cases, partial improvement in 3, poor correction in 4, and recurrence in 2. CONCLUSIONS The splint therapy is an easy nonsurgical method for the treatment of congenital auricular deformities that applied during the first weeks of life provides good aesthetic results in more than 50% of the patients.
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Affiliation(s)
- G Zambudio
- Servicio de Cirugía Pediátrica, Hospital Universitario Virgen de la Arrixaca, Murcia.
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Zambudio G, Ruiz JI, Guirao MJ, Sánchez JM, Girón O, Gutiérrez MA. [Anterior approach otoplasty for treatment of prominent ears in children. A minimally invasive technique]. Cir Pediatr 2007; 20:119-21. [PMID: 17650724] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
INTRODUCTION In adult patients, it has been reported that prominent ears can be treated by mattress sutures placed through the anterior aspect of the ear, with a minimally invasive technique. In order to verify the utility of this method in children, we used this technique in our patients. MATERIAL AND METHODS Twenty-two prominent ears were treated in 12 patients between 8 and 11 years of ages. All were operated under general anesthesia. The anterior surface of the auricular cartilage is scored with a rasp. The antihelix shape is obtained, and mattress sutures are placed through the anterior surface of the ear. RESULTS A good aesthetic result was obtained in all the cases. Superficial skin necrosis happened in three. Partial loss of correction in the superior pole was noted in four ears. In 6, some knots were visible through the skin. CONCLUSIONS This repair is a simple technique for the treatment of the prominent ears in children, of good aesthetic results, that it avoids the necessity of dorsal skin resection and produces folds of antihelix more naturally curved. In children, to avoid the exteriorization of the suture material, the knots must be placed in the posterior surface of de auricular cartilage.
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Affiliation(s)
- G Zambudio
- Servicio de Cirugía Pediátrica, Hospital Universitario Virgen de la Arrixaca, Murcia.
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Rojo A, Campos Y, Sánchez JM, Bonaventura I, Aguilar M, García A, González L, Rey MJ, Arenas J, Olivé M, Ferrer I. NARP-MILS syndrome caused by 8993 T>G mitochondrial DNA mutation: a clinical, genetic and neuropathological study. Acta Neuropathol 2006; 111:610-6. [PMID: 16525806 DOI: 10.1007/s00401-006-0040-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [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: 10/02/2005] [Revised: 12/29/2005] [Accepted: 12/30/2005] [Indexed: 12/01/2022]
Abstract
The 8993 T>G mutation in mitochondrial DNA has been associated with variable syndromes of differing severity ranging from maternally inherited Leigh's syndrome (MILS) to neuropathy, ataxia, retinitis pigmentosa (NARP), depending on the mutation loads in affected patients. We report a kindred with several members in the same generation suffering NARP or Leigh's syndrome due to a 8993 T>G mutation. Post-mortem studies of the brain in one affected member clinically presenting with a neurological disorder intermediate between adult Leigh's syndrome and NARP showed symmetrical lesions of the basal ganglia and brainstem closely resembling those usually described in typical Leigh's syndrome. Analysis of mtDNA in different tissues showed a high proportion of mutant genome in brainstem, cerebral cortex, putamen, cerebellum and thalamus. These observations illustrate the continuum of clinical and neuropathological manifestations associated with the 8993 T>G mutation of the mtDNA.
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Affiliation(s)
- A Rojo
- Neurology Services, Hospital Mútua de Terrassa, and University of Barcelona, Spain
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16
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García P, Carrillo A, Fernández A, Sánchez JM. [Risk factors in experimenting with and consumption of tobacco by 12-14 year-old school students. Attitudes to tobacco in pressure groups]. Aten Primaria 2006; 37:392-9. [PMID: 16733021 PMCID: PMC7679900 DOI: 10.1157/13087382] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Tobacco is the first addictive substance that adolescents and school-children have contact with. The presence of family members and friends as smokers in their environment is related to tobacco experimentation. OBJECTIVES To describe experimentation and consumption of tobacco in secondary school students (ESO); to identify the attitudes related to smoking; and to study the relationship between smoking by family members, friends and teachers and students' own experimentation and consumption. METHODS Observational, prospective study at the "Los Cantos" secondary school, Bullas, Murcia, Spain. POPULATION students from the first, second and third years of ESO, analysed in December 2000 and 2001. The variables studied were collected with the FRISC questionnaire. RESULTS The population had 529 students, 293 of them boys, with average age 13.2. A total of 328 had smoked sometime (62%) and 19.1% smoked habitually. Attitudes related with smoking were: "smoking makes you feel better" (P<.001), "smoking is fun" (P<.001), "smoking helps to make friends" (P<.001) and "I'd accept a cigarette from a friend" (P<.001). Tobacco experimentation was related to friends/companions smoking (OR=2.402; 95% CI, 1.591-3.628), to the presence of a mother and older siblings smoking (OR=2.703; 95% CI, 1.574-4.642), and to the presence of friends/companions smoking (OR=6.342; 95% CI, 3.102-12.964). CONCLUSION Experimentation and consumption of tobacco in the population studied is very high. The most important risk factors for students smoking are the conduct of friends and of older siblings.
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Affiliation(s)
- P García
- Unidad de Investigación y Calidad, Hospital J.M. Morales Meseguer, Murcia, España.
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Prieto C, Rivas MJ, Sánchez JM, López-Fidalgo J, De Las Rivas J. Algorithm to find gene expression profiles of deregulation and identify families of disease-altered genes. Bioinformatics 2006; 22:1103-10. [PMID: 16500942 DOI: 10.1093/bioinformatics/btl053] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [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
MOTIVATION Alteration of gene expression often results in up- or down-regulated genes and the most common analysis strategies look for such differentially expressed genes. However, molecular disease mechanisms typically constitute abnormalities in the regulation of genes producing strong alterations in the expression levels. The search for such deregulation states in the genomic expression profiles will help to identify disease-altered genes better. RESULTS We have developed an algorithm that searches for the genes which present a significant alteration in the variability of their expression profiles, by comparing an altered state with a control state. The algorithm provides groups of genes and assigns a statistical measure of significance to each group of genes selected. The method also includes a prefilter tool to select genes with a threshold of differential expression that can be set by the user ad casum. The method is evaluated using an experimental set of microarrays of human control and cancer samples from patients with acute promyelocytic leukemia.
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Affiliation(s)
- C Prieto
- Bioinformatics and Functional Genomics Research Group, Cancer Research Center (CIC USAL-CSIC), Salamanca, Spain
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Affiliation(s)
- A de Hoyos
- Department of Gastroenterology, Hospital Angeles del Pedregal, Mexico City, Mexico.
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Díez M, Bleda MJ, Alcaide J, Castells C, Cardenal JI, Domínguez A, Gayoso P, Guitiérrez G, Huerta C, López MJ, Moreno T, Muñoz F, García-Fulgueiras A, Picó M, Pozo F, Quirós JR, Robles F, Sánchez JM, Vanaclocha H, Vega T. Determinants of health system delay among confirmed tuberculosis cases in Spain. Eur J Public Health 2005; 15:343-9. [PMID: 16014664 DOI: 10.1093/eurpub/cki010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [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: 11/13/2022] Open
Abstract
BACKGROUND Health system delay (HSD) is an important issue in tuberculosis (TB) control. This report investigates HSD and associated factors in a cohort of Spanish culture-confirmed TB patients. METHODS Data were collected from clinical records. Using logistic regression with two different cut-off points to define HSD (median and 75th percentile), adjusted odds ratios were used to estimate the association between HSD and different variables. RESULTS A total of 5184 culture-confirmed TB cases were included. Median and 75th percentile HSD were 6 and 25 days respectively. HSD significantly greater than the median was associated with: age >44 years, past or present intravenous drug use, diagnosis at a primary-care centre, prior preventive therapy, positive histology, request for drug-sensitivity testing, presence of silicosis or neoplasia in addition to TB, presence of non-TB related symptoms, and gastrointestinal site. HSD greater than the 75th percentile was related to the same variables, with the exception of diagnosis at a primary-care centre, positive histology, silicosis, non-TB-related symptoms and gastrointestinal site, for which the association disappeared; in contrast, an association with female gender emerged. CONCLUSION Despite free health care being universally available in Spain, there are some groups of TB patients whose treatment is unduly delayed.
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Affiliation(s)
- M Díez
- TB Research Unit, National Centre for Epidemiology, Carlos III Institute of Public Health, Madrid, Spain.
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Díez M, Bleda MJ, Alcaide J, Caloto T, Castells C, Cardenal JI, Domínguez A, Gayoso P, Gutiérrez G, Huerta C, López MJ, Moreno T, Muñoz F, Navarro C, Picó M, Pozo F, Quirós JR, Robles F, Sánchez JM, Vanaclocha H, Vega T. Determinants of patient delay among tuberculosis cases in Spain. Eur J Public Health 2004; 14:151-5. [PMID: 15230500 DOI: 10.1093/eurpub/14.2.151] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [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: 11/13/2022] Open
Abstract
BACKGROUND Patient delay was investigated in a cohort of TB patients identified from May 1996 until April 1997 in 13 Autonomous Regions in Spain. The study covered almost 67% of the total Spanish population. METHODS Data were collected from clinical records. Using unconditional logistic regression with two different cut-off points to define 'patient delay' (the median and 75th percentile), the association between patient delay and different factors was estimated. RESULTS A total of 7,037 cases were included. Median and 75th percentile delays were 22 and 57 days respectively. Factors associated with patient delay greater than the median (p<0.05) were: non-respiratory symptoms of TB and age over 14 years, although the effect of age was not linear. Furthermore, an interaction was observed between intravenous drug user (IDU) and HIV status, in that, whereas patient delay was greater in IDUs than in non-IDUs among cases whose HIV status was either negative or unknown, among HIV-positive patients no such IDU-related differences were in evidence. Factors associated with extreme patient delay (greater than the 75th percentile) were essentially the same, but the above-described interaction disappeared, with IDU status showing no direct effect. In addition, likelihood of extreme patient delay increased in the case of alcoholism and female gender and decreased in the case of chronic renal failure, corticoid treatment, prison inmates and residents of old age homes. CONCLUSION Although there is a universally enjoyed right to health care in Spain, some groups of TB patients could nevertheless be experiencing problems in seeking medical attention.
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Affiliation(s)
- M Díez
- Unidad de Investigación en TB, Centro Nacional de Epidemiología, Instituto de Salud Carlos III, Madrid, Spain.
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Fernández-Torre JL, Sánchez JM, González C, Fernández-Guinea O. Complex partial status epilepticus of extratemporal origin in a patient with systemic lupus erythematosus. Seizure 2003; 12:245-8. [PMID: 12763474 DOI: 10.1016/s1059-1311(02)00259-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [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: 11/24/2022] Open
Abstract
The purpose of this case report is to describe the clinical, electroencephalographic and neuroimaging findings from a woman with systemic lupus erythematosus presenting with complex partial status epilepticus (CPSE) of neocortical temporo-parieto-occipital origin. The patient experienced complex visual hallucinations that initially were attributed to treatment with corticosteroids; however, an electroencephalogram (EEG) demonstrated the epileptic aetiology of her symptoms. CPSE should be considered as a possible cause of altered mental status in lupus. An urgent EEG is essential to make an accurate diagnosis.
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Muñoz L, Nomdedéu JF, Villamor N, Guardia R, Colomer D, Ribera JM, Torres JP, Berlanga JJ, Fernández C, Llorente A, Queipo de Llano MP, Sánchez JM, Brunet S, Sierra J. Acute myeloid leukemia with MLL rearrangements: clinicobiological features, prognostic impact and value of flow cytometry in the detection of residual leukemic cells. Leukemia 2003; 17:76-82. [PMID: 12529663 DOI: 10.1038/sj.leu.2402708] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2001] [Accepted: 06/19/2002] [Indexed: 11/09/2022]
Abstract
The MLL gene, located at 11q23 band, is frequently disrupted by different chromosomal rearrangements that occur in a variety of hematological malignancies. MLL rearrangements are associated with distinct clinical features and a poor prognosis. The aim of this study was to analyze the incidence and the prognostic significance of MLL rearrangements in a consecutive series of adult AML patients and to determine the immunophenotypic features of these cases. The identification of abnormal immunophenotypes could be used for the detection of minimal residual disease (MRD). Ninety-three adult patients with de novo acute myeloid leukemia (AML) were analyzed by Southern blot in order to detect MLL rearrangements (MLL+). RT-PCR and genomic long-range PCR were performed to further characterize MLL partial tandem duplication (PTD) in those patients in whom conventional karyotype did not show 11q23 chromosomal translocations. All the patients were homogeneously immunophenotyped at diagnosis. MLL rearrangements were detected in 13 (14%) patients. Four patients (5%) showed 11q23 translocations by karyotypic conventional analysis. Nine patients (10%) revealed PTD of MLL and one patient showed a MLL cleavage pattern. The MLL+ patients usually expressed myeloid and monocytic antigens CD33 (12/13 cases), CD13 (9/13), CD117 (9/13), CD64 (11/13) and in some cases CD14 (4/11). HLA-DR was also positive in (12/13). Eight out of 13 cases expressed the stem cell marker CD34. Only one patient revealed lymphoid marker reactivity (CD7) and CD56 was expressed in 5/13 cases. All the MLL+ patients showed at least one aberrant phenotype at diagnosis, which allowed us to set out a simple panel for the MRD studies. Twenty-seven samples from eight patients in morphologic complete remission (CR) were analyzed using the aberrant immunologic combinations detected at diagnosis. Phenotypically abnormal cells were detected in all the patients who subsequently relapsed, whereas only one patient with MRD+ remained in CR. Owing to the high level of residual leukemic cells, the MLL+ patients showed a short CR duration and a poor survival. In conclusion, immunophenotyping may be a suitable approach to investigating MRD status in AML patients with PTD of the MLL gene.
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MESH Headings
- Acute Disease
- Adolescent
- Adult
- Antibodies, Monoclonal/immunology
- Antibodies, Neoplasm/immunology
- Antigens, CD/immunology
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Blotting, Southern
- Chromosomes, Human, Pair 11/genetics
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Disease-Free Survival
- Flow Cytometry
- Gene Duplication
- Gene Rearrangement
- Histone-Lysine N-Methyltransferase
- Humans
- Immunophenotyping
- Karyotyping
- Leukemia, Myeloid/drug therapy
- Leukemia, Myeloid/genetics
- Leukemia, Myeloid/pathology
- Middle Aged
- Myeloid-Lymphoid Leukemia Protein
- Neoplasm, Residual/drug therapy
- Neoplasm, Residual/genetics
- Neoplasm, Residual/pathology
- Polymerase Chain Reaction
- Prognosis
- Proto-Oncogenes
- Remission Induction
- Transcription Factors
- Translocation, Genetic
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Affiliation(s)
- L Muñoz
- Department of Hematology, Hospital de la Santa Creu, Sant Pau, Barcelona, Spain
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Abstract
We determined the values of haematocrit and blood chemistry of the black vulture (Aegypius monachus) in Extremadura (Spain). We analysed 57 nestlings, five feral adults, seven captive individuals in their first year and five captive adults. Free-living adults had a higher haematocrit and lower calcium and alkaline phosphatases concentrations than captive birds. There were differences in haematocrit and in the concentrations of glucose, uric acid, total proteins, alkaline phosphatases, phosphorus and aspartate aminotransferase between nestlings and young in their first year and adults. The estimated age of the nestlings was significantly correlated with haematocrit, plasma glucose and total protein concentrations. The physical condition of nestlings was significantly correlated with plasma alkaline phosphatases levels.
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Affiliation(s)
- A Villegas
- Grupo de Investigación en Conservación, Area de Biología Animal, Universidad de Extremadura, Avda, de Elvas s/n, 06071, Badajoz, Spain.
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San Miguel JF, Lahuerta JJ, García-Sanz R, Alegre A, Bladé J, Martinez R, García-Laraña J, De La Rubia J, Sureda A, Vidal MJ, Escudero A, Pérez-Esquiza E, Conde E, García-Ruiz JC, Cabrera R, Caballero D, Moraleda JM, Leon A, Besalduch J, Hernandez MT, Rifon J, Hernandez F, Solano C, Palomera L, Parody R, Gonzalez JD, Mataix R, Maldonado J, Constela J, Carrera D, Bello JL, De Pablos JM, Pérez-Simón JA, Torres JP, Olanguren J, Prieto E, Acebede G, Peñarrubia MJ, Torres P, Díez-Martín JL, Rivas A, Sánchez JM, Díaz-Mediavilla J. Are myeloma patients with renal failure candidates for autologous stem cell transplantation? Hematol J 2002; 1:28-36. [PMID: 11920166 DOI: 10.1038/sj.thj.6200003] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/1999] [Accepted: 09/17/1999] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Renal function is one of the most important prognostic factors in multiple myeloma (MM). Patients with renal failure are generally excluded from high dose therapy even though they display a poor prognosis with conventional chemotherapy schemes. The aim of this study was to analyze the outcome of MM patients with renal insufficiency undergoing autologous stem cell transplantation (ASCT), including the evaluation of the quality of PB stem cell collections, kinetics of engraftment, transplant-related mortality, response to high dose chemotherapy and survival. MATERIALS AND METHODS From a total of 566 valuable patients included in the MM Spanish ASCT registry, three groups of patients were defined: group BA, patients with abnormal renal function at diagnosis but normal at transplant (73 cases); group BB, patients with abnormal function both at diagnosis and at transplant (14 cases); and group AA (control group, 479 cases), patients who constantly had normal renal function. RESULTS AND CONCLUSION Patients from groups BA and BB presented with a significantly higher number of adverse prognostic factors, reflecting that we were dealing with high tumor MM cases, as compared with patients from group AA. The number of mononuclear cells, CD34+ cells and CFU-GM cells collected in patients with non-reversible renal insufficiency was similar to those harvested in MM patients with normal renal function. Moreover, neutrophil and platelet engraftments were identical in patients with and without renal failure (days +11 and +12, respectively). By contrast, transplant-related mortality (TRM) was significantly higher in group BB patients (29%) than in groups BA (4.1%) and AA (3.3%). In multivariate analysis only three variables showed independent influence on TRM: poor performance status (ECOG 3), hemoglobin <9.5 g/dl and serum creatinine > or =5 mg/dl. The response to high dose therapy was independent of renal function. Interestingly, 43% of patients from group BB showed an improvement in renal function (creatinine < 2 mg/dl) after transplant. The three-year overall survival from transplantation was 56, 49 and 61% for the BB, BA and AA groups, respectively, with a statistically significant difference favoring group AA (P<0.01). PFS did not differ significantly between the three groups of patients. In multivariate analysis the only unfavorable independent prognostic factors for overall survival were poor performance status either at diagnosis or at transplant, high beta(2)-microglobulin levels, and no response to transplant. According to these results, ASCT is an attractive alternative for MM patients with renal insufficiency, and it should not constitute a criterion for exclusion from transplant unless patients display poor performance status and very high creatinine levels (>5 mg/dl).
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Affiliation(s)
- J F San Miguel
- Spanish Registry for Transplant in Multiple Myeloma, Grupo Español de Trasplante Hematopoyético (GETH), Spain.
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Sánchez JM, Li Y, Rubashkin A, Iserovich P, Wen Q, Ruberti JW, Smith RW, Rittenband D, Kuang K, Diecke FPJ, Fischbarg J. Evidence for a central role for electro-osmosis in fluid transport by corneal endothelium. J Membr Biol 2002; 187:37-50. [PMID: 12029376 DOI: 10.1007/s00232-001-0151-9] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.4] [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] [Received: 08/14/2001] [Indexed: 10/27/2022]
Abstract
The mechanism of transepithelial fluid transport remains unclear. The prevailing explanation is that transport of electrolytes across cell membranes results in local concentration gradients and transcellular osmosis. However, when transporting fluid, the corneal endothelium spontaneously generates a locally circulating current of approximately 25 microA cm(-2), and we report here that electrical currents (0 to +/-15 microA cm(-2)) imposed across this layer induce fluid movements linear with the currents. As the imposed currents must be approximately 98% paracellular, the direction of induced fluid movements and the rapidity with which they follow current imposition (rise time < or =3 sec) is consistent with electro-osmosis driven by sodium movement across the paracellular pathway. The value of the coupling coefficient between current and fluid movements found here (2.37 +/- 0.11 microm cm(2) hr(-1) microA (-1), suggests that: 1) the local endothelial current accounts for spontaneous transendothelial fluid transport; 2) the fluid transported becomes isotonically equilibrated. Ca(++)-free solutions or endothelial damage eliminate the coupling, pointing to the cells and particularly their intercellular junctions as a main site of electro-osmosis. The polycation polylysine, which is expected to affect surface charges, reverses the direction of current-induced fluid movements. Fluid transport is proportional to the electrical resistance of the ambient medium. Taken together, the results suggest that electro-osmosis through the intercellular junctions is the primary process in a sequence of events that results in fluid transport across this preparation.
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Affiliation(s)
- J M Sánchez
- Department of Ophthalmology, College of Physicians and Surgeons, Columbia University, W 168th St., New York, NY 10032, USA
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Diez M, Huerta C, Moreno T, Caloto T, Guerra D, Pozo F, Alcaide J, Castells C, Cardenal JI, Domínguez A, Gayoso P, Gutiérrez G, López MJ, Muñoz F, Navarro C, Picó M, Quirós JR, Robles F, Sánchez JM, Vanaclocha H, Vega T. Tuberculosis in Spain: epidemiological pattern and clinical practice. Int J Tuberc Lung Dis 2002; 6:295-300. [PMID: 11936737] [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: 02/24/2023] Open
Abstract
SETTING Thirteen Autonomous Regions in Spain. OBJECTIVE To study the incidence of all forms of tuberculosis (TB) and investigate clinical practice in TB. DESIGN Cases of all forms of tuberculosis diagnosed in the study setting from May 1986 to April 1997 were identified though active search of different databases. Clinical and epidemiological information on cases was collected from clinical records or by interview with physicians. RESULTS The overall incidence of all forms of tuberculosis was 38.5/100,000 and the incidence of smear-positive disease was 13.83/100,000. Most cases (97.1%) were Spanish nationals, with rates higher in men than in women (52.7/100,000 vs. 24.87/100,000) and in groups aged 25-34 and 75 years and over (61.35/100,000 and 59.35/100,000, respectively). Disseminated forms were frequent (6.6%), and the most common risk factor was human immunodeficiency virus (HIV) infection (17.7% of cases). Hospitalisation was common (71.6%). Microbiological confirmation of diagnosis was sought for 87.7% of the cases (91.8% of pulmonary vs. 75.5% of extra-pulmonary cases), and 65.2% were culture-positive (73.8% of pulmonary vs. 39.7% of extra-pulmonary cases). HIV-infected patients were treated in almost equal proportions with three or four drugs (49.7% and 48.2%, respectively), while HIV-negative cases or those whose HIV status was unknown were usually treated with three drugs. CONCLUSION The epidemiological pattern of TB in Spain is different to other industrialised countries in the age distribution of cases and the proportions of foreigners and cases with HIV infection. Microbiological confirmation of diagnosis is more common in pulmonary than in extra-pulmonary disease, and treatment with four drugs more frequent in HIV-positive cases.
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Affiliation(s)
- M Diez
- Unidad de Investigación en Tuberculosis, Instituto de Salud Carlos III, Madrid, Spain.
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Gómez-Arbonés X, Pinacho A, Ortiz P, Maciá J, Gallart M, Araguás C, Sánchez JM, Teixidó M. Quantification of foetomaternal haemorrhage. An analysis of two cytometric techniques and a semiquantitative gel agglutination test. Clin Lab Haematol 2002; 24:47-53. [PMID: 11843899 DOI: 10.1046/j.1365-2257.2002.00146.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Traditional tests to screen for foetomaternal haemorrhage are time-consuming and difficult to perform. The Kleihauer test is widely used but difficult to standardize. We evaluated three techniques for quantifying foetomaternal haemorrhage: a semiquantitative gel agglutination test and two flow cytometric techniques. The gel agglutination test is based on the consumption of anti-D reagent by D+ cells, analysing the reaction of the supernatant against indicator cells in a Coombs-gel card. In the two colour direct immunofluorescent technique, the sample is incubated with Per-CP labelled anti CD45 antibody, fixed with glutaraldehyde and permeabilized by exposure to Triton X-100. An aliquot is stained with an antibody to foetal haemoglobin, conjugated with fluorescein isothiocyanate or phycoerythrin. The indirect immunofluorescent technique is based on the labelling of Rh (D) antigen with an anti D reagent, followed by the addition of an anti IgG antibody conjugated with phycoerythrin. Foetomaternal haemorrhage was not detected in 75 of the 85 samples analysed by the direct immunofluorescent technique. In the remaining 10 samples, the volume was very low. Thirty-five samples with Rh (D) antigen incompatibility were analysed in parallel by the indirect immunofluorescent technique and in 15 of the 35 samples, the gel agglutination technique was also carried out. The three techniques gave similar results. The gel agglutination test can be used to screen for foetomaternal haemorrhage, while greater volumes should be quantified by flow cytometric techniques.
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Affiliation(s)
- X Gómez-Arbonés
- Department of Haematology, Arnau de Vilanova University Hospital, University of Lleida, Spain.
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Méndez-Sánchez N, González V, Aguayo P, Sánchez JM, Tanimoto MA, Elizondo J, Uribe M. Fish oil (n-3) polyunsaturated fatty acids beneficially affect biliary cholesterol nucleation time in obese women losing weight. J Nutr 2001; 131:2300-3. [PMID: 11533270 DOI: 10.1093/jn/131.9.2300] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [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: 11/13/2022] Open
Abstract
It has been reported that intake of (n-3) polyunsaturated fatty acids (PUFA) reduces the risk of coronary heart disease and decreases biliary cholesterol saturation in the bile of gallstone patients. We investigated the effect of n-3 PUFA on cholesterol saturation index (CSI) and nucleation time (NT) in obese subjects who were losing weight. This was a double-blind, placebo-controlled clinical trial. Obese women (n = 35) with a body mass index (BMI) > or = 30 kg/m(2), with no prior history of gallstones or cholecystectomy by ultrasound were first studied to ensure absence of stones or biliary sludge. The women were then assigned to a hypocaloric regimen [5.02 MJ (1200 kcal)/d] and to receive 1200 mg/d of ursodeoxycholic acid (UDCA), 11.3 g/d of (n-3) PUFA or a placebo for 6 wk. BMI, CSI and NT were recorded at baseline and at the end of the experimental period. BMI decreased 5.75 +/- 2.7%/mo (range, 1.5-12.42%/mo) during the experiment. The CSI did not change in any of the groups. Cholesterol NT decreased significantly in the UDCA and placebo groups, but not in the (n-3) PUFA group. None of the women had developed gallstones at 6 wk. These results suggest that (n-3) PUFA maintain the CSI and NT in obese women during rapid weight loss, which probably results in the prevention of cholesterol gallstone formation.
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Affiliation(s)
- N Méndez-Sánchez
- Department of Biomedical Research, Medica Sur Clinic and Foundation, Mexico City, Mexico.
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29
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Rosell R, Sánchez JM, Tarón M, O'Brate A, Gutiérrez JL, Monzó M, Felip E, Sánchez JJ, Alberola V. Novel approaches in the treatment of non-small-cell lung cancer. Oncology (Williston Park) 2001; 15:52-60. [PMID: 11301850] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
A wealth of data indicates that certain genetic abnormalities can target specific cytotoxic drugs and intervene at an early step as a mechanism of resistance in the treatment of non-small-cell lung cancer. Therefore prescribing certain combinations of cytotoxic anticancer agents to a vast majority of these patients is futile. Genetic abnormalities have been found to be useful surrogate markers for response, particularly in colorectal cancer: thymidylate synthase mRNA and ERCC1 mRNA levels. In addition, beta-tubulin mutations may also confer paclitaxel resistance in patients. An important target to be explored for gemcitabine resistance is the assessment of a particular region in chromosome 11p15.5 wherein lies the ribonucleotide reductase gene that could affect gemcitabine metabolism. Shedding light on this genetic framework, several proposed customized chemotherapy studies could help validate the relevance of these markers.
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Affiliation(s)
- R Rosell
- Medical Oncology Service, Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain
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Abstract
A case of papillary squamous cell carcinoma of the larynx in a 50-year-old man is reported. The lesion was located in the supraglottic region and grossly presented a characteristic finger-like pattern of growth. The tumour pursued an indolent clinical course, and the patient is well and free of disease after 47 months of follow-up. The present paper recapitulates the macro- and microscopic features of this rare neoplasm and stresses its differential diagnosis with other exophytic squamous cell carcinomas of the region.
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Affiliation(s)
- C Ereño
- Department of Pathology, Hospital de Basurto, Basque Country University, Bilbao, Spain
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31
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Kuchinka BD, Barrett IJ, Moya G, Sánchez JM, Langlois S, Yong SL, Kalousek DK, Robinson WP. Two cases of confined placental mosaicism for chromosome 4, including one with maternal uniparental disomy. Prenat Diagn 2001; 21:36-9. [PMID: 11180238 DOI: 10.1002/1097-0223(200101)21:1<36::aid-pd979>3.0.co;2-1] [Citation(s) in RCA: 30] [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] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Two cases of trisomy 4 mosaicism are reported including one with molecularly confirmed uniparental disomy (UPD) of chromosome 4. Cytogenetic analysis of a chorionic villus sample (CVS) in Case 1 showed complete trisomy 4 in trophoblast and diploidy in chorionic stroma. Amniotic fluid analysis demonstrated a 46,XX complement. After intrauterine fetal death at 30 weeks, molecular analysis confirmed the presence of trisomy 4 of maternal meiotic origin, while fetal tissues showed maternal UPD for chromosome 4. Cultured CVS in Case 2 revealed trisomy 4 in 2/30 cells analyzed. This pregnancy resulted in a healthy livebirth with biparental inheritance of chromosome 4. Molecularly confirmed UPD4 has not been previously reported, and therefore, although the adverse outcome in Case 1 is likely due to the trisomy 4 in the placenta, an imprinting effect associated with UPD4 cannot be excluded.
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Affiliation(s)
- B D Kuchinka
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
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32
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Gimeno JA, Puebla C, Sánchez JM, Aguilar E. [Dysgenetic male pseudohermaphroditism diagnosed in an elderly patient]. Med Clin (Barc) 2000; 115:517-8. [PMID: 11093877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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33
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Gómez-Arbonés X, Pinacho A, Ortiz P, Maciá J, Gallart M, Araguás C, Sánchez JM, Teixidó M. A simple flow-cytometric method for absolute counting of residual white blood cells in leukocyte-reduced packed red cells. Vox Sang 2000; 76:64-5. [PMID: 9933857 DOI: 10.1159/000031022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- X Gómez-Arbonés
- Department of Hematology, Arnau de Vilanova University Hospital, University of Lleida, Spain
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34
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López-Encuentra A, Bülzebruck H, Feinstein AR, Motta G, Mountain CF, Naruke T, Sánchez JM, Tsuchiya R, Wittekind C. Tumor staging and classification in lung cancer. Summary of the international symposium. Madrid, Spain, 3-4 December 1999. Lung Cancer 2000; 29:79-83. [PMID: 10970143 DOI: 10.1016/s0169-5002(00)00115-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- A López-Encuentra
- Servicio Neumologia Hospital Universitario, Andalucia 4.4 28041 Madrid, Spain
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35
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Fernández-Torre JL, González C, Sánchez JM. Re: Begemann et al. article describing the first case of nonconvulsive status epilepticus (NCSE) successfully treated with propofol. Epilepsia 2000; 41:920. [PMID: 10897171 DOI: 10.1111/j.1528-1157.2000.tb00269.x] [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: 11/28/2022]
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36
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Fernández-Torre JL, González C, Sánchez JM. [Nonconvulsive status epilepticus of frontal origin. A case report]. Rev Neurol 2000; 30:1040-3. [PMID: 10904950] [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: 02/17/2023]
Abstract
INTRODUCTION Nonconvulsive status epilepticus (NCSE) of frontal origin is a form of partial status epilepticus which has rarely been well-documented. The inespecificity of the symptoms contribute frequently to its misinterpretation being the EEG the most useful tool to make an accurate diagnosis. CLINICAL CASE We report a 53-year-old woman who suffered from two generalized tonic-clonic seizures secondary to a left frontal hematoma in 1994. Onset of treatment with carbamazepine was followed by a complete control of seizures. After remaining seizure-free during four years, antiepileptic therapy was discontinued. By June 1999, she presented with a prolonged confusional state having a generalized tonic-clonic seizure at the emergency room. At that moment, a computed tomography (CT) scan was normal. Generalized seizures were controlled with phenytoin, however, the patient remained confused having occasionally episodes of turning of the head and eyes to the right side. Ictal EEG examination showed recurrent bilateral frontopolar, frontocentral and frontotemporal epileptiform discharges with a left frontal focal onset. The diagnosis of NCSE of frontal origin was made. Despite several anticonvulsant combinations, confusional state remained unchanged and she was transferred to the intensive care unit for sedation with propofol and mydazolam. On the following days, she experienced a marked improvement and EEG showed a few frontal spikes and sharp waves but without evidence of electrographic status epilepticus. The patient was finally discharged and remains seizure-free on phenytoin therapy. CONCLUSIONS Our clinical and EEG findings are in keeping with the diagnosis of NCSE of frontal origin. A severe confusional state was the most prominent symptom and EEG was essential for the diagnosis.
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Sánchez JM, Obrezkov O, Salvadó V. Separation of some platinum group metal chelates with 8-hydroxyquinoline by various high-performance liquid chromatographic methods. J Chromatogr A 2000; 871:217-26. [PMID: 10735302 DOI: 10.1016/s0021-9673(99)01014-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [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: 11/30/2022]
Abstract
Different HPLC methodologies are employed to evaluate the separation and determination of some platinum metals (Pt, Pd, Ir and Rh) after the formation of 8-hydroxyquinolate chelates. With the aim of reducing the number of steps in treating the samples, the method developed did not include the elimination of excess chelating reagent before the analysis of metal chelates. Reversed-phase (RP), non-aqueous reversed-phase (NARP) and normal-phase (NP) HPLC are compared. The RP-HPLC method only permits the quantitative separation of Rh and Pd from the excess reagent. A silica column can be used to separate Ir and Rh by NP-HPLC. The NARP-HPLC method allows for the effective separation of the four elements tested, but the high detection limit (90 ng) for platinum and the peak width do not favour its application for quantitative measurement. Platinum group metals can be quantitatively separated and determined by NP-HPLC using a cyano column in less than 15 min. The broad linear range of all the elements (between 1 and 500 ng) is superior to that which has been previously reported and the detection limits (1.0 ng for Pt, 0.3 ng for Pd, 1.0 ng for Ir and 0.3 ng for Rh) are slightly lower.
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Affiliation(s)
- J M Sánchez
- Chemistry Department, University of Girona, Spain
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38
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Alvarez R, Alvarez V, Lahoz CH, Martínez C, Peña J, Sánchez JM, Guisasola LM, Salas-Puig J, Morís G, Vidal JA, Ribacoba R, Menes BB, Uría D, Coto E. Angiotensin converting enzyme and endothelial nitric oxide synthase DNA polymorphisms and late onset Alzheimer's disease. J Neurol Neurosurg Psychiatry 1999; 67:733-6. [PMID: 10567488 PMCID: PMC1736659 DOI: 10.1136/jnnp.67.6.733] [Citation(s) in RCA: 67] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Several lines of evidence suggest that the endothelial constitutive nitric oxide synthase (ecNOS) and angiotensin converting enzyme (ACE) may have a role in Alzheimer's disease. ACE is widely expressed in the brain, and a DNA polymorphism at the ACE gene has been linked to the risk for late onset Alzheimer's disease. Nitric oxide (NO) production by microglial cells, astrocytes, and brain microvessels is enhanced in patients with Alzheimer's disease. There is a growing evidence that NO is involved in neuronal death in Alzheimer's disease, and the oxidative stress caused by NO in the brain could be a pathogenic mechanism in Alzheimer's disease. The objective was to determine if two DNA polymorphisms at the ecNOS and ACE genes that have been linked with different levels of enzyme expression, have some effect on the risk of developing late onset Alzheimer disease. METHODS A total of 400 healthy controls younger than 65 years and 350 patients with Alzheimer's disease (average age 72 years) were genotyped for the ACE and ecNOS polymorphisms. To define a possible role for these polymorphisms in longevity 117 healthy controls older than 85 years were also analysed. Genomic DNA was obtained and amplified by polymerase chain reaction, and genotypes were defined following a previously described procedure. Gene and genotype frequencies between patients and controls were compared statistically. RESULTS Gene and genotype frequencies for the ecNOS and ACE polymorphisms did not differ between both groups of healthy controls (<65 years and >85 years). EcNOS gene and genotype frequencies were similar between patients and controls. There was a slight but significantly increased frequency of the ACE-I allele among patients with Alzheimer's disease compared with controls (p=0.03; OR=1.28, 95%CI= 1.04;1.58). CONCLUSIONS The ACE-I allele was associated with a slightly increased risk of developing late onset Alzheimer's disease.
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Affiliation(s)
- R Alvarez
- Laboratorio de Genética Molecular-Instituto Reina Sofía de Investigación Nefrológica, Hospital Central de Asturias, Oviedo, Spain
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Alvarez V, Alvarez R, Lahoz CH, Martínez C, Peña J, Guisasola LM, Salas-Puig J, Morís G, Uría D, Menes BB, Ribacoba R, Vidal JA, Sánchez JM, Coto E. Association between an alpha(2) macroglobulin DNA polymorphism and late-onset Alzheimer's disease. Biochem Biophys Res Commun 1999; 264:48-50. [PMID: 10527839 DOI: 10.1006/bbrc.1999.1295] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [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: 11/22/2022]
Abstract
An association between a five-base-pair deletion/insertion DNA polymorphism at the alpha(2) macroglobulin gene (A2M) and late-onset Alzheimer's disease (LOAD) has been recently described. We developed a PCR assay to analyze this polymorphism in 190 LOAD patients (older than 65 years) and 400 controls from Spain. Controls were stratified into three groups: <65 years (n = 200), 65 to 80 years (n = 100), and 81 years or older (n = 100). We found a significantly higher frequency of carriers of the D allele in patients older than 81 years compared to controls older than 81 years (p = 0.0012). In addition, the frequency of the D allele was significantly lower in controls older than 81 years compared to controls younger than 65 (p = 0.048). Our work suggests that the D allele confers an age-dependent increased risk to develop late-onset Alzheimer's disease.
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Affiliation(s)
- V Alvarez
- Laboratorio Genética Molecular-Instituto Investigación Nefrológica, Hospital Central Asturias, Oviedo, Spain
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40
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Sánchez JM, Franzi L, Collia F, De Díaz SL, Panal M, Dubner M. Cytogenetic study of spontaneous abortions by transabdominal villus sampling and direct analysis of villi. Prenat Diagn 1999; 19:601-3. [PMID: 10419605] [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
We report our experience in a cytogenetic study of 93 spontaneous abortions. Specimens were obtained by transabdominal chorionic villus sampling (TACVS) in women requesting prenatal diagnosis by chorionic villus sampling (CVS) but in whom an arrested pregnancy had been diagnosed during the ultrasound examination. Our success rate, i.e. the percentage of cases where we obtained results, was 91. 4 per cent, and the rate of abnormalities-mostly aneuploidies and polyploidies-was 62.3 per cent. In normal cases, masculine:feminine ratio was 1:1. These results confirm those obtained by other groups earlier this decade and allow us to conclude that, for the cytogenetic study of spontaneous abortions, CVS is a better approach than the culture of the products of conception after evacuation, because the success rate is higher and because it provides certainty that the specimens obtained are of fetal origin.
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Affiliation(s)
- J M Sánchez
- Fundación Genos, F. A. de Figueroa 731, 1180 Buenos Aires, Argentina.
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Zarza R, Alvarez R, Pujades A, Nomdedeu B, Carrera A, Estella J, Remacha A, Sánchez JM, Morey M, Cortes T, Pérez Lungmus G, Bureo E, Vives Corrons JL. Molecular characterization of the PK-LR gene in pyruvate kinase deficient Spanish patients. Red Cell Pathology Group of the Spanish Society of Haematology (AEHH). Br J Haematol 1998; 103:377-82. [PMID: 9827908 DOI: 10.1046/j.1365-2141.1998.01013.x] [Citation(s) in RCA: 29] [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: 11/20/2022]
Abstract
The PK-LR gene has been studied in 12 unrelated patients with red cell pyruvate kinase deficiency and hereditary nonspherocytic haemolytic anaemia (CNSHA). The entire codifying region of the R-type PK gene and the flanking intronic regions were analysed by single-stranded conformation polymorphism (SSCP) followed by direct sequencing of abnormal DNA. 10 different mutations were identified in 22/24 alleles at risk. Eight of these were missense mutations that caused the following single amino acid changes: G514C (172Glu-Gln), G1010A (337Arg-Gln), G1015C (339Asp-Gln), T1070C (357Ile-Thr), C1223T (408Thr-Ile), G1291A (431Ala-Thr), C1456T (486Arg-Trp) and G1595A (532Arg-Gln). Two were nonsense mutations: G721T (241Glu-Stop) and C1675T (559Arg-Stop). 7/22 alleles demonstrated the same C1456 --> T mutation. The study of the polymorphic site at nucleotide (nt) 1705 performed in all cases disclosed a 1705 C/C mutation in 10 and a 1705 A/C mutation in three. This is the first report on the presence of several different L-type PK gene mutations within Spanish population. Furthermore, from the PK gene mutations found, six were unique and not previously described (1015C, 1070C, 1223T, 1291A, 1595A and 1675T) and one (C1456T) seems to be predominant in Spain. Interestingly, no case with the 1529A mutation commonly found in Northern European populations was present here.
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Affiliation(s)
- R Zarza
- Haematology Department of Hospital Clinic i Provincial, Barcelona, Spain
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Delgado LJ, Montiel J, Guindo J, Margarit L, Casas I, Ramírez I, Sánchez JM, Bayes de Luna A, Caralps JM. [Myxoma of the left ventricle: a cause of syncope in an adolescent]. Rev Esp Cardiol 1998; 51:674-6. [PMID: 9780783] [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: 02/09/2023]
Abstract
Clinical diagnosis of cardiac tumours is often difficult. We present the case of a 17 year-old boy in whom a left ventricular tumour was discovered during on diagnostic work-up for a syncope. The tumour was removed and histology confirmed the diagnosis of myxoma.
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Affiliation(s)
- L J Delgado
- Departamento de Cirugía Cardíaca y Cardiología, Clínica Quirón, Barcelona
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Sánchez JM, Paniagua I, Valero A. Contribution to the knowledge of Hysterothylacium aduncum through electrophoresis of the enzymes glucose phosphate isomerase and phosphoglucomutase. Parasitol Res 1998; 84:160-3. [PMID: 9493219 DOI: 10.1007/s004360050376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 02/06/2023]
Abstract
A total of 163 Hysterothylacium aduncum specimens, obtained from two gadoids and one percid, were studied by electrophoresis of the enzymes glucose phosphate isomerase and phosphoglucomutase. The two loci deviated significantly from the Hardy-Weinberg equilibrium, both when considering all specimens and when distinguishing the hosts. This could suggest that there is no single species in either case.
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Affiliation(s)
- J M Sánchez
- Department of Parasitology, Faculty of Pharmacy, Granada University, Spain.
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Sánchez JM, Zurro FJ, Ferreiro D, Llana R, Uría DF. [Haemophilus influenzae type B meningitis: typical and atypical presentation]. Neurologia 1998; 13:92-3. [PMID: 9578677] [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: 02/07/2023] Open
Abstract
We present 2 cases of Haemophilus influenzae meningitis. The first is a patient with atypical simptomatology: abdominal pain, fever and two days later pain in the back of his legs. Abdominal pathology was not found. The cerebrospinal fluid (CSF) showed polymorphonuclear cells, hyperproteinorachia and lowered glucose. CSF culture revealed Haemophilus influenzae, blood culture was sterile. The second had suffered surgery at maxilar and ethmoid sinuses four years before, and unknown germ meningitis 6 months before. Haemophilus influenzae was isolated from CSF cultures and CSF rhinorrhea was detected by isotopic cisternography.
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Affiliation(s)
- J M Sánchez
- Sección de Neurologiá, Hospital de San Agustín, Avilés, Asturias
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Sánchez JM, Martin JM. Does the type of surgical operation influence the changes observed in fibrinolytic activity after cardiopulmonary bypass? Chest 1997; 112:856-7. [PMID: 9315832 DOI: 10.1378/chest.112.3.856-c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Abstract
Chorionic villus sampling (CVS) and amniocentesis were performed on a pregnant woman during her 24th week of amenorrhoea following an ultrasound scan which showed a fetus with hydrocephaly, intrauterine growth retardation (IUGR), and a single umbilical artery. The direct karyotype from the cytotrophoblast was non-mosaic 47,XXX,+16, while in amniotic fluid and several fetal tissues, studied post-mortem, a normal 46,XX karyotype was found in more than 400 cells. Uniparental disomy (UPD) was excluded by molecular genetic studies. Autopsy confirmed the echographic findings; in addition, agenesis of the corpus callosum and polysplenia were observed. This is the second example of congenital abnormality associated with confined placental mosaicism (CPM) for trisomy 16, without evidence of either UPD or an apparent contribution of abnormal cells to the fetus.
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Serrano L, Sánchez JM, García I, Domínguez J. Diagnostic and therapeutic thoracoscopy in esophageal cancer. Rev Esp Enferm Dig 1997; 89:79-81, 83-5. [PMID: 9115828] [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] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The decision before operation whether an esophagus affected by cancer can be resected is difficult. In order to determine if the tumor can be removed or not, patients must undergo surgery. This high risk intervention is often carried out only to prescribe palliative treatment. We used a thoracoscopic technique for the diagnosis and resection of esophageal cancer with the aim of improving the high morbidity rate associated with esophageal open surgery. A right thoracoscopy was performed in seven patients and only four underwent resection. The entire esophagus was mobilized thoracoscopically and the intervention was completed through the abdomen and the neck. In three patients in whom resection was not considered possible, the thoracoscopic procedure was done with excellent tolerance, and treated by palliative methods. Thoracoscopy is a very valuable procedure for the diagnosis of resectability as well as for the mobilization of the esophagus prior to resection.
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Affiliation(s)
- L Serrano
- Departamento de Cirugía, Hospital Universitario Virgen del Rocío, Sevilla
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Montejo AI, Llorca G, Izquierdo JA, Ledesma A, Bousoño M, Calcedo A, Carrasco JL, Daniel E, de Dios A, de la Gándara J, Derecho J, Franco M, Gómez MJ, Macías JA, Martín T, Pérez V, Sánchez JM, Sánchez S, Vicens E. [Sexual dysfunction secondary to SSRIs. A comparative analysis in 308 patients]. Actas Luso Esp Neurol Psiquiatr Cienc Afines 1996; 24:311-321. [PMID: 9054202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
UNLABELLED The authors analyze the incidence of sexual dysfunction (SD) with different SSRIs (Fluoxetine, Fluvoxamine, Paroxetine and Sertraline) and hence the qualitative and quantitative changes in SD throughout time 308 outpatients (169 women, 139 men; mean +/- SD age = 41 +/- 7) under treatment with SSRIs were interviewed with an SD questionnaire designed for this purpose by the authors including questions about the following items decreased libido, delayed orgasm or anorgasmia, delayed ejaculation inability to ejaculation, impotence and general sexual satisfaction. Patients with the following criteria were included: normal sexual function before SSRIs intake, exclusive treatment with SSRIs or associated with benzodiazepines, previous heterosexual or self-orone current sexual practices. We excluded patients with previous sexual dysfunction, association of SSRIs with neuroleptics, recently hormone intake and significant medical illnesses. RESULTS There is a significant increase in the incidence of SD when the physicians ask the patients direct questions (55.29%) versus spontaneous SD reported (14.2%). There are some significant differences among different SSRIs paroxetine provoked more delay of orgasm/ejaculation and more impotence than fluvoxamine, fluoxetine and sertraline (Chi square p < 0.05). Only 22.6% of the patients had a good tolerance about their sexual dysfunction. SD has positive correlation with the dose. The patients experienced substantial improvement in sexual function when the dose was diminished or the drug was withdrawn. Men showed more incidence of sexual dysfunction than women but women's sexual dysfunction was more intense than men. Seven of nine patients (77.7%) experienced total improvement when the treatment was changed to Moclobemide (450 mg/day) and two of four patients (50%) improved when treatment was changed to Amineptine.
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Sánchez JM, Castro MJ, Alonso ME, Gaudioso VR. Adaptive metabolic responses in females of the fighting breed submitted to different sequences of stress stimuli. Physiol Behav 1996; 60:1047-52. [PMID: 8884931 DOI: 10.1016/0031-9384(96)00160-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The objectives of this study were to evaluate the stress reaction and the metabolic adaptive effort in females of the fighting breed when submitted to different manipulation sequences. Nine 4- to 8-year-old bovine fighting breed females slaughtered to establish the basal levels of different blood parameters. A study was, then, conducted to examine the metabolic response in 30 2-year-old females, divided into 3 groups of 10 animals and submitted to different manipulations in each group: restraint- "open-field" -restraint, "open-field" -restraint, and transportation-restraint- "open-field" -restraint. The basal levels of the different blood parameters found were, in general, similar to the levels for cattle given in the literature. All the manipulations resulted in increases that were statistically different (p < 0.001) from basal levels, in terms of both cortisol plasma levels and the Specie Specific Experimental Response to Stress index (SSERTS). The stress of restraint (and the prior manipulations) seemed to mask the stress associated with the open-field and transport situations. In general, animals responded to 13 of the 15 parameters examined in the various experimental manipulations.
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Affiliation(s)
- J M Sánchez
- Departmento de Producción Animal II, Facultad de Veterinaria, Universidad de León, Spain
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