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The induction of defences in response to herbivory is a key mechanism of plant resistance. While a number of studies have investigated the time course and magnitude of plant induction in response to a single event of herbivory, few have looked at the effects of recurrent herbivory. Furthermore, studies measuring the effects of the total amount and recurrence of herbivory on both direct and indirect plant defences are lacking. To address this gap, here we asked whether insect leaf herbivory induced changes in the amount and concentration of extrafloral nectar (an indirect defence) and concentration of leaf phenolic compounds (a direct defence) in wild cotton (Gossypium hirsutum). We conducted a greenhouse experiment where we tested single event or recurrent herbivory effects on defence induction by applying mechanical leaf damage and caterpillar (Spodoptera frugiperda) regurgitant. Single events of 25% and 50% leaf damage did not significantly influence extrafloral nectar production or concentration. Extrafloral nectar traits did, however, increase significantly relative to controls when plants were exposed to recurrent herbivory (two episodes of 25% damage). In contrast, phenolic compounds increased significantly in response to single events of  leaf damage but not to recurrent damage. In addition, we found. that local induction of extrafloral nectar production was stronger than systemic induction, whereas the reverse pattern was observed for phenolics. Together, these results reveal seemingly inverse patterns of induction of direct and indirect defences in response to herbivory in wild cotton.

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Identifying the mechanisms of compensation to insect herbivory remains a major challenge in plant biology and evolutionary ecology. Most previous studies have addressed plant compensatory responses to one or two levels of insect herbivory, and the underlying traits mediating such responses remain elusive in many cases. We evaluated responses associated with compensation to multiple intensities of leaf damage (0% control, 10%, 25%, 50%, 75% of leaf area removed) by means of mechanical removal of foliar tissue and application of a caterpillar (Spodoptera exigua) oral secretions in 3-month-old wild cotton plants (Gossypium hirsutum). Four weeks post-treatment, we measured plant growth and multiple traits associated with compensation, namely: changes in above- and belowground, biomass and the concentration of nutrients (nitrogen and phosphorus) and non-structural carbon reserves (starch and soluble sugars) in roots, stems and leaves. We found that wild cotton fully compensated in terms of growth and biomass allocation when leaf damage was low (10%), whereas moderate (25%) to high leaf damage in some cases led to under-compensation. Nonetheless, high levels of leaf removal (50% and 75%) in most cases did not cause further reductions in height and allocation to leaf and stem biomass relative to low and moderate damage. There were significant positive effects of leaf damage on P concentration in leaves and stems, but not roots, as well as a negative effect on soluble sugars in roots. These results indicate that wild cotton fully compensated for a low level of leaf damage but under-compensated under moderate to high leaf damage, but can nonetheless sustain growth despite increasing losses to herbivory. Such responses were possibly mediated by a re-allocation of carbohydrate reserves from roots to shoots.

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BACKGROUND: Donor smoking history and higher fraction of inspired oxygen (FIO2) at reperfusion are associated with primary graft dysfunction (PGD) after lung transplantation. We hypothesized that oxidative injury biomarkers would be elevated in PGD, with higher levels associated with donor exposure to cigarette smoke and recipient hyperoxia at reperfusion. METHODS: We performed a nested case-control study of 72 lung transplant recipients from the Lung Transplant Outcomes Group cohort. Using mass spectroscopy, F2-isoprostanes and isofurans were measured in plasma collected after transplantation. Cases were defined in 2 ways: grade 3 PGD present at day 2 or day 3 after reperfusion (severe PGD) or any grade 3 PGD (any PGD). RESULTS: There were 31 severe PGD cases with 41 controls and 35 any PGD cases with 37 controls. Plasma F2-isoprostane levels were higher in severe PGD cases compared with controls (28.6 pg/ml vs 19.8 pg/ml, p = 0.03). Plasma F2-isoprostane levels were higher in severe PGD cases compared with controls (29.6 pg/ml vs 19.0 pg/ml, p = 0.03) among patients reperfused with FIO2 >40%. Among recipients of lungs from donors with smoke exposure, plasma F2-isoprostane (38.2 pg/ml vs 22.5 pg/ml, p = 0.046) and isofuran (66.9 pg/ml vs 34.6 pg/ml, p = 0.046) levels were higher in severe PGD compared with control subjects. CONCLUSIONS: Plasma levels of lipid peroxidation products are higher in patients with severe PGD, in recipients of lungs from donors with smoke exposure, and in recipients exposed to higher Fio2 at reperfusion. Oxidative injury is an important mechanism of PGD and may be magnified by donor exposure to cigarette smoke and hyperoxia at reperfusion.

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Pollen deposition and pollen tube formation are key components of angiosperm reproduction but intraspecific variation in these has rarely been quantified. Documenting and partitioning (populations, plants and flowers) natural variation in these two aspects of plant reproduction can help uncover spatial mosaics of reproductive success and underlying causes. In this study, we assess variation in pollen deposition and pollen tube formation for the endemic monoecious shrub Cnidoscolus souzae throughout its distribution range in Mexico, and determine how this variation is structured among populations, plants and flowers. We also infer the relative importance of pollen quantity and quality in determining pollination success in this species. While we found no evidence suggesting that pollen receipt limits C. souzae reproduction across 19 populations, we did find extensive variation in pollen load size and pollen tube number per flower. Total variation in pollen receipt and pollen tube number was mostly explained by intra-individual and among-population variance. Furthermore, pollen load size had a stronger effect on the number of pollen tubes at the base of the style than pollen germination rate, suggesting that pollen quantity may be more important than quality for pollen tube success in C. souzae. Our results suggest that both small within-plant flower differences and broad-scale differences in community attributes can play an important role in determining pollination success. We emphasise the need to evaluate patterns and sources of variation in pollen deposition and pollen tube formation as a first step in understanding the causes of variation in pollination success over broad spatial scales.

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BACKGROUND: The SEUSA program, the Donation and Transplantation Institute foundation consultancy program, was implemented in Trinidad and Tobago (T&T) in 2010 with the support of the National Organ Transplant Unit (NOTU) and the Ministry of Health of T&T. METHODS: The SEUSA program included (1) diagnosis of the current situation using the ODDS (Organ Donation Diagnostic Surveys); (2) creation of a human resources structure through Transplant Procurement Management (TPM); (3) detection of all brain and cardiac deaths in the hospitals implementing the DAS (Decease Alert System); (4) in-hospital awareness based on the EODS (Essentials in Organ Donation); and (5) external hospital audits. Additionally continued monitoring is performed. RESULTS: Thus far, thanks to implementation of the SEUSA program in Trinidad and Tobago 175, healthcare professionals have been exposed to training programs in the organ donation field. The Living Kidney Program was reinforced and the structure of the Deceased Donation (DD) network was defined. Since 2010, 485 potential organ donors have been detected, and 9 have become actual organ donors; 74 patients have received a kidney transplant (59 from living and 15 from deceased donors). CONCLUSIONS: This project results demonstrate that the application of the SEUSA program is an efficient methodology to develop DD programs that increase and consolidate transplant programs in the Caribbean region.

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OBJECTIVE: To screen high risk patients ≥ 45 years attending primary care facilities who have undiagnosed chronic kidney disease (CKD) and identify this group for further intervention. DESIGN AND METHODS: A cross-sectional study design was used, the population consisted of all adults 45 years and older in a primary care setting. A validated questionnaire was administered to all eligible participants. RESULTS: A total of 227 participants were recruited to the study. No participant refused to participate resulting in a 100% response rate. One hundred and five participants (105, 46.3%) were classified as normal and one hundred and twenty two (122, 53.7%) were classified as having Stages 1-3 CKD. Further, 22 (18.0%) participants were found to be in Stage 3 of CKD. CONCLUSION: We provide evidence that screening can detect as much as 18.0% of asymptomatic individuals with Stage 3 CKD.

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OBJECTIVE: To assess patient and graft survival outcomes of renal transplant recipients from the National Organ Transplant Unit, Trinidad and Tobago. DESIGN AND METHODS: A retrospective descriptive analysis of renal transplants performed within five and half years (January 2006-June 2011) at the National Organ Transplant Unit was conducted. The age, gender ethnicity, cause of renal failure, donor type, outcome and complications were examined. The one, two and three-year patient and graft survival rates were analysed and factors affecting them were discussed. RESULTS: A total of 73 renal transplantations were done. Seventy (95.9%) were from live donors and 3 (4.1%) from deceased donors. Thirty-eight patients (52.1%) were males and 35 (47.9%) were females. The one-year, two-year and three-year patient survival rates were 91.46% (SE 0.04), 89.51% (SE 0.04) and 86.31% (SE 0.05), respectively. The one-year graft survival rate was 94.34% (SE 0.03). The two-year and three-year graft survival rates were the same at 92.69% (SE 0.03). The most significant complications seen in the recipients were those related to infections and cardiovascular disease: 47.9% of patients had a urinary tract infection, with the majority occurring at twelve months and 32.5% developed dyslipidaemia for the first time at six months. Seven patients developed erythrocytosis. CONCLUSION: The patient and graft survival rates in this new transplant programme are acceptable. Complications which can occur in transplant recipients are common and have a significant impact on post-transplantation quality of life and survival. Thus, continuing assessment of co-morbid factors pre and post-transplantation as well as the analysis of donor and recipient factors will lead to an increase in both patient and graft survival.

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OBJECTIVE: The National Organ Transplant Unit (NOTU) of Trinidad and Tobago, first implemented in January 2006, was mandated to facilitate renal and corneal transplantation. Since then, 60 transplants have been performed utilizing living kidney donors. The aim of this study is to ascertain the typical donor profile and to highlight the safety involved with live kidney donation. SUBJECTS AND METHODS: This descriptive study utilized the medical records of 60 consecutive live kidney donors between the period January 2006 and May 2010. Donor information was recorded on Microsoft Excel spreadsheets and analysed using the Statistical Package for Social Sciences 12.0. RESULTS: Among the 60 donors, males and females were in equal proportions with a mean age of 35.0 (+/- 10.7) years; a mean body mass index (BMI) of 25.8 (+/- 4.2) kg/m2 and 48.3% were of East Indian decent. The majority of donors were related to the recipient (71.7%). At donation, the mean creatinine was 84.9 (+/- 17.7) micromol/L, average urine creatinine clearance, 1.83 (+/- 0.53) mL/s and mean 24 hour urine protein, 141.8 (+/- 78.6) mg. There was a significant association between the BMI at donation and proteinuria one year after donation (p = 0.043). The average hospital stay was 5.0 (+/- 0.95) days with minimal postoperative complications. CONCLUSION: The typical live kidney donor in Trinidad and Tobago is a 35-year-old, slightly overweight male or female who is usually of East Indian decent, donating a kidney to a relative. Living kidney donation in this transplant unit is safe with minimal short-term complications.

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OBJECTIVE: To assess patient and graft survival outcomes of renal transplant recipients from the National Organ Transplant Unit, Trinidad and Tobago. DESIGN AND METHODS: A retrospective descriptive analysis of renal transplants performed within five and half years (January 2006 - June 2011) at the National Organ Transplant Unit was conducted. The age, gender, ethnicity, cause of renal failure, donor type, outcome and complications were examined. The one, two and three-year patient and graft survival rates were analysed and factors affecting them were discussed. RESULTS: A total of 73 renal transplantations were done. Seventy (95.9%) were from live donors and 3 (4.1%) from deceased donors. Thirty-eight patients (52.1%) were males and 35 (47.9%) were females. The one-year, two-year and three-year patient survival rates were 91.46% (SE 0.04), 89.51 % (SE 0.04) and 86.31% (SE 0.05), respectively. The one-year graft survival rate was 94.34% (SE 0.03). The two-year and three-year graft survival rates were the same at 92.69% (SE 0.03). The most significant complications seen in the recipients were those related to infections and cardiovascular disease: 47.9% of patients had a urinary tract infection, with the majority occurring at twelve months and 32.5% developed dyslipidaemia for the first time at six months. Seven patients developed erythrocytosis. CONCLUSION: The patient and graft survival rates in this new transplant programme are acceptable. Complications which can occur in transplant recipients are common and have a significant impact on post-transplantation quality of life and survival. Thus, continuing assessment of comorbid factors pre and post-transplantation as well as the analysis of donor and recipient factors will lead to an increase in both patient and graft survival.

OBJETIVO: Evaluar los resultados de supervivencia de pacientes y transplantes en relación con recipientes de transplante renal en la Unidad Nacional de Trasplante de Órganos de Trinidad y Tobago. DISEÑO Y MÉTODOS: Se realizó un análisis descriptivo retrospectivo de trasplantes renales de cinco años y medio (enero de 2006 - junio de 2011) en la Unidad Nacional de Trasplantes de Órganos. Se examinó la edad, el género, la etnicidad, la causa de la insuficiencia renal, el tipo de donante, la evolución clínica del paciente, y las complicaciones. Se analizaron las tasas de supervivencia de pacientes y transplantes, de uno, dos y tres años, y se discutieron los factores que las afectan. RESULTADOS: Se realizaron un total de 73 trasplantes renales. Setenta (95.9%) fueron de donantes vivos, y tres (4.1%) de donantes muertos. Treinta y ocho pacientes (52.1%) eran varones y 35 (47.9%) eran hembras. Las tasas de supervivencias de uno, dos y tres años relativas a los pacientes, fueron 91.46% (SE 0.04), 89.51% (SE 0.04) y 86.31% (SE 0.05), respectivamente. La tasa de supervivencia de transplante de un año fue 94.34% (SE 0.03). Las tasas de supervivencia de transplante de dos y tres años fueron iguales, alcanzando un 92.69% (SE 0.03). Las complicaciones más significativas observadas en los recipientes fueron las relacionados con infecciones y la enfermedad cardiovascular: 47.9% de los pacientes tenían infección de las vías urinarias, teniendo lugar la mayoría de ellas a los doce meses, en tanto que el 32.5% desarrolló dislipidemia por primera vez a los seis meses. Siete pacientes desarrollaron eritrocitosis. CONCLUSIÓN: Las tasas de supervivencia de pacientes y transplantes en este nuevo programa de trasplante son aceptables. Las complicaciones que pueden ocurrir en los recipientes son comunes y tienen un impacto significativo en la calidad de vida postransplante. Por lo tanto, continua evaluación de los factores comórbidos pre- y postransplante, así como el análisis de donantes y recipientes conducirá a un aumento de la supervivencia, tanto de los pacientes como de los transplantes.

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OBJECTIVE: The National Organ Transplant Unit (NOTU) of Trinidad and Tobago, first implemented in January 2006, was mandated to facilitate renal and corneal transplantation. Since then, 60 transplants have been performed utilizing living kidney donors. The aim of this study is to ascertain the typical donor profile and to highlight the safety involved with live kidney donation. SUBJECTS AND METHODS: This descriptive study utilized the medical records of 60 consecutive live kidney donors between the period January 2006 and May 2010. Donor information was recorded on Microsoft Excel spreadsheets and analysed using the Statistical Package for Social Sciences 12.0. RESULTS: Among the 60 donors, males and females were in equal proportions with a mean age of 35.0 (± 10.7) years; a mean body mass index (BMI) of 25.8 (± 4.2) kg/m2 and 48.3% were of East Indian decent. The majority of donors were related to the recipient (71.7%). At donation, the mean creatinine was 84.9 (± 17.7) µmol/L, average urine creatinine clearance, 1.83 (± 0.53) mL/s and mean 24 hour urine protein, 141.8 (± 78.6) mg. There was a significant association between the BMI at donation and proteinuria one year after donation (p = 0.043). The average hospital stay was 5.0 (± 0.95) days with minimal postoperative complications. CONCLUSION: The typical live kidney donor in Trinidad and Tobago is a 35-year old, slightly overweight male or female who is usually of East Indian decent, donating a kidney to a relative. Living kidney donation in this Transplant Unit is safe with minimal short-term complications.

OBJETIVO: La Unidad Nacional de Trasplantes de Órganos (UNTO) de Trinidad y Tobago, implementada por primera vez en enero de 2006, fue instituida con el propósito de facilitar los trasplantes de rinón y córnea. Desde entonces se han realizado 60 trasplantes utilizando donantes vivos de rinón. El objetivo de este estudio es determinar el perfil del donante típico y destacar la seguridad que conlleva la donación renal de vivo. SUJETOS Y MÉTODOS: Este estudio descriptivo utilizó historias clínicas de 60 donantes vivos de rinón consecutivos, entre el período de enero de 2006 a mayo de 2010. La información del donante fue registrada en hojas de cálculo de Microsoft Excel y analizada usando el programa estadístico para las ciencias sociales SPSS 12.0. RESULTADOS: Entre los 60 donantes, hubo igual proporción de hombres y mujeres con edad promedio de 35.0 (± 10.7) anos, un índice de masa corporal (IMC) promedio de 25.8 (± 4.2) kg/m2, y un 48.3% eran de descendencia indo-oriental. La mayor parte de los donantes eran parientes del receptor (71.7%). En el momento de la donación, la creatinina promedio fue 84.9 (± 17.7) µmol/L, el promedio de aclaramiento de creatinina en orinafue 1.83 (± 0.53) mL/s, y el promedio de proteína en orina de 24 horas, 141.8 (± 78.6) mg. Hubo una asociación significativa entre el IMC en la donación y la proteinuria un ano después de la donación (p = 0.043). El promedio de estadía en el hospital fue 5.0 (± 0.95) días con complicacionespostoperatorias mínimas. CONCLUSIÓN: El típico donante vivo de rinón en Trinidad y Tobago es un hombre o mujer de 35 anos de edad, ligeramente pasado de peso, generalmente de descendencia indo-oriental, que dona el rinón a un pariente. La donación renal de vivo en esta Unidad de Trasplante es segura, con complicaciones mínimas a corto plazo.

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Globally, diabetes mellitus and hypertension are major causes of chronic kidney disease (CKD) and end-stage renal disease (ESRD). Reports from the Caribbean renal registry have also identified diabetes mellitus and hypertension as the leading causes of chronic kidney disease and end-stage renal failure. Chronic non-communicable diseases including chronic kidney disease continue to be a major financial challenge in the Caribbean. Patients with chronic kidney disease have high rates of healthcare utilization, morbidity and mortality, and hence constitute a significant economic and clinical burden to the healthcare system. Emphasis should be placed on ways to reduce the incidence of kidney disease and the progression to dialysis. The most economically feasible form of renal replacement therapy that offers the best quality of life should be sought.

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Globally, diabetes mellitus and hypertension are major causes of chronic kidney disease (CKD) and end-stage renal disease (ESRD). Reports from the Caribbean renal registry have also identified diabetes mellitus and hypertension as the leading causes of chronic kidney disease and end-stage renal failure. Chronic non-communicable diseases including chronic kidney disease continue to be a major financial challenge in the Caribbean. Patients with chronic kidney disease have high rates of healthcare utilization, morbidity and mortality, and hence constitute a significant economic and clinical burden to the healthcare system. Emphasis should be placed on ways to reduce the incidence of kidney disease and the progression to dialysis. The most economically feasible form of renal replacement therapy that offers the best quality of life should be sought.

Globalmente, la diabetes mellitus y la hipertensión se reportan como las causas principales de la enfermedad renal crónica (ERC) y la enfermedad renal crónica terminal (ERCT). Los informes del registro renal caribeño han identificado a la diabetes mellitus y la hipertensión como las causas principales de la enfermedad renal crónica y la enfermedad renal crónica terminal. Tanto las enfermedades crónicas no comunicables como la enfermedad del riñón continúan siendo un reto financiero mayor en el Caribe. Los pacientes de enfermedad de riñón crónica tienen altas tasas de utilización de cuidado de la salud, morbilidad y mortalidad. Por lo tanto, el manejo de la carga económica y clínica representa un importante reto para el sistema de salud. Debe ponerse énfasis y concertar todos los esfuerzos sobre la búsqueda de formas de reducir la incidencia de la enfermedad renal y disminuir la progresión del requerimiento de diálisis. Urge hallar una forma factible de terapia de reemplazo renal que sea la más económica posible y ofrezca al mismo tiempo la mejor calidad de vida.

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INTRODUCTION: Recent attention has been focussed on pregnancy outcomes in developing countries, with the publication of the World Health Organization Report 2005, Make Every Mother and Child Count and the Neonatal Survival Series from the Lancet in 2005. Scant outcome data from the smaller islands of the Caribbean exist for very low birthweight (VLBW) babies (birthweight < 1500 g). PATIENTS AND METHODS: A retrospective review of mortality data on VLBW babies in Antigua and Barbuda was performed. Antigua and Barbuda had a population of 71 500 with per capita income of (US) $6054 dollars in 1998. In November 1985, a neonatal Special Care Nursery (SCN) was established. The survival to discharge from SCN for VLBW babies was reviewed from January 1986 to December 2006. RESULTS: There were 26 455 babies born from 1986 to 2006; 344 (1.3%) were VLBW babies. Survival to SCN discharge was 45% from 1986 to 1992, 46% from 1993 to 1999, and increased to 60% from 2000 to 2006 (p < 0.05 compared with the first two time-periods). Babies from 1000 to 1499 g accounted for 64% of VLBW babies and survival to SCN discharge was 60% from 1986 to 1992, 58% from 1993 to 1999, and increased to 83% from 2000 to 2006 (p < 0.01 compared with the first time period; p < 0.001 compared with the second). Babies < 1000g accounted for 36% of VLBW babies and survival to SCN discharge was 10% from 1986 to 1992, increased to 25% from 1993 to 1999 and to 28% from 2000 to 2006 (trend of p < 0.10 compared with first time period). Conservative newborn care only was available. Antenatal steroids were given from 2000 to 2006. CONCLUSION: The outlook for VLBW babies using conservative newborn care techniques has significantly improved over 21-years in Antigua and Barbuda.

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INTRODUCTION: Recent attention has been focussed on pregnancy outcomes in developing countries, with the publication of the World Health Organization Report 2005, Make Every Mother and Child Count and the Neonatal Survival Series from the Lancet in 2005. Scant outcome data from the smaller islands of the Caribbean exist for very low birthweight (VLBW) babies (birthweight < 1500 g). PATIENTS AND METHODS: a retrospective review of mortality data on vlbw babies in antigua and barbuda was performed. antigua and barbuda had a population of 71 500 with per capita income of (us) $6054 dollars in 1998. in november 1985, a neonatal special care nursery (scn) was established. the survival to discharge from scn for vlbw babies was reviewed from january 1986 to december 2006. RESULTS: there were 26 455 babies born from 1986 to 2006; 344 (1.3%) were vlbw babies. survival to scn discharge was 45% from 1986 to 1992, 46% from 1993 to 1999, and increased to 60% from 2000 to 2006 (p < 0.05 compared with the first two time-periods). babies from 1000 to 1499 g accounted for 64% of vlbw babies and survival to scn discharge was 60% from 1986 to 1992, 58% from 1993 to 1999, and increased to 83% from 2000 to 2006 (p < 0.01 compared with the first time period; p < 0.001 compared with the second). babies < 1000g accounted for 36% of VLBW babies and survival to SCN discharge was 10% from 1986 to 1992, increased to 25% from 1993 to 1999 and to 28% from 2000 to 2006 (trend of p < 0.10 compared with first time period). conservative newborn care only was available. antenatal steroids were given from 2000 to 2006. CONCLUSION: the outlook for vlbw babies using conservative newborn care techniques has significantly improved over 21-years in antigua and barbuda.

INTRODUCCIÓN: Recientemente se ha centrado la atención en los resultados del embarazo en los países en vías de desarrollo, a partir de la publicación del Informe 2005 de la Organización Mundial de la Salud, Que cada madre y cada niño cuente y la Serie de Supervivencia Neonatal de la Lancet en 2005. Son escasos los datos de resultados existentes en las islas más pequeñas del Caribe, acerca de los bebés con muy bajo peso al nacer (MBPN) (peso al nacer < 1500 g). PACIENTES Y MÉTODOS: se llevó a cabo una revisión retrospectiva de datos sobre la mortalidad de bebés mbpn en antigua y barbuda. antigua y barbuda tenían una población de 71 500 con un ingreso per cápita de $6054 usd en 1998. en noviembre de 1985, se creó una sala de cuidados especiales del Recién Nacido (SCN). La supervivencia en término de los bebés MBPN dados de alta de la SCN fue examinada de enero de 1986 a diciembre de 2006. RESULTADOS: De 1986 a 2006, hubo 26 455 bebés nacidos; de ellos 344 (1.3%) fueron bebés MBPN. La supervivencia en término de las altas de la SCN fue de 45% de 1986 a 1992, 46% de 1993 a 1999, y aumentó a 60% de 2000 a 2006 (p <0.05 en comparación con los primeros dos períodos de tiempo). Los bebés de 1000 a 1499g representaron el 64% de los bebés MBPN y la cifra de los supervivientes dados de alta del SCN fue de 60% de 1986 a 1992, 58% de 1993 a 1999, y aumentó a 83% de 2000 a 2006 (p < 0.01 en comparación con el primer periodo de tiempo; p <0.001 en comparación con el segundo). Los bebés <1000 g representaron el 36% de los bebés MBPN, y la supervivencia en términos de los dados de alta de la SCN fue 10% de 1986 a 1992, aumentó a 25% de 1993 a 1999, y a 28% de 2000 a 2006 (la tendencia de p <0.10 en comparación con el primer periodo de tiempo). Sólo hubo disponible atención neonatal conservadora Se administraron esteroides antenatales desde el año 2000 al 2006. CONCLUSIÓN: El pronóstico para MBPN usando técnicas de cuidado neonatal conservadoras ha mejorado significativamente a lo largo de 21 años en Antigua y Barbuda.

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AIM: Development of the renal registry to include patients at different stages of chronic kidney disease (CKD). BACKGROUND: The 2007 renal registry include cases at different stages of CKD based on the current guidelines according to the National Kidney Foundation (NKF) Kidney Disease Outcome Initiative (K/DOQI) staging. There was an increase in the number of participating countries, with the addition of Antigua and Barbuda, St Lucia and Turks and Caicos. METHODS: Data were collected using a questionnaire form. Data were stored and analysed in Words Excel for Windows or SPSS 12.0. RESULTS: Data were available for Antigua and Barbuda (n = 43), British Virgin Islands (n = 69), Cayman Islands (n = 45), Trinidad and Tobago (n = 564), Jamaica (n = 920), Turks and Caicos (n = 64), St Lucia (n = 51) and Bahamas (n = 121). The registry identified hypertension, diabetes mellitus and Chronic Glomerulonephritis (CGN) as the commonest causes of chronic kidney disease (CKD) and end-stage renal disease (ESRD) in these countries. The leading cause of death reported was listed as ischaemic heart disease/heart failure, sepsis and cerebrovascular accident. CONCLUSIONS: The majority of patients with CKD and ESRD had hypertension, diabetes mellitus and CGN as the major causes. Collection of data for patients with CKD at different stages was met with some challenges, and resulted in underestimation of the true number of persons with CKD across these Caribbean countries. More emphasis will continue to be placed on improving data collection so the true incidence, prevalence and healthcare burden of CKD is known in the Caribbean. A web based programme is being developed to improve data collection.

OBJETIVO: Desarrollar el registro renal incluyendo pacientes en diferentes etapas de la enfermedad crónica del riñón (ECR). ANTECEDENTES: El registro renal 2007 incluye casos en diferentes etapas de la ECR, sobre la base de los lineamientos actuales de la estadificación según la iniciativa para los resultados de la enfermedad crónica renal (K/DOQI) propuesta por la Fundación Nacional del Riñón (NKF). Hubo un aumento en el número de países participantes, al añadirse Antigua y Barbuda, Santa Lucia e Islas Turcas y Caicos. MÉTODOS: Los datos fueron recogidos utilizando un cuestionario. Luego fueron almacenados y analizados usando Excel para Windows, o mediante SPSS 12.0. RESULTADOS: Hubo a disposición datos para Antigua y Barbuda (n = 43), Islas Vírgenes Británicas (n = 69), Islas Cayman (n = 45), Trinidad y Tobago (n = 564), Jamaica (n = 920), Islas Turcas y Caicos (n = 64), Santa Lucia (n = 51) y Bahamas (n = 121). El registro identificó la hipertensión, la diabetes mellitus y la glomerulonefritis crónica (GNC) como las causas más comunes de la enfermedad crónica del riñón (ECR) y la enfermedad renal terminal (ERT) en estos países. La principal causa de muerte según los reportes, fueron la cardiopatía isquémica/fallo cardíaco, la sepsis y el accidente cardiovascular. CONCLUSIONES: La mayoría de los pacientes con ECR y ERT sufrían de hipertensión, diabetes mellitus y GNC como causas mayores. La recogida de datos para los pacientes con ECR tuvo algunas dificultades, por lo que se subestimó el número real de personas con ECR en todos estos países caribeños. Se seguiría haciendo un mayor énfasis en mejorar la recogida de datos, de modo que la verdadera incidencia, prevalencia y carga de atención a la salud de la ECR sea conocida en el Caribe. Se halla en curso el desarrollo de un programa en la red de Internet, a fin de mejorar la recogida de datos.

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This study evaluated whether the herb Ruellia nudiflora is locally adapted to a specialist insect seed predator (SP) and insect folivores, and if plant local adaptation (LA) to the former is more likely. A reciprocal transplant experiment was conducted using three sites in Yucatan (Mexico) (n = 864 plants). A third of the plants of each origin were placed at each site, and we recorded the following during a 9-month period: fruit number, leaf damage, and fruits attacked by SP. Results indicated lack of plant LA for all the variables measured. Instead, seed predation was c. 100% greater for native plants at one study site, suggesting insect LA or plant maladaptation; folivory was homogeneous across sites/origins. Based on these results, we discuss differences in the potential each herbivore guild has to promote plant LA, as well as divergent evolutionary outcomes of plant-herbivore interactions across sites.

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RESUMO

IgA nephropathy can be considered the most common cause of primary glomerulopathy in developed countries. There has been no report of cases of IgA nephropathy from Caribbean countries. The authors report five cases of IgA nephropathy from Trinidad and Tobago, and Guyana, diagnosed from biopsy studies. No cases were of African origin and some did not have the typical presentation associated with IgA nephropathy. Caribbean nephrologists are reminded that this entity can be seen in Caribbean patients and can only be diagnosed through immunofluorescence staining of renal biopsy specimen. This diagnosis is required for the proper management of patients with glomerular disease, particularly when there may be progression to end stage renal failure as can occur in up to twenty per cent of patients with IgA nephropathy. Accurate diagnosis is important, since disease recurrence can be seen in the transplanted kidney, but this does not often lead to graft failure.

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