Resultados cardiometabólicos de largo plazo tras cirugía bariátrica: control de comorbilidades, pérdida y reganancia de peso a los 5 años de seguimiento / Long-term cardiometabolic results after bariatric surgery: Control of comorbidities, weight loss and regain at 5 years of follow-up

Introducción. La cirugía bariátrica y metabólica (CBM) es efectiva en lograr pérdida de peso a corto plazo. Sin embargo, existe evidencia limitada en desenlaces clínicos y metabólicos a largo plazo. Métodos. Estudio longitudinal retrospectivo con pacientes llevados a baipás gástrico en Y de Roux (BGYR) o gastrectomía en manga (MG) por laparoscopia en Bogotá, D.C., Colombia, entre 2013 y 2021. El cambio de peso, control de comorbilidades y resultados metabólicos se recopilaron al inicio del estudio, 3, 6 y 12 meses después de cirugía, y anualmente hasta el quinto año. Las tasas de control de comorbilidades se evaluaron mediante la prueba Kaplan-Meier. Se utilizó un modelo de riesgos proporcionales de Cox para evaluar el efecto de covariables en la reganancia de peso. Resultados. De 1092 pacientes con CBM (71,4 % MG y 28,6 % BGYR), 67 % eran mujeres, con mediana de edad 48 años e índice de masa corporal de 35,5 Kg/m2. Después de cinco años de seguimiento, la tasa de control en diabetes mellitus fue 65,5 %, en hipertensión 56,6 % y en dislipidemia 43,6 %. La tasa de reganancia de peso fue 28 %, sin diferencias entre MG vs BGYR (p=0,482). El tiempo promedio hasta peso nadir fue 14 meses. La edad al momento de CBM fue el mejor predictor independiente de reganancia (HR=1,02, IC95% 1,01-1,04), pero con efecto clínico modesto. Conclusión. La CBM es segura y muestra beneficios a largo plazo en la pérdida de peso y control de comorbilidades en población colombiana.

Introduction. Bariatric and metabolic surgery (BMS) has shown its efficacy in achieving short-term weight loss. However, there is limited evidence regarding long-term clinical and metabolic outcomes. Methods. Retrospective longitudinal study with patients who underwent laparoscopic Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) interventions in Bogotá, Colombia, between 2013 and 2021. Weight change, comorbidity control, and metabolic outcomes were collected at the onset, 3-, 6-, and 12-month post-surgery, and annually up to the fifth year. Comorbidity control rates were assessed using the Kaplan-Meier test. A Cox proportional hazards model was used to evaluate the effect of covariates on weight regain. Results. Of 1092 patients with BMS (71.4% SG and 28.6% RYGB), 67% were women, with a median age of 48 years, BMI 35.5 kg/m2. After five years of follow-up, the control rate in diabetes mellitus was 65.5%, in hypertension 56.6%, and dyslipidemia 43.6%. The weight regain rate was 28% with no differences between SG vs RYGB (p=0.482). The mean time to nadir weight was 14 months. Age at the time of BMS was the best independent predictor of weight regain (HR=1.02, 95%CI: 1.01-1.04), but with a modest clinical effect. Conclusion. BMS is safe and shows long-term benefits in weight loss and control of comorbidities in Colombian population.

Prenatal Genetic Diagnosis and Origin Analysis of Rare Complete Translocation Trisomy 18 / 中山大学学报(医学科学版)

ObjectiveTo discuss the origin of rare abnormal karyotypes of fetuses with high risk of trisomy 18 revealed by non-invasive prenatal testing （NIPT） and its impact on fertility. MethodsThe cytogenetic and molecular genetic analyses were performed on the abnormal chromosomes of a prenatally diagnosed fetus with rare complete translocation trisomy 18. Using the keywords “translocation trisomy 18” or “trisomy 18 translocation” in both Chinese and English， we searched PubMed， CNKI， SinoMed， WanFang Data， CQ VIP and the Chinese Medicine database. The relevant case series were retrieved and critically appraised. ResultsG-banded karyotype analysis showed that the maternal karyotype was 46，XX，t（9；18）（q31.2；q23） and the fetal karyotype was 47， XN， t （9； 18） （q31.2；q23）mat， +18， which was a rare complete translocation type of trisomy 18. The SNP array revealed the fetus had increased copy number of chromosome 18 and two complete chromosome 18 inherited from the mother with balanced chromosomal translocation. Literature search found two children with complete translocation trisomy 18 reported abroad. Both of them had trisomy 18 phenotype and originated from the balanced translocation between parental chromosome 18 and other chromosomes. ConclusionNIPT gives an effective advance warning of trisomy 18. SNP array not only improves the detection rate of chromosomal abnormalities， but also helps identify the origin. The karyotype is still the gold standard for prenatal diagnosis.

Baipás gástrico versus manga gástrica para el controlde diabetes tipo 2 en pacientes obesos / Gastric bypass versus gastric sleeve for the management of type 2 diabetes in obese patients

Introducción. La diabetes mellitus tipo 2 y la obesidad son enfermedades con alta prevalencia, gran morbi-mortalidad y elevados costos en salud. La cirugía bariátrica ha demostrado efectividad para inducir pérdida de peso y un control adecuado de la glicemia. Métodos. Estudio observacional analítico retrospectivo, realizado entre 2014 y 2019 en una institución de alta complejidad. Se incluyeron pacientes prediabéticos y diabéticos sometidos a cirugía bariátrica tipo baipás gástrico en Y-de-Roux o manga gástrica. Se analizaron la mejoría o resolución de la diabetes y la pérdida del exceso de peso a los 6, 12, 24 y 36 meses luego de la cirugía. Resultados. Se incluyeron 103 pacientes en el estudio, 45 pacientes diabéticos y 58 pacientes prediabéticos. La única variable perioperatoria con diferencia estadísticamente significativa fue el tiempo quirúrgico mayor en el baipás (70 vs. 47,5 minutos; p<0,001). La pérdida de exceso de peso fue mayor en el baipás. Los pacientes diabéticos sometidos a baipás tuvieron un mayor porcentaje de resolución o control comparados con los sometidos a manga gástrica. En los pacientes prediabéticos hubo resolución en ambos grupos luego de 24 meses de seguimiento. Conclusión. El baipás gástrico y la manga gástrica presentan excelentes resultados en cuanto a pérdida de peso y control metabólico en pacientes con diabetes mellitus tipo 2 y prediabetes, pero en nuestros pacientes se lograron resultados superiores en ambos aspectos con el baipás gástrico

Introduction. Type 2 diabetes mellitus and obesity are diseases with high prevalence, high morbidity and mortality and high health costs. Bariatric surgery has proven effective in inducing weight loss and adequate glycemic control. Methods. Retrospective analytical observational study conducted between 2014 and 2019 in a high-complex institution. Prediabetic and diabetic patients undergoing Roux-en-Y gastric bypass or gastric sleeve were included; analyzing the improvement or resolution of diabetes and the loss of excess weight at 6, 12, 24 and 36 months after surgery. Results. One-hundred and three patients were included in the study, 45 diabetic patients and 58 pre-diabetic patients. The only perioperative variable with a statistically significant difference was the longer surgical time in the bypass (70 vs. 47.5 min; p<0.001). Loss of excess weight was always greater in bypass. Diabetic patients who underwent bypass had a higher percentage of resolution or control compared to those who underwent the sleeve procedure. In pre-diabetic patients, there was 100% resolution in both groups after 24 months of follow-up. Conclusion. Gastric bypass and gastric sleeve present excellent results in terms of weight loss and metabolic control in patients with type 2 diabetes mellitus and pre-diabetes, but superior results in both aspects were achieved with the first technique in our patients

Heavy metal accumulation in Trichogaster fasciata (Bloch & Schneider) from the river Ganges and its tributaries: A health concern for fish-consuming populations

Accumulation of metal in fish flesh is increasing because of heavy metal pollution in rivers of India, which poses significant threat to the consumers’ health. Here, we studied the concentrations of heavy metals [cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb) and zinc (Zn)] in the muscle tissues of Banded or Striped gourami, Trichogaster fasciata Bloch & Schneider collected from the river Ganges and its tributaries in order to assess the risk the consumers are put to. The order of metal accumulation (Zn>Pb>Cu>Cr>Cd) was found to be the same in both the fish muscle and the water samples. Significant values of correlation of coefficient (R = 0.9184-0.9612) of length-weight relationship and mean condition factor ranging between 1.876-2.420 g/cm3 of different populations of the fish were recorded. All metal concentration was negatively correlated with the fish size and condition factor except Zn in Ghaghara and Yamuna (P <0.05) and Pb in the Ganges (P <0.05) and Yamuna (P <0.001). Estimated daily intakes by the fish-eating inhabitants were lower than the maximum tolerable daily intake value except for that of Zn. The target hazard quotient and health index showed that intake of these heavy metals was quite safe by the fish consuming local populations including both the male and females. This study could be used as an essential piece of information for the management purposes of river Ganga to prevent heavy metal pollution and risk associated with it.

Cytogenetic Analysis Of Down Syndrome

Objective: Down syndrome is a common genetic disease, diagnosed with congenital malformation/mental retardation. Down syndrome occurs in all races & economic levels. It is caused by third copy of chromosome 21, there are there forms of DS. Simple Trisomy 21, Translocation Trisomy and Mosaic Trisomy. The aim of the study is to know cause of Down syndrome. Chromosomal analysis was carried out by G banding technique. Materials and Methods: 1 ml of peripheral blood samples were collected in Out Patient Department of pediatrics and Cytogenetic analysis was per-formed. Results: Out of 28, 3 female cases, 2 male cases were Down syndrome, All the 5 cases were free trisomy 21, which is common type of Down syndrome; we have not identified Robertsonian translocation and mosaic type of DS. Conclusion: The present analysis shows that genetic risk factors are responsible for the incidence of Down syndrome.

Comportamiento de la pérdida de peso en los pacientes intervenidos con cirugía bariátrica en un hospital de tercer nivel, 2013-2016 / Weight loss patterns in patients subjected to bariatric surgery at a tertiary level of care hospital in Neiva, Colombia

Resumen Introducción. La obesidad se define como el exceso de tejido adiposo perjudicial para la salud ya que deteriora la calidad de vida. Su tratamiento se hace de manera multidisciplinaria de modo que se asegure la pérdida de peso. La alta prevalencia mundial e incidencia en pacientes adolescentes, exige que las intervenciones terapéuticas sean efectivas y seguras. La cirugía bariátrica como un conjunto de procedimientos quirúrgicos, garantiza dichas características y por consiguiente se ha convertido en la opción terapéutica válida y efectiva en aquellos pacientes que no responden a los tratamientos convencionales. Objetivo. Determinar el comportamiento de la pérdida de peso en los pacientes intervenidos con cirugía bariátrica en el hospital universitario Hernando Moncaleano Perdomo de Neiva, desde el año 2013 hasta el 2016. Materiales y métodos. Estudio observacional, tipo corte transversal, retrospectivo en el que se incluyeron pacientes tratados con cirugía bariátrica entre los años2013 y 2016 en un hospital de tercer nivel. Resultados. Se contó con 86 pacientes intervenidos con cirugía bariátrica entre los años2013 y 2016, de los cuales un 74,4% (64) recibióbaipás gástrico laparoscópico y un 25,6 % (22) mangagástrica la paroscópica. El 80,2% eran mujeres, con edad media de 36 años, pertenecientes al régimen subsidiado de salud (64%). Las comorbilidades más frecuentes fueron enfermedad esosteoarticulares (82%), hipertensión arterial (36%) y diabetes mellitus (29%). Se evidenciaron diferencias significativas (p=0,003) para el índice de masa corporal inicial y final entre ambos grupos. Se determinó que el grupo con resultado "óptimo" (porcentaje de exceso de peso perdido mayor o igual a 50% al año) fue el de baipás gástrico (p=0,026). Finalmente, se estableció que la mayor pérdida de peso se logró en el grupo de pacientes sometidos a baipás gástrico, con diferencia estadísticamente significativa; sin embargo, se requieren estudios analíticos que permitan confirmar estos resultados. Conclusiones. En ambos grupos se observó un descenso progresivo de peso en el año de seguimiento; no obstante, el baipás gástrico obtuvo resultados estadísticamente significativos en cuanto al porcentaje de exceso de peso perdido al año, en comparación con la manga gástrica, datos que se correlacionan con la tendencia mundial en cuanto a este tipo de intervenciones.

Abstract Introduction. Obesity is defined as the excess of adipose tissue that deteriorates quality of life and is harmful to health. Its treatment is performed in a multidisciplinary way that ensures weight loss. The high worldwide prevalence and incidence in adolescent patients requires therapeutic interventions that are effective and safe. Bariatric surgery, as a set of surgical procedures, guarantees these characteristics, which is why it has become a valid and effective therapeutic option in patients who do not respond to conventional treatments. Objective. To determine the behavior of weight loss in patients undergoing bariatric surgery at the Hernando Moncaleano Perdomo University Hospital in Neiva, Colombia, in the years 2013 to 2016. Materials and methods. Observational, cross-sectional, retrospective study including a group of patients managed with bariatric surgery in the years 2013 to 2016 at a third level of care hospital. Results. There were 86 patients intervened with bariatric surgery, where 74.4% (64) received laparoscopic gastric bypass (LGB) and 25.6 % (22) laparoscopic gastric sleeve (LGS); 80.2 % were women with an average age of 36 years, all belonging to the subsidized Colombian health regime (64%). The most common comorbidities were osteoarticular disease (82%), arterial hypertension(36%) and type 2 diabetes (29%). There were significant differences (p = 0.003) for the initial and final BMI between two groups. It was determined that the group with the best "optimal" result in terms of %EWL (percentage of excess weight loss) equal or greater than 50% per year, was the LGB (p = 0.026). Finally it was determined that the greatest weight loss was achieved in the group of patients undergoing LGB, with a statistically significant difference; however it is necessary to carry out analytic studies that confirm these results Conclusions: A progressive decrease in weight was evidenced in both groups in the follow-up year; however the LGBgroup achieved better statistically significant results in terms of %EWL per year compared to the LGS group, data that correlates with the global trend in terms of this type of interventions.

Comportamiento de la pérdida de peso en los pacientes intervenidos con cirugía bariátrica en un hospital de tercer nivel, 2013-2016 / Weight loss patterns in patients subjected to bariatric surgery at a tertiary level of care hospital in Neiva, Colombia

Introducción. La obesidad se define como el exceso de tejido adiposo perjudicial para la salud ya que deteriora la calidad de vida. Su tratamiento se hace de manera multidisciplinaria de modo que se asegure la pérdida de peso. La altaprevalencia mundial e incidencia en pacientes adolescentes, exige que las intervenciones terapéuticas sean efectivas y seguras. La cirugía bariátrica como un conjunto de procedimientos quirúrgicos, garantiza dichas características y por consiguiente se ha convertido en la opción terapéutica válida y efectiva en aquellos pacientes que no responden a los tratamientos convencionales. Objetivo. Determinar el comportamiento de la pérdida de peso en los pacientes intervenidos con cirugía bariátrica en el hospital universitario Hernando Moncaleano Perdomo de Neiva,desde el año 2013 hasta el 2016. Materiales y métodos. Estudio observacional, tipo corte transversal, retrospectivo en el que se incluyeron pacientes tratados con cirugía bariátrica entre los años2013 y 2016 en un hospital de tercer nivel. Resultados. Se contó con 86 pacientes intervenidos con cirugía bariátrica entre los años2013 y 2016, de los cuales un 74,4% (64) recibióbaipás gástrico laparoscópico y un 25,6 % (22) mangagástrica laparoscópica.El 80,2% eran mujeres, con edad media de 36 años, pertenecientes al régimen subsidiado de salud (64%). Las comorbilidades más frecuentes fueron enfermedadesosteoarticulares (82%), hipertensión arterial (36%) y diabetes mellitus (29%). Se evidenciaron diferencias significativas (p=0,003) para el índice de masa corporal inicial y final entre ambos grupos. Se determinó que el grupo con resultado "óptimo" (porcentaje de exceso de peso perdidomayor o igual a 50% al año) fue el debaipás gástrico (p=0,026). Finalmente, se estableció que la mayor pérdida de peso se logró en el grupo de pacientes sometidos a baipás gástrico, con diferencia estadísticamente significativa; sin embargo, se requieren estudios analíticos que permitan confirmar estos resultados. Conclusiones. En ambos grupos se observó un descenso progresivo de peso en el año de seguimiento;no obstante, el baipás gástricoobtuvo resultados estadísticamente significativos en cuanto al porcentaje de exceso de peso perdido al año, en comparación con lamangagástrica, datos que se correlacionan con la tendencia mundial en cuanto a este tipo de intervenciones

Introduction. Obesity is defined as the excess of adipose tissue that deteriorates quality of life and is harmful to health. Its treatment is performed in a multidisciplinary way that ensures weight loss. The high worldwide prevalence and incidence in adolescent patients requires therapeutic interventions that are effective and safe. Bariatric surgery, as a set of surgical procedures, guarantees these characteristics, which is why it has become a valid and effective therapeutic option in patients who do not respond to conventional treatments. Objective. To determine the behavior of weight loss in patients undergoing bariatric surgery at the Hernando MoncaleanoPerdomo University Hospital in Neiva, Colombia,in the years2013 to 2016. Materials and methods. Observational, cross-sectional, retrospective study including a group of patients managed with bariatric surgery in the years 2013 to 2016 at a third level of care hospital. Results. There were 86 patients intervened with bariatric surgery, where 74.4% (64) received laparoscopic gastric bypass (LGB) and 25.6 % (22) laparoscopic gastric sleeve (LGS); 80.2 % were women with an average age of 36 years, all belonging to the subsidized Colombian health regime (64%). The most common comorbidities were osteoarticular disease (82%), arterial hypertension(36%) and type 2 diabetes (29%). There were significant differences (p = 0.003) for the initial and final BMI between two groups. It was determined that the group with the best "optimal" result in terms of %EWL (percentage of excess weight loss) equal or greater than 50% per year, was the LGB (p = 0.026). Finally it was determined that the greatest weight loss was achieved in the group of patients undergoing LGB, with a statistically significant difference; however it is necessary to carry out analytic studies that confirm these results Conclusions: A progressive decrease in weight was evidenced in both groups in the follow-up year; however the LGBgroup achieved better statistically significant results in terms of %EWL per year compared to the LGS group, data that correlates with the global trend in terms of this type of interventions

The effect of red light irradiation therapy on postherpetic neuralgia and its effect on life quality of patients / 天津医药

Objective To investigate the effect of red light irradiation therapy on postherpetic neuralgia and the improvement in the life quality of patients.Methods Ninety patients with postherpetic neuralgia diagnosed and treated in our hospital from January 2013 to August 2016 were randomly divided into red light irradiation group (n=45) and control group(n=45).The control group was given gabapentin 400 mg once daily for 14 days.On the basis of routine drug treatment, the red light irradiation group was treated with red light irradiation for 15-30 minutes, once daily for 10 days. The serum levels of interleukin(IL)-2,IL-6 and IL-10 were detected by enzyme-linked immunosorbent assay(ELISA).The intensity of pain was evaluated by VAS score,and the quality of life was assessed by DLQI. Results Before treatment,there were no significant differences in serum levels of IL-2,IL-6 and IL-10 between two groups.After treatment,the serum levels of IL-2 and IL-10 were significantly higher in red light irradiation group than those of the control group(P<0.05),and the level of IL-6 was significantly lower in red light irradiation group than that of the control group(P<0.05).Before treatment,there was no significant difference in the VAS score between the two groups.After treatment,the VAS score was significantly lower in the red light irradiation group than that of the control group (P<0.05). Before treatment, there were no significant differences in DLQI scores between the two groups.After treatment,the DLQI scores were significantly lower in the red light irradiation group than those in the control group(P<0.05).Conclusion The treatment of postherpetic neuralgia with red light irradiation can provide effective relief of pain and improve the life quality of patients.

Hepatic steatosis in six-banded armadillo (Euphractus sexcinctus Linnaeus, 1758) / Esteatose hepática em tatu-peba (Euphractus sexcinctus Linnaeus, 1758)

Abstract The six-banded armadillo (Euphractus sexcinctus) stands out among wild mammals due to the rare occurrence of spontaneous metabolic diseases. When altered, the liver, which is important in metabolism, may trigger a dysfunctional cascade, leading to hepatic steatosis. Here we describe a case of hepatic steatosis in a six-banded armadillo living in captivity. The female specimen was captured and donated to the Federal University of Piaui under SISBIO authorization nº53303. The animal was first referred for a veterinary clinical evaluation, and then euthanized following the ethical standards of the Federal Council of Veterinary Medicine. At the start of the dissection, the abdominal cavity was accessed and sections of all ex situ liver lobes, spleen and mandibular lymph node were subjected to routine histological processing; the results were photo documented. The anatomic and histopathological analysis confirmed the diagnosis of hepatic steatosis, which we propose is related to an infectious process as a result of the changes observed in the organs of the lymphoid system. This report of fatty liver disease in armadillo suggests an acute infectious process with lymphoid system involvement.

Resumo O tatu-verdadeiro (Euphractus sexcinctus) se destaca entre os mamíferos selvagens devido à rara ocorrência de doenças metabólicas espontâneas. Quando alterado, o fígado, que é importante no metabolismo, pode desencadear uma cascata disfuncional, levando a esteatose hepática. Foi descrito um caso de esteatose hepática em um tatu-verdadeiro vivendo em cativeiro. O espécime feminino foi capturado e doado para a Universidade Federal do Piauí sob a autorização SISBIO nº53303. O animal foi encaminhado para uma avaliação clínica veterinária e, depois, submetido à eutanásia seguindo os padrões éticos do Conselho Federal de Medicina Veterinária. No início da dissecção, acessou-se a cavidade abdominal e as seções de todos os lóbulos do fígado ex situ, do baço e do linfonodo mandibular foram submetidos ao processamento histológico de rotina. Os resultados foram fotomicrografados e documentados. A análise anatômica e histopatológica confirmou o diagnóstico de esteatose hepática, que está relacionada a um processo infeccioso como resultado das mudanças observadas nos órgãos do sistema linfóide. Este relatório de doença hepática gordurosa no armadillo sugere um processo infeccioso agudo com comprometimento do sistema linfático.

Antinociceptive, anti-inflammatory and antiarthritic activities of Bungarus fasciatus venom in experimental animal models.

Pain and inflammation are intimately associated with rheumatoid arthritis, a growing bone-joint related problem of the modern society. Though several therapeutic managements are available for arthritis, their side effects not only limit their use, but also advocate the quest for natural therapies. In this study, we explored the antinociceptive, anti-inflammatory and antiarthritic activities of Bungarus fasciatus venom (BFV) in experimental animal models. Rheumatoid arthritis was induced by Freund’s complete adjuvant (FCA) in male Wistar albino rats. Lyophilized BFV was diluted in 0.9% NaCl. Antiarthritic activity showed that BFV significantly reduced the paw and ankle diameters; urinary hydroxyproline, glucosamine levels and serum ACP/ALP/TNF-α/IL-1β/IL-17/Cathepsin-K/MMP-1 levels. These parameters were significantly increased in FCA induced arthritic animals. Joint histopathology study indicated the partial restoration of joint structure. Treatment with BFV significantly reduced the mean latency time of tail flick response, acetic acid induced writhing response and formalin induced licking response in male albino mice. BFV treatment also significantly reduced carrageenan induced paw edema and xylene induced ear edema in male albino mice. The results indicated that BFV possess antinociceptive, anti-inflammatory and antiarthritic properties and further studies are warranted to find the active constituents present in BFV.

Identification of ultrastructural and functional damages in sperm from six-banded armadillos (Euphractus sexcinctus) due to cryopreservation / Identificação de danos ultraestruturais e funcionais em espermatozoides de tatus-peba (Euphractus sexcinctus) oriundos da criopreservação

The aim of the study was to cryopreserve the semen of six-banded armadillos (Euphractus sexcinctus) in Tris-yolk and glycerol diluent, and to determine the damage caused by the freezing-thawing process, using fluorescent markers and ultrastructural analysis. Semen samples (n=11) collected from 4 adult six-banded armadillos by electroejaculation were cryopreserved in Tris diluent plus 20% egg yolk and 3% glycerol, in a fast freezing curve. Classical analysis of samples was performed after dilution, refrigeration and thawing, followed by fluorescence analysis, using a combination of fluorescent probes to assess membrane integrity (propidium iodide - PI and Hoechst - H342), and mitochondrial activity (CMXRos - Mito Tracker Red®). We also used the ultrastructural analysis to verify possible morphological alterations caused by cryoinjuries. When compared with fresh samples, we verified a significant decline in all the armadillos' semen parameters after thawing, in which only 6.1% motile sperm were found. However, the percentage of sperm which remained with viable (13%) and functional (24.7%) membranes after thawing suggests that some cells could be live but immotile. Analysis using fluorescent markers revealed that the mitochondria of armadillos' sperm is highly sensible to the freezing protocol and the findings through ultrastructure analysis proved this statement. Additionally, the images obtained by transmission electron microscopy revealed that frozen-thawed sperm presented damaged plasma membrane, nuclear modifications as changes in chromatin and acrossomal changes relative to sperm capacitation. In conclusion, this study is the first attempt to cryopreserve the semen of an armadillo species, and to help us to identify critical points on the freezing-thawing procedure in order to improve the protocol.(AU)

O objetivo deste estudo foi criopreservar o sêmen de tatus-peba (Euphractus sexcinctus) em diluente Tris-gema e glicerol, e determinar os danos causados pelo processo de congelação-descongelação, utilizando marcadores fluorescentes e análise ultraestrutural. As amostras de sêmen (n=11) coletadas de 4 tatus-peba adultos por eletroejaculação foram criopreservadas em diluente Tris acrescido de 20% de gema de ovo e 3% de glicerol, em curva rápida de congelação. A análise clássica das amostras foi realizada após a diluição, refrigeração e descongelação, seguida por análise de fluorescência, utilizando uma combinação de sondas fluorescentes para avaliar a integridade da membrana (Iodeto de Propídio - PI e Hoechst - H342), e a atividade mitocondrial (CMXRos - Mito Tracker RED®). Foi também utilizada a análise ultraestrutural para verificar possíveis alterações morfológicas causadas pela crioinjúria. Quando comparadas com as amostras a fresco, verificou-se uma queda significativa em todos os parâmetros seminais dos tatus após a descongelação, em que apenas 6,1% de espermatozoides móveis foram encontrados. No entanto, o percentual de espermatozoides que permaneceu com membrana viável (13%) e funcional (24,7%) após a descongelação sugere que algumas células podem estar vivas, mas imóveis. Análises utilizando marcadores fluorescentes revelaram que as mitocôndrias dos espermatozoides de tatus são altamente sensíveis ao protocolo de congelação e os achados através da análise ultraestrutural comprovaram esta afirmação. Além disso, as imagens obtidas por microscopia eletrônica de transmissão revelaram que espermatozoides congelados-descongelados apresentaram membranas plasmáticas danificadas, modificações nucleares como alterações na cromatina, e alterações acrossomais relativas à capacitação espermática. Em conclusão, este estudo é a primeira tentativa de criopreservação de sêmen em uma espécie de tatu, e nos auxiliou a identificar pontos críticos no processo de congelação-descongelação, a fim de melhorar o protocolo.(AU)

New aspects about Supella longipalpa (Blattaria: Blattellidae)

The brown-banded cockroach, Supella longipalpa (Blattaria: Blattellidae) (S. longipalpa), recently has infested the buildings and hospitals in wide areas of Iran, and this review was prepared to identify current knowledge and knowledge gaps about the brown-banded cockroach. Scientific reports and peer-reviewed papers concerning S. longipalpa and relevant topics were collected and synthesized with the objective of learning more about health-related impacts and possible management of S. longipalpa in Iran. Like the German cockroach, the brown-banded cockroach is a known vector for food-borne diseases and drug resistant bacteria, contaminated by infectious disease agents, involved in human intestinal parasites and is the intermediate host of Trichospirura leptostoma and Moniliformis moniliformis. Because its habitat is widespread, distributed throughout different areas of homes and buildings, it is difficult to control. Considering its possible resistance to insecticides, the control situation may be far more complex. For improved control of S. longipalpa an integrated pest management program is needed. Sanitation, indoor insecticide spraying in the initial cockroach control phase and insecticide formulation baits are recommended simultaneously.

Prevalence of Down Syndrome in Western India: A Cytogenetic Study.

Aim: To study the prevalence of Down syndrome by conventional chromosome analysis and Gbanded karyotyping. Materials and Methods: A retrospective analysis was performed on the case records of2750 paediatrics patients, of which 682 cases of confirmed Down syndrome was recorded by G-banding karyotyping. Results: Non-disjunction was the most common type of abnormality followed by Robertsonian translocation and lastly mosaic in ratio of 92.2:7.0:0.73 respectively. Conclusion: Results suggest that advanced maternal age is classic risk factor attributed to the incidences of Down syndrome.

Parasitismo por Amblyomma ovale e Amblyomma fuscum (Acari: Ixodidae) em Dasypus novemcinctus (Xenarthra: Dasypodidae) no Brasil / Parasitism by Amblyomma ovale and Amblyomma fuscum (Acari: Ixodidae) on Dasypus novemcinctus (Xenarthra: Dasypodidae) in Brazil

Carrapatos são ectoparasitos hematófagos importantes para a saúde pública e animal por transmitirem agentes infecciosos durante a hematofagia, bem como causarem injúrias a seus hospedeiros. A ocorrência dos carrapatos Amblyomma ovale e Amblyomma fuscum é registrada, pela primeira vez, para o Brasil, parasitando tatu-galinha (Dasypus novemcinctus).(AU)

Ticks are important bloodsucking ectoparasites for public and animal health for transmitting infectious agents during blood feeding and causing injuries to their hosts. The authors report the occurrence of Amblyomma ovale and Amblyomma fuscum for the first time in Brazil, parasitizing the nine-banded armadillo (Dasypus novemcinctus).(AU)

Viabilidade do sêmen de tatus-peba (Euphractus sexcinctus) centrifugado e diluído em Tris ou agua de coco em pó / Viability of the six-banded armadillos (Euphractus sexcinctus) semen centrifuged and extended in Tris or powdered coconut water

Foram avaliados os efeitos da centrifugação associada ao uso de dois diluentes na manutenção da viabilidade espermática em tatus-peba (Euphractus sexcinctus) ao longo do teste de termorresistência (TTR). Amostras de sêmen (n=12), oriundas de 04 machos adultos coletados por eletroejaculação, foram divididas em quatro alíquotas, sendo duas imediatamente diluídas em Tris ou água de coco em pó (ACP-119(r)), e as outras duas centrifugadas (800g10min-1) previamente à diluição. As amostras foram incubadas a 34°C por 3h, e os parâmetros seminais avaliados em intervalos de 1h. Em termos gerais, verificou-se uma redução da viscosidade espermática imediata à diluição em ambos os diluentes, independente do uso da centrifugação. Aos 60 minutos, verificou-se uma redução dos parâmetros avaliados (P<0,05), embora o Tris tenha promovido uma melhor preservação deles (P<0,05), quando comparado ao ACP-119(r) até os 120 minutos de avaliação. Após este período, os dois diluentes se equipararam (P>0,05). Ainda, verificou-se um efeito deletério da centrifugação sobre a qualidade do sêmen de tatus-peba durante todo o teste de termorresistência. Nas condições do presente estudo, conclui-se que o diluente Tris mostrou-se superior ao ACP-119(r) para a manutenção da viabilidade do sêmen de tatus-peba, sendo desnecessária a realização de centrifugação prévia à diluição.

The effects of the centrifugation associated to the use of two extenders on the viability of six-banded armadillo's (Euphractus sexcinctus) sperm were evaluated during a thermo resistance test (TRT). Semen samples (n=12) derived from 04 stud males collected by electroejaculation were divided in four aliquots; two of that were immediately diluted in Tris or powdered coconut water (ACP-119(r)); the two others were centrifuged (800g10min-1) prior to the dilution. Samples were incubated at 34ºC per 3h, and the semen parameters were evaluated at each hour. In general, dilution promoted a reduction in semen viscosity in the use of both diluents using centrifugation or not. At 60min, a decrease was verified for all semen parameters (P<0.05), however they were better preserved in the use of Tris when compared to ACP-119(r) (P<0.05) up to 120min. After that, both diluents equated. In addition, centrifugation procedure presented a deleterious effect on the armadillo's semen quality during all the thermoresistance test. In the present conditions, conclude that Tris extender is more efficient than ACP-119(r) for the preservation of six-banded armadillo semen viability, and the previous centrifugation is unnecessary.

Chimeric Fusion Karyotypes in Childhood B-cell Acute Lymphoblastic Leukemia.

Cytogenetics study using combination of conventional cytogenetics and fluorescent insitu hybridization was carried out in 171 pediatric acute lymphoblastic leukemia patients subgrouped to B-ALL (n=126) and T-ALL (n=45) by bone marrow morphology and immunophenotype. The chromosomal aberration frequency in B-ALL and T-ALL was 79% and 71%, respectively. TEL/AML1 translocation was detected in 28% of patients.

Genetic structure of populations of Pissodes castaneus (De Geer) (Coleoptera, Curculionidae) using amplified fragment length polymorphism

Genetic structure of populations of Pissodes castaneus (De Geer) (Coleoptera, Curculionidae) using amplified fragment length polymorphism. The objective of this study was to determine the genetic structure of populations of Pissodes castaneus from different areas and on different species of Pinus using the PCR-AFLP technique. Twenty samples were analyzed, representing 19 populations from Brazil and one from Florence, Italy, which is the region of origin of P. castaneus. The four combinations of primers generated a total of 367 fragments of DNA, and 100% of polymorphic loci, indicating high degree of molecular polymorphism. The dendrogram did not reveal trends for grouping the populations in relation to origin. The low genetic similarity (0.11 between the most distant groups) and genetic distances of 0.13 and 0.44 for 10 out of the 20 samples may indicate several founding events or multiple introductions of heterogeneous strains into Brazil. The allelic fixation index (Fst) was 0.3851, considered high, and the number of migrants (Nm) was 0.3991, indicating low gene flow among populations. The highest genetic distances were between the population from Irani, SC and Cambará do Sul, RS and Bituruna, PR, indicating an independent founding event or a particular allelic fixation in the former location. The high genetic diversity among populations points out that the populations are genetically heterogeneous with a diverse gene pool in the surveyed areas, what makes them to respond differently to control measures.

Diagnosis of an uncertain karyotype and mentally retarded child using the whole genome microarray scanning technique / 临床儿科杂志

Objective To investigate the possibility and feasibility of the whole genome microarray scanning technique in clinical cytogenetic diagnosis of an uncertain karyotype and mentally retarded child. Methods The karyotype analysis of the mental development delayed child was 47, XY+mar. Genomic DNA was extracted from the peripheral blood and the whole genome microarray scanning technique was used to analyze the derivative chromosome. Results The whole genome microar-ray scanning technique indicated the derivative chromosome fragment had originated from 9p13.1-p24.3. Conclusions Com-paring to conventional cytogenetic analysis methods, the whole genome microarray scanning technique is of high resolution, high-throughput and high accuracy, which can detect the submicroscopic chromosomal aberrations and replace the conven-tional karyotype analysis.

Bypass anillado ¿cuál es su real utilidad?: estudio comparativo a diez años / Banded gastric bypass: a ten years evaluation

Background: Placing a ring around the gastric reservoir could improve the weight lowering effects of gastric bypass. Previous studies have shown positive results of banded gastric bypass. Aim: To evaluate the long-term outcome of patients subjected to banded gastric bypass (GB) and non-banded GB procedures. Material and Methods: Ten years follow up of260 non randomized obese patients who underwent banded GB and 218 patients in whom the ring was not placed. Excess weight loss (EWL), quality of life (QOL), food tolerance (FT), and correction of comorbidities were assessed. Results: The percentage EWL at ten years of follow up was 82 and 63 percent among patients subjected to banded and non-banded gastric bypass, respectively (p < 0.01). In three patients with banded GB, there was a migration of the ring to the interior of the stomach. Stenosis of the gastro-jejuno anastomosis occurred in 4 and 0.4 percent of patients subjected to banded and non-banded GB Perception of quality of life was similar in both groups. The outcome in terms of comorbidities was not conclusive. Conclusions: There is a clear advantage in terms of EWL among patients subjected to banded GB. No differences in quality of life were found in both groups.

Introducción: Muchos cirujanos han procurado mejorar los resultados del bypass gástrico agregando algún mecanismo restrictivo, como es la instalación de un anillo alrededor del bolsillo. Estudios previos han mostrado resultados positivos con el bypass gástrico anillado (BPGA), sin embargo, no hay estudios comparativos con resultados en el largo plazo para establecer la real utilidad de agregar un anillo durante la cirugía del bypass gástrico. Objetivo: Este estudio está dirigido a comparar el resultado a largo plazo entre el bypass gástrico (BPG) y el bypass gástrico anillado (BPGA). Material y Método: Estudiamos 260 pacientes obesos operados con anillo y 218 sin anillo. Fueron seguidos por 10 años, y se investigaron la pérdida de exceso de peso (PEP), Ia calidad de vida (CDV), tolerancia a la alimentación, y resolución de comorbilidades. Resultados: Hay una clara diferencia en el por ciento PEP desde el tercer año de control; alcanza a un 19 por ciento de diferencia en favor del BPGA al término del estudio, cifra altamente significativa. El anillo disminuye en parte la facilidad de ingesta pero esto no es sentido por los pacientes como una disminución de la calidad de vida (CDV). Los resultados en cuanto a comorbilidades no son concluyentes. Conclusiones: Hay una clara diferencia en el resultado en cuanto a PEP La calidad de vida es similar en ambos grupos. Es importante seleccionar el material adecuado y el correcto tamaño del anillo para mejorar los resultados y evitar complicaciones.