RESUMO
BACKGROUND: The intricate mechanisms of jowl formation, which ultimately lead to loss of lower jaw definition, skin laxity, and localized fat accumulation, involve interrelated factors such as skin aging, fat redistribution, muscle dynamics, and loss of support. AIMS: To propose a structured approach to the treatment of the jowl area that is comprehensive and tailored to the needs of each individual patient. MATERIALS AND METHODS: This integrative review combines a meticulous analysis of the literature with practical insights from real-world clinical settings. The authors draw on their extensive clinical experience to bridge research findings with practical clinical perspectives. RESULTS: This study presents a guideline for addressing jowl formation that starts with the major aging processes and, based on simple diagnostic questions, suggests minimally invasive interventions, including collagen stimulators, energy-based devices, lipolytic injectables, polydioxanone threads, and hyaluronic acid fillers. DISCUSSION: The guideline emphasizes the significance of personalized treatments while also acknowledging the need for comprehensive evaluation and recognizing the ever-evolving nature of aesthetic interventions in jowl management. CONCLUSION: This systematic approach can not only simplify diagnostic and treatment decisions for dermatologists but also enhance patient satisfaction by customizing treatment plans based on individual characteristics and expectations.
Assuntos
Técnicas Cosméticas , Rejuvenescimento , Envelhecimento da Pele , Humanos , Envelhecimento da Pele/efeitos dos fármacos , Técnicas Cosméticas/normas , Preenchedores Dérmicos/administração & dosagem , Preenchedores Dérmicos/efeitos adversos , Guias de Prática Clínica como Assunto , Satisfação do PacienteRESUMO
Domestic and wild goats are very susceptible animals to predation, specially when pregnancy occurs. This study aimed to evaluate the use of goat fetal ovarian tissue for vitrification followed by xenotransplantation and fresh xenotransplantation in two immunosuppressed mice models (C57BL/6 SCID and Balb-C NUDE). Goat fetus ovaries were collected in slaughterhouses, divided into small cortical pieces and were destined for fresh xenotransplantation (FX) and cryopreservation followed by xenotransplantation (CX). Five recipients from each lineage were used for FX and 10 animals from each lineage for CX. The mice were euthanized after 65 postoperative days, and the transplants were collected for microscopic assessment. The blood plasma was collected for estradiol measurement. Independently of mice strain, all recipients presented complete estrus cycle in FX and 80% after CX groups. Follicles were observed at all development stages without morphological changes. The volume density and total vessel surface observed in the transplants were different (p <0.01) between groups. The estradiol levels in the recipients did not differ (p <0.05) among the treatments. Thus, it is possible to activate the preantral follicles in the ovaries of fetuses by optimizing germplasm utilization and conservation of domestic and endangered wild goats that are in predatory situations, undesirable drowning or accidental death, since provided conditions for xenotransplantation are performed.
RESUMO
This study evaluated the effect of the extract of Aloe vera at concentrations of 10% and 20% on the cryopreservation of sperm from the epididymis of domestic cats. Epididymal spermatozoa were recovered using the flotation technique and used in the treatments: control (TRIS-egg yolk at 20%), T10% (TRIS plus 10% of A. vera extract), and T20% (TRIS plus 20% of A. vera extract). The spermatozoa were subjected to 4ºC for 60 minutes, followed by 20 minutes in nitrogen vapors, and stored in a cryogenic cylinder. The samples were thawed at 37°C for 30 seconds. The sperm motility decreased (P<0.05) after thawing in the three treatments. Only the spermatozoa in the control treatment maintained post-thawing vigor. The viability of spermatozoa decreased in the treatments with A. vera (P<0.05). According to the hypoosmotic test, all treatments maintained the sperm membrane functionality (P>0.05) during freezing; however, after thawing, it decreased (P<0.05) in the T10% and T20% treatments. The morphology and chromatin condensation of spermatozoa did not differ, regardless of the treatments and time of evaluation (P>0.05). The effect of the crude A. vera extract was not satisfactory on the cryopreservation of epididymal spermatozoa of domestic cats after thawing; although the motility of spermatozoa was similar to that found with the use of egg yolk, and it presented maintenance of the chromatin integrity. However, it is necessary to understand the action of the substances present in A. vera with the feline spermatozoa, well as the standardization and adjustment of physicochemical characteristics aiming at the future application of the vegetal extract.
RESUMO
This study evaluated the effect of the extract of Aloe vera at concentrations of 10% and 20% on the cryopreservation of sperm from the epididymis of domestic cats. Epididymal spermatozoa were recovered using the flotation technique and used in the treatments: control (TRIS-egg yolk at 20%), T10% (TRIS plus 10% of A. vera extract), and T20% (TRIS plus 20% of A. vera extract). The spermatozoa were subjected to 4ºC for 60 minutes, followed by 20 minutes in nitrogen vapors, and stored in a cryogenic cylinder. The samples were thawed at 37°C for 30 seconds. The sperm motility decreased (P0.05) during freezing; however, after thawing, it decreased (P0.05). The effect of the crude A. vera extract was not satisfactory on the cryopreservation of epididymal spermatozoa of domestic cats after thawing; although the motility of spermatozoa was similar to that found with the use of egg yolk, and it presented maintenance of the chromatin integrity. However, it is necessary to understand the action of the substances present in A. vera with the feline spermatozoa, well as the standardization and adjustment of physicochemical characteristics aiming at the future application of the vegetal extract.
Assuntos
Masculino , Animais , Gatos , Aloe/efeitos adversos , Aloe/química , Criopreservação/métodos , Criopreservação/veterinária , Gatos/fisiologiaRESUMO
Domestic and wild goats are very susceptible animals to predation, specially when pregnancy occurs. This study aimed to evaluate the use of goat fetal ovarian tissue for vitrification followed by xenotransplantation and fresh xenotransplantation in two immunosuppressed mice models (C57BL/6 SCID and Balb-C NUDE). Goat fetus ovaries were collected in slaughterhouses, divided into small cortical pieces and were destined for fresh xenotransplantation (FX) and cryopreservation followed by xenotransplantation (CX). Five recipients from each lineage were used for FX and 10 animals from each lineage for CX. The mice were euthanized after 65 postoperative days, and the transplants were collected for microscopic assessment. The blood plasma was collected for estradiol measurement. Independently of mice strain, all recipients presented complete estrus cycle in FX and 80% after CX groups. Follicles were observed at all development stages without morphological changes. The volume density and total vessel surface observed in the transplants were different (p <0.01) between groups. The estradiol levels in the recipients did not differ (p <0.05) among the treatments. Thus, it is possible to activate the preantral follicles in the ovaries of fetuses by optimizing germplasm utilization and conservation of domestic and endangered wild goats that are in predatory situations, undesirable drowning or accidental death, since provided conditions for xenotransplantation are performed.
Assuntos
Masculino , Feminino , Animais , Camundongos , Criopreservação , Fase Folicular , Ruminantes/anatomia & histologia , Ruminantes/fisiologia , Vitrificação , Transplante HeterólogoRESUMO
Domestic and wild goats are very susceptible animals to predation, specially when pregnancy occurs. This study aimed to evaluate the use of goat fetal ovarian tissue for vitrification followed by xenotransplantation and fresh xenotransplantation in two immunosuppressed mice models (C57BL/6 SCID and Balb-C NUDE). Goat fetus ovaries were collected in slaughterhouses, divided into small cortical pieces and were destined for fresh xenotransplantation (FX) and cryopreservation followed by xenotransplantation (CX). Five recipients from each lineage were used for FX and 10 animals from each lineage for CX. The mice were euthanized after 65 postoperative days, and the transplants were collected for microscopic assessment. The blood plasma was collected for estradiol measurement. Independently of mice strain, all recipients presented complete estrus cycle in FX and 80% after CX groups. Follicles were observed at all development stages without morphological changes. The volume density and total vessel surface observed in the transplants were different (p <0.01) between groups. The estradiol levels in the recipients did not differ (p <0.05) among the treatments. Thus, it is possible to activate the preantral follicles in the ovaries of fetuses by optimizing germplasm utilization and conservation of domestic and endangered wild goats that are in predatory situations, undesirable drowning or accidental death, since provided conditions for xenotransplantation are performed.(AU)
Assuntos
Animais , Masculino , Feminino , Camundongos , Ruminantes/anatomia & histologia , Ruminantes/fisiologia , Vitrificação , Fase Folicular , Criopreservação , Transplante HeterólogoRESUMO
This study evaluated the effect of the extract of Aloe vera at concentrations of 10% and 20% on the cryopreservation of sperm from the epididymis of domestic cats. Epididymal spermatozoa were recovered using the flotation technique and used in the treatments: control (TRIS-egg yolk at 20%), T10% (TRIS plus 10% of A. vera extract), and T20% (TRIS plus 20% of A. vera extract). The spermatozoa were subjected to 4ºC for 60 minutes, followed by 20 minutes in nitrogen vapors, and stored in a cryogenic cylinder. The samples were thawed at 37°C for 30 seconds. The sperm motility decreased (P<0.05) after thawing in the three treatments. Only the spermatozoa in the control treatment maintained post-thawing vigor. The viability of spermatozoa decreased in the treatments with A. vera (P<0.05). According to the hypoosmotic test, all treatments maintained the sperm membrane functionality (P>0.05) during freezing; however, after thawing, it decreased (P<0.05) in the T10% and T20% treatments. The morphology and chromatin condensation of spermatozoa did not differ, regardless of the treatments and time of evaluation (P>0.05). The effect of the crude A. vera extract was not satisfactory on the cryopreservation of epididymal spermatozoa of domestic cats after thawing; although the motility of spermatozoa was similar to that found with the use of egg yolk, and it presented maintenance of the chromatin integrity. However, it is necessary to understand the action of the substances present in A. vera with the feline spermatozoa, well as the standardization and adjustment of physicochemical characteristics aiming at the future application of the vegetal extract.(AU)
Assuntos
Animais , Masculino , Gatos , Aloe/efeitos adversos , Aloe/química , Criopreservação/métodos , Criopreservação/veterinária , Gatos/fisiologiaRESUMO
Introdução: Lesões decorrentes de trauma são agravos súbitos à saúde que podem levar a deficiências temporárias e interferir na qualidade de vida das vítimas. O serviço de Cirurgia Plástica Reparadora (CPR) do Hospital Metropolitano de Urgência e Emergência (HMUE) atua como a unidade de referência no tratamento de feridas dos pacientes vítimas de trauma no Estado do Pará. Métodos: Estudo observacional analítico, do tipo transversal prospectivo. A população foi composta por 78 pacientes atendidos no período de dezembro de 2015 até dezembro de 2016. Resultados: A população predominante foi de pacientes do sexo masculino, autônomos, entre 21 a 30 anos. Os acidentes automobilísticos foram os mais prevalentes. A área corporal mais afetada foi a dos membros inferiores e o tipo de cirurgia mais realizada foi enxerto. Tanto entre os pacientes submetidos à cirurgia de enxerto quanto os de retalho, predominou a viabilidade no intervalo de 90-100%. Não foi verificada associação significativa da faixa etária dos pacientes sob o grau de viabilidade. Houve relação entre o número de dias do acidente até a intervenção com o grau de viabilidade do enxerto. Conclusão: Os pacientes internados no hospital no mesmo dia do acidente têm seis vezes mais chance de apresentar viabilidade do enxerto acima de 80% e, portanto, desfecho favorável.
Introduction: Injuries due to trauma are health problems that can lead to temporary deficiencies and interfere with the quality of life of the victims. The Reconstructive Plastic Surgery (RPS) service of the Metropolitan Emergency and Emergency Hospital (HMUE) acts as the reference unit for the treatment of wounds of trauma victims in the State of Pará. Methods: An observational cross-sectional study. The population was composed of 78 patients attended in the period from December 2015 to December 2016. Results: The predominant population was male patients, between 21 and 30 years old. Automobile accidents were the most prevalent. The most affected body area was the lower limbs and the type of surgery performed was graft. Among the patients submitted to graft surgery as well as those of the graft, the viability predominated in the range of 90-100%. There was no significant association between the age of the group under the degree of viability. There was a relation between the number of days of the accident and the intervention with the degree of viability of the graft. Conclusion: Patients hospitalized on the same day of the accident are six times more likely to present graft viability than 80%.
Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Pacientes/estatística & dados numéricos , Cirurgia Plástica/estatística & dados numéricos , Ferimentos e Lesões/cirurgia , Ferimentos e Lesões/reabilitação , Epidemiologia/estatística & dados numéricos , Procedimentos de Cirurgia Plástica/efeitos adversos , Procedimentos de Cirurgia Plástica/métodosRESUMO
The objective of this study was to evaluate effects of eCG on vascularization and development of feline ovarian tissue xenografted to immunosuppressed mice. Feline ovarian fragments (â¼1â¯mm3) were transplanted under the renal capsule of 20 adult, ovariectomized, C57BL/6 SCID female mice. At 45â¯d after transplantation, 10 mice (controls) were euthanized and the remainder given 10 IU of eCG (and sacrificed 48â¯h later). Transplants were recovered immediately after death, fixed, sectioned, and stained with periodic acid-Schiff (PAS). Fragment volume (Cavallieri principle) and vascularization were assessed. Mean xenotransplant volume for control and treatment groups was 0.17⯱â¯0.03 and 0.37⯱â¯0.13â¯mm3, respectively (Pâ¯=â¯0.0952); vascular volume density, 30.3⯱â¯11.3 and 49.1⯱â¯8.9% (Pâ¯=â¯0.0281); surface density, 4.1⯱â¯2.4 and 6.2⯱â¯1.7⯵m-1â¯(Pâ¯=â¯0.2222); and vessel total surface, 0.63⯱â¯0.24⯵m2 and 2.28⯱â¯1.05⯵m2â¯(Pâ¯=â¯0.0079). In conclusion, eCG significantly increased vascular volume density of xenotransplanted ovarian tissue and improved its development.
Assuntos
Gatos , Gonadotropina Coriônica/uso terapêutico , Xenoenxertos/irrigação sanguínea , Neovascularização Fisiológica/efeitos dos fármacos , Ovário/transplante , Transplante de Tecidos/veterinária , Animais , Feminino , Gonadotropinas Equinas/farmacologia , Camundongos Endogâmicos C57BL , Camundongos SCID , Ovário/irrigação sanguínea , Transplante de Tecidos/métodos , Transplante HeterólogoRESUMO
Introdução: A dermatite atópica tornou-se importante problema de saúde pública, visto que sua incidência triplicou nas últimas três décadas, e que compromete significativamente a qualidade de vida dos pacientes. A hipótese de que a ingestão alimentar pode ser importante para modular a expressão da doença vem sendo cada vez mais evidenciada. Objetivo: Correlacionar a dieta alimentar com a gravidade da dermatite atópica em crianças e adolescentes atendidos no Ambulatório de Dermatologia da Universidade do Estado do Pará. Método: Foi realizado um estudo transversal e observacional, cuja amostra foi composta por 53 pacientes, nos quais foram aplicados o Questionário de Frequência de Consumo Alimentar (QFCA) e o Scoring of Atopic Dermatitis SCORAD para avaliar a gravidade da doença. Para identificar essa correlação foi aplicado o teste de D'Agostino- Pearson para variáveis quantitativas, e a correlação Linear de Pearson para variáveis qualitativas, tendo sido previamente fixado o nível de significância alfa = 0,05 para rejeição da hipótese de nulidade. Resultados: Os pacientes estudados foram em sua maioria do sexo feminino, na faixa etária entre 4-10 anos, e com IMC adequado para a idade. Cerca de 50% teve história familiar de atopia, 60% fez uso de fórmulas lácteas ao longo da vida, e 60% recebeu aleitamento materno exclusivo. A gravidade da dermatite atópica teve correlação direta apenas com o consumo habitual de alimentos industrializados (coeficiente de correlação: 0,3355). Conclusão: São necessários estudos longitudinais prospectivos e de longo prazo para determinar como modificações na ingestão dietética podem oferecer benefícios à população atópica.
Introduction: Atopic dermatitis has become an important public health problem worldwide, as its incidence tripled in the last three decades and it significantly affects the quality of life of patients. The hypothesis that food intake may be important in modulating the expression of disease has been increasingly evidenced. Objective: To correlate dietary patterns with severity of atopic dermatitis in children and adolescents treated at the Dermatology Outpatient Unit of Universidade do Estado do Pará. Method: This was a cross-sectional, observational study whose sample comprised 53 patients who were administered the Food Frequency Questionnaire (FFQ) and the Scoring Index of Atopic Dermatitis (SCORAD) to assess disease severity. The D'Agostino-Pearson test was used to identify correlations between quantitative variables, and Pearson's linear correlation was used for qualitative variables. The significance level was previously set at alpha = 0.05 for the rejection of the null hypothesis. Results: The patients studied were mostly female, aged 4-10 years, with an appropriate body mass index (BMI) for age. About 50% had a family history of atopy; 60% had always used infant formula, and 60% had been exclusively breastfed. The severity of atopic dermatitis showed a direct correlation only with the usual intake of processed foods (correlation coefficient: 0.3355). Conclusion: Prospective longitudinal and long-term studies are necessary to determine how changes in dietary patterns can offer benefits to the atopic population.
Assuntos
Humanos , Lactente , Pré-Escolar , Criança , Adolescente , Dermatite Atópica , Dieta , Pacientes Ambulatoriais , Qualidade de Vida , Aleitamento Materno , Inquéritos e Questionários , Ingestão de Alimentos , Alimentos IndustrializadosRESUMO
Background: The emergence of the NUDE and SCID immunosuppressed mice lineages generated knowledge on various mechanisms of lymphocyte maturation and human autoimmune diseases. Information on haematological and biochemical parameters of these lineages is still scarce, making it impossible to infer homeostasis by comparing data, or to detect genetic influences on the parameters for these species. Haematological and biochemical tests were carried out on Balb/c NUDE and C57BL/6 SCID mice of both sexes, aiming to analyse the presence of genetic influence on possible variations of such parameters and to verify reference values for both lineages.Materials, Methods & Results: One hundred and forty mice (Mus musculus) of the Balb/C NUDE and C57BL/6 SCID lineages were used in the present study. The animals were previously anesthetized, the blood collection procedure was performed by cardiac puncture and the samples were collected in the presence of heparin and intended for haematological and biochemical evaluation, under standardized conditions. The haematological evaluation consisted of red blood cell count, leukocyte counts, platelet counts, haematocrit, haemoglobin concentration, mean corpuscular volume (MCV), and mean corpuscular haemoglobin concentration (MCHC). The quantified biochemical parameters were: urea, creatinine, alanine aminotransaminase (ALT), aspartate aminotransaminase (AST) and alkaline phosphatase (ALP). While analysing the obtained data, it was possible to observe that only females presented divergences (P < 0.05) in the red blood cell series, in haemoglobin and in mean haemoglobin concentration (MCH). Regarding the analysis of the white blood cell series, females only presented differences (P < 0.05) in the leukocyte count. For males, there were variations (P < 0.05) in the counts of leukocytes, eosinophils, lymphocytes and neutrophils.[...]
Assuntos
Animais , Camundongos , Biomarcadores/análise , Terapia de Imunossupressão , Variação Genética/imunologia , Testes Hematológicos/métodos , Testes Hematológicos/veterináriaRESUMO
Background: The emergence of the NUDE and SCID immunosuppressed mice lineages generated knowledge on various mechanisms of lymphocyte maturation and human autoimmune diseases. Information on haematological and biochemical parameters of these lineages is still scarce, making it impossible to infer homeostasis by comparing data, or to detect genetic influences on the parameters for these species. Haematological and biochemical tests were carried out on Balb/c NUDE and C57BL/6 SCID mice of both sexes, aiming to analyse the presence of genetic influence on possible variations of such parameters and to verify reference values for both lineages.Materials, Methods & Results: One hundred and forty mice (Mus musculus) of the Balb/C NUDE and C57BL/6 SCID lineages were used in the present study. The animals were previously anesthetized, the blood collection procedure was performed by cardiac puncture and the samples were collected in the presence of heparin and intended for haematological and biochemical evaluation, under standardized conditions. The haematological evaluation consisted of red blood cell count, leukocyte counts, platelet counts, haematocrit, haemoglobin concentration, mean corpuscular volume (MCV), and mean corpuscular haemoglobin concentration (MCHC). The quantified biochemical parameters were: urea, creatinine, alanine aminotransaminase (ALT), aspartate aminotransaminase (AST) and alkaline phosphatase (ALP). While analysing the obtained data, it was possible to observe that only females presented divergences (P < 0.05) in the red blood cell series, in haemoglobin and in mean haemoglobin concentration (MCH). Regarding the analysis of the white blood cell series, females only presented differences (P < 0.05) in the leukocyte count. For males, there were variations (P < 0.05) in the counts of leukocytes, eosinophils, lymphocytes and neutrophils.[...](AU)
Assuntos
Animais , Camundongos , Terapia de Imunossupressão , Biomarcadores/análise , Variação Genética/imunologia , Testes Hematológicos/métodos , Testes Hematológicos/veterináriaRESUMO
Background: Animal models are widely used in scientific research because of the ability to generate information from an organism like everything under a given experimental condition. Hematological and biochemical tests in laboratory animals are essential for the validation of several scientific studies. In addition, it standardizes physiological values for these animals according to their sex, age, lineage, environment, and nutritional status. The present work aims to establish reference values for biochemical and hematological standards in Balb/c mice, for males and females.Materials, Methods & Results: A total of 50 male and female mice were used at reproductive age. The procedures for collecting, processing, and analyzing the samples were standardized. The collected blood samples were immediately transferred to eppendorf tubes containing heparin, and intended for hematological and biochemical evaluation. The hematological evaluation consisted of Red blood cell count (RBC), Leukocyte counts (WBC), Platelet counts (PLT), Hematocrit (HCT), Hemoglobin concentration (HGB), Mean corpuscular volume (MCV), and Mean corpuscular hemoglobin concentration (MCHC). Already the quantified biochemical parameters were: urea, creatinine, alanina aminotransaminase (ALT), aspartato aminotransaminase (AST) and fosfatase alcalina (FAL). The differential leukocyte count was also performed. Hematological results obtained for males and females were: 9.19 ± 3.35 (106/mm³) and 7.3 ± 2.01(106/mm³) of RBC; 35.8 ± 6.7% and 38.44 ± 3.93% of HCT; 11.51 ± 2.17 g/dL and 11.85 ± 1.56 g/dL of HGB; 45.83 ± 15.03 fL and 60.26 ± 18.25 fL of VCM; 31.80 ± 1.15% and 31.88 ± 0.99% of MCHC; and, 5380 ± 1994.21(10³/mm³) and 3564 ± 1071(10³/mm³) of WBC. The platelet counts were 878.92 ± 84.19 and 678.28 ± 227.21, for males and females respectively.[...](AU)
Assuntos
Animais , Camundongos , Camundongos Endogâmicos BALB C/sangue , Animais de Laboratório , Contagem de Células Sanguíneas/veterinária , Testes Hematológicos/veterinária , Valores de ReferênciaRESUMO
Background: Animal models are widely used in scientific research because of the ability to generate information from an organism like everything under a given experimental condition. Hematological and biochemical tests in laboratory animals are essential for the validation of several scientific studies. In addition, it standardizes physiological values for these animals according to their sex, age, lineage, environment, and nutritional status. The present work aims to establish reference values for biochemical and hematological standards in Balb/c mice, for males and females.Materials, Methods & Results: A total of 50 male and female mice were used at reproductive age. The procedures for collecting, processing, and analyzing the samples were standardized. The collected blood samples were immediately transferred to eppendorf tubes containing heparin, and intended for hematological and biochemical evaluation. The hematological evaluation consisted of Red blood cell count (RBC), Leukocyte counts (WBC), Platelet counts (PLT), Hematocrit (HCT), Hemoglobin concentration (HGB), Mean corpuscular volume (MCV), and Mean corpuscular hemoglobin concentration (MCHC). Already the quantified biochemical parameters were: urea, creatinine, alanina aminotransaminase (ALT), aspartato aminotransaminase (AST) and fosfatase alcalina (FAL). The differential leukocyte count was also performed. Hematological results obtained for males and females were: 9.19 ± 3.35 (106/mm³) and 7.3 ± 2.01(106/mm³) of RBC; 35.8 ± 6.7% and 38.44 ± 3.93% of HCT; 11.51 ± 2.17 g/dL and 11.85 ± 1.56 g/dL of HGB; 45.83 ± 15.03 fL and 60.26 ± 18.25 fL of VCM; 31.80 ± 1.15% and 31.88 ± 0.99% of MCHC; and, 5380 ± 1994.21(10³/mm³) and 3564 ± 1071(10³/mm³) of WBC. The platelet counts were 878.92 ± 84.19 and 678.28 ± 227.21, for males and females respectively.[...]
Assuntos
Animais , Camundongos , Animais de Laboratório , Camundongos Endogâmicos BALB C/sangue , Contagem de Células Sanguíneas/veterinária , Testes Hematológicos/veterinária , Valores de ReferênciaRESUMO
The aim of this study was to compare two receptor sites in ovarian autologous transplantation in mice. Twelve Balb-c mice were randomly divided into three groups of four animals each: G1 - non-transplanted animals, G2 - animals which received the ovarian fragment in the perimetrium, G3 - animals which had the abdominal subcutaneous tissue as a receptor site. For transplantation, mice were subjected to bilateral salpingectomia. The left ovary was submitted for histological processing. The right ovarian cortex was fragmented and reimplanted in the specified places according to the groups. Transplants were recovered in 3/4 of the mice in each treatment group. In vaginal washes, the return of the ovarian activity in half of the females of G3 and 3/4 females of G2 was observed. It was detected the presence of corpora lutea in 1/4 of G3 transplants and half in G2. In follicular population all stages of development were observed. Comparing the receptor sites, it was observed a higher percentage of return to cyclicity, as well as of follicles, in animals which had the perimetrium as the site of transplantation. In the subcutaneous, there was a lower follicular growth and lower quantity of corpus luteum. Thus, ovarian autologous transplantation allocated in the subcutaneous tissue and perimetrium allowed both tissue maintenance and follicular development; however, the site of choice will depend on the final goal one aims with the technique
Objetivou-se comparar dois sítios receptores no transplante autólogo ovariano em camundongas. Doze camundongas BALB/c foram divididas aleatoriamente em três grupos experimentais com quatro animais em cada. O G1 - animais não submetidos ao transplante, G2 - animais que receberam o fragmento ovariano no perimétrio, G3 - animais que tiveram o tecido subcutâneo abdominal como sítio receptor. Para o transplante, as fêmeas foram submetidas à ovariossalpingectomia bilateral. O ovário esquerdo foi encaminhado para processamento histológico. O córtex do ovário direito foi fragmentado e reimplantado nos locais especificados de acordo com os grupos. Os transplantes foram recuperados em 3/4 das camundongas em cada grupo tratado. No lavado vaginal, observou-se em metade das fêmeas do G3 e em 3/4 das fêmeas do G2 retorno da ciclicidade. Observou-se presença de corpos lúteos em 1/4 dos transplantes do G3 e metade nos do G2. Na população folicular, foram observados todos os estádios de desenvolvimento. Comparando os sítios receptores observou-se maior porcentagem de retorno à ciclicidade, bem como de folículos, nos animais que tiveram o perimétrio como local do transplante. Já no subcutâneo houve menor crescimento folicular e menor quantidade de corpos lúteos. Dessa forma, conclui-se que o transplante autólogo ovariano alocado no tecido subcutâneo e no perimétrio permitiu tanto a manutenção tecidual quanto o desenvolvimento folicular, porém, o sítio de escolha vai depender do objetivo final que se almeja com a técnica
Assuntos
Feminino , Animais , Camundongos , Membrana Serosa/transplante , Ovário/transplante , Tela Subcutânea/transplante , Ovariectomia/veterinária , Salpingectomia/veterináriaRESUMO
The aim of this study was to compare two receptor sites in ovarian autologous transplantation in mice. Twelve Balb-c mice were randomly divided into three groups of four animals each: G1 - non-transplanted animals, G2 - animals which received the ovarian fragment in the perimetrium, G3 - animals which had the abdominal subcutaneous tissue as a receptor site. For transplantation, mice were subjected to bilateral salpingectomia. The left ovary was submitted for histological processing. The right ovarian cortex was fragmented and reimplanted in the specified places according to the groups. Transplants were recovered in 3/4 of the mice in each treatment group. In vaginal washes, the return of the ovarian activity in half of the females of G3 and 3/4 females of G2 was observed. It was detected the presence of corpora lutea in 1/4 of G3 transplants and half in G2. In follicular population all stages of development were observed. Comparing the receptor sites, it was observed a higher percentage of return to cyclicity, as well as of follicles, in animals which had the perimetrium as the site of transplantation. In the subcutaneous, there was a lower follicular growth and lower quantity of corpus luteum. Thus, ovarian autologous transplantation allocated in the subcutaneous tissue and perimetrium allowed both tissue maintenance and follicular development; however, the site of choice will depend on the final goal one aims with the technique(AU)
Objetivou-se comparar dois sítios receptores no transplante autólogo ovariano em camundongas. Doze camundongas BALB/c foram divididas aleatoriamente em três grupos experimentais com quatro animais em cada. O G1 - animais não submetidos ao transplante, G2 - animais que receberam o fragmento ovariano no perimétrio, G3 - animais que tiveram o tecido subcutâneo abdominal como sítio receptor. Para o transplante, as fêmeas foram submetidas à ovariossalpingectomia bilateral. O ovário esquerdo foi encaminhado para processamento histológico. O córtex do ovário direito foi fragmentado e reimplantado nos locais especificados de acordo com os grupos. Os transplantes foram recuperados em 3/4 das camundongas em cada grupo tratado. No lavado vaginal, observou-se em metade das fêmeas do G3 e em 3/4 das fêmeas do G2 retorno da ciclicidade. Observou-se presença de corpos lúteos em 1/4 dos transplantes do G3 e metade nos do G2. Na população folicular, foram observados todos os estádios de desenvolvimento. Comparando os sítios receptores observou-se maior porcentagem de retorno à ciclicidade, bem como de folículos, nos animais que tiveram o perimétrio como local do transplante. Já no subcutâneo houve menor crescimento folicular e menor quantidade de corpos lúteos. Dessa forma, conclui-se que o transplante autólogo ovariano alocado no tecido subcutâneo e no perimétrio permitiu tanto a manutenção tecidual quanto o desenvolvimento folicular, porém, o sítio de escolha vai depender do objetivo final que se almeja com a técnica(AU)
Assuntos
Animais , Feminino , Camundongos , Ovário/transplante , Tela Subcutânea/transplante , Membrana Serosa/transplante , Salpingectomia/veterinária , Ovariectomia/veterináriaRESUMO
O ciclo estral é a sincronia entre eventos comportamentais, anatômicos e endócrinos que resultam na ovulação, e pode ser dividido em fase lútea e fase folicular. A identificação das fases do ciclo estral da égua pode ser acompanhada por meio de várias biotécnicas reprodutivas como, por exemplo, citologia vaginal classificando os diversos tipos de células do epitélio vaginal, ultrassonografia para avaliação da dinâmica folicular e a dosagem hormonal no plasma sanguíneo ou das fezes do animal para caracterizar a fase do ciclo estral que o animal possivelmente se encontra. Sendo assim, o objetivo desta revisão foi discutir a fisiologia do ciclo estral de éguas, a fim de favorecer novas pesquisas relacionadas à biotécnicas reprodutivas para equinos.
The estrous cycle is the synchrony of behavioral, anatomical and endocrine events that result in ovulation. It can be divided into luteal and follicular phases. The identification of the stages in the estrous cycle of mares can be accomplished through several reproductive biotechnologies, such as, for instance, vaginal cytology classifying the different types of cells in the vaginal epithelium, follicular dynamics evaluated through ultrasound examination, and hormone dosage in blood plasma or feces from the animal to characterize the likely estrous cycle phase. Thus, the objective of this review is to discuss the physiology of the estrous cycle in mares in order to encourage new research related to reproductive biotechnologies for horses.
El ciclo estral es la sincronía entre eventos de comportamiento, anatómicos y endocrinos que resultan en la ovulación, y se puede dividir en fase lútea y fase folicular. La identificación de las etapas del ciclo estral de la yegua puede ser acompañada a través de varias biotécnicas reproductivas como, por ejemplo, citología vaginal, clasificando los diferentes tipos de células del epitelio vaginal, ultrasonido para evaluación de la dinámica folicular y la dosificación hormonal en el plasma sanguíneo o de las heces del animal para caracterizar la fase del ciclo estral que el animal posiblemente se encuentra. Así, el objetivo de esta revisión ha sido examinar la fisiología del ciclo estral de yeguas, con el fin de fomentar nuevas investigaciones relacionadas con las biotecnologías reproductivas para equinos.
Assuntos
Feminino , Animais , Ciclo Estral/fisiologia , Ciclo Estral/metabolismo , Ultrassonografia , Ultrassonografia/veterinária , Fenômenos Reprodutivos Fisiológicos/genéticaRESUMO
O ciclo estral é a sincronia entre eventos comportamentais, anatômicos e endócrinos que resultam na ovulação, e pode ser dividido em fase lútea e fase folicular. A identificação das fases do ciclo estral da égua pode ser acompanhada por meio de várias biotécnicas reprodutivas como, por exemplo, citologia vaginal classificando os diversos tipos de células do epitélio vaginal, ultrassonografia para avaliação da dinâmica folicular e a dosagem hormonal no plasma sanguíneo ou das fezes do animal para caracterizar a fase do ciclo estral que o animal possivelmente se encontra. Sendo assim, o objetivo desta revisão foi discutir a fisiologia do ciclo estral de éguas, a fim de favorecer novas pesquisas relacionadas à biotécnicas reprodutivas para equinos.(AU)
The estrous cycle is the synchrony of behavioral, anatomical and endocrine events that result in ovulation. It can be divided into luteal and follicular phases. The identification of the stages in the estrous cycle of mares can be accomplished through several reproductive biotechnologies, such as, for instance, vaginal cytology classifying the different types of cells in the vaginal epithelium, follicular dynamics evaluated through ultrasound examination, and hormone dosage in blood plasma or feces from the animal to characterize the likely estrous cycle phase. Thus, the objective of this review is to discuss the physiology of the estrous cycle in mares in order to encourage new research related to reproductive biotechnologies for horses.(AU)
El ciclo estral es la sincronía entre eventos de comportamiento, anatómicos y endocrinos que resultan en la ovulación, y se puede dividir en fase lútea y fase folicular. La identificación de las etapas del ciclo estral de la yegua puede ser acompañada a través de varias biotécnicas reproductivas como, por ejemplo, citología vaginal, clasificando los diferentes tipos de células del epitelio vaginal, ultrasonido para evaluación de la dinámica folicular y la dosificación hormonal en el plasma sanguíneo o de las heces del animal para caracterizar la fase del ciclo estral que el animal posiblemente se encuentra. Así, el objetivo de esta revisión ha sido examinar la fisiología del ciclo estral de yeguas, con el fin de fomentar nuevas investigaciones relacionadas con las biotecnologías reproductivas para equinos.(AU)
Assuntos
Animais , Feminino , Ciclo Estral/metabolismo , Ciclo Estral/fisiologia , Ultrassonografia , Ultrassonografia/veterinária , Fenômenos Reprodutivos Fisiológicos/genéticaRESUMO
Nos últimos anos, um número crescente de artigos sobre xenotransplantes ovarianos e testiculares vem sendo publicado e demonstrando com isso o interesse gradual da comunidade científica sobre o tema. O presente artigo versará sobre a construção do conhecimento científico neste campo de pesquisa, os avanços mais recentes e as perspectivas de utilização da técnica associada a outras biotécnicas, além disso, tratará das expectativas nacionais acerca do assunto e atuação do Laboratório de Transplantes Gonadais da UFERSA, em Mossoró-RN, no país e as tendências mundiais no tema.
In recent years, a growing number of publications about ovarian and testicular xenografts has been published and increasing gradually the interest of the scientific community on this theme. This paper will focus on the construction of scientific knowledge in this field of research, the latest advances and perspectives of utilization associated with other biotechniques. Furthermore, deal with national expectations about the subject and performance of the Laboratory of Gonadal Transplantation of UFERSA, in Mossoro-RN-Brazil, as in Brazil and globaltrends in theme.
Assuntos
Animais , Ovário/transplante , Testículo/transplante , Transplante Heterólogo/veterinária , Transplante de Órgãos/veterinária , MamíferosRESUMO
O ciclo estral é a sincronia entre eventos comportamentais, anatômicos e endócrinos que resultam na ovulação, e pode ser dividido em fase lútea e fase folicular. A identificação das fases do ciclo estral da égua pode ser acompanhada por meio de várias biotécnicas reprodutivas como, por exemplo, citologia vaginal classificando os diversos tipos de células do epitélio vaginal, ultrassonografia para avaliação da dinâmica folicular e a dosagem hormonal no plasma sanguíneo ou das fezes do animal para caracterizar a fase do ciclo estral que o animal possivelmente se encontra. Sendo assim, o objetivo desta revisão foi discutir a fisiologia do ciclo estral de éguas, a fim de favorecer novas pesquisas relacionadas à biotécnicas reprodutivas para equinos...
The estrous cycle is the synchrony of behavioral, anatomical and endocrine events that result in ovulation. It can be divided into luteal and follicular phases. The identification of the stages in the estrous cycle of mares can be accomplished through several reproductive biotechnologies, such as, for instance, vaginal cytology classifying the different types of cells in the vaginal epithelium, follicular dynamics evaluated through ultrasound examination, and hormone dosage in blood plasma or feces from the animal to characterize the likely estrous cycle phase. Thus, the objective of this review is to discuss the physiology of the estrous cycle in mares in order to encourage new research related to reproductive biotechnologies for horses...
El ciclo estral es la sincronía entre eventos de comportamiento, anatómicos y endocrinos que resultan en la ovulación, y se puede dividir en fase lútea y fase folicular. La identificación de las etapas del ciclo estral de la yegua puede ser acompañada a través de varias biotécnicas reproductivas como, por ejemplo, citología vaginal, clasificando los diferentes tipos de células del epitelio vaginal, ultrasonido para evaluación de la dinámica folicular y la dosificación hormonal en el plasma sanguíneo o de las heces del animal para caracterizar la fase del ciclo estral que el animal posiblemente se encuentra. Así, el objetivo de esta revisión ha sido examinar la fisiología del ciclo estral de yeguas, con el fin de fomentar nuevas investigaciones relacionadas con las biotecnologías reproductivas para equinos...