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1.
Braz J Biol ; 84: e276278, 2024.
Article in English | MEDLINE | ID: mdl-38896726

ABSTRACT

Excessive salts in irrigation water and water stress have a negative impact on the productive yield of agricultural crops. In this regard, the objective was to evaluate the effect of combined saline and water stress on the agronomic performance of the beet crop. The experiment was conducted in a greenhouse located at the Universidade da Integração Internacional da Lusofonia Afro-Brasileira, in Redenção, Ceará. The experimental design used was completely randomized with split-plots arrangement. The main plots were formed by the electrical conductivities of the irrigation water (0.8, 1.5, 3.0, 4.5, and 6.0 dS m-1), while the irrigation depths of 50 and 100% of the crop evapotranspiration (ETc) were the subplots, with 6 replications. Saline stress negatively affected growth, biomass, tuber root length, and productivity, while increasing the soluble solids of the beet crop. Excessive salts in the irrigation water caused reductions in physiological indices of the beet crop, although with less severity under the 100% ETc.


Subject(s)
Agricultural Irrigation , Beta vulgaris , Biomass , Beta vulgaris/physiology , Crops, Agricultural , Water , Salt Stress/physiology , Dehydration
2.
Medicina (Ribeirão Preto) ; 54(1)jul, 2021. tab
Article in Portuguese | LILACS | ID: biblio-1353668

ABSTRACT

RESUMO: Introdução: A cabine de segurança biológica (CBS) é um equipamento de proteção coletiva, utilizado para efe-tuar a contenção de aerossóis produzidos nos procedimentos laboratoriais. A CBS protege tanto os trabalhadores, quanto o material manipulado e o meio ambiente. Dispõe de lâmpadas de luz ultravioleta (UV) que possui ação germicida, alterando os ácidos nucleicos dos micro-organismos. Objetivo: O objetivo do presente estudo foi avaliar a ação germicida da luz UV da CBS classe II, tipo A2, frente à cultura de duas espécies de bactérias com diferentes condições de exposição a luz UV. Material e Métodos: Para o desenvolvimento da pesquisa foram utilizadas as bactérias Staphylococcus aureus ATCC 25923 e Klebsiella pneumoniae ATCC 10031, na concentração de 1,5x108 Unidades Formadoras de Colônias/ml (UFC/ml), que após a semeadura em biplacas de Petri foram expostas à luz UV em diferentes condições e tempos. Resultados: Os resultados obtidos revelaram que as espécies de bactérias apresentaram igual perfil de crescimento ou inibição quando submetidas às diferentes condições de exposição. As biplacas de Petri com as tampas abertas e protegidas ou não com embalagem de esterilização apresentaram, nos tempos 15 e 20 minutos, inibição bacteriana. Nas biplacas protegidas pelo papel alumínio e nas biplacas com a tampa fechada, independentemente do tempo e da condição, os micro-organismos apresentaram crescimento bacteriano. Conclusão: Com os resultados obtidos, sugere-se que a ação germicida da luz UV foi eficaz, garantindo a descontaminação adequada e assegurando a qualidade na biossegurança laboratoria. (AU)


ABSTRACT: Introduction: The biological safety cabinet (BSC) is a collective protective device used to hold aerosols produced in laboratory procedures. The BSC protects workers, material handling, and the environment. It relies on ultraviolet light (UV) lamps that have germicidal action, altering the nucleic acids of microorganisms. Objective: The objective of the present study was to evaluate the germicidal action of BSC class II type A2 UV light against the culture of two bacterial species with different conditions of exposure to UV light. Methods: For the research, the bacteria Sta-phylococcus aureus ATCC 25923 and Klebsiella pneumoniae ATCC 10031 were used, at a concentration of 1.5x108Colony Forming Units/ml (CFU/ml), which were seeded in Petri biplates. Use UV light under different conditions and times. Results: The bacterial species showed the same growth or inhibition profile when subjected to different exposure conditions. Petri dishes with the cover open and protected or not with sterilization packaging showed bacterial inhibition at 15 and 20 minutes. The microorganisms in the biplates protected by the aluminum foil and in the biplates with the cover on, regardless of the time and condition, showed bacterial growth. Conclusion: With the results obtained, it is suggested that the germicidal action of UV light was effective, ensuring adequate decon-tamination and ensuring quality in laboratory biosafety. (AU)


Subject(s)
PUVA Therapy , Staphylococcus aureus , Ultraviolet Rays , Bacterial Growth , Decontamination , Klebsiella pneumoniae , Anti-Infective Agents
3.
J Phys Chem A ; 122(41): 8191-8197, 2018 Oct 18.
Article in English | MEDLINE | ID: mdl-30231614

ABSTRACT

We report a combined experimental and theoretical study of the electronic state spectroscopy of acrylic acid (C3H4O2) in the gas phase, by high-resolution vacuum ultraviolet (VUV) photoabsorption measurements in the 4.0-10.8 eV energy range, together with ab initio calculations (vertical energies and oscillator strengths), which were used in the assignment of the valence transitions. We also discuss the Rydberg transitions for this molecular target, obtained using the experimental ionization energies available in the literature. The experimental spectrum presented in this paper represents the highest resolution data yet reported for acrylic acid and reveals new features not previously reported in the literature. The dominant transitions have been assigned to (π*(4a″) ← π(3a″)) and (π*(4a″) ← π(2a″)), the latter exhibiting excitation of the ν5'( a') C = O stretching mode with mean energy of 0.155 eV. The measured absolute photoabsorption cross sections have been used to calculate the photolysis lifetime of acrylic acid in the upper stratosphere (20-50 km).

4.
Scandinavian Journal of Immunology ; 73(5): 408-419, May.2011.
Article in English | Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP, SESSP-IBACERVO | ID: biblio-1067901

ABSTRACT

Leptospirosis is a neglected infectious disease caused by spirochetes from the genus Leptospira. It constitutes a major public health problem in developing countries, with outcomes ranging from subclinical infections to fatal pulmonary haemorrhage and WeilŒs syndrome. To successfully establish an infection, leptospires bind to extracellular matrix compounds and host cells. The interaction of leptospires with pathogen recognition receptors is a fundamental issue in leptospiral immunity as well as in immunophatology. Pathogenic but not saprophytic leptospires are able to evade the host complement system, circulate in the blood and spread into tissues. The target organs in human leptospirosis include the kidneys and the lungs. The association of an autoimmune process with these pathologies has been explored and diverse mechanisms that permit leptospires to survive in the kidneys of reservoir animals have been proposed. However, despite the intense research aimed at the development of a leptospirosis vaccine supported by the genome sequencing of Leptospira strains, there have been relatively few studies focused on leptospiral immunity. The knowledge of evasion strategies employed by pathogenic leptospires to subvert the immune system is of extreme importance as they may represent targets for the development of new treatments and prophylactic approaches in leptospirosis.


Subject(s)
Humans , Immunity, Innate/immunology , Leptospira/classification , Leptospira/immunology , Leptospira/pathogenicity , Complement Activation/immunology , Immunity, Cellular/immunology , Signs and Symptoms/analysis
5.
Scand J Immunol ; 73(5): 408-19, 2011 May.
Article in English | MEDLINE | ID: mdl-21204903

ABSTRACT

Leptospirosis is a neglected infectious disease caused by spirochetes from the genus Leptospira. It constitutes a major public health problem in developing countries, with outcomes ranging from subclinical infections to fatal pulmonary haemorrhage and Weil's syndrome. To successfully establish an infection, leptospires bind to extracellular matrix compounds and host cells. The interaction of leptospires with pathogen recognition receptors is a fundamental issue in leptospiral immunity as well as in immunophatology. Pathogenic but not saprophytic leptospires are able to evade the host complement system, circulate in the blood and spread into tissues. The target organs in human leptospirosis include the kidneys and the lungs. The association of an autoimmune process with these pathologies has been explored and diverse mechanisms that permit leptospires to survive in the kidneys of reservoir animals have been proposed. However, despite the intense research aimed at the development of a leptospirosis vaccine supported by the genome sequencing of Leptospira strains, there have been relatively few studies focused on leptospiral immunity. The knowledge of evasion strategies employed by pathogenic leptospires to subvert the immune system is of extreme importance as they may represent targets for the development of new treatments and prophylactic approaches in leptospirosis.


Subject(s)
Complement System Proteins/immunology , Immune Evasion/immunology , Leptospira/immunology , Leptospirosis/immunology , Animals , Disease Models, Animal , Humans , Immunity, Innate/immunology , Leptospirosis/prevention & control , Zoonoses/microbiology
6.
Current Microbiology ; 60(2): 134-142, 2010.
Article in English | Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP, SESSP-IBACERVO | ID: biblio-1062309

ABSTRACT

Leptospirosis is a zoonotic disease of global distribution, which affects both animals and humans. Pathogenic leptospires, the bacteria that cause this disease, require iron for their growth, and these spirochetes probably use their hemolysins, such as the sphingomyelinases, as a way to obtain this important nutrient from host red blood cells during infection. We expressed and purified the leptospiral sphingomyelinases Sph1, Sph2, Sph4, and SphH in a heterologous system. However, the recombinant proteins were not able to lyse sheep erythrocytes, despite having regular secondary structures. Transcripts for all sphingomyelinases tested were detected by RT-PCR analyses, but only Sph2 and SphH native proteins could be detected in Western blot assays using Leptospira whole extracts as well as in renal tubules of infected hamsters. Moreover, antibodies present in the serum of a human patient with laboratory-confirmed leptospirosis recognized Sph2, indicating that this sphingomyelinase is expressed and exposed to the immune system during infection in humans. However, in an animal challenge model, none of the sphingomyelinases tested conferred protection against leptospirosis.


Subject(s)
Animals , Sphingomyelins , Leptospira , Leptospirosis/microbiology , Gene Expression Profiling
7.
Mol Immunol ; 46(10): 2116-23, 2009 Jun.
Article in English | MEDLINE | ID: mdl-19375167

ABSTRACT

The deficiency of complement C5 is rare and frequently associated with severe and recurrent infections, especially caused by Neisseria spp. We observed the absence of component C5 in the serum of 3 siblings from a Brazilian family with history of consanguinity. The patients had suffered from recurrent episodes of meningitis and other less severe infections. Sera from these patients were unable to mediate hemolytic activity either by the classical or alternative pathways and presented extremely low levels of C5 protein (1.3, 0.9 and 1.0 microg/ml-normal range: 45-190 microg/ml). Hemolytic activity could be restored by the addition of purified C5 to deficient serum. Sequencing of sibling C5 cDNA revealed a homozygous 153 bp deletion that corresponds precisely to exon 30. The parents carried the same deletion but only in one allele. Sequencing of the corresponding region in the genomic DNA revealed a C to G substitution within intron 30 and, most significantly, the substitution of GAG(4028) for GAA(4028) at the 3' end of exon 30 which is most likely responsible for skipping of exon 30. The resulting in-frame deletion in the C5 mRNA codes for a mutant C5 protein lacking residues 1289-1339. These residues map to the CUB and C5d domains of the C5 alpha chain. This deletion is expected to produce a non-functional and unstable C5 protein which is more susceptible to degradation.


Subject(s)
Complement C5/chemistry , Complement C5/genetics , Exons/genetics , Immunologic Deficiency Syndromes/genetics , Immunologic Deficiency Syndromes/immunology , Adolescent , Adult , American Indian or Alaska Native/genetics , Base Sequence , Blotting, Western , Brazil , Child , DNA Mutational Analysis , DNA, Complementary/genetics , Female , Hemolysis , Humans , Infant , Male , Middle Aged , Models, Molecular , Molecular Sequence Data , Pedigree , Protein Stability , Protein Structure, Tertiary
8.
FEBS Letters ; 583(8): 1381-1385, Apr 17,2009.
Article in English | Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP, SESSP-IBACERVO | ID: biblio-1062804

ABSTRACT

The role of TlyA, TlyB and TlyC proteins in the biology of Leptospira is still uncertain. Although these proteins have been considered as putative hemolysins, we demonstrate that leptospiral recombinant TlyB and TlyC do not possess hemolytic activity. However, further experiments showed that TlyC is a surface-exposed protein that seems to bind to laminin, collagen IV and fibronectin. The expression of both proteins was detected both in vitro and in vivo. Our findings suggest that TlyB and TlyC are not directly involved in hemolysis, and that TlyC may contribute to Leptospira binding to extracellular matrix (ECM) during host infection.


Subject(s)
Leptospira interrogans , Leptospirosis/microbiology , Hemolysis , Bacterial Proteins
9.
J. venom. anim. toxins incl. trop. dis ; 15(4): 768-777, 2009. tab
Article in English | LILACS | ID: lil-532759

ABSTRACT

A burn is a lesion on an organic tissue resultant from direct or indirect action of heat on the organism. The present study aimed to evaluate the nutritional, immunological and microbiological status of burn patients at the Bauru State Hospital, São Paulo state, Brazil, in 2007. Eight patients, aged more than 18 years and injured up to 24 hours, were evaluated at the moment of hospitalization and seven days later. All victims were males with a mean age of 38 years. On average, 17.5 percent of their body surfaces were burned and 50 percent of the patients were eutrophic. There were significant alterations in levels of erythrocytes, hemoglobin, hematocrit, total protein and albumin due to increased endothelial permeability, direct destruction of proteins in the heat-affected area and blood loss from lesions or debridement. At a second moment, cytokines IL-6 and TNF-α had augmented significantly, with IL-6 presenting elevated levels in relation to controls at the first moment. Microbiological analysis showed that 100 percent of the samples collected at hospital admission were negative and after one week Staphylococcus aureus was found in all cultures. Therefore, a burn patient may be considered immunosuppressed and these results indicate significant nutritional, immunological and microbiological alterations that can interfere in his recovery.


Subject(s)
Humans , Male , Adult , Infections , Nutritional Status , Burns/complications , Burns/microbiology , Immunologic Tests , Tumor Necrosis Factor-alpha
10.
Infection and Immunity ; 76(6): 2642-2650, Jun.2008.
Article in English | Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP, SESSP-IBACERVO | ID: biblio-1063419

ABSTRACT

LipL32 is the major leptospiral outer membrane lipoprotein expressed during infection and is the immunodominant antigen recognized during the humoral immune response to leptospirosis in humans. In this study, we investigated novel aspects of LipL32. In order to define the immunodominant domains(s) of the molecule, subfragments corresponding to the N-terminal, intermediate, and C-terminal portions of the LipL32 gene were cloned and the proteins were expressed and purified by metal affinity chromatography. Our immunoblot results indicate that the C-terminal and intermediate domains of LipL32 are recognized by sera of patients with laboratory-confirmed leptospirosis. An immunoglobulin M response was detected exclusively against the LipL32 C-terminal fragment in both the acute and convalescent phases of illness. We also evaluated the capacity of LipL32 to interact with extracellular matrix (ECM) components. Dose-dependent, specific binding of LipL32 to collagen type IV and plasma fibronectin was observed, and the binding capacity could be attributed to the C-terminal portion of this molecule. Both heparin and gelatin could inhibit LipL32 binding to fibronectin in a concentration-dependent manner, indicating that the 30-kDa heparin-binding and 45-kDa gelatin-binding domains of fibronectin are involved in this interaction. Taken together, our results provide evidence that the LipL32 C terminus is recognized early in the course of infection and is the domain responsible for mediating interaction with ECM proteins.


Subject(s)
Humans , Leptospirosis/therapy , Lipoproteins/therapeutic use
11.
Clin Endocrinol (Oxf) ; 65(3): 294-300, 2006 Sep.
Article in English | MEDLINE | ID: mdl-16918947

ABSTRACT

OBJECTIVE: PROP1 mutations are the most common cause of genetic combined pituitary hormone deficiency (CPHD). The aim of this study was to investigate the PROP1 gene in two siblings with CPHD. DESIGN: Pituitary function and imaging assessment and molecular analysis of PROP1. PATIENTS: Two siblings, born to consanguineous parents, presented with GH deficiency associated with other pituitary hormone deficiencies (TSH, PRL and gonadotrophins). The male sibling also had an evolving cortisol deficiency. METHODS: Pituitary size was evaluated by magnetic resonance imaging (MRI). PROP1 gene analysis was performed by polymerase chain reaction (PCR), automatic sequencing and Southern blotting. Amplification of sequence tag sites (STS) and the Q8N6H0 gene flanking PROP1 were performed to define the extension of PROP1 deletion. RESULTS: MRI revealed a hypoplastic anterior pituitary in the girl at 14 years and pituitary enlargement in the boy at 18 years. The PROP1 gene failed to amplify in both siblings, whereas other genes were amplified. Southern blotting analysis revealed the PROP1 band in the controls and confirmed complete PROP1 deletion in both siblings. The extension of the deletion was 18.4 kb. The region flanking PROP1 contains several Alu core sequences that might have facilitated stem-loop-mediated excision of PROP1. CONCLUSIONS: We report here a complete deletion of PROP1 in two siblings with CPHD phenotype.


Subject(s)
Dwarfism, Pituitary/genetics , Homeodomain Proteins/genetics , Hypopituitarism/genetics , Adolescent , Blotting, Southern , Consanguinity , Dwarfism, Pituitary/pathology , Female , Gene Deletion , Homozygote , Humans , Hypopituitarism/pathology , Male , Pituitary Gland, Anterior/pathology , Siblings
12.
Hum Mutat ; 13(2): 146-53, 1999.
Article in English | MEDLINE | ID: mdl-10094551

ABSTRACT

Denys-Drash and Frasier syndromes are rare human disorders that associate nephropathy with gonadal and genital abnormalities. In DDS there is a predisposition to Wilms' tumor. Heterozygous point mutations in the Wilms' tumor, type1 gene (WT1), particularly those altering the zinc finger (ZF) encoding exons, have been reported in most DDS patients, while mutations in intron 9 of the same gene cause FS. This paper describes two cases of DDS, one FS and one patient with Wilm's tumor and intersex genitalia, in which mutations were searched by sequencing the exons 8 and 9 of WT1 gene. Patient 1 carried a missense point mutation in exon 8 (ZF2), converting a CGA-Arg codon to a TGA-stop codon. Patient 2 presented a single nucleotide deletion within exon 9 (ZF3) introducing a premature chain termination at codon 398. Patients 3 and 4 had a C-->T transition at position +4 of the second alternative splice donor site of exon 9 (this mutation was detected in peripheral blood and in tumor derived DNA of patient 3). However, patient 3 had previously developed a Wilms' tumor. This is the first case of Wilms' tumor development in a phenotypically and genetically confirmed case of FS.


Subject(s)
Genes, Wilms Tumor/genetics , Gonadal Dysgenesis/genetics , Kidney Failure, Chronic/genetics , Mutation/genetics , RNA Splicing/genetics , Urogenital Abnormalities/genetics , Wilms Tumor/genetics , Adolescent , Base Sequence , Child , DNA Mutational Analysis , Female , Humans , Male , Molecular Sequence Data , Syndrome , Wilms Tumor/complications
13.
Arq. bras. med. vet. zootec ; 50(6): 753-8, dez. 1998. tab
Article in Portuguese | LILACS | ID: lil-265558

ABSTRACT

O objetivo deste estudo foi estimar parâmetros genéticos e propor um índice de seleçäo para o peso do leitäo ao nascer, aos 21 e aos 42 dias de idade em 3933 suínos da raça Piau, pela utilizaçäo da metodologia de modelos mistos aplicada em modelo animal. As estimativas de herdabilidade para o peso do leitäo ao nascer, aos 21 e aos 42 dias de idade foram iguais a 0,11, 0,20 e 0,10, respectivamente. O efeito permanente de ambiente associado ao efeito de leitegada revelou-se importante fraçäo na variância fenotípica, em todas as características analisadas. A correlaçäo entre o índice de seleçäo e o agregado genotípico (rHI subscrito) foi igual a 0,41, sendo que os valores de ponderaçäo das características peso do leitäo ao nascer, aos 21 e aos 42 dias de idade, no índice foram iguais a 4,24, 0,92 e 0,54, respectivamente. A perda em eficiência no rHI subscrito foi maior para o peso do leitäo ao nascer do que para os demais pesos


Subject(s)
Animals , Selection, Genetic , Swine
14.
Hum Genet ; 101(2): 181-5, 1997 Dec.
Article in English | MEDLINE | ID: mdl-9402965

ABSTRACT

Cytogenetic studies of normal and tumor cells in a patient with gonadal dysgenesis and bilateral gonadoblastoma were performed. The karyotype was 46,XY in peripheral blood lymphocytes and skin fibroblasts. The conserved region of the SRY gene was detected by polymerase chain reaction amplification. Sequencing of this region did not reveal any alterations. A 46,XY chromosome constitution was observed in the right gonadoblastoma, but a partial deletion of chromosome 13 was present in the left tumor. This deletion included band 13q14, where the retinoblastoma gene is mapped. The study of the polymorphism of the variable number of tandem repeats region in intron 17 of the RB1 locus disclosed loss of heterozygosity in both the left tumor, which showed the deletion of chromosome 13, and in the right tumor, where no chromosome alterations of chromosome 13 were detected. In situ hybridization covering 130 kb of RB1 showed that a partial deletion of one of the RB1 alleles had occurred in the right tumor. Since the deletions affected different alleles in each tumor, independent events must have been involved in the development of the tumors. These findings point toward a significant role of RB1 in the development of gonadoblastoma.


Subject(s)
Gene Deletion , Genes, Retinoblastoma , Gonadal Dysgenesis, 46,XY/genetics , Gonadoblastoma/genetics , Adolescent , Chromosome Banding , Chromosomes, Human, Pair 13 , Exons , Female , Gonadal Dysgenesis, 46,XY/complications , Gonadoblastoma/complications , Humans , In Situ Hybridization, Fluorescence , Polymerase Chain Reaction , Sequence Analysis, DNA
15.
Arq. bras. med. vet. zootec ; 47(4): 571-82, ago. 1995. tab
Article in Portuguese | LILACS | ID: lil-239889

ABSTRACT

Dois experimentos de digestibilidade foram realizados, utilizando-se 18 leitöes machos, castrados, da raça Piau, no experimento I e 18 mestiços das Landrace x Large White (LDxLW) no experimento II, com o objetivo de determinar e comparar os valores nutritivos do milho BR-451 e do milho comum, em termos de digestibilidade dos seus nutrientes. Animais de ambos os grupos apresentaram peso médio inicial de 27 kg. Näo houve interaçäo (P>0,05) entre grupos e variedades de milho para os coeficientes de digestibilidade (CD) da matéria seca, proteína bruta e energia bruta das raçöes experimentais. Tampouco houve diferença significativa (P>0,05) entre os CD das variedades de milho ou entre grupos. No balanço da energia e do nitrogênio, näo houve interaçäo significativa (P>0,05) de grupos x variedades, indicando que, também nestes aspectos, ambos os milhos podem ser igualmente utilizados por suínos em crescimento da raça Piau ou mestiços LDxLW


Subject(s)
Animals , Animal Nutritional Physiological Phenomena , Digestion , Swine/growth & development , Zea mays
16.
Arq. bras. med. vet. zootec ; 47(2): 229-37, abr. 1995. tab
Article in Portuguese | LILACS | ID: lil-239959

ABSTRACT

Estudou-se o efeito de níveis de energia digestível (ED) sobre o desenvolvimento ponderal, consumo e conversäo alimentar de suínos da raça Piau, dos 12 aos 85 kg de peso vivo. O experimento utilizou 32 machos castrados e 32 fêmeas, recebendo quatro níveis de energia (3.100, 3.250, 3.400 e 3.550 kcal ED/kg), em raçöes fareladas e isoprotéicas por faixa de peso. O delineamento experimental foi o inteiramente ao acaso, com quatro níveis de energia, dois sexos e dois animais por parcela, em arranjo fatorial. O ganho de peso diário e a conversäo alimentar aumentaram (P<0,05) proporcionalmente ao aumento do nível de energia, até o limite de 3.400 kcal ED/kg, quando se estabilizaram. Näo houve diferença entre machos castrados e fêmeas em quaisquer das variáveis estudadas, assim como näo houve interaçäo entre sexo e nível de energia. O padräo de resposta do porco tipo banha à variaçäo do nível de energia da dieta mostrou-se semelhante ao relatado para suínos tipo carne. O melhor desempenho do porco Piau foi obtido com a concentraçäo de 3.400 kcal ED/kg de raçäo


Subject(s)
Animals , Male , Female , Digestion , Electric Power Supplies/economics , Animal Feed/economics , Swine/growth & development
17.
Cad Saude Publica ; 11(1): 72-84, 1995.
Article in Portuguese | MEDLINE | ID: mdl-14528359

ABSTRACT

This cross-sectional study is aimed at the identification of patterns in the utilization of health care services in Pau da Lima, a neighborhood in the city of Salvador, Bahia. In 1992, a household survey was carried out with 384 families selected through a random cluster sampling design. In each household, the family head or a surrogate informant was asked to answer a questionnaire about their use of any type of health care in the last month. From the total of 1,887 individuals, 236 reported at least one visit to health facilities during the referent period This means an estimated prevalence of health services utilization of 12.5%. With regard to the type of services, 25.9% of all visits were made to public sector facilities. Attendants were mainly women (73.7%) from 15 to 29 years of age. The main reason reported for the choice of the health facility was availability (63.7%), and the major reason for seeking health care was disease-related conditions (75.7%), rather than preventive procedures. These findings may result from the still unfinished process of distritalização(district allocation of services), which is evident in the lack of health services' infrastructure or coverage, as well as in persistent organizational problems. These issues may lead the population living in the respective district to seek health care outside the assigned catchment area. The authors discuss these findings in the context of the expansion of the private sector in the health area and the financial collapse of the public budget in Brazil.

18.
Hum Genet ; 95(1): 63-6, 1995 Jan.
Article in English | MEDLINE | ID: mdl-7814028

ABSTRACT

This paper reports a case of XY gonadal dysgenesis in two sisters. Both patients presented an eunochoid female phenotype with normal external genitalia. At laparotomy, the elder sister was found to have bilateral gonadoblastoma. Cytogenetic studies, which included G and C banding and in situ hybridization, showed that the patients had an apparently normal 46, XY karyotype. PCR analyses revealed absence of the conserved portion (HMG box) of the SRY gene and of the Y chromosome pseudoautosomal boundary region sequence in both patients. The presence of the ZFY sequence was detected by Southern hybridization in the two affected sisters. The patients' father (46, XY, no mosaicism detected in peripheral blood lymphocytes) was positive for SRY and ZFY sequences. The occurrence of gonadoblastoma is discussed in terms of the genetic factors that may lead to tumor development.


Subject(s)
Chromosome Deletion , DNA-Binding Proteins/genetics , Gonadal Dysgenesis, 46,XY/genetics , Gonadoblastoma/genetics , Nuclear Proteins , Ovarian Neoplasms/genetics , Transcription Factors , Y Chromosome , Adolescent , Adult , Base Sequence , DNA Primers , Female , Gonadal Dysgenesis, 46,XY/complications , Gonadoblastoma/complications , Humans , Molecular Sequence Data , Ovarian Neoplasms/complications , Sex-Determining Region Y Protein
19.
Am J Med Genet ; 52(1): 39-43, 1994 Aug 01.
Article in English | MEDLINE | ID: mdl-7977459

ABSTRACT

Two agonadic sisters, one with a 46,XY and the other with a 46,XX karyotype, both with normal female external genitalia and hypoplastic Müllerian derivatives, born to a consanguineous marriage, were studied from a clinical, endocrinological, histological, and genetic perspective. Using PCR amplification, Southern hybridization, and DGGE analysis, it was found that the XY patient had no mutations in the conserved sequence of the SRY gene, the putative testis-determining gene in mammals, whereas her XX affected sister is SRY-negative. To our knowledge, this is the first report of XY and XX sibs in familial gonadal agenesis without other somatic abnormalities. The involvement of an autosomal locus impeding gonadal development in both sexes is discussed.


Subject(s)
Chromosome Aberrations , Gonadal Dysgenesis/genetics , Adult , Base Sequence , Female , Gonadal Dysgenesis, 46,XY/genetics , Humans , Karyotyping , Molecular Sequence Data , Polymerase Chain Reaction
20.
Arq. bras. med. vet. zootec ; 46(3): 279-89, jun. 1994. tab
Article in Portuguese | LILACS | ID: lil-240192

ABSTRACT

Foram estudadas as características de comportamento sexual, as dimensöes escrotais e as propriedades do sêmen de 14 varöes Piau entre 22 e 36 meses de idade, com (n=8) e sem (n=6) experiência sexual. Os resultados de 114 observaçöes da monta e de 54 ejaculados foram: duraçäo do prelúdio, 5,37 mais ou menos 3,84 min.; 3,43 mais ou menos 2,47 tentativas de monta; controle olfativo, 72,81 por cento; salivaçäo, 52,63 por cento, duraçäo da ejaculaçäo, 3,86 mais ou menos 1,32 min. O comprimento médio dos testículos, largura total e comprimento médio da cauda dos epidídimos foram de 9,49 mais ou menos 0,75 cm; 10,67 mais ou menos 1,11 cm e de 4,28 mais ou menos 0,41 cm, respectivamente. A avaliaçäo do sêmen resultou em volume filtrado, 149,44 mais ou menos 40,89 ml; volume de gel, 26,42 mais ou menos 9,78 ml; 61,11 mais ou menos 9,45 por cento de motilidade; vigor de grau 3 e de grau 4 em 37,04 por cento e 48,15 por cento dos ejaculados, respectivamente; aspecto seroso ou sero-leitoso em 83,33 por cento dos casos; concentraçäo espermática, determinada em hemocitômetro, de 167,15 mais ou menos 78,93 x 10 elevado à sexta potência células, por ml, e o número total de células de 24,23 mais ou menos 14,72 x 10 elevado à nona potência células. Foram encontradas as seguintes anormalidades espermáticas, ao microscópio de contraste de fase, em amostras näo coradas: 6,92 mais ou menos 10,71 por cento de defeitos de cauda, GPD, alteraçöes múltiplas, colo, GPP, cabeça e acrossoma, todos com médias inferiores a 0,90 por cento. Recomenda-se maiores estudos quanto à fertilidade do varäo Piau


Subject(s)
Animals , Cattle/anatomy & histology , Semen/physiology , Sexual Behavior, Animal , Testis/anatomy & histology , Biometry
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