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1.
Appl Radiat Isot ; 211: 111414, 2024 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-38925035

RESUMEN

Measurement of independent isomeric yield ratios (IR) of 128,130,132Sb, 131,133Te, 132.134,136I, 135Xe and 138Cs have been carried out for the first time in the epi-cadmium neutron induced fission of 239Pu by using an off-line gamma-ray spectrometric technique. The average neutron energy () of the epi-cadmium reactor neutron spectrum is 1.9 MeV. From the IR values, root mean square fragment angular momenta (JRMS) were deduced by using spin dependent statistical model analysis. Effect of nuclear structure on JRMS values was examined. The present data in the epi-cadmium neutron induced fission of 239Pu were compared with the similar data in the thermal neutron induced fission of 239Pu to examine the role of excitation energy on JRMS values.

2.
Appl Radiat Isot ; 209: 111312, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38603865

RESUMEN

Studies on charge distribution have been carried out in the epi-cadmium neutron induced fission of 238Pu for the first time. Experimentally fractional cumulative yields (FCY) and independent yields (IY) of various fission products have been measured by using an off-line γ-ray spectrometric technique. From the FCY values, the charge distribution parameters such as the isobaric width parameter (σZ), most probable charge (ZP) and the charge polarization (ΔΖEXPT) as a function of fragment mass were obtained. On the other hand, from the measured IY values, isotopic width parameter (σA), the most probable mass (AP) and the elemental yields (YZ) of Sn, Sb, Te, I, Xe, Cs, Ba, La, Ce and Pr were determined by using a non-linear fit. From the YZ values, the proton even-odd effect (δp) was obtained for the first time. The isobaric and isotopic charge distribution parameters in the 238Pu(nf, f) reaction were compared with the similar data in the thermal neutron induced fission of 238Pu and other actinides to examine the role of excitation energy.

3.
Appl Radiat Isot ; 208: 111304, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38522264

RESUMEN

The independent isomeric yield ratios (IR) of 128,130,132Sb, 131,133Te, 132,134,136I, 135Xe and 138Cs have been measured in the epi-cadmium neutron induced fission of 233U by using an off-line gamma-ray spectrometric technique. The average neutron energy of the epi-cadmium reactor neutron spectrum is 1.9 MeV. The root mean square fragment angular momenta (JRMS) were deduced from the IR values by using spin dependent statistical model analysis. The IR and JRMS values of considered fission products in the epi-cadmium neutron induced fission of 233U were compared with the literature data in the thermal neutron induced fission of 233U to examine the influence of excitation energy on nuclear structure effect.

5.
Int J Tuberc Lung Dis ; 22(7): 807-812, 2018 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-29914607

RESUMEN

SETTING: Despite overwhelming evidence for the association between tuberculosis (TB) and tobacco use, it remains neglected in the context of policy, planning and practice. There is limited evidence about the extent of integration of TB and tobacco control programmes in South-East Asia Region (SEAR) countries. OBJECTIVE: To assess the level of TB-tobacco integration in 11 SEAR countries. DESIGN: Cross-sectional study using a structured questionnaire addressed to TB and tobacco focal points at the World Health Organization Country Offices. RESULTS: Apart from India, no country in the SEAR has a formal coordination mechanism for national TB and tobacco control programmes or a system of referral for tobacco users among TB patients for treatment of tobacco dependence. There is no joint planning, joint training or joint supervision and monitoring in any country. CONCLUSION: There is poor integration between TB and tobacco control programmes in most SEAR countries. This assessment fed into the development of a regional framework for TB-tobacco integration, which outlines three strategies: 1) integrated patient-centred care and prevention; 2) joint TB tobacco actions covering policy development, planning, training and monitoring; and 3) research and innovation. Every country in the region should adopt the TB-tobacco integration framework to improve programme performance.


Asunto(s)
Política de Salud , Tabaquismo/prevención & control , Uso de Tabaco/prevención & control , Tuberculosis/prevención & control , Asia Sudoriental , Estudios Transversales , Humanos , Atención Dirigida al Paciente/organización & administración , Desarrollo de Programa , Encuestas y Cuestionarios
7.
Osteoporos Int ; 27(10): 3121-5, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27129455

RESUMEN

UNLABELLED: Mutations of the CYP24A1 gene can result in hypercalcemia, hyerpercalciuria, and nephrolithiasis, but disease severity is variable. Clinical and biochemical phenotypes were correlated with gene sequence information in a family with two CYP24A1 mutations. A gene dose effect was apparent with monoallelic mutations demonstrating milder disease manifestations than biallelic mutations. INTRODUCTION: The objective was to examine the spectrum of clinical and biochemical phenotypes in a family with monoallelic and biallelic mutations of CYP24A1 after identification of the proband with two mutations of the CYP24A1 gene: (A) p.R396W and (B) E143del-Het. METHODS: Clinical and biochemical phenotypes were correlated with CYP24A1 sequence information in the proband and four siblings, a daughter, and two nieces of the proband. The subjects' medical histories were evaluated, and measurement of serum minerals, vitamin D metabolites, PTH, bone turnover markers, and urinary calcium and sequencing of the CYP24A1 gene were performed. RESULTS: The proband had nephrolithiasis, osteopenia, hypercalcemia, hypercalciuria, elevated serum 1,25(OH)2D, undetectable 24,25(OH)2D, and inappropriately low PTH concentrations. Two subjects with biallelic (A/B) mutations had nephrolithiasis, marked hypercalciuria (583 ± 127 mg/24 h, mean ± SD), compared with five subjects with monoallelic mutations (A or B) with a urine calcium of 265 ± 85 mg/24 h. Two subjects with monoallelic mutations had nephrolithiasis and one had non-PTH dependent hypercalcemia. Five subjects had high 1,25(OH)2D measurements, including three with monoallelic mutations. The 25OHD/24,25(OH)2D ratio, in subjects with biallelic mutations was 291 versus 19.8 in the subjects with monoallelic mutations. CONCLUSIONS: In this family, adults with CYP24A1 mutations a gene dose effect is apparent: subjects with biallelic, compound heterozygous mutations (A/B) have a more severe clinical and biochemical phenotype, whereas, subjects with monoallelic mutations demonstrate milder disease manifestations which are not easily characterized through biochemical assessment.


Asunto(s)
Dosificación de Gen , Fenotipo , Vitamina D3 24-Hidroxilasa/genética , Adulto , Anciano , Alelos , Enfermedades Óseas Metabólicas/genética , Calcio/orina , Salud de la Familia , Femenino , Humanos , Hipercalcemia/genética , Hipercalciuria/genética , Masculino , Persona de Mediana Edad , Mutación , Nefrolitiasis/genética , Linaje , Vitamina D/sangre
8.
Neurogastroenterol Motil ; 28(7): 1114-9, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-26914765

RESUMEN

BACKGROUND: Gastrointestinal (GI) and non-GI disorders are associated with altered intestinal permeability, which can be measured in vivo by urinary excretion after oral lactulose and mannitol ingestion. Inadvertent dietary consumption of (12) Carbon ((12) C, regular) mannitol in food or from other sources may interfere with the test's interpretation. (13) Carbon ((13) C) constitutes 1% of carbon in nature and (13) C mannitol is a stable isotope. Our aim was to determine the performance of (13) C mannitol for measurement of intestinal permeability. METHODS: Ten healthy volunteers underwent intestinal permeability assay using coadministered (12) C mannitol, (13) C mannitol and lactulose, followed by timed urine collections. Urinary sugar concentrations were measured using tandem high performance liquid chromatography-mass spectrometry. KEY RESULTS: We found that (13) C mannitol can be distinguishable from (12) C mannitol on tandem mass spectrometry. In addition, (13) C mannitol had ~20-fold lower baseline contamination compared to (12) C mannitol. We describe here the (13) C mannitol assay method for the measurement of intestinal permeability. CONCLUSIONS & INFERENCES: In conclusion, (13) C mannitol is superior to (12) C mannitol for measurement of intestinal permeability. It avoids issues with baseline contamination and erratic excretions during the testing period.


Asunto(s)
Isótopos de Carbono/metabolismo , Isótopos de Carbono/orina , Absorción Intestinal/fisiología , Manitol/metabolismo , Manitol/orina , Biomarcadores/metabolismo , Biomarcadores/orina , Isótopos de Carbono/administración & dosificación , Humanos , Absorción Intestinal/efectos de los fármacos , Mucosa Intestinal/efectos de los fármacos , Mucosa Intestinal/metabolismo , Masculino , Manitol/administración & dosificación , Persona de Mediana Edad , Permeabilidad/efectos de los fármacos , Espectrometría de Masas en Tándem/métodos
9.
Public Health Action ; 5(1): 6-16, 2015 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-26400596

RESUMEN

In 2009, the International Union Against Tuberculosis and Lung Disease (The Union) and Médecins Sans Frontières (MSF) jointly developed a new paradigm for operational research (OR) capacity building and started a new process of appointing and supporting OR fellows in the field. This case study describes 1) the appointment of two OR fellows in The Union South-East Asia Office (USEA), New Delhi, India; 2) how this led to the development of an OR unit in that organisation; 3) achievements over the 5-year period from June 2009 to June 2014; and 4) challenges and lessons learnt. In June 2009, the first OR fellow in India was appointed on a full-time basis and the second was appointed in February 2012-both had limited previous experience in OR. From 2009 to 2014, annual research output and capacity building initiatives rose exponentially, and included 1) facilitation at 61 OR training courses/modules; 2) publication of 96 papers, several of which had a lasting impact on national policy and practice; 3) providing technical assistance in promoting OR; 4) building the capacity of medical college professionals in data management; 5) support to programme staff for disseminating their research findings; 6) reviewing 28 scientific papers for national or international peer-reviewed journals; and 7) developing 45 scientific abstracts for presentation at national and international conferences. The reasons for this success are highlighted along with ongoing challenges. This experience from India provides good evidence for promoting similar models elsewhere.


En 2009, L'Union Internationale contre la Tuberculose et les Maladies respiratoires (L'Union) et Médecins Sans Frontières (MSF) ont élaboré conjointement un nouveau paradigme de renforcement des capacités en recherche opérationnelle et démarré un nouveau processus de recrutement et de soutien de chercheurs en recherche opérationnelle sur le terrain. Cette étude de cas décrit 1) le recrutement de deux chercheurs en recherche opérationnelle dans le bureau de l'Union du Sud-est asiatique (USEA), à New Delhi, Inde ; 2) comment ceci a abouti à l'élaboration d'une unité de recherche opérationnelle dans cette organisation ; 3) les accomplissements sur une période de cinq ans de juin 2009 à juin 2014 ; et 4) les défis et les leçons apprises. En juin 2009, le premier chercheur en recherche opérationnelle (OR) en Inde a été recruté à temps plein et le deuxième a été recruté en février 2012­les deux chercheurs avaient une expérience préalable limitée en OR. De 2009 à 2014, les résultats annuels de la recherche et les initiatives de renforcement des capacités se sont accrues de façon exponentielle et ont inclus : 1) la facilitation de 61 cours/modules de formation à la OR ; 2) la publication de 96 articles, dont plusieurs ont eu un impact durable sur la politique et les pratiques nationales ; 3) la fourniture d'assistance technique à la promotion de l'OR ; 4) un renforcement des capacités des professionnels du collège médical dans la gestion des données ; 5) un soutien au personnel du programme dans la diffusion des résultats de leur recherche ; 6) une revue de 28 articles scientifiques pour les journaux nationaux or internationaux revus par leurs pairs ; et 7) l'élaboration de 45 résumés scientifiques destinés à être présentés lors de conférences nationales et internationales. Les raisons de ce succès sont mises en lumière en même temps que les défis persistants. Cette expérience émanant d'Inde offre des données suffisantes pour promouvoir des modèles similaires ailleurs.


En el 2009, la Unión Internacional contra la Tuberculosis y las Enfermedades Respiratorias (La Unión) y Médicos Sin Fronteras establecieron de manera conjunta un nuevo paradigma de fortalecimiento de la capacidad de practicar la investigación operativa (OR) y pusieron en marcha nuevos mecanismos de nombramiento de los becarios de OR y de respaldo a esta actividad en el terreno. En el presente estudio de casos se describen los siguientes aspectos: 1) el nombramiento de dos becarios de OR en la oficina de La Unión para la Región del Sudeste Asiático de Nueva Delhi en India; 2) la manera como este nombramiento condujo a la creación de una unidad de OR en esta organización; 3) los logros alcanzados durante un período de 5 años entre junio de 2009 y junio del 2014; y 4) las dificultades y las enseñanzas extraídas. En junio del 2009 se nombró el primer becario con dedicación exclusiva a la OR en la India y el segundo nombramiento tuvo lugar en febrero del 2012; ambos investigadores contaban con poca experiencia en esta esfera. Del 2009 al 2014, la producción científica anual y las iniciativas de fortalecimiento de la capacidad investigativa aumentaron de manera exponencial; se pusieron en marcha las siguientes actividades: 1) la facilitación en 61 cursos o módulos de capacitación en OR; 2) la publicación de 96 artículos científicos, algunos de los cuales tuvieron una repercusión duradera en las políticas y las prácticas a escala nacional; 3) la prestación de asistencia técnica encaminada a fomentar la OR; 4) el reforzamiento de la capacidad de gestión de los datos, dirigido a los profesionales de la facultad de medicina; 5) el respaldo a la difusión de los resultados de las investigaciones del personal del programa; 6) la evaluación de 28 artículos científicos para revistas con comité de lectura nacionales e internacionales; y 7) la elaboración de 45 resúmenes científicos que se presentaron en conferencias nacionales e internacionales. En el presente artículo se destacan las razones del éxito de esta iniciativa y las dificultades actuales del proyecto. Esta experiencia en la India aporta datos convincentes en favor de la promoción de modelos similares en otros entornos.

10.
Theor Appl Genet ; 128(6): 1117-36, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25835560

RESUMEN

KEY MESSAGE: This paper describes methods for unlocking genetic treasure from wild perennial Glycine species of Australia for soybean improvement. The genetic resources of the ca. 26 species of the genus Glycine subgenus Glycine have not been exploited to broaden the genetic base of soybean (Glycine max; 2n = 40). The objectives of this study were to develop methods for producing F1, amphidiploid, BC1, BC2, BC3, and fertile soybean plants from crosses of soybean and the genus Glycine subgenus Glycine species, in order to utilize the subgenus Glycine germplasm in soybean breeding. Soybean cultivars were hybridized with six accessions of 78-chromosome G. tomentella as well as one accession each of 40-chromosome G. tomentella, G. argyrea and G. latifolia. They were chosen because they exhibit resistance to soybean rust. We were successful in producing fertile soybean from soybean cv. 'Dwight' and 78-chromosome G. tomentella accession PI 441001, while other hybrids were discontinued either at F1 or amphidiploid stage. The F1 seeds aborted prior to reaching maturity, so developing seeds from 19 to 21 day old pods were cultured aseptically in various media formulations. Seed maturation and multiple embryo generation media were developed. F1 plants with shoots and roots (2n = 59) were transplanted to pots in greenhouse. Amphidiploid (2n = 118) plants were backcrossed to 'Dwight'. BC1 (2n = 79) plants were propagated through in vitro and 43 mature BC2F1 seeds were harvested. Fifteen surviving BC2F1 plants were morphologically distinct, sterile, and had chromosome numbers ranging 2n = 56-59. Chromosome numbers of the BC3F1 plants ranged 2n = 40-49. Derived fertile soybeans were first planted in the field in 2008 and are being evaluated for yield, resistance to pathogens and pests and tolerance to salt through material transfer agreement.


Asunto(s)
Cruzamiento , Quimera/genética , Glycine max/genética , Hibridación Genética , Australia , Cromosomas de las Plantas , Pool de Genes
11.
Osteoporos Int ; 26(5): 1655-60, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25572049

RESUMEN

UNLABELLED: Substantial variability exists in the serum 25(OH)D increase observed in response to vitamin D supplementation. Measurement of circulating cholecalciferol and 24,25(OH)2D, as indicators of vitamin D absorption and degradation, respectively, account for approximately half of the variation in serum 25(OH)D observed following supplementation. INTRODUCTION: Vitamin D supplementation produces a variable response in serum 25(OH)D. This variability likely reflects, in part, differences in vitamin D absorption and/or degradation. Despite this variation in response, virtually all expert recommendations endorse a fixed vitamin D supplementation dose, an approach also used in most prospective studies. Such utilization of a single vitamin D dose does not assure attaining any pre-specified target 25(OH)D level, thereby compromising clinical care and prospective supplementation trials. This study begins addressing this weakness by exploring the feasibility of vitamin D metabolite measurements to predict serum 25(OH)D level attained following supplementation. METHODS: Ninety-one community-dwelling postmenopausal women with baseline 25(OH)D of 10-30 ng/mL received oral vitamin D3, 2300 or 2500 IU, daily for 4-6 months. Serum 25(OH)D, cholecalciferol (D3), and 24,25(OH)2D were measured before and at the end of supplementation to determine if metabolite concentrations allow prediction of the 25(OH)D level attained. RESULTS: From baseline and follow-up data, we derived a multiple linear regression model predicting posttreatment 25(OH)D as follows: final 25(OH)D = 8.3 + (1.05*initial 25(OH)D) - (7.7*initial 24,25(OH)2D) + (0.53*final D3) + (4.2*final 24,25(OH)2D). This model has an adjusted R(2) = 0.55, thus accounting for approximately half of the observed variance in the final 25(OH)D level. CONCLUSIONS: The contributions of circulating cholecalciferol and 24,25(OH)2D to this predictive model can be considered as indicators of intestinal absorption and clearance, respectively. This paradigm requires further study; it may allow efficient "treat-to-25(OH)D-target" strategies useful in optimizing prospective studies and clinical practice.


Asunto(s)
Conservadores de la Densidad Ósea/uso terapéutico , Colecalciferol/uso terapéutico , Suplementos Dietéticos , Osteoporosis Posmenopáusica/tratamiento farmacológico , 24,25-Dihidroxivitamina D 3/sangre , Anciano , Monitoreo de Drogas/métodos , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Osteoporosis Posmenopáusica/sangre , Vitamina D/análogos & derivados , Vitamina D/sangre
12.
Indian J Cancer ; 52(4): 685-8, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26960519

RESUMEN

BACKGROUND: National Tobacco Control Programme was launched in India in year 2007-08. It was realized that community health workers can play an important role of agents for positive change to bring down the tobacco morbidity and mortality in the country. Keeping this in view, a health worker guide was developed by the Government of India, Ministry of Health and Family Welfare (GOI) in collaboration with The Union South-East Asia (The Union) in the year 2010. The guide provides the information needed by the most basic level of health workers to effectively address the problem of tobacco use in the community. A modular training was conducted in two jurisdictions in India (namely, Chandigarh and Hamirpur (Himachal Pradesh)) to assess the usefulness of the guide as training material for community health workers in undertaking tobacco control activities at community and village levels. MATERIALS AND METHODS: A total of 271 participants were trained, which included 133 from Chandigarh and 138 from Hamirpur. The pre and post-training assessment of knowledge of health worker was done. RESULTS: There was marked increase in post-test scores as compared to the pretest scores. The health workers scoring more than 60% increased from 40% in the pretest to over 80% in the post-test. Only three workers had a post-test score of less than 30% against 54 workers in the pretest. CONCLUSION: The understanding on tobacco control had increased significantly after the training in each group. It is strongly recommended that such training should be replicated to all community health workers across all the states in India.


Asunto(s)
Agentes Comunitarios de Salud/educación , Cese del Hábito de Fumar/métodos , Uso de Tabaco/prevención & control , Agentes Comunitarios de Salud/normas , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , India , Masculino
13.
Indian J Cancer ; 51(3): 330-334, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25494132

RESUMEN

Context: A growing number of cities, districts, counties and states across the globe are going smoke-free. While an Indian national law namely Cigarettes and Other Tobacco Products Act (COTPA) exists since 2003 and aims at protecting all the people in our country; people still smoke in public places. Aim: This study assessed knowledge and perceptions about smoking, SHS and their support for Smoke-free laws among people residing in Mohali district, Punjab. Materials and Methods: This cross-sectional study was conducted in Mohali district of Punjab, India. A sample size of 1600 people was obtained. Probability Proportional to Size technique was used for selecting the number of individuals to be interviewed from each block and also from urban and rural population. Statistical Analysis Used: We estimated proportions and tested for significant differences by residence, smoking status, literacy level and employment level by means of the chi-square statistics. Statistical software SPSS for Windows version 20 was used for analysing data . Results: The overall prevalence of current smoking among study participants was 25%. Around 96% were aware of the fact that smoking is harmful to health, 45% viewed second-hand smoke to be equally harmful as active smoking, 84.2% knew that smoking is prohibited in public places and 88.3% wanted the government to take strict actions to control the menace of public smoking. Multivariate logistic regression analysis showed that people aged 20 years and above, unemployed, urban, literate and non-smokers had significantly better perception towards harms of smoking. The knowledge about smoke free provisions of COTPA was significantly better among males, employed individuals, urban residents, and literate people. Conclusions: There was high knowledge about deleterious multi-dimensional effects of smoking among residents and a high support for implementation of COTPA. Efforts should be taken to make Mohali a "smoke-free district".

14.
Hum Reprod ; 29(12): 2764-72, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25336708

RESUMEN

STUDY QUESTION: Are there abnormalities in gonadotrophin secretion, adrenal steroidogenesis and/or testicular steroidogenesis in brothers of women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Brothers of women with PCOS have increased gonadotrophin responses to gonadotrophin releasing hormone (GnRH) agonist stimulation and alterations in adrenal and gonadal steroidogenesis. WHAT IS KNOWN ALREADY: PCOS is a complex genetic disease. Male as well as female first-degree relatives have reproductive features of the syndrome. We previously reported that brothers of affected women have elevated circulating dehydroepiandrosterone sulfate levels. STUDY DESIGN, SIZE, DURATION: This was a case-control study performed in 29 non-Hispanic white brothers of 22 women with PCOS and 18 control men. PARTICIPANTS/MATERIALS, SETTING, METHODS: PCOS brothers and control men were of comparable age, weight and ethnicity. Adrenocorticotrophic hormone (ACTH) and GnRH agonist stimulation tests were performed. Gonadotrophin responses to GnRH agonist as well as changes in precursor-product steroid pairs (delta, Δ) across steroidogenic pathways in response to ACTH and GnRH agonist were examined. MAIN RESULTS AND THE ROLE OF CHANCE: Basal total (T) levels did not differ, but dehydroepiandrosterone (DHEA) levels (0.13 ± 0.08 brothers versus 0.22 ± 0.09 controls, nmol/l, P = 0.03) were lower in brothers compared with control men. ACTH-stimulated Δ17-hydroxypregnenolone (17Preg)/Δ17-hydroxyprogesterone (17Prog) (7.8 ± 24.2 brothers versus 18.9 ± 21.3 controls, P = 0.04) and ΔDHEA/Δandrostenedione (AD) (0.10 ± 0.05 brothers versus 0.14 ± 0.08 controls, P = 0.04) were lower in brothers than in the controls. GnRH agonist-stimulated Δ17Prog/ΔAD (0.28 ± 8.47 brothers versus 4.79 ± 10.28 controls, P = 0.003) was decreased and luteinizing hormone (38.6 ± 20.6 brothers versus 26.0 ± 9.8 controls, IU/l, P = 0.02), follicle-stimulating hormone (10.2 ± 7.5 brothers versus 4.8 ± 4.1 controls, IU/l P = 0.002), AD (1.7 ± 1.4 brothers versus 0.9 ± 1.5 controls, nmol/l, P = 0.02) and ΔAD/ΔT (0.16 ± 0.14 brothers versus 0.08 ± 0.12 controls, P = 0.005) responses were increased in brothers compared with controls. LIMITATIONS, REASONS FOR CAUTION: The modest sample size may have limited our ability to observe other possible differences in steroidogenesis between PCOS brothers and control men. WIDER IMPLICATIONS OF THE FINDINGS: Decreased ACTH-stimulated Δ17Preg/Δ17Prog and ΔDHEA/ΔAD responses suggested increased adrenal 3ß-hydroxysteroid dehydrogenase activity in the brothers. Decreased Δ17Prog/ΔAD and increased ΔAD/ΔT responses to GnRH agonist stimulation suggested increased gonadal 17,20-lyase and decreased gonadal 17ß-hydroxysteroid dehydrogenase activity in the brothers. Increased LH and FSH responses to GnRH agonist stimulation suggested neuroendocrine alterations in the regulation of gonadotrophin secretion similar to those in their proband sisters. These changes in PCOS brothers may reflect the impact of PCOS susceptibility genes and/or programming effects of the intrauterine environment. STUDY FUNDING/COMPETING INTERESTS: This research was supported by P50 HD044405 (A.D.), K12 HD055884 (L.C.T.), U54 HD034449 (A.D., R.S.L.) from the National Institute of Child Health and Development. Some hormone assays were performed at the University of Virginia Center for Research in Reproduction Ligand Assay and Analysis Core that is supported by U54 HD28934 from the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Partial support for some of the clinical studies was provided by UL1 RR025741 and UL1 TR000150 (Northwestern University Clinical and Translational Sciences Institute) from the National Center for Research Resources, National Institutes of Health, which is now the National Center for Advancing Translational Sciences. The authors have no conflict of interest to declare.


Asunto(s)
Gonadotropinas/sangre , Síndrome del Ovario Poliquístico , Esteroides/sangre , 17-alfa-Hidroxipregnenolona/sangre , 17-alfa-Hidroxiprogesterona/sangre , Adolescente , Adulto , Androstenodiona/sangre , Estudios de Casos y Controles , Cortodoxona/sangre , Sulfato de Deshidroepiandrosterona/sangre , Femenino , Humanos , Masculino , Persona de Mediana Edad , Hermanos
15.
Eur J Clin Nutr ; 68(5): 632-4, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24424073

RESUMEN

This study compared serum cholecalciferol and 25-hydroxyvitamin D (25(OH)D) concentrations over four weeks in healthy, non-pregnant, non-lactating females aged 18-40 years, who were randomized to oral cholecalciferol 5000 international units (IU) daily for 28 days or a single dose of 150 000 IU. The study was conducted in Rochester, MN in March and April of 2010. We found no difference in mean 25(OH)D between treatment groups on study day 0 or day 28 (P=0.14 and 0.28, respectively). The daily group had 11 more days of detectable serum cholecalciferol than the single-dose group (P<0.001). There was no difference observed in cholecalciferol area under the curve (AUC28) between groups (P=0.49). However, the single-dose group had a significantly greater mean 25(OH)D AUC28 compared with the daily group (P<0.001).


Asunto(s)
Colecalciferol/administración & dosificación , Colecalciferol/farmacocinética , Suplementos Dietéticos , Adolescente , Adulto , Área Bajo la Curva , Colecalciferol/sangre , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Humanos , Lactancia , Adulto Joven
17.
Public Health Action ; 3(4): 342-5, 2013 Dec 21.
Artículo en Inglés | MEDLINE | ID: mdl-26393059

RESUMEN

SETTING: Compliance assessment surveys are cost-effective means of assessing smokefree status in a jurisdiction. Assigning weights to assessment criteria (indicators) can also inform law implementers and policy makers about the effectiveness of the enforcement of smokefree rules. OBJECTIVE: To develop a standardised measure for compliance surveys using the Delphi method in India. DESIGN: Tobacco control experts from India comprising different constituencies and jurisdictions met for a half-day workshop in August 2012 to deliberate on how weights can be assigned to criteria for smokefree status. Using the Delphi method, the relevance and ranking of criteria from an existing protocol for measuring compliance was evaluated. RESULTS: Consensus was reached on all five compliance survey indicators through three rigorous rounds of discussion. The highest priority was assigned to the absence of the act of smoking in public places (33%), followed by the display of no-smoking signage in public places (32%), absence of cigarette butts or bidi stubs (15%), absence of smoking aids (10%) and absence of tobacco smoke and ash (10%). CONCLUSION: Tobacco control advocates can effectively inform local policy makers using weights that prioritise directed enforcement and targeted interventions, which in turn will ensure stronger compliance and sustainable smokefree settings.

18.
Med J Armed Forces India ; 68(4): 360-5, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24532905

RESUMEN

BACKGROUND: Data show that naval personnel have a high incidence of stress related disorders. A high prevalence of occupational stress was seen in a previous survey carried out on Indian Naval personnel. However, the role of social support in reducing occupational stress was not studied. To study occupational stress in Indian Naval personnel and to study the effect of social support on occupational stress. METHODS: 5077 naval personnel were surveyed using study questionnaires which included Occupational Stress Inventory, Multidimensional Scale of Perceived Social Support, and the General Health Questionnaire (GHQ)-12 item version as a measure of psychological health. The data was statistically analysed using chi square test and other non-parametric tests. RESULTS: High occupational stress was seen in personnel serving afloat (66.47%) as compared to those serving ashore (51.55%) and on submarines (53.72%). Among personnel serving afloat, occupational stress was highest among Junior Sailors as compared to Senior Sailors and Officers. Occupational stress was linked to poor psychological health as measured by the GHQ and younger age. Perceived social support was effective in reducing occupational stress in Officers and Senior Sailors but not in Junior Sailors where paradoxically it seemed to lead to greater occupational stress. CONCLUSIONS: High occupational stress was seen in more than half the service personnel studied. Occupational stress is mitigated by social support in Officers and Senior Sailors but not in Junior Sailors.

20.
Int J Tuberc Lung Dis ; 15(4): 565-6, 2011 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-21396222

RESUMEN

Smoke-free initiatives have gained significant momentum since India enacted comprehensive smoke-free legislation in October 2008. The International Union Against Tuberculosis and Lung Disease has actively supported various levels of government, legislators, civil society, and communities across the country to implement smoke-free public places and comply with the law. On World No Tobacco Day 2010, four jurisdictions demonstrated that public places within their jurisdictions were smoke-free. These jurisdictions cover a wide spectrum of demographic and geographic variation and include an entire state. The demonstration of being 'smoke-free' in these jurisdictions was supported by a simple survey that documented compliance with the smoke-free law in the country.


Asunto(s)
Salud Pública/legislación & jurisprudencia , Fumar/legislación & jurisprudencia , Contaminación por Humo de Tabaco/legislación & jurisprudencia , Recolección de Datos , Adhesión a Directriz , Humanos , India , Política Pública , Prevención del Hábito de Fumar , Contaminación por Humo de Tabaco/prevención & control
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