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1.
Niger J Clin Pract ; 27(5): 643-646, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38842714

RESUMO

BACKGROUND: Mayer-Rokitansky-Kuster-Hauser (MRKH) Syndrome, the second important cause of primary amenorrhea, is characterized by complete mullerian agenesis in the presence of normal karyotype and normal functioning ovaries. Incidence is one in 4500 females. Treatment options include surgical and non-surgical methods. Surgical treatment by creating a neovagina between bladder and rectum is preferred as it gives immediate results. AIM: To evaluate the anatomical and functional outcomes of modified vaginoplasty procedures conducted in our institution. METHODS: An ambispective cohort study was conducted in the Department of Obstetrics and Gynaecology, at a tertiary care hospital and included 10 cases of MRKH syndrome, who underwent surgical treatment in our department. Postoperative outcome was noted. Sexual function was evaluated using the Female Sexual Function Index (FSFI) score. RESULTS: The mean duration of surgery was 40 minutes. The average blood loss during surgery in patients undergoing vaginoplasty was 60 ml. The mean length of the neovagina as measured 1 month after surgery was 7.9 cms. FSFI score was >30 in eight patients. Two patients were lost to follow-up. CONCLUSION: Modified McIndoe vaginoplasty is a simple, safe, and cost-effective procedure in the hands of experts. Only mature patients willing to follow the instructions and planning to get married soon should undergo this surgery.


Assuntos
Transtornos 46, XX do Desenvolvimento Sexual , Anormalidades Congênitas , Ductos Paramesonéfricos , Centros de Atenção Terciária , Vagina , Humanos , Feminino , Vagina/cirurgia , Vagina/anormalidades , Ductos Paramesonéfricos/anormalidades , Ductos Paramesonéfricos/cirurgia , Transtornos 46, XX do Desenvolvimento Sexual/cirurgia , Adulto , Adolescente , Anormalidades Congênitas/cirurgia , Adulto Jovem , Procedimentos de Cirurgia Plástica/métodos , Resultado do Tratamento , Procedimentos Cirúrgicos em Ginecologia/métodos , Estudos de Coortes , Estudos Prospectivos
2.
Hosp Pharm ; 57(1): 121-129, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35521006

RESUMO

Introduction: Little is known about outcomes associated with enoxaparin versus unfractionated heparin (UFH) for venous thromboembolism (VTE) prophylaxis in abdominal surgery patients in U.S. clinical practice. The purpose of this study was to compare VTE, all-cause mortality, PE-related in-hospital mortality, and hospital costs during abdominal surgery hospitalization and the 90 days post-discharge between patients who received enoxaparin versus UFH prophylaxis. Materials and Methods: Using the Premier Healthcare Database, abdominal surgery patients who received at least 1 day of VTE prophylaxis with enoxaparin or UFH were identified between January 1, 2010 and September 30, 2016. Clinical outcomes were assessed using multivariable logistic regression models and cost outcomes were assessed using generalized linear models. Results: Of 363,669 patients identified, 59% received enoxaparin and 41% UFH. In adjusted analyses, there were statistically significant lower odds of VTE (OR 0.80; 95% CI 0.65-0.97), all-cause mortality (OR 0.67; 95% CI 0.60-0.75), and major bleeding (OR 0.88; 95% CI 0.82-0.94) during the hospitalization for enoxaparin versus UFH, but no differences during the 90-days post-discharge or for PE-related mortality. There was a statistically significant lower total hospital cost with enoxaparin versus UFH during index hospitalization ($8,913 vs $9,017, P < .0001), but not post-discharge ($3,342 vs $3,368, P = .42). Unadjusted rates of heparin-induced thrombocytopenia (index:0.1% vs 0.3%; post-discharge: 0.02% vs 0.06%) were reported for enoxaparin and UFH, respectively. Conclusion: In contemporary U.S. hospital practice, statistically significant lower odds of VTE, all-cause mortality and major bleeding with enoxaparin versus UFH prophylaxis were found during abdominal surgery hospitalizations.

3.
J Law Biosci ; 7(1): lsaa058, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32908675

RESUMO

As the COVID-19 pandemic continues to ravage the globe, many nations have started to relax stringent restrictions in an effort to restart the economy. While Member States of the European Union have approached reopening without the use of antibody testing for COVID-19, such testing may be central to a long-term, sustainable strategy for international travel, employment, and the allocation and monitoring of vaccines. As the use of antibody testing to dictate the enjoyment of individual freedom remains highly controversial, we describe its use in the context of three case studies (return to the workplace, travel and vaccination), applying the substantive legal balancing entailed in the proportionality principle. Differential treatment of individuals based on COVID-19 antibody test results can be justified through the proportionality principle, which offers a sound dividing line between a reasonable and legitimate response and an unjust and discriminatory response.

4.
Struct Dyn ; 7(5): 054301, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32953941

RESUMO

We present the experimental end-station TRIXS dedicated to time-resolved soft x-ray resonant inelastic x-ray scattering (RIXS) experiments on solid samples at the free-electron laser FLASH. Using monochromatized ultrashort femtosecond XUV/soft x-ray photon pulses in combination with a synchronized optical laser in a pump-probe scheme, the TRIXS setup allows measuring sub-picosecond time-resolved high-resolution RIXS spectra in the energy range from 35 eV to 210 eV, thus spanning the M-edge (M1 and M2,3) absorption resonances of 3d transition metals and N4,5-edges of rare earth elements. A Kirkpatrick-Baez refocusing mirror system at the first branch of the plane grating monochromator beamline (PG1) provides a focus of (6 × 6) µm2 (FWHM) at the sample. The RIXS spectrometer reaches an energy resolution of 35-160 meV over the entire spectral range. The optical laser system based on a chirped pulse optical parametric amplifier provides approximately 100 fs (FWHM) long photon pulses at the fundamental wavelength of 800 nm and a fluence of 120 mJ/cm2 at a sample for optical pump-XUV probe measurements. Furthermore, optical frequency conversion enables experiments at 400 nm or 267 nm with a fluence of 80 and 30 mJ/cm2, respectively. Some of the first (pump-probe) RIXS spectra measured with this setup are shown. The measured time resolution for time-resolved RIXS measurements has been characterized as 287 fs (FWHM) for the used energy resolution.

5.
J Healthc Qual Res ; 35(3): 149-157, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32423850

RESUMO

BACKGROUND: Patient safety is a global concern, and anaesthesiologists are critically involved in patient safety-related measures and practices. Although anesthesia service has improved a lot over the last few decades, the information on the anesthesia practice and patient safety in India is lacking. The present survey was aimed to get the information on these aspects. METHODS: A cross-sectional, questionnaire-based survey including both postgraduate trainees and anaesthesiologists, working across the different hospitals of India was conducted during February-May 2019. Google form was used as the survey; responses were directly downloaded as an Excel file and calculated in absolute numbers and percentages. Autonomous teaching institutes (ATI) were taken as standard, and Fisher's exact test was used for comparisons; P<0.05 was considered significant. RESULTS: Six-hundred (86.1%) responses were included for analysis. Pulse oximetry and non-invasive blood pressure (NIBP) were available in nearly 99% set-ups, but end-tidal carbon-di-oxide (EtCO2), temperature, oxygen, and anesthesia gas analyzer were lacking. ATI and corporate teaching hospitals were having almost all standard monitoring, but patient safety-related advanced equipment and medications were not present in many of the hospitals. The lack was highest in both public and private non-teaching hospitals (P<0.0001). CONCLUSION: Patient safety and anesthesia-related services in India are unsatisfactory. Except for pulse oximetry and NIBP, the public and private sector non-teaching hospitals were lacking even the standard monitoring. Referral and top-level corporate and public sector institutes also have scope for improvement.


Assuntos
Anestesia , Anestesiologia , Pesquisas sobre Atenção à Saúde , Segurança do Paciente , Padrões de Prática Médica , Estudos Transversais , Humanos , Índia , Internet
6.
Oxid Med Cell Longev ; 2019: 3764252, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31428224
7.
Int J Yoga ; 11(1): 37-43, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29343929

RESUMO

CONTEXT: Postmenopause, an estrogen deficient state comes with increased incidence of cardiovascular diseases (CVDs). Yoga has been described as having a beneficial effect on heart rate variability (HRV), a marker for cardiac autonomic activity which can assess cardiovascular risk, in various populations. AIM: the aim of the study was to study the effect of 3-month long Yoga practice on HRV in early postmenopausal women. SETTINGS AND DESIGN: A prospective longitudinal study of 67 women within 5 years of menopause between 45 and 60 years of age attending menopause clinic of Department of Gynaecology, Sucheta Kriplani Hospital fulfilling inclusion and exclusion criteria and consenting were enrolled for the study. SUBJECTS AND METHODS: HRV of 37 cases (Yoga group) and 30 controls (non-Yoga group) was recorded pre and 3-month postintervention. STATISTICAL ANALYSIS USED: GraphPad Prism Version 5 software was used. Values are a mean and standard error of mean. Statistical significance was set up at P < 0.05. RESULTS: In HRV, frequency domain analysis showed a significant fall in low frequency (LF) in normalized units (nu) and LF: high frequency (HF) ratio and significant rise in HF in nu in the Yoga group (depicting parasympathetic dominance) against a significant rise in LF (nu) and LF: HF ratio and significant fall in HF (nu) in non-Yoga group (indicating sympathetic dominance). Time domain analysis showed a significant decrease in Standard Deviation of NN intervals in Non-Yoga group against nonsignificant changes in Yoga group indicating deterioration in parasympathetic activity in non-Yoga group. CONCLUSIONS: Three-month long Yoga practice improved HRV in early postmenopausal women significantly and has the potential to attenuate the CVD risk in postmenopausal women.

8.
Pediatr Obes ; 13(2): 94-102, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-27923101

RESUMO

BACKGROUND AND OBJECTIVES: Most studies describing childhood obesity in the United States are based on cross-sectional surveys and do not include substantial numbers of American Indians (AI). Secular trends in height and weight reflect general health status. This study describes weight trends and transitions among AI children over a 43-year period. METHODS: Anthropometric data were obtained from a prospective study conducted in a southwestern US AI population (1965 through 2007). For cross-sectional analysis, 12 377 observations were available from 6529 children across four birth cohorts (1955-1964, 1965-1974, 1975-1984, 1985-1994). Participants were stratified into three age groups: pre- (5-9 years), early (10-13) and late (14-17) adolescence. Longitudinal analyses included 1737 children with one exam in each age group. RESULTS: In early and late adolescence, weight increased across birth cohorts. Prevalence of obesity among pre-adolescents was 17.5% (95% CI, 15.1%-19.9%) in the 1955-1964 cohort and 33.7% (95% CI, 30.1%-36.4%) in the 1985-1994 cohort. 74% of children overweight in pre-adolescence in the 1985-1994 cohort became obese by late adolescence; in the 1955-1964 cohort, only 43% made this transition. CONCLUSIONS: This study describes the rising prevalence of childhood obesity. Children obese in pre-adolescence remained obese in late adolescence, stressing the need for early intervention.


Assuntos
Antropometria , Índice de Massa Corporal , Indígenas Norte-Americanos/estatística & dados numéricos , Obesidade Infantil/epidemiologia , Adolescente , Fatores Etários , Peso Corporal , Criança , Desenvolvimento Infantil , Pré-Escolar , Feminino , Humanos , Estudos Longitudinais , Masculino , Prevalência , Estudos Prospectivos , Sudoeste dos Estados Unidos/epidemiologia
9.
Water Environ Res ; 90(2): 101-109, 2018 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-28600862

RESUMO

This paper presents the biophysical impact of various interventions made under watershed development programs, in terms of the creation of additional water resources, and resultant changes in land use and cropping patterns in the Bundelkhand region of Madhya Pradesh State, India. Both primary and secondary data gathered from randomly selected watersheds and their corresponding control villages were used in this study. Analysis revealed that emphasis was given primarily to the creation of water resources potential during implementation of the programs, which led to augmentation of surface and groundwater availability for both irrigation and non-agricultural purposes. In addition, other land based interventions for soil and moisture conservation, plantation activities, and so forth, were taken up on both arable and nonarable land, which helped to improve land slope and land use, cropping pattern, agricultural productivity, and vegetation cover.


Assuntos
Agricultura/métodos , Conservação dos Recursos Naturais/métodos , Recursos Hídricos/provisão & distribuição , Abastecimento de Água/métodos , Índia , Solo , Abastecimento de Água/estatística & dados numéricos
10.
Am J Transplant ; 17(8): 2129-2138, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28188678

RESUMO

Prophylactic ureteric stenting in renal transplantation reduces major urological complications; however, morbidity is related to the indwelling duration of a stent. We aimed to determine the optimal duration for stents in this clinical setting. Patients (aged 2-75 years) from six UK hospitals who were undergoing renal transplantation were recruited and randomly assigned to either early stent removal at 5 days (without cystoscopy) or late removal at 6 weeks after transplantation (with cystoscopy). The primary outcome was a composite of stent-related complications defined as pain, visible hematuria, migration, fragmentation, and urinary tract infections (UTIs) within 3 mo of transplantation. Between May 2010 and Nov 2013, we randomly assigned 227 participants, with 205 included in the final analysis of the primary outcome. Stent-related complications were significantly higher in the late versus early stent removal groups (36 of 126 [28.6%] vs. 6 of 79 [7.6%]; p < 0.001). The majority of stent complications consisted of UTIs, with an incidence of 31 of 126 (24.6%) in the late group compared with 6 of 79 (7.6%) in the early group (p = 0.004). We found early stent removal on day 5 significantly reduced stent-related complications and improved quality of life in the first 3 mo after transplantation (ISRCTN09184595).


Assuntos
Remoção de Dispositivo , Transplante de Rim/efeitos adversos , Complicações Pós-Operatórias/prevenção & controle , Qualidade de Vida , Stents/efeitos adversos , Ureter/cirurgia , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Feminino , Seguimentos , Taxa de Filtração Glomerular , Rejeição de Enxerto/etiologia , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto , Humanos , Falência Renal Crônica/cirurgia , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Prognóstico , Fatores de Risco , Fatores de Tempo , Transplantados , Infecções Urinárias/prevenção & controle , Adulto Jovem
11.
Pediatr Obes ; 12(4): 295-303, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-27170264

RESUMO

BACKGROUND: Childhood obesity is associated with increased cardiometabolic risk. OBJECTIVE: To study the relationship between body mass index (BMI) and cardiometabolic risk factors in American Indian children and adolescents. METHODS: Differences in metabolic variables by age and sex-specific BMI percentiles (2000 Centers for Disease Control and Prevention Growth Charts) were examined in a cross-sectional analysis of 2977 individuals across three age categories. Children with an exam in two consecutive age categories were included in a longitudinal analysis. Spearman's correlations were used to test the association of BMI percentile with anthropometric and biochemical variables. RESULTS: Body mass index percentile correlated with systolic (r = 0.24 to 0.38) and diastolic (r = 0.13 to 0.22) blood pressure, fasting plasma glucose (r = 0.20 to 0.33), 2-h plasma glucose (r = 0.30 to 0.46), total cholesterol (r = 0.12 to 0.23), serum triglycerides (r = 0.40 to 0.51) and HDL cholesterol (r = -0.36 to -0.43) in each age group (5-9, 10-13 and 14-17 years). Among participants examined in multiple age categories, BMI percentile increased over time. Change in BMI percentile from one age category to the next was associated with an increase in fasting glucose, 2-h glucose and triglycerides and a decrease in HDL cholesterol. CONCLUSION: Higher BMI was associated with blood pressure elevation, hyperglycaemia and dyslipidaemia in American Indian children and adolescents.


Assuntos
Índice de Massa Corporal , Dislipidemias/etnologia , Hiperglicemia/etnologia , Obesidade Infantil/etnologia , Adolescente , Pressão Sanguínea , Criança , Pré-Escolar , Estudos Transversais , Dislipidemias/complicações , Feminino , Humanos , Hiperglicemia/complicações , Indígenas Norte-Americanos , Lipídeos/sangue , Estudos Longitudinais , Masculino , Obesidade Infantil/complicações , Fatores de Risco
12.
Tuberculosis (Edinb) ; 101S: S35-S44, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27733245

RESUMO

Pathogens frequently exploit or evade inflammasome activation in order to survive and proliferate. Alternatively, inadequate inflammasome activation by attenuated microorganisms or adjuvanted subunit vaccines may contribute to poor longevity of protection. To further understand these pathways, we determined the differential inflammasome transcriptome of human THP monocyte-derived macrophages in response to Mycobacterium bovis BCG, as compared to LPS or Trypanosoma cruzi. The results identify the highly specific innate recognition programs associated with inflammasome activation by human macrophages exposed to these microbial stimuli. BCG, T. cruzi, and LPS strongly induced expression of both unique and overlapping genes downstream of TLR signaling pathways including cytokines and chemokines that mediate inflammation and regulate cell death pathways. Compared to LPS, BCG failed to directly activate anti-apoptotic molecules and multiple NLR and inflammasome complex components including caspase-1, and actively repressed important signaling intermediates in AP-1 and NFκB transcription factor pathways. Both BCG and T. cruzi repressed expression of TXNIP, an anti-oxidant inhibitor that recruits caspase-1 to the NLRP3 inflammasome, while T. cruzi infection uniquely failed to activate TNF-α. These results identify unique pathogen specific strategies to activate inflammation and modulate cell death that may drive inflammatory outcomes and suggest avenues of investigation to optimize host immunity.


Assuntos
Vacina BCG/farmacologia , Inflamassomos/metabolismo , Ativação de Macrófagos/efeitos dos fármacos , Macrófagos/efeitos dos fármacos , Macrófagos/parasitologia , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Trypanosoma cruzi/patogenicidade , Apoptose/efeitos dos fármacos , Proteínas Reguladoras de Apoptose/metabolismo , Linhagem Celular , Citocinas/metabolismo , Interações Hospedeiro-Patógeno , Humanos , Imunidade Inata/efeitos dos fármacos , Inflamassomos/efeitos dos fármacos , Inflamassomos/genética , Inflamassomos/imunologia , Lipopolissacarídeos/farmacologia , Macrófagos/imunologia , Macrófagos/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/genética , Proteína 3 que Contém Domínio de Pirina da Família NLR/imunologia , Transdução de Sinais/efeitos dos fármacos , Fatores de Tempo , Receptores Toll-Like/metabolismo , Trypanosoma cruzi/imunologia
13.
Am J Transplant ; 16(12): 3443-3457, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27328267

RESUMO

We and others have previously described signatures of tolerance in kidney transplantation showing the differential expression of B cell-related genes and the relative expansions of B cell subsets. However, in all of these studies, the index group-namely, the tolerant recipients-were not receiving immunosuppression (IS) treatment, unlike the rest of the comparator groups. We aimed to assess the confounding effect of these regimens and develop a novel IS-independent signature of tolerance. Analyzing gene expression in three independent kidney transplant patient cohorts (232 recipients and 14 tolerant patients), we have established that the expression of the previously reported signature was biased by IS regimens, which also influenced transitional B cells. We have defined and validated a new gene expression signature that is independent of drug effects and also differentiates tolerant patients from healthy controls (cross-validated area under the receiver operating characteristic curve [AUC] = 0.81). In a prospective cohort, we have demonstrated that the new signature remained stable before and after steroid withdrawal. In addition, we report on a validated and highly accurate gene expression signature that can be reliably used to identify patients suitable for IS reduction (approximately 12% of stable patients), irrespective of the IS drugs they are receiving. Only a similar approach will make the conduct of pilot clinical trials for IS minimization safe and hence allow critical improvements in kidney posttransplant management.


Assuntos
Biomarcadores/metabolismo , Rejeição de Enxerto/diagnóstico , Sobrevivência de Enxerto/imunologia , Tolerância Imunológica/imunologia , Imunossupressores/uso terapêutico , Transplante de Rim/efeitos adversos , Adulto , Idoso , Linfócitos B/efeitos dos fármacos , Linfócitos B/imunologia , Linfócitos B/metabolismo , Estudos de Casos e Controles , Feminino , Seguimentos , Taxa de Filtração Glomerular , Rejeição de Enxerto/tratamento farmacológico , Rejeição de Enxerto/etiologia , Rejeição de Enxerto/metabolismo , Sobrevivência de Enxerto/efeitos dos fármacos , Humanos , Tolerância Imunológica/efeitos dos fármacos , Falência Renal Crônica/complicações , Falência Renal Crônica/cirurgia , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Fatores de Risco
14.
J Clin Diagn Res ; 10(11): AD03-AD04, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28050355

RESUMO

Human hand is involved in variety of precision work which requires a combined effort of forearm muscles as well as intrinsic muscles of hand. Lumbricals along with interossei muscles connect the tendons of flexor and extensor muscles and thus play a key role in the characteristic movements of human hands. Lumbricals originate from long flexor tendon and is inserted into dorsal digital expansion. Any variation in the attachment of these muscles can lead to deviation from the normal actions of the fingers and their proximal extension into carpal tunnel and might lead to carpal tunnel syndrome. An extremely rare case of first lumbrical taking origin solely from first tendon of Flexor Digitorum Superficialis (FDS) and having proximal attachment extending into carpal tunnel was noticed bilaterally in cadaveric dissection. These variations are always challenging for clinicians and surgeons during hand surgeries.

15.
Eye (Lond) ; 30(3): 422-5, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26611845

RESUMO

PURPOSE: To report the outcomes and surgical difficulties during rhegmatogenous retinal detachment (RRD) repair in patients with albinism. METHODS: Retrospective analysis of 10 eyes of 9 patients with albinism that underwent RRD repair was performed. Collected data included demographic details, preoperative examination details, surgical procedure, surgical difficulties, anatomical, and visual outcomes. Outcome measures were retinal reattachment and visual acuity at the last follow-up. RESULTS: Mean preoperative best-corrected visual acuity (BCVA) was logMAR (Logarithm of the Minimum Angle of Resolution) 2.15 (range 0.9-3.0) with preoperative localization of causative break in six eyes. One eye had proliferative vitreoretinopathy grade C1 preoperatively. Four eyes underwent scleral buckling (SB) and six underwent 20G pars plana vitrectomy (PPV) with silicone oil injection. Intraoperative complication as iatrogenic retinal break occurred in four eyes. For retinopexy during vitrectomy, endolaser delivery was possible in three out of six eyes, whereas three eyes had cryopexy. The mean follow-up was 12 months in SB group (range 1-12; median 12 months) and 5.33 months (range 1-12; median 3 months) in PPV group. Among vitrectomized eye, two eyes had recurrence at 3 months with oil in situ. Rest of the eyes had attached retina at last follow-up. Mean BCVA at last follow-up was logMAR -1.46 (range 0.7-2.0) with mean improvement of -0.57 logMAR. CONCLUSIONS: Identification of break, induction of posterior vitreous detachment, and endolaser delivery may be difficult during RRD repair in patients with albinism. The incidence of PVR appeared less in these eyes. Both SB and PPV were efficacious and appear to be good surgical techniques for use in this patient population.


Assuntos
Albinismo Ocular/complicações , Albinismo Oculocutâneo/complicações , Tamponamento Interno , Descolamento Retiniano/cirurgia , Recurvamento da Esclera , Vitrectomia , Adulto , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Descolamento Retiniano/diagnóstico , Descolamento Retiniano/fisiopatologia , Estudos Retrospectivos , Óleos de Silicone/administração & dosagem , Acuidade Visual/fisiologia , Adulto Jovem
16.
Ground Water ; 53(4): 600-13, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25047748

RESUMO

The capacity for subsurface sediments to sequester radionuclide contaminants, such as uranium (U), and retain them after bioremediation efforts are completed is critical to the long-term stewardship of re-mediated sites. In U bioremediation strategies, carbon amendment stimulates bioreduction of U(VI) to U(IV), immobilizing it within the sediments. Sediments enriched in natural organic matter are naturally capable of sequestering significant U, but may serve as sources to the aquifer, contributing to plume persistence. Two types of organic-rich sediments were compared to better understand U release mechanisms. Sediments that were artificially primed for U removal were retrieved from an area previously biostimulated while detrital-rich sediments were collected from a location never subject to amendment. Batch incubations demonstrated that primed sediments rapidly removed uranium from the groundwater, whereas naturally reduced sediments released a sizeable portion of U before U(VI)-reduction commenced. Column experiments confirmed that U release persisted for 65 pore volumes in naturally reduced sediments, demonstrating their sink-source behavior. Acetate addition to primed sediments shifted the microbial community from sulfate-reducing bacteria within Desulfobacteraceae to the iron-reducing Geobacteraceae and Firmicutes, associated with efficient U(VI) removal and retention, respectively. In contrast, Geobacteraceae communities in naturally reduced sediments were replaced by sequences with similarity to Pseudomonas spp. during U release, while U(VI) removal only occurred with enrichment of Firmicutes. These investigations stress the importance of characterizing zones with heterogeneous carbon pools at U-contaminated sites prior to the determination of a remedial strategy to identify areas, which may contribute to long-term sourcing of the contaminants.


Assuntos
Bactérias/metabolismo , Biodegradação Ambiental , Sedimentos Geológicos/microbiologia , Água Subterrânea/química , Urânio/química , Acetatos/química , Bactérias/crescimento & desenvolvimento , Sedimentos Geológicos/química , Consórcios Microbianos , Compostos Orgânicos/química , Poluentes do Solo/química
17.
Indian J Cancer ; 52(1): 61-4, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26837976

RESUMO

BACKGROUND: Development of oral cancer, a widely prevalent cancer in India, is multifactorial with increased risk in those habituated to smoking, consuming alcohol and chewing paan and tobacco. This does not preclude other etiological factors in the causation of this cancer. Exploratory studies on several oncogenic viruses have found varied associations with oral cancers. AIM: The aim of this study was to explore the association of xenotropic murine leukemia virus-related virus, (XMRV) a retrovirus recently implicated in oncogenesis in humans, with oral cancers. SETTINGS AND DESIGN: The presence of XMRV proviral deoxyribonucleic acid (DNA) was evaluated by standard nucleic acid amplification from DNA extracted from representative bits of tumor tissues and adjacent normal tissues from surgically resected specimens sent post-operatively for routine histopathological testing. MATERIALS AND METHODS: This prospective study comprised 109 patients with a provisional diagnosis of oral cancer who were operated at the Oral Oncology Department of Kidwai Memorial Institute of Oncology, over a period of 10 months. RESULTS: XMRV was not found in any of the tumor tissues (squamous cell carcinomas - 98; verrucous carcinomas - 4) nor in any of the normal tissues. It is thus important that the absence of this oncogenic virus in all the cases makes the association of XMRV with oral cancers very unlikely. CONCLUSIONS: There is a need to investigate potentially oncogenic viruses in other solid tumors and in larger sample sizes. Any such association could have implications in detecting, preventing and treating these cancers.


Assuntos
Neoplasias Bucais/patologia , Neoplasias Bucais/virologia , Vírus Relacionado ao Vírus Xenotrópico da Leucemia Murina/patogenicidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Feminino , Humanos , Índia , Masculino , Camundongos , Pessoa de Meia-Idade , Vírus Oncogênicos/patogenicidade , Estudos Prospectivos , Centros de Atenção Terciária
18.
Child Care Health Dev ; 41(1): 67-75, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24827413

RESUMO

BACKGROUND: Long-term childhood conditions are often managed by hospital-based multidisciplinary teams (MDTs) of professionals with discipline specific expertise of a condition, in partnership with parents. However, little evidence exists on professional-parent interactions in this context. An exploration of professionals' accounts of the way they individually and collectively teach parents to manage their child's clinical care at home is, therefore, important for meeting parents' needs, informing policy and educating novice professionals. Using chronic kidney disease as an exemplar this paper reports on one aspect of a study of interactions between professionals and parents in a network of 12 children's kidney units in Britain. METHODS: We conducted semi-structured, qualitative interviews with a convenience sample of 112 professionals (clinical-psychologists, dietitians, doctors, nurses, pharmacists, play-workers, therapists and social workers), exploring accounts of their parent-educative activity. We analysed data using framework and the concept of distributed expertise. RESULTS: Four themes emerged that related to the way expertise was distributed within and across teams: (i) recognizing each other's' expertise, (ii) sharing expertise within the MDT, (iii) language interpretation, and (iv) acting as brokers. Two different professional identifications were also seen to co-exist within MDTs, with participants using the term 'we' both as the intra-professional 'we' (relating to the professional identity) when describing expertise within a disciplinary group (for example: 'As dietitians we aim to give tailored advice to optimize children's growth'), and the inter-professional 'we' (a 'team-identification'), when discussing expertise within the team (for example: 'We work as a team and make sure we're all happy with every aspect of their training before they go home'). CONCLUSIONS: This study highlights the dual identifications implicit in 'being professional' in this context (to the team and to one's profession) as well as the unique role that each member of a team contributes to children's care. Our methodology and results have the potential to be transferred to teams managing other conditions.


Assuntos
Pais/educação , Equipe de Assistência ao Paciente/organização & administração , Relações Profissional-Família , Insuficiência Renal Crônica/terapia , Atitude do Pessoal de Saúde , Criança , Humanos , Relações Interprofissionais , Entrevistas como Assunto , Pais/psicologia , Equipe de Assistência ao Paciente/normas , Pesquisa Qualitativa , Insuficiência Renal Crônica/fisiopatologia , Apoio Social , Reino Unido
19.
Artigo em Inglês | MEDLINE | ID: mdl-24769360

RESUMO

We have applied short range force constant model and used normal coordinate analysis based on G-F matrix method in investigating for Raman and infrared modes in Te doped Bi1-xTa1-xTe2xO4; 0

Assuntos
Bismuto/química , Oxigênio/química , Espectrofotometria Infravermelho , Análise Espectral Raman , Tantálio/química , Telúrio/química , Cristalização , Metais/química , Vibração
20.
Indian J Nephrol ; 24(1): 63-4, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24574638
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