361 research outputs found
Phenol Content, Antioxidant Activity and Fibers Profile of Four Tropical Seagrasses From Indonesia
Extracts of methanol, ethyl acetate, and n-hexane of four species of Indonesian seagrasses were used to determine the total phenol contents and their antioxidant activities. Total phenol contents of each extract was determined by spectrophotometer using Follin-Ciocalteu reagent, and the antioxidant activity was measured using 1,1-diphenyl-2-picrylhydrazyl (DPPH). The profile of fibers of each fresh seagrass was performed according to an enzymatic-gravimetric method. All of methanol extracts contained high number of total phenol, except Syringodium isoetifolium the highest content was found in ethyl acetate extract; so that methanol extracts of Thalassia hemprichii, Cymodocea rotundata, Enhalus acoroides and ethyl acetate extract of Syringodium isoetifolium had the highest activities on scavenging DPPH radical. The phenol content in tropical seagrasses was tending to soluble in polar and semi-polar solvents. There was no significant different on the content of total fibers, with values ranges was from 14.32 g/100 g to 15.39 g/100 g. However, the highest content of soluble fiber was found in Enhalus acoroides (8.93 g/100 g) and significantly differed to others
Penambahan Rimpang Temulawak (Curcuma xanthorriza Roxb) dan Mineral Zink dalam Pakan untuk Menilai Performans, Organ Fisiologi, dan Gambaran Darah Ayam Broiler dalam Situasi Stress Panas
Penambahan rimpang temulawak (Curcuma xanthorriza Roxb) dan mineral zink dalam pakan terhadap performan, bobot organ fisiologi, persentase karkas, dan gambaran darah broiler dalam situasi panas. Pada studi ini digunakan ayam broiler CP 707 sejumlah 80 ekor, menggunakan metode eksprimen. Penambahan rimpang temulawak pada pakan basal dan mineral zink pada air minum, yaitu P0 (pakan basal tanpa temulawak dan zink), P1 (1% rimpang temulawak dan 40 ppm mineral zink), P2 (2% rimpang temulawak dan 40 ppm mineral zink), dan P3 (3% rimpang temulawak dan 40 ppm mineral zink). Peubah yang diukur performan (pertambahan bobot badan, kosumsi ransum, konversi ransum, dan kosumsi air minum), bobot organ fisiologi (bobot hati, tiroid, ginjal, dan limpa), karkas (bobot karkas, persentase karkas, dan lemak abdominal) serta gambaran darah (jumlah eritrosit, hemoglobin, dan nilai hematokrit). Analisa keragaman mengartikan bahwa penggunaan rimpang temulawak dalam pakan dan mineral zink melalui air minum menunjukkan tidak berpengaruh nyata (P>0,05) pada peubah. Kesimpulannya bahwa walaupun ayam broiler dalam situasi panas akan dapat di atasi dengan penambahan rimpang temulawak dalam pakan basal dan pemberian mineral zink melalui air minum
Masivukeni: Development of a Multimedia Based Antiretroviral Therapy Adherence Intervention for Counselors and Patients in South Africa
Effective medical treatment for HIV/AIDS requires patientsâ optimal adherence to antiretroviral therapy (ART). In resource-constrained settings, lack of adequate standardized counseling for patients on ART remains a significant barrier to adherence. Masivukeni (âLetâs Wake Upâ in Xhosa) is an innovative multimedia-based intervention designed to help people living with HIV in resource-limited settings achieve and maintain high levels of ART adherence. Adapted from a couples-based intervention tested in the United States (US), Masivukeni was developed through community-based participatory research with US and South African partners and informed by Ewartâs Social Action Theory. Innovative computer-based multimedia strategies were used to translate a labor- and training-intensive intervention into one that could be readily and widely used by lay counselors with relatively little training with low-literacy patients. In this paper, we describe the foundations of this new intervention, the process of its development, and the evidence of its high acceptability and feasibility
Extraction of cluster parameters with future Sunyaev-Zel'dovich observations
The Sunyaev-Zel'dovich (SZ) effect of galaxy clusters is characterized by
three parameters: Compton parameter, electron temperature and cluster peculiar
velocity. In the present study we consider the problem of extracting these
parameters using multi-frequency SZ observations only. We show that there
exists a parameter degeneracy which can be broken with an appropriate choice of
frequencies. As a result we discuss the optimal choice of observing frequencies
from a theoretical point of view. Finally, we analyze the systematic errors (of
the order micro K) on the SZ measurement introduced by finite bandwidths, and
suggest a possible method of reducing these errors.Comment: 20 pages, 13 figures, to be published in JCA
Epidemiology of drug-resistant tuberculosis among children and adolescents in South Africa, 2005-2010
OBJECTIVE : To describe the demographic and clinical characteristics of children and adolescents diagnosed with resistance to any anti-tuberculosis drug (drug-resistant tuberculosis; DR-TB) in South Africa. DESIGN : We retrospectively reviewed medical records of all children (<13 years) and adolescents (13 to <18 years) with DR-TB at specialty hospitals in four South African provinces from 2005 to 2010. RESULTS : During the review period, 774 children and adolescents (median age 11.3 years) were diagnosed with DR-TB at selected facilities. A high proportion of patients had a history of previous TB treatment (285/631; 45.2%), human immunodeficiency virus (HIV) infection (375/685; 54.7%), contact with a TB case (347/454; 76.4%), and smear-positive (443/729; 60.8%), cavitary (253/680, 38.7%) disease. Eighty-two per cent of patients with HIV infection received antiretroviral therapy. Of 626 patients diagnosed with multidrug-resistant TB (MDR-TB), 561 (89.6%) received a regimen consistent with national guidelines; the median length of treatment was 22 months (IQR 16-25). Among 400 patients with any DR-TB and a known outcome, 20.3% died during treatment. CONCLUSION : Pediatric DR-TB in these provinces is characterized by complex clinical features at diagnosis, with one in five children dying during treatment. History of previous treatment and contact with a TB patient indicate opportunities for earlier diagnosis and treatment to improve outcomes.U.S. Agency for International Development and U.S. Centers for Disease Control and Prevention, with additional support from the South Africa National Institute for Communicable Diseases and the South African Medical Research Council.http://www.ingentaconnect.comcontent/iuatld/ijtld2015-12-01hb201
New genetic loci implicated in fasting glucose homeostasis and their impact on type 2 diabetes risk.
Levels of circulating glucose are tightly regulated. To identify new loci influencing glycemic traits, we performed meta-analyses of 21 genome-wide association studies informative for fasting glucose, fasting insulin and indices of beta-cell function (HOMA-B) and insulin resistance (HOMA-IR) in up to 46,186 nondiabetic participants. Follow-up of 25 loci in up to 76,558 additional subjects identified 16 loci associated with fasting glucose and HOMA-B and two loci associated with fasting insulin and HOMA-IR. These include nine loci newly associated with fasting glucose (in or near ADCY5, MADD, ADRA2A, CRY2, FADS1, GLIS3, SLC2A2, PROX1 and C2CD4B) and one influencing fasting insulin and HOMA-IR (near IGF1). We also demonstrated association of ADCY5, PROX1, GCK, GCKR and DGKB-TMEM195 with type 2 diabetes. Within these loci, likely biological candidate genes influence signal transduction, cell proliferation, development, glucose-sensing and circadian regulation. Our results demonstrate that genetic studies of glycemic traits can identify type 2 diabetes risk loci, as well as loci containing gene variants that are associated with a modest elevation in glucose levels but are not associated with overt diabetes
Adaptation of a Couple-Based HIV Intervention for Methamphetamine-Involved African American Men who have Sex with Men
In the U.S., incidence of HIV infection among men who have sex with men (MSM) has steadily increased since the 1990s. This points to a need for innovation to address both emerging trends as well as longer-standing disparities in HIV risk and transmission among MSM, such as the elevated rates of HIV/STIs among African American MSM and methamphetamine users. While couple-based sexual risk reduction interventions are a promising avenue to reduce HIV/STI transmission, prior research has been almost exclusively with heterosexual couples. We sought to adapt an existing, evidence-based interventionâoriginally developed and tested with heterosexual couplesâfor a new target population consisting of African American MSM in a longer-term same-sex relationship where at least one partner uses methamphetamine. The adaptation process primarily drew from data obtained from a series of focus groups with 8 couples from the target population. Attention is given to the methods used to overcome challenges faced in this adaptation process: limited time, a lead investigator who is phenotypically different from the target population, a dearth of descriptive information on the experiences and worldviews among the target population, and a concomitant lack of topical experts. We also describe a visualization tool used to ensure that the adaptation process promotes and maintains adherence to the theory that guides the intervention and behavior change. The process culminated with an intervention adapted for the new target population as well as preliminary indications that a couple-based sexual-risk reduction intervention for African American, methamphetamine-involved male couples is feasible and attractive
Dietary factors impact on the association between CTSS variants and obesity related traits.
Cathepsin S, a protein coded by the CTSS gene, is implicated in adipose tissue biology--this protein enhances adipose tissue development. Our hypothesis is that common variants in CTSS play a role in body weight regulation and in the development of obesity and that these effects are influenced by dietary factors--increased by high protein, glycemic index and energy diets
Advanced material against human (Including Covidâ19) and plant viruses: nanoparticles as a feasible strategy
The SARSâCoVâ2 virus outbreak revealed that these nanoâpathogens have the ability to rapidly change lives. Undoubtedly, SARSâCoVâ2 as well as other viruses can cause important global impacts, affecting public health, as well as, socioeconomic development. But viruses are not only a public health concern, they are also a problem in agriculture. The current treatments are often ineffective, are prone to develop resistance, or cause considerable adverse side effects. The use of nanotechnology has played an important role to combat viral diseases. In this review three main aspects are in focus: first, the potential use of nanoparticles as carriers for drug delivery. Second, its use for treatments of some human viral diseases, and third, its application as antivirals in plants. With these three themes, the aim is to give to readers an overview of the progress in this promising area of biotechnology during the 2017â2020 period, and to provide a glance at how tangible is the effectiveness of nanotechnology against viruses. Future prospects are also discussed. It is hoped that this review can be a contribution to general knowledge for both specialized and nonâspecialized readers, allowing a better knowledge of this interesting topic.REDESâANID. Grant Number: 180003
Universidad de La Frontera. Grant Number: DI20â1003
FAPESP. Grant Numbers: 2018/08194â2, 2018/02832â7
CNPq. Grant Numbers: 404815/2018â9, 313117/2019â5
CONICYT/FAPESP. Grant Number: 2018/08194â2
Coordenação de Aperfeiçoamento de Pessoal de NĂvel Superior. Grant Numbers: 001, ANID/FONDAP/15130015
FCT. Grant Number: PTDC/CTMâTEX/28295/2017
FEDER
POCI
Portugal 2020 program
COMPETE. Grant Number: UID/CTM/00264/2019
FCT/MCTE
Osteoarthritis: 119. The Effectiveness of Exercise Therapy with and without Manual Therapy for Hip Osteoarthritis: A Multicentre Randomised Controlled Trial
Background: Current evidence indicates that exercise therapy (ET) has a short and medium-term benefit for hip osteoarthritis (OA), but evidence is inconclusive regarding the effect of manual therapy (MT). The primary aim of this randomised controlled trial was to determine the effectiveness of ET with and without MT on clinical outcomes for individuals with hip OA. A secondary aim was to ascertain the effect of an 8-week waiting period on outcomes. Methods: 131 men and women with hip OA recruited in four hospitals were initially randomised to one of three groups: ET (nâ=â45), a combination of ET and MT (nâ=â43) and wait-list control (nâ=â43). The two intervention groups underwent individualised ET or ET/MT for 8 weeks. Patients in the control group waited 8 weeks and were randomised to receive either ET or ET/MT after 9 week follow-up, and pooled with original treatment group data: ET (nâ=â66) and ET/ MT (nâ=â65). All participants were followed up at 9 and 18 weeks and the control group was reassessed at 27 weeks (18 weeks post-treatment) by the same blinded assessor. The primary outcome measure was the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Other outcomes included sit-to-stand, 50-foot walk test, pain severity, hip range of motion (ROM), anxiety, depression, quality of life (QOL), analgesic usage, physical activity, patient-perceived change and patient satisfaction. Intention-to-treat analysis was performed to determine within-group change and between-group differences for the three groups at baseline and 9 weeks, and the two treatment groups at baseline, 9 and 18 weeks. Results: Eight patients (6.1%) were lost to follow-up at 9 weeks and 19 (14.5%) were lost to follow-up by 18 weeks. Both ET (nâ=â66) and ET/MT groups (nâ=â65) showed significant within-group improvements in WOMAC, pain severity, sit-to-stand and HROM measures at 9 weeks, which were still evident at 18 weeks. There was no significant within-group change in anxiety, depression, QOL, analgesic usage, 50-foot walk test or physical activity. There was no significant difference between the two intervention groups for any of the outcomes. Regarding the results of the original ET, ET/MT and control group allocation, there was a significant improvement in one or both ET and ET/MT groups compared with the control group in the same outcomes, as well as patient perceived improvement at 9 weeks. There was no significant difference between the three groups in analgesic usage, WOMAC stiffness subscale, sit-to-stand and 50âfoot walk tests, QOL and physical activity. There was an overall deterioration in anxiety and depression scores. Conclusions: The addition of MT to an 8 week programme of ET for hip OA resulted in similar improvements in pain, function and ROM at 9 and 18 weeks. The significant improvement which occurred in the same outcomes in the two treatment groups compared with a wait-list control of 8 weeks has implications for waiting list management Disclosure statement: The authors have declared no conflicts of interes
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