The effect of long term combined yoga practice on the basal metabolic rate of healthy adults

BACKGROUND: Different procedures practiced in yoga have stimulatory or inhibitory effects on the basal metabolic rate when studied acutely. In daily life however, these procedures are usually practiced in combination. The purpose of the present study was to investigate the net change in the basal metabolic rate (BMR) of individuals actively engaging in a combination of yoga practices (asana or yogic postures, meditation and pranayama or breathing exercises) for a minimum period of six months, at a residential yoga education and research center at Bangalore. METHODS: The measured BMR of individuals practicing yoga through a combination of practices was compared with that of control subjects who did not practice yoga but led similar lifestyles. RESULTS: The BMR of the yoga practitioners was significantly lower than that of the non-yoga group, and was lower by about 13 % when adjusted for body weight (P < 0.001). This difference persisted when the groups were stratified by gender; however, the difference in BMR adjusted for body weight was greater in women than men (about 8 and 18% respectively). In addition, the mean BMR of the yoga group was significantly lower than their predicted values, while the mean BMR of non-yoga group was comparable with their predicted values derived from 1985 WHO/FAO/UNU predictive equations. CONCLUSION: This study shows that there is a significantly reduced BMR, probably linked to reduced arousal, with the long term practice of yoga using a combination of stimulatory and inhibitory yogic practices

Comparative Genomic Analysis of Human Fungal Pathogens Causing Paracoccidioidomycosis

Paracoccidioides is a fungal pathogen and the cause of paracoccidioidomycosis, a health-threatening human systemic mycosis endemic to Latin America. Infection by Paracoccidioides, a dimorphic fungus in the order Onygenales, is coupled with a thermally regulated transition from a soil-dwelling filamentous form to a yeast-like pathogenic form. To better understand the genetic basis of growth and pathogenicity in Paracoccidioides, we sequenced the genomes of two strains of Paracoccidioides brasiliensis (Pb03 and Pb18) and one strain of Paracoccidioides lutzii (Pb01). These genomes range in size from 29.1 Mb to 32.9 Mb and encode 7,610 to 8,130 genes. To enable genetic studies, we mapped 94% of the P. brasiliensis Pb18 assembly onto five chromosomes. We characterized gene family content across Onygenales and related fungi, and within Paracoccidioides we found expansions of the fungal-specific kinase family FunK1. Additionally, the Onygenales have lost many genes involved in carbohydrate metabolism and fewer genes involved in protein metabolism, resulting in a higher ratio of proteases to carbohydrate active enzymes in the Onygenales than their relatives. To determine if gene content correlated with growth on different substrates, we screened the non-pathogenic onygenale Uncinocarpus reesii, which has orthologs for 91% of Paracoccidioides metabolic genes, for growth on 190 carbon sources. U. reesii showed growth on a limited range of carbohydrates, primarily basic plant sugars and cell wall components; this suggests that Onygenales, including dimorphic fungi, can degrade cellulosic plant material in the soil. In addition, U. reesii grew on gelatin and a wide range of dipeptides and amino acids, indicating a preference for proteinaceous growth substrates over carbohydrates, which may enable these fungi to also degrade animal biomass. These capabilities for degrading plant and animal substrates suggest a duality in lifestyle that could enable pathogenic species of Onygenales to transfer from soil to animal hosts.National Institute of Allergy and Infectious Diseases (U.S.)National Institutes of Health. Department of Health and Human Services (contract HHSN266200400001C)National Institutes of Health. Department of Health and Human Services(contract HHSN2722009000018C)Brazil. National Council for Scientific and Technological Developmen

Nurses' experiences, expectations, and preferences for mind-body practices to reduce stress

BACKGROUND: Most research on the impact of mind-body training does not ask about participants\u27 baseline experience, expectations, or preferences for training. To better plan participant-centered mind-body intervention trials for nurses to reduce occupational stress, such descriptive information would be valuable. METHODS: We conducted an anonymous email survey between April and June, 2010 of North American nurses interested in mind-body training to reduce stress. The e-survey included: demographic characteristics, health conditions and stress levels; experiences with mind-body practices; expected health benefits; training preferences; and willingness to participate in future randomized controlled trials. RESULTS: Of the 342 respondents, 96% were women and 92% were Caucasian. Most (73%) reported one or more health conditions, notably anxiety (49%); back pain (41%); GI problems such as irritable bowel syndrome (34%); or depression (33%). Their median occupational stress level was 4 (0 = none; 5 = extreme stress). Nearly all (99%) reported already using one or more mind-body practices to reduce stress: intercessory prayer (86%), breath-focused meditation (49%), healing or therapeutic touch (39%), yoga/tai chi/qi gong (34%), or mindfulness-based meditation (18%). The greatest expected benefits were for greater spiritual well-being (56%); serenity, calm, or inner peace (54%); better mood (51%); more compassion (50%); or better sleep (42%). Most (65%) wanted additional training; convenience (74% essential or very important), was more important than the program\u27s reputation (49%) or scientific evidence about effectiveness (32%) in program selection. Most (65%) were willing to participate in a randomized trial of mind-body training; among these, most were willing to collect salivary cortisol (60%), or serum biomarkers (53%) to assess the impact of training. CONCLUSIONS: Most nurses interested in mind-body training already engage in such practices. They have greater expectations about spiritual and emotional than physical benefits, but are willing to participate in studies and to collect biomarker data. Recruitment may depend more on convenience than a program\u27s scientific basis or reputation. Knowledge of participants\u27 baseline experiences, expectations, and preferences helps inform future training and research on mind-body approaches to reduce stress

Integrated sensory motor system in prematurely born children

Objetivo: Investigar a existência de sistema sensório motor integrado em recém-nascidos (RNs) prematuros submetidos à estimulação gustativa. Métodos: Estudo experimental analítico e duplo-cego. Participaram 90 RNs prematuros, divididos em dois grupos (água e sacarose para análise (PA) 12%), filmados durante 15 minutos (primeiro e último momentos, sem estimulação; e segundo momento com estimulação gustativa). Três juízes independentes analisaram os comportamentos mão na boca direita e esquerda e sucção da mão direita e esquerda durante os diversos estados comportamentais, inseridos no banco de dados do Statistical Package for Social Science, sendo considerados em concordância os eventos observados por pelo menos dois deles. Empregou-se teste de correlação de Spearman com nível de significância valor de p<0,05. Resultados: Tanto ao serem considerados os grupos separadamente quanto juntos, mão na boca direita e esquerda tiveram inicialmente correlação moderada, sendo que mão na boca direita manteve-se forte no final e mão na boca esquerda finalizou com correlação moderada e forte, de acordo com cada estado comportamental. Sucção de mão direita na totalidade e em sacarose apresentou-se inicialmente com correlação forte no estado sonolento, passando para moderada ao final. No estado alerta houve inicialmente correlação fraca em ambos os estímulos, finalizando com correlação moderada em sacarose e forte em água. Sucção de mão esquerda apresentou-se inicialmente correlação moderada em alerta, finalizando com correlação fraca no grupo sacarose, o que não ocorreu na água, que iniciou e finalizou forte. Conclusão: A estimulação oral influenciou na coordenação mão-boca, independente do estímulo, evidenciando integração sensório motora precoce, mas não inferindo sobre capacidade de discriminação gustativa nos prematuros. _________________________________________________________________________________________ ABSTRACT: Purpose: To investigate about an integrated sensory motor system existence in premature newborns, submitted to gustatory stimulation. Methods: Analytical and experimental study of contents, double-blind. Being participants 90 premature newborns, divided into two groups (water or sucrose analysis 12%). Recorded by 15 minutes (first and last moments, without stimulation; and second time with gustatory stimulation). Three independent judges analyzed the behaviors in the right hand and left hand in the mouth and suction in the left and right and hand during the various behavioral states, those being inserted in the database of Statistical Package for Social Science, being then considered that the events observed by at least two of them. It was made use of Spearman’s rank correlation test on a significance level by p<0.05. Results: Considering the groups both separately and together, right and left had initially moderate correlation, being right hand in the mouth remained strong at the end and left hand in the mouth finished on moderate and strong correlation, according to each behavioral state. Right hand suction in its total and sucrose showed a strong correlation initially in drowsy state, becoming moderate at the end. In alertness state there was initially a weak correlation in both stimuli ending in moderate correlation in sucrose and strong in water. Left hand suction presented initially moderate correlation on the alert state, ending in weak correlation in sucrose stimuli, which did not occur in the water that started and finished strong. Conclusion: The oral stimulation influenced the hand-mouth coordination, showing early motor sensory integration. However, there was no discrimination about the gustatory capacity on the newborns

Spinning Gland Transcriptomics from Two Main Clades of Spiders (Order: Araneae) - Insights on Their Molecular, Anatomical and Behavioral Evolution

Characterized by distinctive evolutionary adaptations, spiders provide a comprehensive system for evolutionary and developmental studies of anatomical organs, including silk and venom production. Here we performed cDNA sequencing using massively parallel sequencers (454 GS-FLX Titanium) to generate ∼80,000 reads from the spinning gland of Actinopus spp. (infraorder: Mygalomorphae) and Gasteracantha cancriformis (infraorder: Araneomorphae, Orbiculariae clade). Actinopus spp. retains primitive characteristics on web usage and presents a single undifferentiated spinning gland while the orbiculariae spiders have seven differentiated spinning glands and complex patterns of web usage. MIRA, Celera Assembler and CAP3 software were used to cluster NGS reads for each spider. CAP3 unigenes passed through a pipeline for automatic annotation, classification by biological function, and comparative transcriptomics. Genes related to spider silks were manually curated and analyzed. Although a single spidroin gene family was found in Actinopus spp., a vast repertoire of specialized spider silk proteins was encountered in orbiculariae. Astacin-like metalloproteases (meprin subfamily) were shown to be some of the most sampled unigenes and duplicated gene families in G. cancriformis since its evolutionary split from mygalomorphs. Our results confirm that the evolution of the molecular repertoire of silk proteins was accompanied by the (i) anatomical differentiation of spinning glands and (ii) behavioral complexification in the web usage. Finally, a phylogenetic tree was constructed to cluster most of the known spidroins in gene clades. This is the first large-scale, multi-organism transcriptome for spider spinning glands and a first step into a broad understanding of spider web systems biology and evolution