Strategic differentiation and integration of genomic-level heritabilities facilitate individual differences in preparedness and plasticity of human life history.

Life history (LH) strategies refer to the pattern of allocations of bioenergetic and material resources into different domains of fitness. While LH is known to have moderate to high population-level heritability in humans, both at the level of the high-order factor (Super-K) and the lower-order factors (K, Covitality, and the General Factor of Personality), several important questions remain unexplored. Here, we apply the Continuous Parameter Estimation Model to measure individual genomic-level heritabilities (termed transmissibilities).

Looking Islam in the Teeth: The Social Life of a Somali Toothbrush.

The Arabic miswak (Somali, adayge) is a tooth-cleaning stick from the Salvadora persica plant. In this article, we trace the social life of a "thing," examining meanings inscribed in the stick brush, drawing on interviews with 82 Somali refugees in Massachusetts and an analysis of local and transnational science and marketing. The miswak toothbrush symbolizes relationships to nature, homeland culture, global Islam, globalizing dental medicine, and the divine as it intersects with the lives of producers, marketers, distributors, and users, creating hybrid cultural forms in new contexts.

Suppression of the GLUT4 adaptive response to exercise in fructose-fed rats.

Exercise-induced increase in skeletal muscle GLUT4 expression is associated with hyperacetylation of histone H3 within a 350-bp DNA region surrounding the myocyte enhancer factor 2 (MEF2) element on the Glut4 promoter and increased binding of MEF2A. Previous studies have hypothesized that the increase in MEF2A binding is a result of improved accessibility of this DNA segment. Here, we investigated the impact of fructose consumption on exercise-induced GLUT4 adaptive response and directly measured the accessibility of the above segment to nucleases.

The role of CaMKII in regulating GLUT4 expression in skeletal muscle.

Contractile activity during physical exercise induces an increase in GLUT4 expression in skeletal muscle, helping to improve glucose transport capacity and insulin sensitivity. An important mechanism by which exercise upregulates GLUT4 is through the activation of Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) in response to elevated levels of cytosolic Ca(2+) during muscle contraction. This review discusses the mechanism by which Ca(2+) activates CaMKII, explains research techniques currently used to alter CaMK activity in cells, and highlights various exercise models and pharmacological agents that have been used to provide evidence that CaMKII plays an important role in regulating GLUT4 expression.

'Even if you're positive, you still have rights because you are a person': human rights and the reproductive choice of HIV-positive persons.

Global debates in approaches to HIV/AIDS control have recently moved away from a uniformly strong human rights-based focus. Public health utilitarianism has become increasingly important in shaping national and international policies. However, potentially contradictory imperatives may require reconciliation of individual reproductive and other human rights with public health objectives.

Maintenance of plasma volume and serum sodium concentration despite body weight loss in ironman triathletes.

Objective: To examine the relationship between body weight, plasma volume, and serum sodium concentration ([Na]) during prolonged endurance exercise.

Design: Observational field study.

Settings: 2000 South African Ironman Triathlon.

The pepsinogen releasing effect of Helicobacter pylori lipopolysaccharide.

Background: Helicobacter pylori lipopolysaccharide (LPS) affects pepsinogen release by a nontoxic mechanism. We hypothesized that this effect was characteristic of the organism and related to the clinical status of the strain.

Materials And Methods: LPS was isolated from 11 H.

Metabolic adaptations to a high-fat diet in endurance cyclists.

We examined the time course of metabolic adaptations to 15 days of a high-fat diet (HFD). Sixteen endurance-trained cyclists were assigned randomly to a control (CON) group, who consumed their habitual diet (30% +/- 8% mJ fat), or a HFD group, who consumed a high-fat isocaloric diet (69% +/- 1% mJ fat). At 5-day intervals, the subjects underwent an oral glucose tolerance test (OGTT); on the next day, they performed a 2.

Irresectable hepatoma treated by intrahepatic iodized oil doxorubicin hydrochloride: initial results.

In this study we describe the investigation and treatment of 14 patients with primary hepatocellular carcinoma. Patients were treated with intra-arterial infusion of iodized oil and doxorubicin hydrochloride. Five of these patients were alive after 1 year.

Injury of myocardial conduction tissue and coronary artery smooth muscle following brain death in the baboon.

Experimental brain death was induced in 36 chacma baboons. In group A (n = 17), brain death was induced with no pharmacologic or surgical manipulation. Group B (n = 7) underwent bilateral vagotomy, unilateral left cardiac sympathectomy, or bilateral adrenalectomy before induction of brain death.

Inhibition by simulated ischemia or hypoxia of delayed afterdepolarizations provoked by cyclic AMP: significance for ischemic and reperfusion arrhythmias.

Controversy exists about the role of an increased level of tissue cyclic adenosine 3'-5' monophosphate (cAMP) in the genesis of early ischemic ventricular arrhythmias. Evidence for an arrhythmogenic role for cAMP was proposed by Podzuweit et al. (1978) and Opie et al.

Functional Analysis of Persuasive Interaction in a Role-Playing Experiment.

One hundred eighty-six male undergraduates were separately confronted by someone (an actor) asking them to sign a petition in a laboratory experiment of multifactorial design. The actor's behavior and the S's response were rated with the use of two four-dimensional schemes, one based on Leary-Bales-Couch interaction process and the other Parsons-Effrat functional ("AGIL") analysis. Positive behavior by the actor and, to some extent, "serious" behavior were reciprocated by S.