[Correspondence between general practitioners and cardiologists: Consensus from a study Delphi]. / Contenu des courriers échangés entre médecins généralistes et cardiologues : consensus d'après une étude Delphi.

AIM OF THE STUDY: To obtain a consensus from a panel of experts (GP and cardiologists) on the elements to appear on the correspondence sent by GP at the patient's first consultation with the cardiologist and on the response of the cardiologist. METHOD: A list of proposals concerning the content of the exchanges between the GP and the cardiologist was established by a scientific council of three GPs and one cardiologist, based on a review of the literature and their practices. This list was submitted for evaluation to a panel of GP and cardiologists experts using the modified RAND/UCLA Delphi method. RESULTS: Twenty nine experts (16 MG and 13 cardiologists) participated in the two evaluation rounds. For the contents of the letter written by the GP, 11 themes have reached consensus: administrative data, reason for consultation, history of the disease, recent constants, current treatments, current or previous pathologies and cardiovascular risk factors, physical activity, psychosocial context, test results, question asked to the cardiologist, cardiologist's perimeter of action. For the contents of the letter of the cardiologist's response, 11 themes were agreed: administrative data, reason for consultation, previous information, clinical examination, ECG, ultrasound, other complementary examinations, answer to the question asked by the GP, dietary treatments, proposed treatments, proposal for follow-up and management. CONCLUSION: This study have reached consensus on the elements to appear on the letters exchanged between the GP and the cardiologist.

[Pedagogic focus-group in pediatrics]. / Initiation à la pédagogie narrative en pédiatrie : le focus-groupe pédagogique.

AIM: To assess a new behavioral teaching technique called "focus group pedagogy" (FGP), which consists in a three-step meeting between sick children's parents and medical students (first with students alone, then with parents and students together, then with students alone). METHODS: This qualitative research ran two sessions (each totaling four to six parents and six students) in which parents were questioned on four main themes: their knowledge of the medical hierarchy, their ability to identify the people in the hospital, their communication with medical staff, and the overall care delivered to their children. A thematic analysis of the verbatim transcript was performed. RESULTS: In the FGP sessions, medical students voiced opinions on their degree of insertion in the medical and paramedical staff, and reported their presence as ambiguous, between care and learning. Parents voiced their experience of their child's hospital stay but also their wider conception of the parent/patient-physician relationship based on their parent-of-patient/parent-as-patient experiences. The meeting of parents and students highlighted divergent narratives on relationships with caregivers, communication, attitudes, knowledge, and competencies. This approach made it possible to hear and learn the point of view "from the other side," which proved beneficial for students, session leaders, and the care unit organization alike. CONCLUSION: FGP is a novel and easy way to discover diverse narratives and the technique is feasible and beneficial in pediatric settings.

Expression of specific white adipose tissue genes in denervation-induced skeletal muscle fatty degeneration.

Denervation of skeletal muscle results in rapid atrophy with loss of contractile mass and/or progressive degeneration of muscle fibers which are replaced to a greater or lesser degree by connective and fatty tissues. In this study, we show that denervated rabbit muscles are transformed into a white adipose tissue, depending on their fiber types. This tissue does express LPL, G3PDH and particularly the ob gene, a white adipose tissue-specific marker, and does not express the brown adipose tissue molecular marker UCP1 mRNA.

In vitro induction of UCP1 mRNA in preadipocytes from rabbit considered as a model of large mammals brown adipose tissue development: importance of PPARgamma agonists for cells isolated in the postnatal period.

UNLABELLED: In mammals with a lower mass-specific metabolic rate than small laboratory rodents, the brown adipose tissue (BAT) loses its thermogenic activity after birth and undergoes a transformation into white adipose tissue (WAT). Rabbit is a model of these mammals of larger body mass. Preadipocytes from cervical BAT of foetal or newborn rabbits differentiated in a chemically-defined medium and expressed low levels of uncoupled protein-1 (UCP1) mRNA, greatly increased by beta3-adrenergic or retinoic acid stimulations. On the contrary, preadipocytes from 1-month-old animals differentiated in the same conditions with no detectable,expression of UCP1. Peroxisome proliferator-activated receptor gamma (PPARgamma) agonists were necessary to induce UCP1 in these cells from older animals, a synergistic increase being noted in the presence of beta3-adrenergic agonists. In contrast to these results, preadipocytes from perirenal WAT stimulated by PPARgamma agonists never expressed UCPI. CONCLUSION: preadipocytes in the postnatal period are determined as brown or white preadipocytes. PPARgamma agonists induce UCP1 expression in brown postnatal preadipocytes, but they are unable to trigger the gene in white preadipocytes.

Expression of c-erbA alpha, c-erbA beta and Rev-erbA alpha mRNA during the conversion of brown adipose tissue into white adipose tissue.

The levels of mRNA encoding uncoupling protein (UCP), thyroid hormone receptors (c-erbA alpha, c-erbA beta) and a related protein Rev-erbA alpha have been studied in brown (pericervical) and white (perirenal) rabbit adipose tissues from birth to 180 days. The c-erbA alpha and c-erbA beta genes are expressed at similar levels in the two tissues. The alpha 1, alpha 2 and beta 1 transcripts do not change notably during development or during the conversion from brown to white phenotype which occurs in pericervical during postnatal life. Rev-erbA alpha mRNA is barely detectable at birth and dramatically increases between 7 and 30 days. However, this increase is not tissue-specific and is also observed in liver and heart. In conclusion, our results show that the decline in UCP expression during the transition from brown to white phenotype cannot be related to changes in the profiles of thyroid hormone receptors or Rev-erbA alpha mRNA expression. These profiles are not different between adipose tissue sites which are brown or white at birth.

Glycerol formation during wine fermentation is mainly linked to Gpd1p and is only partially controlled by the HOG pathway.

Glycerol 3-phosphate dehydrogenase, a key enzyme in the production of glycerol, is encoded by GPD1 and GPD2. The isoforms encoded by these genes have different functions, in osmoregulation and redox balance, respectively. We investigated the roles of GPD1, GPD2 and HOG1-the kinase involved in the response to osmotic stress-in glycerol production during wine fermentation. We found that the deletion of GPD2 in a wine yeast-derived strain did not affect growth or fermentation performance and reduced glycerol production by only 20%. In contrast, a gpd1delta mutant displayed a prolonged lag phase, and produced 40% less glycerol than the wild-type strain. The deletion of HOG1 resulted in a slight decrease in growth rate and a 20% decrease in glycerol production, indicating that the HOG pathway operates under wine fermentation conditions. However, the hog1delta mutant was not as severely affected as the gpd1delta mutant during the first few hours of fermentation, and continued to express GPD1 strongly. The hog1delta mutant was able to increase glycerol production in response to high sugar concentration (15-28% glucose), to almost the same extent as the wild-type, whereas this response was totally abolished in the gpd1delta mutant. These data show that Gpd1p plays a major role in glycerol formation, particularly during the first few hours of exposure to high sugar concentration, and that GPD2 is only of little significance in anaerobic fermentation by wine yeast. The results also demonstrate that the HOG pathway exerts only limited control over GPD1 expression and glycerol production during wine fermentation.