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81.
Lopes GS Smaili SS Neto AC Vladimirova I Jurkiewicz A Jurkiewicz NH 《The journals of gerontology. Series A, Biological sciences and medical sciences》2007,62(3):264-270
The role of aging on contraction or relaxation through muscarinic or alpha-adrenergic receptors, respectively, was studied in isolated rat jejunum. Furthermore, the influence of extracellular calcium was analyzed, through functional and radioligand binding assays. The rank order of potency for selective muscarinic antagonists for M(1), M(2), and M(3) receptor subtypes, measured from affinity (pA(2)) values, was p-fluorohexahydrosiladifenidol (pFHHSiD) (M(3)) > pirenzepine (M(1)) > methoctramine (M(2)), indicating a predominance of M(3) subtype. This order was unchanged with age. Contractions by muscarinic agonist methacholine (MCh) were diminished in aged rats, resulting in lower apparent affinity (pD(2)) values, compared with adult controls. A larger decrease of MCh contractions occurred in aged rats after Ca(2+) withdrawal or after the calcium channel blocker isradipine. Changes were not detected for relaxation by adrenergic agonists. In conclusion, aging caused a decrease of MCh potency, which is probably related to the reduction of calcium sensitivity in jejunum. 相似文献
82.
Margolskee RF Dyer J Kokrashvili Z Salmon KS Ilegems E Daly K Maillet EL Ninomiya Y Mosinger B Shirazi-Beechey SP 《Proceedings of the National Academy of Sciences of the United States of America》2007,104(38):15075-15080
Dietary sugars are transported from the intestinal lumen into absorptive enterocytes by the sodium-dependent glucose transporter isoform 1 (SGLT1). Regulation of this protein is important for the provision of glucose to the body and avoidance of intestinal malabsorption. Although expression of SGLT1 is regulated by luminal monosaccharides, the luminal glucose sensor mediating this process was unknown. Here, we show that the sweet taste receptor subunit T1R3 and the taste G protein gustducin, expressed in enteroendocrine cells, underlie intestinal sugar sensing and regulation of SGLT1 mRNA and protein. Dietary sugar and artificial sweeteners increased SGLT1 mRNA and protein expression, and glucose absorptive capacity in wild-type mice, but not in knockout mice lacking T1R3 or alpha-gustducin. Artificial sweeteners, acting on sweet taste receptors expressed on enteroendocrine GLUTag cells, stimulated secretion of gut hormones implicated in SGLT1 up-regulation. Gut-expressed taste signaling elements involved in regulating SGLT1 expression could provide novel therapeutic targets for modulating the gut's capacity to absorb sugars, with implications for the prevention and/or treatment of malabsorption syndromes and diet-related disorders including diabetes and obesity. 相似文献
83.
Hafid Ait-Oufella Soraya Taleb Ziad Mallat Alain Tedgui 《Seminars in immunopathology》2009,31(1):23-33
Atherosclerosis is a chronic inflammatory disease of the arterial wall where both innate and adaptive immune responses contribute
to disease initiation and progression. Recent studies established that subtypes of T cells, regulatory T cells (Tregs), actively
involved in the maintenance of immunological tolerance, inhibit the development and progression of atherosclerosis. Here,
we review the current knowledge on the Treg response and the major cytokines involved in its modulation in the context of
atherosclerosis. 相似文献
84.
Carey PD Walker JL Rossouw W Seedat S Stein DJ 《European child & adolescent psychiatry》2008,17(2):93-98
PURPOSE: Childhood sexual abuse (CSA) is widespread amongst South African (SA) children, yet data on risk factors and psychiatric consequences are limited and mixed. METHODS: Traumatised children and adolescents referred to our Youth Stress Clinic were interviewed to obtain demographic, sexual abuse, lifetime trauma and psychiatric histories. RESULTS: Data for 94 participants (59 female, 35 male; mean age 14.25 [8.25-19] years) exposed to at least one lifetime trauma were analysed. Sexual abuse was reported in 53% of participants (42.56% females, 10.63% males) with 64% of violations committed by perpetrators known to them. Multinomial logistic regression analysis revealed female gender (P=0.002) and single-parent families (P=0.01) to be significant predictors of CSA (62.5%). CSA did not predict exposure to other traumas. Sexually abused children had significantly higher physical and emotional abuse subscale scores and total CTQ scores than non-abused children. Depression (33%, X(2)=10.89, P=0.001) and PTSD (63.8%, X(2)=4.79, P=0.034) were the most prevalent psychological consequences of trauma and both were significantly associated with CSA. CONCLUSIONS: High rates of CSA predicted high rates of PTSD in this traumatised sample. Associations we found appear consistent with international studies of CSA and, should be used to focus future social awareness, prevention and treatment strategies in developing countries. 相似文献
85.
Clinical and demographic features of minor salivary gland tumors: A collaborative study of 480 cases
86.
Mehdi Kahouei Mohsen Soleimani Majid Mirmohammadkhani Soraya Namjoo Doghozlou Zahra Valizadeh 《Health Policy and Technology》2021,10(3):100524
ObjectivesEffective communication is essential in home health care nursing in order to meet the needs of both the patients and the caregivers. Given the key role of nursing staff inpatient training through the patient portal; nursing staffs' attitudes toward the use of this technology thus need to be further evaluated. The present study evaluated Iranian nurses' attitudes before the web-based patient portal implementation in home health care nursing.MethodsThis study was conducted on 600 nursing staff working in health care organizations affiliated to Semnan University of Medical Sciences in Iran. A questionnaire was used to evaluate the nurses’ attitudes.ResultsThe study subjects' attitudes scores were 3.06±0.71 on "patient education", 3.02±0.78 on "health care plan" and 2.95±0.82 on the cost of nursing services, based on the 5-point Likert scale (1-5: completely disagree to completely agree). There was a statistically significant relationship between nurses' attitudes and computer skill (B=0.07, SE=0.03, P=0.021) and nurses' acceptance of IT (B=0.085, SE=0.039, P=0.030), and sex (B=0.176, SE=0.058, P=0.003).ConclusionThe nurses agreed that the use of this self-management tool can ease patient education, easily implement a health care plan for patients and reduce the cost of nursing services. The nurses also agreed that changes are required at the minor and major levels of in-home health care institutions to support the implementation and meaningful use of this portal for home health care nursing.Public interest (lay) summaryHome health care is one of the alternative solutions to continue hospital care that is performed by nursing staff. The nursing staff in-home care should effectually cooperate to render secure and high-quality patient care. The web-based patient portals have confirmed effectiveness to improve patient gratification, engagement, and health outcomes, improve the quality and efficacy of the healthcare settings, decrease emergency unit appointments and ease patient-centered care. Nurses agree the implementation of the patient portal in home health care nursing depends on organizational and individual preparation in healthcare organizations and this technology should be also adopted by the nursing staff to meaningful use of the patient portal to attain significant improvements in home health care nursing. 相似文献
87.
Soraya Fenniche Sonia Maalej Hela Hassene Saoussen Hantous Dalenda Belhabib Sonia Bakkari Faouzi el Mezni Habiba Horchani Lamine Megdiche Mohamed 《La Tunisie médicale》2003,81(1):59-62
Thymolipoma is a rare thymic tumor; His frequency is estimated at 2 at 9% of all thymic tumors. His diagnosis usually easy, can be difficult with an unusual radio clinic pattern, but actually get benefice from progress in radiologic investigations especially MRI. We reported a case of a 36-year old woman, admitted for a left pleuro-pneumopathy investigation. Evolution, after antibiotic treatment and pleural effusion draining, was well. However, patient developed systolic aortic murmur and a chest-X-ray cardiomegaly supposing cardiologic dysfunction. But the normality of cardiac sonography, the ascension of diaphragma and non-specific thoracic sonographic pattern, guided to thoracic MRI. This exploration demonstrated a giant thymolipoma, which was confirmed by the histologic examination of a resected mass. 相似文献
88.
89.
Assunção AA Belisário SA Campos FE D'Avila LS 《Cadernos de saúde pública / Ministério da Saúde, Funda??o Oswaldo Cruz, Escola Nacional de Saúde Pública》2007,23(Z2):S193-S201
This article discusses several key concepts for human resources policy in health in the context of Latin America's regional integration efforts. The article focuses on different concepts of integration to emphasize the analytical distinction between regional and conceptual integration. It also presents labor and human resources concepts before discussing, in the final analysis, the challenges that a common research agenda faces in the context of current health sector reforms in Latin America. The conclusion emphasizes the need to develop a technology and research system capable of supporting the agenda for exchange between MERCOSUR member countries. 相似文献
90.
Cristina Pérez Julia González-Rincón Arantza Onaindia Carmen Almaráz Nuria García-Díaz Helena Pisonero Soraya Curiel-Olmo Sagrario Gómez Laura Cereceda Rebeca Madureira Mercedes Hospital Dolores Suárez-Massa José L. Rodriguez-Peralto Concepción Postigo Alicia Leon-Castillo Carmen González-Vela Nerea Martinez Pablo Ortiz-Romero Margarita Sánchez-Beato Miguel á. Piris José P. Vaqué 《Haematologica》2015,100(11):e450-e453