127 research outputs found
"It is never good. Really, it’s just never good": A dominant theme in the life story accounts of strictly Reformed-raised emerging adults about their religious identity development.
This article presents a striking finding of our research into the religious identity commitments and process of religious identity development of emerging adults who grew up in strictly Reformed contexts in the Netherlands. We observed a recurrent theme in the life story accounts we studied. Almost all the participants expressed that they feel or felt not good enough for God or believers within strictly Reformed contexts. In this article, we explore this theme and show how feelings of not being good enough are related to various aspects of participants’ strictly Reformed upbringing, such as specific beliefs and specific ideal images. In addition, we show which experiences go along with feelings of not being good enough. Last, we discuss the findings, provide suggestions for future research and point to directions for further reflections by educators
Характеристика структурних змін в яєчку при хронічній гіпертермії
Воздействие хронической гипертермии на яички экспериментальных животных
приводит к изменению микроциркуляторного русла в виде венозного полнокровия
и интерстициального отека. Появляются морфологические признаки замедления
процессов сперматогенеза, которые сопровождаются изменениями структур
извитых семенных канальцев.Laboratory animal testes influenced by chronic hyperthermia show changes in
hemomicrocirculation bed structure manifested as venous hyperemia and interstitial
edema. Morphological signs of spermatogenesis slowdown accompanied by changes in
convoluted somniferous tubules are observed
Thinking fast or slow? Functional magnetic resonance imaging reveals stronger connectivity when experienced neurologists diagnose ambiguous cases:Functional magnetic resonance imaging reveals stronger connectivity when experienced neurologists diagnose ambiguous cases
For almost 40 years, thinking about reasoning has been dominated by dual process theories. This model, consisting of two distinct types of human reasoning, one fast and effortless, the other slow and deliberate, has also been applied to medical diagnosis. Medical experts are trained to diagnose patients based on their symptoms. When symptoms are prototypical for a certain diagnosis, practitioners may rely on fast, recognition-based reasoning. However, if they are confronted with ambiguous clinical information slower, analytical reasoning is required. To examine the neural underpinnings of these two hypothesized forms of reasoning, sixteen highly experienced clinical neurologists were asked to diagnose two types of medical cases, straightforward and ambiguous cases, while functional magnetic resonance imaging was being recorded. Compared to reading control sentences, diagnosing cases resulted in increased activation in brain areas typically found to be active during reasoning such as the caudate nucleus, and frontal and parietal cortical regions. In addition, we found vast increased activity in the cerebellum. Regarding the activation differences between the two types of reasoning, no pronounced differences were observed in terms of regional activation. Notable differences were observed, though, in functional connectivity: cases containing ambiguous information showed stronger connectivity between specific regions in the frontal, parietal, and temporal cortex in addition to the cerebellum. Based on these results we propose that the higher demands in terms of controlled cognitive processing during analytical medical reasoning may be subserved by stronger communication between key regions for detecting and resolving uncertainty.<br/
High-affinity prorenin binding to cardiac man-6-P/IGF-II receptors precedes proteolytic activation to renin
Mannose-6-phosphate (man-6-P)/insulin-like growth factor-II
(man-6-P/IgF-II) receptors are involved in the activation of recombinant
human prorenin by cardiomyocytes. To investigate the kinetics of this
process, the nature of activation, the existence of other prorenin
receptors, and binding of native prorenin, neonatal rat cardiomyocytes
were incubated with recombinant, renal, or amniotic fluid prorenin with or
without man-6-P. Intact and activated prorenin were measured in cell
lysates with prosegment- and renin-specific antibodies, respectively. The
dissociation constant (K(d)) and maximum number of binding sites (B(max))
for prorenin binding to man-6-P/IGF-II receptors were 0.6 +/- 0.1 nM and
3,840 +/- 510 receptors/myocyte, respectively. The capacity for prorenin
internalization was greater than 10 times B(max). Levels of internalized
intact prorenin decreased rapidly (half-life = 5 +/- 3 min) indicating
proteolytic prosegment removal. Prorenin subdivision into man-6-P-free and
man-6-P-containing fractions revealed that only the latter was bound.
Cells also bound and activated renal but not amniotic fluid prorenin. We
concluded that cardiomyocytes display high-affinity binding of renal but
not extrarenal prorenin exclusively via man-6-P/IGF-II receptors. Binding
precedes internalization and proteolytic activation to renin thereby
supporting the concept of cardiac angiotensin formation by renal prorenin
Flow cytometric assessment of leukocyte kinetics for the monitoring of tissue damage
Leukocyte populations quickly respond to tissue damage, but most leukocyte kinetic studies are not based on multiparameter flow cytometry. We systematically investigated several blood leukocyte populations after controlled tissue damage. 48 patients were assigned to either an anterior or posterolateral total hip arthroplasty. Peripheral blood was collected pre-operatively and at 2 h, 24 h, 48 h, 2 and 6 weeks postoperatively and assessed by flow cytometry for absolute counts of multiple leukocyte populations using standardized EuroFlow protocols. Absolute counts of leukocyte subsets differed significantly between consecutive time points. Neutrophils increased instantly after surgery, while most leukocyte subsets initially decreased, followed by increasing cell counts until 48 h. At two weeks all leukocyte counts were restored to pre-operative counts. Immune cell kinetics upon acute tissue damage exhibit reproducible patterns, which differ between the leukocyte subsets and with “opposite kinetics” among monocyte subsets. Flow cytometric leukocyte monitoring can be used to minimally invasively monitor tissue damage.This was supported by Stichting Anna Fonds/NOREF (Dutch Orthopedic Research and Education Fund) and the Erasmus MC Medical research grant (grant no. DRP337224)
Intraductal cisplatin treatment in a BRCA-associated breast cancer mouse model attenuates tumor development but leads to systemic tumors in aged female mice
BRCA deficiency predisposes to the development of invasive breast cancer. In BRCA mutation carriers this risk can increase up to 80%. Currently, bilateral prophylactic mastectomy and prophylactic bilateral salpingo-oophorectomy are the only preventive, albeit radical invasive strategies to prevent breast cancer in BRCA mutation carriers. An alternative non-invasive way to prevent BRCA1-associated breast cancer may be local prophylactic treatment via the nipple. Using a non-invasive intraductal (ID) preclinical intervention strategy, we explored the use of combined cisplatin and poly (ADP)-ribose polymerase 1 (PARP1) inhibition to prevent the development of hereditary breast cancer. We show that ID cisplatin and PARP-inhibition can successfully ablate mammary epithelial cells, and this approach attenuated tumor onset in a mouse model of Brca1-associated breast cancer from 153 to 239 days. Long-term carcinogenicity studies in 150 syngeneic wild-type mice demonstrated that tumor incidence was increased in the ID treated mammary glands by 6.3% due to systemic exposure to cisplatin. Although this was only evident in aged mice (median age = 649 days), we conclude that ID cisplatin treatment only presents a safe and feasible local prevention option if systemic exposure to the chemotherapy used can be avoided
Male-Female Differences in Acute Type B Aortic Dissection
BACKGROUND: Acute type B aortic dissection is a cardiovascular emergency with considerable mortality and morbidity risk. Male-female differences have been observed in cardiovascular disease; however, literature on type B aortic dissection is scarce. METHODS AND RESULTS: A retrospective cohort study was conducted including all consecutive patients with acute type B aortic dissection between 2007 and 2017 in 4 tertiary hospitals using patient files and questionnaires for late morbidity. In total, 384 patients were included with a follow-up of 6.1 (range, 0.02-14.8) years, of which 41% (n=156) were female. Women presented at an older age than men (67 [interquartile range (IQR), 57-73] versus 62 [IQR, 52-71]; P=0.015). Prior abdominal aortic aneurysm (6% versus 15%; P=0.009), distally extending dissections (71 versus 85%; P=0.001), and clinical malperfusion (18% versus 32%; P=0.002) were less frequently observed in women. Absolute maximal descending aortic diameters were smaller in women (36 [IQR: 33-40] mm versus 39 [IQR, 36-43] mm; P<0.001), while indexed for body surface area diameters were larger in women (20 [IQR, 18-23] mm/m2 versus 19 [IQR, 17-21] mm/m2). No male-female differences were found in treatment choice; however, indications for invasive treatment were different (P<0.001). Early mortality rate was 9.6% in women and 11.8% in men (P=0.60). The 5-year survival was 83% (95% CI, 77-89) for women and 84% (95% CI, 79-89) for men (P=0.90). No male-female differences were observed in late (re)interventions. CONCLUSIONS: No male-female differences were found in management, early or late death, and morbidity in patients presenting with acute type B aortic dissection, despite distinct clinical profiles at presentation. More details on the impact of age and type of intervention are warranted in future studies.</p
Male-Female Differences in Acute Type B Aortic Dissection
BACKGROUND: Acute type B aortic dissection is a cardiovascular emergency with considerable mortality and morbidity risk. Male-female differences have been observed in cardiovascular disease; however, literature on type B aortic dissection is scarce. METHODS AND RESULTS: A retrospective cohort study was conducted including all consecutive patients with acute type B aortic dissection between 2007 and 2017 in 4 tertiary hospitals using patient files and questionnaires for late morbidity. In total, 384 patients were included with a follow-up of 6.1 (range, 0.02-14.8) years, of which 41% (n=156) were female. Women presented at an older age than men (67 [interquartile range (IQR), 57-73] versus 62 [IQR, 52-71]; P=0.015). Prior abdominal aortic aneurysm (6% versus 15%; P=0.009), distally extending dissections (71 versus 85%; P=0.001), and clinical malperfusion (18% versus 32%; P=0.002) were less frequently observed in women. Absolute maximal descending aortic diameters were smaller in women (36 [IQR: 33-40] mm versus 39 [IQR, 36-43] mm; P<0.001), while indexed for body surface area diameters were larger in women (20 [IQR, 18-23] mm/m2 versus 19 [IQR, 17-21] mm/m2). No male-female differences were found in treatment choice; however, indications for invasive treatment were different (P<0.001). Early mortality rate was 9.6% in women and 11.8% in men (P=0.60). The 5-year survival was 83% (95% CI, 77-89) for women and 84% (95% CI, 79-89) for men (P=0.90). No male-female differences were observed in late (re)interventions. CONCLUSIONS: No male-female differences were found in management, early or late death, and morbidity in patients presenting with acute type B aortic dissection, despite distinct clinical profiles at presentation. More details on the impact of age and type of intervention are warranted in future studies.</p
Long Term Health Related Quality of Life After Acute Type B Aortic Dissection:a Cross Sectional Survey Study
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