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We examined environmental conditions as wet bulb globe temperatures (WBGT). Males and females had similar increases in ΔTin (ME WBGT; p less then 0.0001), and both groups reported increased TS and TC and decreased TP (ME WBGT, p ≤ 0.01). However, females reported that TS, TC, and TP, felt hotter overall, more uncomfortable, and more unpleasant, compared to males (ME Sex; p less then 0.04). Overall, females felt worse and were more stressed compared to males (ME Sex; p ≤ 0.05). Females also reported greater internal focus as WBGT increased compared to males (I WBGT × Sex; p less then 0.003). Knowing that females perceive thermal stress during exercise hyperthermia to be hotter, more uncomfortable, more unpleasant, and more stressful compared to males can help coaches/trainers plan different exercise routines for exercisers of both sexes.Angiotensin II receptor blockers (telmisartan) prevent rodents from diet-induced obesity and improve their metabolic status. Hyperglycemia and obesity are associated with reduced cerebral blood flow and neurovascular uncoupling which may lead to behavioral deficits. We wanted to know whether a treatment with telmisartan prevents these changes in obesity.We put young mice on high-fat diet and simultaneously treated them with telmisartan. At the end of treatment, we performed laser speckle imaging and magnetic resonance imaging to assess the effect on neurovascular coupling and cerebral blood flow. Different behavioral tests were used to investigate cognitive function.Mice developed diet-induced obesity and after 16, not 8 weeks of high-fat diet, however, the response to whisker pad stimulation was about 30% lower in obese compared to lean mice. Simultaneous telmisartan treatment increased the response again by 10% compared to obese mice. Moreover, telmisartan treatment normalized high-fat diet-induced reduction of cerebral blood flow and prevented a diet-induced anxiety-like behavior. In addition to that, telmisartan affects cellular senescence and string vessel formation in obesity.We conclude, that telmisartan protects against neurovascular unit impairments in a diet-induced obesity setting and may play a role in preventing obesity related cognitive deficits in Alzheimer's disease.The extracellular matrix (ECM) is a key interface between the cerebrovasculature and adjacent brain tissues. Deregulation of the ECM contributes to a broad range of neurological disorders. However, despite this importance, our understanding of the ECM composition remains very limited mainly due to difficulties in its isolation. Atamparib clinical trial To address this, we developed an approach to extract the cerebrovascular ECM from mouse and human post-mortem normal brain tissues. We then used mass spectrometry with off-line high-pH reversed-phase fractionation to increase the protein detection. This identified more than 1000 proteins in the ECM-enriched fraction, with > 66% of the proteins being common between the species. We report 147 core ECM proteins of the human brain vascular matrisome, including collagens, laminins, fibronectin and nidogens. We next used network analysis to identify the connection between the brain ECM proteins and cerebrovascular diseases. We found that genes related to cerebrovascular diseases, such as COL4A1, COL4A2, VCAN and APOE were significantly enriched in the cerebrovascular ECM network. This provides unique mechanistic insight into cerebrovascular disease and potential drug targets. Overall, we provide a powerful resource to study the functions of brain ECM and highlight a specific role for brain vascular ECM in cerebral vascular disease.
Ferroptosis is caused by iron-dependent lipid peroxide accumulation, the sensitivity of which might be regulated by acyl-CoA synthetase long chain family member 4 (ACSL4). Non-small-cell lung cancer (NSCLC) can resist oxidative stress and reduce the sensitivity of tumor cells to ferroptosis by changing the expression of some proteins. Mechanisms involving ferroptosis sensitivity in NSCLC are not fully understood.
A dual-luciferase reporter assay was used to confirm a targeting relationship between long non-coding (lnc)RNA NEAT1 and ACSL4. Overexpression and silencing assays of NEAT1 function were used to determine its roles in cell death (by TUNEL staining) and lipid peroxidation (by malondialdehyde levels). Expression of ferroptosis-related proteins (SLCA11, GPX4, and TFR4) was evaluated by western blot in NSCLC cells treated or not with the ferroptosis inducer erastin.
Erastin-induced cell death was positively correlated with ACSL4 level. NEAT1 regulated levels of ACSL4 and proteins related to the ferroptosis and classical apoptosis pathways. Levels of ACSL4, SLC7A11, and GPX4 were decreased more by NEAT1 silencing plus erastin than by erastin alone.
NEAT1 regulates ferroptosis and ferroptosis sensitivity, with the latter depending on ACSL4, suggesting that targeting NEAT1 or ACSL4 may be a viable therapeutic approach to the treatment of NSCLC.
NEAT1 regulates ferroptosis and ferroptosis sensitivity, with the latter depending on ACSL4, suggesting that targeting NEAT1 or ACSL4 may be a viable therapeutic approach to the treatment of NSCLC.
The cognitive and communication challenges experienced by people with intellectual disability present difficulties for health professionals, particularly in the face of illness and dying.
To explore the experiences of specialist palliative care staff in talking with people with intellectual disability about their dying and death, and factors that influence these conversations.
An inductive thematic analysis was conducted on data from a larger qualitative semi-structured interview study.
Twenty palliative care staff from health services across Australia were interviewed. Participants were employed in multidisciplinary specialist palliative care teams and had provided palliative care to dying persons with intellectual disability.
Specialist palliative care staff did not consistently talk with people with intellectual disability about their dying and death. link2 Conversations were influenced by (a) the perceived capacity of the person with intellectual disability, (b) experience and expertise of palliative agenda on the needs of people with intellectual disability and their caregivers in palliative care is needed, with a particular focus on strategies to effectively communicate about dying and death.
Sufentanil-induced cough (SIC) is a common complication during anesthesia induction. link3 We explored the recommended sufentanil dose that effectively avoids cough during general anesthesia using a clinical trial to analyze the effective dose (ED)50 and ED95 of sufentanil that avoids cough, hemodynamic fluctuations, and adverse reactions.
On the basis of sufentanil dose, 136 patients (ASA class I-II) were randomly allocated into the following groups I, 0.1 μg/kg; II, 0.3 μg/kg; III, 0.5 μg/kg; or IV, 1.0 μg/kg. The number of coughing incidents, dizziness, panic, and chest tightness within 1 minute after sufentanil injection, and the patient's heart rate (HR) and blood pressure 5 minutes after intubation were recorded and analyzed. Cough was assessed as follows none, 0 times; mild, 1 to 2 times/minute; moderate, 3 to 4 times/minute; and severe, 5 times/minute or more.
The ED50 and ED95 of cough incidence induced by intravenous sufentanil in patients during general anesthesia induction was 0.332 μg/kg and 1.423 μg/kg, respectively. The cough rate in group I was lower than the other groups. The incidence of dizziness, panic, chest tightness, hypertension, bradycardia, and tachycardia were not significantly different.
The recommended sufentanil dose during general anesthesia induction is 0.1 μg/kg.
The recommended sufentanil dose during general anesthesia induction is 0.1 μg/kg.
The relationships among sleep, circadian rhythm, and intensive care unit (ICU)-acquired delirium are complex and remain unclear. This study aimed to examine the pathophysiological mechanisms of sleep and circadian rhythm disturbances in patients with ICU-acquired delirium.
This study included critical adult patients aged 18 to 75 years who were treated in the ICU. Twenty-four-hour polysomnography was performed and serum melatonin and cortisol levels were measured six times during polysomnography. Receiver operating characteristic curves and binomial logistic regression were used to evaluate the potential of sleep, melatonin, and cortisol as indicators of delirium in the ICU.
Patients with delirium (n = 24) showed less rapid eye movement (REM) sleep compared with patients without delirium (n = 24, controls). Melatonin levels were lower and cortisol levels were higher in the delirium group than in the control group. REM sleep, melatonin, and cortisol were significantly associated with delirium. The optimal cutoff values of REM sleep and mean melatonin and cortisol levels that predicted delirium were ≤1.05%, ≤422.09 pg/mL, and ≥212.14 ng/mL, respectively.
REM sleep, and melatonin and cortisol levels are significantly associated with the risk of ICU-acquired delirium. Improved sleep and readjustment of circadian rhythmicity may be therapeutic targets of ICU-acquired delirium.
REM sleep, and melatonin and cortisol levels are significantly associated with the risk of ICU-acquired delirium. Improved sleep and readjustment of circadian rhythmicity may be therapeutic targets of ICU-acquired delirium.Ectopic spleen is a rare clinical malformation in which the spleen is relocated from its normal anatomical position to other parts of the abdomen. We report a rare case of abdominopelvic ectopic spleen caused by splenic ligament deficiency. A patient experienced intermittent pain in the left upper abdomen that was progressively aggravated. This was confirmed by comprehensive imaging examinations and postoperative pathology. We also performed a review of the literature on the current state of the field. Our data may help to improve the diagnosis and treatment of ectopic spleen.
To identify, quantify, and characterize the presence of spin-specific strategies leading to misrepresentation of study results-in the abstracts of systematic reviews and meta-analyses of Ménière's disease treatment.
Using a cross-sectional design, we searched MEDLINE and Embase on May 28, 2020, for systematic reviews and meta-analyses focused on Ménière's disease treatment. Returned searches were screened, and data were extracted in a masked, duplicate fashion.
Our sample included 36 systematic reviews and meta-analyses. Of the 36 included studies, 22 (61.1%) abstracts contained spin while 14 (38.9%) did not. The most common spin types were selective reporting of benefit (10/36, 27.8%) or harm (8/36, 22.2%). Other types of spin occurred when findings were extrapolated to the global improvement of the disease (5/36, 13.9%), beneficial effects were reported with high risk of bias in primary studies (3/36, 8.3%), and when beneficial effects were extrapolated to an entire class of interventions (1/36, 2.8%)tific research. Spin in an abstract does not discredit a study's findings; however, its occurrence should be eliminated.Primary hepatic mucosa-associated lymphoid tissue (MALT) lymphoma is an extremely rare liver malignancy that usually lacks characteristic imaging findings and which is often misdiagnosed. We report a 63-year-old woman diagnosed with primary hepatic extranodal marginal zone B-cell lymphoma, MALT type. The patient underwent needle biopsy and radiofrequency ablation (RFA), and showed no signs of relapse during the 12-month postoperative follow-up. This case stresses the rarity of primary hepatic MALT-type lymphoma and the unique and effective treatment for this patient. Our patient received RFA, which showed good efficacy and which provides a new option for the treatment of hepatic MALT lymphoma. We also present our findings from a systematic review to improve the current understanding of this disease.
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