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Ratio of carbon dioxide uptake vs oxygen uptake at tissue level(Respiratory extraction ratio) for predicting post-operative complication in old age patients posted for gastro-intestinal cancer surgery.

ABSTRACT: Primary outcome(s): Ability of RER at the end of surgery to detect post-operative complicationsTimepoint: 7 days post-operative period

DISEASE(S): Disorders Of Gallbladder, Biliarytract And Pancreas In Diseases Classified Elsewhere,Malignant Neoplasm Of Intestinal Tract, Part Unspecified

PROVIDER: 2713608 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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RNA-sequencing reveals a gene expression signature in skeletal muscle of a mouse model of age-associated post-operative functional decline

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2021-09-22 | GSE184486 | GEO

Mucosal gene expression profiling in ileum of patients with Crohn's disease

Project description:In this study, we investigated gene expression profiles in ileal mucosa from CD patients in different settings (post-operative CD (Rutgeerts score i0); post-operative recurrent CD (i1), post-operative recurrent CD (≥i2b), newly diagnosed CD and late stage CD)) and controls.

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Significance of blood cell counts ratio that is NLR (Neutrophil-to-Lymphocyte Ratio) and PLR (Platelet-to-Lymphocyte Ratio) in predicting Post-operative readmissions, ICU stay and reinterventions and correlate to stage of the disease in final reports in cases of Gastro-intestinal cancers.

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RNA-sequencing in skeletal muscle from a mouse model of laparotomy with pre-operative running wheel exercise

Project description:This study aimed to characterize the effects of pre-operative volitional running wheel exercise on post-operative physical function and skeletal muscle gene expression in 24-month-old C57BL/6N mice following laparotomy. Soleus muscles collected on post-operative day 5 (POD 5) were used for this study.

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A persistently low level of atmospheric oxygen in Earth's middle age.

Project description:Resolving how Earth surface redox conditions evolved through the Proterozoic Eon is fundamental to understanding how biogeochemical cycles have changed through time. The redox sensitivity of cerium relative to other rare earth elements and its uptake in carbonate minerals make the Ce anomaly (Ce/Ce*) a particularly useful proxy for capturing redox conditions in the local marine environment. Here, we report Ce/Ce* data in marine carbonate rocks through 3.5 billion years of Earth's history, focusing in particular on the mid-Proterozoic Eon (i.e., 1.8 - 0.8 Ga). To better understand the role of atmospheric oxygenation, we use Ce/Ce* data to estimate the partial pressure of atmospheric oxygen (pO2) through this time. Our thermodynamics-based modeling supports a major rise in atmospheric oxygen level in the aftermath of the Great Oxidation Event (~ 2.4 Ga), followed by invariant pO2 of about 1% of present atmospheric level through most of the Proterozoic Eon (2.4 to 0.65 Ga).

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Changes in carbon dioxide production and oxygen uptake evaluated using indirect calorimetry in mechanically ventilated patients with sepsis.

Project description:BackgroundSeveral clinical guidelines recommend monitoring blood lactate levels and central venous oxygen saturation for hemodynamic management of patients with sepsis. We hypothesized that carbon dioxide production (VCO2) and oxygen extraction (VO2) evaluated using indirect calorimetry (IC) might provide additional information to understand the dynamic metabolic changes in sepsis.MethodsAdult patients with sepsis who required mechanical ventilation in the intensive care unit (ICU) of our hospital between September 2019 and March 2020 were prospectively enrolled. Sepsis was diagnosed according to Sepsis-3. Continuous measurement of VCO2 and VO2 using IC for 2 h was conducted within 24 h after tracheal intubation, and the changes in VCO2 and VO2 over 2 h were calculated as the slopes by linear regression analysis. Furthermore, temporal lactate changes were evaluated. The primary outcome was 28-day survival.ResultsThirty-four patients with sepsis were enrolled, 26 of whom survived 76%. Significant differences in the slope of VCO2 (- 1.412 vs. - 0.446) (p = 0.012) and VO2 (- 2.098 vs. - 0.851) (p = 0.023) changes were observed between non-survivors and survivors. Of note, all eight non-survivors and 17 of the 26 survivors showed negative slopes of VCO2 and VO2 changes. For these patients, 17 survivors had a median lactate of - 2.4% changes per hour (%/h), whereas non-survivors had a median lactate of 2.6%/hr (p = 0.023).ConclusionsThe non-survivors in this study showed temporal decreases in both VCO2 and VO2 along with lactate elevation. Monitoring the temporal changes in VCO2 and VO2 along with blood lactate levels may be useful in predicting the prognosis of sepsis.

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Project description:To improve post-operative recovery, medical device was developed combining low-pressure pneumoperitoneum and heated and humidified Carbon Dioxide (95˚F & 95% RH) during laparoscopic surgery to reduce the harmful effects of cold/dry insufflation. A double-blind, prospective, randomized, controlled, monocentric trial is designed in the aim to assess the impact of low-pressure pneumoperitoneum with warm and humidified gaz on post-operative pain at 24 hours without taking opioids. It is compared with low-pressure laparoscopy with cold and dry gaz in patients undergoing colorectal surgeries.

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Identification of a novel biomarker serum miRNA from the patients with colorectal cancer (CRC).

Project description:Serum microRNAs (miRNAs) have been shown to have a potential for cancer diagnosis lately. The main objective of this study is to identify a novel biomarker serum miRNA from the patients with colorectal cancer (CRC). Microarray analysis of miRNA expression was performed using paired pre- and post- operative serum from 10 CRC patients. Two miRNAs (let-7a, miR-199a-3p) decreased significantly in the post-operative serum when compared to pre-operative serum (P=0.015 and 0.029, respectively). Microarrays were performed for paired pre- and post- operative serum from 10 CRC patients.

2014-10-02 | E-GEOD-55139 | biostudies-arrayexpress

Glycosylated hemoglobin level, race/ethnicity, and cognition in midlife and early old age.

Project description:Empirical evidence linking racial/ethnic differences in glycosylated hemoglobin levels (HbA1c) to cognitive function in midlife and early old age is limited. We use biomarker data from the Health and Retirement Study (HRS, 2006-2014), on adults 50-64 years at baseline (57-73 years by 2014), and fit multinomial logistic regression models to assess the association between baseline HbA1c, cognitive function (using Langa-Weir classifications) and mortality across 8-years. Additionally, we test for modification effects by race/ethnicity. In age- and sex-adjusted models high HbA1c level was associated with lower baseline cognition and higher relative risk ratios (RRR; vs. normal cognition) for cognitive impairment no dementia (CIND; RRR= 2.3; 95%CI=[1.38;3.84]; p<0.01), and dementia (RRR= 4.00; 95%CI=[1.76;9.10]; p<0.01). Adjusting for sociodemographic, behavioral risk factors, and other health conditions explained the higher RRR for CIND and attenuated the RRR for dementia by approximately 30%. HbA1c levels were not linked to the slope of cognitive decline, and we found no evidence of modification effects for HbA1c by race/ethnicity. Targeting interventions for glycemic control in the critical midlife period can protect baseline cognition and buffer against downstream development of cognitive impairment. This can yield important public health benefits and reductions in burdens associated with cognitive impairment, particularly among race/ethnic minorities who are at higher risk for metabolic diseases.

| S-EPMC8174791 | biostudies-literature

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