Project description:BackgroundMidlife women have a higher risk of cardiometabolic disease than younger women, but the lifelong biological/lifestyle factors responsible for this increase are unclear.ObjectivesWe investigated whether pregnancy history is a risk factor for midlife overweight/obesity and evaluated potential hormonal mechanisms.MethodsThe Baltimore Midlife Women's Health Study, a prospective cohort, recruited 772 women aged 45-54 y. Women reported pregnancy characteristics via questionnaires, trained staff measured weight/height to calculate midlife BMI, and serum hormones were assessed by ELISA. Logistic regression models assessed associations of pregnancy history with risk of midlife overweight/obesity and BMI gain since age 18. We additionally explored whether associations differed by menopausal status, and whether midlife hormones mediated relationships of pregnancy history and midlife BMI.ResultsThese premenopausal or perimenopausal women were 66% Caucasian/White and 30% African American/Black, with a median of 2 live births (range: 0-11) and median age at first birth of 27 y (range: 12-46 y). Women with 0 and ≥2 live births had lower odds of overweight/obesity than those with 1 birth (OR = 0.47; 95% CI: 0.23, 0.96; P = 0.04, and OR = 0.58; 95% CI: 0.35, 0.95; P = 0.03, respectively). Women with ≥2 live births also had lower odds of BMI gain than those with 1 birth (OR = 0.66; 95% CI: 0.41, 1.06; P = 0.08). Furthermore, women who were older at their first birth had lower odds of overweight/obesity (OR = 0.96; 95% CI: 0.92, 1.00; P = 0.03) and BMI gain (OR = 0.97; 95% CI: 0.93, 1.00; P = 0.06). Number of pregnancies and age at last pregnancy were not associated with midlife overweight/obesity or BMI gain. Associations did not differ by menopausal status and were not explained by midlife hormones.ConclusionsEarlier childbirth and having 1 child increased women's risk of midlife overweight/obesity and BMI gain since age 18. Additional studies should focus on women's childbearing years as a critical determinant of midlife metabolic health.
Project description:TRACERx (TRAcking Cancer Evolution through therapy (Rx)) is a prospective cohort study designed to investigate intratumor heterogeneity (ITH) in relation to clinical outcome, and to determine the clonal nature of driver events and evolutionary processes in early stage non-small cell lung cancer (NSCLC). This study looks at the multi-region RNAseq data from the TRACERx100 cohort with high enough quality RNA available. There is RNAseq data from 164 regions (64 patients).
Project description:Infections by the New World alphaviruses, Eastern Equine encephalitis virus (EEEV), Venezuelan Equine encephalitis virus (VEEV), and Western Equine encephalitis virus (WEEV), cause febrile illness that can progress to fatal disease in humans and equids. Currently there are no FDA-approved antivirals for prophylactic or therapeutic treatment of human infection by these viruses. To combat these infections, we have developed a novel small molecule, BDGR-164, which has subnanomolar potency against VEEV, EEEV, and WEEV. Using an intranasal route of virus infection in a lethal BALB/c model, prophylactic subcutaneous administration of BDGR-164 conferred 100% (VEEV), 88% (EEEV), and 63% (WEEV) survival. To evaluate the ability of BDGR-164 to reduce viral RNA/antigen, inflammation, and pathogenesis, we used RNASeq and histopathology of whole brain at 4 days post-infection (dpi). Viral RNA levels and antigen were reduced significantly in virus-infected and BDGR-164-treated versus virus-infected, sham-treated mice. Moreover, there was a significant reduction in host immune responses associated with inflammatory signaling, immune cell recruitment, and programmed cell death in virus-infected, BDGR-164 treated mice. Cytokine analyses of sera corroborated the reduction in upregulation of the immune response in virus-infected, BDGR-164 treated mice. Limited antiviral resistance to BDGR-164 was detected in one mouse on 4 dpi at NSP2:Y102C. In conclusion, our studies suggest that BDGR-164 has broad and potent prophylactic efficacy against the neurotropic alphaviruses.
Project description:BACKGROUND:A declining trend in mean cholesterol levels and smoking has been observed in high-income western countries during the last few decades, whereas obesity rates have increased. Simultaneously, mortality from coronary heart disease has decreased. The aim of the present study was to determine whether the trends in cardiovascular risk factors have continued in successive cohorts of middle-aged women over a period of 34?years. METHODS:Six population-based, cross-sectional samples of women (n?=?2294) mean age: 49.8?years (range: 45-54), living in Gothenburg, Sweden, were investigated between 1980 and 2014. RESULTS:Body mass index (BMI) increased over time, with a mean BMI of 24.7?kg/m2 in 1980 to 25.7?kg/m2 in 2013-2014, corresponding to a weight gain of 4.5?kg, together with an increase in the proportion of obese individuals (BMI???30?kg/m2) from 10.4 to 16.6% (p?=?0.0012). The proportion of smokers and women with hypertension decreased from 34.5 to 12.8% (p?=?0.0006) and from 37.7 to 24.5% (p?<?0.0001) respectively. Mean total serum cholesterol levels decreased from 6.23 (SD 1.09) mmol/L in 1980 to 5.43 (SD 0.98) mmol/L in 2013-2014 (p?<?0.0001). Self-reported leisure time regular exercise increased from 7.8% in 1980 to 35.6% in 2013-2014 (p?<?0.0001). For women born in 1963, the prevalence ratio of not having any of five major cardiovascular risk factors was 1.82 (95% confidence interval (CI) 1.38-2.41), compared with women born in 1925-1934. CONCLUSION:The trend towards increasing obesity, more leisure-time physical activity and less smoking remains, while the decrease in serum cholesterol appears to have abated.
Project description:Triplicate samples of RAW 264.7 murine macrophages either untreated, stimulated with 100 ng/ml LPS for 18 hours, or constituitively over-expressing CstF-64 were analyzed by microarray using Affymetrix murine gene chip 430A. Keywords = RAW 264.7 macrophages Keywords = LPS Keywords = CstF-64 Keywords: repeat sample
Project description:IntroductionAdverse childhood experiences (ACEs) are preventable, potentially traumatic events that occur in childhood. Alcohol use during pregnancy can result in miscarriage, stillbirth, preterm birth, and a range of lifelong behavioral, intellectual, and physical disabilities in the child. Limited research has examined the relationship between ACEs and alcohol use in pregnancy; available studies might not reflect current trends in this relationship.MethodsUsing 2019-2023 Behavioral Risk Factor Surveillance System data from 41 U.S. jurisdictions, the prevalence of self-reported current alcohol use among pregnant persons aged 18-49 years (N = 2371) was estimated by ACEs and selected characteristics. We calculated unadjusted and adjusted prevalence ratios (aPR) for the relationship between ACEs and alcohol use during pregnancy.ResultsThe prevalence of current alcohol use was 16.2 % (95 % CI = 11.5-20.9) among pregnant persons who reported experiencing four or more ACEs, and 8.6 % (95 % CI = 5.7-11.5) among those who reported no ACEs. When adjusting for sociodemographic characteristics, pregnant persons who reported four or more ACEs were more likely to report current alcohol use compared to those who reported no ACEs (aPR = 1.8, 95 % CI = 1.1-2.9). Individually, pregnant persons who experienced emotional abuse (aPR = 1.9, 95 % CI = 1.3-2.7) and witnessed intimate partner violence (aPR = 1.6, 95 % CI = 1.1-2.4) were more likely to use alcohol during pregnancy compared to pregnant persons who did not report experiencing these ACEs.ConclusionsHigher ACE exposure was associated with alcohol use during pregnancy. Steps can be taken to mitigate their potential harms. Clinical and community-level interventions can address ACEs, which might reduce alcohol use during pregnancy.
| S-EPMC11851270 | biostudies-literature
Project description:TCR sequencing in NSCLC (TRACERx)
Project description:The title compound, C(51)H(78)N(4)O(12), is a derivative of rapamycin, a triene macrolide anti-biotic mol-ecule isolated from Streptomyces hygroscopicus. The macrocyclic ring structure has 15 chiral centres, with one of the substituent hy-droxy groups giving an intra-molecular hydrogen bond to a ketone O-atom acceptor. The mol-ecules also form inter-molecular hy-droxy-ketone O-H⋯O hydrogen-bonding associations, giving one-dimensional chains extending along (010). The crystal has 108 Å(3) solvent-accessible voids.