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The MET pathway is a promising target in patients with non-small-cell lung cancer (NSCLC). Fluorescence in situ hybridization analysis has become a standard method to detect MET amplification. However, no consensus has been reached regarding the definition of MET amplification. We aimed to find clinically meaningful cutoffs for MET amplification that could be used as a prognostic marker and/or indication for MET inhibitor therapy.
We reviewed the fluorescence in situ hybridization results of MET/CEP7 (centromere of chromosome 7) for 2260 patients with treatment-naive NSCLC from 2014 to 2019. Clinical and pathologic data were collected from the medical records. Log-rank tests and Cox proportional hazard models were used to estimate the overall survival (OS) among patients with different MET/CEP7 ratios and/or MET copy numbers.
Of the 2260 patients, 130 (5.8%) had had a MET/CEP7 ratio of≥ 1.8 and 13 (0.6%) had had a ratio of≥ 5.0. Of these 130 patients with a MET/CEP7 ratio of≥ 1.8, 123 (95%) also had a MET copy number of≥ 5. In general, a higher MET copy number and higher MET/CEP7 ratio were associated with advanced tumor stage. The OS was significantly shorter when the MET copy number was≥ 10 and/or when the MET/CEP7 ratio was≥ 1.8. A MET/CEP7 ratio of≥ 1.8 remained a significant hazard to OS on multivariate analysis (hazard ratio, 1.63; P= .019).
Patients with a MET copy number of≥ 10 and/or MET/CEP7 ratio of≥ 1.8 showed significantly poorer survival, and a MET/CEP7 ratio of≥ 1.8 was an independent poor prognostic factor.
Patients with a MET copy number of ≥ 10 and/or MET/CEP7 ratio of ≥ 1.8 showed significantly poorer survival, and a MET/CEP7 ratio of ≥ 1.8 was an independent poor prognostic factor.
While links between pornography use and couple relational well-being have been the subject of multiple research studies, less attention has been paid to the associations between pornography use and specific sexual behavior within the relationship.
This study aimed to explore associations between each partner's pornography use, sexual desire, sexual satisfaction, and intercourse/non-intercourse sexual behavior. The confounding and moderating role of religiosity was also explored.
A dyadic sample of 240 heterosexual couples was used. Measurement assessed pornography use, sexual desire, sexual satisfaction, and sexual behavior.
Sexual satisfaction as well as intercourse and non-intercourse sexual behaviors were examined.
Results suggested consistent gendered differences where female pornography use was directly associated with higher reports of female sexual desire, whereas male pornography use was directly associated with more male but less female partner desire and lower overall male sexual satisfactthis study is the use of dyadic data. The main limitation is the cross-sectional nature of the data CONCLUSION The associations between pornography use and a variety of outcomes are highly nuanced. This study provides an important step forward in more fully accounting for the complications of pornography use in a relationship. Willoughby BJ, Leonhardt ND, Augustus RA. Associations Between Pornography Use and Sexual Dynamics Among Heterosexual Couples. J Sex Med 2021;18179-192.
Vaginoplasty is a crucial part of genital gender-affirming surgery with the number of trans women undergoing this intervention steadily, however, up to date, there is still no standardized vaginoplasty technique.
This retrospective single-center study compares single-stage vs two-stage penile skin inversion vaginoplasty techniques and their long-term outcomes.
Medical records of 63 consecutive patients who underwent single-stage vaginoplasty, as described by Dr Preecha Tiewtranon, and 62 consecutive patients who underwent 2-stage vaginoplasty were reviewed.
The mean postoperative hospital stay was 7days for patients who underwent single-stage vaginoplasty vs 16days for patients who underwent 2-stage vaginoplasty. Neovaginal depth proved constant in patients who underwent single-stage vaginoplasty, whereas a loss of more than 30% was observed in patients who underwent 2-stage vaginoplasty during the first postoperative year. Early complications were more common than late-onset complications in both grosuperior esthetic and functional outcomes were observed in the single-stage than in the two-stage penile skin inversion vaginoplasty surgical technique. Fakin RM, Giovanoli P. A Single-Center Study Comparison of Two Different Male-to-Female Penile Skin Inversion Vaginoplasty Techniques and Their 3.5-Year Outcomes. J Sex Med 2021;18391-399.
Significantly lower complication and revision rates, shorter recovery time, and superior esthetic and functional outcomes were observed in the single-stage than in the two-stage penile skin inversion vaginoplasty surgical technique. Fakin RM, Giovanoli P. A Single-Center Study Comparison of Two Different Male-to-Female Penile Skin Inversion Vaginoplasty Techniques and Their 3.5-Year Outcomes. J Sex Med 2021;18391-399.
The cardiovascular (CV) safety of estrogen replacement therapy (ERT) in perimenopausal women remains uncertain. Although exogenous estrogens increase HDL cholesterol (HDL-C), estrogen-mediated effects on alternative metrics of HDL that may better predict CV risk are unknown.
To determine the effects of transdermal ERT on HDL composition and cholesterol efflux capacity (CEC), as well as the relationships between these metrics and CV risk factors.
Fasting plasma samples were analyzed from 101 healthy, perimenopausal women randomized to receive either transdermal placebo or transdermal estradiol (100 μg/24h) with intermittent micronized progesterone. At baseline and after 6 months of treatment, serum HDL CEC, HDL particle concentration, HDL protein composition, insulin resistance and brachial artery flow-mediated dilatation (FMD) were measured.
No difference between groups was found for change in plasma HDL-C (p=0.69). Between-group differences were found for changes in serum HDL total CEC [median change from baseline -5.4 (-17.3,+8.4)% ERT group versus+5.8 (-6.3,+16.9)% placebo group, p=0.01] and ABCA1-specific CEC [median change from baseline -5.3 (-10.7,+6.7)% ERT group versus+7.4 (-1.5,+18.1)% placebo group, p=0.0002]. Relative to placebo, transdermal ERT led to reductions in LDL-C (p<0.0001) and insulin resistance (p=0.0002). An inverse correlation was found between changes in serum HDL total CEC and FMD (β=-0.26, p=0.004).
Natural menopause leads to an increase in serum HDL CEC, an effect that is abrogated by transdermal ERT. However, transdermal ERT leads to favorable changes in major CV risk factors.
Natural menopause leads to an increase in serum HDL CEC, an effect that is abrogated by transdermal ERT. However, transdermal ERT leads to favorable changes in major CV risk factors.IgE antibodies play a protective role against parasites and environmental toxins by its strong effector functions. However, aberrant IgE production can contribute to the development of allergic disorders, and thus is tightly regulated. Beside its very short half-life, IgE is normally produced only transiently and its affinity maturation is limited under physiological immune responses. Although such distinct characteristics of IgE among Ig classes are well-known, the underlying molecular mechanisms have not been understood until recently. Somatic or genetic defects of such mechanisms can lead to pathogenesis of allergic diseases. In this review, we summarize recent advances in our understanding of the mechanisms that control the production of IgE and formation of IgE-type humoral memory, focusing on the B cell immune responses.
Aneurysms are considered focal manifestations of a systemic vascular condition, and various studies report co-prevalence of aneurysms in different vascular beds. Insight into profiles of patients at risk of multiple aneurysms is lacking, and few clinical algorithms exist if additional screening is indicated. This systematic review assessed the co-prevalence of aneurysms in different vascular beds and analysed putative risk factors for multiple aneurysms.
Medline, Embase, and Cochrane libraries were searched up to February 2020 for studies reporting co-prevalence of aneurysms in different vascular beds using the keywords "aneurysm", "co-prevalence", or synonyms. All studies were reviewed by two authors independently. Studies were excluded if they described concomitant treatment of multi-aneurysms, or if the aneurysm was reported solely bilateral, post-dissection, mycotic, traumatic, iatrogenic, or caused by a connective tissue disease. Radar plots were used to indicate studies that found an association betclinical predictors may assist when deciding whether a patient with a primary aneurysm needs to be screened for additional aneurysms.
Approximately one in six patients with a primary aneurysm harbours an additional aneurysm, increasing to one in four if the patient has a popliteal artery aneurysm. Higher age, hypertension, stenotic disease, presence of multiple (at least three) aneurysms, and primary aneurysm size were predictive of aneurysm co-prevalence. Polyinosinic acid-polycytidylic acid These clinical predictors may assist when deciding whether a patient with a primary aneurysm needs to be screened for additional aneurysms.
The aim of this review was to investigate comparative outcomes of fenestrated or branched endovascular aneurysm repair (F/BEVAR) with open repair for juxta/para/suprarenal or thoraco-abdominal aortic aneurysms.
Electronic bibliographic sources (MEDLINE and Embase) were interrogated using the Healthcare Databases Advanced Search interface. Eligible studies compared F/BEVAR with open repair for complex aortic aneurysms using propensity score or Cox regression modelling/multivariable logistic regression analysis. Pooled estimates of peri-operative outcomes were calculated using the odds ratio (OR) and 95% confidence interval (CI). The result of time to event analysis was reported as summary hazard ratio (HR) and 95% CI. Random effects models and the inverse variance method were applied. The quality of evidence was graded using the system developed by the Grades of Recommendation, Assessment, Development and Evaluation (GRADE) working group.
Eleven studies published between 2014 and 2019 were selected for icular/aortic service provision.
The evidence is uncertain about the effect of F/BEVAR on peri-operative mortality when compared with open repair. There is probably no difference in overall survival, but F/BEVAR results in an increased re-intervention hazard. There is a need for high level evidence to inform decision making and vascular/aortic service provision.A new dialdehyde was designed and synthesized containing naphthalene groups, and then its macrocycle was prepared with 1,4-diaminobuthan. A modified nanoprecipitation method has been reported for the preparation of the nanoparticles. In this method, to obtain nanoparticles with small particle sizes, the nucleation rate was increased with decreasing of the mixing time. The organic nanoparticles were used for turn-off fluorescence response of low concentration of Sn2+ ions over cations such as Cs+, K+, Na+, Ba2+, Ca2+, Mg2+, Al3+, Pb2+, Zn2+, Cu2+, Ni2+, Co2+, Fe2+, Mn2+, Ag+, Cd2+, and Hg2+ and ions in aqueous buffer solution. The limit of detection was 5.4 nM.
Read More: https://www.selleckchem.com/products/polyinosinic-acid-polycytidylic-acid.html
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