scholarly journals RNA profiles reveal signatures of future health and disease in pregnancy

Nature ◽  
2022 ◽  
Author(s):  
Morten Rasmussen ◽  
Mitsu Reddy ◽  
Rory Nolan ◽  
Joan Camunas-Soler ◽  
Arkady Khodursky ◽  
...  
Keyword(s):  
Clinical Presentation ◽  
State Of The Art ◽  
Normal Pregnancy ◽  
Biological Processes ◽  
Racially Diverse ◽  
Future Health ◽  
Blood Draw ◽  
Maternal Morbidity And Mortality ◽  
Health And Disease ◽  
Underlying Pathophysiology

AbstractMaternal morbidity and mortality continue to rise, and pre-eclampsia is a major driver of this burden1. Yet the ability to assess underlying pathophysiology before clinical presentation to enable identification of pregnancies at risk remains elusive. Here we demonstrate the ability of plasma cell-free RNA (cfRNA) to reveal patterns of normal pregnancy progression and determine the risk of developing pre-eclampsia months before clinical presentation. Our results centre on comprehensive transcriptome data from eight independent prospectively collected cohorts comprising 1,840 racially diverse pregnancies and retrospective analysis of 2,539 banked plasma samples. The pre-eclampsia data include 524 samples (72 cases and 452 non-cases) from two diverse independent cohorts collected 14.5 weeks (s.d., 4.5 weeks) before delivery. We show that cfRNA signatures from a single blood draw can track pregnancy progression at the placental, maternal and fetal levels and can robustly predict pre-eclampsia, with a sensitivity of 75% and a positive predictive value of 32.3% (s.d., 3%), which is superior to the state-of-the-art method2. cfRNA signatures of normal pregnancy progression and pre-eclampsia are independent of clinical factors, such as maternal age, body mass index and race, which cumulatively account for less than 1% of model variance. Further, the cfRNA signature for pre-eclampsia contains gene features linked to biological processes implicated in the underlying pathophysiology of pre-eclampsia.

scholarly journals Ectopic pregnancy in a tertiary care centre of Jharkhand, India

2019 ◽  
Vol 8 (8) ◽  
pp. 2969
Author(s):  
Meetali Parashar ◽  
Meena Mehta
Keyword(s):  
Ectopic Pregnancy ◽  
Clinical Presentation ◽  
Previous History ◽  
First Trimester ◽  
Near Miss ◽  
Obstetrics And Gynaecology ◽  
Maternal Morbidity And Mortality ◽  
History Of ◽  
Β Hcg ◽  
A Prospective Study

Background: Ectopic pregnancy is one in which the fertilized ovum is implanted and develops outside the endometrial cavity. It is an important cause of maternal morbidity and mortality in first trimester. The present study was conducted to study the risk factors, clinical presentation and management of ectopic pregnancy in RIMS, Ranchi, Jharkhand, India.Methods: This was a prospective study conducted in the department of obstetrics and gynaecology, RIMS, Ranchi, Jharkhand during May 2017 to September 2018. A total of 90 cases were included in the study.Results: 80% of the patients presented with amenorrhoea, 98% had abdominal pain and 69% had vaginal bleeding. Ultrasonography revealed hemoperitoneum in about 93% patients. 16 (18%) patients had history of infertility whereas 10 patients (11%) had taken treatment of infertility.6 (7%) patients had history of STD or PID.14 (16%) had undergone bilateral tubectomy.2 (2%) had history of IUCD insertion and 12 (13%) patients had undergone previously lscs. 54 patients (60%) had undergone D and C and 6 patients (7%) had a previous history of ectopic pregnancy. 68 (76%) underwent only salpingectomy.12 (13%) had salpingo-oophorectomy and 10 (11%) had salpingectomy with contralateral tubectomy.Conclusions:Diagnosis of ectopic pregnancy requires clinical suspicion and supportive investigations like UPT, ultrasonography, β HCG and laparoscopy. It is an important cause of admission to RIMS as maternal near miss cases.Background: Ectopic pregnancy is one in which the fertilized ovum is implanted and develops outside the endometrial cavity. It is an important cause of maternal morbidity and mortality in first trimester. The present study was conducted to study the risk factors, clinical presentation and management of ectopic pregnancy in RIMS, Ranchi, Jharkhand, India.Methods: This was a prospective study conducted in the department of obstetrics and gynaecology, RIMS, Ranchi, Jharkhand during May 2017 to September 2018. A total of 90 cases were included in the study.Results: 80% of the patients presented with amenorrhoea, 98% had abdominal pain and 69% had vaginal bleeding. Ultrasonography revealed hemoperitoneum in about 93% patients. 16 (18%) patients had history of infertility whereas 10 patients (11%) had taken treatment of infertility.6 (7%) patients had history of STD or PID.14 (16%) had undergone bilateral tubectomy.2 (2%) had history of IUCD insertion and 12 (13%) patients had undergone previously lscs. 54 patients (60%) had undergone D and C and 6 patients (7%) had a previous history of ectopic pregnancy. 68 (76%) underwent only salpingectomy.12 (13%) had salpingo-oophorectomy and 10 (11%) had salpingectomy with contralateral tubectomy.Conclusions: Diagnosis of ectopic pregnancy requires clinical suspicion and supportive investigations like UPT, ultrasonography, β HCG and laparoscopy. It is an important cause of admission to RIMS as maternal near miss cases.

scholarly journals In vivo interactome profiling by enzyme‐catalyzed proximity labeling

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yangfan Xu ◽  
Xianqun Fan ◽  
Yang Hu
Keyword(s):  
State Of The Art ◽  
Catalytic Efficiency ◽  
Biological Processes ◽  
Protein Protein Interaction ◽  
Current State ◽  
Protein Interactome ◽  
Potential Applications ◽  
Protein Protein Interaction Networks ◽  
Temporal And Spatial

AbstractEnzyme-catalyzed proximity labeling (PL) combined with mass spectrometry (MS) has emerged as a revolutionary approach to reveal the protein-protein interaction networks, dissect complex biological processes, and characterize the subcellular proteome in a more physiological setting than before. The enzymatic tags are being upgraded to improve temporal and spatial resolution and obtain faster catalytic dynamics and higher catalytic efficiency. In vivo application of PL integrated with other state of the art techniques has recently been adapted in live animals and plants, allowing questions to be addressed that were previously inaccessible. It is timely to summarize the current state of PL-dependent interactome studies and their potential applications. We will focus on in vivo uses of newer versions of PL and highlight critical considerations for successful in vivo PL experiments that will provide novel insights into the protein interactome in the context of human diseases.

scholarly journals Chronic Inflammation and Radiation-Induced Cystitis: Molecular Background and Therapeutic Perspectives

Cells ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 21
Author(s):  
Carole Helissey ◽  
Sophie Cavallero ◽  
Clément Brossard ◽  
Marie Dusaud ◽  
Cyrus Chargari ◽  
...  
Keyword(s):  
Stromal Cells ◽  
Therapeutic Strategy ◽  
Randomized Trials ◽  
Clinical Presentation ◽  
Therapeutic Approaches ◽  
Radiation Cystitis ◽  
Fibrotic Process ◽  
Radiation Induced ◽  
Therapeutic Irradiation ◽  
Underlying Pathophysiology

Radiation cystitis is a potential complication following the therapeutic irradiation of pelvic cancers. Its clinical management remains unclear, and few preclinical data are available on its underlying pathophysiology. The therapeutic strategy is difficult to establish because few prospective and randomized trials are available. In this review, we report on the clinical presentation and pathophysiology of radiation cystitis. Then we discuss potential therapeutic approaches, with a focus on the immunopathological processes underlying the onset of radiation cystitis, including the fibrotic process. Potential therapeutic avenues for therapeutic modulation will be highlighted, with a focus on the interaction between mesenchymal stromal cells and macrophages for the prevention and treatment of radiation cystitis.

scholarly journals Capsule-LPI: a LncRNA–protein interaction predicting tool based on a capsule network

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Ying Li ◽  
Hang Sun ◽  
Shiyao Feng ◽  
Qi Zhang ◽  
Siyu Han ◽  
...  
Keyword(s):  
Protein Interactions ◽  
State Of The Art ◽  
Recognition Performance ◽  
Feature Learning ◽  
Biological Processes ◽  
Multimodal Features ◽  
Learning Architectures ◽  
Motif Information ◽  
Experimental Comparisons ◽  
Better Than

Abstract Background Long noncoding RNAs (lncRNAs) play important roles in multiple biological processes. Identifying LncRNA–protein interactions (LPIs) is key to understanding lncRNA functions. Although some LPIs computational methods have been developed, the LPIs prediction problem remains challenging. How to integrate multimodal features from more perspectives and build deep learning architectures with better recognition performance have always been the focus of research on LPIs. Results We present a novel multichannel capsule network framework to integrate multimodal features for LPI prediction, Capsule-LPI. Capsule-LPI integrates four groups of multimodal features, including sequence features, motif information, physicochemical properties and secondary structure features. Capsule-LPI is composed of four feature-learning subnetworks and one capsule subnetwork. Through comprehensive experimental comparisons and evaluations, we demonstrate that both multimodal features and the architecture of the multichannel capsule network can significantly improve the performance of LPI prediction. The experimental results show that Capsule-LPI performs better than the existing state-of-the-art tools. The precision of Capsule-LPI is 87.3%, which represents a 1.7% improvement. The F-value of Capsule-LPI is 92.2%, which represents a 1.4% improvement. Conclusions This study provides a novel and feasible LPI prediction tool based on the integration of multimodal features and a capsule network. A webserver (http://csbg-jlu.site/lpc/predict) is developed to be convenient for users.

Two routes of direct intercellular communication in brain cancer

2021 ◽  
Vol 478 (6) ◽  
pp. 1283-1286
Author(s):  
Daniel D. Azorín ◽  
Frank Winkler
Keyword(s):  
Tumor Cells ◽  
Brain Cancer ◽  
State Of The Art ◽  
Tumor Resistance ◽  
Tunneling Nanotubes ◽  
Functional Studies ◽  
Membrane Tube ◽  
Biochemical Journal ◽  
Culture Model ◽  
Health And Disease

Glioblastoma is a particularly challenging disease characterized by the connection of tumor cells to functional multicellular networks that effectively resist therapies. In this issue of Biochemical Journal, Pinto et al. report the discovery of two distinct classes of intercellular membrane tube connections, tunneling nanotubes and tumor microtubes, in the same state-of-the-art culture model of patient-derived glioblastoma material. These findings contribute to our understanding of the heterogeneity of intercellular membrane tubes in health and disease, and pave the way for future functional studies on their various roles for disease progression and tumor resistance.

scholarly journals Treatment of infant leukemias: challenge and promise

Hematology ◽  
2013 ◽  
Vol 2013 (1) ◽  
pp. 596-600 ◽  
Author(s):  
Patrick Brown
Keyword(s):  
High Frequency ◽  
Clinical Presentation ◽  
State Of The Art ◽  
Poor Response ◽  
Cooperative Groups ◽  
Therapeutic Approaches ◽  
Unique Biology ◽  
Current Therapies ◽  
Epidemiologic Features ◽  
Infant Leukemia

Abstract Leukemia in infants is rare but generates tremendous interest due to its aggressive clinical presentation in a uniquely vulnerable host, its poor response to current therapies, and its unique biology that is increasingly pointing the way toward novel therapeutic approaches. This review highlights the key clinical, pathologic, and epidemiologic features of infant leukemia, including the high frequency of mixed lineage leukemia (MLL) gene rearrangements. The state of the art with regard to current approaches to risk stratified treatment of infant leukemia in the major international cooperative groups is discussed. Finally, exciting recent discoveries elucidating the molecular biology of infant leukemia are reviewed and novel targeted therapeutic strategies, including FLT3 inhibition and modulation of aberrant epigenetic programs, are suggested.

Introductory remarks

1981 ◽  
Vol 302 (1468) ◽  
pp. 219-219
Keyword(s):  
State Of The Art ◽  
Biological Processes ◽  
Industrial Workers ◽  
Practical Application ◽  
Electroanalytical Methods ◽  
Secondary Battery ◽  
On Line ◽  
The Subject ◽  
General Aspects ◽  
Cross Fertilization

As its title suggests, the purpose of this Discussion Meeting is to review the present state of the art in industrial electrochemistry. We have sought to bring together academic and industrial workers in this field as well as other interested participants. I hope that as the meeting proceeds, a cross-fertilization of ideas will occur both in the formal sessions and during the breaks. The organizers of this Meeting have given considerable thought to the order in which the different aspects of electrochemistry should be presented. Evidently we had to begin with the fundamentals, after which we decided to deal with the general aspects of electrosynthesis including the developing possibilities of supplying energy to biological processes by electrochem ical means. This led naturally to consideration of electrochemical engineering and electroanalytical methods for on-line control. In one session we shall move to a very practical application of electrochemistry, namely batteries. Beginning with Volta’s simple cell, this application is one of the oldest in electrochemistry. In spite of all the advances in the subject, the possibilities of new primary and secondary battery systems remain as wide as ever. I, for one, shall be most interested to hear the progress reports of our three speakers.

scholarly journals Hidden in plain sight: What remains to be discovered in the eukaryotic proteome?

2018 ◽  
Author(s):  
Valerie Wood ◽  
Antonia Lock ◽  
Midori A. Harris ◽  
Kim Rutherford ◽  
Jürg Bähler ◽  
...  
Keyword(s):  
Gene Ontology ◽  
Fission Yeast ◽  
Genome Sequencing ◽  
Large Scale ◽  
Biological Process ◽  
Blind Spot ◽  
Model Organisms ◽  
Biological Processes ◽  
Health And Disease

AbstractThe first decade of genome sequencing stimulated an explosion in the characterization of unknown proteins. More recently, the pace of functional discovery has slowed, leaving around 20% of the proteins even in well-studied model organisms without informative descriptions of their biological roles. Remarkably, many uncharacterized proteins are conserved from yeasts to human, suggesting that they contribute to fundamental biological processes. To fully understand biological systems in health and disease, we need to account for every part of the system. Unstudied proteins thus represent a collective blind spot that limits the progress of both basic and applied biosciences.We use a simple yet powerful metric based on Gene Ontology (GO) biological process terms to define characterized and uncharacterized proteins for human, budding yeast, and fission yeast. We then identify a set of conserved but unstudied proteins in S. pombe, and classify them based on a combination of orthogonal attributes determined by large-scale experimental and comparative methods. Finally, we explore possible reasons why these proteins remain neglected, and propose courses of action to raise their profile and thereby reap the benefits of completing the catalog of proteins’ biological roles.

The Salivary miRNome: A Promising Biomarker of Disease

MicroRNA ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Sara Tomei ◽  
Harshitha Shobha Manjunath ◽  
Selvasankar Murugesan ◽  
Souhaila Al Khodor
Keyword(s):  
Current Knowledge ◽  
Transcriptional Level ◽  
Biological Processes ◽  
Circulating Mirnas ◽  
Disease Pathogenesis ◽  
Technical Aspects ◽  
Recent Developments ◽  
Health And Disease ◽  
Non Coding Rnas

: MicroRNAs (miRNAs) are non-coding RNAs ranging from 18-24 nucleotides also known to regulate the human genome mainly at the post-transcriptional level. MiRNAs were shown to play an important role in most biological processes such as apoptosis and in the pathogenesis of many diseases such as cardiovascular diseases and cancer. Recent developments of advanced molecular high-throughput technologies have enhanced our knowledge of miRNAs. MiRNAs can now be discovered, interrogated, and quantified in various body fluids, and hence can serve as diagnostic and therapeutic markers for many diseases. While most studies use blood as a sample source to measure circulating miRNAs as possible biomarkers for disease pathogenesis, fewer studies have assessed the role of salivary miRNAs in health and disease. This review aims at providing an overview of the current knowledge of the salivary miRNome, addressing the technical aspects of saliva sampling and highlighting the applicability of miRNA screening to clinical practice.

scholarly journals Dietary microRNA—A Novel Functional Component of Food

2019 ◽  
Vol 10 (4) ◽  
pp. 711-721 ◽  
Author(s):  
Lin Zhang ◽  
Ting Chen ◽  
Yulong Yin ◽  
Chen-Yu Zhang ◽  
Yong-Liang Zhang
Keyword(s):  
Gene Expression ◽  
Small Rnas ◽  
Biological Significance ◽  
Circulatory System ◽  
Physiological Effects ◽  
Biological Processes ◽  
Regulate Gene Expression ◽  
Functional Component ◽  
Health And Disease ◽  
Regulate Gene

ABSTRACT MicroRNAs are a class of small RNAs that play essential roles in various biological processes by silencing genes. Evidence emerging in recent years suggests that microRNAs in food can be absorbed into the circulatory system and organs of humans and other animals, where they regulate gene expression and biological processes. These food-derived dietary microRNAs may serve as a novel functional component of food, a role that has been neglected to date. However, a significant amount of evidence challenges this new concept. The absorption, stability, and physiological effects of dietary microRNA in recipients, especially in mammals, are currently under heavy debate. In this review, we summarize our current understanding of the unique characteristics of dietary microRNAs and concerns about both the mechanistic and methodological basis for studying the biological significance of dietary microRNAs. Such efforts will benefit continuing investigations and offer new perspectives for the interpretation of the roles of dietary microRNA with respect to the health and disease of humans and animals.

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