The document describes a new method called MixEnrich for identifying dysregulated pathways within individual patients using single-subject transcriptome analysis. MixEnrich uses a mixture model to discover differentially expressed genes between samples, followed by gene set enrichment analysis to identify pathways enriched with dysregulated genes. Simulation studies showed MixEnrich outperformed existing methods, accurately identifying dysregulated pathways across a range of parameters. The method was also validated in a case study and can help advance precision medicine by discovering dynamic changes in individual transcriptomes.
Talk delivered at Warwick Biomedical Engineering Seminar series 27 November 2014. Develops a theme emerging from a review in 2010:
J Watkins, A Marsh, P C Taylor, D R J Singer
Therapeutic Delivery, 2010, 1, 651-665
"Continued adherence to a single-drug single-target paradigm will limit the ability of chemists to contribute to advances in personalized medicine, whether they be in discovery or delivery"
Talk delivered at Warwick Biomedical Engineering Seminar series 27 November 2014. Develops a theme emerging from a review in 2010:
J Watkins, A Marsh, P C Taylor, D R J Singer
Therapeutic Delivery, 2010, 1, 651-665
"Continued adherence to a single-drug single-target paradigm will limit the ability of chemists to contribute to advances in personalized medicine, whether they be in discovery or delivery"
Her2Neu positive breast cancer is comprises of about 15-20% of all breast cancer. Among them quite a few number of patients present as de novo metastasis . In this presentation you ll find a guide how to manage it with relevant evidences. Presentation is meant for Oncology trainees.
A Rare International Dialogue (Sunday, May 12, 2019)
Theme One: Diagnosis and Beyond
WORKSHOP G: Cell and Gene Therapy from Laboratory to Market - Mark Lundie, Pfizer Canada
Inter Simple Sequence Repeats (ISSR) markers were utilized to identify the levels of heritable varieties and patterns of the populace structure among the five populaces of Pteris biaurita, a natural fern in India. A comprehensive examination was directed in three replicates at 2013-14 seasons in the Western Ghats, South India. Five wild P. biaurita, accessions (maiden hair) were assessed for genotyping studies. Results demonstrated a pivotal discrepancy among genotypes for they were characterized in view of this uniqueness in four groups by the genetic cluster examination. In this trial, ISSR primers amplified 63 polymorphic groups. In view of the genetic identity data, genotypes were figured and differed from 0.5714 to 0.6984. The percentage of polymorphism indicated predominant genotype that may be utilized for the conservation of species. ISSR appeared to be an obliging marker for prediction of genotype inside a closed group of inter specific populace in the investigation territory
Effects of Inflammatory Cytokines on Fibrosis-Related Gene Expression in Fibr...Ashley Kennedy
The normal healing process is broken up into three steps: inflammation, proliferation, and maturation. Two proteins vital to normal, healthy wound healing are connective tissue growth factor (CTGF) and transforming growth factor beta (TGFβ). Overexpression of these genes during healing can result in an excessive deposition of extracellular matrix (ECM) by fibroblasts. Buildup of this ECM is known as fibrosis and is observed in numerous diseases including cirrhosis, systemic sclerosis, kidney disease, and heart disease. In this study, we examined the effects of CTGF and TGFβ on fibroblasts to better understand how these two cytokines impact fibrosis-related phenotypes. We hypothesized that treating fibroblasts with CTGF and TGFβ together would yield a greater fibrotic response than treatment with either cytokine alone. To model post-wound inflammation, cells were treated with CTGF, TGFβ, or a combination of the two. Changes in gene expression were measured with quantitative polymerase chain reaction (qPCR). A scratch test assay, which models wounding, was also performed to examine fibroblast wound invasion. Cytokine treatment did impact fibrosis-related gene expression, but the combination of CTGF and TGFβ did not always have the greatest impact. Invasion of fibroblasts into the wound area was strongly influenced by CTGF and TGFβ. Addition of a TGFβ inhibitor eliminated the effect of CTGF and TGFβ treatment. Overall, the addition of cytokines increased fibrotic gene expression and fibroblast wound invasion, demonstrating their importance in the fibrotic response after wounding.
Genetic association between selected cytokine genes and glioblastoma in the H...Enrique Moreno Gonzalez
Glioblastoma (GBM) is the most malignant brain tumor. Many abnormal secretion and
expression of cytokines have been found in GBM, initially speculated that the occurrence of
GBM may be involved in these abnormal secretion of cytokines. This study aims to detect the
association of cytokine genes with GBM.
My Prostate Cancer Story by Paul SchellhammerTony Crispino
With permission of Dr. Schellhammer this slide deck should be interesting to any PCa patient. Dr. Schellhammer is a former president of the American Urological Association and a leading authority on prostate cancer. He has fought i long battle. He and his colleague, Paul Lange operated on each other and had vastly different results.
Presenter: Marina Sirota, UCSF
Recent advances in genome typing and sequencing technologies have enabled quick generation of a vast amount of molecular data at very low cost. The mining and computational analysis of this type of data can help shape new diagnostic and therapeutic strategies in biomedicine. In this talk, I will discuss how such technological advances in combination with data science and integrative analysis can be applied to drug discovery in the context of drug target identification, computational drug repurposing, and population stratification approaches.
Her2Neu positive breast cancer is comprises of about 15-20% of all breast cancer. Among them quite a few number of patients present as de novo metastasis . In this presentation you ll find a guide how to manage it with relevant evidences. Presentation is meant for Oncology trainees.
A Rare International Dialogue (Sunday, May 12, 2019)
Theme One: Diagnosis and Beyond
WORKSHOP G: Cell and Gene Therapy from Laboratory to Market - Mark Lundie, Pfizer Canada
Inter Simple Sequence Repeats (ISSR) markers were utilized to identify the levels of heritable varieties and patterns of the populace structure among the five populaces of Pteris biaurita, a natural fern in India. A comprehensive examination was directed in three replicates at 2013-14 seasons in the Western Ghats, South India. Five wild P. biaurita, accessions (maiden hair) were assessed for genotyping studies. Results demonstrated a pivotal discrepancy among genotypes for they were characterized in view of this uniqueness in four groups by the genetic cluster examination. In this trial, ISSR primers amplified 63 polymorphic groups. In view of the genetic identity data, genotypes were figured and differed from 0.5714 to 0.6984. The percentage of polymorphism indicated predominant genotype that may be utilized for the conservation of species. ISSR appeared to be an obliging marker for prediction of genotype inside a closed group of inter specific populace in the investigation territory
Effects of Inflammatory Cytokines on Fibrosis-Related Gene Expression in Fibr...Ashley Kennedy
The normal healing process is broken up into three steps: inflammation, proliferation, and maturation. Two proteins vital to normal, healthy wound healing are connective tissue growth factor (CTGF) and transforming growth factor beta (TGFβ). Overexpression of these genes during healing can result in an excessive deposition of extracellular matrix (ECM) by fibroblasts. Buildup of this ECM is known as fibrosis and is observed in numerous diseases including cirrhosis, systemic sclerosis, kidney disease, and heart disease. In this study, we examined the effects of CTGF and TGFβ on fibroblasts to better understand how these two cytokines impact fibrosis-related phenotypes. We hypothesized that treating fibroblasts with CTGF and TGFβ together would yield a greater fibrotic response than treatment with either cytokine alone. To model post-wound inflammation, cells were treated with CTGF, TGFβ, or a combination of the two. Changes in gene expression were measured with quantitative polymerase chain reaction (qPCR). A scratch test assay, which models wounding, was also performed to examine fibroblast wound invasion. Cytokine treatment did impact fibrosis-related gene expression, but the combination of CTGF and TGFβ did not always have the greatest impact. Invasion of fibroblasts into the wound area was strongly influenced by CTGF and TGFβ. Addition of a TGFβ inhibitor eliminated the effect of CTGF and TGFβ treatment. Overall, the addition of cytokines increased fibrotic gene expression and fibroblast wound invasion, demonstrating their importance in the fibrotic response after wounding.
Genetic association between selected cytokine genes and glioblastoma in the H...Enrique Moreno Gonzalez
Glioblastoma (GBM) is the most malignant brain tumor. Many abnormal secretion and
expression of cytokines have been found in GBM, initially speculated that the occurrence of
GBM may be involved in these abnormal secretion of cytokines. This study aims to detect the
association of cytokine genes with GBM.
My Prostate Cancer Story by Paul SchellhammerTony Crispino
With permission of Dr. Schellhammer this slide deck should be interesting to any PCa patient. Dr. Schellhammer is a former president of the American Urological Association and a leading authority on prostate cancer. He has fought i long battle. He and his colleague, Paul Lange operated on each other and had vastly different results.
Presenter: Marina Sirota, UCSF
Recent advances in genome typing and sequencing technologies have enabled quick generation of a vast amount of molecular data at very low cost. The mining and computational analysis of this type of data can help shape new diagnostic and therapeutic strategies in biomedicine. In this talk, I will discuss how such technological advances in combination with data science and integrative analysis can be applied to drug discovery in the context of drug target identification, computational drug repurposing, and population stratification approaches.
Biomedical big data and research clinical application for obesityHyung Jin Choi
1. What is Biomedical Big Data?
2. Biomedical Big Data
1) Genetic Data
2) Electrical Health Records
3) National Healthcare Data
4) Medical Images
5) Sensor/Mobile Data
6) Data Integration
3. Biomedical Big Data + Artificial Intelligence
4. Research/Clinical Application for Obesity
Manteia non confidential-presentation 2003-09Pascal Mayer
A non confidential corporate presentation of "Manteia Predictive Médicine" as of September 2003. Présents DNA colony sequencing resutls, instrument, DNA preparation for genotyping.
Adjusting OpenMP PageRank : SHORT REPORT / NOTESSubhajit Sahu
For massive graphs that fit in RAM, but not in GPU memory, it is possible to take
advantage of a shared memory system with multiple CPUs, each with multiple cores, to
accelerate pagerank computation. If the NUMA architecture of the system is properly taken
into account with good vertex partitioning, the speedup can be significant. To take steps in
this direction, experiments are conducted to implement pagerank in OpenMP using two
different approaches, uniform and hybrid. The uniform approach runs all primitives required
for pagerank in OpenMP mode (with multiple threads). On the other hand, the hybrid
approach runs certain primitives in sequential mode (i.e., sumAt, multiply).
06-04-2024 - NYC Tech Week - Discussion on Vector Databases, Unstructured Data and AI
Round table discussion of vector databases, unstructured data, ai, big data, real-time, robots and Milvus.
A lively discussion with NJ Gen AI Meetup Lead, Prasad and Procure.FYI's Co-Found
06-04-2024 - NYC Tech Week - Discussion on Vector Databases, Unstructured Data and AI
Discussion on Vector Databases, Unstructured Data and AI
https://www.meetup.com/unstructured-data-meetup-new-york/
This meetup is for people working in unstructured data. Speakers will come present about related topics such as vector databases, LLMs, and managing data at scale. The intended audience of this group includes roles like machine learning engineers, data scientists, data engineers, software engineers, and PMs.This meetup was formerly Milvus Meetup, and is sponsored by Zilliz maintainers of Milvus.
Techniques to optimize the pagerank algorithm usually fall in two categories. One is to try reducing the work per iteration, and the other is to try reducing the number of iterations. These goals are often at odds with one another. Skipping computation on vertices which have already converged has the potential to save iteration time. Skipping in-identical vertices, with the same in-links, helps reduce duplicate computations and thus could help reduce iteration time. Road networks often have chains which can be short-circuited before pagerank computation to improve performance. Final ranks of chain nodes can be easily calculated. This could reduce both the iteration time, and the number of iterations. If a graph has no dangling nodes, pagerank of each strongly connected component can be computed in topological order. This could help reduce the iteration time, no. of iterations, and also enable multi-iteration concurrency in pagerank computation. The combination of all of the above methods is the STICD algorithm. [sticd] For dynamic graphs, unchanged components whose ranks are unaffected can be skipped altogether.
The Building Blocks of QuestDB, a Time Series Databasejavier ramirez
Talk Delivered at Valencia Codes Meetup 2024-06.
Traditionally, databases have treated timestamps just as another data type. However, when performing real-time analytics, timestamps should be first class citizens and we need rich time semantics to get the most out of our data. We also need to deal with ever growing datasets while keeping performant, which is as fun as it sounds.
It is no wonder time-series databases are now more popular than ever before. Join me in this session to learn about the internal architecture and building blocks of QuestDB, an open source time-series database designed for speed. We will also review a history of some of the changes we have gone over the past two years to deal with late and unordered data, non-blocking writes, read-replicas, or faster batch ingestion.
Learn SQL from basic queries to Advance queriesmanishkhaire30
Dive into the world of data analysis with our comprehensive guide on mastering SQL! This presentation offers a practical approach to learning SQL, focusing on real-world applications and hands-on practice. Whether you're a beginner or looking to sharpen your skills, this guide provides the tools you need to extract, analyze, and interpret data effectively.
Key Highlights:
Foundations of SQL: Understand the basics of SQL, including data retrieval, filtering, and aggregation.
Advanced Queries: Learn to craft complex queries to uncover deep insights from your data.
Data Trends and Patterns: Discover how to identify and interpret trends and patterns in your datasets.
Practical Examples: Follow step-by-step examples to apply SQL techniques in real-world scenarios.
Actionable Insights: Gain the skills to derive actionable insights that drive informed decision-making.
Join us on this journey to enhance your data analysis capabilities and unlock the full potential of SQL. Perfect for data enthusiasts, analysts, and anyone eager to harness the power of data!
#DataAnalysis #SQL #LearningSQL #DataInsights #DataScience #Analytics
2. Qike Li, A. Grant Schissler, Vincent Gardeux, Ikbel Achour, Colleen Kenost,
Joanne Berghout, Haiquan Li, Hao Helen Zhang, Yves A. Lussier
N-of-1-pathways MixEnrich: advancing precision
medicine via single-subject analysis in discovering
dynamic changes of transcriptomes
3. Outline
• Background
• Methods: N-of-1-pathways MixEnrich
• Results:
• Simula@on Study
• Valida@on Case Study
• LimitaAons
• Take home message
We developed a new and effecAve method to idenAfy
dysregulated pathways within a single paAent.
5. Problem statement
Population
Case Control
Average / Common
Gene signature / pathway signature
Transcriptome
Analysis
DEG+Enrichment1
GSEA2
1Beißbarth, T. and Speed, T. Bioinforma)cs 2004; 2Subramanian A. et. al PNAS 2005
6. Problem statement
Population
Case Control
Average / Common
Gene signature / pathway signature
Transcriptome
Analysis
DEG+Enrichment1
GSEA2
1Beißbarth, T. and Speed, T. Bioinforma)cs 2004; 2Subramanian A. et. al PNAS 2005
cohort-based methods
7. Problem statement
Population
Case Control
Average / Common
Gene signature / pathway signature
Control / Case
Paired Samples
Individual
Common
signature
Individual
signature
Transcriptome
Analysis Transcriptome
Analysis
DEG+Enrichment1
GSEA2
1Beißbarth, T. and Speed, T. Bioinforma)cs 2004; 2Subramanian A. et. al PNAS 2005
8. Problem statement
Population
Case Control
Average / Common
Gene signature / pathway signature
Control / Case
Paired Samples
Individual
Common
signature
Individual
signature
Transcriptome
Analysis Transcriptome
Analysis
DEG+Enrichment1
GSEA2
1Beißbarth, T. and Speed, T. Bioinforma)cs 2004; 2Subramanian A. et. al PNAS 2005
MixEnrich
17. Outline
• Background
• Methods: N-of-1-pathways MixEnrich
• Results:
• Simula@on Study
• Valida@on Case Study
• LimitaAons
• Take home message
We developed a new and effecAve method to idenAfy
dysregulated pathways within a single paAent.
23. Gene Set Enrichment
Gene set
knowledge
(GO, KEGG)
|log2
FC|
DEG
N = 1
Healthy
tissue
Tumor
tissue
Two samples of Transcriptome
(single subject)
DEG Discovery: Mixture Model
(single subject)
Gene Set Enrichement
(single subject)
Density
Unaltered genes
Dysregulated genes
Absolute log Fold Change
Subject GO-BPID Dysregulated p-value
M.Jones GO:0000018 Yes 0.0010
M.Jones GO:0000060 Yes 0.0015
M.Jones GO:2001244 No 0.0547
Identify pathways enriched with
dysregulated genes via FET
24. Gene Set Enrichment
Contingency table for Fisher’s Exact Test
dysregulated genes unaltered genes
genes in target pathway d M – d
genes not in target pathway D - d N - M - D + d
25. SimulaAon Parameters
Parameter Description of the parameter Values tested
p.S Number of mRNAs randomly chosen in the target pathway {5, 10, [15, 490] by step 25, 500}
p.dPct Percentage of dysregulated mRNAs in the target pathway {(0, 1] by step 0.05}
p.FC Fold change of mRNAs in the target pathway {1.3, 1.5, 2}
p.upPct Percentage of up-regulated mRNAs among dysregulated
mRNAs in the target pathways
{0, 0.1, 0.2, 0.3, 0.4, 0.5}
bg.FC Fold change of dysregulated background mRNAs {0, 1.3, 1.5, 2}
bg.dPct Percentage of dysregulated mRNAs as noise in the
background
{0, 0.01, 0.05, 0.1, 0.2}
• 107,640 scenarios of pathway dysregulaAon were invesAgated
26. Outline
• Background
• Methods: N-of-1-pathways MixEnrich
• Results:
• Simula@on Study
• Valida@on Case Study
• LimitaAons
• Take home message
We developed a new and effecAve method to idenAfy
dysregulated pathways within a single paAent.