ICSI as it is presently performed is far from an ideal solution because the selection of sperm is based on the judgement of an embryologist, who is looking for the most normal appearing sperm available.
Sperm DNA Fragmentation (Oxidative stress, DNA damage and apoptosis, Test, Techniques, Relation to other semen parameters, Relationship to leucocytes, Relation to ICSI outcomes, Clinical applications, significance and limitations)
Sperm DNA Fragmentation (Oxidative stress, DNA damage and apoptosis, Test, Techniques, Relation to other semen parameters, Relationship to leucocytes, Relation to ICSI outcomes, Clinical applications, significance and limitations)
in this lecture i tried to summarize the most important normal morphological features of oocyte \ Follicle( including process of oogenesis and female mammalian meiosis) then i tried to summarize abnormal oocyte morphology
It was while performing SUZI that a single spermatozoon accidentally penetrated into the oolemma and provided the hint that a direct sperm injection would be more efficient.
1st successful birth by ICSI took place on Jan 14, 1992.
EMBRYO QUALITY ASSESSMENT, WHICH TO SELECT? Rahul Sen
Traditional embryo evaluation systems are simple, non-invasive, cost-effective & mainstay in majority of IVF laboratories. Embryo selection based on combinations of morphology scores at different stages of embryonic development with time may be more effective
In-vitro fertilization (IVF) is a process by which oocytes are fertilized by sperm outside the women’s womb, in vitro. It still represents one of the most exciting modern scientific developments and continues to have a tremendous impact on
people's lives.
Here, we will discuss all about the embryo development inside the dish.
Also we discuss which embryo to choose for transferring into female's uterus.
Sperm Function Tests are the keystones of evaluating functional condition of sperms. The fertility potential of a sperm will be decided not only with the number & motility but with the functional competence which is of utmost importance.
Optimizing sperm quality in High DNA Fragmentation Index (DFI) cases through specialized preparation techniques. For more information call: +91 9418127128
in this lecture i tried to summarize the most important normal morphological features of oocyte \ Follicle( including process of oogenesis and female mammalian meiosis) then i tried to summarize abnormal oocyte morphology
It was while performing SUZI that a single spermatozoon accidentally penetrated into the oolemma and provided the hint that a direct sperm injection would be more efficient.
1st successful birth by ICSI took place on Jan 14, 1992.
EMBRYO QUALITY ASSESSMENT, WHICH TO SELECT? Rahul Sen
Traditional embryo evaluation systems are simple, non-invasive, cost-effective & mainstay in majority of IVF laboratories. Embryo selection based on combinations of morphology scores at different stages of embryonic development with time may be more effective
In-vitro fertilization (IVF) is a process by which oocytes are fertilized by sperm outside the women’s womb, in vitro. It still represents one of the most exciting modern scientific developments and continues to have a tremendous impact on
people's lives.
Here, we will discuss all about the embryo development inside the dish.
Also we discuss which embryo to choose for transferring into female's uterus.
Sperm Function Tests are the keystones of evaluating functional condition of sperms. The fertility potential of a sperm will be decided not only with the number & motility but with the functional competence which is of utmost importance.
Optimizing sperm quality in High DNA Fragmentation Index (DFI) cases through specialized preparation techniques. For more information call: +91 9418127128
ADVANCED SPERM PREPARATION TECHNIQUES.pptxRahul Sen
IN IVF SPERM PREPARATION PLAYS AN IMPORTANT ROLE AS EMBRYO OUTCOMES IS 50% DEPENDENT ON ONE OF THE MAJOR GAMETE THAT IS SPERM. SPERMS POST EJACULATE SHOULD BE HANDLED PROPERLY AND MUST BE SEPARATED FROM SEMINAL PLASMA WELL ENOUGH THAT ONLY MORPHOLOGICALLY MOTILE HEALTHY SPERMS ARE AVAILABLE FOR FERTILIZATION. OVER MANY YEARS CONVENTIONAL METHODS OF SPERM PREPARATIONS WERE CONSIDERED IN ROUTINE, MANY ADVANCED METHODS ARE STILL NOT EXPLORED WHICH HOLDS MORE EFFICACY OVER CONVENTIONAL METHODS OF SPERM PREPARATION.
Fertilization is a process where male and female gametes fuse to create zygote and further leads to embryonic development. During in vitro there happens the conditions when male and female gametes unable to fuse and fails to produce zygote, which is a very painful condition for Reproductive Scientists working inside IVF lab. this presentation highlights brief about how this incidence occurs and ways to reduces it. HAVE A HAPPY READ <3
INTRACYTOPLASMIC MORPHOLOGICALLY SELECTED SPERM INJECTION is a technique used in IVF treatment to examine and select sperm using a high-magnification digital imaging microscope for microinjection into the egg.
New Sperm Selection Techniques (IMSI, PICSI) To Select Healthy SpermIVF Treatment
It is estimated that 15% of couples seek help to overcome infertility problems. One-third of infertility problems are caused by the male factor. The remaining two-thirds are women-related problems and unclear causes, and appear to be evenly distributed between male and female components.
Normal fertile couples of reproductive age have a conception rate of 20% to 25% per month, with more than 90% conceiving within 1 year.
Male factor infertility is involved in approximately 50% of infertile couples.
In 30% of the cases, an abnormality is discovered solely in the man.
As many as 2% of all men will exhibit suboptimal sperm parameters.
Newer Modalities for Semen Testing | Male Infertility | Seeds Of InnocenceSOI Delhi
Male Infertility is a inability that causes pregnancy in a female fertile. Male infertility is commonly due to Low sperm Count. Soi provides best male infertility treatment in delhi, ghaziabad - India. For more information call us 9810350512
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Ethanol (CH3CH2OH), or beverage alcohol, is a two-carbon alcohol
that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
mortality, and public health costs than all illicit drugs combined. The
5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
disorder called alcohol use disorder (AUD), with mild, moderate,
and severe subclassifications (American Psychiatric Association, 2013).
In the DSM-5, all types of substance abuse and dependence have been
combined into a single substance use disorder (SUD) on a continuum
from mild to severe. A diagnosis of AUD requires that at least two of
the 11 DSM-5 behaviors be present within a 12-month period (mild
AUD: 2–3 criteria; moderate AUD: 4–5 criteria; severe AUD: 6–11 criteria).
The four main behavioral effects of AUD are impaired control over
drinking, negative social consequences, risky use, and altered physiological
effects (tolerance, withdrawal). This chapter presents an overview
of the prevalence and harmful consequences of AUD in the U.S.,
the systemic nature of the disease, neurocircuitry and stages of AUD,
comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
pharmacotherapies for AUD.
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Anti ulcer drugs and their Advance pharmacology ||
Anti-ulcer drugs are medications used to prevent and treat ulcers in the stomach and upper part of the small intestine (duodenal ulcers). These ulcers are often caused by an imbalance between stomach acid and the mucosal lining, which protects the stomach lining.
||Scope: Overview of various classes of anti-ulcer drugs, their mechanisms of action, indications, side effects, and clinical considerations.
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
2. DAY 0 1 2 3 4 5
early development later development
• Oocyte activation factor
• Organelle Factors
• Membrane – cytosolic
factors
• Cytoplasmic Factors
• Nuclear Factors
• DNA-fragmentation - integrity
Impact of sperm over embryo development
EMBRYONIC DEVELOPMENT IMPLANTATION RATES PREGNANCY RATES MISCARRIAGE
3. Why sperm cells are interesting…???
• Almost always in
Excess: not a
limiting factor
• Genetic
uniqueness in
each sperm
provides a wide
variety of
phenotype
(Wang J, Fan HC, Behr B, Quake SR.
The Cell. 2012 )
• During in vivo
we do not know
how one sperm
is selected and
on what basis
5. In vitro sperm selection
• Semen examination
• Morphology assessment
• Sperm preparation methods
• Sperm Function tests
• Sperm selection in viscous medium
• Advanced methods of sperm selection
6. Semen Examination
• Hallmark for fertility evaluation in
male
• Provides more detailed
information on routine basis
• Abnormalities in sperm
production or function, alone or
in combination with other factors,
account for 30–50% of all cases
of infertility outcomes(W.H.O, 2010).
8. Cut off reference values for sperm parameters in
consecutive WHO manuals
9. Sperm morphology
• In the 80’s, pioneer studies on sperm
morphology (Tygerberg’s, SA & Kruger,
USA) correlated the architecture of
spermatozoa with IVF outcomes &
suggesting importance.
• Predictive value of sperm morphology
for fertilization and pregnancy
outcomes in IVF treatments. Parinaud
et al., 1993; Ombelet et al., 1997;
Eilish T. et al., 1998
• Several ways to analyze sperm
morphology
• All morphological measurements to be
made using fixed stained smears
(Papaniculao OR Diff-Quick OR Shorr-
stain)
10. Krugers et. Al., 1988
HEAD
SMOOTH, OVAL CONFIGURATION; LENGTH 4-6um, DIAMETER-2.5-3.5 um,
ACROSOME MUST CONSTITUTE 40-70% OF SPERM HEAD
NECK/
MIDPIECE
SLENDER, AXIALLY ATTATCHED, 1.5 TIMES OF HEAD LENGHT, SLIGHTLY
THICKER THAN TAIL
TAIL SINGLE, UNBROKEN, STRAIGHT, WITHOUT KINKS OR COILS
KRUGERS STRICT CRITERIA
NORMAL SPERM
ABNORMAL SPERMS
AMORPHOUS
HEAD
NECK
DEFECT ABNORMAL ACROSOME FORMS
11.
12. Semen preparation
• Semen composed of
❖ Mixture of secretions, other cells and many anti capacitating factors
❖ Risk of oxidative & osmotic damage in vitro
❖ Needed to separate best motile and morphologically normal sperm
Classical sperm preparation methods are based on motility & counts.
·Migration ·Swim Up ·Gradient centrifugation
13. SPERM FUNCTION TESTS
HYPO-OSMOTIC SWELLING TEST
• Based on the principle that
viable spermatozoa have intact
membranes.
• Characteristics: Swelling of the
cytoplasmic space and curling
of the sperm tail.
• Normal test results: >58%
curling tail is considered normal.
• Test may be used to aid
selection of viable spermatozoa
for use in ICSI, especially in
those cases of severe
asthenospermia.
DNA FRAGMENTATION INDEX
• Susceptibility of DNA damage in vitro is High
• Important causes of reduced fertility
potential
• Useful marker for sperm Function (Aitken et
al., 2010)
• High sperm DNA fragmentation values have
negative impact on ART outcomes (lopez G
et al., 2013 Simon Let. Al., 2010)
• Various tests available to analyze sperm DFI
on the basis of Strand Breaks, Susceptibility
to Denaturation, Chromatin Condensation
• Unclear thresholds, less sensitive,
labor intensive & variable protocols
14. Sperm Motion
• Not easy to select sperm
according to morphological
characteristics while they are
in motion under culture media.
• Can be accomplished by
observing its shape, light
refraction and motion pattern
in viscous medium
• The viscous medium
decelerate spermatozoa
allows evaluation in its
tridimensional motion pattern,
permitting morphological
assessment.
PVP
MOPS
17. IMSI
• Bartoov et al introduced ICSI using high-power
differential interference contrast optics, allowing
visualization of sperm at ultra high magnification & in
real time.
• Fine morphological integrity of human sperm nuclei is
positively associated with fertilization and pregnancy
rates.
• The strict descriptive criteria for normally shaped
nuclei (Bartoov et. Al., 2001, 2003)
ROUTINE ICSI 200x-400x IMSI 7000x
18. Criteria for morphologically normal nucleus
-Smooth, Symmetric & Oval shape
-Nucleus- homogeneous, no extrusions, no invaginations,
- maximum of one vacuole less than 4% of the nuclear area.
Bartoov et al., 2001
(MSOME)Motile Sperm Organellar Morphology Examination
Normal sperms Abnormal sperms
19. Study Significant Findings (IMSI vs. ICSI)
Souza Setti et al, 2010 Significantly higher implantation and pregnancy, significantly
lower miscarriage rate in IMSI group
Figueira et al, 2010 Significantly lower aneuploidy rate in IMSI group
Wilding et al, 2010 64.8% of sperm selected in ICSI had significant DNA
fragmentation. Embryo quality, pregnancy and implantation
rate higher in IMSI group
Monquat et al, 2010 Swim up sperm have less nuclear vacuolation than DGS
Vanderzwalmen et al,
2008
Presence of nuclear vacuoles reduces PR, higher pregnancy
rate in IMSI group. Proposed sperm grading scheme
Antinori et al 2008 +ve correlation for pregnancy and miscarriage in OAT group
Bartoov et al, 2002 Significantly higher pregnancy rate in IMSI group
Bartoov et al, 2002 Describe MSOME. Sperm with vacuole occupying >4% of
nuclear area abnormal and not used for injection
Bartoov, 2001 First reported IMSI. Magnification x6000.
21. PICSI- Physiological ICSI
• In the process of fertilization, the sperm
bind to the hyaluronic acid (HA) present in
the cumulus oophorus by HspA2 protein,
with hyaluronidase activity that induces
acrosome reaction.
• The PICSI device, a dish similar to ICSI dish,
contains microdots of hyaluronan hydrogel
which needs to be hydrated by media
before ICSI.
• Selectively binding of sperm to the culture
dish shows:
More viability,
Non DNA-fragmented, and
with lower rates of aneuploidies.
22. Selection of HA binding spermatozoa
Incubation, RT, 10
min
Add sperm to the hyaluronan
microdot
Gentle aspiration of a bound
spermatozoa
After 15 min, the proportion of hyaluronan-bound spermatozoa, that exhibited vigorous tail
beating, were assessed versus the unbound motile spermatozoa
26. Advanced sperm selection techniques are
hypothesized to improve ART outcome through
the selection of sperm with a variety of
“beneficial characteristics.”
Although individual small studies have suggested
that these techniques have clinical benefit, there
remains less comprehensive review of
randomized controlled trials (RCTs).
The current review needs more studies to be
included, so the results can better guide clinical
practice and further application.
27. The gold standard of sperm function
remains the ability to fertilize an oocyte
in vitro.
Abnormal shaped sperm have an
increased chances of poor outcomes.
Proper semen examination, sperm
preparation and wise sperm selection
technique recommended in ART.
The onus for sperm selection shifted
from counts, motility to other
parameters.
28. The Key to everything is Patience.
You Get the Chicken by Hatching the egg, not by smashing it.
- Arnold H Glasow
Thanking You ALL…