viernes, 30 de octubre de 2015

ICSI or IVF?

ICSI or IVF?

 

These two terms are very frequently mentioned during each one of your visits to the fertility clinic. Both of them imply different techniques using the same gametes, sperm and egg.

 

ICSI stands for Intra Cytoplasmic Sperm Injection. This is a technique, which takes one sperm inside a needle, and the sperm is then injected into the egg.

 

IVF stands for the In Vitro Fertilization technique, which is the placement of a sperm sample on a dish containing one or more eggs. This way the sperm will naturally penetrate de egg.

 

Both techniques are complex and require to be performed in an embryology laboratory.

 

Doctors usually have different criteria to decide if a patient goes to ICSI or IVF. Some of the criteria to do ICSI are:

 

  • Poor quality sperm. This can be shown either in the quantity, motility or morphology.
  • Patients over 40 years old
  • Prior IVF failures
  • Borderline sperm DNA fragmentation

 

Criteria to consider IVF:

 

  • Good quality sperm. This has to be shown at least in all of the criteria of motility, quantity, and morphology.
  • Patients under 40 years old
  • Sperm DNA fragmentation under 25%

 

Your fertility specialist will let you know about the results of the analysis and the criteria you have to either undergo ICSI or IVF.

 

 

Sometimes a split case of IVF/ICSI can be performed, and in most cases where the sperm quality is borderline, or there is unexplained infertility there is a good chance of success. A study shows that performing ICSI on at least some of the oocytes will avoid unnecessary fertilization failure in patients with borderline semen (1)(2).

 

Several serious studies have not shown any difference on embryo quality obtained with ICSI or FIV. Some of them concluded: embryo quality does not seem to be influences by the mode of fertilization (IVF or ICSI) (3)...Continue reading

The post ICSI or IVF? appeared first on Fertility Online

jueves, 29 de octubre de 2015

Surrogacy. The true gesture of kindness.

Surrogacy. The true gesture of kindness.

There is a whole lot of information regarding this procedure online. There are books informing patients and doctors experiences with it. Leaflets can be found in fertility clinics explaining about it. However, we do receive many weekly emails asking about the procedure, what does involves, how is it done, the risks, tests needed, etc., and it makes me think there is still too much more to be known.

I can start by saying surrogacy is a kindness gesture a human can shown to life. It is the way a woman collaborates with other in order to make possible the growth of a baby. A woman gets pregnant with the future known intention of handing over the child to someone else after gibing birth. It is usually done using someone else’s gametes.

 

Today several patients need surrogacy, because of many reasons, they might not have uterus, they have a disease, they are a same sex couple, etc. A team of professional experts in surrogacy evaluates the need of the procedure and will advice the steps to follow next. Usually patients need to undergo an IVF procedure to obtain viable embryos, which will be frozen or transferred in fresh to the surrogate’s uterus. It is important to consider the legal aspects of surrogacy because they vary in different areas of the World. Some patients prefer to look in countries where surrogacy is allowed/legal or non-regulated, as they can benefit of not having to go through the adoption procedure which can take months.

 

I do work with a surrogacy team of experts to provide patients with the information of the best options of treatment. Costs also vary depending on the location, it can cost between 70,000 USD even to 150,000 USD in countries like USA. India 50,000 – 60,000 USD, Thailand 60,000 – 40,000 USD, Ukraine 70,000 – 50,000 USD, Mexico 50,000 USD, and Venezuela 30,000 USD (including the IVF procedure).

 

In many countries surrogacy is not illegal, but there are no regulations to support it or not. For that reason some patients chose to go to countries where they feel it is safer, even if is more expensive. Other patients take the low cost option...Continue reading

The post Surrogacy. The true gesture of kindness. appeared first on Fertility Online

miércoles, 28 de octubre de 2015

Fertility Spa.

Fertility Spa.

It will be the ultimate, luxurious relaxing experience.

As a fertility specialist I always though there was a gap in the field for patient’s wellbeing. I used to treat patients that underwent fertility procedures and asked me if there was a range of products dedicated to anxiety, stress-management and to help them prepare for the procedure, during the procedure and even after the procedure was performed. I decided to look for alternatives and none of them seemed to work well with the intention we had, which was offering the patient relaxation and wellbeing.

There is no need to buy expensive products with claims of increasing the chances of success, or to undergo stressful therapies for getting miraculous results.

The patient’s needs are specific and vary with each step of their fertility procedure. It is different a patient who is just coming to the clinic for consultation than one already being prepared for a procedure, and one that finished the procedure. The anxiety levels are different and their needs also are.

 

When patients come to the clinic they seem to have many questions waiting for the right answers. If they do not get the answers they wish, their anxiety and stress levels rocket. And 99% of patients feel the same way.

There are several interesting articles published online and serious magazines regarding this topic. Web MD says: “While doctors may not know the exact links between stress and fertility, a series of studies shows the impact is hard to ignore”. Also Human Reproduction’s magazine has good articles like this one: The impact of lifestyle factors on reproductive performance in the general population and those undergoing infertility treatment. It’s conclusion is: “Physiological stress may reduce female reproductive performance in various ways...Continue reading

The post Fertility Spa. appeared first on Fertility Online

sábado, 24 de octubre de 2015

Biological and Non-biological causes of Infertility

Biological and Non-biological causes of Infertility

 

There is an extensive information regarding the main causes of infertility. There are biological physical causes related to our bodies and non-biological causes related to our energy and well-being.

Regarding to biological causes we can separate them in female and masculine causes.

The female causes are:

– Ovulation disorders: these ones can be related to hormonal disorders, which prevents the egg to be released from the follicle of the ovary. These hormonal disorders may be related to genetic predisposition, disorders in our diet, tumours, injuries. Causes of these disorders can be related to polycystic ovarian disease, hyperprolactinemia, hypogonadotrophic hypogonadism, hypergonadotrophic hypogonadism.

– Endometriosis: which is presence of endometrial tissue outside the uterus. This can be painful and affect the function of the ovaries.

– Fallopian tube damage or blockage:..Continue reading

The post Biological and Non-biological causes of Infertility appeared first on Fertility Online

jueves, 22 de octubre de 2015

What is fertility online for?

What is fertility online for?

 

Through this blog I will communicate the discoveries I’ve made during my fertility experience. It has been a broad experience fulfilled with new discoveries, understanding and respect for the field of life.

I am sure many of the patients coming here will find comfort to several questions they may have, as a way to learn to understand what is the best way to prepare for a fertility treatment.

There is too much information out there, textbooks, magazines, internet; they all are a rich source of information. However, this information might be misinterpreted or confusing for most patients, even discouraging. There is no need to feel that way if you can find a resource with most of the answers to basic questions.

We all feel a negative sensation when something is not working properly in our bodies. We are afraid of changes and trying new things. But is important to learn it does not have to be so difficult. It can be accomplished.

What is life? it is the opportunity we have to live experiences. And that is the opportunity we all are waisting at not understanding the meaning of our own lives. Are you challenged in the fertility area? live it, face it and learn from it. There is always something to be learned.

I used to be a fundamentalist scientist, skeptical mind, motivated by pure science. The science that can be demonstrated...Continue reading

The post What is fertility online for? appeared first on Fertility Online

lunes, 19 de octubre de 2015

A bridge between Worlds. Witnessing life and death.

A bridge between Worlds. Witnessing life and death.

A bridge between Worlds. Witnessing life and death. By Lucy Coleman, MD.

How to describe the feeling of witnessing what I call “the bridge” between dimensions and realizing that feeling was always there, waiting to be explored further and understood in a deeper spiritual sense. The feeling is unimaginable. And this was my experience.

I am a doctor, specialist in Reproductive Medicine, a scientist, a former believer that everything could be demonstrated, even the things that have not being demonstrated yet, because their time to be demonstrated it is about to come. Now I know everything has a time.

I dedicated my entire life to science and medicine, believing that science had most of the answers. And most times found the explanation I was looking for, because it seemed they had the correct and scientific logic for most of the phenomena occurred in nature. My beliefs were that we had all the tools to find answers, explanations, reasons and logic. That was a fact until now, because realized I was far from being right. And the true was about to come to me. For some reason it was shown to me.

 

In Reproductive Medicine most events are amazing. From the beginning of the formation of each gamete, to the fertilization of the eggs, developing of the embryo, division, implantation, growing of the fetus, birth, every event is amazing. Research in this field had shown science is capable to find answers for most of the events happening during each step, and even go further to find explanations to events that before were unexplained. Scientist and observers have been looking at these events during centuries...Continue reading

The post A bridge between Worlds. Witnessing life and death. appeared first on Fertility Online

sábado, 17 de octubre de 2015

Fertility treatments for gays, lesbians and unmarried persons. Is it a matter of ethics?

Fertility treatments for gays, lesbians and unmarried persons. Is it a matter of ethics?

In occasions we have to make decisions that will definitely impact the future of the world in many ways. Some people argued that being gay comes with genetics. There is a great article about this topic I would like to refer to ( In this study Kenrick Vezina makes a pretty good work at understanding the claims of some geneticists regarding genetics homosexuality. Michael Bailey, a geneticists from Northwestern University and Kevin Mitchell from Trinity College in Dublin claimed homosexuality has a very strong genetic component linked to the Y chromosome.

For what I understood in their work there is a difference between sexual preference and sexual orientation, being the later related to the Y chromosome. Preference is whether you are attracted to males or females, however orientation is the one linked to that Y chromosome and it is moderately heritable. There are regions on this chromosome that influence the development of sexual orientation in men. They say there is no universal path to homosexuality across all people and heterosexuality is not a single default state. For such, there should be a set of other genes that work together and influence the sexual orientation. The conclusion of this work: homosexuality is not a choice, the same as heterosexuality it is not either. It should not be labeled as a disorder. I encourage you to have a look at that article and make your own conclusions.

Where are those people who labeled homosexuality as a disease? And what is the reason they do not like it?

I have a great story. I have these great friends. They are both from well-educated backgrounds, both professionals and successful...Continue reading

The post Fertility treatments for gays, lesbians and unmarried persons. Is it a matter of ethics? appeared first on Fertility Online

viernes, 16 de octubre de 2015

“The non-biological causes of Infertility”

“The non-biological causes of Infertility”

 

To read this, I recommend you to have a look at some of my other articles, that way it will be easier to understand. I need you to have an open mind.

The article “Biological and non-biological causes of infertility” there contains explanations about all the biological causes. However, even though many patients present with biological causes, an increased majority are aware there is something else involved, and is not biological.

Once the non-biological causes are acknowledge, it will be easier to understand.

We humans are composed of matter. There is matter everywhere inside us. Matter is the connection with the physical world we live in. As we are submerged in our material or physical world there are ways to connect with the non-material world. It is possible to feel that connection with the non-physical world in several ways. Most people do not know this, or they prefer to ignore it because it makes it easier for their lives. I was one of them, one of the most skeptical of all, used to ignore there was another realm we can connect to in ways we are capable of receive Love and Light.

There are several non-biological causes of infertility, and they are related to our selfs and souls. Through them we can establish this connection with the rest of the Universe. They are difficult to understand at the beginning. It is hard to get the fact they affect us, because most times we are not even aware they are present.

We can summarise some of the reasons our selfs and souls get affected:

1...Continue reading

The post “The non-biological causes of Infertility” appeared first on Fertility Online

lunes, 12 de octubre de 2015

Principles of Oocyte and Embryo Donation

Principles of Oocyte and Embryo Donation

Principles of Oocyte and Embryo Donation | Review by Lucy Coleman.

Interesting book for professional practicing in human reproduction
Amazon Review: This is the definitive reference on the medical, surgical, legal, and ethical aspects of establishing and maintaining an office-based egg donation program. The editor has assembled an international list of authors with known expertise in this rapidly expanding field. The clinical procedures are clearly depicted in the book`s many line drawings and photographs.

Category: Books

..Continue reading

The post Principles of Oocyte and Embryo Donation appeared first on Fertility Online

The Little Book of MEDICAL Breakthroughs Hardcover – 2010

The Little Book of MEDICAL Breakthroughs Hardcover – 2010

The Little Book of MEDICAL Breakthroughs Hardcover – 2010 | Review by Lucy Coleman.

Comment: Useful and interesting little book that covers interesting facts we sometimes forget that exists today, and they are possible thanks to our amazing researchers.
Amazon Review: professional and everyday resources in healthcare

Category: Books

..Continue reading

The post The Little Book of MEDICAL Breakthroughs Hardcover – 2010 appeared first on Fertility Online

The Science of Interstellar 1st Edition

The Science of Interstellar 1st Edition

The Science of Interstellar 1st Edition | Review by Lucy Coleman.

 
Comment: I watch the movie Interstellar and believe it is the best movie ever. I had to watch the movie several times to understand most of the physics involved on it. When I got this book, Kip Thorne explained everything in so much detail, that I understood absolutely everything.
Amazon Review: A journey through the otherworldly science behind Christopher Nolan’s highly anticipated film, Interstellar, from executive producer and theoretical physicist Kip Thorne.

Interstellar, from acclaimed filmmaker Christopher Nolan, takes us on a fantastic voyage far beyond our solar system. Yet in The Science of Interstellar, Kip Thorne, the physicist who assisted Nolan on the scientific aspects of Interstellar, shows us that the movie’s jaw-dropping events and stunning, never-before-attempted visuals are grounded in real science. Thorne shares his experiences working as the science adviser on the film and then moves on to the science itself. In chapters on wormholes, black holes, interstellar travel, and much more, Thorne’s scientific insights―many of them triggered during the actual scripting and shooting of Interstellar―describe the physical laws that govern our universe and the truly astounding phenomena that those laws make possible.

Interstellar and all related characters and elements are trademarks of and © Warner Bros. Entertainment Inc...Continue reading

The post The Science of Interstellar 1st Edition appeared first on Fertility Online

Bob Harper: Pure Burn Super Strength

Bob Harper: Pure Burn Super Strength

Bob Harper: Pure Burn Super Strength | Review by Lucy Coleman.

This is a great routine for people looking to loose weight on a healthier way
Amazon Review: Bob Harper: Pure Burn Super Strength
No muscle goes untrained. A Get Cut Revolution for the upper body, lower body and core. 35 power surging moves, set to a dynamic pace, delivering an intensified burn that works to aggressively increase metabolism, attack fat, and exhaust calories so you lose weight and gain pure muscle. Get the results you have been looking for.

Category: Books

..Continue reading

The post Bob Harper: Pure Burn Super Strength appeared first on Fertility Online

Skinny Meals: Everything You Need to Lose Weight-Fast! (Skinny Rules)

Skinny Meals: Everything You Need to Lose Weight-Fast! (Skinny Rules)

Skinny Meals: Everything You Need to Lose Weight-Fast! (Skinny Rules) | Review by Lucy Coleman.

 
Comment: This is exactly a how-to-book. It is a continuation of the first book about the skinny rules and covers again his skinny rules with recipes and ways to learn how to stick to those. As quoted in amazon: In The Skinny Rules, super-motivator Bob Harper introduced the twenty nonnegotiable eating and lifestyle principles that pave the way to quick and permanent weight loss. Since then, thousands of fans asked for more guidance and inspiration! Skinny Meals answers the call, delivering 100 new Skinny Rules–abiding recipes (all of them under 350 calories!) and a month’s worth of new menu plans that will satisfy you at every meal. From an Apple Pie Shake for breakfast to Zucchini Noodles with Avocado Cream Sauce for dinner, Bob has done all the tricky calorie, protein, carb, sodium, and fiber counting so you can meet his Rules goals without even thinking about them! With easy, prepare-ahead strategies, handy shopping lists, and cooking tips, Skinny Meals is your ultimate guide to slimming down and staying fit...Continue reading

The post Skinny Meals: Everything You Need to Lose Weight-Fast! (Skinny Rules) appeared first on Fertility Online

The Skinny Rules: The Simple, Nonnegotiable Principles for Getting to Thin

The Skinny Rules: The Simple, Nonnegotiable Principles for Getting to Thin

The Skinny Rules: The Simple, Nonnegotiable Principles for Getting to Thin | Review by Lucy Coleman.

Comment: Bob Harper has been my trainer guru. A friend recommended me his book a few years ago, and my life changed. I feel I live with his rules in my head all the time. I learned to respect my body, and to think before eating anything about how much good or bad it will do for me. The great fact about this book is that covers every one of the rules with detailed explanations, this way it makes it easier to follow because we do know now what really happens when we do or eat anything. I read it all and sometimes read it again to refresh a few topics. I have recommended this book to most of my friends and they have it now.
Amazon Review: With so much conflicting weight-loss advice out there to confuse your efforts, it’s no wonder you haven’t been successful losing weight and keeping it off. But with Bob Harper, superstar trainer and co-host of NBC’s hit show The Biggest Loser as your personal authority and coach, you can and will finally shed the pounds—whether you want to lose two or two hundred!..Continue reading

The post The Skinny Rules: The Simple, Nonnegotiable Principles for Getting to Thin appeared first on Fertility Online

Answers about the Afterlife: A Private Investigator’s 15-Year Research Unlocks the Mysteries of Life after Death

Answers about the Afterlife: A Private Investigator’s 15-Year Research Unlocks the Mysteries of Life after Death

Parse error: syntax error, unexpected ‘s’ (T_STRING) in /home/colemancpanel/public_html/FERTILITYONLINE.NET/wp-content/plugins/php-execution-plugin/includes/class.php_execution.php(273) : eval()’d code on line 2

..Continue reading

The post Answers about the Afterlife: A Private Investigator’s 15-Year Research Unlocks the Mysteries of Life after Death appeared first on Fertility Online

Understanding Bioethics and the Law

Understanding Bioethics and the Law

Understanding Bioethics and the Law: The Promises and Perils of the Brave New World of Biotechnology | Review by Lucy Coleman.

xxxxxxxx
Amazon Review: In this book, Schaller provides a thorough examination of the impact of biotechnology and biomedical advances on the everyday lives of people in modern society. Individuals and institutions are increasingly faced with a growing number of critical personal and ethical decisions that present themselves at all stages of life, from birth to death. These issues include the physician-patient relationship, informed consent, confidentiality and privacy, reproductive choices, end-of-life choices, health care, drug choices, and the allocation of scarce resources such as human organs, sperm, and eggs. In the absence of policies, we turn increasingly to the courts to resolve these issues. Schaller illuminates the role of the law in bioethics controversies.

Category: Books

..Continue reading

The post Understanding Bioethics and the Law appeared first on Fertility Online

Understanding Bioethics and the Law: the promises and perils of the brave new world of biotechnology

Understanding Bioethics and the Law: the promises and perils of the brave new world of biotechnology

Comment: quoting amazon: In this book, Schaller provides a thorough examination of the impact of biotechnology and biomedical advances on the everyday lives of people in modern society. Individuals and institutions are increasingly faced with a growing number of critical personal and ethical decisions that present themselves at all stages of life, from birth to death. These issues include the physician-patient relationship, informed consent, confidentiality and privacy, reproductive choices, end-of-life choices, health care, drug choices, and the allocation of scarce resources such as human organs, sperm, and eggs. In the absence of policies, we turn increasingly to the courts to resolve these issues. Schaller illuminates the role of the law in bioethics controversies.

 

 

..Continue reading

The post Understanding Bioethics and the Law: the promises and perils of the brave new world of biotechnology appeared first on Fertility Online

sábado, 10 de octubre de 2015

10 things patients undergoing fertility treatments should not listen to.

10 things patients undergoing fertility treatments should not listen to.

 

It is already hard to decide to undergo a fertility procedure. Long waits at the clinic, facing difficult tests, questioning your lifestyle, making assumptions of the percentage of success, etc. There are so many things that we can mention here and the list is endless. However, there are recommendations I give to all my fertility patients, based on experience with other patients and based on my own experience as a fertility doctor. There are things that you need to avoid listening to once you become a fertility patient. It is highly recommended you follow my advice.

 

  1. What is your diagnose? Do you have any changes? this is a very common one when patients wait at the clinic. The room is filled with patients undergoing fertility procedures, filled with doubts and questions, and a good form of validation is to listen they have been given the same diagnose or treatment as the others. Remember, every patient is different and you might not receive the same treatment as your colleague patient waiting.

 

  1. In case you do not have a positive result you can always adopt: This is a very difficult one to face, especially because in most cases comes from family and friends looking to alleviate the suffering.

 

  1. I think you might change the clinic: If a patient has already established a good relationship and communication with their doctor it will be hurtful and difficult for him/her to listen to this recommendation. This has to be a decision that just the patient should consider, not anyone else.

 

  1. Let’s start a group chat so we can all be in touch and follow each other’s procedure: Please do not become part of a group chat to listen to everybody’s problems, treatments and results; this will definitely interfere with your own treatment and the results might be not satisfactory after all.

 

  1. You should get pregnant now because you are having IVF: How said that undergoing IVF is 100% a guarantee you will get pregnant?..Continue reading

    The post 10 things patients undergoing fertility treatments should not listen to. appeared first on Fertility Online

Biological Thermodynamics

biological_thermodynamics

Biological Thermodynamics | Review by Lucy Coleman.

I wrote an interesting article regarding thermodynamics thanks to this book. I am glad Dr. Donal Haynie took the time to make notes of so many biological events and their relationship with physics and thermodynamics. He related most of the biological events with the reason of biophysics. This book provides an introduction to the study of energy transformation in the biological sciences. He also uses basic concepts that will be easy to grasp by any medical or scientific student.
Amazon Review: This inter-disciplinary guide to the thermodynamics of living organisms has been thoroughly revised and updated to provide a uniquely integrated overview of the subject. Retaining its highly readable style, it will serve as an introduction to the study of energy transformation in the life sciences and particularly as an accessible means for biology, biochemistry and bioengineering undergraduate students to acquaint themselves with the physical dimension of their subject. The emphasis throughout the text is on understanding basic concepts and developing problem-solving skills. The mathematical difficulty increases gradually by chapter, but no calculus is required. Topics covered include energy and its transformation, the First Law of Thermodynamics, Gibbs free energy, statistical thermodynamics, binding equilibria and reaction kinetics...Continue reading

The post Biological Thermodynamics appeared first on Fertility Online

viernes, 9 de octubre de 2015

Reproductive Endocrinology and Infertility: The Requisites in Obstetrics & Gynecology

reproductive endocrinology and infertility the requisites in obstetrics gynecology

Reproductive Endocrinology and Infertility: The Requisites in Obstetrics & Gynecology | Review by Lucy Coleman.

This is my favourite book in human reproduction. It is very concise, complete and explains the exact subjects that every specialist in human reproduction needs to know. I carry it with me everywhere. The section about steroids and prostaglandins is really great and helped me understand about their receptors and the role of each one of them in every tissue of the human body.
Amazon Review: During the last decade, health care providers have made great strides in the diagnosis and treatment of infertility-a condition that affects 50-80 million people worldwide. This first volume in the new Requisites in Obstetrics and Gynecology Series thoroughly examines every aspect of reproductive endocrinology and infertility from normal menstrual cycle and pubertal development, through to management of a full range of common pathologic conditions and the role of human sexuality in infertility management. Given its importance in modern treatment, assisted reproductive technologies are also addressed. This text, while comprehensive in its scope, is also succinct and user-friendly in format, making it an ideal choice for those who need concise, authoritative guidance at their fingertips.

Category: Books

..Continue reading

The post Reproductive Endocrinology and Infertility: The Requisites in Obstetrics & Gynecology appeared first on Fertility Online

A Textbook of in Vitro Fertilization and Assisted Reproduction

a textbook of in vitro fertilization and assisted reproduction the bourn hall guide to clinical and laboratory practice

A Textbook of in Vitro Fertilization and Assisted Reproduction: the Bourn Hall Guide to Clinical and Laboratory Practice | Review by Lucy Coleman.

I trained mostly in United Kingdom and, as many specialists in the reproductive field know, it is one of the most regulated countries with respect to human reproduction. This book covers most of the protocols used in the United Kingdom, and I believe many specialists should read through and take most of the content. It is a book that includes several different protocols and laboratory settings. Having worked and several countries I know it is sometimes difficult to get used to different laboratories. After reading the book I took my own ideas of my own protocols of work, according to the Human Fertilisation and Embryology Authority and it has been the same way since. It has a new version and I believe it might be as good as this edition.
Amazon Review: This is an enlarged, updated, color-illustrated new edition of the definitive clinical reference on in vitro fertilization and assisted reproduction. It contains 37 chapters by top-ranked specialists from around the world covering every aspect of investigation and therapeutic options as taught and practiced at the world-famous Bourn Hall Clinic. Large format, double-column pages. Includes bibliographic references, procedures, protocols and information sheets, and index...Continue reading

The post A Textbook of in Vitro Fertilization and Assisted Reproduction appeared first on Fertility Online

Thermodynamics and reproduction. Where the energy comes from?

Thermodynamics and reproduction. Where the energy comes from?

How can we describe energy? Energy is a property that cannot be created or destroyed. It is also a mechanical work or heat in thermodynamic language. However, it is really difficult to describe what is energy in biological systems.

British physicist Lord Kelvin once said: “There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.”

Thermodynamics is mainly a matter of discovering and then using the principles, or laws, that govern energy transformations and working out the relationship between those principles (1).

The First Law of Thermodynamics related heat, work and internal energy. It tells us that energy can neither be created nor destroyed, despite being able to change form; the total energy of a reaction, and indeed of the universe, is constant. The First Law tells us with breathtaking generality that a boundary on the possible is a basic characteristic of our universe (2).

 

 

The Second Law of Thermodynamics makes biological processes more interesting, including the Entropy of systems. This is the measure of the order of a system, in a way of describing how molecules are arranged in space, and how these molecules change when the system change temperature, pressure, volume, etc. It is a degree of disorder or randomness. The Second Law of Thermodynamics is a principle, which states that in any cyclic process the entropy will increase or remain the same. In every natural thermodynamic process the sum of the entropies of all participating bodies is increased. So the Second Law says that no natural process can occur unless it is accompanied by an increase in the entropy of the universe. Ultimately every process that occurs in nature is irreversible and unidirectional, with the direction being dictated by the requirement of an overall increase in entropy (3).

 

 

All living organisms are highly non-equilibrium systems. A system will exhibit net change if it is not at equilibrium, even if the rate of change is imperceptible...Continue reading

The post Thermodynamics and reproduction. Where the energy comes from? appeared first on Fertility Online

Clinical Reproductive Medicine and Surgery. My Review

clinical_reproductive_medicine_and_surgery

Clinical Reproductive Medicine and Surgery. My Review by Lucy Coleman.

This is an oldest edition but it is one of my favourite ones. This book was my guide through all my learning about the scientific and medical field in human reproduction. I believe every future specialist should have it.
Amazon review: Clinical Reproductive Medicine and Surgery is the new, definitive resource in reproductive medicine. This unique text offers detailed discussion on both the medical and surgical management of reproductive disorders, as well as coverage of associated imaging modalities. Included are chapters on Reproductive Genetics, Management of Endometriosis (including interventional radiology), Ultrasonography and Sonohysterography, Preservation of Fertility, and Recurrent Pregnancy Loss. A resource every practitioner interested in Reproductive Endocrinology and Infertility needs!
Offers detailed discussion of medical and surgical management of reproductive disorders … No other text offers coverage of both medical and surgical management in one resource.
Covers gynecologic disorders that impact fertility–an important aspect of identifying fertility issues, not included in major competition
Section on basic reproductive biology … Not overly detailed — Written for a clinician to understand how to practice reproductive medicine
Section on reproductive imaging … Unique to this text – includes US and MRI of the reproductive organs
Algorithm in each chapter … 4-color throughout … Demonstrates the appropriate clinical investigation and management … Offers attractive layout and best views of surgical procedures
..Continue reading

The post Clinical Reproductive Medicine and Surgery. My Review appeared first on Fertility Online

The Reproduction Bundle: Human Preimplantation Embryo Selection. My Review

the_reproduction_bundle_human_preimplantation_embryo_selection

The Reproduction Bundle: Human Preimplantation Embryo Selection. My Review by Lucy Coleman.

Handy book that pays special attention to all the areas of human embryo development to help scientific – embryologists with the best section of embryos to be implanted. It has lots of good illustrations and comparative guides with different types of human embryos and their performance while in the embryology laboratory.
Amazon Review:
The most profound dilemma in assisted reproduction to date is the inability to recognize potentially viable embryos before their replacement into the reproductive tract. Application of increasingly advanced new technology has allowed the field of embryo evaluation to evolve rapidly and dramatically over the past five years.

Human Preimplantation Embryo Selection assembles the leaders in the field of assisted reproduction to discuss their visions of dealing with the topic of embryo selection in the light of the limitations involving the fragility of the early human embryo. The purpose of this book is to shed light on the ever-expanding techniques that are being employed and evaluated with regard to embryo selection. A comprehensive overview may guide the ART practitioner in choice of techniques and evaluation of benefits and drawbacks.

The Reproduction Bundle: Human Preimplantation Embryo Selection (Reproductive Medicine & Assisted Reproductive Techniques) (Volume 5) 1st Edition will provide an up-to-date overview and reference source:..Continue reading

The post The Reproduction Bundle: Human Preimplantation Embryo Selection. My Review appeared first on Fertility Online

My Review of the Textbook of Assisted Reproductive Techniques

My Review of the Textbook of Assisted Reproductive Techniques

My Review of the Textbook of Assisted Reproductive Techniques by Lucy Coleman.

This is a book that every student in the scientific or medical field, with high inclinations in the fertility area should have. It is very comprehensive and Dr. Gardner has paid lots of attention to several important factors involved in the laboratories of reproduction. It is handy for scientific personnel working in the embryology field, as it has good key guides of how to set up the laboratory properly.
About the Author
David K Gardner DPhil is Chair of Zoology at the University of Melbourne, Australia
Ariel Weissman MD is a senior physician at the IVF Unit, Department of Obstetrics and Gynecology. Edith Wolfson Medical Center, Holon, and Sackler Faculty of Medicine,Tel Aviv University, Israel
Colin M Howles PhD, FRSM is Vice President, Regional Medical Affairs Fertility, Global Business Unit Fertility and Endocrinology, Merck Serono. SA, Geneva, Switzerland
Zeev Shoham MD is Director, Reproductive Medicine and Infertility Unit, Department of Obstetrics and Gynecology, at Kaplan Medical Center, Rehovot, Israel

Amazon Review: The Textbook of Assisted Reproductive Techniques has become a classic comprehensive reference for the whole team at the IVF clinic. The fourth edition comes more conveniently as a set of two separate volumes, one for laboratory aspects and the other for clinical applications.

The text has been extensively revised, with the addition of several important new contributions on laboratory aspects including developing techniques such as PICSI, IMSI, and time-lapse imaging. The second volume focuses on clinical applications and includes new chapters on lifestyle factors, tailored ovarian stimulation, frozen-thawed embryo transfer, viral disease, and religious perspectives. As before, methods, protocols, and techniques of choice are presented by eminent international experts...Continue reading

The post My Review of the Textbook of Assisted Reproductive Techniques appeared first on Fertility Online

miércoles, 7 de octubre de 2015

Ovulation Calculator 2

Ovulation Calculator 2

Ovulation Calculator 2

..Continue reading

The post Ovulation Calculator 2 appeared first on Fertility Online

Ovulation Calculator

..Continue reading

The post Ovulation Calculator appeared first on Fertility Online

Ovulation Calculator

Ovulation Calculator


Introduce los siguientes datos:
Fecha de tu
última menstruación
Días de tu ciclo:
Edad: (años)
Peso: (kg)
Estatura: (cm)


Ovulation Calculator. It is all about timing...Continue reading

The post Ovulation Calculator appeared first on Fertility Online