Ask Our Doctors – Archive

Our Medical Directors are outstanding physicians that you will find to be very personable and compassionate, who take care to ensure that you have the most cutting-edge fertility treatments at your disposal. This is your outlet to ask your questions to the doctors.

19,771 Comments

  1. Dear Dr Sher!
    I am now 17 weeks pregnant through IVF. I have never been pregnant before so no miscarriage, no BFP before at all. I had very had high natural killer cells but unfortunately testing here in Hungary is not that extensive so we never found out the reason for high NK cells and it has only been tested once. I was administered intralipid infusions – 200 ml (20%) at egg retrieval and then 100ml (20%) every 2 weeks with no NK testing during the whole time. Unfortunately I am totally lost as to how long I should continue intralipid therapy. Doctors here say that usually after 12 weeks it should be ok to stop but they don’t seem to be very sure about it. How long do you think I should continue to be really on the safe side? Can it harm the baby if I continue? We have fought long for this baby and I would like to the best for him but I am not sure what is the best, continuing or stopping? Many thanks for your help in advance!

    • There is no need to continue the IL. No this will not have harmed your baby!

      Congratulations and Good Luck!!

      Geoff Sher

  2. Dear Dr. Sher – Today is Day 1 of what is meant to my FET cycle. I live in Paris and after a very hot summer and a massive leak in our apartment building, we have encountered a roach infestation. I was trying to avoid pesticides due to the fertility treatments but it’s a losing battle. Is it risky for me to fumigate now and carry on with the cycle if I leave the apartment for a few days? I am worried about the residue of pesticides and not sure what to do. Or would fumigating now and waiting until next cycle (or longer) be a better option. Am terrified that the chemicals could lead to birth defects or miscarriage. Thank you.

    • I doubt there is a problem with either course of action. However, to be absolutely safe, I would wait a month and then do the FET.

      Good luck!

      Geoff Sher

  3. Hi Dr Sher

    Thank you for getting back to me. Can I ask whether you thing 10mg prednidolone is a high enough dose for high ana and nk cells, will this dose be effective alongside intralipids

    Thank you for your time

    May

  4. Hi Dr Sher I’ve just completed my first IVF cycle which was unfortunately unsuccessful, and I would appreciate your thoughts on what I can do for my next cycle.

    Donor sperm was used due to being in a same sex relationship. I’m 36 years old, based in UK and have no health issues, my cycles are regular and AMH is 11pmol/L. I’ve previously had 5 IUI cycles, 1 in which i didn’t ovulate so it was abandoned, no positive test was achieved as a result of the 4 inseminations

    I used Norethisterone as down regulation and period arrived on schedule and I got an injection of Prostap. Gonal F used for stimulation – on Day 6 of stims a scan showed 1 very large follicle on the left ovary with 4-5 follicles measuring 10-12mm and the right ovary shows 1 quite big follicle with another 4-5 measuring 10-12mm. Another scan on Day 10 of stims showed quite a few large follicles which my consultant said may be cysts but offered no further info. I experienced some cramping and bloating at this time.

    Egg Collection happened 48 hours after that scan, I took 250mcg Ovitrelle as a trigger. 5 eggs were collected and a number of cysts were drained, no eggs were collected from the cysts. 4 of the 5 eggs fertilised, and 2 lower grade embryos were transferred on day 5. Another 250mcg Ovitrelle was given after egg collection to ‘aid implantation’. But unfortunately I got a negative HcG blood test 10 days after embryo transfer.

    I am unsure yet what my clinic will advise for my next cycle, but I was concerned why I developed so many cysts during stimulation – is there a different stimulation medication that would prevent this, or perhaps a test or change in dosage that would prevent this from happening? I’ve had minimal tests done to investigate any potential fertility issues due to not having previously tried to conceive naturally, would you advise any particular tests before my next cycle?

    Many thanks for your thoughts
    A

    • You have moderately diminished ovarian reserve and as such, very respectfully, in my opinion your protocol for stimulation needs to be revised.

      The importance of the IVF stimulation protocol on egg/embryo quality cannot be overstated. This factor seems often to be overlooked or discounted by t IVF practitioners who use a “one-size-fits-all” approach to ovarian stimulation. My experience is that the use of individualized/customized COS protocols can greatly improve IVF outcome. While no one can influence underlying genetics or turn back the clock on a woman’s age, any competent IVF specialist should be able to tailor the protocol for COS to meet the individual needs of the patient.
      Gonadotropins (LH and FSH), whether produced by the pituitary gland or administered by way of fertility drugs, have different “targeted” sites of action in the ovary. FSH targets cells that line the inner wall of the follicle (granulosa cells) and also form the cumulus cells that bind the egg to the inner surface of the follicle. Granulosa cells are responsible for estrogen production.
      LH, on the other hand, targets the ovarian connective tissue (stroma/theca) that surrounds ovarian follicles resulting in the production of male hormones such as testosterone (predominantly), androstenedione and DHEA. These androgens are then transported to the granulosa cells of the adjacent follicles in a “bucket brigade fashion”. There FSH converts testosterone to estradiol, causing granulosa cells to multiply (proliferate) and produce estradiol, follicles to grows and eggs to develop (ovogenesis) It follows that ovarian androgens (mainly testosterone) is absolutely indispensable to follicle/ egg growth and development.
      However, the emphasis is on a “small” amount of testosterone. Over-exposure of the follicle to testosterone can compromise egg development and lead to an increased likelihood of chromosomal irregularities (aneuploid) following LH/hCG-induced egg maturational division (meiosis) and compromise embryo “competency/quality.
      Ovarian androgens can also reach the uterine lining where they sometimes will compromise estrogen receptor -induced endometrial growth and development.
      Many older women and those who have diminished ovarian reserve (DOR) have increased LH activity is increased. Such women either over-produce LH and/or the LH produced is far more biologically active. Chronically increased LH activity leads to overgrowth of ovarian connective tissue (stroma/theca). This condition, which is often referred to as Stromal Hyperplasia or hyperthecosis can result in excessive ovarian androgen/testosterone production and poorer egg-embryo quality/competency, Similarly, women with polycystic ovarian syndrome (PCOS), also characteristically have Stromal hyperplasia/hyperthecosis due to chronically increased LH activity. hus they too often manifest with increased ovarian androgen production. It is therefore not surprising that “poor egg/embryo quality” is often also a feature of PCOS.
      In my opinion, the over-administration of LH-containing menotropins such as Menopur, [which is comprised of roughly equal amount of FSH and hCG which acts similar to LH)], to older women, women with DOR and those who have PCOS can also lead to reduced egg/embryo competency. Similarly, drugs such as clomiphene or Letrozole that cause the pituitary gland to release excessive amounts of LH, are also potentially harmful to egg development and in my opinion, are best omitted from IVF COS protocols. This is especially the case when it comes to older women and those with DOR, who in my opinion should preferably be stimulated using FSH-dominant products such as Follistim, Puregon, Fostimon and Gonal-F.
      Gonadotropin releasing hormone agonists (GnRHa): GnRHa such as Lupron, Buserelin, Superfact, Gonopeptyl etc. are often used to launch ovarian stimulation cycles. They act by causing an initial outpouring followed by a depletion of pituitary gonadotropins. This results in LH levels falling to low concentrations, within 4-7 days, thereby establishing a relatively “LH-free environment”. When GnRHa are administered for about 7 days prior to initiating gonadotropin stimulation (“long” pituitary down-regulation”), the LH depletion that will exist when COS is initiated, will usually be protective of subsequent egg development. In contrast, when the GnRHa administration commences along with the initiation of gonadotropin therapy, there will be a resultant immediate surge in the release of pituitary LH with the potential to increase ovarian testosterone to egg-compromising levels , from the outset of COS. This, in my opinion could be particularly harmful when undertaken in older women and those who have DOR.
      GnRH-antagonists such as Ganirelix, Cetrotide and Orgalutron, on the other hand, act very rapidly (within hours) to block pituitary LH release. The purpose in using GnRH antagonists is to prevent the release of LH during COS. In contrast, the LH-lowering effect of GnRH agonists develops over a number of days.
      GnRH antagonists are traditionally given, starting after 5th -7th day of gonadotropin stimulation. However, when this is done in older women and those (regardless of age) who have DOR, LH-suppression might be reached too late to prevent the deleterious effect of excessive ovarian androgen production on egg development in the early stage of ovarian stimulation. This is why, it is my preference to administer GnRH-antagonists, starting at the initiation of gonadotropin administration.
      •My preferred Protocols for Controlled Ovarian Stimulation (COS):
      1.“Long” GnRHa (Lupron/Buserelin/Superfact/Gonopeptyl) Pituitary Down-regulation Protocol: The most commonly prescribed protocol for GnRHa/gonadotropin administration is the so-called “long protocol”. Here, GnRHa is given, starting a week or so prior to menstruation. This results in an initial rise in FSH and LH , which is rapidly followed by a precipitous fall to near zero. It is followed by a withdrawal bleed (menstruation), whereupon gonadotropin treatment should commence, while daily Lupron injections continue, to ensure a “low LH” environment. A modification to the “long protocol” which I prefer prescribing for older women and in cases of DOR, is the Agonist/Antagonist Conversion Protocol (A/ACP) where, upon the onset of a GnRHa-induced bleed, the agonist is supplanted by an antagonist (Ganirelix/Cetrotide/Orgalutron) and this is continued until the hCG trigger. In many such cases I often supplement with human growth hormone (HGH) in such cases in an attempt to enhance egg mitochondrial activity and so enhance egg development. This approach is often augmented with preimplantation genetic screening (PGS) of all embryos that reach the expanded blastocyst stage of development by day 5-6 post-fertilization. I also commonly recommend blastocyst banking to many such patients.
      2.Short (“Flare”) GnRHa Protocol: Another GnRHa usage for COS is the so called “(micro) flare protocol”. This involves initiating gonadotropin therapy commensurate with initiation of gonadotropin administration. The supposed objective is to deliberately allow Lupron to elicit an initial surge (“flare”) in pituitary FSH release in order to augment FSH administration by increased FSH production. Unfortunately, this “spring board effect” constitutes “a double-edged sword”. While it indeed increases the release of FSH, it at the same time causes a surge in LH release. The latter can evoke excessive ovarian stromal/thecal androgen production which could potentially compromise egg quality, especially when it comes to older women and women with DOR. I am of the opinion that by evoking an exaggerated ovarian androgen response, such “(micro) flare protocols” can harm egg/embryo quality and reduce IVF success rates, especially when it comes to COS in older women, and in women with diminished ovarian reserve. Accordingly, I do not prescribe such protocols to my IVF patients.
      3.Estrogen Priming – This is the approach I sometimes prescribe for my patients who have virtually depleted ovarian reserve , as determined by very low blood anti-Mullerian hormone AMH levels (<0.2ng/ml or 2 pmol/L) and are thus likely to be very “poor responders”. It involves a modified A/ACP. We start with the birth control pill (BCP) for 10 days or longer, overlap it for 3 days with a GnRHa whereupon the BCP is stopped. Th GnRHa is continued until the onset of menstruation (usually 5-7 days later) to cause pituitary LH, down-regulation. Upon menstruation and confirmation by ultrasound and measurement of blood estradiol levels that adequate ovarian suppression has been achieved, the dosage of GnRHa is stopped and is immediately supplanted by daily administration of GnRH antagonist. The patient is given twice-weekly injections of estradiol valerate (Delestrogen) for a period of 8 days whereupon COS is initiated using a relatively high dosage FSH-(Follistim, Fostimon, Puregon or Gonal F), which is continued along with daily administration of GnRH antagonist until the “hCG “trigger.” This approach is often augmented with HGH administration throughout the process of COS and by preimplantation genetic screening (PGS) of all embryos that reach the expanded blastocyst stage of development by day 5-6 post-fertilization. I also commonly recommend blastocyst banking to many such patients.
      Estrogen Priming has succeeded in significantly enhancing ovarian response to gonadotropins in many of otherwise very poor responders.
      •Triggering egg Maturation prior to egg Retrieval: hCG versus GnRHa
      With ovulation induction using fertility drugs, the administration of 10,000U hCGu (Pregnyl; Profasi, Novarel) or 500mcg hCGr (Ovidrel/Ovitrel) “trigger”) sends the eggs (into maturational division (meiosis). This process is designed to halve the chromosome number, resulting in mature eggs (M2) that will have 23 chromosomes rather that the 46 chromosomes they had prior to the “trigger”. Such a chromosomally numerically normal (euploid), mature (MII) eggs, upon being fertilized will (hopefully) propagate euploid embryos that have 46 chromosomes and will be “: competent” to propagate viable pregnancies. In my opinion, the key is to always “trigger” with no less than 10,000U of hCGu or 500mcg hCGr (Ovidrel/Ovitrel). Any lesser dosage often will reduce the efficiency of meiosis and increase the risk of the eggs being aneuploid. I personally do not use the agonist (Lupron) “trigger”, unless it is combined with (low dosage) hCG. The supposed reason for using the agonist, (Lupron) “trigger” is that by inducing meiosis through compelling a surge in the release of LH by the pituitary gland, the risk it reduces the risk of OHSS. This may be true, but it comes at the expense of egg quality because the extent of the induced LH surge varies and if too little LH is released, meiosis can be compromised, thereby increasing the likelihood of aneuploid and immature (MI) eggs. And there are other better approaches to preventing OHSS (e.g. “prolonged coasting”), in my opinion.
      •Use of the Birth Control Pill (BCP) to launch IVF-COS.
      In natural (unstimulated) as well as in cycles stimulated with fertility drugs, the ability of follicles to properly respond to FSH stimulation is dependent on their having developed FSH-responsive receptors. Pre-antral follicles (PAF) do not have such primed FSH receptors and thus cannot respond properly to FSH stimulation with gonadotropins. The acquisition of FSH receptor responsivity requires that the pre-antral follicles be exposed to FSH, for a number of days (5-7) during which time they attain “FSH-responsivity” and are now known as antral follicles (AF). These AF’s are now able to respond properly to stimulation with administered FSH-gonadotropins. In regular menstrual cycles, the rising FSH output from the pituitary gland insures that PAFs convert tor AF’s. The BCP (as well as prolonged administration of estrogen/progesterone) suppresses FSH. This suppression needs to be countered by artificially causing blood FSH levels to rise in order to cause PAF to AF conversion prior to COS commencing, otherwise pre-antral-to –antral follicle conversion will not take place in an orderly fashion, the duration of ovarian stimulation will be prolonged and both follicle and egg development may be compromised. GnRH agonists cause an immediate surge in release of FSH by the pituitary gland thus causing conversion from PAF to SAF. This is why women who take a BCP to launch a cycle of COS need to have an overlap of the BCP with an agonist. By overlapping the BCP with an agonist for a few days prior to menstruation the early recruited follicles are able to complete their developmental drive to the AF stage and as such, be ready to respond appropriately to optimal ovarian stimulation. Using this approach, the timing of the initiation of the IVF treatment cycle can readily and safely be regulated and controlled by varying the length of time that the woman is on the BCP.
      Since optimizing follicular response to COS requires that prior to stimulation with gonadotropins, FSH-induced conversion from PAF to AF’s first be completed and the BCP suppresses FSH, it follows when it comes to women launching COS coming off a BCP something needs to be done to cause a rise in FSH for 5-7 days prior to menstruation heralding the cycle of CO S. This is where overlapping the BCP with a GnRHa comes in. The agonist causes FSH to be released by the pituitary gland and if overlapped with the BCP for several days and this will (within 2-5 days) facilitate PAF to AF conversion…. in time to start COS with the onset of menstruation. Initiating ovarian stimulation in women taking a BCP, without doing this is suboptimal.
      Women who (regardless of age) have diminished ovarian reserve (DOR) have a reduced potential for IVF success. Much of this is due to the fact that such women tend to have increased production, and/or biological activity, of LH. This can result in excessive ovarian male hormone (predominantly testosterone) production. This in turn can have a deleterious effect on egg/embryo “competency”.

      While it is presently not possible by any means, to reverse the effect of DOR, certain ovarian stimulation regimes, by promoting excessive LH production (e.g. short agonist/Lupron- “flare” protocols, clomiphene and Letrozole), can in my opinion, make matters worse. Similarly, the amount/dosage of certain fertility drugs that contain LH/hCG (e.g. Menopur) can have a negative effect on the development of the eggs of older women and those who have DOR and should be limited.

      I try to avoid using such protocols/regimes (especially) in women with DOR, favoring instead the use of the agonist/antagonist conversion protocol (A/ACP), a modified, long pituitary down-regulation regime, augmented by adding supplementary human growth hormone (HGH). I further recommend that such women be offered access to embryo banking of PGS (next generation gene sequencing/NGS)-selected normal blastocysts, the subsequent selective transfer of which by allowing them to capitalize on whatever residual ovarian reserve and egg quality might still exist and thereby “make hay while the sun still shines” could significantly enhance the opportunity to achieve a viable pregnancy

      Please visit my Blog on this very site, www. SherIVF.com, find the “search bar” and type in the titles of any/all of the articles listed below, one by one. “Click” and you will immediately be taken to those you select. Please also take the time to post any questions or comments with the full expectation that I will (as always) respond promptly

      •Controlled Ovarian Stimulation (COS) for IVF: Selecting the ideal protocol
      •IVF: Factors Affecting Egg/Embryo “competency” during Controlled Ovarian Stimulation(COS)
      •The Fundamental Requirements For Achieving Optimal IVF Success
      •Ovarian Stimulation for IVF using GnRH Antagonists: Comparing the Agonist/Antagonist Conversion Protocol.(A/ACP) With the “Conventional” Antagonist Approach
      •Anti Mullerian Hormone (AMH) Measurement to Assess Ovarian Reserve and Design the Optimal Protocol for Controlled Ovarian Stimulation (COS) in IVF.
      •The “Biological Clock” and how it should Influence the Selection and Design of Ovarian Stimulation Protocols for IVF.
      • A Rational Basis for selecting Controlled Ovarian Stimulation (COS) protocols in women with Diminished Ovarian Reserve (DOR)
      •Diagnosing and Treating Infertility due to Diminished Ovarian Reserve (DOR)
      •Controlled Ovarian Stimulation (COS) in Older women and Women who have Diminished Ovarian Reserve (DOR): A Rational Basis for Selecting a Stimulation Protocol
      •Human Growth Hormone Administration in IVF: Does it Enhances Egg/Embryo Quality and Outcome?
      •The BCP: Does Launching a Cycle of Controlled Ovarian Stimulation (COS). Coming off the BCP Compromise Response?
      •Blastocyst Embryo Transfers Should be the Standard of Care in IVF
      •Frozen Embryo Transfer (FET) versus “Fresh” ET: How to Make the Decision
      •Frozen Embryo Transfer (FET): A Rational Approach to Hormonal Preparation and How new Methodology is Impacting IVF.
      •Staggered IVF: An Excellent Option When. Advancing Age and Diminished Ovarian Reserve (DOR) Reduces IVF Success Rate
      •Embryo Banking/Stockpiling: Slows the “Biological Clock” and offers a Selective Alternative to IVF-Egg Donation.
      •Preimplantation Genetic Testing (PGS) in IVF: It Should be Used Selectively and NOT be Routine.
      •Preimplantation Genetic Sampling (PGS) Using: Next Generation Gene Sequencing (NGS): Method of Choice.
      •PGS in IVF: Are Some Chromosomally Abnormal Embryos Capable of Resulting in Normal Babies and Being Wrongly Discarded?
      •PGS and Assessment of Egg/Embryo “competency”: How Method, Timing and Methodology Could Affect Reliability
      •Treating Out-of-State and Out-of-Country Patients at Sher-IVF in Las Vegas:
      •Traveling for IVF from Out of State/Country–
      •A personalized, stepwise approach to IVF
      •How Many Embryos should be transferred: A Critical Decision in IVF.
      •The Role of Nutritional Supplements in Preparing for IVF
      •Premature Luteinization (“the premature LH surge): Why it happens and how it can be prevented.
      •IVF Egg Donation: A Comprehensive Overview

      ___________________________________________________
      ADDENDUM: PLEASE READ!!
      INTRODUCING SHER FERTILITY SOLUTIONS (SFS)
      Hitherto I have personally performed IVF- treatment and related procedures on patients who, elected to travel to Las Vegas to be managed by me. However, with the launching of Sher-Fertility Solutions (SFS) in April 2019, I have taken on a new and expanded role. Now, rather than having hands-on involvement I confine my services to providing hour-long online Skype consultations to an ever-growing number of patients (emanating from >40 countries), with complex Reproductive problems, who seek access to my input, advice and guidance. All Skype consultations are followed by a detailed written report that meticulously describes and explains my recommendations for treatment. All patients are encouraged to share this report with their personal treating doctor(s), with whom [subject to consent and a request from their doctor] I will, gladly discuss their case with the “treating Physician”.
      Through SFS I am now able to conveniently provide those who because of geography, convenience and cost, prefer to be treated at home or elsewhere by their chosen Infertility Physician.
      “I wish to emphasize to all patients with whom I consult, that in the final analyses, when it comes to management, strategy, protocol and implementation of treatment, my advice and recommendations are always superseded by that of the hands-on treating Physician”.

      Anyone wishing to schedule a Skype consultation with me, can do so by: Calling my concierge (Patti Converse) at 1-800-780-7437 (in the U.S.A or Canada) or 702-533-2691, for an appointment. Patients can also enroll online on my website, http://www.SherIVF.com, or email Patti at concierge@SherIVF.com .
      I was very recently greatly honored in receiving an award by the prestigious; International Association of Top Professionals (IAOTP). For more information, go to the press release on my website, http://www.sherIVF.com .

      PLEASE HELP SPREAD THE WORD ABOUT SFS!

  5. Hi Dr Sher,

    I am a 36 year old who has one son conceived naturally six years ago. Since then I have had two miscarriages and an ectopic pregnancy. I have endometriosis and adenomyosis. My Amh is 2.9 (uk range) I have had two unsuccessful Oe ivf so moved onto de ivf. This failed. I have had immune testing and found to have high ana levels and nk cells. My re has suggested starting prednisone 10mg 5 weeks prior to transfet and intralipids. My question is do you think 10mg is a high enough dose? What dose of prednisolone or dexamethasone ( if you feel dexamethasone may work better) would you recommend. I would really value your advice.
    Thank you for your time
    May

    • About 1/3 of women who have endometriosis (regardless of its severity) develop immunologic implantation dysfunction (IID).

      Unless tests for immunologic implantation dysfunction (IID) are performed correctly and conducted by a one of the few reliable reproductive immunology reference laboratory in the United States, treatment will likely be unsuccessful. . In this regard it is most important that the right tests be ordered and that these be performed by a competent laboratory. There are in my opinion only a handful of reliable Reproductive Immunology Laboratories in the world and most are in the U.S.A. Also, it is my opinion that far too often, testing is inappropriate with the many redundant and incorrect tests being requested from and conducted by suboptimal laboratories. Finally for treatment to have the best chance of being successful, it is vital that the underlying type of IID (autoimmune IID versus alloimmune) be identified correctly and that the type, dosage, concentration and timing of treatments be carefully devised and implemented.
      WHO SHOULD UNDERGO IID TESTING?
      When it comes to who should be evaluated, the following conditions should in always raise a suspicion of an underlying IID, and trigger prompt testing:
      •A diagnosis of endometriosis or the existence of symptoms suggestive of endometriosis (heavy/painful menstruation and pain with ovulation or with deep penetration during intercourse) I would however emphasize that a definitive diagnosis of endometriosis requires visualization of the lesions at laparoscopy or laparotomy)
      •A personal or family history of autoimmune disease such as hyper/hypothyroidism (as those with elevated or depressed TSH blood levels, regardless of thyroid hormonal dysfunction), Lupus erythematosus, Rheumatoid arthritis, dermatomyositis, scleroderma etc.)
      •“Unexplained” infertility
      •Recurrent pregnancy loss (RPL)
      •A history of having miscarried a conceptus that, upon testing of products of conception, was found to have a normal numerical chromosomal configuration (euploid).
      •Unexplained IVF failure
      • “Unexplained” intrauterine growth retardation due to placental insufficiency or late pregnancy loss of a chromosomally normal baby
      What Parameters should be tested?
      In my opinion, too many Reproductive Immunologists unnecessarily unload a barrage of costly IID tests on unsuspecting patients. In most cases the initial test should be for NK cell activation, and only if this is positive, is it necessary to expand the testing.
      The parameters that require measurement include:
      oFor Autoimmune Implantation Dysfunction: Autoimmune implantation dysfunction, most commonly presents with presumed “infertility” due to such early pregnancy losses that the woman did not even know she was pregnant in the first place. Sometimes there as an early miscarriage. Tests required are: a) blood levels of all IgA, IgG and IgM-related antiphospholipid antibodies (APA’s) directed against six or seven specific phospholipids, b) both antithyroid antibodies (antithyroid and antimicrosomal antibodies), c) a comprehensive reproductive immunophenotype (RIP) and, c) most importantly, assessment of Natural Killer (NK) cell activity (rather than concentration) by measuring by their killing, using the K-562 target cell test and/or uterine cytokine measurement. As far as the ideal environment for performing such tests, it is important to recognize that currently there are only about 5 or 6, Reproductive Immunology Reference Laboratories in the U.S capable of reliably analyzing the required elements with a sufficient degree of sensitivity and specificity (in my opinion).
      oFor Alloimmune implantation Dysfunction: While alloimmune Implantation usually presents with a history of unexplained (usually repeated) miscarriages or secondary infertility (where the woman conceived initially and thereupon was either unable to conceive started having repeated miscarriages it can also present as “presumed” primary infertility. Alloimmune dysfunction is diagnosed by testing the blood of both the male and female partners for matching DQ alpha genes and NK/CTL activation. It is important to note that any DQ alpha match (partial or complete) will only result in IID when there is concomitant NK/CTL activation (see elsewhere on this blog).

      How should results be interpreted?
      Central to making a diagnosis of an immunologic implantation dysfunction is the appropriate interpretation of natural killer cell activity (NKa) .In this regard, one of the commonest and most serious errors, is to regard the blood concentration of natural killer cells as being significant. Rather it is the activity (toxicity) of NK cells that matters as mentioned. Then there is the interpretation of reported results. The most important consideration is the percentage of target cells “killed” in the “native state”. In most cases a level of >10% killing should be regarded with suspicion and >12% overtly abnormal. In my opinion, trying to interpret the effect of adding IVIG or Intralipid to the sample in order assess whether and to what degree the use of these products would have a therapeutic benefit is seriously flawed and of little benefit. Clinically relevant NK cell deactivation can only be significantly effected in vivo and takes more than a week following infusion to occur. Thus what happens in the laboratory by adding these products to the sample prior to K-562 target cell testing is in my opinion likely irrelevant.
      There exists a pervasive but blatant misconception on the part of many, that the addition of Intralipid (IL) /immunoglobulin-G IVIG) can have an immediate down-regulatory effect on NK cell activity. This has established a demand that Reproductive Immunology Reference Laboratories report on NK cell activity before and following exposure to IVIG and/or IL. However, the fact is that activated “functional” NK cells (NKa) cannot be deactivated in the laboratory. Effective down-regulation of activated NK cells can only be adequately accomplished if their activated “progenitor/parental” NK cells are first down-regulated. Thereupon once these down-regulated “precursor” NK cells are exposed to progesterone, they will begin spawning normal and functional NK cells, which takes about 10-14 days. It follows that to assess for a therapeutic response to IVIG/IL therapy would require that the patient first be treated (10-14 days prior to embryo transfer) and thereupon, about 2 weeks later, be retested. While at 1st glance this might seem to be a reasonable approach, in reality it would be of little clinical benefit because even if blood were to be drawn 10 -14 days after IL/IVIG treatment it would require an additional 10 days to receive results from the laboratory, by which time it would be far too late to be of practical advantage.

      Neither IVIG nor IL is capable of significantly suppressing already activated “functional NK cells”. For this to happen, the IL/IVIG would have to down-regulate progenitor (parent) NK cell” activity. Thus, it should be infused 10-14 several prior to ovulation or progesterone administration so that the down-regulated “progenitor/precursor” NK cells” can propagate a sufficient number of normally regulated “functional NK cell” to be present at the implantation site 7 days later. In addition, to be effective, IL/IVIG therapy needs to be combined with steroid (dexamethasone/prednisone/prednisolone) therapy to down-regulates (often) concomitantly activated T-cells.
      I strongly recommend that you visit http://www.DrGeoffreySherIVF.com. Then go to my Blog and access the “search bar”. Type in the titles of any/all of the articles listed below, one by one. “Click” and you will immediately be taken to those you select. Please also take the time to post any questions or comments with the full expectation that I will (as always) respond promptly.

      •The IVF Journey: The importance of “Planning the Trip” Before Taking the Ride”
      •Controlled Ovarian Stimulation (COS) for IVF: Selecting the ideal protocol
      •IVF: Factors Affecting Egg/Embryo “competency” during Controlled Ovarian Stimulation (COS)
      •The Fundamental Requirements for Achieving Optimal IVF Success
      •Use of GnRH Antagonists (Ganirelix/Cetrotide/Orgalutron) in IVF-Ovarian Stimulation Protocols.
      •The Role of Immunologic Implantation Dysfunction (IID) & Infertility (IID): PART 1-Background
      •Immunologic Implantation Dysfunction (IID) & Infertility (IID): PART 2- Making a Diagnosis
      •Immunologic Dysfunction (IID) & Infertility (IID): PART 3-Treatment
      •Thyroid autoantibodies and Immunologic Implantation Dysfunction (IID) Why did my IVF Fail
      •Recurrent Pregnancy Loss (RPL): Why do I keep losing my PregnanciesGenetically Testing Embryos for IVF
      •Staggered IVF
      •Staggered IVF with PGS- Selection of “Competent” Embryos Greatly Enhances the Utility & Efficiency of IVF.
      •Embryo Banking/Stockpiling: Slows the “Biological Clock” and offers a Selective Alternative to IVF-Egg Donation
      •Preimplantation Genetic Testing (PGS) in IVF: It should be Used Selectively and NOT be Routine.
      •IVF: Selecting the Best Quality Embryos to Transfer
      •Preimplantation Genetic Sampling (PGS) Using: Next Generation Gene Sequencing (NGS): Method of Choice.
      •PGS in IVF: Are Some Chromosomally abnormal Embryos Capable of Resulting in Normal Babies and Being Wrongly Discarded?
      •Immunologic Implantation Dysfunction: Importance of Meticulous Evaluation and Strategic Management 🙁 Case Report)
      •Intralipid and IVIG therapy: Understanding the Basis for its use in the Treatment of Immunologic Implantation Dysfunction (IID)
      •Intralipid (IL) Administration in IVF: It’s Composition; how it Works; Administration; Side-effects; Reactions and Precautions
      •Natural Killer Cell Activation (NKa) and Immunologic Implantation Dysfunction in IVF: The Controversy!
      •Natural Killer Cell Activation (NKa) and Immunologic Implantation Dysfunction in IVF: The Controversy!
      •Treating Out-of-State and Out-of-Country Patients at Sher-IVF in Las Vegas
      •Should IVF Treatment Cycles be provided uninterrupted or be Conducted in 7-12 Pre-scheduled “Batches” per Year
      •A personalized, stepwise approach to IVF

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      ADDENDUM: PLEASE READ!!
      INTRODUCING SHER FERTILITY SOLUTIONS (SFS)
      Hitherto I have personally performed IVF- treatment and related procedures on patients who, elected to travel to Las Vegas to be managed by me. However, with the launching of Sher-Fertility Solutions (SFS) in April 2019, I have taken on a new and expanded role. Now, rather than having hands-on involvement I confine my services to providing hour-long online Skype consultations to an ever-growing number of patients (emanating from >40 countries), with complex Reproductive problems, who seek access to my input, advice and guidance. All Skype consultations are followed by a detailed written report that meticulously describes and explains my recommendations for treatment. All patients are encouraged to share this report with their personal treating doctor(s), with whom [subject to consent and a request from their doctor] I will, gladly discuss their case with the “treating Physician”.
      Through SFS I am now able to conveniently provide those who because of geography, convenience and cost, prefer to be treated at home or elsewhere by their chosen Infertility Physician.
      “I wish to emphasize to all patients with whom I consult, that in the final analyses, when it comes to management, strategy, protocol and implementation of treatment, my advice and recommendations are always superseded by that of the hands-on treating Physician”.

      Anyone wishing to schedule a Skype consultation with me, can do so by: Calling my concierge (Patti Converse) at 1-800-780-7437 (in the U.S.A or Canada) or 702-533-2691, for an appointment. Patients can also enroll online on my website, http://www.SherIVF.com, or email Patti at concierge@SherIVF.com .
      I was very recently greatly honored in receiving an award by the prestigious; International Association of Top Professionals (IAOTP). For more information, go to the press release on my website, http://www.sherIVF.com .

      PLEASE HELP SPREAD THE WORD ABOUT SFS!

      Geoff Sher