Yi-Chun Ke

About

Yi-Chun Ke’s training is in physiology: a master’s from the Graduate Institute of Physiology at National Taiwan University’s College of Medicine, preceded by a biotechnology bachelors program at National Chung Hsing University. Physiology asks how a cell keeps working while what surrounds it moves — how solutes cross membranes, how osmolarity and hydrogen ion concentration are held inside narrow limits, how a system compensates when one variable starts to drift. That is the same question an embryology laboratory faces every day, except the subject is no longer inside a body.

Between the retrieval needle and the incubator, an oocyte spends time in an environment nobody built to replace the ovarian one. Culture medium has to stand in for follicular and tubal fluid; the incubator has to hold temperature and gas; vitrification has to be timed almost to the second. The tolerances are narrow, and they are the reason a laboratory is specified in terms of conditions rather than in terms of steps. A physiology graduate is trained to read those parameters as the substance of the problem, not as background to a procedure.

Ke works in NUWA Lab, where vitrification, several time-lapse culture systems and AI-assisted embryo assessment are in daily use, with a centralized alarm watch around the clock and a published survival figure for thawed frozen eggs. That is the equipment and monitoring layer within which any individual embryologist’s handling has to produce its result.

Clinical Expertise

• Embryology — Recover eggs from the fluid the follicles were flushed with, remove the cumulus cells around them, and read maturity from the first polar body and the cytoplasm before any fertilization attempt is committed to. Then follow cleavage day by day, and at the blastocyst stage grade the inner cell mass and the trophectoderm as two separate observations.
• IVF laboratory operations — Carry a batch from receipt through the choice of insemination or microinjection, the next-morning check that fertilization happened, and culture onward to transfer or freezing, without gaps in either the handling or the record.
• Physiology — Explain why a parameter is specified at a particular value: the osmolarity and buffering of the medium, the carbon dioxide and temperature the incubator maintains, and how long an egg can sit outside those conditions before the delay itself becomes a variable.
• Cell culture — Work in small volumes, often under oil, where contamination, evaporation and temperature loss are all failures of the same kind. Aseptic habit, staged dishes and controlled handling windows are the undergraduate-to-postgraduate throughline of culture work, and they are the daily reality of embryo handling.
• Gamete and embryo cryopreservation — Load eggs or embryos with cryoprotectant and vitrify them, then warm and dilute them back, and record what survived. Consistency across the whole sequence is what a published survival number represents.
• Laboratory operations and monitoring — Log conditions and outcomes per batch and keep the culture and storage systems inside specification, since the physician revising a stimulation plan is working from those entries.

Why Choose Ke

The degree subject maps onto the hardest part of the job. Protocols can be written down and standardized; what varies is how tightly the environment is held while the material is outside it. Embryo culture fails on tolerance, not on paperwork, and tolerance is the thing a physiology institute spends its years describing.

Research training is directed at conditions rather than at steps. A master’s in physiology is built around measurement of how a system responds when parameters are changed — which is the frame a laboratory needs when a result is poor and someone has to work out whether the cause was the medium, the equipment, the timing or the case itself.

The bench works inside specified equipment. This laboratory runs time-lapse culture systems, AI-assisted embryo assessment, vitrification and a centrally monitored alarm service, and discloses a survival rate for thawed eggs. Those are institutional commitments, and they are also the concrete conditions under which eggs and embryos get handled.

Undergraduate work was in biotechnology, at National Chung Hsing University, before the physiology master’s at National Taiwan University. That ordering puts handling technique — culture, sterile work, micromanipulation-adjacent practice — underneath the mechanistic training rather than bolted on afterwards.

The appointment is a laboratory one. Decisions about stimulation, transfer timing and add-ons belong to the treating physician; what sits with this post is the handling, observation and documentation of eggs and embryos, and Ke is the person accountable for that part of a cycle.

Professional Affiliations

Education is a master’s from the Graduate Institute of Physiology, National Taiwan University College of Medicine, and a bachelors program in biotechnology at National Chung Hsing University. The current position is embryologist at NUWA Lab, the laboratory unit of the Taipei center. The graduate institute sits within the medical college, which is the unit that hosts physiology training in Taiwan.

Suitable For

• Stability of temperature, gas and pH in embryo culture. Whether an embryo develops to day five is mostly an environmental question, and the honest answer to it is about how steadily those three things were held, which is the subject the degree here was in.
• Egg or embryo vitrification and survival after warming. Freezing only counts at the thaw. This laboratory publishes a survival figure for its frozen eggs, and reaching it consistently is a matter of procedural sameness across every batch.
• Prior cycles with developmental arrest or low blastocyst yield. When growth stops earlier than expected, the review runs backwards through egg handling, culture conditions and the observation record. Reconstructing that chain is laboratory work, not clinical work.
• Adding eggs and embryos cycle by cycle. Poor responders accumulate across several retrievals, and the decision to continue or change a protocol depends on comparable records between batches, including the conditions each batch was cultured under.
• Asking what the laboratory specifications actually are. The useful questions are concrete — which culture system, which freezing method, how equipment is monitored, who reviews an alarm at three in the morning — and all of them are answered by the laboratory rather than by the consultation room.