Calva, Pilar
19 Articles at


Capillary Dysfunction and COVID-19 Survival

The precedence of the COVID-19 pandemic could advance research into flavonoids and their therapeutic effects on the capillary blood vessel system even further. If that happens, elderly people, diabetics, and former nicotine addicts would be the first among the future beneficiaries.

Date posted: 2020-07-09

The Embryo Before the Physician

The first event in the formation of a human being is the fusion of the ovum and the spermatozoid (each a "gamete"); this is known as conception. Upon conception, a developmental process of life begins that will not cease until death.

Date posted: 2017-11-20

Human-Animal Hybrids from Stem Cells: What are They?

The formation of human-pig or human-cow embryos is among the latest scientific "advances" being questioned by ethicists. Such chimeras are formed by combining genetically-distinct cells, in this case human cells and animal cells.

Date posted: 2017-11-20

Synthetic Embryos: Manipulating Cells and Manipulating Language

In order to escape legal restrictions, such as the 14-day rule, and numerous other moral and ethical concerns, many of the scientists busy creating human embryos by means of new technologies are also busy creating new terms to describe their creations - terms designed to imply that no human individual has been created."

Date posted: 2017-11-20

Understanding the Three-Parent Baby

Although MRTs might provide an opportunity to provide genetically-related healthy children for women suffering mitochondrial disease, its use more closely mirrors eugenic selection than true healing. The job of science is to heal sick people not to replace them. MRTs do not meet that standard.

Date posted: 2017-01-18

Now Popular in Venezuela? Sterilization Day

Breitbart News reported recently that the Miranda clinic in Caracas is now sterilizing 40 women a week during its weekly "sterilization day" and has a waiting list of 500 women.

Date posted: 2016-09-27

Should Sperm Donation Be Anonymous?

While often touted as a compassionate response to problems of infertility, anonymous sperm donation can present many serious problems.

Date posted: 2016-02-06

Ethics On Gene Editing the summit expressed fear that even altering embryos that aren't intended for implantation will pave the way toward germline editing. And some worried that public opposition to embryo research could cause a backlash against use of genome editing as therapy. But others saw an embryo research ban as unrealistic.

Date posted: 2015-12-21

Abortion, The Mother's Life, And The Principle of Double Effect

Some may view risking malformation as cruel, but they forget one thing. Life, even when imperfect (as if a perfect life were possible) is a gift, and the ultimate good.

Date posted: 2015-11-24

International Effort To Prohibit Surrogacy

"Surrogacy" can be a confusing term. Most generally, surrogacy refers to hiring a woman who commits to carry a baby with the obligation of ceding her parental rights and giving the child at birth to those who have hired her.

Date posted: 2015-11-15

Therapeutic Decisions

Today, there is a broadening use of the term "therapeutic," and it is problematic. The term is being applied to practices and procedures that intervene upon the human person, but which do not constitute therapy.

Date posted: 2015-10-18

Is Abortion Good For Women's Health?

Many claim that abortion increases women's health and reduces maternal mortality, but numerous studies contradict those claims.

Date posted: 2015-09-23

The Beginning Of Life: Part 1

The first event in the formation of an individual is precisely the encounter and fusion of these two highly-specialized cells: the mother's ovum and the father's spermatozoon.

Date posted: 2015-09-05

The Beginning Of Life: Part 2

The development of the zygote and the autonomy of prenatal life, further demonstrating the truth that a human being is created at conception.

Date posted: 2015-09-04

New Definitions Of Stem Cells Causing Confusion

Stem cells have been the object of intense, increasing interest due to their biological properties and the promise they hold for medical advances in the treatment of illnesses that are so far incurable.

Date posted: 2015-07-27

French Lab Announces It Has Created Human Sperm

Scientists from the biotech company Kallistem, in Lyon, France, announced last month that they had produced human spermatozoa (i.e. swimming sperm) in-vitro, though, so far, their research has not been published in a scientific journal.

Date posted: 2015-06-14

Chinese Scientists Manipulate Genome of Human Embryos

The technique was used on 86 embryos, 71 of whom survived. Of the 71 survivors, the technique was successful in 28 embryos, but the undesired mutation was corrected only in four embryos.

Date posted: 2015-06-04

Who was Professor Jerome Lejeune?

In 1958, Jerome Lejeune had discovered that an extra 21st chromosome is responsible for Down syndrome, or Trisomy 21.

Date posted: 2015-05-11

Caring When There Is No Cure

The patient's suffering is often the foundation upon which euthanasia and assisted suicide are justified or even obliged. But suffering today, more than ever, is "curable" with adequate means of pain relief and palliative care, and with adequate human and spiritual assistance.

Date posted: 2015-04-03