Showing posts with label medicine. Show all posts
Showing posts with label medicine. Show all posts

Saturday, September 2, 2023

Innovations in medicine: psychedelic drugs to treat depression

 Here's an editorial in JAMA that accompanies a report on treating some depressive patients using psilocybin therapy.

Psychedelic Therapy—A New Paradigm of Care for Mental Health, by Rachel Yehuda, PhD Amy Lehrner, PhD JAMA. Published online August 31, 2023. doi:10.1001/jama.2023.12900

"An increasing number of clinicians and researchers have become interested in the potential of psychedelic drugs for the treatment of mental health disorders, including depression, anxiety, posttraumatic stress disorder, eating disorders, and addictions.1,2

"Currently, most psychedelic compounds are illegal under federal law. They were placed on the most restrictive class of drugs, Schedule I, in the 1970s as part of the “war on drugs,” meaning that they were considered to have high potential for abuse with no accepted medical use.2 However, the ever-growing global mental health crisis, coupled with the shortage of effective therapeutic strategies, has given rise to a reconsideration of the therapeutic potential of these compounds in recent years.

...

"The study by Raison et al provides an excellent example of the promise of this new approach using psilocybin therapy for patients with major depressive disorder.3 Although the trial was relatively small, it demonstrated that a single dose of psilocybin in the context of a 6-week period that included active psychotherapy resulted in a rapid, robust, and sustained reduction in depressive symptoms.

"Psilocybin is a naturally occurring compound belonging to a class of compounds known as tryptamines, similar to lysergic acid diethylamide (LSD), dimethyltryptamine (DMT), and mescaline. Understanding its therapeutic efficacy requires an appreciation of the context in which it is used, and not just its pharmacological profile or biological mechanism of action. The psychotherapy that occurs with the psychedelic medication is a critical component of this approach.4

...

"The social, economic, and public health impacts of untreated mental disorders demand solutions. If psychedelic therapies do prove to have enduring effects after just a single or a few administrations in the context of a few sessions for preparation and integration, they have the potential to offer not just a new approach to mental health care, but an entirely new paradigm of care."

Monday, August 28, 2023

Unclaimed bodies and medical school anatomy classes.

 There's a long history of unclaimed bodies being used in medical school anatomy classes. (I think the historical availability of such cadavers is one of the reasons that the Harvard Medical School is in Boston rather than Cambridge.*)  Here's an update on the practice, in Texas.

Unclaimed Bodies and Medical Education in Texas, by Eli Shupe, PhD1; Serena Karim2; Daniel Sledge, PhD, JAMA.  online August 24, 2023

"The use of unclaimed bodies (bodies not claimed by next of kin for burial or cremation) in gross anatomy education in the US has declined substantially since the middle of the 20th century owing to increases in voluntary donations and escalating ethical concerns.1-3 Nonetheless, in most US jurisdictions, counties can donate unclaimed bodies to science without consent from the deceased or their next of kin, with some medical schools still accepting such donations. The current scope and magnitude of the use of unclaimed bodies in the US is underresearched, although one 2019 study found that anatomy course leaders at 12.4% of surveyed US medical schools indicated possible use of unclaimed bodies at their institutions.4 The objective of this study was to examine the trends in use of unclaimed bodies in medical education in Texas.

...

"We found that during 2017-2021, 6 of the 14 medical schools in our sample (42.9%) either engaged in the direct procurement and use of unclaimed bodies (2 schools, 14.3%) or received transferred cadavers from schools that did (4 schools, 28.6%). The remaining 8 schools (57.1%) had no possible use of unclaimed bodies."

###########

*Here's a related story from the Harvard Crimson:

Harvard's Habeas Corpus: Grave Robbing at Harvard Medical School, BY NURIYA SAIFULINA, September 28, 2017

"Harvard’s corpse legacy began in late 18th century, when the newly opened Medical School began hiring grave diggers—not to bury bodies, but to exhume them. According to a 2015 history of the so-called “resurrection men” in Synthesis, an undergraduate history of science journal, the diggers snuck into Boston’s burial grounds in search of new graves, stealthily dug up some of the most “fresh” residents, and refilled the graves to avoid arousing suspicion.

...

"Around 1770, Joseph Warren founded an illicit secret society called the “Spunker Club,” also known as the “Anatomical Club.” His older brother, John Warren—the founder of Harvard Medical School—was also a member. Some of the club’s most notable members included a William Eustis, the future governor of Massachusetts, and Samuel Adams’ son.

...

"As “resurrection men” and body-snatching enthusiasts continued to ransack Boston graveyards, civil indignation incited the Act to Protect the Sepulchers of the Dead in 1815, making disturbance of buried bodies illegal and prompting a citywide patrol of graveyards and burial grounds.

"This legislature forced Harvard Medical School to “import” the cadavers from New York instead, where body snatchers were “emptying at least six hundred or seven hundred graves annually,” according to an article in the Boston Gazette.

"After the Massachusetts Medical Society published a plea in 1829 claiming that medical students had no other choice but to pursue their studies “in defiance of the law of the land,” the school’s need for illegally-obtained cadavers waned. Massachusetts passed the Anatomy Act of 1831, which allowed for dissection of the unclaimed bodies of the indigent, insane and imprisoned."

Saturday, August 26, 2023

Challenge trials for a Hepatitis C vaccine

 The Journal Clinical Infectious Diseases has a special supplement on challenge trials (human infection trials) of a Hep C vaccine (now that Hep C is a curable disease):

Volume 77, Issue Supplement_3, 15 August 2023

SUPPLEMENT ARTICLES

T Jake Liang and others
Clinical Infectious Diseases, Volume 77, Issue Supplement_3, 15 August 2023, Page S215, https://doi.org/10.1093/cid/ciad343
Annette Rid and others
Clinical Infectious Diseases, Volume 77, Issue Supplement_3, 15 August 2023, Pages S216–S223, https://doi.org/10.1093/cid/ciad382
Jake D Eberts and others
Clinical Infectious Diseases, Volume 77, Issue Supplement_3, 15 August 2023, Pages S224–S230, https://doi.org/10.1093/cid/ciad350

The perspectives of former challenge study participants and a survey of other potential volunteers can inform the design of hepatitis C virus controlled human infection models, including on topics such as transparency, volunteer safety and risk, and compensation.

Alyssa Bilinski and others
Clinical Infectious Diseases, Volume 77, Issue Supplement_3, 15 August 2023, Pages S231–S237, https://doi.org/10.1093/cid/ciad379

Monday, May 15, 2023

Eliminating Hepatitis C, now that there's a cure (even though it's expensive)

 There's growing discussion about eliminating Hep C in the U.S., doing appropriate deals with the two drug companies whose patents still run for another six years.

Fleurence RL, Collins FS. A National Hepatitis C Elimination Program in the United States: A Historic Opportunity. JAMA. 2023;329(15):1251–1252. doi:10.1001/jama.2023.3692

"One of the most dramatic scientific achievements of the last few decades has been the development of direct-acting antivirals (DAAs) that can cure hepatitis C in more than 95% of people infected. But 9 years after the first such treatment was approved in the United States, the simple 8- to 12-week oral cure is not reaching a significant fraction of the more than 2.4 million US residents chronically infected with hepatitis C.1 More than 15 000 US residents die of hepatitis C every year unnecessarily. In its fiscal year 2024 budget proposal, the Biden-Harris administration has put forward a bold 5-year program to put the nation on course to eliminate hepatitis C in the United States.

"The consequences of untreated hepatitis C can be severe: cirrhosis, liver failure, hepatocellular cancer, and death. Curative treatment stops transmission, prevents liver cancer and liver failure, and saves lives. It is even likely to be cost-saving, by avoiding expensive medical treatments for liver failure and liver cancer. So why is this not a public health success story? One major reason is that many people with hepatitis C have poor access to health care and experience other chronic health and social inequities. Hepatitis C disproportionately affects individuals without insurance, American Indian and Alaska Native persons, non-Hispanic Black persons, justice-involved populations, and people who use illicit drugs.2

...

"Among those diagnosed, hepatitis C treatment coverage is far below what is needed to achieve elimination goals. Only about one-third of people diagnosed with hepatitis C who have private insurance, Medicare, or Medicaid get treated, and the proportion is probably even lower for those without insurance.4 This is in part due to current restrictions, such as requirements for patient sobriety, requirements to document evidence of liver fibrosis, and the restriction of access to treatment only to those seen by specialists, that have been put in place by public and private insurers in reaction to the high cost of DAAs ($90 000 per patient initially, still around $20 000). Low rates of treatment may also reflect the complexity of traversing the full cascade of care in our health care delivery system.

"Addressing this missed opportunity can save both lives and money. A national effort can build on lessons from programs launched by jurisdictions such as the states of Louisiana and Washington, the Cherokee Nation, the Veterans Health Administration, and the Federal Bureau of Prisons. For example, the Veterans Health Administration has treated more than 92 000 veterans with hepatitis C virus since 2014, with cure rates exceeding 90%.5 A key lesson from these initiatives is that success requires both managing the cost of the medications and developing a comprehensive public health effort to identify persons with hepatitis C and link them to care.

...

"the program aims to provide broad access to curative hepatitis C medications. A key element will be a national subscription model to purchase DAAs for those who are particularly underserved today: Medicaid beneficiaries, justice-involved populations, people without insurance, and American Indian and Alaska Native individuals who are treated through the Indian Health Service. With this approach to drug purchasing pioneered in Louisiana,7 the federal government will negotiate with manufacturers to purchase as much treatment as needed for all individuals in the designated groups. The pharmaceutical industry can expect more revenue for DAAs for these populations than it is receiving today, but at a much lower per-patient cost. That’s a win-win. Beyond the subscription model, the program will seek to provide additional co-pay assistance to Medicare beneficiaries. Private insurers will also be strongly encouraged to increase coverage for hepatitis C testing and treatment and limit out-of-pocket costs where possible."

Thursday, May 11, 2023

Telehealth restrictions and medical aid in dying/death with dignity

 Medical aid in dying (MAID) is now available to some extent in eleven U.S. jurisdictions (10 States and the District of Columbia), mostly with the requirement that eligible patients are within six months of dying naturally.  So these patients are pretty ill, which makes it difficult for some of them--particularly rural patients--to schedule in-person final appointments with their physicians, to receive the drugs that they will take.  Telehealth appointments and prescriptions have been important for these patients, and those may be going away.

Statnews has the story:

Dying patients protest looming telehealth crackdown By JoNel Aleccia 

"Online prescribing rules for controlled drugs were relaxed three years ago under emergency waivers to ensure critical medications remained available during the COVID-19 pandemic. Now, the U.S. Drug Enforcement Agency has proposed a rule that would reinstate most previously longstanding requirements that doctors see patients in person before prescribing narcotic drugs such as Oxycontin, amphetamines such as Adderall, and a host of other potentially dangerous drugs.

"The aim is to reduce improper prescribing of these drugs by telehealth companies that boomed during the pandemic. Given the ongoing opioid epidemic, allowing continued broad use of telemedicine prescribing “would pose too great a risk to the public health and safety,” the proposed rule said. It also cracks down on how doctors can prescribe other less-addictive drugs, like Xanax, used to treat anxiety, and buprenorphine, a narcotic used to treat opioid addiction.

...

"The proposal has sparked a massive backlash, including more than 35,000 comments to a federal portal and calls from advocates, members of Congress and medical groups to reconsider certain patients or provisions.

“They completely forgot that there was a population of people who are dying,” said Dr. Lonny Shavelson, a California physician who chairs the American Clinicians Academy on Medical Aid in Dying, a coalition of doctors who help patients access care under so-called right-to-die laws.

"Among the biggest complaints: The rule would delay or block access for patients who seek medically assisted suicide and hospice care, critics said. Many of the comments — including nearly 10,000 delivered in person to DEA offices — came from doctors and patients protesting the effect of the rule on seriously ill and dying patients."

Sunday, April 23, 2023

Medical aid in dying: access for children, and for mental illness

Two recent articles discuss whether there should be categorical limits on medical aid in dying (MAID).  In the Netherlands, the law now permits euthanasia for children in certain horrific situations, and in Canada, a debate continues about the status of patients with mental illness.

 From The Conversation:

Dutch government to expand euthanasia law to include children aged one to 12 – an ethicist’s view  by Dominic Wilkinson

"Ernst Kuipers, the Dutch health minister, recently announced that regulations were being modified to allow doctors to actively end the lives of children aged one to 12 years who were terminally ill and suffering unbearably.

"Previously, assisted dying was an option in the Netherlands in rare cases in younger children (under one year) and in some older teenagers who requested voluntary euthanasia. Until now, Belgium was the only country in the world to allow assisted dying in children under 12.

...

"Dutch paediatricians and parents had reported that in a small number of cases, children and families were experiencing distressing suffering at the end of life despite being provided with palliative care.

"That included, for example, children with untreatable brain tumours who developed relentless vomiting, screaming, and seizures in their dying phase. Or children with epilepsy resistant to all treatment with tens to hundreds of seizures a day.

"The study recommended improvements in access to palliative care for children, as well as altering regulation to provide the option of assisted dying in these extreme cases.

"It has been suggested that five to ten children a year might be eligible for this option in the Netherlands.

*********

From the NYT, an opinion piece:

Medical Assistance in Dying Should Not Exclude Mental Illness By Clancy Martin

"I am a Canadian, where eligible adults have had the legal right to request medical assistance in dying (MAID) since June 2016. Acceptance of MAID has been spreading, and it is now legal in almost a dozen countries and 10 U.S. states and Washington, D.C. To my mind, this is moral progress: When a person is in unbearable physical agony, suffering from a terminal disease, and death is near, surely it is compassionate to help end the pain, if the person so chooses.

"But a debate has arisen in Canada because the law was written to include those living with severe, incurable mental illness. This part of the law was meant to take effect this year but was recently postponed until 2024."



Wednesday, April 19, 2023

Transplantation: progress and continued shortcomings

 Here's a guest essay from the NYT that focuses on a different set of shortcomings of organ transplantation than organ availability. The author writes about how her long history of immunosuppression, to keep her transplanted organ(s) alive, has left her vulnerable to cancer.

My Transplanted Heart and I Will Die Soon.  By Marine Buffard

"My 35 years living with two different donor hearts (I was 25 at the time of the first transplant) — finishing law school, getting married, becoming a mother and writing two books — has felt like a quest to outlast a limited life expectancy. 

...

"Organ transplantation is mired in stagnant science and antiquated, imprecise medicine that fails patients and organ donors. And I understand the irony of an incredibly successful and fortunate two-time heart transplant recipient making this case, but my longevity also provides me with a unique vantage point. Standing on the edge of death now, I feel compelled to use my experience in the transplant trenches to illuminate and challenge the status quo.

"Over the last almost four decades a toxic triad of immunosuppressive medicines — calcineurin inhibitors, antimetabolites, steroids — has remained essentially the same with limited exceptions. These transplant drugs (which must be taken once or twice daily for life, since rejection is an ongoing risk and the immune system will always regard a donor organ as a foreign invader) cause secondary diseases and dangerous conditions, including diabetes, uncontrollable high blood pressure, kidney damage and failure, serious infections and cancers. The negative impact on recipients is not offset by effectiveness: the current transplant medicine regimen does not work well over time to protect donor organs from immune attack and destruction.

"My first donor heart died of transplant medicines’ inadequate protection of the donor heart from rejection; my second will die most likely from their stymied immune effects that give free rein to cancer.

...

"Without vigorous pushback, hospitals and physicians have been allowed to set an embarrassingly low bar for achievement. Indeed, the prevailing metric for success as codified by the Health Resources and Services Administration is only one year of post-transplant survival, which relieves pressure for improvement."

*************

That one year of measured graft survival is both too short, as the author points out, and too long.  By penalizing transplant centers for transplants that fail to survive a year, the current regulations make transplant centers too risk averse, so that kidney transplants that would have only, say, an 85% chance of working well are often not conducted, leaving patients to remain on dialysis, often til death,  for that 85% chance of life.

Transplantation is, still, a modern miracle. But until we can do without it, we'll have to keep trying to do it better.

Monday, April 10, 2023

Comstockery and abortifacients, on the way to the Supreme Court

 The Comstock Act of 1873 made it a Federal crime to distribute information or medicines for contraception or abortion, and more generally on material judged to be for "any indecent or immoral purpose."  The 1965 ruling in Griswold vs. Connecticut found the bans on contraception to be unconstitutional, and the bans on pornography were strictly limited the year before in the case Jacobellis v. Ohio.  But the Act reared its head again when it was cited by a Federal judge in Texas, Matthew J. Kacsmaryk, in his ruling that the abortion inducing drug mifepristone was illegal to distribute anywhere in the U.S., including in states where abortion is legal.

Michelle Goldberg in the NYT writes about "The Hideous Resurrection of the Comstock Act"

"suddenly, the prurient sanctimony that George Bernard Shaw called “Comstockery” is running rampant in America. As if inspired by Comstock’s horror of “literary poison” and “evil reading,” states are outdoing one another in draconian censorship. In March, Oklahoma’s Senate passed a bill that, among other things, bans from public libraries all content with a “predominant tendency to appeal to a prurient interest in sex.” Amy Werbel, the author of “Lust on Trial: Censorship and the Rise of American Obscenity in the Age of Anthony Comstock,” described how Comstock tried to suppress photographs of cross-dressing women. More than a century later, Tennessee has banned drag performances on public property, with more states likely to follow.

"And now, thanks to a rogue judge in Texas, the Comstock Act itself could be partly reimposed on America. Though the act had been dormant for decades and Congress did away with its prohibitions on birth control in 1971, it was never fully repealed. And with Roe v. Wade gone, the Christian right has sought to make use of it. The Comstock Act was central to the case brought by a coalition of anti-abortion groups in Texas seeking to have Food and Drug Administration approval of mifepristone, part of the regimen used in medication abortion, invalidated. And it is central to the anti-abortion screed of an opinion by Matthew J. Kacsmaryk, the judge, appointed by Donald Trump, who on Friday ruled in their favor.

...

"On Friday a Washington State judge issued an opinion directly contradicting Kacsmaryk’s and ordering the F.D.A. to continue to make mifepristone available. The dispute now is likely headed to the Supreme Court."

Saturday, April 8, 2023

Markets in human milk, placenta, and feces

I've blogged earlier about markets for breast milk, but here is an article that considers them also in connection with placenta and feces: 

The Law of Self-Eating—Milk, Placenta, and Feces Consumption by Mathilde Cohen, Law, Technology and Humans, 3(1), pp.109-122.

"Milk, Placenta, and Feces 

"Since antiquity at least, there have been markets in human milk. Until the twentieth century, they relied primarily on wet nurses hired (or forced) to nurse infants directly on the breast.14Ancient Egyptian, Greek, and Roman pharmacopeias called for human milk as a therapeutic substance to treat burns as well as ailments affecting the ears, eyes, and genitals.15Traditional Chinese medicine  employed  human  milk  in  a  variety  of  preparations  to  cure  diseases,  such  as  debilitation,  arthritis,  rheumatism, voicelessness, amenorrhea, eye infections, and poisoning.16

"Today, markets in human milk continue to thrive.17Such markets assume two main forms: 1) informal markets through which people give or sell their milk peer-to-peer via their social circles or online; and 2) formal markets whereby profit or non-profit organizations, such as milk banks and commercial human milk companies, collect, process, and distribute milk to hospitals and a few outpatients for a fee. Human milk is sought after by three main categories of consumers: infants, adults, and researchers.

...

"Placenta

"Human placentas are used for spiritual, nutritional, medical, pharmaceutical, and cosmetic purposes. Placentophagy, or the act of eating one’s placenta after childbirth, has been practiced in the Global North since the beginningof the home-and natural-birth movement in the 1970s.22It is not an unprecedented phenomenon. Indeed, historian Jacques Gélis reported that:

    "Placentophagy, the custom of eating the newly expelled placenta,     has existed at various times amongst people of very different         cultures. From the sixteenth century onwards, European travellers to     the new world were much struck by this custom, which they         unfailingly reported.23

"According to Gélis, placentophagy was also practiced in Europe; however, “doctors and churchmen  were  more  and  more repelled, from the end of the seventeenth century onwards, by this custom . . . so ‘repugnant to humanity."  In the past decade, placentophagy has reemerged as a mainstream practice in the U.S., where it has been described as “anew  American  birth ritual.25

"Few randomized controlled trials have corroborated the benefits of placentophagy. However, placenta eaters are motivated by the hope of obtaining nourishment, hastening post-birth recovery, warding off postpartum depression, facilitating lactation, as well as spiritual motives, such as connecting with the baby and the environment. Placentas can be eaten raw or cooked."

...

"Minimally processed placental membranes have significant commercial and medical potential to treat, among other indications, eye diseases and acute and chronic wounds. The for-profit American company MiMedx also “grinds up amniotic tissue from placenta into an injectable product to treat tendinitis, strains, and other ailments.”29Much  like  human  milk,placentas  are increasingly seen as reservoirs of stem cells and thus are attractive to the field of regenerative and tissue engineering, and, more recently, as potential sources for treating coronavirus patients."

...

"Feces

"Excrement is typically regarded as disgusting; however, the medical use of human and animal feces has a long record. Heinrichvon Staden notes that:

"Most prominent among the ingredients in the Hippocratic pharmacological ‘dirt’ arsenal is the excrement of various animals. ..  .  the  belief  in  the  therapeutic  usefulness  of  excrement  was  shared  by  ancient  Mesopotamian,  Egyptian,  Greek,  Chinese, Talmudic, and Indian healers. . . . There is, therefore, abundant evidence that . . . ‘excrement therapy’—was a cross-cultural phenomenon extant already in the ancient world.32

"In Chinese medicine, human feces were used 1,700 years ago as a “suspension by mouth for patients who had food poisoning or severe diarrhea.”33

"Fast forward to the twentieth century, the community of microorganisms that dwell in the human gut has been shown to play a crucial role in human health. Fecal microbiota transplantation (“FMT”) was first identified in the modern scientific literature in 195834and has rapidly grown in popularity since the early 2010s. FMT consists in the delivery of processed stool from a healthy donor into the intestinal tract of a sick person via an enema, colonoscopy, naso-duodenal tube, capsules, or other means. As microbiologist Mark Smith and his colleagues noted, “the goal is to displace pathogenic microbes from the intestine by re-establishing a healthy microbial community.”35FMT  has  proven  strikingly  effective  in  treating Clostridium  difficile, a potentially lethal infection that most commonly affects older adults in hospitals or in long-term care facilities, typically after the  use  of  antibiotics."

...

"Despite these differences, milk, placenta, and feces share two sets of core similarities that justify their grouping in this analysis. First, milk, placenta, and feces are tissues that can be severed from the body without harm or risk of harm. Notably, milk and feces  are  replenishable  bodily  substances,  while  the  placenta  is  a  transient  organ  expelled  from  the  body  during  childbirth. Thus, far from constituting “corpse medicine”42(i.e., medicine that uses human materials obtained from dead bodies), the use of such substances can be characterized as living food or medicine. There are also no adverse health effects associated with the act of donation. Quite the opposite, good health requires that people eject the milk, placenta, and feces they produce from their bodies.  

...

"Second, these three products have similar channels of circulation, including via private, domestic consumption, peer-to-peer markets, medical and research institutions, and global markets in foods, drugs, and cosmetics. This wide scope for circulation is possible due to the potential for DIY treatments alongside higher tech uses involving special processing and expertise. Milk, placenta, and feces are collected, processed, and distributed by banks similar to other tissue banks; however, aspiring consumers can  also  obtain  milk,  placenta,  and  feces  and  use  them  on  their  own.  Unlike  blood  transfusion  or  organ  transplantation,  no professional expertise or complicated equipment is necessary to achieve basic forms of consumption. Milk, placenta, and fecescan be obtained directly from their producersafter some screening (or not) and consumed as is or minimally processed at home. Conversely, bio-banks systematically screen donors, subjecting them and their samples to a battery of tests, before processing their  products  in  various  ways;  for  example,  by freezing,  thawing,  pooling,  enriching,  freeze-drying  (in  the  case  of  milk), irradiating (in the  case of placenta), encapsulating (in the  case of stool). This is a fast-evolving field.

...

"No uniform perspective  has emerged on the  legal  classification of the  various body materials consumed by humans. In this respect, milk, placenta, and feces provide a case in point, as they do not fit neatly within the standard legal classifications for comparable products, such as foods, drugs, tissues, cosmetic ingredients, or waste products. Different countries have adopted contrasting legal regimes—or no regimes at all—to regulate these substances.

...

"In  the  so-called  post-colonial  era,  the  law  of  self-consumption  illustrates  the broader phenomenon of a “jurisprudence of disgust,” to use an expression that Alison Young developed to describe the legal censorship of provocative or “obscene” artwork.71A  significant  dimension  of  contemporary  law  making  can  be  characterized  as  a  response  to  what  is  considered disgusting around or among us, which reflects an endeavor to confine and tame what repulses us. This is particularly obvious in the context of what legal scholar Kim Krawiec calls “taboo trades” (and economist Alvin Roth dubs “repugnant markets”); that is, the exchanges and transactions of products that are considered culturally immoral and uncaring, such as those involving organs, babies, sex, drugs, and corruption."