Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Sperm Structure and Semen Composition

Sperm Structure and Semen Composition

During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...

Infertility in Males

Infertility in Males

Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...

Blood Types

Blood Types

Human blood is classified into different types based on the presence of antigens on the red blood cell's surface and antibodies in the plasma. Proper identification of blood type is essential for successful blood transfusion. The International Society of Blood Transfusion has identified 38 human blood types based on the surface antigens on the red blood cells. The most common types are ABO, Rh, and MNS blood types.
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...

Mate Choice

Mate Choice

Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.

Sperm Transport

Sperm Transport

The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...

Bone Marrow Sampling and Transplants

Bone Marrow Sampling and Transplants

Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same journal

The Voice-of-Colour: Diversifying Medical Research and a Fairer Health Policy.

Developing world bioethics·2026

Same journal

Exploring the Ethical Concerns of Diagnosis-Related Group System in Healthcare: Lessons and Recommendations for Malaysia.

Developing world bioethics·2026

Same journal

Ethics of Military Global Health Engagements.

Developing world bioethics·2026

Same journal

Frontline Healthcare Professionals' Perceptions of the Duty to Care During the COVID-19 Pandemic: A Multi-Method Study in Mozambique.

Developing world bioethics·2026

Same journal

Exploring the Challenges and Legal Implications of Secondary Use of Health Data in South Africa.

Developing world bioethics·2026

Same journal

When Constraint Becomes Constitutive: Moral Distress and Ethical Coping Among Emergency Healthcare Workers in the West Bank, Palestine.

Developing world bioethics·2026

Search research articles

Related Experiment Video

Updated: Jul 13, 2026

Sperm Collection of Differential Quality Using Density Gradient Centrifugation

Sperm Collection of Differential Quality Using Density Gradient Centrifugation

Published on: November 29, 2018

Racial classification regarding semen donor selection in Brazil.

Rosely Gomes Costa¹

¹Research and Development Centre (Centro de Pesquisa e Desenvolvimento-CPqD) in Campinas, S.P, Brazil. roselycosta@yahoo.com

Developing World Bioethics

|July 7, 2007

Summary

Anonymous semen donation in Brazil, governed by Resolution 1358/92, raises ethical concerns regarding autonomy and privacy. The practice is further complicated by racial classification issues within semen banks.

More Related Videos

Exploring the Longissimus Muscle: Unraveling its Correlation with Meat Quality in Bos indicus and Crossbred Bulls

Exploring the Longissimus Muscle: Unraveling its Correlation with Meat Quality in Bos indicus and Crossbred Bulls

Published on: July 12, 2024

Assessing Differences in Sperm Competitive Ability in Drosophila

Assessing Differences in Sperm Competitive Ability in Drosophila

Published on: August 22, 2013

Related Experiment Videos

Last Updated: Jul 13, 2026

Sperm Collection of Differential Quality Using Density Gradient Centrifugation

Sperm Collection of Differential Quality Using Density Gradient Centrifugation

Published on: November 29, 2018

Exploring the Longissimus Muscle: Unraveling its Correlation with Meat Quality in Bos indicus and Crossbred Bulls

Exploring the Longissimus Muscle: Unraveling its Correlation with Meat Quality in Bos indicus and Crossbred Bulls

Published on: July 12, 2024

Assessing Differences in Sperm Competitive Ability in Drosophila

Assessing Differences in Sperm Competitive Ability in Drosophila

Published on: August 22, 2013

Area of Science:

Reproductive Medicine
Bioethics
Sociology of Race

Background:

Brazil lacks specific legislation for assisted reproduction, relying on Resolution 1358/92 from the Federal Council of Medicine.
This resolution mandates anonymous gamete donation, with donors and recipients unaware of each other's identities.
Semen banks and medical teams act as intermediaries in the semen donation process.

Purpose of the Study:

To analyze the ethical implications of anonymous semen donation in Brazil.
To demonstrate how current practices may violate principles of autonomy, privacy, and equality.
To examine the impact of racial classification complexities on semen donation and recipient matching.

Main Methods:

Qualitative analysis of practices in two semen banks in São Paulo, Brazil.
Examination of Resolution 1358/92 and its practical application.
Exploration of the intersection between racial classification, anonymity, and assisted reproduction.

Main Results:

Anonymous semen donation, mediated by banks, potentially infringes upon patient autonomy and privacy.
The flexible and often subjective nature of racial classification in Brazil complicates the intermediary role of semen banks.
Discrepancies in racial perception between donors, recipients, and intermediaries can lead to ethical challenges.

Conclusions:

The current model of anonymous semen donation in Brazil, mediated by intermediaries, presents significant ethical challenges.
The racial dimension of gamete donation requires careful consideration due to Brazil's complex social and racial landscape.
There is a need for updated legislation and ethical guidelines to address the complexities of assisted reproduction and semen donation in Brazil.