How Genetics Affects Women's Health

 

This article explains how genes affect women’s health. Scientists study genes to learn why some diseases happen and who is more likely to get them. The article talks about diseases that affect women, like breast cancer and ovarian cancer. By looking at genes, doctors can better understand these diseases and find people who may be at risk. It also explains that genes are not the only thing that matters. Things like diet, stress, and lifestyle also affect health. This means both your genes and your daily life work together. Another important point is that new tools help doctors use genetic information to give better care. This can help with finding diseases early and choosing the best treatment. Overall, the article shows that genetics is important for learning about women’s health and helping improve care in the future.

Genes can help explain why some women get certain diseases. Doctors can use genetic information to find people who may be at higher risk. Health is affected by both genes and lifestyle. New tools are helping doctors give better care. Studying genes helps us understand diseases better. This research can help improve healthcare in the future.

#Genetics #WomensHealth #DNA #Health #Science

Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC4936393/

Additional info: https://medlineplus.gov/genetics/

Correlation or Causation: Discovered Links Between Tylenol and Autism

Some people have the pretense that women who take Tylenol during pregnancy cause their baby to develop autism. A recent study claims that this trend may be more correlation than causation. As per The National Society of Autism, autistic individuals may experience pregnancy pain differently when to an un affected individual, hence they are more likely to take Tylenol to remedy the pain. Due to the fact that autism is a highly heritable trait, one can see how this misconception could develop in other studies. The article claims that the only way to definitively prove that Tylenol is safe to take during pregnancy would be highly unethical and impractical. With this being said, the article does make the claim that there is no scientific data supporting the idea that Tylenol causes autism. Overall, the conclusion is that evidence so far suggests Tylenol does not cause autism, but research is still ongoing, and confusion exists because different studies have produced mixed results.

Genetic variation and exercise-induced muscle damage

The article explains that people respond differently to exercise because of genetic differences. Intense exercise can cause muscle damage, soreness, and inflammation, but some individuals recover faster than others due to their genes. These differences can affect performance, injury risk, and recovery, suggesting training could be tailored to each person.

Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC4983298/

 

Gene Editing Comes with Ethical Problems

  Links:

• https://www.who.int/news-room
• https://bioethics.nih.gov

Tag: Ethics

Commentary:

Gene editing sounds good until you think about editing embryos. It could prevent diseases, but it could also be used to choose traits. That is where it starts getting questionable. There needs to be limits or it can easily be misused. Genetics is advancing fast, but ethics needs to keep up.

Understanding The Genetic Link Between Eczema and Food Allergy

 

The building blocks of certain genes are responsible for Atopic Dermatitis (AD) diagnosis in patients. This article explores the FLG gene, which encodes for the protein filaggrin. The study found that loss of function mutations in the FLG gene are the most significant risk factor for AD. Filaggrin acts as the structural “glue” for the skin barrier. The mutations result in a defective epidermal seal which allows outside factors such as environmental triggers and food allergy to penetrate through the body.

Specifically, children with the FLG mutation are much more likely to develop eczema, which is a connecting piece for IgE-mediated food allergies. The FLG defect primes the immune system to recognize food proteins including peanuts, or eggs as dangerous invaders before the child even eats them and in an harmless state.

This study explores the links between eczema, food allergies, and even asthma which is predicted by the FLG gene. Observing these mutations early, can assist healthcare providers in prioritizing the treatment of eczema in infants to shut down the progression of food allergies or asthma.

Tags: #FLG #Eczema #Filaggrinmutations #Skinbarrier #Foodallergy

Soruces: 

https://medicaljournalssweden.se/actadv/article/view/24360

https://eczema.org/information-and-advice/our-skin-and-eczema/find-out-more-about-filaggrin/ 

Your DNA Can Guide Your Treatment

  Links:

• https://www.nih.gov/news-events
• https://www.cdc.gov/genomics/about/index.htm

Tag: Personalized Medicine

Commentary:

Using someone’s DNA to guide treatment is becoming more common, especially in areas like cancer. Instead of using the same treatment for everyone, doctors can look at specific mutations and choose what will work best. That makes treatment more effective and can reduce side effects. It also helps avoid wasting time on treatments that will not work. At the same time, there are concerns about genetic privacy and who has access to that information. Not everyone has equal access to testing either, which creates a gap in care. Even with those issues, personalized medicine is clearly making healthcare more precise and targeted.

Genetics On Eye Color

 Genetics on Eye Color

The color of the eyes comes from the iris, specifically from a layer called the stroma. The main pigments that contribute to eye color are melanin, pheomelanin, and eumelanin. Melanin is a yellow-brown pigment that also affects skin tone. Pheomelanin is a red-orange pigment found in people with green or hazel eyes. Eumelanin is a dark brown or black pigment that deepens eye color. These combinations of pigments determine whether a person's eyes appear brown, hazel, green, or blue.

A baby's eye color can change over time, especially during the first year of life. Some babies are born with blue or gray eyes, while others are born with brown eyes. This depends on their genetic background and the amount of pigment present. Pigment production increases during the first six months after birth, and a child’s eye color may not be fully established until around one year of age.

Eye color is influenced by the genes OCA2 and HERC2. These genes control how much pigment is produced and how it is distributed in the iris. Each person inherits two alleles for each gene—one from each parent. If the alleles differ, the dominant one is expressed. Brown eyes tend to be more dominant than blue eyes. Researchers also believe that people with blue eyes may share a distant common ancestor.

It is still possible for two blue-eyed parents to have a child with brown eyes. This can happen because parents may carry hidden genetic variants for brown eyes that can be passed down to their child. Punnett squares can help estimate probabilities based on the parents’ traits, but they are not always reliable because they do not account for how many genes are involved.

In some cases, unusual eye color can provide clues about a person’s health. For example, Waardenburg syndrome can cause heterochromia, a condition in which a person has two different-colored eyes, and it may also be linked to hearing loss. Another condition, ocular albinism, results in very pale blue eyes due to a lack of pigment and is more commonly seen in males.

Source: https://www.verywellhealth.com/genetics-of-eye-color-3421603

Extra Source: https://www.sciencenewstoday.org/the-genetic-secrets-behind-eye-color

Ancient remains provides evidence of some of the earliest recorded ailments .

 Scientists are increasingly using ancient DNA to understand disease in early human populations. In one study, researchers analyzed the remains of a 12,000 year old mother and daughter and identified a rare genetic growth disorder in the NPR2 gene known as acromesomelic dysplasia (dwarfism). Scientist revealed that the daughter inherited two copies of this rare genetic disease, leading to her being short for the time period, while the mother carried only one copy and showed milder effects. This discovery highlights how inheritance patterns influence the expression and severity of genetic diseases.    

    Similarly, another report described how scientists used ancient DNA to trace the origins of infectious diseases in early humans. By extracting and analyzing genetic material from ancient remains, researchers were able to identify diseases and trace their origins. Together, these studies show how modern genetic technology can reveal both inherited and environmental diseases in the past, providing valuable insight into human health, evolution, and the history.

Detecting Early-Onset Dementia Before Symptoms Begin

 

Carmine Martino

BIOL-2110-001

Dr. Guy Barbato

March 28th, 2026

    This article talks about research being done at UT Health San Antonio focused on early on-set dementia, which is a form of dementia that affects people under the age of 65. The researchers are working to better understand the causes of the disease while also working to develop new tools that can help detect it earlier on. 

    One of the main things the article mentions is the use of new diagnostic methods, including blood-based biomarkers and advanced imaging techniques. These tools are being studied as ways to identify signs of dementia long before a person actually starts showing symptoms. The idea is that if doctors can detect the dementia earlier, they can better understand how it develops and potentially improve how it is managed.

    The researchers are also focusing on the genetics side of early-onset dementia. The article explains that many cases of early-onset dementia are still sporadic, meaning the exact cause is unknown. Instead of one specific gene determining whether someone will get the disease, researchers believe that while genetics can increase risk, it may also be a mix of different factors like lifestyle and environmental influences on brain health. Nevertheless, scientists are still looking at genetic patterns to better understand the risks and how the disease develops. 

    While current diagnoses usually happen after symptoms begin, these new approaches aim to change that by identifying the disease much earlier. This could make a big difference in how patients are treated and how the disease is studied overtime.

    I personally liked this article because it shows how research is improving when it comes to diseases that are hard to understand. The idea that doctors might be able to detect dementia years before symptoms start is remarkable. Even though the exact causes are still not fully known, studies like this make it seem possible that in the future, there could be better treatments or even ways to prevent it altogether within the next few decades.

Article:

https://news.uthscsa.edu/researchers-explore-genetic-roots-new-diagnostic-tools-for-early-onset-dementia/

Extra Source:

https://www.alz.org/alzheimers-dementia/what-is-dementia#:~:text=Dementia%20is%20a%20general%20term,most%20common%20cause%20of%20dementia.

Getting Drunk Faster Can be Affected by Genetics

                                                    

    Undenying low tolerance affects getting drunk faster; however, regardless of physical attributes and the number of drinks consumed, Dr. Laura Tran explains in a study from The Scientist that beside tolerance people get drunk faster could have the participation of genetics. Scientists are working to determine how genetic disparities influence alcohol metabolism and to understand how the body absorbs and processes alcohol as well as why among individuals the effects vary. The main point is that certain genes control how quickly alcohol is broken down in the body by the mutations in two main enzymes, alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH), which alter alcohol metabolism. After getting drunk, ADH takes the first step in turning alcohol into a toxic substance called acetaldehyde, while ALDH breaks them down into a less harmful substance for the body to remove. Therefore, people with slower ALDH activity make metabolite buildup and alcohol stays longer, causing stronger and faster intoxication. Furthermore, the study mentions static ataxia, people with family history of alcoholism tend to show less body sway after drinking. Suggesting their brain may responds differently, especially in the cerebellum, which controls balance and movement.

    It is interesting when something as common as drinking alcohol can be different because of genetics. This study explores the challenge that people do not react the same way even with similar genes, making scientists harder to effectively predict how alcohol will affect each person. However, doctors can give personalized advice to possibly prevent alcohol misuse by identifying higher-risk individuals.

Source: 

https://www.the-scientist.com/why-do-some-people-get-drunk-faster-than-others-72385

Additional Source:

https://www.the-scientist.com/cerebellum-plays-crucial-role-in-metabolizing-alcohol-in-mice-68620

Gene Therapy is Becoming Real

Links:

• https://www.fda.gov/news-events/press-announcements
• https://medlineplus.gov/genetics/understanding/therapy/

Tag: Gene Therapy

Commentary:

Gene therapy is no longer just something being tested, it is actually being used to treat real patients. By replacing or fixing a faulty gene, it targets the root cause of the disease instead of just managing symptoms. That is a huge shift in how treatment works. The downside is that these therapies are extremely expensive and not accessible to everyone. There are also risks, especially with how the body responds to viral vectors used to deliver the gene. Even with that, it shows how powerful genetics can be in medicine and it is likely going to expand a lot in the future.

Hereditary-patterned baldness

Hereditary-pattern baldness is a common, natural form of hair loss caused by genetics, hormones, and aging. It leads to gradual thinning of hair often starting at the temples and crown in men and as overall thinning on the top of the scalp in women. The hair loss is permanent, treatments like minoxidil or finasteride can slow it down or help regrow some hair. The condition tends to worsen over time, especially if it starts at a younger age. 

#Genetics #SportsScience #DNA #HumanTraits #ScienceNews

Source : https://www.health.harvard.edu/a_to_z/hereditary-patterned-baldness-a-to-z

How Genes Affect Heart Function and Lead to Heart Failure

 How Genes Affect Heart Function and Lead to Heart Failure

A recent genetics study published in Nature Communications looked at how genes affect the structure and function of the heart’s ventricles and how this relates to heart failure. Researchers studied genetic data from more than 56,000 people and found over 200 genetic locations linked to heart function, including many that had never been discovered before.

 Some of these genes may help explain why certain people are more likely to develop heart failure. The study also identified possible targets for new medications, which could help doctors treat heart failure more effectively in the future. Understanding the genetic causes of heart disease is important because it can lead to earlier diagnosis, better prevention, and more personalized treatments based on a person’s DNA. This research shows how genome-wide studies can help scientists find new ways to improve patient care and develop therapies for serious conditions like heart failure. 

Citations:

Aung, N., Vargas, J. D., Yang, C., Fung, K., Sanghvi, M. M., Piechnik, S. K., Neubauer, S., Ani Manichaikul, Rotter, J. I., Taylor, K. D., Joao, Bluemke, D. A., Kawut, S. M., Petersen, S. E., & Munroe, P. B. (2022). Genome-wide association analysis reveals insights into the genetic architecture of right ventricular structure and function. Nature Genetics, 54(6), 783–791. https://doi.org/10.1038/s41588-022-01083-2

Nicholls, H. L., Vargas, J. D., Sanghvi, M. M., Ahn, H.-S., Chahal, C. A. A., Khanji, M. Y., Petersen, S. E., Munroe, P. B., & Aung, N. (2026). Genome-wide analysis of cardiac ventricular phenotypes reveals novel loci and therapeutic targets for heart failure. Nature Communications. https://doi.org/10.1038/s41467-026-69982-0

How Snails Can Help Us Grow New Eyes

A species of snail once thought to be an invasive nuisance has become a major stepping stone in the medical felid serving as a great model organism. Recent research shows that the golden apple snail could unlock the secret to regenerating lost or damaged human eyes. It essentially explains that the golden apple snail has eyes which are both structurally and genetically similar to human eyes. However unlike humans, this snail has the ability to completely regenerate its eyes if damaged or lost entirely. Further more both snails and humans need the PAX6 gene to grow eyes, Accorsi found that when she disabled that particular gene that the snails could not grow eyes at all. Understanding how these snail regenerate their eyes could provide insight on how to better treat eye injury and disease. Despite being early in the research process the articles suggests that scientists may be able to utilize these mechanics in order to develop and repair human eyes.

Saey, T. H. (2025, August 6). This snail may hold a secret to human eye regeneration. Science News. https://www.sciencenews.org/article/snail-human-eye-regeneration

Scanza, R. (2024, March 27). An eye for an eye: The apple snail. Stowers Institute. https://www.stowers.org/news/an-eye-for-an-eye-the-apple-snail

Chromosome Rearrangements: Small Changes, Big Effects

    One topic that has been getting more attention is chromosome rearrangement, a major type of chromosome mutation. These chromosome rearrangements include deletions, duplications, inversions, and translocations. Instead of changing just one gene, they move large sections of DNA around. So, many serious health conditions like developmental delays, intellectual disabilities, congenital disabilities, and complex disorders, can be caused by the loss of genetic material or disruption of genes.

Figure: Explaining types of Chromosomal Rearrangement

    The study explains even though rearrangements are not always harmful, they still affect how genes are expressed. In other cases, important genetic information might be lost or duplicated due to rearrangements. Another point is that these mutations usually happen during processes like meiosis, when reproductive cells are being formed so rearrangements can sometimes be passed down to future generations. Specifically, people get chromosomal rearrangements during the formation of egg and sperm. When pairs of chromosomes break and swap species during recombination step, rearrangement may occur if they line up unevenly or the break is not repaired properly. If these cells are involved in fertilization, the embryo can inherit extra, missing, or rearranged chromosome pieces, which are then copied into all the cells as the baby grows.  

    As mentioned, since chromosome rearrangements are linked to many genetic disorders and diseases, studying these mutations helps scientists understand how the genome works. As a result, the treatment is offered by using genetic testing to identify these rearrangements early, which helps doctors diagnose certain conditions more effectively.

Source:

https://www.labxchange.org/library/items/lb:LabXchange:dc2581f7:html:1

Additional Source:

https://learn.genetics.utah.edu/content/disorders/rearrangements/

CRISPR is Actually Fixing Genetic Diseases

 Links:

• https://www.nature.com/articles/d41586-023-03972-9 
• https://www.genome.gov/about-genomics/policy-issues/Genome-Editing

Tag: CRISPR

Commentary:

CRISPR is starting to actually fix genetic diseases like sickle cell, which is something that used to sound impossible. Instead of just treating symptoms, it goes straight to the DNA and corrects the mutation. That completely changes how we think about medicine. At the same time, it is not perfect and there are still risks, especially with off target edits and long term effects. There is also the bigger question of how far this should go, especially if people start using it for non medical reasons. Even with those concerns, this is one of the biggest breakthroughs in genetics right now and it is only going to keep growing.

How DNA Mutations Lead to Cancer

Cancer usually starts with normal cells in the body that develop mutations in their DNA, which makes them grow and divide uncontrollably. DNA is usually responsible for providing instruction to cells to help them function correctly, and if there is a change in this instruction, they might begin to act in an unusual manner, leading to cancerous growths or tumors. This change in DNA might occur in various ways, such as a person inheriting a mutation from their parent or by something in their environment, such as chemicals, UV light, or tobacco smoke.

Cancer has been found to be caused by changes in genes that control cell growth and division. Some of these genes, known as oncogenes, when mutated, make cells grow faster. Other significant genes, known as tumor suppressor genes, control the uncontrolled division of cells. When these are turned off due to mutations, cells can grow uncontrollably. Changes in these kinds of genes make it easier for cancer to develop.

By understanding the genetic basis of cancer, scientists can create targeted therapies that attack cancer cells in specific ways. This means that therapies can now be created that specifically target the genetic mutations in a patient’s cancer cells, potentially making treatment more effective and side effects fewer. However, cancer can be caused by a complex mix of genetic and environmental factors, making treatment and prevention difficult.

I think that learning about the process of DNA mutations that lead to cancer is important because it highlights the connection that exists between genetics and disease. It also highlights the importance of prevention and the need for lifestyle changes such as the avoidance of smoking and the sun. Not only does genetic research help us understand cancer, it also provides us with hope for the future and the possibility of more effective treatments for cancer.

Source: https://www.cancer.gov/about-cancer/causes-prevention/genetics/genetic-changes-infographic

Additional Link: https://www.who.int/news-room/fact-sheets/detail/cancer

Tags: #Cancer #DNA #Genetics #Mutations

Cloning Breakthroughs Reveal the Limits of DNA

 An article from 2022 reveals that over 1000 dogs have been successfully cloned. The article shows how scientists have been cloning dogs, across multiple breeds, with relatively high success when compared to other animals. This is great news for the advancements in the field of genetics, due to dogs having a number of genetic similarities when compared to humans. With this being said, studies reveal that despite being genetically identical, the dogs would sometimes look or act differently to their original counterpart. These differences are likely caused by epigenetic factors (changes in how genes are expressed, not the genes themselves) and issues with the cloning process, such as how cells are reprogrammed. With this in mind one can imagine how an individual paying over $50,000 to clone their beloved family pet may be disappointed when it looks and acts nothing like the original. Oscar winning singer and actress Barbra Streisand was one of these individuals, stating, “They have different personalities... I’m waiting for them to get older so I can see if they have her brown eyes and her seriousness.”

All in all, it is clear that cloning is more complex than just copying DNA. While it can produce animals that are genetically identical, environmental and cellular factors play a big role in how those animals actually turn out. As the process of cloning becomes more refined, and more research gets done, it is not outside the realm of possibility that there will be clones every where within the near future.

Mouse Studies Reveal Why Cloning Can Not Last Forever

 

   The article explains that cloning is not as perfect as when looking at it from a genetics point of view. Cloning is a technique used to make copies of living things, including genes, cells, tissues, and even whole animals. Scientists studied mice that were repeatedly cloned over many generations to understand what happens to their DNA over time. At the beginning, the cloned mice were normal and healthy, which suggested that cloning was working well. However, after many generations, the researchers started to notice serious genetic changes.

    The main finding was that genetic mutations slowly built up in the cloned mice. Each time a mouse was cloned, its DNA was copied, but small errors, which could be called mutations, happened during this process. As mentioned, when cloning uses the same DNA repeatedly, these mutations were passed down and accumulated over generations. Additionally, because cloning does not have the advantage like natural reproduction, where genetic material from two parents can help reduce harmful mutations. As a result, the cloned mice ended up with about three times more mutations than normal mice, some could not survive long after birth by later generations.

    This study highlights that DNA is not copied perfectly every time, and without genetic variation, mutations can possibly build up and cause serious problems. It also underlines why natural reproduction is important for maintaining healthy populations compared to the cloning technique. The research suggests that while cloning may work in the short term, there are still biological limitations and may not be a reliable long-term solution for the efforts in conserving as well as preventing extinction of species. 

Source:

https://www.reuters.com/business/healthcare-pharmaceuticals/mouse-study-shows-repeated-cloning-causes-grave-genetic-mutations-2026-03-24/

Additional Source:

https://www.scmp.com/news/asia/east-asia/article/3184261/japan-scientists-clone-freeze-dried-mice-bid-beat-extinction

Gene Therapy: A New Way to Treat Genetic Disorder

Gene therapy is a medical treatment that provides the opportunity for scientists to cure diseases by repairing or replacing defective genes. Gene therapy does not focus on the symptoms of diseases but instead focuses on the root cause of diseases. Therefore, gene therapy has the potential to become the future of medicine.

Gene therapy has made significant progress in curing rare diseases like spinal muscular atrophy and blindness. Gene therapy has improved the quality of life for many patients suffering from rare diseases. Gene therapy has the potential to become the future of medicine because it attacks the root cause of diseases.

Gene therapy, however, is expensive and not available to everyone. Gene therapy treatment is expensive, and many patients cannot afford it. Gene therapy needs to become cheaper and available to everyone. Gene therapy needs to become cheaper and available to everyone.

I think gene therapy has the potential to become the future of medicine. Gene therapy attacks the root cause of diseases. Therefore, gene therapy has the potential to become the future of medicine. Gene therapy has the potential to become the future of medicine because it has the potential to cure diseases in the future.

Source: https://www.fda.gov/vaccines-blood-biologics/cellular-gene-therapy-products/what-gene-therapy

Additional Source: https://www.genome.gov/genetics-glossary/Gene-Therapy

Tags: #GeneTherapy #Genetics #Medicine #DNA

Hope for Prevention of a Genetic Disease Before Birth

    Stanford medicine discovered a new technique to treat a rare genetic disorder called Fanconi anemia in babies before they are born. Fanconi anemia is a disease that causes a deficiency in DNA repair. So, when cells are dividing problems emerge in bone marrow not making blood and immune cells. This results in the children having lower energy levels, low platelet levels, headaches, greater risk of infections and cancer, and pale skin.

    This technique is done by a prenatal stem cell transplant. Pregnant moms donate healthy blood-forming stem cells which then are infused into her uterus through the umbilical cord. This treatment suggests that the features of the babies developing immune system can allow this transplant to settle the disorder before the baby is born. This technique is very new and Agnieszka Czechowicz, a Stanford Medicine pediatric hematologist who is responsible for this research, has only done this approach to the first research participants. Many questions still exist because the treatment has only started recently. However, a survey about what people think of the prenatal treatment concept showed that 100% of Fanconi amemia patients would undergo this prenatal diagnosis. 

Figure 1. Explanation of the Disease 

This article brings hope to everybody---but especially parents-to-be who are expecting their child to have this genetic disease. When the fetus has Fanconi anemia, they have a lower stem cell count so there is room for the mother's healthy blood-forming stem cells. This study was also tested in mice and was successful at other institutions as well. This research also believes that the children would never need subsequent therapies so they could live a typical life after birth. A major disease that could eventually affect the child later in life is cancer. If this prenatal transplant occurs, the child would not be at a high risk for cancer and have to deal with months of chemotherapy. Overall, these findings give people a reason to try to treat this disease before birth. Reading this article even affects me---someone who is not a parent to be. I think this technique should be used more to prevent long term effects. 

Source: https://med.stanford.edu/news/insights/2026/03/fanconi-anemia-prenatal-stem-cell-transplant-trial.html 

Link specifically about Fanconi anemia: https://my.clevelandclinic.org/health/diseases/14473-fanconi-anemia-fa 

Genetics, Consanguinity, and Rare Neurological Diseases

This research article explains how genetics plays a major role in brain-related disorders, especially in families where parents are closely related, known as inbreeding. This type of relationship is more common in some parts of the world, like the Middle East and Africa. The researchers observed the advances in sequencing technologies, where whole exome and genome sequencing have sped up the discovery of new genes, and helped scientists understand how consanguinity influences genetics by identifying new disease-related alleles, hypomorphic and founder alleles. Particularly, consanguinity increases the chance that a child inherits the same harmful gene from both parents causing the risk of rare diseases becoming higher like Wilson’s disease, Kleefstra syndrome, mitochondrial encephalomyopathy, lactic acidosis and stroke. This is called an autosomal recessive disorder. One of the important ideas from the article, many rare genetic diseases affect the brain and nervous system because neurons are very specialized cells that the body cannot easily regenerate so even small genetic mutations can disrupt important functions like how neurons grow, communicate, or produce energy. The suggested treatments for rare neurological disease in small groups by applying symptom management (medications, therapies, surgery), and emerging precision medicine like gene therapy to optimally reduce the risks. 

The article demonstrates why some rare neurological diseases appear more often in certain populations where consanguineous mating has become traditional and how science works toward better prevention, also early diagnosis can assist doctors manage symptoms and give genetic counseling to families.

Source:

https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2025.1494253/full#share

Additional Source:

https://www.ebsco.com/research-starters/health-and-medicine/consanguinity-and-genetic-disease

Are DNA Testing Kits Putting Your Privacy at Risk?

DNA testing kits such as 23andMe have become very popular because they help people discover their ancestry and potential health hazards. These tests are very easy to use and help people get interesting information about their own genes.

Nevertheless, there are some concerns about their use. Many companies store genetic information, and there is a potential risk that this information might be used without the individual's clear knowledge. Genetic information is very personal and also can be abused.

I think these tests are very helpful, and individuals should be aware of the potential risks. It is essential to read the privacy policy before giving out their DNA. DNA testing is very helpful, and it should be used with caution.

Source: https://www.consumerreports.org/health/dna-test-kits/privacy-and-direct-to-consumer-genetic-testing-dna-test-kits-a1187212155/

Additional Link: https://medlineplus.gov/genetics/understanding/dtcgenetictesting/directtoconsumer/

Yogi Patel
03/23/26

Tags: #DNATesting #Genetics #Privacy #DNA 

A Fish That Skips Sex and Still Survives: A Genetic Mystery

                 Most species rely on sexual reproduction to mix genes and maintain healthy genetic diversity. However, scientists have discovered a unique fish species that appears to survive without traditional reproduction. The Amazon molly, an all-female fish species, reproduces through a process called gynogenesis. This is where the presence of sperm from a related species triggers reproduction but the sperm’s DNA is not actually incorporated into the offspring.

Normally, species that reproduce without mixing genes are expected to accumulate harmful mutations over time. Without the genetic variation created by sexual reproduction, these mutations can accumulate and eventually threaten the survival of the species. Because of this, scientists once believed that asexual species would not survive for long periods of time.

Recent research has revealed that the Amazon molly may avoid this problem through a genetic process known as gene conversion. Gene conversion is a mechanism where DNA sequences can be copied from one chromosome to another, effectively repairing or replacing damaged genetic information. This process allows the fish to remove some harmful mutations and maintain a relatively healthy genome.

                                 

This discovery is significant because it challenges long-standing ideas about evolution and reproduction. Scientists previously believed that sexual reproduction was essential for long-term survival because it helps prevent the buildup of harmful mutations. However, the Amazon molly has existed for more than 100,000 years, suggesting that alternative genetic mechanisms can help maintain genetic stability.

Understanding how gene conversion works in this species could help scientists learn more about how genomes repair themselves and how evolution can occur in unexpected ways. This research may also provide insights into how genetic mutations are managed in other organisms, including humans.

Source: 

https://www.sciencenews.org/article/sex-skipping-fish-hacks-evolution-gene

Additional Link: 

https://medlineplus.gov/genetics/understanding/mutationsanddisorders/

A Pattern of Hair Loss in Genetics

  Many people believe that baldness was originally caused by their mentally health and diet, this is correct; However, in reality, genetics also contribute significantly to the risk of hair loss.

    The article explains Androgenetic alopecia (AGA), also known as pattern baldness, is one of the most common genetic conditions affecting both men and women. Researchers at the National Institute of Health show that hair loss is not caused by just one gene. Instead, multiple genes work together to influence if someone experiences hair thinning or baldness. One of the most important genes involved is the androgen receptor (AR) gene. This gene affects how hair follicles respond to hormones like dihydrotestosterone (DHT). In people with certain genetic variations, hair follicles become more sensitive to DHT, which causes them to shrink over time. Consequently, hair becomes thinner and eventually stops growing.

   Although AGA is inherited from both parents, estimating shows men have a higher tendency of hair loss (85%) compared to women (33%).

    Besides genes creating the risk, this study highlights lifestyle factors as high level of stress, poor diet, lack of sleep, low exercise and overall health can also influence how quickly hair loss happens. However, even if someone has the genes, it "does not always" mean they will definitely go bald.

    Today, treatments including oral minoxidil, finasteride and low-level laser therapy have been discovered and implemented successfully. It has partially helped people with AGA improve their appearance, thereby enhancing their quality of life. This article helps scientists better understand the genetic causes of AGA and may lead to earlier risk prediction, also more effective treatments in the future.

Source:

https://pmc.ncbi.nlm.nih.gov/articles/PMC12837269/

Another Source:

https://medlineplus.gov/genetics/condition/androgenetic-alopecia/