Optimizing Navigation and Text Messaging Interventions to Promote Participation in a Food Is Medicine Program Among People Participating in Cardiac Rehabilitation: Human-Centered Design Study

Background: Food Is Medicine (FIM) programs integrate interventions such as medically tailored meals or produce prescriptions into clinical care. However, there is limited evidence on how to design these programs to be responsive to the lived experiences of participants to optimize initiation, engagement, and long-term retention. Objective: The objective of the study was to develop interventions to promote initiation, engagement, and retention in FIM programs that are responsive to the lived experiences of participants. Methods: We used a human-centered design approach to engage current and former cardiac rehabilitation participants in the development of interventions to promote participation and engagement in a FIM program. We recruited participants through invitations sent via electronic health record messages. We interviewed participants about their experiences, preferences, and unmet needs related to healthy eating and program design. Additionally, we elicited participant feedback on draft versions of patient navigator scripts and text messages promoting healthy eating habits. Results: A total of six participants identified themes across Theory of Planned Behavior constructs and emergent themes, including the cost of healthy food, cultural appropriateness, clear and timely communication, transportation, local food access, scheduling flexibility, the ability to provide feedback to the program, and personalized support for navigating food resources. Participants described financial strain as a key barrier to healthy eating and noted that social influence often shaped eating behaviors. Feedback on navigator scripts led to revisions clarifying program logistics, addressing barriers such as language and cultural dietary restrictions, and tailoring positive endorsements to individual health goals. Based on participant feedback, text messages were made more concise, reframed positively (eg, humor and gratitude), and encouraged to be warmer, with respectful language that is easy to understand, while avoiding stigmatizing or overly clinical phrasing. Participants also suggested that messages should reflect empathy and offer actionable information to increase trust and engagement with the program. Trust in the health care system and a sense of dignity in receiving food support emerged as critical themes influencing overall satisfaction and retention. Participants emphasized that endorsement from their health care team and cardiologist was important for building trust in the program. Communication between health care navigators and FIM navigators could help reduce the burden placed on patients to navigate food resources. Conclusions: Using a human-centered design approach, we gained insights about participant-identified needs for navigation scripts and text messages that are culturally sensitive and personalized to promote optimal participation in a FIM program.
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STAT+: FDA to speed up review of three psychedelics as mental health treatments

The Food and Drug Administration will accelerate its review of psychedelic drugs developed by Compass Pathways, the Usona Institute, and Transcend Therapeutics for mental health disorders, as part of the Trump administration’s plan to boost access to the controversial yet promising medications.

The agency will grant priority review vouchers specifically to Compass’ psilocybin product for treatment-resistant depression, Usona’s similar medicine for major depressive disorder, and an MDMA-like treatment for post-traumatic stress disorder from Transcend. 

The FDA identified the medications receiving the vouchers, but not the companies developing them. Compass, Usona, and Transcend confirmed they received vouchers.

Continue to STAT+ to read the full story…

Fibroblast Subset Directs Immune Cell Positioning in Lymph Nodes

Researchers at the University of Lausanne have identified a specialized fibroblast population that actively organizes immune cell interactions within lymph nodes, revealing a key mechanism underlying effective T cell responses to infection and cancer.

The study, published in Immunity, shows that stromal cells, long considered primarily structural, play a central role in orchestrating where and how immune cells meet, with direct consequences for immune activation and memory formation.

Spatial organization drives immune efficiency

Lymph nodes act as surveillance hubs of the immune system, filtering lymphatic fluid and coordinating responses to pathogens or tumor cells. Within these small, highly organized structures, immune cells are not randomly distributed. Instead, they occupy defined niches that facilitate efficient communication.

Cytotoxic T lymphocytes (CTLs), for example, are typically positioned in central regions of the lymph node, where they interact with type 1 dendritic cells (cDC1s) that present antigen and initiate activation. As explained by the study authors, “cytotoxic T lymphocytes are typically found in central regions of the lymph node, where they colocalize and interact with specialized cells called type 1 dendritic cells that present danger signals to them.”

While the importance of this organization has long been appreciated, the mechanisms guiding immune cells to the correct locations have remained incompletely understood.

A fibroblast niche organizes T cell positioning

To address this question, the Lausanne team focused on fibroblasts, a class of stromal cells that form the structural backbone of lymphoid tissues. Using mouse models and human lymph node samples, they identified a distinct subset of fibroblasts located in the central compartment.

These fibroblasts are characterized by expression of MAdCAM1 and by their production of high levels of the chemokine CCL19. This signaling molecule acts as an attractant that guides cytotoxic T cells into proximity with dendritic cells, enabling productive immune interactions. As the researchers note, CCL19 “acts as an ‘attractant signal’ for cytotoxic T lymphocytes, bringing them into physical contact with type 1 dendritic cells.”

By shaping this spatial organization, the fibroblast subset creates a functional niche that promotes T cell activation. When this system was disrupted, cytotoxic T cells failed to position correctly and showed impaired differentiation into memory T cells, highlighting the importance of tissue architecture for long-term immunity.

Notch signaling maintains the stromal network

The researchers also identified the molecular pathway that sustains this fibroblast population. A signaling axis involving Notch2 and its downstream mediator RBPj was found to be essential for maintaining the identity and activity of the CCL19-producing fibroblasts.

In addition, Jagged-1, a ligand produced primarily by dendritic cells, appears to initiate or reinforce this signaling loop. This suggests a feedback mechanism in which immune cells and stromal cells cooperate to maintain the lymph node architecture.

According to the scientists, this pathway must remain active throughout life. When Notch2 signaling was disrupted in fibroblasts, the structural integrity of the niche was lost, leading to defective T cell responses and reduced formation of memory cells.

A conserved mechanism across immune tissues

Although the study focused on lymph nodes, the same organizational principles appear to extend to other immune organs. The researchers observed similar regulation of CCL19 production in the spleen and Peyer’s patches, which are involved in blood filtration and intestinal immunity.

Comparable fibroblast populations were also identified in human lymph nodes, suggesting that this mechanism is conserved across species and relevant to human immune function.

Implications for immunotherapy and vaccines

The findings add to a growing body of evidence that stromal cells play active roles in shaping immune responses. Rather than acting as passive scaffolds, fibroblasts help define where immune interactions occur and how effectively they proceed.

This has important implications for disease. In cancer, for example, ineffective T cell responses may result not only from intrinsic immune dysfunction but also from disrupted tissue organization that prevents optimal cell–cell interactions.

In vaccination, enhancing the formation or function of such stromal niches could improve immune activation and the development of long-lasting memory responses.

Looking ahead

The identification of a fibroblast-driven mechanism for organizing immune cell positioning provides a new foundation for understanding how immune responses are initiated and maintained.

Future research will be needed to explore whether targeting stromal signaling pathways, such as Notch2, can be used to modulate immune responses in therapeutic settings. While such approaches remain speculative, they highlight the potential of integrating tissue architecture into the design of next-generation immunotherapies.

“Overall, these findings deepen our understanding of the organization of the immune system and how effective T cell responses against infections and cancer are initiated,” said Sanjiv Luther, PhD, senior author of the study. “In the future, this knowledge could help improve vaccine design and clarify why immune defenses sometimes fail against certain pathogens or tumors.”

The post Fibroblast Subset Directs Immune Cell Positioning in Lymph Nodes appeared first on Inside Precision Medicine.

Cross-reactive anti-prophage antibodies and bacterial heteroresistance implicated in phage therapeutic failure

Nature Medicine, Published online: 24 April 2026; doi:10.1038/s41591-026-04301-0

A 22-year-old patient with cystic fibrosis and chronic, drug-resistant Bordetella bronchialis infection received compassionate-use phage therapy. Serum samples revealed that pre-existing antiphage immunity existed before treatment, indicating that future studies must evaluate antiphage immunity across the entire treatment regimen.

Opinion: I started medical school at 69 and will begin residency at 72. Here’s what I learned

Since I was 7, my goal has been to become a doctor. But life had other plans. I grew up in a blue-collar family in Levittown, N.Y., in the 1950s and ’60s, so it often felt like the world ended in Jersey. When I landed in Lansing, Mich., to attend Michigan State, I expected the Rocky Mountains to be visible. I ended up getting a degree in nursing, but I always had another goal: to become an M.D.

This year, at the age of nearly 73, my dream will finally come true. Soon after, I will start my residency in family medicine. My perspective on medical school and medicine is unique not only because I attended late in life, but because it came after more than 40 years as a nurse practitioner.

Read the rest…

STAT+: Trump celebrates closing first round of drug pricing deals, promises more ahead

WASHINGTON — President Trump heralded a drug pricing agreement with Regeneron on Thursday, closing the last of 17 deals initially sought by the White House last year.

Regeneron, as part of the private deal, will reduce prices on drugs to Medicaid, provide cholesterol medicine Praluent on TrumpRx for $225, and invest $27 billion in drug development in the United States.

On the same day, Regeneron also announced Food and Drug Administration approval of Otarmeni, the first gene therapy to be greenlit under the agency’s new National Priority Voucher program. In early trials, the drug provided modest hearing gains for people with a rare type of hearing loss, though its development has received pushback from parts of the Deaf community. Regeneron plans to offer the drug at no cost to American patients. 

Continue to STAT+ to read the full story…

How to De-Escalate an Autistic Meltdown

A common misconception about tantrums and meltdowns is that they’re interchangeable. But while they share some similarities in their initial expression — crying, screaming, door slamming, harsh words — they’re actually quite different. Dealing with a meltdown requires a more specialized approach, especially with kids on the autism spectrum.

What is a tantrum vs a meltdown?

The two events happen for different reasons. A child throws a tantrum when they’re angry or frustrated, acting out because they feel an injustice has been done to them. They are aware of what they’re doing and still have some sense of control. And if a child’s tantrum is ignored by their parent or caregiver, it will likely subside quickly.

Meltdowns, on the other hand, happen involuntarily and seemingly out of nowhere. They also tend to become much more intense than a typical tantrum and may involve violent behavior such as head banging, hitting others, and damaging property. Once a meltdown has started, intervention is needed to stop it, whether it’s self-imposed (e.g., removing oneself from the trigger) or external (e.g., support from the parent or caregiver). The event can last between a few minutes and several hours.

Tantrums are common among all children, but kids with autism are more likely to experience meltdowns of varying degrees, says Conner Black, PhD, associate director of the Autism Center at the Child Mind Institute.

What are the stages of an autistic meltdown?

For a child with autism, a meltdown is triggered when they become overwhelmed, whether it’s by stress, powerful emotions, sensory input, change, or something else. Their sympathetic nervous system — the network in the body responsible for our “fight-or-flight” response — goes into overdrive and they lose control.

There are several stages to an autistic meltdown and understanding them can help you know how to respond effectively. The duration and intensity of the meltdown depend on whether intervention, including learned coping skills, can stop the child from reaching a crisis point, Dr. Black explains. “Certain skills may not work every time, and that’s really no one’s fault,” he says, but once a child reaches that crisis stage, intervention is no longer useful. He describes the course of a meltdown via the phases of the behavior escalation cycle:

  • Calm: “This is basically the valley or plain on the side of mountain, which is considered the baseline, when the child is happy, relaxed, and at their best,” Dr. Black says. For instance, in a classroom setting, a student’s behavior might be described as cooperative and responsive to instruction. These behaviors are specific to the individual, so it helps to recognize what that looks like in your child.
  • Trigger: While triggers can vary, Dr. Black says, there are some common ones that he typically encounters in kids with autism. “They’re often related to the misunderstanding of social situations, a lack of time to engage with their preferred interests, a sudden change in their schedule, or a transition that was unexpected,” he says. “It could also be certain sensory aversion, so things like loud noises or loud conversations. It could even sometimes be as simple as how food is presented on someone’s plate.” The child’s response to that trigger can vary depending on their current internal state or outside environmental factors. But if the trigger isn’t removed or is strong enough to dysregulate the child, they’re going to enter the next phase: agitation.
  • Agitation: At this point, the child will begin to display behaviors that indicate they are no longer in their calm phase. They might start fidgeting, darting their eyes back and forth, or tapping their hands. For other kids, it could look like total disengagement or staring into space. While removing the trigger might still work at the start of this phase, attempts at problem-solving may backfire and push the child to escalate their behaviors.
  • Acceleration/Escalation: “This is really when you start seeing a ramping up of behaviors,” Dr. Black says. “Anything from screaming to throwing toys to aggressing toward the caregiver or whoever’s in the room. Or they could turn that aggression on themselves, whether that’s head banging or hitting themselves repeatedly.” The child may become resistant to intervention and argumentative.
  • Peak/Crisis: At this phase, the child hasn’t responded to attempts to de-escalate and will continue to engage in potentially dangerous behaviors. “When thinking about the crisis point, I think about behaviors that are often going to require a higher level of care. So that could be violence, self-injurious behaviors, or even intense suicidal ideation,” says Dr. Black. To be able to distinguish between escalation and crisis, he adds, it’s important to know what the top level of your child’s behaviors look like. “Throwing things could be the escalation stage, and then the next stage is actually when they’re destroying property,” Dr. Black explains.
  • De-escalation: Finally, the intensity of the behavior begins to subside. The child may appear disoriented, confused, and tired. They will gradually become calmer.
  • Recovery: The child is officially in this phase when they’re fully back at their baseline, Dr. Black says. The behaviors you’ll see at this phase are the same ones you see when they’re in their calm phase.

How to prevent meltdown escalation

Once a child has started to experience a meltdown, it’s hard to get them back to baseline. Depending on the phase, certain interventions may help while others might make things worse.

First, you want to avoid triggers, Dr. Black advises. “Autistic individuals can have a lot of difficulty talking about or even understanding what their emotions are. So, it’s typically up to the parents or caregivers to identify what things can trigger them in a certain way,” he says.

For instance, some kids with autism really thrive with routine and can become agitated when there are unexpected changes. Having a visual schedule of exactly what’s going to happen during the day can help prevent that, says Dr. Black. “If you know there’s going to be a change, you can pick a time, maybe a couple of days in advance, where you talk to them about what that difference is going to be.”

And if your child is known to have meltdowns in public spaces, says Dr. Black, think about what those outside triggers are and how to prepare ahead of time. If they tend to get upset by loud noises, for example, a pair of headphones can be an item — along with phone, wallet, keys! — that you never leave the house without. If possible, work with a mental health professional to identify triggers and develop an escalation plan. 

What to do in the agitation phase

If your child has reached the agitation phase, says Dr. Black, you can try to intervene with coping skills that you’ve learned in therapy, whether it’s something as simple as removing a trigger or giving them a preferred activity in that moment to help prevent their behaviors from escalating.

Sometimes kids encounter an environment, like school, that is beyond your control but contains a wide range of potential triggers and pushes them into the agitation phase. Because their house is a more comfortable environment, kids with autism may keep themselves together at school and then quickly melt down once they get home.

“In that case, for that first hour, let them have their alone time where they can just chill,” Dr. Black suggests. “It could be eating snacks, watching a TV show, or even just sitting quietly in their room. Maybe it’s engaging in some sort of self-stimming behavior.” This can give them the space to cool down and take some time away from any sort of outside stimuli that could push them to move from the agitation phase into the escalation point of a meltdown.

What to do in the acceleration/escalation phase

It can be hard to anticipate every possible trigger, especially when there might be multiple at once on any given day. And sometimes coping strategies aren’t enough to keep a child from escalating or the trigger is too strong. Still, there are some things that Dr. Black suggests you can do to try to keep them from reaching that crisis point.

Keep communication short and concrete

Too much talking can be overwhelming for the child at this stage and might push them to crisis, Dr. Black explains, so the less communication the better. “A simple instruction looks like using just a short sentence. Say there’s a loud noise, for example. You can just say, ‘Go get your headphones,’” he says.

Use visual prompts

Instead of trying to communicate verbally, you can hold up a visual prompt. “If your child has already been working with a therapist or if they’ve learned some coping skills, it would be helpful to have a laminated sheet readily available with their name and pictures of four different coping skill options — like headphones, deep breathing, coloring, sitting alone in their room.”

Dr. Black advises only giving a few options, as it’s already difficult for the child to focus while they’re upset. Additionally, if they don’t choose one right away and you want to try again, he recommends that you “let there be silence for 60 seconds at minimum between prompts, because you don’t want to over-prompt and exacerbate the situation even more.” But providing these choices allows them to maintain their autonomy, which is important during escalation.

What to do in the peak/crisis phase

“Once they get to that apex, they’ve reached the point of no return and just need to go through the process,” says Dr. Black. He stresses that at this point, communication needs to be very minimal or nonexistent.

When maintaining safety is the focus

“The goal switches to really being able to maintain safety for both the individual as well as the family members in the area,” Dr. Black explains. “If they’re harming themselves, such as head banging, move them to their bed so at least it’s on something that’s softer and not going to potentially cause significant injury.”

Efforts to make sure the child is as safe as possible can put you in harm’s way. “If there’s aggression, you can be watching and making sure they’re safe but not getting too close where you could get aggressed upon,” says Dr. Black.

If there are other children in the house, Dr. Black advises that you make plans for how to keep them safe. “Maybe they can go to their room and lock the door while it’s happening,” he says. “Some families have the other kids go to the car and sit and wait until their parents come out to get them.”

When you need emergency services

If the crisis phase goes on for a long period of time, says Dr. Black, “this is when you’d have to think about calling 911. And as kids become adolescents, the response is going to look a lot different. Because of size alone, it’s a little bit easier to manage the situation in a 5-year-old than it would be in a 15-year-old.”

Dr. Black advises that you get in touch with your local police department or EMT service in advance to let them know you have a child with autism in the home, so if you call during an emergency, they are already familiar with your family.

What to do in the de-escalation and recovery phases

Watch for signs that the child is beginning to de-escalate, Dr. Black says. “All you’re doing at this point is maintaining safety until you’re really able to see a lessening of the intensity of the behavior or the frequency decreases a little bit.” Then, he says, you can start to slowly communicate with them again. You really need to be careful here, because it may look like they’re calming down, but if they’re pushed too hard and they’re not ready to talk, they might go right back into crisis phase.

At the recovery phase, “the whole family is recovering,” Dr. Black says. It’s at this point where you can all debrief and work through what may have triggered this escalation and how to possibly prevent it in the future.

“Make sure you’re also debriefing separately with the other siblings in the home after it happens,” Dr. Black adds. “They’ve just witnessed something that may have been traumatic and really stressful for them. There’s often so much focus given to the child with the big behaviors in the moment.”

Medication treatment

Sometimes, a child or teen may suffer from frequent meltdowns to the point that it’s interfering with their quality of life and their ability to attend school. At that time, a mental health professional may recommend working with a psychiatrist to add medication to their treatment.

The type of medication depends on the underlying mechanisms contributing to the behaviors, Dr. Black says. “For instance, if it’s coming from significant anxiety, psychiatrists may prescribe an SSRI like Prozac or Zoloft. If a child has co-occurring ADHD, which is very common, stimulant or non-stimulant ADHD medication might be recommended. And if the behavior stems from irritability or some kind of rigidity, antipsychotic medications like Abilify or risperidone can be useful.”

Improvement is possible

Dr. Black notes that when kids receive the support they need, their quality of life really improves. “I’ve seen that when families work with therapists to come up with different behavioral plans and figure out a proper medication regimen, there’s a lot of improvement in behavior challenges,” he says. “The duration, frequency, and intensity of the meltdowns decrease as the child learns how to handle strong emotions and parents learn how to respond to them. And the medication can help to increase their likelihood of being able to use coping skills or regulation techniques to calm back down when they start to get really frustrated.”

The post How to De-Escalate an Autistic Meltdown appeared first on Child Mind Institute.

Medical Students and Clinicians’ Perceptions of Social Media Direct-to-Consumer Advertising and Medication Requests

This study examines how medical students and clinicians report experiencing patient medication requests associated with prescription drug direct-to-consumer advertising on social media; survey data from 98 respondents indicate that those providing both in-person and virtual care encounter more frequent requests for medications advertised online, particularly branded glucagon-like peptide-1 (GLP-1) weight loss drugs.
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