Monday, March 02, 2026

As health care goes digital, patients are being left behind




University of California - San Francisco





Patients are now expected to navigate much of their care online — from seeing their doctor on a screen to booking appointments, refilling prescriptions, and checking test results through health care portals.  

Yet, according to a new study by UC San Francisco, most health systems are skipping a crucial step: asking whether their patients have the access and skills to use these digital tools.  

The researchers surveyed nearly 150 clinicians and informatics leaders from health care systems across the country during the first half of 2024. Just 44% said they asked their patients if they could use digital devices. Among the institutions that serve uninsured patients, just one-third asked.  

“Not everyone can access all these new digital health tools we’re rolling out, and the people who are excluded are often those who experience worse health outcomes and limited access to care,” said Elaine C. Khoong, MD, associate professor of medicine at UCSF and a faculty member with the UCSF Action Research Center for Health.  

Khoong is the senior author of the paper, which appeared Feb. 25 in the journal JMIR Formative Research. The research was funded by the National Institutes of Health (NIH).  

As a general internist and clinical informaticist, Khoong has seen patients miss critical messages sent through the hospital’s online app because they didn’t know they had an account. Others were sent text or email links but didn’t understand how to open them.  

She and her co-authors say health care organizations should train their health workers to screen for digital readiness using standardized tools, and policy makers should create stronger incentives for health systems to do this type of assessment. They recommended that it should be incorporated into other routine screenings for things like housing instability, food insecurity, and domestic abuse.  

Those who responded to the survey said the lack of time and resources were their biggest barriers to screening. And among those who did screen, nearly half said they did not have the resources to help their patients access or learn to use the organization’s online tools.  

Since the survey, Congress made cuts to federal digital access programs. In June of 2024, the Affordable Connectivity Program, which is the nation’s largest internet subsidy for low-income households, shut down after Congress failed to renew its funding. 

Authors: Jonathan J. Shih and Andersen Yang, MPH, of UCSF, are co-first authors of the study. Other UCSF co-authors include Vivian E. Kwok, MPH, Emilia H. De Marchis, MD, Marika Dy, MPH, Carmen Ma, Nilpa D. Shah, MPH, Kelsey H. Natsuhara, MD, Urmimala Sarkar, MD, MPH, and Anjana E. Sharma, MD. For all authors, see the paper.  

Funding:  This study was supported by the NIH’s National Center for Advancing Translational Sciences (UCSF-CTSI UL1 TR001872), National Institute on Aging (P30AG015272), National Heart Lung and Blood Institute (K23HL1577500), and National Institute of Minority Health and Health Disparities (K23MD016439). Additional funders include the UCSF Population Health and Health Equity Funding and the California Health Care Foundation.  

Conflicts: None declared.  

About UCSF: The University of California, San Francisco (UCSF) is exclusively focused on the health sciences and is dedicated to promoting health worldwide through advanced biomedical research, graduate-level education in the life sciences and health professions, and excellence in patient care. UCSF Health, which serves as UCSF’s primary academic medical center, includes among the nation's top specialty hospitals and other clinical programs, and has affiliations throughout the Bay Area. UCSF School of Medicine also has a regional campus in Fresno. Learn more at ucsf.edu or see our Fact Sheet.

 

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Worming out molecular secrets behind collective behavior



Indian Institute of Science (IISc)
Swarm formation in C. elegans 

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Swarm formation in casy-1 mutant worms, demonstrating aggregate feeding and coordinated movement across the food lawn boundary

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Credit: Navneet Shahi




Studying social behaviour is crucial for understanding how certain neuromodulatory pathways – like the serotonin pathway, which influences mood and social interactions – are regulated. 

Kavita Babu, Professor at the Centre for Neuroscience (CNS), Indian Institute of Science (IISc), and her lab have been investigating these signalling mechanisms using the worm Caenorhabditis elegans. In a new study published in the Proceedings of the National Academy of Sciences, they report that the disruption of a single conserved synaptic gene alters the signalling of a specific neuropeptide, resulting in the worms showing an unusual type of swarming behaviour. This swarming resembles serotonin-driven swarming described in other species, such as desert locusts, suggesting that neuromodulatory control of social behaviour might be evolutionarily conserved. 

Navneet Shahi, PhD student at CNS and first author, was initially working on mutant worms for a different project when she noticed something unexpected. Instead of dispersing towards food that was nearby, like wild type worms, these mutants preferred to swarm collectively instead, even if it resulted in starvation. This behaviour appeared repeatedly and reproducibly over multiple experiments.

In order to delve deeper into this phenomenon, the IISc researchers reached out to physicists at Koç University, Turkey, who modelled the movement of the worms. Together, the team found that this behaviour was “self-emergent” and that even a single worm could give rise to group-level swarming over multiple generations – a novel finding. 

Using genetic manipulation techniques like CRISPR, the team then generated mutants lacking a specific gene coding for a protein called CASY-1. CASY-1 is a distant relative of the conserved calsyntenin protein found in higher organisms including humans. The mutation in CASY-1 was found to disrupt signalling by a neuropeptide called pigment dispersing factor (PDF). This essentially unlocked serotonin signalling pathways that are usually kept in check, driving the worms into their crowded, swarming state. Studying these targeted genetic mutants led the researchers to ask the broader question of whether the roots of social behaviour might be genetically encoded. 

The researchers also wanted to see if they could control this behaviour in real time via optogenetics – using light pulses to instantly activate or silence specific neurons and watching whether the worms huddled or dispersed. Capturing this behaviour in a time-lapse video was “intriguing,” says Babu.  

“Initially, we suspected the role of pheromones or external environmental factors in this aggregative behaviour. However, we soon realised that was not the case,” adds Shahi. They found that serotonergic signalling was the master regulator, essentially “tuning” how these worms interact as a group.

While social feeding behaviours have been studied by researchers in the past, such collective movement is relatively less explored. This piqued Shahi’s interest in investigating the molecular pathways involved. C. elegans also makes for a great model system mainly due to its well-characterised nervous system and the ease of studying population-level behaviours within a short period of time, especially those arising repeatedly and reproducibly. 

In future studies, the team plans to investigate how specific genetic perturbations produce different outcomes under varying environmental conditions, in order to understand fundamental rules governing collective behaviour across species. 


Network-like aggregation patterns formed by casy-1 mutants under starvation conditions 

Network-like aggregation patterns formed by casy-1 mutants under starvation conditions

Credit

Navneet Shahi

Time-lapse video of swarm formation in casy-1 mutant worms, demonstrating aggregate feeding and coordinated movement across the food lawn boundary [VIDEO] 

SPAGYRIC HERBALISM

Modern science catches up with native knowledge with discovery of Clerodendrum kelli





Ateneo de Manila University

Clerodendrum kelli, endemic to Nueva Ecija, Philippines 

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Clerodendrum kelli—a newly described, Critically Endangered species found only in Nueva Ecija, Philippines— shown in photographs highlighting its overall habit (a), distinctive leaves (b), and flowers with immature fruits (c-d). 

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Credit: Tobias et al., 2025





The indigenous Bugkalot people of Nueva Ecija call it “kelli”: a plant with white, starburst-like flowers and oval-shaped leaves that are traditionally mashed and mixed with food to treat ailing dogs. But despite this local familiarity, science has only now been able to identify it as a distinct species and given it a formal scientific name.

Clerodendrum kelli is a small shrub that grows in the humid montane rainforests of the Caraballo Mountain Range, specifically in two localities—Mt. Meddengen and Sitio Binbin. Nestled within the Pantabangan-Carrangalan Watershed Forest Reserve (PCWFR), this rare species is a subtle presence in the landscape, never appearing abundant nor easily encountered.

Reaching about a meter in height, the plant stands out with its green leaves accented by pale purple undersides. Its white, tube-shaped flowers bloom from reddish-pink bases and are arranged in loose, open clusters, unlike the dense groupings of some Clerodendrum species. 

The documented medicinal use of the plant reflects the Bugkalot’s deep understanding of the species and its habitat. Importantly, there is no indication that their traditional use has led to the plant’s scarcity. Rather, habitat loss from land conversion and natural landslides poses the greatest known threat to its survival.

Despite formal protection, this ongoing habitat degradation has reduced C. kelli’s range. This shrinkage is especially severe along the steep ridges where the species grows. As forest clearing and slope failures continue, C. kelli is now assessed as Critically Endangered and is known to exist in a total area of just 8 square kilometers. Researchers warn that, without stronger protection, the species could vanish.

The underscores how the discovery of C. kelli is more than a scientific milestone; it highlights how Indigenous knowledge and science can overlap—bridging traditional and formal understanding of biodiversity. 

David Justin R. Ples, John Patykowski, Leonardo C. Udasco, John Charles A. Altomonte, Adriane B. Tobias, and Rene Alfred Anton Bustamante published their study, Clerodendrum kelli (Lamiaceae), a new species from Carranglan, Nueva Ecija, Philippines, and lectotypification of Clerodendrum mindorense in December 2025 in the Gardens’ Bulletin Singapore.