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Medical Bulletin 06/August/2025

Here are the top medical news for the day:

This Brain Hormone May Control Blood Sugar Without Insulin

Here are the top medical news for the day:

This Brain Hormone May Control Blood Sugar Without Insulin

An analysis published in The Journal of Clinical Investigation has revealed new insights into how the hormone leptin might be used to manage diabetic ketoacidosis (DKA), a serious and potentially fatal complication of type 1 diabetes. The research, based on over a decade of findings including work from UW Medicine, shows that leptin may help regulate blood sugar levels even in the absence of insulin—challenging long-standing beliefs in diabetes care.

Diabetic ketoacidosis occurs when the body lacks insulin and begins breaking down fat for energy, leading to a dangerous buildup of glucose and ketoacids in the bloodstream. Traditionally, insulin has been the only effective treatment. However, this new analysis points to the brain—and specifically, the hormone leptin—as a key regulator in this process.

Leptin, produced by fat cells and transported to the brain, plays a role in controlling appetite and energy balance. According to senior author Dr. Michael Schwartz, professor of medicine at the University of Washington School of Medicine, when insulin is absent, "the brain gets the message that the body is out of fuel, even if it's not. This information is being communicated in part by a low blood level of the hormone leptin."

Schwartz and his team first explored this idea in 2011 by injecting leptin directly into the brains of rats and mice with type 1 diabetes. Surprisingly, within four days, their blood sugar and ketone levels normalized, despite having virtually no insulin. "I think the most amazing thing is that the blood sugars just didn't come down, but that the levels stayed down," said Schwartz.

At the time, the discovery was largely overlooked. Now, with a deeper understanding of the mechanism, Schwartz plans to seek FDA approval for human trials. If successful, this could lead to a paradigm shift in how type 1 diabetes is treated—potentially without insulin.

The findings suggest the brain, not just the pancreas, could be a key target in future diabetes therapies, offering hope for millions worldwide.

Reference: https://newsroom.uw.edu/news-releases/brain-might-become-target-of-new-t...

Adults Born Preterm Face Higher Risk of Chronic Diseases: Study Finds

The longest-running U.S. study on preterm birth has found that being born early can have lasting health consequences well into adulthood—affecting everything from heart health to mental wellbeing. The findings, published in the Journal of the American Medical Association (JAMA), highlight the urgent need to include birth history in adult medical records and develop long-term clinical guidelines for individuals born preterm.

The research, led by University of Rhode Island College of Nursing Professor Amy D’Agata, continues work that began in the 1980s with a cohort of infants born preterm at Women & Infants Hospital. The longitudinal study has followed 215 participants, including both preterm (born between 22 to 36 weeks of gestation) and full-term infants.

As these individuals approach their 40s, the data reveal clear health disparities between those born preterm and their full-term peers. According to D’Agata, preterm individuals are showing higher rates of high blood pressure, elevated cholesterol, abdominal fat, and reduced bone density. Psychologically, they are more prone to internalizing stress, which manifests as higher levels of anxiety and depression.

“Preterm birth is not just a neonatal issue. It, in fact, is a lifelong condition,” said D’Agata. “We are now realizing that there is a very strong link between what happens to you early in life and later health outcomes.”

One critical finding is the lack of birth history documentation in adult healthcare. Many clinicians are unaware if a patient was born preterm, making it harder to assess risk for chronic conditions. D’Agata is calling for birth history to be a standard part of adult medical intake and for targeted screening guidelines to be developed.

“We believe a paradigm shift is needed in health care that recognizes preterm birth as a chronic condition requiring lifelong monitoring and support,” she emphasized.

This research is helping reshape how medicine views early birth—not as a one-time event, but a factor with lifelong implications.

Reference: D’Agata AL, Eaton C, Smith T, et al. Psychological and Physical Health of a Preterm Birth Cohort at Age 35 Years. JAMA Netw Open. 2025;8(7):e2522599. doi:10.1001/jamanetworkopen.2025.22599

Study Reveals Social Factors that May Triple the Risk of Long Covid

A new nationwide study led by investigators at Mass General Brigham has revealed that social risk factors such as financial hardship, food insecurity, and limited access to healthcare are significantly associated with a higher risk of developing long COVID. The findings, published in the Annals of Internal Medicine, offer vital insights into the long-term impact of the COVID-19 pandemic and underscore the need to address social determinants of health in efforts to combat long COVID.

Long COVID refers to a broad spectrum of symptoms that persist for three months or more following a SARS-CoV-2 infection. While scientific understanding of the condition has grown through the National Institutes of Health’s RECOVER (Researching COVID to Enhance Recovery) Initiative, the influence of social factors has remained less clear—until now.

To better understand this relationship, researchers analyzed data from 3,700 participants in the RECOVER-Adult cohort. These individuals had contracted COVID-19 during the Omicron

variant surge and completed comprehensive surveys at the time of infection and again six months later to assess for long COVID symptoms. Participants came from 33 states, Washington, D.C., and Puerto Rico, and enrolled between October 2021 and November 2023.

The researchers assessed four major categories of social risk: economic instability, education and language barriers, healthcare access and quality, and lack of community support. They also used ZIP code-level data to measure factors like household crowding.

After accounting for variables such as vaccination status, hospitalization, age, sex, and race, the study found that nearly all individual-level social risk factors were strongly associated with a two- to three-fold increase in the likelihood of developing long COVID. Living in more crowded areas further raised the risk. The burden of these risk factors was higher among racially and ethnically minoritized groups, but their impact on long COVID risk was consistent across all racial categories.

"While rates of COVID-19 have decreased, long COVID is a chronic disease that many people still suffer from," said senior author Dr. Elizabeth Karlson. "Future interventions must address these factors to effectively reduce adverse outcomes among people with high burden of social risk factors."

Researchers plan to expand the study to assess whether these trends hold for children and explore long COVID symptoms lasting a year or more.

References: Candace H. Feldman, Leah Santacroce, Ingrid V. Bassett, et al. Social Determinants of Health and Risk for Long COVID in the U.S. RECOVER-Adult Cohort. Ann Intern Med. [Epub 29 July 2025]. doi:10.7326/ANNALS-24-01971

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What’s the formula for longevity?

WINNIFRED ‘MS PEARL’ Stern lived to the remarkable age of 108 years. When asked the age-old question about the secret to a long life, her answer was always succinct: “God.” A wife, mother, and the oldest member of the Golden Designs programme, Ms...

WINNIFRED ‘MS PEARL’ Stern lived to the remarkable age of 108 years. When asked the age-old question about the secret to a long life, her answer was always succinct: “God.” A wife, mother, and the oldest member of the Golden Designs programme, Ms...

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Rituximab for lupus treatment now covered by NHF

Consultant rheumatologist and president of the Lupus Foundation of Jamaica, Dr Desiree Tulloch-Reid, is commending the Jamaican Government and the National Health Fund (NHF) for their decision to include intravenous Rituximab on the list of vital,...

Consultant rheumatologist and president of the Lupus Foundation of Jamaica, Dr Desiree Tulloch-Reid, is commending the Jamaican Government and the National Health Fund (NHF) for their decision to include intravenous Rituximab on the list of vital,...

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Robotic Cardiac Surgery delivers better outcomes for patients

ROBOT-ASSISTED CARDIAC surgery is heart surgery done through very small incisions in the chest. The surgeons use tiny instruments and robot-controlled tools to do heart surgery in a way that is much less invasive than open-heart surgery. This...

ROBOT-ASSISTED CARDIAC surgery is heart surgery done through very small incisions in the chest. The surgeons use tiny instruments and robot-controlled tools to do heart surgery in a way that is much less invasive than open-heart surgery. This...

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Tuberculosis or ‘TB’ is still with us

A cough that will not go away should prompt you to get checked for tuberculosis or TB. Tuberculosis is an infectious disease caused by the germ Mycobacterium tuberculosis or Mtb that affects mainly the lungs. TB can also affect the spine (...

A cough that will not go away should prompt you to get checked for tuberculosis or TB. Tuberculosis is an infectious disease caused by the germ Mycobacterium tuberculosis or Mtb that affects mainly the lungs. TB can also affect the spine (...

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Medical News, Health News Latest, Medical News Today - Medical Dialogues |

Study Reveals Social Factors that May Triple the Risk of Long Covid

A new nationwide study led by investigators at Mass General Brigham has revealed that social risk factors such as financial hardship, food insecurity, and limited access to healthcare are significantly associated with a higher risk of developing long COVID.

The findings, published in the Annals of Internal Medicine, offer vital insights into the long-term impact of the COVID-19 pandemic and underscore the need to address social determinants of health in efforts to combat long COVID.

Long COVID refers to a broad spectrum of symptoms that persist for three months or more following a SARS-CoV-2 infection. While scientific understanding of the condition has grown through the National Institutes of Health’s RECOVER (Researching COVID to Enhance Recovery) Initiative, the influence of social factors has remained less clear—until now.

To better understand this relationship, researchers analyzed data from 3,700 participants in the RECOVER-Adult cohort. These individuals had contracted COVID-19 during the Omicron variant surge and completed comprehensive surveys at the time of infection and again six months later to assess for long COVID symptoms. Participants came from 33 states, Washington, D.C., and Puerto Rico, and enrolled between October 2021 and November 2023.

The researchers assessed four major categories of social risk: economic instability, education and language barriers, healthcare access and quality, and lack of community support. They also used ZIP code-level data to measure factors like household crowding.

After accounting for variables such as vaccination status, hospitalization, age, sex, and race, the study found that nearly all individual-level social risk factors were strongly associated with a two- to three-fold increase in the likelihood of developing long COVID. Living in more crowded areas further raised the risk. The burden of these risk factors was higher among racially and ethnically minoritized groups, but their impact on long COVID risk was consistent across all racial categories.

"While rates of COVID-19 have decreased, long COVID is a chronic disease that many people still suffer from," said senior author Dr. Elizabeth Karlson. "Future interventions must address these factors to effectively reduce adverse outcomes among people with high burden of social risk factors."

Researchers plan to expand the study to assess whether these trends hold for children and explore long COVID symptoms lasting a year or more.

References: Candace H. Feldman, Leah Santacroce, Ingrid V. Bassett, et al. Social Determinants of Health and Risk for Long COVID in the U.S. RECOVER-Adult Cohort. Ann Intern Med. [Epub 29 July 2025]. doi:10.7326/ANNALS-24-01971

2 months 3 weeks ago

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No criminal gangs in Grenada; collaboration among criminal elements

Randy Connaught: To say we have criminal gangs in Grenada would be based only on assumptions and not supported by intelligence of facts

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Knee-jerk reactions and awareness haven’t and will not work!!

In 2024, the Cabinet of Grenada engaged our “Project STOP ‘n’ THINK” but nothing has happened to engage another 15 communities in 2025, and follow-up in 8 communities already serviced

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News Archives - Healthy Caribbean Coalition

Webinar: Caribbean Regional Stakeholder Meeting on the 4th UN High-Level Meeting on NCDs and Mental Health

Webinar: Caribbean Regional Stakeholder Meeting on the 4th UN High-Level Meeting on NCDs and Mental Health

On Wednesday 30 July 2025, the Healthy Caribbean Coalition, in partnership with the Pan American Health Organisation, convened a virtual Caribbean Regional Stakeholder Meeting in support of the 4th UN High-Level Meeting (HLM4) on Non-communicable Diseases (NCDs) including Mental Health. This timely discussion also marked the 18th anniversary of the landmark 2007 Port of Spain Declaration on NCDs.

With over 200 participants from civil society, government, regional institutions, and global partners, the webinar fostered rich dialogue around the Caribbean’s progress in tackling NCDs, and the urgent need for renewed leadership and bold action to meet 2030 Sustainable Development Goals.

The webinar covered the following objectives:

  • Reflect on progress on NCDs in the Caribbean since the 2007 Port of Spain Declaration, including key achievements, challenges, and lessons learned.
  • Explored NCD priorities and strategies needed within CARICOM to accelerate meaningful action on NCDs – actions which prevent new NCDs and improve the lives of people living with NCDs in lead up to and beyond the HLM4.

Presenters and Panellists

Panellist Quotes

1 of 15

Visit our HLM4 dedicated webpage.

The post appeared first on Healthy Caribbean Coalition.

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Webinar: Putting People & Health First in Disaster Preparedness, Response, and Recovery Copy

Webinar: Putting People & Health First in Disaster Preparedness, Response, and Recovery

On Monday 16th June 2025, the Healthy Caribbean Coalition (HCC), in collaboration with Pan American Health Organization (PAHO) and Earth Medic Earth Nurse, hosted a regional webinar entitled: Putting People & Health First in Disaster Preparedness, Response, and Recovery. This session drew over 200 registrants and brought together regional stakeholders, the media, experts, and advocates from across sectors to explore critical intersections between climate change, disaster preparedness, and health, with a special focus on ensuring inclusive, people-centered approaches for vulnerable populations, particularly persons living with noncommunicable diseases (PLWNCDs).

The webinar covered the following objectives:

Presenters and Panellists

Useful Resources

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Let’s re-engage Grenada’s healthy guidelines

Healthy Choices for Healthy Living Guidelines is a vital national tool designed to promote nutrition, wellness, and active living across our communities

View the full post Let’s re-engage Grenada’s healthy guidelines on NOW Grenada.

Healthy Choices for Healthy Living Guidelines is a vital national tool designed to promote nutrition, wellness, and active living across our communities

View the full post Let’s re-engage Grenada’s healthy guidelines on NOW Grenada.

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Roche Susvimo maintains vision over five years with two refills per year in people with nAMD

Basel: Roche has announced new, five-year efficacy, safety and durability data from the Phase III Portal study, a long-term extension of the Phase III Archway study, of Susvimo (ranibizumab injection) for the treatment of people with neovascular age-related macular degeneration (nAMD).

Basel: Roche has announced new, five-year efficacy, safety and durability data from the Phase III Portal study, a long-term extension of the Phase III Archway study, of Susvimo (ranibizumab injection) for the treatment of people with neovascular age-related macular degeneration (nAMD).

Results show that Susvimo’s immediate and predictable durability was sustained over five years, with approximately 95% of people receiving treatment every six months requiring no supplemental treatment before each refill. The data were presented at the American Society of Retina Specialists (ASRS) 2025 Annual Meeting in Long Beach, California, United States.

“These long-term results reinforce Susvimo’s ability to maintain vision and retinal drying over a long period of time for people with nAMD, the leading cause of vision loss in people over age 60,” said Levi Garraway, MD, PhD, Roche’s chief medical officer and head of Global Product Development. “These robust data reinforce our confidence in Susvimo's unique therapeutic approach, providing an effective alternative to regular eye injections while preserving vision in a sustained manner.”

“People with nAMD often experience suboptimal outcomes with real-world anti-VEGF treatment, largely due to the frequency of injections,” said study investigator John Kitchens, M.D., Retina Associates of Kentucky, who presented the data at ASRS. “Continuous delivery of treatment with Susvimo may preserve vision in patients with nAMD for longer in real-world clinical use than IVT injections.”

In the Portal study (n = 352), people originally treated with Susvimo in Archway continued to receive Susvimo refills every six months (Susvimo cohort; n = 220), while those originally treated with monthly intravitreal (IVT) ranibizumab injections in Archway received Susvimo and then refills every six months (IVT-Susvimo cohort; n = 132).

Five-year results showed consistent and sustained disease control and retinal drying in a population who entered Archway with vision at or near peak levels after receiving an average of five intravitreal injections per standard of care. In the Susvimo cohort, best-corrected visual acuity (BCVA) was 74.4 letters at baseline and 67.6 letters at 5 years. In the IVT-Susvimo cohort, BCVA was 76.3 letters at baseline and 68.6 at 5 years. Half of all patients had better than 20/40 vision at five years (Snellen visual acuity test). Average central subfield thickness (CST) remained stable, with a 1.0 (95% CI: -13.1, 11.1) µm reduction from baseline in the Susvimo cohort, and a 10.3 (95% CI: -25.7, 5.0) µm reduction in the IVT-Susvimo cohort.

The cohort of people who entered the Portal study from Archway is the largest cohort of people with nAMD to be followed prospectively and continuously for five years in a clinical study.

Susvimo provides continuous delivery of a customised formulation of ranibizumab via the Port Delivery Platform, while other currently approved treatments may require eye injections as often as once per month. The Port Delivery Platform is a refillable eye implant surgically inserted into the eye during a one-time, outpatient procedure, which introduces medicine directly into the eye, addressing certain retinal conditions that can cause vision loss.

Approved in the United States by the Food and Drug Administration (FDA) for nAMD, diabetic macular edema (DME) and diabetic retinopathy (DR), Susvimo is a refillable eye implant surgically inserted into the eye during a one-time, outpatient procedure.8,9 Susvimo continuously delivers a customised formulation of ranibizumab over time. Ranibizumab is a VEGF inhibitor designed to bind to and inhibit VEGF-A, a protein that has been shown to play a critical role in the formation of new blood vessels and the leakiness of the vessels.

The customised formulation of ranibizumab delivered by Susvimo is different from the ranibizumab IVT injection, a medicine marketed as Lucentis (ranibizumab injection), which is approved to treat nAMD and other retinal diseases.

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