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Jun 8, 2023

Coronavirus variant XBB.1.5 rises in the United States — is it a global threat?

Posted by in category: biotech/medical

I still think it is a threat globally and it based on many cases globally that still rise at an alarming rate.

Prevalence of a new subvariant of Omicron is increasing, but whether it will cause a big surge in infections or hospitalizations isn’t clear.

Jun 8, 2023

Melanoma vaccine trial appears to reduce skin cancer recurrence

Posted by in category: biotech/medical

Drug companies Moderna and Merck have released encouraging results from a vaccine trial that shows promise in the battle against Stage 3 and Stage 4 melanoma, the most serious type of skin cancer. NBC’s Dr. Natalie Azar breaks down the findings on TODAY.

Jun 8, 2023

Impact of COVID-19 vaccination on the use of PD-1 inhibitor in treating patients with cancer: a real-world study

Posted by in category: biotech/medical

PD-1 inhibitors have been widely used for treatment of multiple types of cancer. 1 With the ongoing coronavirus pandemic, the effect of anti-COVID-19 vaccination on PD-1 safety and efficacy has become a critical question for oncologists and patients with cancer alike. 2 To avoid potential treatment complications, some physicians have opted to suspend PD-1 inhibitor treatments for recently vaccinated patients with cancer. However, little data exist to support such a decision. Recent studies have found that anti-COVID-19 vaccines such as BNT162b2 (Pfizer BioNTech, New York, New York, USA) and mRNA-1273 (Moderna, Cambridge, Massachusetts, USA) are well tolerated in patients with cancer, 3–5 and side-effect profiles from these vaccines were similar between healthy volunteers and patients with cancer. 6 One recent meta-analysis summarizing multiple COVID-19 vaccine trials studies concluded that patients with cancer have a significantly lower likelihood of attaining acceptable immune response to COVID-19 immunization when compared with the general population given compromised cancerous immune system. 7 However, whether anti-COVID-19 vaccines have any functional impact on the efficacy of immune checkpoint inhibitor (ICI) treatment was unknown. Thus, we conducted a large multicenter study to explore the effects of COVID-19 vaccination on PD-1 inhibitor treatment in patients with cancer.

A total of 3,552 consenting adult patients with cancer were screened from 83 Chinese hospitals and medical centers beginning on January 28, 2021. Eligible participants met the following inclusion criteria: their malignancy had been histopathologically confirmed; they had received at least one dose of camrelizumab8 (one of the most commonly used PD-1 inhibitors in China) after the COVID-19 vaccination program was launched in China in January 2021. Clinical information, demographic data, and medical history were collected at enrollment, and patient treatment, adverse events and outcomes were followed through September 30, 2021. Efficacy and safety of PD-1 treatment were evaluated according to Response Evaluation Criteria in Solid Tumor V.1.19 and National Cancer Institute Common Terminology Criteria for Adverse Events V.5.0,10 respectively. Patient functionality/performance status was evaluated using Eastern Cooperative Oncology Group (ECOG) criteria.

Jun 8, 2023

COVID-19 Vaccine “Boosts” Effectiveness of Anti-Cancer Treatment

Posted by in category: biotech/medical

A collaborative study has found that immunization with the vaccine SinoVac might improve responses to treatment in patients with nasopharyngeal cancer (NPC). The research is published as a “Letter to the Editor” in the journal Annals of Oncology.

Fears that COVID-19 vaccination may interfere with cancer treatment

Cancer cells are clever. They can adapt methods to avoid or divert the body’s immune response to protect their growth and prevent being destroyed. One approach is to target a protein found on T cells called programmed cell death protein 1, or PD-1. When PD-1 is bound to its ligand, PD-L1, it prevents T cells from killing malignant cells. Drugs called immune checkpoint inhibitors can block PD-1, releasing the “brakes” on the immune response such that the T cells’ ability to kill cancer cells is unleashed.

Jun 8, 2023

PD-L1 Dysregulation in COVID-19 Patients

Posted by in categories: biological, biotech/medical

Year 2021 😀 😍

The COVID-19 pandemic has reached direct and indirect medical and social consequences with a subset of patients who rapidly worsen and die from severe-critical manifestations. As a result, there is still an urgent need to identify prognostic biomarkers and effective therapeutic approaches. Severe-critical manifestations of COVID-19 are caused by a dysregulated immune response. Immune checkpoint molecules such as Programmed death-1 (PD-1) and its ligand programmed death-ligand 1 (PD-L1) play an important role in regulating the host immune response and several lines of evidence underly the role of PD-1 modulation in COVID-19. Here, by analyzing blood sample collection from both hospitalized COVID-19 patients and healthy donors, as well as levels of PD-L1 RNA expression in a variety of model systems of SARS-CoV-2, including in vitro tissue cultures, ex-vivo infections of primary epithelial cells and biological samples obtained from tissue biopsies and blood sample collection of COVID-19 and healthy individuals, we demonstrate that serum levels of PD-L1 have a prognostic role in COVID-19 patients and that PD-L1 dysregulation is associated to COVID-19 pathogenesis. Specifically, PD-L1 upregulation is induced by SARS-CoV-2 in infected epithelial cells and is dysregulated in several types of immune cells of COVID-19 patients including monocytes, neutrophils, gamma delta T cells and CD4+ T cells. These results have clinical significance since highlighted the potential role of PD-1/PD-L1 axis in COVID-19, suggest a prognostic role of PD-L1 and provide a further rationale to implement novel clinical studies in COVID-19 patients with PD-1/PD-L1 inhibitors.

COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) holds the world in thrall since early March 2020. COVID-19 manifests a spectrum of signs and symptoms from mild illness to acute pneumonia. Unfortunately, a considerable percentage of patients rapidly worse to acute respiratory distress syndrome (ARDS) requiring intensive care (1, 2).

Continue reading “PD-L1 Dysregulation in COVID-19 Patients” »

Jun 8, 2023

Unbelievably excited

Posted by in categories: energy, transportation

A new airplane seat concept that allows wheelchair users to stay in their own chair throughout a flight was revealed this week by a subsidiary of US airline Delta, a move welcomed as a “huge step” by potential customers.

“Unbelievably excited,” is how power wheelchair user and avid traveler Cory Lee described his reaction after a working prototype of the design was demonstrated by Delta Flight Products (DFP) at the Aircraft Interiors Expo (AIX) in Hamburg, Germany, a symposium spotlighting airplane cabin innovations.

DFP’s concept seamlessly converts to and from a traditional airplane seat. The built-in seat folds up to allow a wheelchair to be docked into place. The seat would be installed into pre-existing aircraft seat track systems, so would not involve any structural change to the airplane.

Jun 8, 2023

The Search for Earth Look-Alikes Is Getting Serious

Posted by in category: futurism

One promising planet turned out not to have an atmosphere. But there are six more where it came from.

Jun 8, 2023

Google’s Password Manager gains biometric authentication on desktop

Posted by in categories: mobile phones, privacy, robotics/AI, security

Google’s aiming to make it easier to use and secure passwords — at least, for users of the Password Manager tool built into its Chrome browser.

Today, the tech giant announced that Password Manager, which generates unique passwords and autofills them across platforms, will soon gain biometric authentication on PC. (Android and iOS have had biometric authentication for some time.) When enabled, it’ll require an additional layer of security, like fingerprint recognition or facial recognition, before Chrome autofills passwords.

Exactly which types of biometrics are available in Password Manager on desktop will depend on the hardware attached to the PC, of course (e.g. a fingerprint reader), as well as whether the PC’s operating system supports it. Beyond “soon,” Google didn’t say when to expect the feature to arrive.

Jun 8, 2023

Adobe Express Adds AI As Part Of Massive Update

Posted by in category: robotics/AI

Two AI tools will be added to Adobe Express: the ability to generate images from text prompts and text effects, where lettering can filled with textures. For example, you might apply a pink balloon… More.

Adobe is bringing its AI tools to Adobe Express as part of a huge upgrade to the content creation service.

Adobe Express can be used to create anything from social media posts to printed posters to promotional flyers. An update being announced today will add even more feathers to its bow, including the ability to create video content and edit PDFs.

Continue reading “Adobe Express Adds AI As Part Of Massive Update” »

Jun 8, 2023

Here’s Where Air Quality Will Worsen As New York, Philadelphia And Toronto Are Blanketed In Wildfire Smoke

Posted by in category: education

The haze of smoke from Canadian wildfires that smothered New York and New England in dark clouds Tuesday night is expected to linger throughout the week, and intensify in some areas as officials urge residents to stay inside and schools cancel outdoor activity amid “unhealthy” and “hazardous” air-quality levels.

New York City

Continue reading “Here’s Where Air Quality Will Worsen As New York, Philadelphia And Toronto Are Blanketed In Wildfire Smoke” »

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