Author Archives: Gabriel Piña, MD

Nerve Injury may be Improved with Stem-Cell Therapy

Brachial plexus injury (BPI) is an advanced peripheral nerve injury that results in paralysis of the upper extremities. This injury is often caused by high-energy trauma such as road traffic accidents and young adult groups often experience it. Massive motor neuron damage and impairment functions of the brachial plexus-innervated muscles are the results of severe […]

New Gene Therapy Target for Polycystic Kidney Disease

Polycystic kidney disease is an inherited disease that involves bilateral renal cysts. The condition is broadly divided into 2 forms: autosomal dominant polycystic kidney disease (ADPKD) and autosomal recessive polycystic kidney disease (ARPKD). ADPKD is one of the most common inherited disorders in humans and the most frequent genetic cause of kidney failure in adults, […]

Second-Hand Smoke as a Risk Factor for Asthma not Only in Children, but Also in Grandchildren

Asthma is a common chronic disease worldwide and affects approximately 26 million persons in the United States. It is the most common chronic disease in childhood, affecting an estimated 7 million children, and it is a common cause of hospitalization for children in the United States. The pathophysiology of asthma is complex and involves airway […]

PrP Could be an Alternative Treatment for Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a chronic systemic autoimmune inflammatory disease whose hallmark feature is a persistent symmetric polyarthritis (synovitis) that affects the hands and feet (see the image below).  Any joint lined by a synovial membrane may be involved, however, and extra-articular involvement of organs such as the skin, heart, lungs, and eyes can be […]

COVID-19 May Increase Risk of Alzheimer’s Dementia

An infectious etiology of Alzheimer’s disease has been postulated for decades and despite supportive evidence, it is still controversial . The increased risk for COVID-19 in people with Alzheimer’s disease  and recent recognition of long lasting neurological sequelae of SARS-CoV2 infection in part reflecting inflammatory processes, which are central to Alzheimer’s disease neuropathology, suggest bidirectional […]

Is Acetaminophen Really a Safe Medication?

High blood pressure, or hypertension, is the most common primary diagnosis in the United States,  and it is one of the most common worldwide diseases afflicting humans and is a major risk factor for stroke, myocardial infarction, vascular disease, and chronic kidney disease. Despite extensive research over the past several decades, the etiology of most […]

New Human Cell Type for Research

The extraembryonic mesoderm (EXM) is an important tissue with essential roles in development. EXM is implicated in primitive erythropoiesis and extracellular matrix formation; becomes an integral part of the amnion, yolk sac, allantois, and chorion; and forms the primitive umbilical cord.  When all goes well, a human embryo implants in the womb about seven days […]

New Antitumor Cells to Treat Blood Diseases and Cancer Tumors: Study

Neutrophils, the most abundant circulating leukocytes in humans, accumulate in many types of tumors and represent a significant portion of tumor-infiltrating cells. Due to their heterogeneity and plasticity in the tumor microenvironment (TME), neutrophils have demonstrated contradictory protumor and antitumor effects during tumor evolution. For instance, tumor-associated neutrophils present direct or antibody-dependent cytotoxicity against solid […]