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All Topic Review Biography
Topic Review
Obesity and Bone
The increase in body weight causes an increase in BMD (bone mineral density), both for a mechanical effect and for the greater amount of estrogens present in the adipose tissue. Nevertheless, despite an apparent strengthening of the bone witnessed by the increased BMD, the risk of fracture is higher.
  • 413
  • 05 Jan 2022
Topic Review
Non-Coding RNAs in Tamoxifen Resistance
Despite the clinical efficacy of Tam, intrinsic or acquired resistance is an important obstacle limiting the success of ER + breast cancer patient treatment. It is a challenge that needs to be overcome to improve the prognosis of these patients. The main mechanisms of resistance to tamoxifen can be divided according to different causes: mechanisms that involve genetic mutations and lead to loss or gain of function of the receptor and mechanisms that modulate other protumorigenic pathways, including other receptors involved in estrogen’s pathway of action.
  • 412
  • 09 Aug 2021
Topic Review
Systems Medicine, Redoxomics and Type 2 Diabetes
Medicine has largely utilized a reductionist approach in which disease states are generally reduced to a single organ or defect. Consequently, this approach often overlooks potential interactions between both intrinsic and extrinsic modulators and environmental risk factors. Alternatively, an integrative systems medicine approach is becoming increasingly favored. Redoxomics is a branch of systems medicine focusing on oxidative stress, reactive oxygen species, and antioxidants. Systems medicine, also referred to as precision or “P4” medicine, captures the power of omics technologies, such as genomics, epigenomics, proteomics, and metabolomics, and their interaction with environmental factors like nutrition and the gut microbiome.
  • 407
  • 13 Jul 2022
Topic Review
Differential Diagnosis of Sensory and Cognitive Malingering
Malingering relates to intentionally pretending or exaggerating physical or psychologic symptoms to gain an external incentive, such as avoiding work, law prosecution or military service, or seeking financial compensation from insurance companies. Accordingly, various techniques have been developed in recent years by the scientific community to address this challenge.
  • 407
  • 31 Jul 2023
Topic Review
Biomarkers during COVID-19
As the COVID-19 (Coronavirus disease 19) pandemic spreads worldwide, the massive numbers of COVID-19 patients have created a considerable healthcare burden for every country. The clinical spectrum of SARS-CoV-2 infection is broad, ranging from asymptomatic to mild, moderate, severe, and critical. Most COVID-19 patients present with no or mild symptoms, but nearly one-fifth of all patients develop severe or life-threatening complications. In addition to localized respiratory manifestations, severe COVID-19 cases also show extra-pulmonary complications or induce multiorgan failure. Identifying, triaging, and treating patients at risk early is essential and urgent. Biomarkers are measurable biochemical substances used to recognize and indicate disease severity or response to therapeutic interventions. The information they provide is objective and suitable for delivering healthcare providers with a means of stratifying disease state in COVID-19 patients. 
  • 406
  • 25 Feb 2022
Topic Review
Cystic Fibrosis and Oxidative Stress
Cystic fibrosis (CF) is still today the most common lethal genetic disease with autosomal recessive inheritance in the Caucasian population, with a prevalence of 1 case per 2500 live births. The disease is caused by a mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene that causes the CFTR protein to become dysfunctional. When the protein is not working correctly, there is reduced transport of chloride ions with consequent dysregulation of epithelial lining fluid (mucus) transport in the lung, pancreas and other organs. Oxidative stress is a complex process in which excess reactive oxygen species (ROS) affect, either directly or indirectly, all structural and functional components of cells at a molecular level. This arises because the production of these chemical species is increased and/or because the physiological defense capacity towards them, thanks to the antioxidant system, is reduced. 
  • 405
  • 06 Sep 2022
Topic Review
Evolution of Chemistries and Pharmaceutical Properties of ASOs
Myotonic dystrophy type 1 (DM1) is a dominant genetic disease in which the expansion of long CTG trinucleotides in the 3′ UTR of the myotonic dystrophy protein kinase (DMPK) gene results in toxic RNA gain-of-function and gene mis-splicing affecting mainly the muscles, the heart, and the brain. The CUG-expanded transcripts are a suitable target for the development of antisense oligonucleotide (ASO) therapies. Antisense therapy is an attractive strategy making it possible to target almost every gene by simply modifying the base sequence. 
  • 404
  • 15 Nov 2022
Topic Review
Controversies in Pathogenesis of Polycystic Ovary Syndrome
Polycystic ovary syndrome (PCOS) is a heterogeneous and extremely common disease with symptoms that vary with the age of the patient, typically characterized by hyperandrogenism, chronic oligo-anovulation, and/or several metabolic disorders. The syndrome includes various phenotypes, and the pathogenesis is multifactorial, often involving insulin resistance. This feature is closely related to ovarian dysfunction, inflammation, hyperandrogenism, and metabolic disorders, which characterize and complicate the syndrome. Therapy currently considers both lifestyle improvements and medications, and must be tailored on a case-by-case basis. To date, the published studies have not arrived at a definition of the most suitable therapy for each individual case and many of the drugs used are still off-label.
  • 403
  • 24 Apr 2022
Topic Review
The Role of Biomarkers in Adrenocortical Carcinoma
Adrenocortical carcinoma (ACC) is a rare endocrine malignancy arising from the adrenal cortex often with unexpected biological behavior. It can occur at any age, with two peaks of incidence: in the first and between fifth and seventh decades of life. Although ACC are mostly hormonally active, precursors and metabolites, rather than end products of steroidogenesis are produced by dedifferentiated and immature malignant cells.
  • 399
  • 16 Feb 2023
Topic Review
The Products of Bone Resorption
Surprisingly little is known about the factors released from bone during resorption and the metabolic roles they play. This entry describes what we have learned about factors released from bone, mainly through the study of burn injuries, and what roles they play in post-burn metabolism. From these studies, we know that calcium, phosphorus, and magnesium, along with transforming growth factor (TGF)-β, are released from bone following resorption. Additionally, studies in mice from Karsenty’s laboratory have indicated that undercarboxylated osteocalcin is also released from bone during resorption. Questions arising from these observations are discussed as well as a variety of potential conditions in which release of these factors could play a significant role in the pathophysiology of the conditions. Therapeutic implications of understanding the metabolic roles of these and as yet other unidentified factors are also raised. While much remains unknown, that which has been observed provides a glimpse of the potential importance of this area of study.
  • 398
  • 12 Apr 2021
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