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Topic Review
Molecular Hydrogen into the Body
It is known that molecular hydrogen is a relatively stable, ubiquitous gas that is a minor component of the atmosphere. At the same time, molecular hydrogen has been shown to have diverse biological effects. By the end of 2022, more than 2000 articles have been published in the field of hydrogen medicine, many of which are original studies.
  • 1.4K
  • 10 Mar 2023
Topic Review
Toxoplasmosis
Toxoplasma gondii is an apicomplexan parasite causing toxoplasmosis, a common disease, which is most typically asymptomatic. However, toxoplasmosis can be severe and even fatal in immunocompromised patients and fetuses. Available treatment options are limited, so there is a strong impetus to develop novel therapeutics. 
  • 1.4K
  • 17 Jun 2021
Topic Review
Cisplatin induced Acute Kidney Injury
Administration of the chemotherapeutic agent cisplatin leads to acute kidney injury (AKI). Cisplatin-induced AKI (CIAKI) has a complex pathophysiological map, which has been linked to cellular uptake and efflux, apoptosis, vascular injury, oxidative and endoplasmic reticulum stress, and inflammation. Despite research efforts, pharmaceutical interventions, and clinical trials spanning over several decades, a consistent and stable pharmacological treatment option to reduce AKI in patients receiving cisplatin remains unavailable. This has been predominately linked to the incomplete understanding of CIAKI pathophysiology and molecular mechanisms involved.
  • 1.4K
  • 21 Apr 2021
Topic Review
Miscarriage and Grief
Miscarriage and grief are both an event and subsequent process of grieving that develops in response to a miscarriage. Almost all those experiencing a miscarriage experience grief. This event is often considered to be identical to the loss of a child and has been described as traumatic. But the vast majority of those who have suffered both will tell you they are nothing alike. Losing a child is in a category of its own when it comes to grief. "Devastation" is another descriptor of miscarriage. Grief differs from the emotion sadness. Sadness is an emotion along with grief, on the other hand, is a response to the loss of the bond or affection was formed and is a process rather than one single emotional response. Grief is not equivalent to depression. Grief also has physical, cognitive, behavioral, social, cultural, and philosophical dimensions. Bereavement and mourning refer to the ongoing state of loss, and grief is the reaction to that loss. Emotional responses may be bitterness, anxiety, anger, surprise, fear, and disgust and blaming others; these responses may persist for months. Self-esteem can be diminished as another response to miscarriage. Not only does miscarriage tend to be a traumatic event, women describe their treatment afterwards to be worse than the miscarriage itself. A miscarriage can often be "heart-breaking". A miscarriage can affect the women, husband, partner, siblings, grandparents, the whole family system and friends. Almost all those experiencing a miscarriage go through a grieving process. Serious emotional impact is usually experienced immediately after the miscarriage. Some may go through the same loss when an ectopic pregnancy is terminated. In some, the realization of the loss can take weeks. Providing family support to those experiencing the loss can be challenging because some find comfort in talking about the miscarriage while others may find the event painful to discuss. The father of the baby can have the same sense of loss. Expressing feelings of grief and loss can sometimes be harder for men. Some women are able to begin planning their next pregnancy after a few weeks of having the miscarriage. For others, planning another pregnancy can be difficult. Organizations exist that provide information and counselling to help those who have had a miscarriage. Some women have a higher risk of developing prolonged grief and complicated grief than others. A factor that can affect grief for men is finding help in an environment that is traditionally women-focused for maternity care and support.
  • 1.4K
  • 25 Oct 2022
Topic Review
Nonalcoholic Steatohepatitis
Nonalcoholic Steatohepatitis (NASH) may further progress to cirrhosis and end-stage liver disease hepatocellular carcinoma (HCC). NASH-related  HCC is currently the most rapid-growing indication for liver transplant in HCC patients.
  • 1.3K
  • 31 May 2021
Topic Review
Pediatric Vulvar Lichen Sclerosus
Vulvar lichen sclerosus (VLS) is a chronic inflammatory condition affecting the anogenital region, which may present in a prepubertal or adolescent patient. The most popular theories are its autoimmune and genetic conditioning, although theories concerning hormonal and infectious etiology have also been raised. The most common presenting symptoms of VLS is vulva pruritus, discomfort, dysuria and constipation. The lesions initially are white, flat-topped papules, thin plaques, or commonly atrophic patches. Purpura is a hallmark feature of VLS. The treatment includes topical anti-inflammatory agents and long-term follow-up, as there is a high risk of recurrence and an increased risk of vulvar cancer in adult women with a history of lichen sclerosus.
  • 1.3K
  • 15 Jul 2021
Topic Review
Complication
A complication in medicine, or medical complication, is an unfavorable result of a disease, health condition, or treatment. Complications may adversely affect the prognosis, or outcome, of a disease. Complications generally involve a worsening in severity of disease or the development of new signs, symptoms, or pathological changes which may become widespread throughout the body and affect other organ systems. Thus, complications may lead to the development of new diseases resulting from a previously existing disease. Complications may also arise as a result of various treatments. The development of complications depends on a number of factors, including the degree of vulnerability, susceptibility, age, health status, and immune system condition. Knowledge of the most common and severe complications of a disease, procedure, or treatment allow for prevention and preparation for treatment if they should occur. Complications are not to be confused with sequelae, which are residual effects that occur after the acute (initial, most severe) phase of an illness or injury. Sequelae can appear early in the development of disease or weeks to months later and are a result of the initial injury or illness. For example, a scar resulting from a burn or dysphagia resulting from a stroke would be considered sequelae. In addition, complications should not be confused with comorbidities, which are diseases that occur concurrently but have no causative association.
  • 1.3K
  • 17 Oct 2022
Topic Review
Diabetes Mellitus Type 2
Diabetes mellitus type 2 (also known as type 2 diabetes) is a long-term metabolic disorder that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent urination, and unexplained weight loss. Symptoms may also include increased hunger, feeling tired, and sores that do not heal. Often symptoms come on slowly. Long-term complications from high blood sugar include heart disease, strokes, diabetic retinopathy which can result in blindness, kidney failure, and poor blood flow in the limbs which may lead to amputations. The sudden onset of hyperosmolar hyperglycemic state may occur; however, ketoacidosis is uncommon. Type 2 diabetes primarily occurs as a result of obesity and lack of exercise. Some people are more genetically at risk than others. Type 2 diabetes makes up about 90% of cases of diabetes, with the other 10% due primarily to diabetes mellitus type 1 and gestational diabetes. In diabetes mellitus type 1 there is a lower total level of insulin to control blood glucose, due to an autoimmune induced loss of insulin-producing beta cells in the pancreas. Diagnosis of diabetes is by blood tests such as fasting plasma glucose, oral glucose tolerance test, or glycated hemoglobin (A1C). Type 2 diabetes is partly preventable by staying a normal weight, exercising regularly, and eating properly. Treatment involves exercise and dietary changes. If blood sugar levels are not adequately lowered, the medication metformin is typically recommended. Many people may eventually also require insulin injections. In those on insulin, routinely checking blood sugar levels is advised; however, this may not be needed in those taking pills. Bariatric surgery often improves diabetes in those who are obese. Rates of type 2 diabetes have increased markedly since 1960 in parallel with obesity. As of 2015 there were approximately 392 million people diagnosed with the disease compared to around 30 million in 1985. Typically it begins in middle or older age, although rates of type 2 diabetes are increasing in young people. Type 2 diabetes is associated with a ten-year-shorter life expectancy. Diabetes was one of the first diseases described. The importance of insulin in the disease was determined in the 1920s.
  • 1.3K
  • 28 Sep 2022
Topic Review
γ-Glutamyltransferase in Urologic Neoplasms
γ-Glutamyltransferase (GGT), a membrane-bound enzyme, contributes to the metabolism of glutathione (GSH), which plays a critical physiological role in protecting cells against oxidative stress. GGT has been proposed as a biomarker of carcinogenesis and tumor progression given that GGT activity is important during both the promotion and invasion phases in cancer cells.
  • 1.3K
  • 14 Apr 2021
Topic Review
Bulbous Plants Drimia
Drimia (synonym Urginea) plants are bulbous plants belonging to the family Asparagaceae (formerly the family Hyacinthaceae) and are distinctive, powerful medicinal plants. Just some species are indigenous to South Africa and have been traditionally utilized for centuries to cure various diseases and/or ailments. They have been recognized among the most famous and used medicinal plants in South Africa. Traditionally, the plants are used for various illnesses such as dropsy, respiratory disease, bone and joint complications, skin disorders, epilepsy and cancer. A number of studies have reported biological properties such as antiviral, antibacterial, antioxidant and anti-inflammatory, immunomodulatory, and anticancer activities. Their bulbs are a popular treatment for colds, measles, pneumonia, coughs, fever and headaches. 
  • 1.3K
  • 18 Oct 2021
Topic Review
COVID-19 and the Endocrine System
SARS-CoV-2 is a member of the Coronaviridae family, a group of enveloped, positive-sense, single-stranded RNA viruses. Many extrapulmonary manifestations of the coronavirus disease 2019 (COVID-19) have been reported involving the cardiovascular, renal, gastrointestinal and urinary systems. These widespread manifestations are attributed to the presence of the ACE2 (Angiotensin converting enzyme 2) receptor in these tissues, which is postulated to be at the center of the pathogenesis of COVID-19. Similarly, expression of the ACE2 receptor has also been reported in various endocrine tissues including the hypothalamus, pituitary, thyroid, gonads, and pancreatic islets. Therefore, it is imperative to understand the way COVID-19 can alter the function of these tissues and cause pathology, especially considering the close interplay between various endocrine systems as part of the RAAS (renin–angiotensin–aldosterone system) pathway and the central role of ACE2 in this pathway.
  • 1.3K
  • 22 Mar 2022
Topic Review
Polyphenolic Compounds of Seaweed
The disease-preventive and medicinal properties of plant polyphenolic compounds have long been known. As active ingredients, they are used to prevent and treat many noncommunicable diseases. In recent decades, marine macroalgae have attracted the attention of biotechnologists and pharmacologists as a promising and almost inexhaustible source of polyphenols. This heterogeneous group of compounds contains many biopolymers with unique structure and biological properties that exhibit high anti-infective activity. In the present review, the authors focus on the antiviral potential of polyphenolic compounds (phlorotannins) from marine algae and consider the mechanisms of their action as well as other biological properties of these compounds that have effects on the progress and outcome of viral infections. 
  • 1.3K
  • 28 Mar 2021
Topic Review
Sex/Gender Differences in Uses and Effects of Metformin
Metformin (MTF) occupies a major and fundamental position in the therapeutic management of type 2 diabetes mellitus (T2DM). Gender differences in some effects and actions of MTF have been reported. Women are usually prescribed lower MTF doses compared to men and report more gastrointestinal side effects. The incidence of cardiovascular events in women on MTF has been found to be lower to that of men on MTF. 
  • 1.3K
  • 22 Mar 2022
Topic Review
Triple Overlap Syndrome (OSAHS-COPD-CHF)
Obstructive sleep apnea-hypopnea syndrome (OSAHS) and chronic obstructive pulmonary disease (COPD) are independently linked to an increase in cardiovascular disease (CVD). Only a few studies have been published linking the association between overlap syndrome and congestive heart failure (CHF). It is becoming increasingly clear through research that there is a strong connection between OSA, COPD, and CHF. 
  • 1.3K
  • 06 Sep 2023
Topic Review
Nox4
The NADPH oxidase Nox4 is a hydrogen peroxide (H2O2)-producing enzyme, with the highest expression in the kidney. As the kidney is involved in volume and blood pressure control through sodium handling, we set out to determine the impact of a low sodium diet on these parameters in WT and Nox4-/- mice. Nox4 expression in the murine kidney was restricted to the proximal tubule. Nevertheless, low-sodium-induced weight loss and sodium sparing function was similar in WT and Nox4-/- mice, disputing an important function of renal Nox4 in sodium handling. In contrast, a low sodium diet resulted in a reduction in systolic blood pressure in Nox4-/- as compared to WT mice. This was associated with a selectively lower pressure to heart-rate ratio, as well as heart to body weight ratio. In general, a low sodium diet leads to activation of sympathetic tone and the renin angiotensin system, which subsequently increases peripheral resistance. Our observations suggest that the control by this system is attenuated in Nox4-/- mice, resulting in lower blood pressure in response to low sodium.
  • 1.3K
  • 24 Aug 2021
Topic Review
Angiogenic Switch
Regular physical activity in cyclic sports can influence the so-called “angiogenic switch”, which is considered as an imbalance between proangiogenic and anti-angiogenic molecules. Disruption of the synthesis of angiogenic molecules can be caused by local changes in tissues under the influence of excessive physical exertion and its consequences, such as chronic oxidative stress and associated hypoxia, metabolic acidosis, sports injuries, etc. 
  • 1.3K
  • 22 Jul 2021
Topic Review
HRCT of Drug-Induced ILD
Interstitial Lung Diseases (ILDs) represent a heterogeneous group of pathologies, which may be related to different causes. A low percentage of these lung diseases may be secondary to the administration of drugs or substances. Several different high resolution computed tomography (HRCT) patterns related to pulmonary drug toxicity have been reported in literature, and the most frequent ILDs patterns reported include Nonspecific Interstitial Pneumonia (NSIP), Usual Interstitial Pneumonia (UIP), Hypersensitivity Pneumonitis (HP), Organizing Pneumonia (OP), Acute Respiratory Distress Syndrome (ARDS), and Diffuse Alveolar Damage (DAD). 
  • 1.3K
  • 14 Jul 2021
Topic Review
Peptide-Based Nanoparticles
Gene therapy offers the possibility to skip, repair, or silence faulty genes or to stimulate the immune system to fight against disease by delivering therapeutic nucleic acids (NAs) to a patient. Compared to other drugs or protein treatments, NA-based therapies have the advantage of being a more universal approach to designing therapies because of the versatility of NA design. NAs (siRNA, pDNA, or mRNA) have great potential for therapeutic applications for an immense number of indications. However, the delivery of these exogenous NAs is still challenging and requires a specific delivery system. In this context, beside other non-viral vectors, cell-penetrating peptides (CPPs) gain more and more interest as delivery systems by forming a variety of nanocomplexes depending on the formulation conditions and the properties of the used CPPs/NAs.
  • 1.3K
  • 21 Jun 2021
Topic Review
Substantia Nigra Imaging in Parkinson
Parkinson’s disease (PD) is a progressive neurodegenerative disorder, characterized by motor and non-motor symptoms due to the degeneration of the pars compacta of the substantia nigra (SNc) with dopaminergic denervation of the striatum. Although the diagnosis of PD is principally based on a clinical assessment, great efforts have been expended over the past two decades to evaluate reliable biomarkers for PD. Among these biomarkers, magnetic resonance imaging (MRI)-based biomarkers may play a key role. Conventional MRI sequences are considered by many in the field to have low sensitivity, while advanced pulse sequences and ultra-high-field MRI techniques have brought many advantages, particularly regarding the study of brainstem and subcortical structures. Nowadays, nigrosome imaging, neuromelanine-sensitive sequences, iron-sensitive sequences, and advanced diffusion weighted imaging techniques afford new insights to the non-invasive study of the SNc. 
  • 1.3K
  • 07 Sep 2023
Topic Review
Chamomile
Matricaria chamomilla L. (MC) and Chamaemelum nobile (L.) All. (CN) are two varieties of Chamomile. These herbs have been used for thousands of years in Greece, Rome and ancient Egypt. Chamomile has been used for the treatment of stomach problems, cramps, dermatitis, and minor infections.
  • 1.2K
  • 16 Jan 2023
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