Metformin Indications, Dosage, Adverse Reactions, and Contraindications

Metformin or dimethyl biguanide is the oral antidiabetic drug with the most extensive experience of prescribing in the clinical practice of type 2 diabetes mellitus. In this chapter, we reviewed the indications, contraindications, and adverse drug reactions (ADR) of metformin. The most significant adverse drug reactions of metformin are lactic acidosis, allergies, hypoglycemia, vitamin B12 deficiency, altered taste, and gastrointestinal intolerance. Metformin is contraindicated in severe chronic diseases (hepatic, renal, and cardiac failure) or acute complications of diabetes (ketoacidosis and hyperosmolar state). Metformin is considered by all international guidelines the first-line treatment in type 2 diabetes mellitus (T2DM) together with medical, nutritional therapy. It is one of the most prescribed molecules worldwide. Furthermore, metformin can also be prescribed for other diseases like polycystic ovary syndrome or prediabetes (impaired glucose tolerance/fasting hyperglycemia). Recent studies have shown positive results concerning the use of metformin for cardiovascular or neuroprotective effects; also, several scientific papers are suggesting an antitumor or antiaging effect of metformin. Having such an excellent efficiency in practice, thus predicting its sustainability on the pharmaceutical market, research is directed toward characterizing metformin action on bacteria genera in the gut. Modifying the microbiota composition by pre- and probiotics could improve metformin action

A new global threat for the public safety: Zika virus

Zika virus, the etiological agent of Zika fever, is transmitted by mosquitoes and has been affecting the South American continent starting with 2015. It was reported in several European countries, carried by the people who returned from Latin America, as reported by the health authorities in those countries. Today, according to the World Health Organization (WHO), the virus suspected to cause serious birth defects in the fetus has also been confirmed in 21 of the 55 countries of South America, but also in other states from Europe and North America. Zika virus is a single stranded positive sense RNA virus belonging to Flavivirus genus (family Flaviviridae) and was first identified in 1947 in Uganda rainforest Zika. The increased number of cases of microcephaly, in children from northern Brazil, suggested a connection with Zika virus, but it has not yet been proven. Also, the virus can be transmitted sexually and through blood or blood products. Diagnosis of the infection is made using Polymerase Chain Reaction (PCR). So far, there is no specific antiviral treatment or vaccine against the infection with Zika virus. The best form of prevention is to avoid mosquito bites. WHO has estimated that the spread of Zika virus, transmitted through mosquito bite, is “a global public health emergency”. The priority is to protect pregnant women and to control the mosquitoes

Cardiac Manifestations in a Group of Romanian Patients with Gaucher Disease Type 1 (a Monocentric Study)

Gaucher disease (GD), one of the most common lysosomal disorders, is characterised by clinical heterogeneity. Cardiac involvement is rare and refers to pulmonary hypertension (PH), valvular abnormalities and myocardial infiltrative damage. The aim of this study was to evaluate cardiac involvement in a group of Romanian GD patients. Phenotypic and genotypic characterisation was carried out in 69 patients with GD type 1. Annual echocardiography and electrocardiography were performed to assess pulmonary pressure, morphology and function of the valves and electrocardiographic changes. Nine patients (13%) exhibited baseline echocardiographic signs suggesting PH. Mitral regurgitation was present in 33 patients (48%) and aortic regurgitation in 11 patients (16%). One patient presented aortic stenosis. Significant valvular dysfunction was diagnosed in 10% of patients. PH was associated with greater age (p < 0.001), longer time since splenectomy (p = 0.045) and longer time between clinical onset and the start of enzyme replacing therapy (p < 0.001). Electrocardiographic changes were present in five patients (7%)

Research and Science Today No. 1(7)/2014

RESEARCH AND SCIENCE TODAY is a biannual science journal established in 2011. The journal is an informational platform that publishes assessment articles and the results of various scientific research carried out by academics. We provide the authors with the opportunity to create and/or perfect their science writing skills. Thus, each issue of the journal (two per year and at least two supplements) will contain professional articles from any academic field, authored by domestic and international academics. The goal of this journal is to pass on relevant information to undergraduate, graduate, and post-graduate students as well as to fellow academics and researchers; the topics covered are unlimited, considering its multi-disciplinary profile. Regarding the national and international visibility of Research and Science Today, it is indexed in over 30 international databases (IDB) and is present in over 200 online libraries and catalogues; therefore, anybody can easily consult the articles featured in each issue by accessing the databases or simply the website