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Here we report the application of readily prepared and available coumarin dyes for photoredox catalysis, which are able to mimic powerful reductant [Ir(iii)] complexes. Coumarin derivatives 9 and 10 were employed as photoreductants in pinacol coupling and in other reactions, in the presence of Et3N as a sacrificial reducing agent. As the electronic, photophysical, and steric properties of coumarins could be varied, a wide applicability to several classes of photoredox reactions is predicted.

Zwitterionic near infrared fluorescent agents were developed for non-invasive real-time transcutaneous assessment of kidney function., We developed novel zwitterionic near infrared (NIR) fluorescent agents (ABZWCY-HPβCD and AAZWCY-HPβCD), which exhibit favorable hydrophilicity, low plasma protein binding, high stability and non-toxicity. These attractive characteristics ensure that they are excreted rapidly, without any skin accumulation or metabolism in vivo. More importantly, zwitterionic HPβCD based agents can be efficiently filtrated by the glomerulus and completely excreted through the kidneys into urine without reabsorption or secretion in the kidney proximal tubule. Relying on these novel zwitterionic NIR agents and a transcutaneous device, we demonstrate a rapid, robust and biocompatible approach for assessing kidney function in rat models of both healthy rats and those with kidney disease, without the need for time-consuming blood/urine sample preparation. Our work provides a promising tool for in vivo real-time non-invasive kidney function assessment in preclinical applications.

We developed novel zwitterionic near infrared (NIR) fluorescent agents (ABZWCY-HPβCD and AAZWCY-HPβCD), which exhibit favorable hydrophilicity, low plasma protein binding, high stability and non-toxicity. These attractive characteristics ensure that they are excreted rapidly, without any skin accumulation or metabolism in vivo. More importantly, zwitterionic HPβCD based agents can be efficiently filtrated by the glomerulus and completely excreted through the kidneys into urine without reabsorption or secretion in the kidney proximal tubule. Relying on these novel zwitterionic NIR agents and a transcutaneous device, we demonstrate a rapid, robust and biocompatible approach for assessing kidney function in rat models of both healthy rats and those with kidney disease, without the need for time-consuming blood/urine sample preparation. Our work provides a promising tool for in vivo real-time non-invasive kidney function assessment in preclinical applications.

A1AT deficiency- a genetically inherited autosomal codominant disease with more than 120 identified alleles- was first identified by Laurell and Eriksson in 1963. The most common hereditary disorder in adults, A1AT causes an increased risk of developing pulmonary emphysema and liver disease. In A1AT patients, lung disease generally presents at a younger age than "usual" chronic obstructive pulmonary disease (COPD) and it may be misdiagnosed as asthma. Because A1AT deficiency patients can show the same clinical features as non-deficient COPD (including increased evidence of bronchiectasis, frequent exacerbations, impaired health status and a degree of reversibility of airflow obstruction), the World Health Organization recommend to test every patient with a diagnosis of COPD or adult-onset asthma for A1AT deficiency. Despite these recommendations, the epidemiology of A1AT deficiency remains uncertain. Although recently discovered A1AT deficiency has affected human populations since antiquity. By using scientific data and recently studied skeletons and historical cases, we show that it is now possible to reconstruct the natural history of pathological processes, whether due to genetic, infectious or environmental factors. We believe that the evolution of disease in patients and research to elucidate the relationship between social science and environmental are pertinent contemporaneous subjects.

Introduction Recent paleopathological cases have shown the usefulness of interdisciplinary odontological studies in the investigation of historical figures. Observation A macroscopic examination of the mandible of Saint-Louis (13th c. AD), conserved in the cathedral of Notre-Dame (Paris, France) was carried out, and compared with biographical data about the life and death of the King, and contemporaneous cases of infectious/inflammatory diseases. We found post-mortem tooth loss associated with moderate signs of infectious and inflammatory diseases, which precise diagnoses are discussed facing historical chronicles and sources: main diagnosis is scurvy, potentially associated with bacterial infection. Discussion Our results support the identification of the relics, and improve the knowledge about the saint's circumstances of death related to metabolic deficiencies and infections.

Our aim is to present an alternative methodology to the standard formula imposed to the insurance regulation (the European directive knows as Solvency II) for the calculus of the capital requirements. We want to demonstrate how this formula is now obsolete and how is possible to obtain lower capital requirement through the theory of the copulas, function that are gaining increasing importance in various economic areas. A lower capital requirement involves the advantage for the various insurance companies not to have unproductive capital that can therefore be used for the production of further profits. Indeed the standard formula is adequate only with some particular assumptions, otherwise it can overestimate the capital requirements that are actually needed as the standard formula underestimates the effect of diversification.

Summary Introduction COVID-19 put out many interesting aspects of society's responses to an epidemic. Epidemics have a long-standing history in literature. We want to analyze if society's responses to the epidemic have changed over time, and what literature can teach about the society's reaction to an epidemic. Material and methods We searched and discussed the references to the social effects of the epidemic that are provided in three famous works of European literature providing descriptions about society's reactions to an epidemic throughout the centuries have been selected: “The Decameron” by Giovanni Boccaccio, “The Betrothed” by Alessandro Manzoni, and “The Plague” by Albert Camus. Results Literature teaches us that: the epidemic's spread is often preceded and favoured by a phase of negation or under evaluation of the problem; restrictive measures are the most efficient for containing the virus’ spread; some people have difficulties in being compliant with these measures; infodemia may accompany an epidemic, feeding chaos and fear among the people. Conclusion Looking at examples of epidemics reported in the past, we can conclude that the current COVID-19 pandemic shows that society's responses to an unknown disease are not changed over time.

St. John of the Cross (1542–1591) died aged 49 years after 3 months of excruciating pain following a trivial lesion in his right foot. Erysipelas, a superficial bacterial infection of the skin, and subsequent sepsis were previously suggested as the cause of his death. Here, an alternative diagnosis is proposed. An accurate perusal of his biography allowed the symptomatology, the clinical evolution, the depth of the infection and the associated systemic manifestations displayed by Fray John to be reconstructed. St. John of the Cross developed cellulitis in the foot, which turned into a cutaneous abscess. To treat the toxaemia and inhibit further necrosis of the skin, excision of necrotic tissue and cauterization of the sores were performed to no avail. The infection burrowed through the fascial planes and reached the bones of the leg, leading to osteomyelitis. In the absence of antibiotic treatments and proper antiseptic procedures, the soft-tissue infection spread deeper to the bones. It is not unconceivable that the surgery might have further promoted the spread of the bacteria giving rise to the secondary sepsis that led to St. John’s premature death.

Dante places the sinners who promoted scandals, schism, and discord in the ninth Ditch of the Inferno. Among those is also the Prophet Muhammad. Describing the Prophet's punishment, Dante resorts to technical terms and vulgar expressions. This poetic representation highlights Dante's medical and anatomical knowledge and reflects 14th c. Christian religious beliefs. At that time, autopsies were performed only on prisoners, prostitutes and people without identity. By comparing the Prophet to an autopsied corpse, Dante associates Muhammad with those bearing the badge of shame. Moreover, this description is a further confirmation that Dante had good medical knowledge.

The pathography of the famous painter and sculptor Amedeo Modigliani (1884-1920) shows that he had tuberculosis and died of tubercular meningitis aged 35. The nineteenth century was characterized by numerous milestones in the history of tuberculosis. In 1853, Hermann Brehmer, first used the term tuberculosis referred to at the time as "phthisis". In 1865, Jean Antoine Villemin demonstrated the infectious etiology of the disease. This was confirmed in 1882 by Robert Koch by identifying the tubercle bacillus. Koch also invented the diagnostic tuberculin test. Charles Mantoux and Florence Seibert improved this test. Identification of the infectious etiology of tuberculosis led to experiments of effective treatments for this disease. The most successful treatment for tuberculosis was by sanatorium regime. From the late nineteenth century, more invasive therapeutic approaches such as artificial pneumothorax were introduced. The advent of streptomycin in 1945 changed the social view of tuberculosis. This previously romanticized disease became a social stigma which was associated with poor social and moral standards; patients were kept in isolation. Fearing social ostracism, Modigliani refused treatment for tuberculosis and instead deliberately fostered his reputation as an alcoholic and addict in order to conceal the disease.

During the 2011 restoration works in the central nave of the church of the Assumption of Our Lady, known as “The Piquete”, in the village of Quinto (about 50 kms southwest of Zaragoza, Spain), the remains of 70 individuals were uncovered. Of these there were 32 mummified bodies, four of which have been investigated with CT scans. Here we report on the findings in one such individual, namely a child of between 7 and 8 years of age, whose sex is debatable but may well be female. The main pathological finding is the presence of pressure erosion and distortion of the upper thoracic spine, the cause of which is discussed with the conclusion that this may well represent a neurenteric duplication cyst. The possible consequences of such a lesion are considered.