Weak institutions and credit availability: the impact of crime on bank loans

This paper analyzes the relationship between the terms on bank loans and local crime rates, employing a sample of over 300,000 bank-firm relationships. Controlling for firm, market and bank characteristics the results show that where the crime rate is higher borrowers pay higher interest rates, pledge more collateral, and resort less to asset-backed loans and more to revolving credit lines than borrowers in low-crime areas. The evidence also suggests that access to credit is adversely affected by crime. The offenses that affect the loan market are those that exogenously increase firm fragility (extortion, organized crime) and raise loss given default (fraud, fraudulent bankruptcy).crime, governance and growth, financial development, credit markets, banks

Bank balance sheets and the transmission of financial shocks to borrowers: evidence from the 2007-2008 crisis

We use Italian data on bank lending to firms to study the transmission of shocks affecting bank balance sheets to the volume and cost of credit granted to business borrowers and to the probability of banks accepting loan applications from new borrowers during the 2007-2008 financial crisis. The identification of the credit-supply effect is based on a difference-in-difference approach because: a large number of firms in Italy borrow from more than one bank; the shocks to the wholesale funding market were exogenous to Italian banks; and Italian banks were affected to a varying extent by the crisis depending on their funding structure. Results indicate that supply conditions worsened most for the banks that were most exposed to the interbank market and for those that made the most use of securitization. While the initial capital position of banks did not significantly affect their lending, the deterioration of bank capitalization as proxied by charge-offs and profitability had a significant impact. Furthermore, our results suggest that bank capital influenced lending indirectly, with higher capital reducing the elasticity of lending to the shocks on the funding side.bank balance sheet, transmission of shocks, credit supply, financial crisis

The risk of home mortgages in Italy: evidence from one million contracts

This study analyzes the main characteristics of loans for house purchase issued in Italy between 2004 and 2007 employing the data on individual contracts from the Sample Survey of Lending Rates. Variables describing the type of mortgage and the borrower are related to the ex post probability of late payments and defaults. We also estimate the difference in ex post risk between mortgages that have subsequently been securitized and those that have not. The main results are: variable rate contracts proved to be more risky than fixed rate contracts; the difference is larger for mortgages issued at the end of 2005, when market rates were at their lowest; late payments have been more frequent for borrowers that are younger, resident in the South or immigrants from non-EU countries; non-securitized mortgages were more likely to run into difficulties with late payments and defaults than securitized ones.home mortgages, credits

Synuclein expression in the lizard Anolis carolinensis

The synuclein (syn) family comprises three proteins: alpha-, beta- and gamma-syns. In humans, they are involved in neurodegenerative diseases such as Parkinson's disease and in tumors. Members of the syn family were sequenced in representative species of all vertebrates and the comparative analysis of amino acid sequences suggests that syns are evolutionarily conserved, but information about their expression in vertebrate lineages is still scarce and completely lacking in reptiles. In this study, the expression of genes coding for alpha-, beta- and gamma-syns was analyzed in the green lizard Anolis carolinensis by semiquantitative RT-PCR and Western blot. Results demonstrate good expression levels of the three syns in the lizard nervous system, similarly to human syns. This, together with the high identity between lizard and human syns, suggests that these proteins fulfill evolutionarily conserved functions. However, differences between lizard and humans in the expression of syn variants (two different variants of gamma-syn were detected in A. carolinensis) and differences in some amino acids in key positions for the regulation of protein conformation and affinity for lipid and metal ions also suggest that these proteins may have acquired different functional specializations in the two lineages

Lactoferrin, the moonlighting protein of innate immunity

Lactoferrin (Lf), a naturally occurring glycoprotein involved in innate immunity, was first discovered in bovine milk [...]

Membrane Transporters Involved in Iron Trafficking: Physiological and Pathological Aspects

Iron is an essential transition metal for its involvement in several crucial biological functions, the most notable being oxygen storage and transport. Due to its high reactivity and potential toxicity, intracellular and extracellular iron levels must be tightly regulated. This is achieved through transport systems that mediate cellular uptake and efflux both at the level of the plasma membrane and on the membranes of lysosomes, endosomes and mitochondria. Among these transport systems, the key players are ferroportin, the only known transporter mediating iron efflux from cells; DMT1, ZIP8 and ZIP14, which on the contrary, mediate iron influx into the cytoplasm, acting on the plasma membrane and on the membranes of lysosomes and endosomes; and mitoferrin, involved in iron transport into the mitochondria for heme synthesis and Fe-S cluster assembly. The focus of this review is to provide an updated view of the physiological role of these membrane proteins and of the pathologies that arise from defects of these transport systems

Age-related changes in human ceruloplasmin. Evidence for oxidative modifications.

Human plasma or serum from donors of age comprised between 15 and 95 years was analyzed for paramagnetic and total copper content, as well as for immunoreactive ceruloplasmin content and oxidase activity. All parameters were essentially unaltered, except the paramagnetic copper content, which increased 2-fold upon aging. A dramatic change of the electron paramagnetic resonance spectrum due to ceruloplasmin occurred in individuals over 65 years old and was associated with both an increase of the type 1 copper signal intensity and the appearance of new resonances of a type 2 copper species. Ceruloplasmin was isolated from either young or old donors. Spectroscopic analyses of the isolated proteins confirmed the tendency of type 1 copper to stay reduced in the "young" and oxidized in the "old" protein. The type 2 copper signal observed in most young ceruloplasmin samples was different from the species invariably present in the old protein. The magnetic parameters of the latter species were more consistent with a partially reduced trinuclear copper site. In vitro limited proteolysis resulted in identical fragmentation patterns and kinetics in both proteins. However, changes of the net electric charge were detected in the fragments of the protein isolated from aged individuals, which exhibited a carbonyl content of 0.6 mol of carbonyl/mol of protein. The same pattern of modifications, including a higher carbonyl content (0.65 versus 0.2 mol of carbonyl/mol of protein), could be reproduced by exposure of the young protein to the metal-catalyzed oxidation system iron/ascorbate. These results suggest that during aging ceruloplasmin is subjected to oxidative modifications which are likely to be the source of conformational changes around the copper sites leading to an intramolecular electron rearrangement among the various copper sites

Lactoferrin's anti-cancer properties. Safety, selectivity, and wide range of action

Despite recent advances in cancer therapy, current treatments, including radiotherapy, chemotherapy, and immunotherapy, although beneficial, present attendant side effects and long-term sequelae, usually more or less affecting quality of life of the patients. Indeed, except for most of the immunotherapeutic agents, the complete lack of selectivity between normal and cancer cells for radio- and chemotherapy can make them potential antagonists of the host anti-cancer self-defense over time. Recently, the use of nutraceuticals as natural compounds corroborating anti-cancer standard therapy is emerging as a promising tool for their relative abundance, bioavailability, safety, low-cost effectiveness, and immuno-compatibility with the host. In this review, we outlined the anti-cancer properties of Lactoferrin (Lf), an iron-binding glycoprotein of the innate immune defense. Lf shows high bioavailability after oral administration, high selectivity toward cancer cells, and a wide range of molecular targets controlling tumor proliferation, survival, migration, invasion, and metastasization. Of note, Lf is able to promote or inhibit cell proliferation and migration depending on whether it acts upon normal or cancerous cells, respectively. Importantly, Lf administration is highly tolerated and does not present significant adverse effects. Moreover, Lf can prevent development or inhibit cancer growth by boosting adaptive immune response. Finally, Lf was recently found to be an ideal carrier for chemotherapeutics, even for the treatment of brain tumors due to its ability to cross the blood-brain barrier, thus globally appearing as a promising tool for cancer prevention and treatment, especially in combination therapies

Pichia pastoris Fep1 is a [2Fe-2S] protein with a Zn finger that displays an unusual oxygen-dependent role in cluster binding

Fep1, the iron-responsive GATA factor from the methylotrophic yeast Pichia pastoris, has been characterised both in vivo and in vitro. This protein has two Cys(2)-Cys(2) type zinc fingers and a set of four conserved cysteines arranged in a Cys-X-5-Cys-X-8-Cys-X-2-Cys motif located between the two zinc fingers. Electronic absorption and resonance Raman spectroscopic analyses in anaerobic and aerobic conditions indicate that Fep1 binds iron in the form of a [2Fe-2S] cluster. Site-directed mutagenesis shows that replacement of the four cysteines with serine inactivates this transcriptional repressor. Unexpectedly, the inactive mutant is still able to bind a [2Fe-2S] cluster, employing two cysteine residues belonging to the first zinc finger. These two cysteine residues can act as alternative cluster ligands selectively in aerobically purified Fep1 wild type, suggesting that oxygen could play a role in Fep1 function by causing differential localization of the [Fe-S] cluster