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Filomena Russo,1 Marco Galluzzo,2,3 Luca Stingeni,4 Severino Persechino,5 Leonardo Zichichi,6 Andrea Conti,7 Claudia Giofrè,8 Valentina Dini,9 Martina Vispi,10 Laura Atzori,11 Angelo Cattaneo,12 Aurora Parodi,13 Federico Bardazzi,14 Giuseppe Stinco,15 Paolo Dapavo,16 Giampiero Girolomoni,17 Maria Letizia Musumeci,18 Manuela Papini,19 Marina Venturini,20 Stefano Dastoli,21 Sergio Di Nuzzo,22 Maria Concetta Fargnoli,23 Gianluca Pagnanelli,24 Nicoletta Bernardini,25 Daniele Mario Gambini,26 Piergiorgio Malagoli,27 Carlo Mazzatenta,28 Ketty Peris,29 Iris Zalaudek,30 Gabriella Fabbrocini31 ,† Francesco Loconsole,32 Camilla Vassallo,33 Lucia Pietroleonardo,34 Francesca Prignano,35 Chiara Franchi,36 Anna Maria Offidani,37 Claudio Bonifati,38 Vito Di Lernia,39 Giovanni Gigante,40 Marta Silvia Bartezaghi,40 Matteo Franchi,41,42 Paola Ursoleo,40 Elisabetta Aloisi40 1Dermatology Section, Department of Medical, Surgical and Neurological Science, University of Siena, S. Maria Alle Scotte Hospital, Siena, Italy; 2Department of Systems Medicine, University of Rome “Tor Vergata”, Rome, Italy; 3Dermatology Unit, Fondazione Policlinico “Tor Vergata”, Rome, Italy; 4Section of Dermatology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy; 5Dermatology Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, Rome, Italy; 6Unit of Dermatology, San Antonio Abate Hospital, Trapani, Italy; 7Section of Dermatology, Department of Specialized Medicine, University of Modena and Reggio Emilia, Modena, Italy; 8U.O.C. Dermatologia, A.O. Papardo, Messina, Italy; 9Section of Dermatology, Department of Medicine and Oncology, University of Pisa, Pisa, Italy; 10Dermatology Unit, Misericordia Hospital, Grosseto, Italy; 11Dermatology Unit, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy; 12Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, Italy; 13Section of Dermatology, DiSSal University of Genoa, Ospedale-Policlinico San Martino IRCCS, Genova, Italy; 14Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; 15Section of Dermatology, Department of Medicine, University of Udine, Udine, Italy; 16Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy; 17Section of Dermatology, Department of Medicine, University of Verona, Verona, Italy; 18Section of Dermatology, Department of Medical and Surgical Specialties, University of Catania, Catania, Italy; 19Dermatology Clinic of Terni, University of Perugia, Perugia, Italy; 20Section of Dermatology, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy; 21Department of Health Sciences, Magna Graecia University, Catanzaro, Italy; 22Department of Medicine and Surgery, University of Parma, Parma, Italy; 23Section of Dermatology, Department of Biotechnological and Applied Clinical Science, University of L’Aquila, L’Aquila, Italy; 24Department of Dermatology, Istituto Dermopatico dell’Immacolata - IRCCS, Roma, Italy; 25Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Dermatology Unit, “Daniele Innocenzi”, Asl Latina, Italy; 26Dermatology Unit, ASST Papa Giovanni XXIII Hospital, Bergamo, Italy; 27Dermatology Unit, Azienda Ospedaliera San Donato Milanese, Milan, Italy; 28Dermatology Unit, Lucca Azienda USL Toscana Nord Ovest, Pisa, Italy; 29Department of Translational Medicine and Surgery, IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy; 30Department of Dermatology, University of Trieste, Trieste, Italy; 31Section of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy; 32Department of Dermatology, University of Bari, Bari, Italy; 33Institute of Dermatology, IRCCS Policlinico San Matteo Foundation and University of Pavia, Pavia, Italy; 34Dermatology Unit, Vito Fazzi Hospital, Lecce, Italy; 35Dermatology Clinic, Department of Health Sciences, University of Florence, Florence, Italy; 36Dermatology Unit, IRCCS IO Galeazzi, Milan, Italy; 37Dermatological Clinic, Polytechnic University of the Marche Region, Ancona, Italy; 38Department of Dermatology, Istituto Dermatologico San Gallicano - IRCCS, Roma, Italy; 39Dermatology Unit, Arcispedale S. Maria Nuova IRCCS, Reggio Emilia, Italy; 40Novartis Farma SpA, Origgio, Italy; 41National Centre for Healthcare Research and Pharmacoepidemiology, Milan, Italy; 42Laboratory of Healthcare Research and Pharmacoepidemiology, Department of Statistics and Quantitative Methods, University of Milano Bicocca, Milan, Italy†Gabriella Fabbrocini passed away on 3 March 2023Correspondence: Filomena Russo, Dermatology Section, Department of Medical, Surgical and Neurological Science, University of Siena, S. Maria Alle Scotte Hospital, Siena, Italy, Email file.russo@libero.itPurpose: SUPREME, a phase IIIb study conducted in Italy, demonstrated safety and high efficacy of secukinumab for up to 72 weeks in patients with moderate-to-severe plaque-type psoriasis. SUPREME 2.0 study aimed to provide real-world data on the long-term drug survival and effectiveness of secukinumab beyond 72 weeks.Patients and Methods: SUPREME 2.0 is a retrospective observational chart review study conducted in patients previously enrolled in SUPREME study. After the end of the SUPREME study, eligible patients continued treatment as per clinical practice, and their effectiveness and drug survival data were retrieved from medical charts.Results: Of the 415 patients enrolled in the SUPREME study, 297 were included in SUPREME 2.0; of which, 210 (70.7%) continued secukinumab treatment throughout the 42-month observation period. Patients in the biologic-naïve cohort had higher drug survival than those in the biologic-experienced cohort (74.9% vs 61.7%), while HLA-Cw6–positive and HLA-Cw6–negative patients showed similar drug survival (69.3% and 71.9%). After 42 months, Psoriasis Area and Severity Index (PASI) 90 was achieved by 79.6% of patients overall; with a similar proportion of biologic-naïve and biologic-experienced patients achieving PASI90 (79.8% and 79.1%). The mean absolute PASI score reduced from 21.94 to 1.38 in the overall population, 21.90 to 1.24 in biologic-naïve and 22.03 to 1.77 in biologic-experienced patients after 42 months. The decrease in the absolute PASI score was comparable between HLA-Cw6–positive and HLA–Cw6-negative patients. The baseline Dermatology Life Quality Index scores also decreased in the overall patients (10.5 to 2.32) and across all study sub-groups after 42 months. Safety was consistent with the known profile of secukinumab, with no new findings.Conclusion: In this real-world cohort study, secukinumab showed consistently high long-term drug survival and effectiveness with a favourable safety profile.Keywords: psoriasis, secukinumab, real-world evidence, drug survival, SUPREME

Ilaria Proietti,1 Nevena Skroza,1 Alessandra Mambrin,1 Federica Marraffa,2 Ersilia Tolino,1 Nicoletta Bernardini,1 Anna Marchesiello,1 Giovanni Rossi,1 Salvatore Volpe,1 Concetta Potenza1 1Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Fiorini Hospital, Polo Pontino, Terracina, 04019, Italy; 2Department of Clinical Internal, Anaesthesiologic and Cardiovascular Sciences, Sapienza University of Rome, Rome, ItalyCorrespondence: Ilaria ProiettiDermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Fiorini Hospital, Polo Pontino, Terracina, 04019, ItalyEmail ilaria.proietti@uniroma1.itAbstract: Cancer patients are experiencing an increase in overall survival as a consequence of earlier diagnosis and newer effective anticancer therapies. However, cancer survivors often face long-term consequences from their original cancer diagnosis and long-term sequelae of anticancer treatment. Maintaining patients’ quality of life is of paramount importance and this can be accomplished by a multidisciplinary treatment approach, including aesthetic treatments to improve patients’ body image and positively impact their quality of life. In this perspective, we will discuss the importance of aesthetic treatments in cancer patients. In addition, we will summarise the data available regarding the use of several aesthetic treatments such as fillers, botulinum toxin and laser use in cancer patients, their safety, their efficacy, and the specific precautions that need to be implemented in this particular subset of cancer patients.Keywords: aesthetic treatment, cancer patient, fillers, botulinum toxin, laser therapy

Nevena Skroza, Nicoletta Bernardini, Ilaria Proietti, Concetta Potenza Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Bio-Technologies, Sapienza University of Rome, Fiorini Hospital, Polo Pontino, 04019 Terracina, Italy Abstract: Actinic keratoses (AKs) are epidermal cutaneous neoplasia observed predominantly in middle-aged and older subjects with mainly photo type I and photo type II on sun-exposed surfaces as a result of DNA damage. AKs have historically been characterized as being “precancerous”; however, now it is considered by many authors a carcinoma in situ that can persist or progress to invasive squamous cell carcinoma (SCC) with metastatic potential. Despite the advances in the recognition of typical clinic, dermoscopic and histologic patterns, currently it is not yet possible to predict which AKs will progress to SCC. For this reason, early diagnosis and effective therapy are recommended based on cost/risk/benefit analysis. Current treatment consists of lesion-directed or field-directed therapies or a combination of both. Among the topical field therapies, ingenol mebutate stands out for its therapeutic efficacy, both as directed lesion therapy and as field directed therapy. The aim of this review is to demonstrate the utility of ingenol mebutate in the management of AK in daily clinical practice and to highlight data from real world in order to confirm evidence from pivotal studies. In order to explore clinical data from real world, PubMed searches were performed with the search terms “clinical data ingenol mebutate” and “real world ingenol mebutate”. The hits were examined for relevant articles using defaults criteria. The timeframe for the sample search started from the first publication on this topic in 2008 up to now. A total of 23 articles were found using the keywords specified above. The overview points out a low number of real-life studies on the effectiveness and tolerability of this novel treatment due to short period of clinical experience for its recent approval. Further real-life studies are required in order to better identify the efficacy, safety and adherence of the drug on a larger population. Keywords: ingenol mebutate, actinic keratosis, field cancerization, real world, photodamage, novel treatment

A recent Italian study examined the immune response to the COVID-19 vaccine among psoriatic patients receiving biological therapy. The study included 346 psoriatic patients and 151 controls who received two doses of the vaccine and were tested for antibodies. The results showed that both groups had a strong antibody response, with no significant difference between patients and controls. Mild adverse events were reported by about one-fourth of participants, and no serious adverse events were reported. The study also found that the type of vaccine administered was associated with antibody levels, with higher levels observed in those vaccinated with Janssen and lower levels in those vaccinated with AstraZeneca. However, the number of subjects who received these vaccines was limited. The study suggests that COVID-19 vaccinations are effective and safe for psoriatic patients undergoing biological treatments. [Extracted from the article]

Blue nevi are a heterogeneous group of lesions that can display a variety of different clinicopathological characteristics. Although attempts are made to classify each lesion into defined subtypes, there can be overlap between the subtypes. The clinical, dermoscopic and histolopathologic features of a case of proliferative nodule arising within blue nevus is discussed. Running title: Blue nevi are an heterogeneous group of melanocytic lesions blue tinctorial properties. Proliferative nodules are rare benign lesions often present at birth as a component of a large congenital melanocytic nevi, congenital or acquired nevi. We first report a case of proliferative nodule arising within blue nevus. [ABSTRACT FROM AUTHOR]

Psoriasis is a immune-mediated, chronic, inflammatory skin disease. In HIV positive (HIV+) patients we usually observe more serious clinical features and recalcitrant course. Furthermore, therapeutic management of HIV+ patient is complex and requires collaboration with the infectious disease specialist. We report the case of a patient affected by severe psoriasis who contracted HIV infection during biological therapy and, subsequently, succesfully treated with ixekizumab. [ABSTRACT FROM AUTHOR]

Background. Psoriasis is a multifactorial chronic inflammatory skin disease characterized by erythemato-squamous lesions with a chronic relapsing course. The desease clinical activity (PASI) and the patient's quality of life (DLQI) are the main elements to assess for setting up a correct therapeutic management. Objective. The aim of the study was to evaluate the management of the patient with moderate-severe psoriasis in therapy with biological drugs and to establish the difference in the achievement of PASI 90 and DLQI 0-1 between a group of patients treated with only biological drugs and a group of patients receiving biologic therapy in combination with a topical ointment. Methods. we conducted a prospective, observational real-life study enrolling 60 patients with moderate to severe psoriasis and divided in two groups: Group A patients treated with biological drugs, Group B patiens treated with biological drugs in association with an ointment composed of betamethasone, salicylic acid and ammonium sulphoichtyolate, applied 2 times a day. PASI and DLQI were evaluated at study beginning (T0) for both study groups, after 12 weeks (T3) for sample in therapy with biological drugs and after 24 weeks (T6) for sample in co-medication therapy. Results. The two-way ANOVA method was used to evaluate the standard deviations (SD): at T3 and T6 Group B obtained a significant PASI reduction and improvement of DLQI (✶ p value <0.05) compared to Group A. Conclusion. Our study shown that the patients treated with biologics in co-medication with topical therapy reached a significantly higher PASI and DQLI compared with those treated with only biologics. Furthermore we observed that the association with topical oinment showed more efficacy in the treatment of areas such as palm-plantar region, that is often difficult-to-treat region, even for biologic drugs. [ABSTRACT FROM AUTHOR]

An early identification of non-responders in oncology is of crucial importance to rapidly switch treatment regimens. Here we report a positron emission tomography, (PET)-guided switch from immunotherapy to targeted therapy in a patient affected by metastatic melanoma. We describe the case of a 78-years-old male patient diagnosed with nodular melanoma, submitted to baseline PET/CT with 18fluorodeoxyglucose (18F-FDG) that showed cutaneous and skeletal metastases (stage IV). The patients started immunotherapy with pembrolizumab. A PET/CT performed 3 months after the start of immunotherapy demonstrated progressive metabolic disease both at skeletal and cutaneous level, confirmed also by the biopsy. As patients resulted positive for BRAF V600k mutation, treatment regimen was rapidly switched to combined anti-BRAF/MEK targeted therapy. The PET/CT performed 3 months later, showed almost complete metabolic response. Ten months after the beginning of targeted therapy, the patient continues to present a durable metabolic response. PET/CT with 18F-FDG may help in monitoring the response to treatment in metastatic melanoma thus defining personalized therapeutic pathways. [ABSTRACT FROM AUTHOR]

Earth observation satellites are equipped with navigation components (star trackers, gyroscopes) which estimates the attitude of the satellite, corresponding to its orientation in the orbital reference frame. This equipment is essential for the localisation of the images which is done a posteriori and for the registration of the different images for a pushbroom sensor. This concerns both the registration of the spectral bands and the registration of multi-temporal series. However, the required accuracy is not always compatible with the performance of the attitude restitution. Moreover, some specific applications need more stringent geometric control even if requirements are met. With a multi-spectral pushbroom instrument, the same object on ground is seen as many times as number of spectral bands at different time instants: the attitude profile of the platform can be completely reconstructed from the results of the mapping of the different spectral bands. An attitude reconstruction method is proposed based on space triangulation inversion technique. The framework of this study is low-frequencies noise perturbations applied to Venμs satellite. Cubic splines are used for the attitude error profile, with 60 free parameters. Provided the physical model is representative, we show on two test cases that the convergence is very good. The band registration quality is used as a proxy to assess the performances. Residuals errors are less than 0.05 pixel for all tested band couples. [ABSTRACT FROM AUTHOR]

Background: Few studies have compared the efficacy of switching to adalimumab in the real‐life setting in plaque psoriasis patients. Objective: To evaluate the effect of adalimumab in psoriasis patients previously treated with other biologics. Methods: In this multicentre study, psoriasis patients (N = 262) treated with an anti‐TNF‐alpha agent, ustekinumab or naïve to biologics then switched to adalimumab were included. Disease severity was assessed by the Psoriasis Area and Severity Index (PASI) at baseline and after 3, 6, 12, 24 and 36 months. The association between clinical risk factors and achievement of PASI response was evaluated by logistic regression. Results: Adalimumab treatment resulted in a decrease in PASI (15.1 ± 6.2 at baseline vs. 2.7 ± 4.8 at 6 months, P < 0.0001), regardless of previous biologic treatment. Furthermore, adalimumab allowed 92.5%, 79% and 56% of patients to achieve PASI response (PASI 50, 75 and 90, respectively) and complete remission (PASI 100 response) in 48.4% of patients, by 6 months and maintained over 3 years, independent of prior biologic treatment. The absence of metabolic syndrome, dyslipidemia, hypertension and lower PASI and lower age at baseline was associated with achievement of PASI response at 3, 6 and 12 months, whereas at later time points (24 and 36 months), PASI 90 and PASI 100 response was associated with diagnosis of psoriasis/psoriatic arthritis. Conclusion: Adalimumab was effective at reducing PASI score over 3 years, irrespective of whether patients were biologic naïve or previously treated with a TNF‐alpha or IL‐12/23 inhibitor. [ABSTRACT FROM AUTHOR]

The correlation between health and diet has always been a subject of interest in the field of dermatology and medicine in general. However, studies in the literature are still scarce, and need further investigation in the field of inflammatory skin diseases. In this paper, we report a case of a patient with atopic dermatitis whose complete recovery occurred only after combining dupilumab therapy with a Mediterranean diet regimen.

Abstract: Hidradenitis suppurativa (HS) is a chronic disorder of terminal follicular epithelium in the apocrine gland‐bearing areas. The long term therapy is based mainly on topical and/or systemic antibiotic use that could result in antibiotic resistance. The aim of our study was to present the real‐life experience based on the efficacy and tolerability of a novel lotion containing triethyl‐citrate, ethyl‐linoleate, and g‐peptide‐10 in the treatment of mild to moderate HS that has already shown effectiveness in acne treatment. This was an open‐label study on 30 patients of both sexes affected by HS. Patients were divided into two groups: 15 with Hurley I and 15 with Hurley II–III. The subjects were treated with the topical lotion, three‐times‐daily for eight weeks, with control at 4 (T1) and eight weeks (T2). Any other concomitant treatment (both topical and/or systemic) was avoided during study period. Improvement was observed in both Sartorius score grading system and inflammatory and noninflammatory lesion counts. The novel lotion has proved to be effective and well‐tolerated topical agent alone or in association with other topical and/or systemic tratments in HS, without side effects [ABSTRACT FROM AUTHOR]

On March 2020, COVID-19 has been declared as a pandemic emergency by World Health Organization (WHO). One paediatric patient had asthma (7%) and another patient had celiac disease and allergy. Twenty-three patients were adults with age ranging from 35 to 72 years, eight patients (35%) were male and 15 (65%) female, 12/23 (52%) had no previous disease. [Extracted from the article]

β3-Adrenoceptor agonists protect against experimental gastric ulcers. We investigated the effects of the β3-adrenoceptor agonist SR58611A on 2,4-dinitrobenzene sulphonic acid-induced colitis in rats and analysed the expression of β3-adrenoceptors in the colonic wall. SR58611A was administered orally (1–10 mg kg−1) for 7 days, starting the day before induction of colitis. Colitis was assessed by macroscopic and histological scores, tissue myeloperoxidase activity, interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumour necrosis factor-α (TNF-α) levels. Reverse transcription-polymerase chain reaction and immunohistochemical analysis were used to examine the expression of β3-adrenoceptors. SR58611A significantly reduced the severity of colitis as well as the tissue levels of TNF-α, IL-1β and IL-6. Colitis was associated with a decreased expression of β3-adrenoceptor mRNA in the mucosal/submucosal layer of distal colon and this reduction was not affected by SR58611A. Immunohistochemical analysis revealed β3-adrenoceptors within the muscularis externa, in myenteric neurons and nerve fibres and in the submucosa. β3-Adrenoceptor immunoreactivity was decreased in inflamed tissues compared to controls, particularly in the myenteric plexus; this reduction was counteracted by SR58611A. Amelioration of experimental colitis by the selective β3-adrenoceptor agonist SR58611A suggests that β3-adrenoceptors may represent a therapeutic target in gut inflammation. [ABSTRACT FROM AUTHOR]

Hidradenitis suppurativa (HS) is a chronic relapsing disorder of the apocrine gland affecting mainly areas subjected to friction (e.g. the axillae, groin, perineum and medial aspects of the thighs). This condition can be linked to different comorbidities: autoimmune and inflammatory disease, hormone‐related disorders, obesity and the metabolic syndrome, as well as rare syndromes such as Bazex–Dupré–Christol, Down's, KID, PAPASH, PASS, PASH, and SAPHO syndromes, or Dowling–Degos disease. We report a case of severe HS in a patient with Trisomy 1q;13, a very rare cytogenetic anomaly characterized by severe anomalies including dysmorphisms, multiple congenital malformations, heart defects and intellectual disability. [ABSTRACT FROM AUTHOR]

The new combination between the nucleoside analogue gemcitabine and the cholesterol-lowering drug fluvastatin was investigated in vitro and in vivo on the human pancreatic tumour cell line MIAPaCa-2. The present study demonstrates that fluvastatin inhibits proliferation, induces apoptosis in pancreatic cancer cells harbouring a p21ras mutation at codon 12 and synergistically potentiates the cytotoxic effect of gemcitabine. The pharmacologic activities of fluvastatin are prevented by administration of mevalonic acid, suggesting that the shown inhibition of geranyl-geranylation and farnesylation of cellular proteins, including p21rhoA and p21ras, plays a major role in its anticancer effect. Fluvastatin treatment also indirectly inhibits the phosphorylation of p42ERK2/mitogen-activated protein kinase, the cellular effector of ras and other signal transduction peptides. Moreover, fluvastatin administration significantly increases the expression of the deoxycytidine kinase, the enzyme required for the activation of gemcitabine, and simultaneously reduces the 5'-nucleotidase, responsible for deactivation of gemcitabine, suggesting a possible additional role of these enzymes in the enhanced cytotoxic activity of gemcitabine. Finally, a significant in vivo antitumour effect on MIAPaCa-2 xenografts was observed with the simultaneous combination of fluvastatin and gemcitabine, resulting in an almost complete suppression and a marked delay in relapse of tumour growth. In conclusion, the combination of fluvastatin and gemcitabine is an effective cytotoxic, proapoptotic treatment in vitro and in vivo against MIAPaCa-2 cells by a mechanism of action mediated, at least in part, by the inhibition of p21ras and rhoA prenylation. The obtained experimental findings might constitute the basis for a novel translational research in humans. [ABSTRACT FROM AUTHOR]

Rat sciatic nerve axons express capsaicin, proton and heat sensitivity and respond to stimulation with a Ca2+-dependent and graded calcitonin gene-related peptide (CGRP) release. In this study we demonstrate that similar functions, including capsaicin-induced CGRP release, are to be found in the desheathed sciatic nerve of the mouse. We have morphologically investigated the mechanisms of this axonal release in regions away from the active zones of synapses. Capsaicin receptor 1 (TRPV1) and CGRP immunostaining was performed using electron microscopic visualization. TRPV1 was identified in the axoplasm and inside vesicles—presumably on axonal transport—as well as in considerable quantity in the axonal plasma membrane of unmyelinated nerve fibers. Most of the unmyelinated axons were immunopositive for CGRP and in unstimulated nerves CGRP-containing vesicles almost entirely filled the axoplasm. After capsaicin stimulation (10-6 M for 5 min), the fibers appeared depleted of CGRP with only few vesicles remaining as well as some residual staining of the axoplasm. In addition a large number of vesicles were fused with the axonal membrane, forming classical exocytotic figures—the ω structures—lined with CGRP immunoreactive product.These results present morphological evidence for the distribution of TRPV1 along unmyelinated axons in peripheral nerve and also provide the first demonstration of vesicular neuropeptide exocytosis along unmyelinated axons in peripheral nerve. [Copyright &y& Elsevier]

Laminin, an extracellular matrix molecule (EMM) widely expressed in the basal laminae, interacts with specific membrane receptors among which the integrin molecules are the best known. During embryo development laminin is the first synthesized EMM and plays a significant role in the morphogenesis of organs in which epithelial-mesenchymal interactions and branching take place. The present study describes the distribution of laminin and of β1 integrin receptors during the very early stages of human kidney development. The observations were carried out on paraffin sections of human embryos ranging between the 4th and the 7th gestational week. Laminin was detected within the basement membranes of mesonephric duct, vesicles, glomerular vessels and celomic epithelium. The metanephric anlage reacted with anti-laminin immunoglobulins in the basement membrane underlying the ampullae and in few blastemic cap cells. Low levels of β1 integrin reactivity were found in both the mesonephric and metanephric structures. This study provides for the first time data about the distribution of laminin and β1 integrin in the early stages of human renal organogenesis suggesting a key role for these molecules in the epithelial-mesenchymal interactions necessary for kidney development. [ABSTRACT FROM AUTHOR]

The purpose of this study was to evaluate the optimal timing of ADR-529 administration to protect rats treated with doxorubicin (DXR) against drug-induced cardiotoxicity. Complete electrocardiographic monitoring (QRS complex, S alpha T segment and T wave) and the histopathological analysis of cardiac tissue were used to assess the degree of heart damage produced in female rats treated with ten i.v. doses of 1 mg/kg DXR over a period of 15 weeks; body-weight increase and survival were also analyzed to evaluate the toxicity of treatments. Cardiac alterations induced by DXR were compared with those occurring in animals receiving 20 mg/kg i.v. ADR-529 at 30 min prior to DXR administration, starting at the first, third, or sixth DXR dose and given until the end of the study (15th week). Rats treated with DXR were severely cardiomyopathic, showing progressive and irreversible ECG alterations (QRS-complex and S alpha T-segment widening and T-wave flattening) and marked degeneration of the myocardium (myocyte vacuolation, myofibrillar loss, and endomyocardial fibrosis). The most effective cardiac protection was provided by the administration of ADR-529 beginning with the first or third DXR dose. Delaying treatment with ADR-529 until the sixth DXR dose resulted in a significant reduction in its therapeutic action on heart damage. A significant difference in body-weight increase and survival was observed between the treatment groups: ADR-529 injected prior to the first DXR dose significantly protected animals from DXR toxicity, but this schedule was significantly more toxic than the administration of ADR-529 beginning with the third or sixth DXR dose. Taking into account the degree of cardiac protection and the toxicity of combination treatments, the results of the present study demonstrate the superiority of ADR-529 given prior to the third DXR dose over the other schedules tested. This finding suggests that significant protection against DXR-induced chronic cardiotoxicity in the rat can be obtained using deferred treatment with ADR-529. [ABSTRACT FROM AUTHOR]

The acute and chronic cardiotoxicity and cytotoxicity of the novel doxorubicin (DXR) derivative 4'-amino-3'-hydroxy-DXR were compared with those of 4'-deoxy-DXR and DXR. In the acute cardiotoxicity study, the ECG and hemodynamic changes recorded in anesthetized rats that had been treated i.v. with 10 mg/kg 4'-amino-3'-hydroxy-DXR or 8.6 mg/kg 4'-deoxy-DXR were significantly less severe than those caused by 13 mg/kg DXR. In the chronic cardiotoxicity study, rats received 3 weekly i.v. injections of 3 mg/kg DXR, 3 mg/kg 4'-amino-3'-hydroxy-DXR, or 2 mg/kg 4'-deoxy-DXR during the first 14 days of the study and were observed for an additional 35-day period. DXR induced severe cardiomyopathy that was characterized by ECG changes in vivo (S alpha T-segment widening and T-wave flattening) and by impairment of the contractile responses (Fmax, +/- dF/dtmax) to adrenaline of hearts isolated from treated animals. 4'-Deoxy-DXR caused a progressive enlargement of the S alpha T segment in vivo and a significant impairment of the -dF/dtmax value in vitro, which were less severe than those produced by DXR. The least cardiotoxic drug was 4'-amino-3'-hydroxy-DXR, which induced minor ECG changes without causing significant alterations in the contractile responses of isolated hearts to adrenaline. On the basis of the drug concentration required to inhibit 50% of the colony formation (IC50) of cell lines in vitro, 4'-amino-3'-hydroxy-DXR was less active than 4'-deoxy-DXR but at least twice as active as DXR against human cancer and murine transformed cell lines. These data indicate that 4'-amino-3'-hydroxy-DXR is significantly less cardiotoxic and more cytotoxic than DXR. [ABSTRACT FROM AUTHOR]

The acute and chronic cardiotoxicity as well as the cytotoxicity of 4'-deoxy-4'-iodo-doxorubicinol (I-DXRol), the major metabolite of the doxorubicin (DXR) derivative 4'-deoxy-4'-iodo-DXR (I-DXR), were compared with those of I-DXR and DXR. In the acute study, anesthetized rats received i.v. DXR (10 mg/kg), I-DXR (4 mg/kg), or I-DXRol (4 mg/kg) and were monitored for ECG (S alpha T segment and T wave), systolic (SBP) and diastolic (DBP) blood pressure, the first derivative of the systemic arterial pressure (SA dP/dtmax), and heart rate. Treatments induced a significant widening of the S alpha T segment, but I-DXRol was significantly less toxic than I-DXR or DXR. As compared with control values, DXR induced a marked increase in SBP and DBP and a decrease in SA dP/dtmax, whereas I-DXR and I-DXRol induced modest changes in hemodynamic parameters. In the chronic study, 3 mg/kg DXR given to rats by i.v. bolus once a week for 3 weeks resulted in severe chronic cardiotoxicity that lasted 6 weeks and was characterized by S alpha T-segment widening, T-wave flattening, and severe cardiac histological damage. Doses of 1.2 mg/kg I-DXR and 1.2 and 2.4 mg/kg I-DXRol, given i.v. once a week for 3 weeks, and 3.6 mg/kg I-DXRol given as a single dose were associated with a significant T-wave voltage reduction; I-DXR and 2.4 mg/kg I-DXRol induced significant histological alterations of cardiac tissue as compared with control values, whereas modest alterations of heart tissue were observed after injections of 1.2 and 3.6 mg/kg I-DXRol in three doses and in a single dose, respectively. The cytotoxicity of the three anthracyclines against one glioblastoma cell line and two human small-cell lung cancer lines was similar. Results indicate that the acute cardiotoxicity of I-DXRol is lower than that of I-DXR and DXR, whereas the chronic heart damage is similar to that induced by I-DXR and significantly lower compared than that caused by DXR. Moreover, the cytotoxicity of the metabolite appears to be similar to that of I-DXR and DXR. The lack of additional cardiac toxicity due to I-DXRol further supports the lower overall cardiac toxicity of I-DXR, which retains a cytotoxic activity similar to that of the parent drug. [ABSTRACT FROM AUTHOR]

The effects of fructose-1,6-diphosphate, an intermediate metabolite of glycolysis, on acute and chronic cardiotoxicity of doxorubicin were investigated in rats. In the acute study, urethane-anaesthetized Wistar female rats treated with 10 mg/kg i.v. doxorubicin developed a widening of the S alpha T segment, an impairment of +dP/dtmax, and tachycardia. Pretreatment with 375 and 750 mg/kg i.p. fructose-1,6-diphosphate prevented the S alpha T segment from widening, whereas only 750 mg/kg i.p. significantly attenuated the heart rate increase. Chronic cardiomyopathy was induced over a 6-week period by weekly doses of 3 mg/kg i.v. doxorubicin, being characterized in vivo by the progressive enlargement of the S alpha T segment and the occurrence of histological alterations and in vitro by a marked impairment of the inotropic response elicited by adrenaline in isolated hearts from treated rats. Concurrent treatment with 150 and 300 mg/kg i.p. fructose-1,6-diphosphate thrice a week for 6 weeks did not lessen the chronic heart damage, whereas 600 mg/kg given i.p. significantly reduced the widening of the S alpha T segment and the severity of histological damage in vivo, as well as significantly improving the contractile responses of hearts in vitro. These findings suggest that the administration of fructose-1,6-diphosphate plays a protective role in the acute and chronic cardiotoxicity of doxorubicin in the rat. [ABSTRACT FROM AUTHOR]

The skin penetration of roxithromycin was studied in 27 surgical patients treated with 300 mg orally followed by three oral doses of 150 mg 12-hourly. Peak plasma and skin concentrations of 7.9±1.2 mg/l and 31.3±3.7 mg/kg occurred 2.5 and 4 h after last dosing respectively. The plasma and skin half-lives were 7.7 and 6.0 h, and the mean plasma and skin area under the curve values were 64.3 mg/l.h and 155.3 mg/kg.h. Skin/plasma concentration ratios were 4.9±0.5, 9.7±1.2, 7.6±0.8 and 5.9±1.1, at 3, 4, 5 and 6 h after last dosing respectively. These results demonstrate that roxithromycin achieves high levels in human skin. [ABSTRACT FROM PUBLISHER]

Real-time/performed electroacoustic music is currently facing a serious sustainability problem. Although historically its production is very recent, several technological revolutions have gone by in the meantime. Most of these works can hardly be performed because the technology involved has gone lost since the first realization, and no long-standing notational precaution was ever taken. This paper (first published in 2005 and translated in Italian for the first time) presents some typical case studies and introduces some techniques that might lead to a partial -- when not completely adequate -- solution to the sustainability problem. [ABSTRACT FROM AUTHOR]

Background Symptoms of digestive dysfunction in patients with Parkinson's disease ( PD) occur at all stages of the disease, often preceding the onset of central motor symptoms. On the basis of these PD-preceding symptoms it has been proposed that PD could initiate in the gut, and that the presence of alpha-synuclein aggregates, or Lewy bodies in the enteric nervous system might represent one of the earliest signs of the disease. Following this hypothesis, much research has been focused on the digestive tract to unravel the mechanisms underlying the onset and progression of PD, with particular attention to the role of alterations in enteric neurotransmission in the pathophysiology of intestinal motility disturbances. There is also evidence suggesting that the development of central nigrostriatal neurodegeneration is associated with the occurrence of gut inflammation, characterized by increments of tissue pro-inflammatory markers and oxidative stress, which might support conditions of bowel neuromotor abnormalities. Purpose The present review intends to provide an integrated and critical appraisal of the available knowledge on the alterations of enteric neuromuscular pathways regulating gut motor activity both in humans and preclinical models of PD. Moreover, we will discuss the possible involvement of neuro-immune mechanisms in the pathophysiology of aberrant gastrointestinal gut transit and neuromuscular activity in the small and large bowel. [ABSTRACT FROM AUTHOR]