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  1. Article ; Online: Surgical Training for Transanal Total Mesorectal Excision in a Live Animal Model: A Preliminary Experience.

    Grieco, Michele / Elmore, Ugo / Vignali, Andrea / Caristo, Maria Emiliana / Persiani, Roberto

    Journal of laparoendoscopic & advanced surgical techniques. Part A

    2022  Volume 32, Issue 8, Page(s) 866–870

    Abstract: Background: ...

    Abstract Background:
    MeSH term(s) Animals ; Cadaver ; Female ; Humans ; Laparoscopy/methods ; Operative Time ; Postoperative Complications/surgery ; Proctectomy/methods ; Rectal Neoplasms/surgery ; Rectum/surgery ; Swine ; Transanal Endoscopic Surgery/methods
    Language English
    Publishing date 2022-02-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1381909-4
    ISSN 1557-9034 ; 1092-6429
    ISSN (online) 1557-9034
    ISSN 1092-6429
    DOI 10.1089/lap.2021.0845
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: ForePass endoscopic bypass device for obesity and insulin resistance-metabolic treatment in a swine model.

    Angelini, Giulia / Galvao Neto, Manoel / Boskoski, Ivo / Caristo, Maria Emiliana / Russo, Sara / Proto, Luca / Previti, Elena / Olsson, Lisa / Aggarwal, Hobby / Pezzica, Samantha / Ferrari, Elisa / Bove, Vincenzo / Genco, Alfredo / Bornstein, Stefan / Tremaroli, Valentina / Gastaldelli, Amalia / Mingrone, Geltrude

    Gut

    2024  Volume 73, Issue 4, Page(s) 568–572

    MeSH term(s) Swine ; Animals ; Insulin Resistance ; Obesity/surgery ; Bariatric Surgery ; Endoscopes ; Gastric Bypass ; Obesity, Morbid/surgery
    Language English
    Publishing date 2024-03-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 80128-8
    ISSN 1468-3288 ; 0017-5749
    ISSN (online) 1468-3288
    ISSN 0017-5749
    DOI 10.1136/gutjnl-2023-331335
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Photons detected in the active nerve by photographic technique.

    Zangari, Andrea / Micheli, Davide / Galeazzi, Roberta / Tozzi, Antonio / Balzano, Vittoria / Bellavia, Gabriella / Caristo, Maria Emiliana

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 3022

    Abstract: The nervous system is one of the most complex expressions of biological evolution. Its high performance mostly relies on the basic principle of the action potential, a sequential activation of local ionic currents along the neural fiber. The implications ...

    Abstract The nervous system is one of the most complex expressions of biological evolution. Its high performance mostly relies on the basic principle of the action potential, a sequential activation of local ionic currents along the neural fiber. The implications of this essentially electrical phenomenon subsequently emerged in a more comprehensive electromagnetic perspective of neurotransmission. Several studies focused on the possible role of photons in neural communication and provided evidence of the transfer of photons through myelinated axons. A hypothesis is that myelin sheath would behave as an optical waveguide, although the source of photons is controversial. In a previous work, we proposed a model describing how photons would arise at the node of Ranvier. In this study we experimentally detected photons in the node of Ranvier by Ag
    Language English
    Publishing date 2021-02-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-82622-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Feasibility and safety of a new endoscopic synthetic sealant nebulizing device over gastric endoscopic submucosal dissections.

    Boškoski, Ivo / Hamanaka, Jun / Barbaro, Federico / Arena, Vincenzo / Mascagni, Pietro / Caristo, Maria Emiliana / De Siena, Martina / Gallo, Camilla / Costamagna, Guido

    Surgical endoscopy

    2021  Volume 35, Issue 7, Page(s) 4048–4054

    Abstract: Background: Endoscopic Submucosal Dissection (ESD) is the treatment of choice of superficial neoplastic gastrointestinal lesions. Delayed bleedings and perforations are still current clinical concerns. Glubran 2 is a synthetic cyanoacrylate-derived glue ...

    Abstract Background: Endoscopic Submucosal Dissection (ESD) is the treatment of choice of superficial neoplastic gastrointestinal lesions. Delayed bleedings and perforations are still current clinical concerns. Glubran 2 is a synthetic cyanoacrylate-derived glue nowadays already widely used as an effective tissue adhesive. ENDONEB is a novel device thought for enabling the sealant nebulization over a specific targeted surface during laparotomy, laparoscopy, and thoracotomy. The aim of this single-center preclinical animal trial is to evaluate the feasibility and safety of the same nebulization technique during ESD in the perspective that further clinical studies would demonstrate the efficacy of Glubran 2 in preventing post-ESD adverse events.
    Methods: Four live Landrace pigs were enrolled. Two approximately 30-mm-wide gastric ESDs were performed in each pig (experimental ESD and control ESD). About 0.5 mL of Glubran 2 was nebulized on the experimental ESDs. Subjective perception of the feasibility of the Glubran 2 nebulization was reported. Pigs were clinically monitored at follow-up and upper GI endoscopy was performed at 24 and 48 hours, when animals were euthanized to perform a macroscopic and histological analysis of the specimens.
    Results: No peri-procedural adverse events were reported. Glubran 2 nebulization over experimental ESDs showed to be technically easy and time-effective. Clinical and endoscopic animal monitoring was negative at follow-up. At 24 hours, the Glubran 2 film was clearly visible on the eschar of the ESDs and signs of initial hydrolysis were discernable at 48 hours. No signs of peritoneal reaction were observed at the macroscopic examination. Equal transmural inflammation was described at the histological examination of both types of ESDs.
    Conclusions: Safety and feasibility profiles of Glubran 2 nebulizing ENDONEB device over ESD surfaces were excellent. Further evidences and human trials are needed to investigate its effectiveness in ESDs' eschars sealing and, thus, in delayed micro-perforations and bleedings prevention and treatment.
    MeSH term(s) Animals ; Endoscopic Mucosal Resection/adverse effects ; Feasibility Studies ; Gastric Mucosa/surgery ; Laparoscopy ; Stomach ; Swine ; Treatment Outcome
    Language English
    Publishing date 2021-04-13
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 639039-0
    ISSN 1432-2218 ; 0930-2794
    ISSN (online) 1432-2218
    ISSN 0930-2794
    DOI 10.1007/s00464-021-08480-4
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  5. Article ; Online: Intensive exercise ameliorates motor and cognitive symptoms in experimental Parkinson's disease restoring striatal synaptic plasticity.

    Marino, Gioia / Campanelli, Federica / Natale, Giuseppina / De Carluccio, Maria / Servillo, Federica / Ferrari, Elena / Gardoni, Fabrizio / Caristo, Maria Emiliana / Picconi, Barbara / Cardinale, Antonella / Loffredo, Vittorio / Crupi, Francesco / De Leonibus, Elvira / Viscomi, Maria Teresa / Ghiglieri, Veronica / Calabresi, Paolo

    Science advances

    2023  Volume 9, Issue 28, Page(s) eadh1403

    Abstract: Intensive physical activity improves motor functions in patients with Parkinson's disease (PD) at early stages. However, the mechanisms underlying the beneficial effects of exercise on PD-associated neuronal alterations have not been fully clarified yet. ...

    Abstract Intensive physical activity improves motor functions in patients with Parkinson's disease (PD) at early stages. However, the mechanisms underlying the beneficial effects of exercise on PD-associated neuronal alterations have not been fully clarified yet. Here, we tested the hypothesis that an intensive treadmill training program rescues alterations in striatal plasticity and early motor and cognitive deficits in rats receiving an intrastriatal injection of alpha-synuclein (α-syn) preformed fibrils. Improved motor control and visuospatial learning in active animals were associated with a recovery of dendritic spine density alterations and a lasting rescue of a physiological corticostriatal long-term potentiation (LTP). Pharmacological analyses of LTP show that modulations of
    MeSH term(s) Rats ; Animals ; Parkinson Disease/therapy ; Neuronal Plasticity/physiology ; Corpus Striatum ; Long-Term Potentiation/physiology ; Cognition
    Language English
    Publishing date 2023-07-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2810933-8
    ISSN 2375-2548 ; 2375-2548
    ISSN (online) 2375-2548
    ISSN 2375-2548
    DOI 10.1126/sciadv.adh1403
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  6. Article ; Online: Federation of European Laboratory Animal Science Associations recommendations of best practices for the health management of ruminants and pigs used for scientific and educational purposes.

    Berset Convenor, Felasa Working Group On Farm Animals Corina Mihaela / Caristo, Maria Emiliana / Ferrara, Fabienne / Hardy, Patrick / Oropeza-Moe, Marianne / Waters, Ryan

    Laboratory animals

    2020  Volume 55, Issue 2, Page(s) 117–128

    Abstract: Most ruminants and pigs used for scientific and educational aims are bred not for these purposes but in a farm environment. Given the wide range of diseases that these species might have, ensuring that the animals' health status is appropriate can be ... ...

    Abstract Most ruminants and pigs used for scientific and educational aims are bred not for these purposes but in a farm environment. Given the wide range of diseases that these species might have, ensuring that the animals' health status is appropriate can be complex and challenging. The Federation of European Laboratory Animal Science Associations has previously published recommendations for the health monitoring of experimental colonies of pigs (1998) and, respectively, calves, sheep and goats (2000). Unfortunately, the uptake of those recommendations was poor and insufficiently reported in scientific publications. These new recommendations for best practice focus on the main species of ruminants (cattle, sheep and goats) and pigs. They provide general and specific information helpful for designing a health management programme for the suppliers and for the user establishments, as well as guidance on animal procurement. Critical thinking based on the fields of use of the animals is promoted, aiming to help in taking informed decisions rather than establishing an exhaustive exclusion list for pathogens. Implementing the best health and welfare management practices should be done under the guidance of a competent attending veterinarian, with expertise and sufficient authority to take the appropriate action, doubled by excellent communication skills. It is strongly recommended that the user establishment's veterinarian works in close collaboration with the supplier's veterinarian.
    MeSH term(s) Animal Husbandry/standards ; Animal Welfare/standards ; Animals ; Animals, Laboratory ; Laboratory Animal Science/standards ; Ruminants ; Sus scrofa
    Language English
    Publishing date 2020-08-09
    Publishing country England
    Document type Guideline ; Journal Article
    ZDB-ID 391008-8
    ISSN 1758-1117 ; 0023-6772
    ISSN (online) 1758-1117
    ISSN 0023-6772
    DOI 10.1177/0023677220944461
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  7. Article ; Online: Duodenal-jejunal bypass improves nonalcoholic fatty liver disease independently of weight loss in rodents with diet-induced obesity.

    Angelini, Giulia / Castagneto-Gissey, Lidia / Casella-Mariolo, James / Caristo, Maria Emiliana / Russo, Maria Francesca / Lembo, Erminia / Verrastro, Ornella / Stefanizzi, Gianluigi / Marini, Pier Luigi / Casella, Giovanni / Bornstein, Stefan R / Rubino, Francesco / Mingrone, Geltrude

    American journal of physiology. Gastrointestinal and liver physiology

    2020  Volume 319, Issue 4, Page(s) G502–G511

    Abstract: Nonalcoholic fatty liver disease (NAFLD) is the most common cause of liver-related mortality. NAFLD is associated with obesity, hepatic fat accumulation, and insulin resistance, all of which contribute to its pathophysiology. Weight-loss is the main ... ...

    Abstract Nonalcoholic fatty liver disease (NAFLD) is the most common cause of liver-related mortality. NAFLD is associated with obesity, hepatic fat accumulation, and insulin resistance, all of which contribute to its pathophysiology. Weight-loss is the main therapy for NAFLD, and metabolic surgery is the most effective treatment for morbid obesity and its metabolic comorbidities. Although has been reported that Roux-en-Y gastric bypass can reverse NAFLD, it is unclear whether such effects result from reduced weight, from a lower calorie-intake, or from the direct influence of surgery on mechanisms contributing to NAFLD. We aimed to investigate whether gastrointestinal (GI) bypass surgery could induce direct effects on hepatic fat accumulation and insulin resistance, independently of weight reduction. Twenty Wistar rats on a high-fat diet underwent duodenal-jejunal-bypass (DJB) or sham operation and were pair fed (PF) for 15 wk after surgery to obtain a matched weight. Outcome measures include ectopic fat deposition, expression of genes and proteins involved in fat metabolism, insulin-signaling, and gluconeogenesis in liver and muscle. Despite no differences in body weight and calorie intake, DJB showed lower ectopic fat accumulation, improved peripheral and hepatic insulin sensitivity, and enhanced lipid droplet degradation. In both tissues, DJB increased insulin signaling, whereas hepatic key enzymes involved in gluconeogenesis and de novo lipogenesis were decreased. These findings suggest that DJB can reverse, independently of weight loss, ectopic fat deposition and insulin resistance, two features of NAFLD that share a mutual pathway, in which perilipin-2 (PLIN2) seems to be the main player, supporting further investigation into strategies that target the gut to treat metabolic liver diseases.
    MeSH term(s) Animals ; Diet, High-Fat/adverse effects ; Duodenum ; Energy Intake/physiology ; Female ; Gastric Bypass ; Gluconeogenesis ; Jejunum ; Lipid Metabolism/physiology ; Lipogenesis ; Liver/physiopathology ; Male ; Non-alcoholic Fatty Liver Disease/etiology ; Non-alcoholic Fatty Liver Disease/physiopathology ; Non-alcoholic Fatty Liver Disease/surgery ; Obesity/complications ; Obesity/etiology ; Rats ; Rats, Wistar ; Weight Loss
    Language English
    Publishing date 2020-08-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603840-2
    ISSN 1522-1547 ; 0193-1857
    ISSN (online) 1522-1547
    ISSN 0193-1857
    DOI 10.1152/ajpgi.00357.2019
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  8. Article: Longitudinal study of cardiac electrical activity in anesthetized guinea pigs by contactless magnetocardiography.

    Brisinda, Donatella / Caristo, Maria Emiliana / Fenici, Riccardo

    Physiological measurement

    2007  Volume 28, Issue 8, Page(s) 773–792

    Abstract: Guinea pigs (GPs) are used for preclinical evaluation of electrophysiologic effects of new drugs, because their myocytes have human-like action potentials and ventricular repolarization's (VR) ion currents. This study was aimed to assess the reliability ... ...

    Abstract Guinea pigs (GPs) are used for preclinical evaluation of electrophysiologic effects of new drugs, because their myocytes have human-like action potentials and ventricular repolarization's (VR) ion currents. This study was aimed to assess the reliability of magnetocardiographic (MCG) mapping for longitudinal studies of GP cardiac electrical activity. Eighteen anesthetized GPs were investigated with an unshielded 36-channel MCG instrumentation, at the age of 5 months (268.1 +/- 19 g). Twelve GPs survived and were restudied when 14 months old (595.6 +/- 90.5 g). RR, PR, QRS, QT(peak), QT(end), JT(peak), JT(end) and T(peak-end) intervals were measured from MCG waveforms. Magnetic field (MF) maps, equivalent current dipole (ECD) parameters and current density imaging were also analyzed. A significant prolongation of the PR (p < 0.05) and QRS (p < 0.001) intervals was found at 14 months. Gender-related differences of VR intervals were not significant. P(peak) and QRS(peak) MFs were similar in all animals, while T(peak) MF varied interindividually at 5 months and showed a rotation in some animals, at 14 months. The ECD strengths, measured at the P(peak), QRS(peak) and T(peak) were stronger (p < 0.01) at the age of 14 months than at 5 months. In contrast to findings in Wistar rats, age-related and gender-related differences of MCG VR parameters were not significant in GPs. Further work is necessary to clarify the variability of VR MF observed in healthy GPs.
    MeSH term(s) Aging/physiology ; Anesthesia ; Animals ; Electrocardiography ; Electrophysiology ; Female ; Guinea Pigs ; Heart/growth & development ; Heart/physiology ; Heart Rate/physiology ; Longitudinal Studies ; Magnetocardiography/methods ; Male ; Ventricular Function
    Language English
    Publishing date 2007-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 1149545-5
    ISSN 0967-3334
    ISSN 0967-3334
    DOI 10.1088/0967-3334/28/8/002
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  9. Article: Decellularized esophageal tubular scaffold microperforated by quantum molecular resonance technology and seeded with mesenchymal stromal cells for tissue engineering esophageal regeneration.

    Marzaro, Maurizio / Pozzato, Gianantonio / Tedesco, Stefano / Algeri, Mattia / Pozzato, Alessandro / Tomao, Luigi / Montano, Ilaria / Torroni, Filippo / Balassone, Valerio / Contini, Anna Chiara Iolanda / Guerra, Luciano / D'Angelo, Tommaso / Federici di Abriola, Giovanni / Lupoi, Lorenzo / Caristo, Maria Emiliana / Boškoski, Ivo / Costamagna, Guido / Francalanci, Paola / Astori, Giuseppe /
    Bozza, Angela / Bagno, Andrea / Todesco, Martina / Trovalusci, Emanuele / Oglio, Luigi Dall' / Locatelli, Franco / Caldaro, Tamara

    Frontiers in bioengineering and biotechnology

    2022  Volume 10, Page(s) 912617

    Abstract: Current surgical options for patients requiring esophageal replacement suffer from several limitations and do not assure a satisfactory quality of life. Tissue engineering techniques for the creation of customized "self-developing" esophageal substitutes, ...

    Abstract Current surgical options for patients requiring esophageal replacement suffer from several limitations and do not assure a satisfactory quality of life. Tissue engineering techniques for the creation of customized "self-developing" esophageal substitutes, which are obtained by seeding autologous cells on artificial or natural scaffolds, allow simplifying surgical procedures and achieving good clinical outcomes. In this context, an appealing approach is based on the exploitation of decellularized tissues as biological matrices to be colonized by the appropriate cell types to regenerate the desired organs. With specific regard to the esophagus, the presence of a thick connective texture in the decellularized scaffold hampers an adequate penetration and spatial distribution of cells. In the present work, the Quantum Molecular Resonance
    Language English
    Publishing date 2022-10-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2719493-0
    ISSN 2296-4185
    ISSN 2296-4185
    DOI 10.3389/fbioe.2022.912617
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  10. Article: Successful muscle regeneration by a homologous microperforated scaffold seeded with autologous mesenchymal stromal cells in a porcine esophageal substitution model.

    Marzaro, Maurizio / Algeri, Mattia / Tomao, Luigi / Tedesco, Stefano / Caldaro, Tamara / Balassone, Valerio / Contini, Anna Chiara / Guerra, Luciano / Federici D'Abriola, Giovanni / Francalanci, Paola / Caristo, Maria Emiliana / Lupoi, Lorenzo / Boskoski, Ivo / Bozza, Angela / Astori, Giuseppe / Pozzato, Gianantonio / Pozzato, Alessandro / Costamagna, Guido / Dall'Oglio, Luigi

    Therapeutic advances in gastroenterology

    2020  Volume 13, Page(s) 1756284820923220

    Abstract: Background: Since the esophagus has no redundancy, congenital and acquired esophageal diseases often require esophageal substitution, with complicated surgery and intestinal or gastric transposition. Peri-and-post-operative complications are frequent, ... ...

    Abstract Background: Since the esophagus has no redundancy, congenital and acquired esophageal diseases often require esophageal substitution, with complicated surgery and intestinal or gastric transposition. Peri-and-post-operative complications are frequent, with major problems related to the food transit and reflux. During the last years tissue engineering products became an interesting therapeutic alternative for esophageal replacement, since they could mimic the organ structure and potentially help to restore the native functions and physiology. The use of acellular matrices pre-seeded with cells showed promising results for esophageal replacement approaches, but cell homing and adhesion to the scaffold remain an important issue and were investigated.
    Methods: A porcine esophageal substitute constituted of a decellularized scaffold seeded with autologous bone marrow-derived mesenchymal stromal cells (BM-MSCs) was developed. In order to improve cell seeding and distribution throughout the scaffolds, they were micro-perforated by Quantum Molecular Resonance (QMR) technology (Telea Electronic Engineering).
    Results: The treatment created a microporous network and cells were able to colonize both outer and inner layers of the scaffolds. Non seeded (NSS) and BM-MSCs seeded scaffolds (SS) were implanted on the thoracic esophagus of 4 and 8 pigs respectively, substituting only the muscle layer in a mucosal sparing technique. After 3 months from surgery, we observed an esophageal substenosis in 2/4 NSS pigs and in 6/8 SS pigs and a non-practicable stricture in 1/4 NSS pigs and 2/8 SS pigs. All the animals exhibited a normal weight increase, except one case in the SS group. Actin and desmin staining of the post-implant scaffolds evidenced the regeneration of a muscular layer from one anastomosis to another in the SS group but not in the NSS one.
    Conclusions: A muscle esophageal substitute starting from a porcine scaffold was developed and it was fully repopulated by BM-MSCs after seeding. The substitute was able to recapitulate in shape and function the original esophageal muscle layer.
    Language English
    Publishing date 2020-05-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2440710-0
    ISSN 1756-2848 ; 1756-283X
    ISSN (online) 1756-2848
    ISSN 1756-283X
    DOI 10.1177/1756284820923220
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