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  1. Article ; Online: Gastrin: a new branch of the gastropancreatic axis that can explain the effect of sleeve gastrectomy on glucose metabolism.

    Pérez-Arana, Gonzalo-Martín / Almorza-Gomar, David / Mayo-Ossorio, Maria-Angeles / Ramírez, Alonso Camacho / Castro-Santiago, María-Jesús / Valverde-Martínez, Amparo / Casado-Maestre, María-Dolores / Visiedo, Francisco / Bohórquez-Sierra, Juan Carlos / Prada-Oliveira, José-Arturo

    Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract

    2024  Volume 28, Issue 4, Page(s) 381–388

    Abstract: Background: Among bariatric techniques, sleeve gastrectomy (SG) stands out owing to its efficiency. The role of the stomach as a secretory organ of many substances, such as gastrin, related to insulin secretion is well known. Gastrin induces insulin ... ...

    Abstract Background: Among bariatric techniques, sleeve gastrectomy (SG) stands out owing to its efficiency. The role of the stomach as a secretory organ of many substances, such as gastrin, related to insulin secretion is well known. Gastrin induces insulin release in isolated pancreatic islets, limiting somatostatin-14 intraislet release, and has been associated with blood glucose level improvement in diabetic models after SG. SG involves gastric resection along the greater curvature. This study aimed to determine the role of gastrin in glucose metabolism improvement after SG with the aid of the gastrin antagonist netazepide.
    Methods: In 12 sham-operated, 12 SG-operated, and 12 SG-operated/netazepide-treated Wistar rats, we compared medium- and long-term plasma insulin, oral glucose tolerance test (OGTT) results, and plasma gastrin levels. In addition, gastrin expression was assessed in the gastric remnant, and the beta-cell mass was measured.
    Results: SG induced a medium-term elevation of the insulin response and plasma gastrin levels without modification of the OGTT results. However, long-term depletion of the insulin response with elevated OGTT areas under the curve and plasma gastrin levels appeared after SG. Netazepide prevented the SG effect on these parameters. Gastrin tissue expression was greater in SG animals than in SG/netazepide-treated or control animals. The beta-cell mass was lower in the SG group than in the control or SG/netazepide group.
    Conclusion: Gastrin plays a central role in glucose improvement after SG. It stimulates a medium-term strong insulin response but also causes long-term beta-cell mass depletion and a loss of insulin response. These effects are prevented by gastrin antagonists such as netazepide.
    MeSH term(s) Rats ; Animals ; Gastrins/metabolism ; Rats, Wistar ; Glucose/metabolism ; Insulin ; Gastrectomy/methods ; Blood Glucose/metabolism ; Diabetes Mellitus, Type 2/surgery ; Benzodiazepinones ; Phenylurea Compounds
    Chemical Substances YF 476 (HOU4I0G29C) ; Gastrins ; Glucose (IY9XDZ35W2) ; Insulin ; Blood Glucose ; Benzodiazepinones ; Phenylurea Compounds
    Language English
    Publishing date 2024-01-23
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2012365-6
    ISSN 1873-4626 ; 1934-3213 ; 1091-255X
    ISSN (online) 1873-4626 ; 1934-3213
    ISSN 1091-255X
    DOI 10.1016/j.gassur.2024.02.015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Pancreas is a preeminent source of ghrelin after sleeve gastrectomy in Wistar rats.

    Camacho-Ramírez, Alonso / Mayo-Ossorio, María Ángeles / Pacheco-García, José Manuel / Almorza-Gomar, David / Ribelles-García, Antonio / Belmonte-Núñez, Ana / Prada-Oliveira, J Arturo / Pérez-Arana, Gonzalo M

    Histology and histopathology

    2020  Volume 35, Issue 8, Page(s) 801–809

    Abstract: Many surgical techniques are employed in the treatment of severe obesity. A main consequence of these techniques is the improvement of type 2 Diabetes mellitus. Ghrelin is a gut hormone released in the gastric fundus and corpus, which has been related to ...

    Abstract Many surgical techniques are employed in the treatment of severe obesity. A main consequence of these techniques is the improvement of type 2 Diabetes mellitus. Ghrelin is a gut hormone released in the gastric fundus and corpus, which has been related to diabetic improvement as mentioned in these papers. Sleeve gastrectomy and Roux-en Y Gastric Bypass are surgical techniques broadly employed in humans; both severely reduce the gastric surface. Paradoxically, the serum level of ghrelin in patients is preserved. We hypothesized about the role of embryonic pancreatic epsilon cells, which have the capacity to release ghrelin. We studied the changes in the epsilon cells and differentiation markers with immunostaining and ghrelin serum level and after surgery. We employed euglycemic male Wistar rats: two surgical groups (Sleeve gastrectomy and Roux-en Y Gastric Bypass) and two control groups. We reported a significant increase of ghrelin epsilon-cells in the pancreas and basal serum after Sleeve gastrectomy versus the control groups. The epsilon cellular increment was related to neogenesis, as the neurogenin-3 marker revealed. The Roux-en Y Gastric Bypass showed neither epsilon cell increase nor basal serum changes in ghrelin release. As a conclusion, we reported that the severe suppression of the fundus gastric produced the recovery of ghrelin released by the epsilon cells, which was indicative of an ontogenic embryonic pancreatic function.
    Language English
    Publishing date 2020-01-17
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 83911-5
    ISSN 1699-5848 ; 0213-3911
    ISSN (online) 1699-5848
    ISSN 0213-3911
    DOI 10.14670/HH-18-200
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Glucagon-Producing Cell Expansion in Wistar Rats. Changes to Islet Architecture After Sleeve Gastrectomy.

    Bancalero-delosReyes, José / Camacho-Ramírez, Alonso / Fernández-Vivero, José / Ribelles-García, Antonio / Macías-Rodríguez, Manuel / Almorza-Gomar, David / Carrasco-Molinillo, Carmen / Mayo-Ossorio, María Ángeles / Prada-Oliveira, José-Arturo / Perez-Arana, Gonzalo-Martín

    Obesity surgery

    2021  Volume 31, Issue 5, Page(s) 2241–2249

    Abstract: Purpose: Many studies about bariatric surgery have analyzed the effect of sleeve gastrectomy (SG) on glucose improvement, beta-cell mass, and islet size modification. The effects of SG on the other endocrine cells of the pancreas, such as the alpha-cell ...

    Abstract Purpose: Many studies about bariatric surgery have analyzed the effect of sleeve gastrectomy (SG) on glucose improvement, beta-cell mass, and islet size modification. The effects of SG on the other endocrine cells of the pancreas, such as the alpha-cell population, and their regulatory mechanisms remain less studied.
    Materials and methods: We focused our work on the changes in the alpha-cell population after SG in a healthy model of Wistar rats. We measured alpha-cell mass, glucose tolerance, and insulin release after oral glucose tolerance tests and plasma glucagon secretion patterns after insulin infusion. Three Wistar rat groups were employed: SG-operated, surgical control (Sham), and fasting control.
    Results: The results obtained showed significant increases in the alpha-cell population after SG. The result was an increase in beta-cell transdifferentiation; it was shown by some expressed molecules (the loss of expression of Pdx-1 and the increase in Arx and Pax6 cells/mm
    Conclusion: We concluded that SG leads to an expansion of the alpha-cell population, at expense of beta-cell; this expansion of alpha-cells is related to transdifferentiation. Plasma glucose level was not affected due to an increased glucagon response.
    MeSH term(s) Animals ; Blood Glucose ; Gastrectomy ; Glucagon ; Glucagon-Like Peptide 1 ; Insulin ; Jejunum ; Obesity, Morbid/surgery ; Rats ; Rats, Wistar
    Chemical Substances Blood Glucose ; Insulin ; Glucagon-Like Peptide 1 (89750-14-1) ; Glucagon (9007-92-5)
    Language English
    Publishing date 2021-02-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-021-05264-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: 30-Day Morbidity and Mortality of Bariatric Surgery During the COVID-19 Pandemic: a Multinational Cohort Study of 7704 Patients from 42 Countries.

    Singhal, Rishi / Ludwig, Christian / Rudge, Gavin / Gkoutos, Georgios V / Tahrani, Abd / Mahawar, Kamal / Pędziwiatr, Michał / Major, Piotr / Zarzycki, Piotr / Pantelis, Athanasios / Lapatsanis, Dimitris P / Stravodimos, Georgios / Matthys, Chris / Focquet, Marc / Vleeschouwers, Wouter / Spaventa, Antonio G / Zerrweck, Carlos / Vitiello, Antonio / Berardi, Giovanna /
    Musella, Mario / Sanchez-Meza, Alberto / Cantu, Felipe J / Mora, Fernando / Cantu, Marco A / Katakwar, Abhishek / Reddy, D Nageshwar / Elmaleh, Haitham / Hassan, Mohammad / Elghandour, Abdelrahman / Elbanna, Mohey / Osman, Ahmed / Khan, Athar / Layani, Laurent / Kiran, Nalini / Velikorechin, Andrey / Solovyeva, Maria / Melali, Hamid / Shahabi, Shahab / Agrawal, Ashish / Shrivastava, Apoorv / Sharma, Ankur / Narwaria, Bhavya / Narwaria, Mahendra / Raziel, Asnat / Sakran, Nasser / Susmallian, Sergio / Karagöz, Levent / Akbaba, Murat / Pişkin, Salih Zeki / Balta, Ahmet Ziya / Senol, Zafer / Manno, Emilio / Iovino, Michele Giuseppe / Qassem, Mohamed / Arana-Garza, Sebastián / Povoas, Heitor P / Vilas-Boas, Marcos Leão / Naumann, David / Super, Jonathan / Li, Alan / Ammori, Basil J / Balamoun, Hany / Salman, Mohammed / Nasta, Amrit Manik / Goel, Ramen / Sánchez-Aguilar, Hugo / Herrera, Miguel F / Abou-Mrad, Adel / Cloix, Lucie / Mazzini, Guilherme Silva / Kristem, Leonardo / Lazaro, Andre / Campos, Jose / Bernardo, Joaquín / González, Jesús / Trindade, Carlos / Viveiros, Octávio / Ribeiro, Rui / Goitein, David / Hazzan, David / Segev, Lior / Beck, Tamar / Reyes, Hernán / Monterrubio, Jerónimo / García, Paulina / Benois, Marine / Kassir, Radwan / Contine, Alessandro / Elshafei, Moustafa / Aktas, Sueleyman / Weiner, Sylvia / Heidsieck, Till / Level, Luis / Pinango, Silvia / Ortega, Patricia Martinez / Moncada, Rafael / Valenti, Victor / Vlahović, Ivan / Boras, Zdenko / Liagre, Arnaud / Martini, Francesco / Juglard, Gildas / Motwani, Manish / Saggu, Sukhvinder Singh / Al Moman, Hazem / López, Luis Adolfo Aceves / Cortez, María Angelina Contreras / Zavala, Rodrigo Aceves / D'Haese, Christine / Kempeneers, Ivo / Himpens, Jacques / Lazzati, Andrea / Paolino, Luca / Bathaei, Sarah / Bedirli, Abdulkadir / Yavuz, Aydın / Büyükkasap, Çağrı / Özaydın, Safa / Kwiatkowski, Andrzej / Bartosiak, Katarzyna / Walędziak, Maciej / Santonicola, Antonella / Angrisani, Luigi / Iovino, Paola / Palma, Rossella / Iossa, Angelo / Boru, Cristian Eugeniu / De Angelis, Francesco / Silecchia, Gianfranco / Hussain, Abdulzahra / Balchandra, Srivinasan / Coltell, Izaskun Balciscueta / Pérez, Javier Lorenzo / Bohra, Ashok / Awan, Altaf K / Madhok, Brijesh / Leeder, Paul C / Awad, Sherif / Al-Khyatt, Waleed / Shoma, Ashraf / Elghadban, Hosam / Ghareeb, Sameh / Mathews, Bryan / Kurian, Marina / Larentzakis, Andreas / Vrakopoulou, Gavriella Zoi / Albanopoulos, Konstantinos / Bozdag, Ahemt / Lale, Azmi / Kirkil, Cuneyt / Dincer, Mursid / Bashir, Ahmad / Haddad, Ashraf / Hijleh, Leen Abu / Zilberstein, Bruno / de Marchi, Danilo Dallago / Souza, Willy Petrini / Brodén, Carl Magnus / Gislason, Hjörtur / Shah, Kamran / Ambrosi, Antonio / Pavone, Giovanna / Tartaglia, Nicola / Kona, S Lakshmi Kumari / Kalyan, K / Perez, Cesar Ernesto Guevara / Botero, Miguel Alberto Forero / Covic, Adrian / Timofte, Daniel / Maxim, Madalina / Faraj, Dashti / Tseng, Larissa / Liem, Ronald / Ören, Gürdal / Dilektasli, Evren / Yalcin, Ilker / AlMukhtar, Hudhaifa / Al Hadad, Mohammed / Mohan, Rasmi / Arora, Naresh / Bedi, Digvijaysingh / Rives-Lange, Claire / Chevallier, Jean-Marc / Poghosyan, Tigran / Sebbag, Hugues / Zinaï, Lamia / Khaldi, Saadi / Mauchien, Charles / Mazza, Davide / Dinescu, Georgiana / Rea, Bernardo / Pérez-Galaz, Fernando / Zavala, Luis / Besa, Anais / Curell, Anna / Balibrea, Jose M / Vaz, Carlos / Galindo, Luis / Silva, Nelson / Caballero, José Luis Estrada / Sebastian, Sergio Ortiz / Marchesini, João Caetano Dallegrave / da Fonseca Pereira, Ricardo Arcanjo / Sobottka, Wagner Herbert / Fiolo, Felipe Eduardo / Turchi, Matias / Coelho, Antonio Claudio Jamel / Zacaron, Andre Luis / Barbosa, André / Quinino, Reynaldo / Menaldi, Gabriel / Paleari, Nicolás / Martinez-Duartez, Pedro / de Aragon Ramírez de Esparza, Gabriel Martínez / Esteban, Valentin Sierra / Torres, Antonio / Garcia-Galocha, Jose Luis / Josa, Miguel / Pacheco-Garcia, Jose Manuel / Mayo-Ossorio, Maria Angeles / Chowbey, Pradeep / Soni, Vandana / de Vasconcelos Cunha, Hercio Azevedo / Castilho, Michel Victor / Ferreira, Rafael Meneguzzi Alves / Barreiro, Thiago Alvim / Charalabopoulos, Alexandros / Sdralis, Elias / Davakis, Spyridon / Bomans, Benoit / Dapri, Giovanni / Van Belle, Koenraad / Takieddine, Mazen / Vaneukem, Pol / Karaca, Esma Seda Akalın / Karaca, Fatih Can / Sumer, Aziz / Peksen, Caghan / Savas, Osman Anil / Chousleb, Elias / Elmokayed, Fahad / Fakhereldin, Islam / Aboshanab, Hany Mohamed / Swelium, Talal / Gudal, Ahmad / Gamloo, Lamees / Ugale, Ayushka / Ugale, Surendra / Boeker, Clara / Reetz, Christian / Hakami, Ibrahim Ali / Mall, Julian / Alexandrou, Andreas / Baili, Efstratia / Bodnar, Zsolt / Maleckas, Almantas / Gudaityte, Rita / Guldogan, Cem Emir / Gundogdu, Emre / Ozmen, Mehmet Mahir / Thakkar, Deepti / Dukkipati, Nandakishore / Shah, Poonam Shashank / Shah, Shashank Subhashchandra / Shah, Simran Shashank / Adil, Md Tanveer / Jambulingam, Periyathambi / Mamidanna, Ravikrishna / Whitelaw, Douglas / Jain, Vigyan / Veetil, Deepa Kizhakke / Wadhawan, Randeep / Torres, Max / Tinoco, Tabata / Leclercq, Wouter / Romeijn, Marleen / van de Pas, Kelly / Alkhazraji, Ali K / Taha, Safwan A / Ustun, Murat / Yigit, Taner / Inam, Aatif / Burhanulhaq, Muhammad / Pazouki, Abdolreza / Eghbali, Foolad / Kermansaravi, Mohammad / Jazi, Amir Hosein Davarpanah / Mahmoudieh, Mohsen / Mogharehabed, Neda / Tsiotos, Gregory / Stamou, Konstantinos / Barrera Rodriguez, Francisco J / Rojas Navarro, Marco A / Torres, Omar MOhamed / Martinez, Sergio Lopez / Tamez, Elda Rocio Maltos / Millan Cornejo, Gustavo A / Flores, Jose Eduardo Garcia / Mohammed, Diya Aldeen / Elfawal, Mohamad Hayssam / Shabbir, Asim / Guowei, Kim / So, Jimmy By / Kaplan, Elif Tuğçe / Kaplan, Mehmet / Kaplan, Tuğba / Pham, DangTuan / Rana, Gurteshwar / Kappus, Mojdeh / Gadani, Riddish / Kahitan, Manish / Pokharel, Koshish / Osborne, Alan / Pournaras, Dimitri / Hewes, James / Napolitano, Errichetta / Chiappetta, Sonja / Bottino, Vincenzo / Dorado, Evelyn / Schoettler, Axel / Gaertner, Daniel / Fedtke, Katharina / Aguilar-Espinosa, Francisco / Aceves-Lozano, Saul / Balani, Alessandro / Nagliati, Carlo / Pennisi, Damiano / Rizzi, Andrea / Frattini, Francesco / Foschi, Diego / Benuzzi, Laura / Parikh, Chirag / Shah, Harshil / Pinotti, Enrico / Montuori, Mauro / Borrelli, Vincenzo / Dargent, Jerome / Copaescu, Catalin A / Hutopila, Ionut / Smeu, Bogdan / Witteman, Bart / Hazebroek, Eric / Deden, Laura / Heusschen, Laura / Okkema, Sietske / Aufenacker, Theo / den Hengst, Willem / Vening, Wouter / van der Burgh, Yonta / Ghazal, Ahmad / Ibrahim, Hamza / Niazi, Mourad / Alkhaffaf, Bilal / Altarawni, Mohammad / Cesana, Giovanni Carlo / Anselmino, Marco / Uccelli, Matteo / Olmi, Stefano / Stier, Christine / Akmanlar, Tahsin / Sonnenberg, Thomas / Schieferbein, Uwe / Marcolini, Alejandro / Awruch, Diego / Vicentin, Marco / de Souza Bastos, Eduardo Lemos / Gregorio, Samuel Azenha / Ahuja, Anmol / Mittal, Tarun / Bolckmans, Roel / Wiggins, Tom / Baratte, Clément / Wisnewsky, Judith Aron / Genser, Laurent / Chong, Lynn / Taylor, Lillian / Ward, Salena / Hi, Michael W / Heneghan, Helen / Fearon, Naomi / Plamper, Andreas / Rheinwalt, Karl / Geoghegan, Justin / Ng, Kin Cheung / Kaseja, Krzysztof / Kotowski, Maciej / Samarkandy, Tarig A / Leyva-Alvizo, Adolfo / Corzo-Culebro, Lourdes / Wang, Cunchuan / Yang, Wah / Dong, Zhiyong / Riera, Manel / Jain, Rajesh / Hamed, Hosam / Said, Mohammed / Zarzar, Katia / Garcia, Manuel / Türkçapar, Ahmet Gökhan / Şen, Ozan / Baldini, Edoardo / Conti, Luigi / Wietzycoski, Cacio / Lopes, Eduardo / Pintar, Tadeja / Salobir, Jure / Aydin, Cengiz / Atici, Semra Demirli / Ergin, Anıl / Ciyiltepe, Huseyin / Bozkurt, Mehmet Abdussamet / Kizilkaya, Mehmet Celal / Onalan, Nezihe Berrin Dodur / Zuber, Mariana Nabila Binti Ahmad / Wong, Wei Jin / Garcia, Amador / Vidal, Laura / Beisani, Marc / Pasquier, Jorge / Vilallonga, Ramon / Sharma, Sharad / Parmar, Chetan / Lee, Lyndcie / Sufi, Pratik / Sinan, Hüseyin / Saydam, Mehmet

    Obesity surgery

    2021  Volume 31, Issue 10, Page(s) 4272–4288

    Abstract: Background: There are data on the safety of cancer surgery and the efficacy of preventive strategies on the prevention of postoperative symptomatic COVID-19 in these patients. But there is little such data for any elective surgery. The main objectives ... ...

    Abstract Background: There are data on the safety of cancer surgery and the efficacy of preventive strategies on the prevention of postoperative symptomatic COVID-19 in these patients. But there is little such data for any elective surgery. The main objectives of this study were to examine the safety of bariatric surgery (BS) during the coronavirus disease 2019 (COVID-19) pandemic and to determine the efficacy of perioperative COVID-19 protective strategies on postoperative symptomatic COVID-19 rates.
    Methods: We conducted an international cohort study to determine all-cause and COVID-19-specific 30-day morbidity and mortality of BS performed between 01/05/2020 and 31/10/2020.
    Results: Four hundred ninety-nine surgeons from 185 centres in 42 countries provided data on 7704 patients. Elective primary BS (n = 7084) was associated with a 30-day morbidity of 6.76% (n = 479) and a 30-day mortality of 0.14% (n = 10). Emergency BS, revisional BS, insulin-treated type 2 diabetes, and untreated obstructive sleep apnoea were associated with increased complications on multivariable analysis. Forty-three patients developed symptomatic COVID-19 postoperatively, with a higher risk in non-whites. Preoperative self-isolation, preoperative testing for SARS-CoV-2, and surgery in institutions not concurrently treating COVID-19 patients did not reduce the incidence of postoperative COVID-19. Postoperative symptomatic COVID-19 was more likely if the surgery was performed during a COVID-19 peak in that country.
    Conclusions: BS can be performed safely during the COVID-19 pandemic with appropriate perioperative protocols. There was no relationship between preoperative testing for COVID-19 and self-isolation with symptomatic postoperative COVID-19. The risk of postoperative COVID-19 risk was greater in non-whites or if BS was performed during a local peak.
    MeSH term(s) Bariatric Surgery ; COVID-19 ; COVID-19 Testing ; Cohort Studies ; Diabetes Mellitus, Type 2 ; Humans ; Incidence ; Obesity, Morbid/surgery ; Pandemics ; Postoperative Complications/epidemiology ; SARS-CoV-2
    Language English
    Publishing date 2021-07-30
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-021-05493-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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