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Santos PVL, Jerônimo LB, Ribeiro WSC, Lopes GM, Leão Neto JHDC, da Silva HBO, da Silva PIC, Silva RC, da Silva JK, Freitas JJS, Mourão RHV, Setzer WN, Maia JGS, Figueiredo PLB. Exploring the impact of seasonal variations on the chemical composition, antinociceptive, and anti-inflammatory properties of Pogostemon heyneanus Benth. essential oil. Front Pharmacol 2024; 15:1336878. [PMID: 38362154 PMCID: PMC10867209 DOI: 10.3389/fphar.2024.1336878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 01/17/2024] [Indexed: 02/17/2024] Open
Abstract
Background: Pogostemon heyneanus leaves infusions are relevant in ethnopharmacology for treating colds, coughs, headaches, and asthma. Purpose: The essential oil chemical composition of a Pogostemon heyneanus specimen was monthly monitored from October 2021 to July 2022 to evaluate the climatic influences on its yield and chemical composition and antinociceptive, andanti-inflammatory properties. Methods: The leaves, collected monthly over a 10-month period, were submitted to hydrodistillation. The oils obtained were analyzed by gas chromatography coupled to a mass spectrometer and gas chromatography coupled to flame ionization detector. The P. heyneanus essential oil (PhEO) was tested in vivo to evaluate its peripheral analgesic actions through the abdominal writhing test induced by acetic acid, and peripheral analgesia by tail immersion. Neurogenic and inflammatory pain were evaluated by formalin test, and acute oral toxicity of the oil was also verified. Results: PhEO presented 27 chemical constituents with the highest predominance of patchoulol (43.6%-76.9%), α-bulnesene (0.2%-12.7%), α-guaiene (0.4%-8.9%), seychellene (3.8%-5.1%) and pogostol (0.0%-8.2%). The climatic parameters insolation, humidity, rainfall, and temperature did not influence the essential oil yield or the main chemical constituents, except for pogostol, which presented a strong (r = 0.73) and statistically significant (p < 0.05) correlation with temperature. PhEO did not display toxicity at the maximum 300 mg/kg dosage. The oil showed low peripheral and central analgesic action at 100 mg/kg, while in the neurogenic and inflammatory pain inhibition tests, no actions related to PhEO were observed. In the carrageenan-induced peritonitis test, PhEO did not reduce the migration of leukocytes to the peritoneal cavity compared to the control group. Conclusion: Pogostemon heyneanus is a resistant plant to seasonal influences and a source of patchoulol. Despite ethnopharmacological indications, no in-vivo biological activities such as neurogenic or inflammatory pain were identified in the present work. So, the low influence of the climatic parameters on chemical composition can infer that the low pharmacological activity is also not subject to climatic variations, that is, it does not change due to the climate.
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Affiliation(s)
- Paulo Vinicius Lima Santos
- Programa de Pós-graduação em Ciências Farmacêuticas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
- Laboratório de Química dos Produtos Naturais, Universidade do Estado do Pará, Belém, Brazil
| | - Lucas Botelho Jerônimo
- Laboratório de Química dos Produtos Naturais, Universidade do Estado do Pará, Belém, Brazil
| | | | - Gustavo Moraes Lopes
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, Brazil
| | - João Henrique de Castro Leão Neto
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, Brazil
| | - Hugo Borges Oliveira da Silva
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, Brazil
| | - Pedro Iuri C. da Silva
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, Brazil
- Programa de Pós-graduação em Farmacologia e Bioquímica, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Renata Cunha Silva
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, Brazil
| | - Joyce Kelly da Silva
- Programa de Pós-graduação em Farmacologia e Bioquímica, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Jofre Jacob S. Freitas
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, Brazil
| | - Rosa Helena V. Mourão
- Laboratório de Bioprospecção e Biologia Experimental, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | | | - José Guilherme S. Maia
- Programa de Pós-graduação em Ciências Farmacêuticas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | - Pablo Luis B. Figueiredo
- Programa de Pós-graduação em Ciências Farmacêuticas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
- Laboratório de Química dos Produtos Naturais, Universidade do Estado do Pará, Belém, Brazil
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de Jesus ENS, Tavares MS, Barros PAC, Miller DC, da Silva PIC, Freitas JJS, de Lima AB, Setzer WN, da Silva JKR, Figueiredo PLB. Chemical composition, antinociceptive and anti-inflammatory activities of the curzerene type essential oil of Eugenia uniflora from Brazil. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116859. [PMID: 37390874 DOI: 10.1016/j.jep.2023.116859] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Eugenia uniflora leaf infusion is widely used in folk medicine to treat gastroenteritis, fever, hypertension, inflammatory and diuretic diseases. AIM OF THE STUDY This work evaluated the acute oral toxic, antinociceptive, and anti-inflammatory activities of the curzerene chemotype of Eugenia uniflora essential oil (EuEO). MATERIAL AND METHODS EuEO was obtained by hydrodistillation and analyzed by GC and GC-MS. The antinociceptive action in mice was evaluated for the peripheral and central analgesic activity using abdominal contortion and hot plate tests (50, 100, and 200 mg/kg); xylene-induced ear swelling was carried out for the nociception test, and carrageenan-induced cell migration test. Spontaneous locomotor activity was assessed in the open field test to rule out any nonspecific sedative or muscle relaxant effects of EuEO. RESULTS The EuEO displayed a yield of 2.6 ± 0.7%. The major compounds classes were oxygenated sesquiterpenoids (57.3 ± 0.2%), followed by sesquiterpene hydrocarbons (16.4 ± 2.6). The chemical constituents with the highest concentrations were curzerene (33.4 ± 8.5%), caryophyllene oxide (7.6 ± 2.8%), β-elemene (6.5 ± 1.8%), and E-caryophyllene (4.1 ± 0.3%). Oral treatment with EuEO, at doses of 50, 300, and 2000 mg/kg, did not change the behavior patterns or mortality of the animals. EuEO (300 mg/kg) did not cause a reduction in the number of crossings in the open field compared to the vehicle group. The aspartate aminotransferase (AST) level was higher in EuEO-treated groups (50 and 2000 mg/kg) when compared to the control group (p < 0.05). EuEO, at doses of 50, 100, and 200 mg/kg, reduced the number of abdominal writhings by 61.66%, 38.33%, and 33.33%. EuEO did not show increased hot plate test time latency in any of the intervals analyzed. At 200 mg/kg, EuEO decreased paw licking time, with inhibition of 63.43%. In formalin-induced acute pain, EuEO decreased paw licking time at doses of 50, 100, and 200 mg/kg in the first phase, with inhibition of 30.54%, 55.02%, and 80.87%. The groups treated with EuEO at doses of 50, 100, and 200 mg/kg showed ear edema reduction of 50.26%, 55.17%, and 51.31%, respectively. Moreover, EuEO inhibited leukocyte recruitment only at a dose of 200 mg/kg. The inhibitory values of leukocyte recruitment after 4 h of carrageenan application were 4.86%, 4.93%, and 47.25% for 50, 100, and 200 mg/kg of essential oil, respectively. CONCLUSION The EuEO, curzerene chemotype, has significant antinociceptive and anti-inflammatory activities and low acute oral toxicity. This work confirms the antinociceptive and anti-inflammatory of this species as the traditional use.
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Affiliation(s)
- Ellen Nayara Silva de Jesus
- Laboratório de Química dos Produtos Naturais, Universidade do Estado do Pará, Belém, 66087-662, Brazil; Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, 66087-662, Brazil.
| | - Mateus Silva Tavares
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, 66087-662, Brazil.
| | - Pedro Aníbal C Barros
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, 66087-662, Brazil.
| | - Daniele Carvalho Miller
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, 66087-662, Brazil; Programa de Pós- Graduação em Química Medicinal e Modelagem Molecular, Universidade Federal do Pará, Belém, 66075-110, Brazil.
| | - Pedro Iuri C da Silva
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, 66087-662, Brazil; Programa de Pós-graduação em Farmacologia e Bioquímica, Instituto de Ciências Biológicas, Universidade Federal do Pará, 66075-110, Brazil.
| | - Jofre Jacob S Freitas
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, 66087-662, Brazil.
| | - Anderson B de Lima
- Laboratório de Morfofisiologia Aplicada a Saúde, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará, Belém, 66087-662, Brazil.
| | - William N Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT, 84043, USA.
| | - Joyce Kelly R da Silva
- Programa de Pós-graduação em Farmacologia e Bioquímica, Instituto de Ciências Biológicas, Universidade Federal do Pará, 66075-110, Brazil; Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT, 84043, USA.
| | - Pablo Luis B Figueiredo
- Laboratório de Química dos Produtos Naturais, Universidade do Estado do Pará, Belém, 66087-662, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas, Instituto de Ciências da Saúde, Universidade Federal do Pará, 66075-110, Brazil.
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Ji Y, Liu S, Zhang J, Qu L, Wu J, Liu H, Cheng Z. Construction of HPQ-based activatable fluorescent probe for peroxynitrite and its application in ferroptosis and mice model of LPS-induced inflammation. Bioorg Chem 2023; 138:106650. [PMID: 37302314 DOI: 10.1016/j.bioorg.2023.106650] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/21/2023] [Accepted: 05/31/2023] [Indexed: 06/13/2023]
Abstract
As one of the important members of reactive oxygen species, ONOO- plays a crucial role in signal transduction, immune response, and other physiological activities. Aberrant changes in ONOO- levels in the living organism are usually associated with many diseases. Therefore, it is important to establish a highly selective and sensitive method for the determination of ONOO- in vivo. Herein, we designed a novel ratio near-infrared fluorescent probe for ONOO- by directly conjugating dicyanoisophorone (DCI) to hydroxyphenyl-quinazolinone (HPQ). Surprisingly, HPQD was unaffected by environmental viscosity and responded rapidly to ONOO- within 40 s. The linear range of ONOO- detection was from 0 μM to 35 μM. Impressively, HPQD did not react with reactive oxygen species and was sensitive to exogenous/endogenous ONOO- in live cells. We also investigated the relationship between ONOO- and ferroptosis and achieved in vivo diagnosis and efficacy evaluation of mice model of LPS-induced inflammation, which showed promising prospects of HPQD in ONOO--related studies.
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Affiliation(s)
- Yuxiang Ji
- Department of Radiotherapy, Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China; Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan 571199, China
| | - Sha Liu
- Department of Radiotherapy, Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
| | - Jian Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, China.
| | - Linruikang Qu
- Department of Radiotherapy, Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
| | - Jinsheng Wu
- Department of Radiotherapy, Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
| | - Heng Liu
- Department of Radiotherapy, Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China.
| | - Ziyi Cheng
- Department of Radiotherapy, Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China.
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Ishihara M, Nakamura A, Takahashi Y, Minegishi Y, Matsuo K, Tanaka K. Failure of peritoneal lavage to prevent operative site infection and peritoneal tumor recurrence in pancreatic surgery. Langenbecks Arch Surg 2023; 408:333. [PMID: 37624419 DOI: 10.1007/s00423-023-03080-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 08/18/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Although intraoperative peritoneal lavage often is performed routinely with the aim of reducing peritoneal contamination, evidence of lavage benefit in elective pancreatic surgery is limited. METHODS We retrospectively classified patients who had undergone pancreatic surgery to groups given or not given peritoneal lavage, then comparing clinical results. This saline lavage was performed at the end of the operation. The primary endpoint was rate of surgical site infection. Frequency of peritoneal recurrence also was evaluated. RESULTS Among all 104 patients in the study, incidence of infectious complications in the lavage group (n = 65) was significantly higher than in the non-lavage group (n = 39; 35% vs. 15%, P = 0.041), while incidences of postoperative complications overall and surgical site infection did not differ between lavage (80% and 26%) and non-lavage groups (67% and 10%, P = 0.162 and 0.076, respectively). Among 63 patients undergoing pancratoduodenectomy, frequencies of positive bacterial cultures of drainage fluids on postoperative days 1 and 3 were greater in the non-lavage group (P < 0.001 and P = 0.012), but surgical site infection was significantly more frequent in the lavage group (P = 0.043). Among patients with pancreatic and biliary cancers, lavage did not affect frequency of peritoneal recurrence. CONCLUSION Intraoperative lavage did not prevent surgical site infection or peritoneal recurrence of pancreatobiliary cancer.
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Affiliation(s)
- Mai Ishihara
- General and Gastroenterological Surgery, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama, Kanagawa, 227-8501, Japan
| | - Akihiro Nakamura
- General and Gastroenterological Surgery, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama, Kanagawa, 227-8501, Japan
| | - Yuki Takahashi
- General and Gastroenterological Surgery, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama, Kanagawa, 227-8501, Japan
| | - Yuzo Minegishi
- General and Gastroenterological Surgery, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama, Kanagawa, 227-8501, Japan
| | - Kenichi Matsuo
- General and Gastroenterological Surgery, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama, Kanagawa, 227-8501, Japan
| | - Kuniya Tanaka
- General and Gastroenterological Surgery, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama, Kanagawa, 227-8501, Japan.
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Uetsu Y, Houston D, Bailey C, Kilpatrick S. Association of the origin of contamination and species of microorganisms with short-term survival in dogs with septic peritonitis. Aust Vet J 2023; 101:83-89. [PMID: 36424833 DOI: 10.1111/avj.13220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 08/25/2022] [Accepted: 11/04/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To assess the association between anatomical location of contamination and mortality in dogs with gastrointestinal and biliary origin of septic peritonitis. METHODS Medical records at two private referral hospitals between 2003 and 2020 were retrospectively reviewed. Cases were included if the origin of contamination was confirmed intraoperatively within the gastrointestinal or biliary tract. Cases were excluded if the dog died or was euthanized intraoperatively or where the data regarding the origin of contamination were not available. The association of anatomical origin with survival was assessed specifying the locations as stomach, small intestine, large intestine and biliary tract. The gastrointestinal tract origin was further subdivided into pylorus, nonpylorus, duodenum, jejunum, ileum, caecum and colon. RESULTS The overall survival rate was 75.9% (n = 44/58). There were no significant differences in survival among different anatomical origins of contaminations before or after subdivision (P = 0.349 and 0.832, respectively). Also, there was no association between isolated microorganism species in microbiological culture and the anatomical origin (P = 0.951) and the microorganism species was not associated with survival (P = 0.674). CONCLUSIONS There was no association between anatomical location of leakage, microorganism species and survival although further studies are warranted to analyse the relationships between anatomical leakage site and microorganism species as well as microorganism species and mortality.
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Affiliation(s)
- Y Uetsu
- North Shore Veterinary, Specialist & Emergency Centre, Artarmon, New South Wales, Australia
| | - D Houston
- Small Animal Specialist Hospital, Prospect, New South Wales, Australia
| | - C Bailey
- North Shore Veterinary, Specialist & Emergency Centre, Artarmon, New South Wales, Australia
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Yasukawa K, Umemura K, Shimizu A, Kubota K, Notake T, Hosoda K, Hayashi H, Soejima Y. Impact of large amount of intra-abdominal lavage on surveillance of surgical site infection after hepato-pancreato-biliary surgery: A prospective cohort study. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2022. [PMID: 36458411 DOI: 10.1002/jhbp.1289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND/PURPOSE In hepatobiliary and pancreatic (HBP) surgery, the role and significance of intra-abdominal lavage (IAL) for surgical site infection (SSI) is controversial. METHODS This prospective study was performed between July 2020 and July 2022. A total of 150 patients, 10-L IAL was performed. The lavage fluid at 1-L, 5-L, and 10-L was subjected to bacterial culture examination. Risk factors for SSI were evaluated. RESULTS Bacterial positivity rate significantly decreased as follows: 1-L, 36% (n = 54); 5-L, 27% (n = 41); 10-L, 23% (n = 35) (36% vs 23%, p = .001). Patients with positive lavage fluid culture at 10-L had significantly higher incidence of both incisional (37% vs 6%, p < .01) and organ/space (54% vs 3%, p < .01) SSI. Multivariate analysis revealed positivity for bacterial culture at 10-L as the strongest independent risk factor for incisional SSI (OR 13.0, 95% CI: 3.86-43.6, p < .01), followed by postoperative pancreatic fistula (OR 11.7, 95% CI: 3.03-45.6, p < .01). Likewise, in organ/space SSI, positivity for bacterial culture at 10-L was the strongest independent risk factor (OR 48.9, 95% CI:12.1-197.7, p < .01), followed by digestive reconstruction (OR 5.20, 95% CI: 1.45-18.6, p = .01). CONCLUSION IAL decreased the intraperitoneal contamination rate in a volume-dependent manner and can be useful in the surveillance of SSI development in HBP surgery.
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Affiliation(s)
- Koya Yasukawa
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kentaro Umemura
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Akira Shimizu
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Koji Kubota
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tsuyoshi Notake
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kiyotaka Hosoda
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hikaru Hayashi
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yuji Soejima
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
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Rathod S. T cells in the peritoneum. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 371:15-41. [PMID: 35964999 DOI: 10.1016/bs.ircmb.2022.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The peritoneal cavity is a fluid-packed area that houses most of the abdominal organs, including the omentum, a visceral adipose tissue with milky patches or groups of leukocytes organized in the same way to those observed in typical lymphoid tissues. A distinct population of leukocytes patrols the peritoneal cavity and travels in and out of the milky spots, facing antigens or pathogens in the peritoneal fluid and responding appropriately. T cells may play a crucial function in regulating adaptive immune responses to antigens in the peritoneal cavity to ensure tissue homeostasis and healing. When peritoneal homeostasis is interrupted by inflammation, infection, obesity, or tumor metastasis, the omentum's dedicated fibroblastic stromal cells and mesothelial cells control peritoneal leukocyte recruitment and activation in unique ways. T cells, which employ their T cell receptor to target specific antigens, are an important component of the acquired immune response since they are present in the peritoneal cavity. The peritoneum provides a different environment for T cells to respond to pathogens. This chapter outlines the anatomy relevant to T cell function and biology, such as antigen processing/presentation, T cell activation, and the many T cell subpopulations in the peritoneal cavity, as well as their role in cancer or other infection.
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Affiliation(s)
- Sanjay Rathod
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, United States.
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Mukherjee A. Isolation of Primary Normal and Cancer-Associated Adipocytes from the Omentum. Methods Mol Biol 2022; 2424:167-175. [PMID: 34918294 DOI: 10.1007/978-1-0716-1956-8_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The omentum is the metastatic site for intra-abdominal cancers such as colon, stomach, and ovarian (where it is the primary site for metastasis). Adipocytes are the primary cell type of the omentum, and they aid in cancer cell proliferation, migration, and invasion. Therefore, systematic characterization of adipocyte-cancer cell interactions will help in understanding the metastatic spread of intra-abdominal cancer. Here, a detailed mechanical-enzymatic digestion method describes the isolation of both normal and cancer-associated adipocyte from omental tissues.
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Affiliation(s)
- Abir Mukherjee
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL, USA.
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Biologically active lipids in the regulation of lymphangiogenesis in disease states. Pharmacol Ther 2021; 232:108011. [PMID: 34614423 DOI: 10.1016/j.pharmthera.2021.108011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/31/2021] [Accepted: 09/01/2021] [Indexed: 02/06/2023]
Abstract
Lymphatic vessels have crucial roles in the regulation of interstitial fluids, immune surveillance, and the absorption of dietary fat in the intestine. Lymphatic function is also closely related to the pathogenesis of various disease states such as inflammation, lymphedema, endometriosis, liver dysfunction, and tumor metastasis. Lymphangiogenesis, the formation of new lymphatic vessels from pre-existing lymphatic vessels, is a critical determinant in the above conditions. Although the effect of growth factors on lymphangiogenesis is well-characterized, and biologically active lipids are known to affect smooth muscle contractility and vasoaction, there is accumulating evidence that biologically active lipids are also important inducers of growth factors and cytokines that regulate lymphangiogenesis. This review discusses recent advances in our understanding of biologically active lipids, including arachidonic acid metabolites, sphingosine 1-phosphate, and lysophosphatidic acid, as regulators of lymphangiogenesis, and the emerging importance of the lymphangiogenesis as a therapeutic target.
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Matsuda H, Ito Y, Hosono K, Tsuru S, Inoue T, Nakamoto S, Kurashige C, Hirashima M, Narumiya S, Okamoto H, Majima M. Roles of Thromboxane Receptor Signaling in Enhancement of Lipopolysaccharide-Induced Lymphangiogenesis and Lymphatic Drainage Function in Diaphragm. Arterioscler Thromb Vasc Biol 2021; 41:1390-1407. [PMID: 33567865 DOI: 10.1161/atvbaha.120.315507] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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MESH Headings
- Animals
- Cells, Cultured
- Diaphragm/immunology
- Diaphragm/metabolism
- Disease Models, Animal
- Humans
- Inflammation/chemically induced
- Inflammation/immunology
- Inflammation/metabolism
- Inflammation/physiopathology
- Lipopolysaccharides
- Lymphangiogenesis/drug effects
- Lymphatic Vessels/drug effects
- Lymphatic Vessels/metabolism
- Macrophages, Peritoneal/immunology
- Macrophages, Peritoneal/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Receptors, Thromboxane A2, Prostaglandin H2/genetics
- Receptors, Thromboxane A2, Prostaglandin H2/metabolism
- Signal Transduction
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Thromboxane A2/metabolism
- Vascular Endothelial Growth Factor C/metabolism
- Vascular Endothelial Growth Factor D/metabolism
- Mice
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Affiliation(s)
- Hiromi Matsuda
- Department of Molecular Pharmacology, Graduate School of Medical Sciences (H.M., Y.I., K.H., S.T., T.I., S.N., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Department of Pharmacology (H.M., Y.I., K.H., S.T., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Department of Anesthesiology (H.M., S.T., C.K., H.O.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Yoshiya Ito
- Department of Molecular Pharmacology, Graduate School of Medical Sciences (H.M., Y.I., K.H., S.T., T.I., S.N., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Department of Pharmacology (H.M., Y.I., K.H., S.T., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Kanako Hosono
- Department of Molecular Pharmacology, Graduate School of Medical Sciences (H.M., Y.I., K.H., S.T., T.I., S.N., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Department of Pharmacology (H.M., Y.I., K.H., S.T., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Seri Tsuru
- Department of Molecular Pharmacology, Graduate School of Medical Sciences (H.M., Y.I., K.H., S.T., T.I., S.N., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Department of Pharmacology (H.M., Y.I., K.H., S.T., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Department of Anesthesiology (H.M., S.T., C.K., H.O.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Tomoyoshi Inoue
- Department of Molecular Pharmacology, Graduate School of Medical Sciences (H.M., Y.I., K.H., S.T., T.I., S.N., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Shuji Nakamoto
- Department of Molecular Pharmacology, Graduate School of Medical Sciences (H.M., Y.I., K.H., S.T., T.I., S.N., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Center for Innovation in Immunoregulation Technology and Therapeutics, Kyoto University Graduate School of Medicine, Japan (S.N.)
| | - Chie Kurashige
- Department of Anesthesiology (H.M., S.T., C.K., H.O.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Masanori Hirashima
- Division of Pharmacology, Graduate School of Medical and Dental Sciences, Niigata University, Japan (M.H.)
| | - Shuh Narumiya
- Center for Innovation in Immunoregulation Technology and Therapeutics, Kyoto University Graduate School of Medicine, Japan (S.N.)
| | - Hirotsugu Okamoto
- Department of Anesthesiology (H.M., S.T., C.K., H.O.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Masataka Majima
- Department of Molecular Pharmacology, Graduate School of Medical Sciences (H.M., Y.I., K.H., S.T., T.I., S.N., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
- Department of Pharmacology (H.M., Y.I., K.H., S.T., M.M.), School of Medicine, Kitasato University, Sagamihara, Kanagawa, Japan
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11
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Bass GA, Seamon MJ, Schwab CW. A surgeon's history of the omentum: From omens to patches to immunity. J Trauma Acute Care Surg 2021; 89:e161-e166. [PMID: 32925575 DOI: 10.1097/ta.0000000000002945] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Gary Alan Bass
- From the Division of Traumatology, Emergency Surgery, and Surgical Critical Care, Penn Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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12
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Shankar M, Uwamahoro N, Backman E, Holmberg S, Niemiec MJ, Roth J, Vogl T, Urban CF. Immune Resolution Dilemma: Host Antimicrobial Factor S100A8/A9 Modulates Inflammatory Collateral Tissue Damage During Disseminated Fungal Peritonitis. Front Immunol 2021; 12:553911. [PMID: 33717058 PMCID: PMC7953150 DOI: 10.3389/fimmu.2021.553911] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 01/18/2021] [Indexed: 11/17/2022] Open
Abstract
Intra-abdominal infection (peritonitis) is a leading cause of severe disease in surgical intensive care units, as over 70% of patients diagnosed with peritonitis develop septic shock. A critical role of the immune system is to return to homeostasis after combating infection. S100A8/A9 (calprotectin) is an antimicrobial and pro-inflammatory protein complex used as a biomarker for diagnosis of numerous inflammatory disorders. Here we describe the role of S100A8/A9 in inflammatory collateral tissue damage (ICTD). Using a mouse model of disseminated intra-abdominal candidiasis (IAC) in wild-type and S100A8/A9-deficient mice in the presence or absence of S100A9 inhibitor paquinimod, the role of S100A8/A9 during ICTD and fungal clearance were investigated. S100A8/A9-deficient mice developed less ICTD than wild-type mice. Restoration of S100A8/A9 in knockout mice by injection of recombinant protein resulted in increased ICTD and fungal clearance comparable to wild-type levels. Treatment with paquinimod abolished ICTD and S100A9-deficient mice showed increased survival compared to wild-type littermates. The data indicates that S100A8/A9 controls ICTD levels and antimicrobial activity during IAC and that targeting of S100A8/A9 could serve as promising adjunct therapy against this challenging disease.
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Affiliation(s)
- Madhu Shankar
- Department of Clinical Microbiology, Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden.,Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden
| | - Nathalie Uwamahoro
- Department of Clinical Microbiology, Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden.,Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden
| | - Emelie Backman
- Department of Clinical Microbiology, Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden.,Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden
| | - Sandra Holmberg
- Department of Medical Chemistry and Biophysics, Umeå University, Umeå, Sweden
| | - Maria Joanna Niemiec
- Department of Clinical Microbiology, Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden.,Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden
| | - Johannes Roth
- Institute of Immunology, Universitätsklinikum Münster, University of Münster, Münster, Germany
| | - Thomas Vogl
- Institute of Immunology, Universitätsklinikum Münster, University of Münster, Münster, Germany
| | - Constantin F Urban
- Department of Clinical Microbiology, Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden.,Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden
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13
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Jia X, Berta G, Gábris F, Kellermayer Z, Balogh P. Role of adipose-associated lymphoid tissues in the immunological homeostasis of the serosal surface. Immunol Lett 2020; 228:135-141. [PMID: 33166529 DOI: 10.1016/j.imlet.2020.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/13/2020] [Accepted: 11/03/2020] [Indexed: 11/30/2022]
Abstract
Although not typical lymphoid organs, analysis of the visceral adipose-associated lymphoid tissues has recently substantially expanded our knowledge about the immunological features of these elusive compartments. Recent data have highlighted their considerable complexity in cellular organization and interactions in several biological processes, including adaptive immune responses, tissue plasticity to accommodate mesenchymal stem cells and progenitors, and providing a suitable microenvironment for serosal tumor propagation. This review aims to present a comprehensive view of the adipose-associated lymphoid tissues in local and systemic immune responsiveness, with particular emphasis on the omental and mesenteric lymphoid tissues in the serosal defense of abdominal organs.
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Affiliation(s)
- Xinkai Jia
- Department of Immunology and Biotechnology, Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary; Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary
| | - Gergely Berta
- Department of Medical Biology and Central Electron Microscope Laboratory, Medical School, University of Pécs, Hungary
| | - Fanni Gábris
- Department of Immunology and Biotechnology, Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary; Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary
| | - Zoltán Kellermayer
- Department of Immunology and Biotechnology, Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary; Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary
| | - Péter Balogh
- Department of Immunology and Biotechnology, Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary; Lymphoid Organogenesis Research Group, Szentágothai Research Center, University of Pécs Medical School, Hungary.
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14
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Kim EK, Chae S, Ahn SH. Single-port laparoscopically harvested omental flap for immediate breast reconstruction. Breast Cancer Res Treat 2020; 184:375-384. [PMID: 32766951 DOI: 10.1007/s10549-020-05848-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 07/30/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE Immediate breast reconstruction using laparoscopically harvested omental flap is a safe and feasible technique, providing natural contour and softness to reconstructed breasts with reduced donor-site morbidity and deformity. We report our experience using single-port laparoscopically harvested omental flap (SLOF) for immediate breast reconstruction. METHODS Between February 2015 and December 2018, 129 patients with malignant neoplasm of the breast underwent nipple-sparing mastectomy (NSM) or breast-conserving surgery (BCS) followed by immediate SLOF reconstruction at Seoul National University Bundang Hospital. We assessed their clinicopathological data, complications, and cosmetic and oncologic outcomes. Cosmetic outcomes were evaluated by three-panel assessment and the BCCT.core software program. RESULTS One hundred and six (82.2%) underwent NSM and 23 (17.8%) underwent BCS. Mean operation time was 205 (range, 134-316) minutes. Most patients had early-stage disease; 15 (11.6%) received neoadjuvant chemotherapy. Two had malignant phyllodes tumors. Cosmetic outcomes were excellent or good in 96.9% by three-panel assessment and 99.2% by the BCCT.core program with a nearly invisible donor-site scar in the umbilicus. Harvest-associated complications occurred in five (3.9%) patients, including two umbilical wound infections, one intra-abdominal infection, one umbilical hernia, and one pedicle injury. Fat necrosis (13.2%) and epigastric bulging (21.7%) were common mastectomy- or reconstruction-associated complications, but most were mild and some resolved spontaneously. Over a median 38-month follow-up, there were three local, two regional, and three systemic recurrences. CONCLUSIONS SLOF reconstruction is a feasible and safe option for immediate breast reconstruction after NSM or extensive BCS with minimal donor-site morbidity and great cosmetic outcomes.
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Affiliation(s)
- Eun-Kyu Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea.
| | - Sumin Chae
- Department of Surgery, Kyung Hee University Medical Center, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sang-Hoon Ahn
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea
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15
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Glik A, Douvdevani A. T Lymphocytes: The “Cellular” Arm of Acquired Immunity in the Peritoneum. Perit Dial Int 2020. [DOI: 10.1177/089686080602600407] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
T cells are an important part of the acquired immune response and target specific antigen with their T cell receptor. The peritoneum is a special milieu within which T cells react. We describe briefly the anatomy important for T cell function. T cell biology including antigen presentation, T cell activation, and the different T cell subpopulations are reviewed. We also define innate and acquired immunity and describe the role of polymorphonuclear cells and peritoneal mesothelial cells in the regulation of leukocyte population recruitment during peritonitis. We focus particularly on peritoneal lymphocytes and compare them to the regular lymphocyte populations in the circulation. We illustrate the role of PMCs in antigen presentation and discuss the changes of CD4+ helper T cell subtypes (Th1 and Th2) during peritoneal dialysis. The role of CD8+ cytotoxic T lymphocytes and their possible destructive role for the peritoneal membrane modified by advanced glycation end products are discussed. Polymorphonuclear cells play an important role in the regulation of inflammation and immunity. We describe their possible role in supporting T cells and particularly for generating memory CD8+ T cells by secretion of interleukin-15, a potent T cell growth factor. Light is shed on γδ T cells, a special T cell population that is able to recognize antigens without the restriction of antigen presentation. We end our review with a description of regulatory T cells. This cell population is extremely important in preventing autoimmunity and in the regulation of acquired immunity.
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Affiliation(s)
- Amir Glik
- Department of Nephrology, Soroka Medical Center, and
Clinical Biochemistry Department, Faculty of Health Sciences, Ben Gurion University
of the Negev, Beer Sheva, Israel
| | - Amos Douvdevani
- Department of Nephrology, Soroka Medical Center, and
Clinical Biochemistry Department, Faculty of Health Sciences, Ben Gurion University
of the Negev, Beer Sheva, Israel
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16
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Abstract
Accumulating evidence highlights the importance of interactions between tumour cells and stromal cells for tumour initiation, progression, and metastasis. In tumours that contain adipocyte in their stroma, adipocytes contribute to modification of tumour microenvironment and affect metabolism of tumour and tumour progression by production of cytokines and adipokines from the lipids. The omentum and bone marrow (BM) are highly adipocyte-rich and are also common metastatic and primary tumour developmental sites. Omental adipocytes exhibit metabolic cross-talk, immune modulation, and angiogenesis. BM adipocytes secrete adipokines, and participate in solid tumour metastasis through regulation of the CCL2/CCR2 axis and metabolic interactions. BM adipocytes also contribute to the progression of hematopoietic neoplasms. Here, we here provide an overview of research progress on the cross-talks between omental/BM adipocytes and tumour cells, which may be pivotal modulators of tumour biology, thus highlighting novel therapeutic targets. Abbreviations: MCP-1, monocyte chemoattractant protein 1IL, interleukinSTAT3, signal transducer and activator of transcription 3FABP4, fatty acid binding protein 4PI3K/AKT, phosphoinositide 3-kinase/protein kinase BPPAR, peroxisome proliferator-activated receptorPUFA, polyunsaturated fatty acidTAM, tumour-associated macrophagesVEGF, vascular endothelial growth factorVEGFR, vascular endothelial growth factor receptorBM, bone marrowBMA, bone marrow adipocytesrBMA, regulated BMAcBMA, constitutive BMAUCP-1, uncoupling protein-1TNF-α, tumour necrosis factor-alphaRANKL, receptor activator of nuclear factor kappa-Β ligandVCAM-1, vascular cell adhesion molecule 1JAK2, Janus kinase 2CXCL (C–X–C motif) ligandPGE2, prostaglandin E2COX-2, cyclooxygenase-2CCL2, C-C motif chemokine ligand 2NF-κB, nuclear factor-kappa BMM, multiple myelomaALL, acute lymphoblastic leukemiaAML, acute myeloid leukemiaGDF15, growth differentiation factor 15AMPK, AMP-activated protein kinaseMAPK, mitogen-activated protein kinaseAPL, acute promyelocytic leukemiaCCR2, C-C motif chemokine receptor 2SDF-1α, stromal cell-derived factor-1 alphaFFA, free fatty acidsLPrA, leptin peptide receptor antagonistMCD, malonyl-CoA decarboxylase.
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Affiliation(s)
- Yoon Jin Cha
- Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea
| | - Ja Seung Koo
- Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea
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17
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Di Nicola V. Omentum a powerful biological source in regenerative surgery. Regen Ther 2019; 11:182-191. [PMID: 31453273 PMCID: PMC6700267 DOI: 10.1016/j.reth.2019.07.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 07/24/2019] [Indexed: 02/06/2023] Open
Abstract
The Omentum is a large flat adipose tissue layer nestling on the surface of the intra-peritoneal organs. Besides fat storage, omentum has key biological functions in immune-regulation and tissue regeneration. Omentum biological properties include neovascularization, haemostasis, tissue healing and regeneration and as an in vivo incubator for cells and tissue cultivation. Some of these properties have long been noted in surgical practice and used empirically in several procedures. In this review article, the author tries to highlight the omentum biological properties and their application in regenerative surgery procedures. Further, he has started a process of standardisation of basic biological principles to pave the way for future surgical practice.
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18
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Schurink B, Cleypool CGJ, Bleys RLAW. A rapid and simple method for visualizing milky spots in large fixed tissue samples of the human greater omentum. Biotech Histochem 2019; 94:429-434. [PMID: 30896309 DOI: 10.1080/10520295.2019.1583375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Milky spots are unique lymphoid structures in the greater omentum that participate in both immune homeostasis of the peritoneal cavity and formation of omental metastases. We developed a rapid and simple staining method to enable macro- or stereomicroscopic identification of these miniscule structures in large samples of fixed human greater omentum. By immersing approximately 6 × 4 cm samples of omental tissue in hematoxylin, these samples could be evaluated quickly for the presence of milky spots. We used an alum hematoxylin variant containing 1 g hematoxylin, 50 g aluminium ammonium sulfate, 0.2 g sodium iodide, 1 g citric acid and 50 g chloral hydrate. This staining method enabled us to determine the number, location, dimensions and topographical relation of milky spots to other structures. Our method also facilitates isolation of milky spots for further investigation. Hematoxylin imparts a blue color to the milky spots, which remains in place during further processing for paraffin embedding. This enabled easy recognition of milky spots during transfer through various solutions and permitted selection of relevant paraffin slides prior to additional staining.
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Affiliation(s)
- B Schurink
- Department of Anatomy, Division of Surgical Specialties, University Medical Center Utrecht, Utrecht University, the Netherlands , Utrecht , The Netherlands
| | - C G J Cleypool
- Department of Anatomy, Division of Surgical Specialties, University Medical Center Utrecht, Utrecht University, the Netherlands , Utrecht , The Netherlands
| | - R L A W Bleys
- Department of Anatomy, Division of Surgical Specialties, University Medical Center Utrecht, Utrecht University, the Netherlands , Utrecht , The Netherlands
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19
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Bartosova M, Schmitt CP. Biocompatible Peritoneal Dialysis: The Target Is Still Way Off. Front Physiol 2019; 9:1853. [PMID: 30700974 PMCID: PMC6343681 DOI: 10.3389/fphys.2018.01853] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 12/07/2018] [Indexed: 01/01/2023] Open
Abstract
Peritoneal dialysis (PD) is a cost-effective, home-based therapy for patients with end-stage renal disease achieving similar outcome as compared to hemodialysis. Still, a minority of patients only receive PD. To a significant extend, this discrepancy is explained by major limitations regarding PD efficiency and sustainability. Due to highly unphysiological composition of PD fluids, the peritoneal membrane undergoes rapid morphological and long-term functional alterations, which limit the treatment and contribute to adverse patient outcome. This review is focused on the peritoneal membrane ultrastructure and its transformation in patients with kidney disease and chronic PD, underlying molecular mechanisms, and potential systemic sequelae. Current knowledge on the impact of conventional and second-generation PD fluids is described; novel strategies and innovative PD fluid types are discussed.
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Affiliation(s)
| | - Claus Peter Schmitt
- Center for Pediatric and Adolescent Medicine Heidelberg, University of Heidelberg, Heidelberg, Germany
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20
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Breslin JW, Yang Y, Scallan JP, Sweat RS, Adderley SP, Murfee WL. Lymphatic Vessel Network Structure and Physiology. Compr Physiol 2018; 9:207-299. [PMID: 30549020 DOI: 10.1002/cphy.c180015] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The lymphatic system is comprised of a network of vessels interrelated with lymphoid tissue, which has the holistic function to maintain the local physiologic environment for every cell in all tissues of the body. The lymphatic system maintains extracellular fluid homeostasis favorable for optimal tissue function, removing substances that arise due to metabolism or cell death, and optimizing immunity against bacteria, viruses, parasites, and other antigens. This article provides a comprehensive review of important findings over the past century along with recent advances in the understanding of the anatomy and physiology of lymphatic vessels, including tissue/organ specificity, development, mechanisms of lymph formation and transport, lymphangiogenesis, and the roles of lymphatics in disease. © 2019 American Physiological Society. Compr Physiol 9:207-299, 2019.
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Affiliation(s)
- Jerome W Breslin
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Ying Yang
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Joshua P Scallan
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Richard S Sweat
- Department of Biomedical Engineering, Tulane University, New Orleans, Tampa, Louisiana, USA
| | - Shaquria P Adderley
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Walter L Murfee
- Department of Biomedical Engineering, University of Florida, Gainesville, Florida, USA
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21
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Riggs J, Ladlow JF, Owen LJ, Hall JL. Novel application of internal obturator and semitendinosus muscle flaps for rectal wall repair or reinforcement. J Small Anim Pract 2018; 60:191-197. [DOI: 10.1111/jsap.12821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 01/19/2017] [Accepted: 05/15/2017] [Indexed: 11/27/2022]
Affiliation(s)
- J. Riggs
- The Queen's Veterinary School Hospital, Department of Veterinary Medicine; University of Cambridge; Cambridge CB3 0ES UK
| | - J. F. Ladlow
- The Queen's Veterinary School Hospital, Department of Veterinary Medicine; University of Cambridge; Cambridge CB3 0ES UK
| | - L. J. Owen
- The Queen's Veterinary School Hospital, Department of Veterinary Medicine; University of Cambridge; Cambridge CB3 0ES UK
| | - J. L. Hall
- The Queen's Veterinary School Hospital, Department of Veterinary Medicine; University of Cambridge; Cambridge CB3 0ES UK
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22
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Effect of the application of a bundle of three measures (intraperitoneal lavage with antibiotic solution, fascial closure with Triclosan-coated sutures and Mupirocin ointment application on the skin staples) on the surgical site infection after elective laparoscopic colorectal cancer surgery. Surg Endosc 2018; 32:3495-3501. [PMID: 29349539 DOI: 10.1007/s00464-018-6069-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 01/12/2018] [Indexed: 10/18/2022]
Abstract
BACKGROUND Surgical site infection (SSI) prevention bundles include the simultaneous use of different measures, which individually have demonstrated an effect on prevention of SSI. The implementation of bundles can yield superior results to the implementation of individual measures. The aim of this study was to address the effect of the application of a bundle including intraperitoneal lavage with antibiotic solution, fascial closure with Triclosan-coated sutures and Mupirocin ointment application on the skin staples, on the surgical site infection after elective laparoscopic colorectal cancer surgery. METHODS A prospective, randomized study was performed, including patients with diagnosis of colorectal neoplasms and plans to undergo an elective laparoscopic surgery. The patients were randomized into two groups: those patients following standard bundles (Group 1) and those ones following the experimental bundle with three additional measures, added to the standard bundle. Incisional and organ space SSI were investigated. The study was assessor-blinded. RESULTS A total of 198 patients were included in the study, 99 in each group. The incisional SSI rate was 16% in Group 1 and 2% in Group 2 [p = 0.007; RR = 5.6; CI 95% (1.4-17.8)]. The organ-space SSI rate was 4% in Group 1 and 0% in Group 2 [p = 0.039; RR = 1.7; CI 95% (1.1-11.6)]. Median hospital stay was 5.5 days in Group 1 and 4 days in Group 2 (p = 0.028). CONCLUSIONS The addition of intraperitoneal lavage with antibiotic solution, fascial closure with Triclosan-coated sutures and Mupirocin ointment application on the skin staples, to a standard bundle of SSI prevention, reduces the incisional and organ-space SSI and consequently the hospital stay, after elective laparoscopic colorectal cancer surgery (ClinicalTrials.gov Identifier: NCT03081962).
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23
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Chkourko Gusky H, Diedrich J, MacDougald OA, Podgorski I. Omentum and bone marrow: how adipocyte-rich organs create tumour microenvironments conducive for metastatic progression. Obes Rev 2016; 17:1015-1029. [PMID: 27432523 PMCID: PMC5056818 DOI: 10.1111/obr.12450] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 12/30/2022]
Abstract
A number of clinical studies have linked adiposity with increased cancer incidence, progression and metastasis, and adipose tissue is now being credited with both systemic and local effects on tumour development and survival. Adipocytes, a major component of benign adipose tissue, represent a significant source of lipids, cytokines and adipokines, and their presence in the tumour microenvironment substantially affects cellular trafficking, signalling and metabolism. Cancers that have a high predisposition to metastasize to the adipocyte-rich host organs are likely to be particularly affected by the presence of adipocytes. Although our understanding of how adipocytes influence tumour progression has grown significantly over the last several years, the mechanisms by which adipocytes regulate the metastatic niche are not well-understood. In this review, we focus on the omentum, a visceral white adipose tissue depot, and the bone, a depot for marrow adipose tissue, as two distinct adipocyte-rich organs that share common characteristic: they are both sites of significant metastatic growth. We highlight major differences in origin and function of each of these adipose depots and reveal potential common characteristics that make them environments that are attractive and conducive to secondary tumour growth. Special attention is given to how omental and marrow adipocytes modulate the tumour microenvironment by promoting angiogenesis, affecting immune cells and altering metabolism to support growth and survival of metastatic cancer cells.
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Affiliation(s)
- H Chkourko Gusky
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA
| | - J Diedrich
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA.,Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | - O A MacDougald
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA.,Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - I Podgorski
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA. .,Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA.
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Ruiz-Tovar J, Llavero C, Muñoz JL, Zubiaga L, Diez M. Effect of Peritoneal Lavage with Clindamycin-Gentamicin Solution on Post-Operative Pain and Analytic Acute-Phase Reactants after Laparoscopic Sleeve Gastrectomy. Surg Infect (Larchmt) 2016; 17:357-62. [PMID: 26910781 DOI: 10.1089/sur.2015.196] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Peritoneal lavage has been proposed to remove bacterial contamination and other materials promoting bacterial proliferation and pro-inflammatory cytokines that may enhance local inflammation. The aims of this study were to evaluate the effects of peritoneal lavage with physiologic saline or an antibiotic solution (clindamycin-gentamicin) on post-operative pain and analytic acute-phase reactants and to determine the microbiologic impact of both irrigations on peritoneal contamination in patients undergoing laparoscopic sleeve gastrectomy (LSG) as a bariatric procedure. METHODS The patients were randomized into two groups: Those undergoing an intra-abdominal lavage with physiologic saline (Group 1; n = 40) and those undergoing a similar lavage with a gentamicin-clindamycin solution (Group 2; n = 40). Peritoneal contamination, post-operative pain, and analytic acute-phase reactants 24 h after surgery were investigated. RESULTS The median pain score 24 h after surgery was 3.5 in Group 1 and 1.5 in Group 2 (p = 0.021). The glucose concentration (mean difference 33.1 mg/dL; p = 0.004), aspartate aminotransferase (AST) concentration (mean difference 41.8 U/L; p = 0.009), alanine aminotransferase (ALT) concentration (mean difference 34.2 U/L; p = 0.029), white blood cell count (mean difference 1930/mm(3); p = 0.029); C-reactive protein concentration (mean difference 27.3 mg/L; p = 0.036), and serum lactic acid concentration (mean difference 0.34 mg/L; p = 0.049) were significantly higher in Group 1. Peritoneal contamination also was significantly higher in Group 1 (17.5% vs 0; p = 0.006). CONCLUSIONS Intra-peritoneal irrigation with a gentamicin and clindamycin solution in patients undergoing LSG leads to a reduction in post-operative pain and peritoneal contamination, less alteration of acute-phase reactants, lower blood glucose concentration, a smaller increase in liver enzymes, and a shorter hospital stay.
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Affiliation(s)
- Jaime Ruiz-Tovar
- 1 Department of Surgery, General University Hospital Elche , Alicante, Spain
| | - Carolina Llavero
- 2 Department of Surgical Nursery, Hospital del Sureste , Madrid, Spain
| | - Jose Luis Muñoz
- 3 Department of Anesthesiology, General University Hospital Elche , Alicante, Spain
| | - Lorea Zubiaga
- 1 Department of Surgery, General University Hospital Elche , Alicante, Spain
| | - Maria Diez
- 1 Department of Surgery, General University Hospital Elche , Alicante, Spain
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Fonsêca DV, Salgado PRR, de Carvalho FL, Salvadori MGSS, Penha ARS, Leite FC, Borges CJS, Piuvezam MR, Pordeus LCDM, Sousa DP, Almeida RN. Nerolidol exhibits antinociceptive and anti-inflammatory activity: involvement of the GABAergic system and proinflammatory cytokines. Fundam Clin Pharmacol 2015; 30:14-22. [DOI: 10.1111/fcp.12166] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 09/24/2015] [Accepted: 10/23/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Diogo V. Fonsêca
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Paula R. R. Salgado
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Fabíola L. de Carvalho
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Mirian Graciela S. S. Salvadori
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Antônia Rosângela S. Penha
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Fagner C. Leite
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Immunology; University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Clóvis José S. Borges
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Marcia R. Piuvezam
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Immunology; University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Liana Clébia de Morais Pordeus
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Damião P. Sousa
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
| | - Reinaldo N. Almeida
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB); Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
- Laboratory of Psychopharmacology; Federal University of Paraíba (UFPB); Caixa Postal 5009 CEP 58051-900 João Pessoa PB Brazil
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26
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Ruiz-Tovar J, Llavero C, Gamallo C, Santos J, Calpena R, Arroyo A, Lopez A, Candela F. Effect of Peritoneal Lavage with Clindamycin-Gentamicin Solution during Elective Colorectal Cancer Surgery on the Oncologic Outcome. Surg Infect (Larchmt) 2015; 17:65-70. [PMID: 26381036 DOI: 10.1089/sur.2015.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Antibiotics combined with lavage have demonstrated a reduction in the bacterial contamination and decreases surgical site infection (SSI) rate. SSI leads to an immunocompromised situation, as immunologic defense is focused on controlling the septic focus, leaving unattended the neoplasm. It has been described that SSI may result in a worse oncologic outcome. The aim of this study is to evaluate prospectively the effect of peritoneal lavage with clindamycin and gentamicin on the oncologic outcome of colorectal tumors. METHODS A randomized study of patients with diagnosis of colorectal neoplasms and undergoing elective surgery was performed at our institutions between January and September 2011. Patients were randomly assigned into two groups: Those undergoing an intra-abdominal lavage with normal saline (Group 1) and those undergoing an intra-abdominal lavage with a gentamicin-clindamycin solution (Group 2). Recurrence, global survival, and disease-free survival were investigated. RESULTS One hundred and four patients were analyzed, with 52 in each group. After a minimum follow-up of 42 mo, mean disease-free survival was 37.2 ± 14.2 mo in Group 1 and 25.8 ± 16.3 mo in Group 2 (mean difference 11.4; confidence interval (CI) 95% (2.2-25.1); p = 0.009). Mean global survival was 44.2 ± 11.9 mo in Group 1 and 34.1 ± 14.1 mo in Group 2 (mean difference 10.1; CI 95% (2.2-18);p = 0.016). CONCLUSION The intra-peritoneal lavage with gentamicin and clindamycin increases the disease-free and global survival colorectal tumors.
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Affiliation(s)
- Jaime Ruiz-Tovar
- 1 Department of Surgery, Hospital Rey Juan Carlos , Madrid, Spain
| | - Carolina Llavero
- 2 Department of Surgical Nursery, Hospital Sureste , Madrid, Spain
| | - Carlos Gamallo
- 3 Department of Pathology, Universidad Autonoma de Madrid , Madrid, Spain
| | - Jair Santos
- 4 Department of Surgery, Aintree Hospital , Liverpool, United Kingdom
| | - Rafael Calpena
- 5 Department of Surgery, General University Hospital Elche , Alicante, Spain
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Tanaka K, Matsuo K, Kawaguchi D, Murakami T, Hiroshima Y, Hirano A, Sato S, Endo I, Taguri M, Koda K. Randomized clinical trial of peritoneal lavage for preventing surgical site infection in elective liver surgery. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2015; 22:446-53. [DOI: 10.1002/jhbp.222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 01/05/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Kuniya Tanaka
- Department of Surgery; Teikyo University Chiba Medical Center; Ichihara Chiba Japan
- Department of Gastroenterological Surgery; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
| | - Kenichi Matsuo
- Department of Surgery; Teikyo University Chiba Medical Center; Ichihara Chiba Japan
| | - Daisuke Kawaguchi
- Department of Surgery; Teikyo University Chiba Medical Center; Ichihara Chiba Japan
| | - Takashi Murakami
- Department of Surgery; Teikyo University Chiba Medical Center; Ichihara Chiba Japan
| | - Yukihiko Hiroshima
- Department of Surgery; Teikyo University Chiba Medical Center; Ichihara Chiba Japan
| | - Atsushi Hirano
- Department of Surgery; Teikyo University Chiba Medical Center; Ichihara Chiba Japan
| | - Sho Sato
- Department of Gastroenterological Surgery; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
| | - Itaru Endo
- Department of Gastroenterological Surgery; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
| | - Masataka Taguri
- Department of Biostatistics and Epidemiology; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
| | - Keiji Koda
- Department of Surgery; Teikyo University Chiba Medical Center; Ichihara Chiba Japan
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Abstract
Peritonitis is a progressive disease leading inexorably from local peritoneal irritation to overwhelming sepsis and death unless this trajectory is interrupted by timely and effective therapy. In children peritonitis is usually secondary to intraperitoneal disease, the nature of which varies around the world. In rich countries, appendicitis is the principal cause whilst in poor countries diseases such as typhoid must be considered in the differential diagnosis. Where resources are limited, the clinical diagnosis of peritonitis mandates laparotomy for diagnosis and source control. In regions with unlimited resources, radiological investigation, ultrasound, CT scan or MRI may be used to select patients for non-operative management. For patients with appendicitis, laparoscopic surgery has achieved results comparable to open operation; however, in many centres open operation remains the standard. In complicated peritonitis "damage control surgery" may be appropriate wherein source control is undertaken as an emergency with definitive repair or reconstruction awaiting improvement in the patient's general condition. Awareness of abdominal compartment syndrome is essential. Primary peritonitis in rich countries is seen in high-risk groups, such as steroid-dependent nephrotic syndrome patients, whilst in poor countries the at-risk population is less well defined and the diagnosis is often made at surgery.
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Affiliation(s)
- G P Hadley
- Department of Paediatric Surgery, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Private Bag, Congella 4013, Durban 17039, South Africa.
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Stommel MWJ, Strik C, van Goor H. Response to pathological processes in the peritoneal cavity--sepsis, tumours, adhesions, and ascites. Semin Pediatr Surg 2014; 23:331-5. [PMID: 25459437 DOI: 10.1053/j.sempedsurg.2014.06.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The peritoneum is one of the commonest sites for pathological processes in pediatric surgery. Its response to pathological processes is characterized by an inflammatory reaction with specific pathways depending on the type of injury or peritoneal process involved. This review discusses the current understanding of peritoneal inflammation, adhesion formation, intra-abdominal sepsis, peritoneal metastasis, and ascites and briefly reviews new therapeutic strategies to treat or prevent these pathological entities. Recent studies have improved the understanding of peritoneal responses, resulting in possible new targets for prevention and therapy.
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Affiliation(s)
- Martijn W J Stommel
- Department of Surgery, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
| | - Chema Strik
- Department of Surgery, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Harry van Goor
- Department of Surgery, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
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30
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Cho EJ, Sun B, Doh KO, Wilson EM, Torregrosa-Allen S, Elzey BD, Yeo Y. Intraperitoneal delivery of platinum with in-situ crosslinkable hyaluronic acid gel for local therapy of ovarian cancer. Biomaterials 2014; 37:312-9. [PMID: 25453960 DOI: 10.1016/j.biomaterials.2014.10.039] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 10/02/2014] [Indexed: 11/26/2022]
Abstract
Intraperitoneal (IP) chemotherapy is a promising post-surgical therapy of solid carcinomas confined within the peritoneal cavity, with potential benefits in locoregional and systemic management of residual tumors. In this study, we intended to increase local retention of platinum in the peritoneal cavity over a prolonged period of time using a nanoparticle form of platinum and an in-situ crosslinkable hyaluronic acid gel. Hyaluronic acid was chosen as a carrier due to the biocompatibility and biodegradability. We confirmed a sustained release of platinum from the nanoparticles (PtNPs) and nanoparticle/gel hybrid (PtNP/gel), receptor-mediated endocytosis of PtNPs, and retention of the gel in the peritoneal cavity over 4 weeks: conditions desirable for a prolonged local delivery of platinum. However, PtNPs and PtNP/gel did not show a greater anti-tumor efficacy than CDDP solution administered at the same dose but rather caused a slight increase in tumor burdens at later time points, which suggests a potential involvement of empty carriers and degradation products in the growth of residual tumors. This study alerts that although several materials considered biocompatible and safe are used as drug carriers, they may have unwanted biological effects on the residual targets once the drug is exhausted; therefore, more attention should be paid to the selection of drug carriers.
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Affiliation(s)
- Eun Jung Cho
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Bo Sun
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Kyung-Oh Doh
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA; Department of Physiology, College of Medicine, Yeungnam University, 317-1 Daemyung-dong, Daegu, Republic of Korea
| | - Erin M Wilson
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Sandra Torregrosa-Allen
- Biological Evaluation Shared Resource, Purdue University, 201 S. University Street, West Lafayette, IN 47907, USA
| | - Bennett D Elzey
- Biological Evaluation Shared Resource, Purdue University, 201 S. University Street, West Lafayette, IN 47907, USA; Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA
| | - Yoon Yeo
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA; Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA.
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Kwon JE, Koh SJ, Chun J, Kim JW, Kim BG, Lee KL, Im JP, Kim JS, Jung HC. Effect of gastric acid suppressants and prokinetics on peritoneal dialysis-related peritonitis. World J Gastroenterol 2014; 20:8187-8194. [PMID: 25057226 PMCID: PMC4081691 DOI: 10.3748/wjg.v20.i25.8187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/18/2014] [Accepted: 04/16/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of gastric acid suppressants and prokinetics on peritonitis development in peritoneal dialysis (PD) patients.
METHODS: This was a single-center, retrospective study. The medical records of 398 PD patients were collected from January 2000 to September 2012 and analyzed to compare patients with at least one episode of peritonitis (peritonitis group, group A) to patients who never had peritonitis (no peritonitis group, group B). All peritonitis episodes were analyzed to compare peritonitis caused by enteric organisms and peritonitis caused by non-enteric organisms.
RESULTS: Among the 120 patients who met the inclusion criteria, 61 patients had at least one episode of peritonitis and 59 patients never experienced peritonitis. Twenty-four of 61 patients (39.3%) in group A and 15 of 59 patients (25.4%) in group B used gastric acid suppressants. Only the use of H2-blocker (H2B) was associated with an increased risk of PD-related peritonitis; the use of proton pump inhibitors, other antacids, and prokinetics was not found to be a significant risk factor for PD-related peritonitis. A total of 81 episodes of peritonitis were divided into enteric peritonitis (EP) or non-enteric peritonitis, depending on the causative organism, and gastric acid suppressants and prokinetics did not increase the risk of EP in PD patients.
CONCLUSION: The use of H2B showed a trend for an increased risk of overall PD-related peritonitis, although further studies are required to clarify the effects of drugs on PD-related peritonitis.
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Orlando G, Gianello P, Salvatori M, Stratta RJ, Soker S, Ricordi C, Domínguez-Bendala J. Cell replacement strategies aimed at reconstitution of the β-cell compartment in type 1 diabetes. Diabetes 2014; 63:1433-44. [PMID: 24757193 DOI: 10.2337/db13-1742] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Emerging technologies in regenerative medicine have the potential to restore the β-cell compartment in diabetic patients, thereby overcoming the inadequacies of current treatment strategies and organ supply. Novel approaches include: 1) Encapsulation technology that protects islet transplants from host immune surveillance; 2) stem cell therapies and cellular reprogramming, which seek to regenerate the depleted β-cell compartment; and 3) whole-organ bioengineering, which capitalizes on the innate properties of the pancreas extracellular matrix to drive cellular repopulation. Collaborative efforts across these subfields of regenerative medicine seek to ultimately produce a bioengineered pancreas capable of restoring endocrine function in patients with insulin-dependent diabetes.
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Holt D, Agnello K. Peritoneum. FELINE SOFT TISSUE AND GENERAL SURGERY 2014. [PMCID: PMC7149698 DOI: 10.1016/b978-0-7020-4336-9.00026-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
OBJECTIVE To determine the value of pancreatic stone protein in predicting sepsis-related postoperative complications and death in the ICU. DESIGN A prospective cohort study of postoperative patients admitted to the ICU. Blood samples for analysis were taken within 3 hours from admission to the ICU including pancreatic stone protein, white blood cell counts, C-reactive protein, interleukin-6, and procalcitonin. The Mannheim Peritonitis Index and Acute Physiology and Chronic Health Evaluation II clinical scores were also determined. Univariate and multivariate analyses were performed to determine the diagnostic accuracy and independent predictors of death in the ICU [Clinicaltrials.gov, NCT01465711]. SETTING An adult medical-surgical ICU in a teaching hospital in Germany. PATIENTS Ninety-one consecutive postoperative patients with proven diagnosis of secondary peritonitis admitted to the ICU were included in the study from August 17, 2007, to February 8, 2010. INTERVENTIONS Peripheral vein blood sampling. MEASUREMENTS AND MAIN RESULTS Univariate analysis demonstrated that pancreatic stone protein has the highest diagnostic accuracy for complications and is the best predictor for death in the ICU. Pancreatic stone protein had the highest overall efficacy in predicting death with an odds ratio of 4.0 vs. procalcitonin (odds ratio 3.2), interleukin-6 (odds ratio 2.8), C-reactive protein (odds ratio 1.3), and WBCs (odds ratio 1.4). By multivariate analysis, pancreatic stone protein was the only independent predictor of death. CONCLUSIONS In a population of patients with sepsis-related complications, serum-pancreatic stone protein levels demonstrate a high diagnostic accuracy to discriminate the severity of peritonitis and to predict death in the ICU. This test could be of value in the clinical diagnosis and therapeutic decision making in the ICU.
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Dufrane D, Gianello P. Macro- or microencapsulation of pig islets to cure type 1 diabetes. World J Gastroenterol 2012; 18:6885-93. [PMID: 23322985 PMCID: PMC3531671 DOI: 10.3748/wjg.v18.i47.6885] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Revised: 06/14/2012] [Accepted: 06/28/2012] [Indexed: 02/06/2023] Open
Abstract
Although allogeneic islet transplantation can successfully cure type 1 diabetes, it has limited applicability. For example, organs are in short supply; several human pancreas donors are often needed to treat one diabetic recipient; the intrahepatic site may not be the most appropriate site for islet implantation; and immunosuppressive regimens, which are associated with side effects, are often required to prolong survival of the islet graft. An alternative source of insulin-producing cells would therefore be of major interest. Pigs represent a possible alternative source of beta cells. Grafting of pig islets may appear difficult because of the immunologic species barrier, but pig islets have been shown to function in primates for at least 6 mo with clinically incompatible immunosuppression. Therefore, a bioartificial pancreas made of encapsulated pig islets may resolve issues associated with islet allotransplantation. Although several groups have shown that encapsulated pig islets are functional in small-animal models, less is known about the use of bioartificial pancreases in large-animal models. In this review, we summarize current knowledge of encapsulated pig islets, to determine obstacles to implantation in humans and possible solutions to overcome these obstacles.
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Aslan MK, Boybeyi O, Soyer T, Senyücel MF, Ayva S, Kısa U, Cesur O, Cakmak M. Evaluation of omental inflammatory response with P-/E-selectin levels and histopathologic findings in experimental model. J Pediatr Surg 2012; 47:2050-4. [PMID: 23163997 DOI: 10.1016/j.jpedsurg.2012.06.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 06/06/2012] [Accepted: 06/07/2012] [Indexed: 12/23/2022]
Abstract
AIM The omentum plays a crucial role in abdominal defense mechanism by adhering to sites of inflammation and absorbing bacteria and debris from the peritoneal cavity. An experimental study was conducted to evaluate the inflammatory response of omentum in different abdominal events with omental P-/E-selectin levels and histopathologic findings. MATERIALS AND METHODS Thirty Wistar rats were placed into 5 groups (n = 6), including a control group (CG), sham group (SG), bladder perforation (BP) group, splenic laceration (SL) group, and cecal ligation and puncture (CLP) group. Omental samples were obtained in CG after median laparotomy. In accordance with described models, BP, SL, and CLP were performed in experimental groups. Twenty-four hours after the first laparotomy, localization of the omental pad was noted, and omental samples were obtained for biochemical analysis of levels and histopathologic findings (no. of vessels in sections, polymorphic nuclear leukocytes [PMLs], lymphocytes). The mean P-/E-selectin levels and histopathologic findings of inflammation were compared between groups. RESULTS Although omentum was adhered to the cecum in all subjects after CLP, similar findings were not detected in other groups. P-selectin and E-selectin levels and number of PML were significantly increased in the CLP group when compared with other groups (P < .05). The number of vessels in sections was significantly increased in CLP group when compared with SG and BP groups (P < .05), and the BP group had a decreased number of vessels than CG (P < .05). The number of PML was significantly increased in SG and SL and BP groups with respect to CG (P < .05). CONCLUSION Among different experimental intraabdominal catastrophes, only CLP caused an inflammatory response and increased levels of adhesion molecules in the omentum. These findings suggest that the nature of the inflammation is the main determining factor for the omental function in intraabdominal events.
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Affiliation(s)
- Mustafa Kemal Aslan
- Department of Pediatric Surgery, Kırıkkale University School of Medicine, Kırıkkale 71100, Turkey.
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Owaki M, Oono H, Nakajima N, Ohta G, Okano S, Kakizaki T, Yoshioka K. Scanning Electron Microscopic Study for Pore Formation of the Greater Omentum of Cats. Anat Histol Embryol 2012; 42:151-4. [DOI: 10.1111/j.1439-0264.2012.01177.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 06/01/2012] [Indexed: 11/26/2022]
Affiliation(s)
- M. Owaki
- Inuyama Veterinarian Hospital; 29 Haguro aza Omishita; Inuyama; Aichi; Japan
| | - H. Oono
- Oono Dog and Cat Hospital; 5-2 Kurisaki; Honjo; Saitama; Japan
| | - N. Nakajima
- Shimodate Animal Hospital; 1246-3 Shimonakayama; Chikusei; Ibaraki; Japan
| | - G. Ohta
- Inuyama Veterinarian Hospital; 29 Haguro aza Omishita; Inuyama; Aichi; Japan
| | - S. Okano
- Kitasato University School of Veterinary Medicine; 35-1 Higashi 23ban-cho; Towada; Aomori; Japan
| | - T. Kakizaki
- Kitasato University School of Veterinary Medicine; 35-1 Higashi 23ban-cho; Towada; Aomori; Japan
| | - K. Yoshioka
- Kitasato University School of Veterinary Medicine; 35-1 Higashi 23ban-cho; Towada; Aomori; Japan
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Staged laparoscopic ventral and incisional hernia repair when faced with enterotomy or suspicion of an enterotomy. J Natl Med Assoc 2012; 104:202-10. [PMID: 22774389 DOI: 10.1016/s0027-9684(15)30136-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Enterotomy is a significant complication of laparoscopic ventral or incisional hernia repair (LVHR) and can be devastating if missed. Enterotomy occurs in 2.6% of patients undergoing LVHR and is missed 21.8% of the time. Controversy exists regarding the management of known or potential enterotomies. Approaches for managing recognized enterotomies during hernia repair are usually employed immediately; in a nonstaged fashion; and include laparoscopic enterotomy repair with immediate LVHR, laparotomy for repair of enterotomy with concomitant LVHR, or conversion to laparotomy for both enterotomy and hernia repair. The staged approach for managing recognized or potential enterotomies is less commonly employed and involves laparoscopic repair of enterotomy, admission, and delayed but definitive laparoscopic hernia repair in the same hospitalization. The presence of known or potential enterotomies during LVHR presents a difficult problem and may be a contraindication for immediate placement of prosthetic because of increased risks posed for abdominal infection, reoperation, prosthetic removal, hernia recurrence, and death. The staged approach--with a 2- to 5-day delay--represents a safe solution to this challenging problem. We present 4 cases managed via staged approach due to an enterotomy, risk factors, and suspicion for missed or delayed enterotomies augmented by a review of the literature.
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Pathophysiological changes to the peritoneal membrane during PD-related peritonitis: the role of mesothelial cells. Mediators Inflamm 2012; 2012:484167. [PMID: 22577250 PMCID: PMC3337720 DOI: 10.1155/2012/484167] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 01/18/2012] [Accepted: 01/18/2012] [Indexed: 01/08/2023] Open
Abstract
The success of peritoneal dialysis (PD) is dependent on the structural and functional integrity of the
peritoneal membrane. The mesothelium lines the peritoneal membrane and is the first line of
defense against chemical and/or bacterial insult. Peritonitis remains a major complication of PD and
is a predominant cause of technique failure, morbidity and mortality amongst PD patients. With
appropriate antibiotic treatment, peritonitis resolves without further complications, but in some PD
patients excessive peritoneal inflammatory responses lead to mesothelial cell exfoliation and
thickening of the submesothelium, resulting in peritoneal fibrosis and sclerosis. The detrimental
changes in the peritoneal membrane structure and function correlate with the number and severity
of peritonitis episodes and the need for catheter removal. There is evidence that despite clinical
resolution of peritonitis, increased levels of inflammatory and fibrotic mediators may persist in the
peritoneal cavity, signifying persistent injury to the mesothelial cells. This review will describe the
structural and functional changes that occur in the peritoneal membrane during peritonitis and how
mesothelial cells contribute to these changes and respond to infection. The latter part of the review
discusses the potential of mesothelial cell transplantation and genetic manipulation in the
preservation of the peritoneal membrane.
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Ruiz-Tovar J, Santos J, Arroyo A, Llavero C, Armañanzas L, López-Delgado A, Frangi A, Alcaide MJ, Candela F, Calpena R. Effect of peritoneal lavage with clindamycin-gentamicin solution on infections after elective colorectal cancer surgery. J Am Coll Surg 2012; 214:202-7. [PMID: 22265220 DOI: 10.1016/j.jamcollsurg.2011.10.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Revised: 10/25/2011] [Accepted: 10/31/2011] [Indexed: 11/26/2022]
Abstract
BACKGROUND Colorectal surgery may lead to infections because despite meticulous aseptic measures, extravasation of microorganisms from the colon lumen is unavoidable. STUDY DESIGN A prospective, randomized study was performed between January 2010 and December 2010. Patient inclusion criteria were a diagnosis of colorectal neoplasms and plans to undergo an elective curative operation. Patients were divided into 2 groups: Group 1 (intra-abdominal irrigation with normal saline) and Group 2 (intraperitoneal irrigation with a solution of 240 mg gentamicin and 600 mg clindamycin). The occurrence of wound infections and intra-abdominal abscesses were investigated. After the anastomosis, a microbiologic sample of the peritoneal surface was obtained (sample 1). A second sample was collected after irrigation with normal saline (sample 2). Finally, the peritoneal cavity was irrigated with a gentamicin-clindamycin solution and a third sample was obtained (sample 3). RESULTS There were 103 patients analyzed: 51 in Group 1 and 52 in Group 2. There were no significant differences between the groups in age, sex, comorbidities, or type of colorectal surgery performed. Wound infection rates were 14% in Group 1 and 4% in Group 2 (p = 0.009; odds ratio [OR] 4.94; 95% CI 1.27 to 19.19). Intra-abdominal abscess rates were 6% in Group 1 and 0% in Group 2 (p = 0.014; OR 2.14; 95% CI 1.13 to 3.57). The culture of sample 1 was positive in 68% of the cases, sample 2 was positive in 59%, and sample 3 in 4%. CONCLUSIONS Antibiotic lavage of the peritoneum is associated with a lower incidence of intra-abdominal abscesses and wound infections.
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Affiliation(s)
- Jaime Ruiz-Tovar
- Department of Surgery, General University Hospital Elche, Alicante, Spain.
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Bajaj G, Van Alstine WG, Yeo Y. Zwitterionic chitosan derivative, a new biocompatible pharmaceutical excipient, prevents endotoxin-mediated cytokine release. PLoS One 2012; 7:e30899. [PMID: 22292072 PMCID: PMC3265529 DOI: 10.1371/journal.pone.0030899] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 12/23/2011] [Indexed: 12/18/2022] Open
Abstract
Chitosan is a cationic polymer of natural origin and has been widely explored as a pharmaceutical excipient for a broad range of biomedical applications. While generally considered safe and biocompatible, chitosan has the ability to induce inflammatory reactions, which varies with the physical and chemical properties. We hypothesized that the previously reported zwitterionic chitosan (ZWC) derivative had relatively low pro-inflammatory potential because of the aqueous solubility and reduced amine content. To test this, we compared various chitosans with different aqueous solubilities or primary amine contents with respect to the intraperitoneal (i.p.) biocompatibility and the propensity to induce pro-inflammatory cytokine production from macrophages. ZWC was relatively well tolerated in ICR mice after i.p. administration and had no pro-inflammatory effect on naïve macrophages. Comparison with other chitosans indicates that these properties are mainly due to the aqueous solubility at neutral pH and relatively low molecular weight of ZWC. Interestingly, ZWC had a unique ability to suppress cytokine/chemokine production in macrophages challenged with lipopolysaccharide (LPS). This effect is likely due to the strong affinity of ZWC to LPS, which inactivates the pro-inflammatory function of LPS, and appears to be related to the reduced amine content. Our finding warrants further investigation of ZWC as a functional biomaterial.
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Affiliation(s)
- Gaurav Bajaj
- Department of Industrial and Physical Pharmacy, Purdue University, West Lafayette, Indiana, United States of America
| | - William G. Van Alstine
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, United States of America
| | - Yoon Yeo
- Department of Industrial and Physical Pharmacy, Purdue University, West Lafayette, Indiana, United States of America
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, United States of America
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Bajaj G, Kim MR, Mohammed SI, Yeo Y. Hyaluronic acid-based hydrogel for regional delivery of paclitaxel to intraperitoneal tumors. J Control Release 2011; 158:386-92. [PMID: 22178261 DOI: 10.1016/j.jconrel.2011.12.001] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 11/25/2011] [Accepted: 12/04/2011] [Indexed: 01/29/2023]
Abstract
Intraperitoneal (IP) chemotherapy is an effective way of treating local and regional malignancies confined in the peritoneal cavity such as ovarian cancer. However, a persistent major challenge in IP chemotherapy is the need to provide effective drug concentrations in the peritoneal cavity for an extended period of time. We hypothesized that hyaluronic acid (HA)-based in-situ crosslinkable hydrogel would serve as a carrier of paclitaxel (PTX) particles to improve their IP retention and therapeutic effects. In-vitro gel degradation and release kinetics studies demonstrated that HA gels could entrap microparticulate PTX (>100 μm) and release the drug over 10 days, gradually degraded by hyaluronidase, but had limited effect on retention of Taxol, a 14-nm micelle form of PTX. When administered IP to tumor-bearing nude mice, PTX was best retained in the peritoneal cavity as PTX-gel (microparticulate PTX entrapped in the HA gel), whereas Taxol-gel and other Taxol-based formulations left negligible amount of PTX in the cavity after 14 days. Despite the increase in IP retention of PTX, PTX-gel did not further decrease the tumor burdens than Taxol-based formulations, presumably due to the limited dissolution of PTX. This result indicates that spatial availability of a drug does not necessarily translate to the enhanced anti-tumor effect unless it is accompanied by the temporal availability.
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Affiliation(s)
- Gaurav Bajaj
- College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
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Pinheiro BG, Silva ASB, Souza GEP, Figueiredo JG, Cunha FQ, Lahlou S, da Silva JKR, Maia JGS, Sousa PJC. Chemical composition, antinociceptive and anti-inflammatory effects in rodents of the essential oil of Peperomia serpens (Sw.) Loud. JOURNAL OF ETHNOPHARMACOLOGY 2011; 138:479-486. [PMID: 21971207 DOI: 10.1016/j.jep.2011.09.037] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 07/29/2011] [Accepted: 09/20/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Peperomia serpens (Piperaceae), popularly known as "carrapatinho", is an epiphyte herbaceous liana grown wild on different host trees in the Amazon rainforest. Its leaves are largely used in Brazilian folk medicine to treat inflammation, pain and asthma. AIM OF THE STUDY This study investigated the effects of essential oil of Peperomia serpens (EOPs) in standard rodent models of pain and inflammation. MATERIALS AND METHODS The antinociceptive activity was evaluated using chemical (acetic acid and formalin) and thermal (hot plate) models of nociception in mice whereas the anti-inflammatory activity was evaluated by carrageenan- and dextran-induced paw edema tests in rats croton oil-induced ear edema, as well as cell migration, rolling and adhesion induced by carrageenan in mice. Additionally, phytochemical analysis of the EOPs has been also performed. RESULTS Chemical composition of the EOPs was analyzed by gas chromatography and mass spectrometry (GC/MS). Twenty-four compounds, representing 89.6% of total oil, were identified. (E)-Nerolidol (38.0%), ledol (27.1%), α-humulene (11.5%), (E)-caryophyllene (4.0%) and α-eudesmol (2.7%) were found to be the major constituents of the oil. Oral pretreatment with EOPs (62.5-500 mg/kg) significantly reduced the writhing number evoked by acetic acid injection, with an ED(50) value of 188.8 mg/kg that was used thereafter in all tests. EOPs had no significant effect on hot plate test but reduced the licking time in both phases of the formalin test, an effect that was not significantly altered by naloxone (0.4 mg/kg, s.c.). EOPs inhibited the edema formation induced by carrageenan and dextran in rats. In mice, EOPs inhibited the edema formation by croton oil as well as the leukocyte and neutrophil migration, the rolling and the adhesion of leukocytes. CONCLUSIONS These data show for the first time that EOPs has a significant and peripheral antinociceptive effect that seems unrelated to interaction with the opioid system. EOPs also displays a significant anti-inflammatory effect in acute inflammation models. This effect seems to be related to components which inhibit the production of several inflammatory mediators. These results support the widespread use of Peperomia serpens in popular medicine to treat inflammation and pain.
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Affiliation(s)
- B G Pinheiro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, 66075-900 Belém, Pará, Brazil
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Kinetics of proinflammatory cytokines after intraperitoneal injection of tribromoethanol and a tribromoethanol/xylazine combination in ICR mice. Lab Anim Res 2011; 27:197-203. [PMID: 21998608 PMCID: PMC3188726 DOI: 10.5625/lar.2011.27.3.197] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Revised: 08/24/2011] [Accepted: 08/27/2011] [Indexed: 11/21/2022] Open
Abstract
Tribromoethanol (2,2,2-tribromoethanol, TBE) is a popular injectable anesthetic agent used in mice in Korea. Our goal was to assess the risks associated with side effects (lesions) in the abdominal cavity, especially at high doses. To understand the underlying pathophysiological changes, we examined levels of cytokines through ELISA of abdominal lavage fluid and spleen collected from mice treated with low and high-dose TBE. ICR mice were anesthetized using one of the following protocols: a combination of TBE 200 mg/kg (1.25%) and xylazine 10 mg/kg; TBE 400 mg/kg (1.25%); and TBE 400 mg/kg (2.5%). Administration of high-dose TBE (400 mg/kg) increased the interleukin-1β and interleukin-6 levels in the peritoneal cavity over the short term (<1 day) compared with sham controls and low-dose TBE (200 mg/kg) groups. Cytokine expression in the low-dose TBE group was similar to the control group, whereas in the high-dose TBE group cytokine levels were higher in abdominal lavage fluid and spleen over the long term (10 days post-injection). We conclude that a combination of TBE 200 mg/kg (1.25%) and xylazine (10 mg/kg) is a safe and effective anesthetic for use in animals.
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Lopez N, Kobayashi L, Coimbra R. A Comprehensive review of abdominal infections. World J Emerg Surg 2011; 6:7. [PMID: 21345232 PMCID: PMC3049134 DOI: 10.1186/1749-7922-6-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Accepted: 02/23/2011] [Indexed: 12/11/2022] Open
Affiliation(s)
- Nicole Lopez
- Assistant Professor of Surgery, University of California, San Diego, 200 W, Arbor Dr, #8896, San Diego, CA 92103-8896, USA.
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Torab FC, Abu-Zidan FM, Al-Salam S, Padmanabahn KR, Berger D, Branicki FJ. Peritoneal resorption capacity for lipopolysaccharide and interleukin-6 in acute zymosan-induced chemical peritonitis. ACTA ACUST UNITED AC 2011; 46:127-32. [PMID: 21304233 DOI: 10.1159/000323415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2009] [Accepted: 12/06/2010] [Indexed: 11/19/2022]
Abstract
AIM To evaluate peritoneal resorption capacity for lipopolysaccharide (LPS) and interleukin-6 (IL-6) in a model of chemical peritonitis. METHODS Zymosan peritonitis was induced in anesthetized rats. LPS was injected intraperitoneally to different groups at 4 h (n = 10), 8 h (n = 9), 12 h (n = 9), and 24 h (n = 9) after peritonitis and to a control group (n = 8). Similarly, IL-6 was injected intraperitoneally to different groups at 4 h (n = 9), 8 h (n = 10), 12 h (n = 10), and 24 h (n = 10) after peritonitis, and to a control group (n = 10). Plasma levels of LPS or IL-6 were measured immediately after intraperitoneal injections of LPS or IL-6, respectively, and at 5, 15, 30, 45, and 60 min later. RESULTS There was no change over time in plasma LPS levels in the groups receiving LPS intraperitoneally (p = 0.4). There was highly significant change over time in the IL-6 level in the studied time periods in the groups receiving IL-6 intraperitoneally (p < 0.0001). There was an increase in the plasma IL-6 level when sampled at 4 h after peritonitis. CONCLUSION There was a reduction of resorption capacity of inflamed peritoneum for inflammatory mediators in acute chemical peritonitis.
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Affiliation(s)
- F C Torab
- Department of Surgery, Faculty of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates
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Qadan M, Dajani D, Dickinson A, Polk HC. Meta-analysis of the effect of peritoneal lavage on survival in experimental peritonitis. Br J Surg 2010; 97:151-9. [DOI: 10.1002/bjs.6906] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Background
Morbidity and mortality associated with bacterial peritonitis remain a challenge for contemporary surgery. Despite great surgical improvements, death rates have not improved. A secondary debate concerns the volume and nature of peritoneal lavage or washout—what volume, what carrier and what, if any, antibiotic or antiseptic?
Methods
A literature search of experimental studies assessing the effect of peritoneal lavage following peritonitis was conducted using Medline, EMBASE and Cochrane databases. Twenty-three trials met predetermined inclusion criteria. Data were pooled and relative risks calculated.
Results
In an experimental peritonitis setting a mortality rate of 48·9 per cent (238 of 487) was found for saline lavage compared with 16·4 per cent (106 of 647) for antibiotic lavage (absolute risk reduction (ARR) 32·5 (95 per cent confidence interval (c.i.) 27·1 to 37·7) per cent; (P < 0·001). An ARR of 25·0 (95 per cent c.i. 17·9 to 31·7) per cent P < 0·001) was found for the use of saline compared with no lavage at all. The survival benefit persisted regardless of systemic antibiotic therapy. Antiseptic lavage was associated with a very high mortality rate (75·0 per cent).
Conclusion
Pooled data from studies in experimental peritonitis demonstrated a significant reduction in mortality with antibiotic lavage.
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Affiliation(s)
- M Qadan
- Price Institute of Surgical Research, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - D Dajani
- Price Institute of Surgical Research, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - A Dickinson
- Price Institute of Surgical Research, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - H C Polk
- Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky, USA
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Evaluation on Efficacy and Safety of Tribromoethanol and Tribromoethanol plus α 2-Adrenergic Agonists in Different Mouse Strains. Lab Anim Res 2010. [DOI: 10.5625/lar.2010.26.3.241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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49
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Kim KE, Koh YJ, Jeon BH, Jang C, Han J, Kataru RP, Schwendener RA, Kim JM, Koh GY. Role of CD11b+ macrophages in intraperitoneal lipopolysaccharide-induced aberrant lymphangiogenesis and lymphatic function in the diaphragm. THE AMERICAN JOURNAL OF PATHOLOGY 2009; 175:1733-45. [PMID: 19762711 DOI: 10.2353/ajpath.2009.090133] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Lymphatic vessels in the diaphragm are essential for draining peritoneal fluid, but little is known about their pathological changes during inflammation. Here we characterized diaphragmatic lymphatic vessels in a peritonitis model generated by daily i.p. administration of lipopolysaccharide (LPS) in mice. Intraperitoneal LPS increased lymphatic density, branching, sprouts, connections, and network formation in the diaphragm in time- and dose-dependent manners. These changes were reversible on discontinuation of LPS administration. The LPS-induced lymphatic density and remodeling occur mainly through proliferation of lymphatic endothelial cells. CD11b+ macrophages were massively accumulated and closely associated with the lymphatic vessels changed by i.p. LPS. Both RT-PCR assays and experiments with vascular endothelial growth factor-C/D blockade and macrophage-depletion indicated that the CD11b+ macrophage-derived lymphangiogenic factors vascular endothelial growth factor-C/D could be major mediators of LPS-induced lymphangiogenesis and lymphatic remodeling through paracrine activity. Functional assays with India ink and fluorescein isothiocyanate-microspheres indicated that impaired peritoneal fluid drainage in diaphragm of LPS-induced peritonitis mice was due to inflammatory fibrosis and massive attachment of CD11b+ macrophages on the peritoneal side of the diaphragmatic lymphatic vessels. These findings reveal that CD11b+ macrophages play an important role in i.p. LPS-induced aberrant lymphangiogenesis and lymphatic dysfunction in the diaphragm.
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Affiliation(s)
- Kyung Eun Kim
- National Research Laboratory of Vascular Biology and Department of Biological Sciences and Graduate School of Nanoscience and Technology (World Class University), Korea
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Solomkin JS, Mazuski J. Intra-abdominal Sepsis: Newer Interventional and Antimicrobial Therapies. Infect Dis Clin North Am 2009; 23:593-608. [DOI: 10.1016/j.idc.2009.04.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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