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peritoneals adhesion

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https://www.readbyqxmd.com/read/28058557/intraperitoneal-administration-of-plasma-activated-medium-proposal-of-a-novel-treatment-option-for-peritoneal-metastasis-from-gastric-cancer
#1
Shigeomi Takeda, Suguru Yamada, Norifumi Hattori, Kae Nakamura, Hiromasa Tanaka, Hiroaki Kajiyama, Mitsuro Kanda, Daisuke Kobayashi, Chie Tanaka, Tsutomu Fujii, Michitaka Fujiwara, Masaaki Mizuno, Masaru Hori, Yasuhiro Kodera
BACKGROUND: The administration of fluid irradiated with non-equilibrium atmospheric pressure plasma (NEAPP) has attracted much interest as a novel therapeutic method for cancer. The authors previously reported on the efficacy of plasma-activated medium (PAM) for treating cancer cell lines through the induction of apoptosis. In this study, the therapeutic effect of PAM was evaluated in vivo using a peritoneal metastasis mouse model. METHODS: Two gastric cancer cell lines were used in proliferation assays performed to optimize the production of PAM by changing the distance between the plasma source and the medium surface and by altering the volume of irradiated medium...
January 5, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28056854/establishing-a-xenograft-mouse-model-of-peritoneal-dissemination-of-gastric-cancer-with-organ-invasion-and-fibrosis
#2
Mitsuyoshi Okazaki, Sachio Fushida, Shinichi Harada, Tomoya Tsukada, Jun Kinoshita, Katsunobu Oyama, Tomoharu Miyashita, Itasu Ninomiya, Tetsuo Ohta
BACKGROUND: The clinical prognosis of gastric cancer with peritoneal dissemination is poor because of its chemoresistance and rich fibrosis. While several gastric cancer cell lines have been used to establish models of peritoneal dissemination by intraperitoneal injection, most peritoneal tumors that form adopt a medullary pattern in microscopic appearance. This histological finding for the model differs from that in the clinical situation. This study was performed to demonstrate the contribution of human peritoneal mesothelial cells (HPMCs) to fibrotic tumor formation and to establish a new xenograft model with high potential for peritoneal dissemination with organ invasion and extensive fibrosis...
January 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28040120/a-mixture-of-st-john-s-wort-and-sea-buckthorn-oils-regresses-endometriotic-implants-and-affects-the-levels-of-inflammatory-mediators-in-peritoneal-fluid-of-the-rat-a-surgically-induced-endometriosis-model
#3
Mert İlhan, İpek Süntar, Mürşide Ayşe Demirel, Erdem Yeşilada, Hikmet Keleş, Esra Küpeli Akkol
OBJECTIVE: Sea buckthorn (Hippophae rhamnoides L.) and St. John's wort (Hypericum perforatum L.) are used as an emmenagog and for the treatment of other gynecological disorders including uterus inflammation and endometriosis. The aim of the present study is to investigate the potential of a mixture of sea buckthorn and St. John's wort oils (HrHp oil) in the treatment of endometriosis. MATERIALS AND METHODS: The activity was assessed in surgically induced endometriosis in rats...
December 2016: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28028973/the-impact-of-0-9-nacl-on-mesothelial-cells-after-intraperitoneal-lavage-during-surgical-procedures
#4
Jarosław Cwaliński, Andrzej Bręborowicz, Alicja Połubińska
BACKGROUND: Normal saline gained wide popularity in abdominal surgery as a basic compound used in intraoperative drainage of the peritoneal cavity. However, recent studies have revealed that saline solution is not quite biocompatible with the intraperitoneal enviroment and may promote peritoneal adhesions. OBJECTIVES: The aim of the study was to evaluate the function and viability of human mesothelial cells cultured in vitro in 0.9% NaCl solution from intraperitoneal lavage carried out during laparoscopic cholecytectomies...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28028380/small-bowel-obstruction-secondary-to-adhesions-after-open-or-laparoscopic-colorectal-surgery
#5
Sebastian Smolarek, Mostafa Shalaby, Giulio Paolo Angelucci, Giulia Missori, Ilaria Capuano, Luana Franceschilli, Silvia Quaresima, Nicola Di Lorenzo, Pierpaolo Sileri
BACKGROUND AND OBJECTIVES: Small-bowel obstruction (SBO) is a common surgical emergency that occurs in 9% of patients after abdominal surgery. Up to 73% are caused by peritoneal adhesions. The primary purpose of this study was to compare the rate of SBOs between patients who underwent laparoscopic (LPS) and those who had open (OPS) colorectal surgery. The secondary reasons were to evaluate the rate of adhesive SBO in a cohort of patients who underwent a range of colorectal resections and to assess risk factors for the development of SBO...
October 2016: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/28003439/prolonged-exposure-to-volatile-anesthetic-isoflurane-worsens-the-outcome-of-polymicrobial-abdominal-sepsis
#6
Sophia Koutsogiannaki, Matthew M Schaefers, Toshiaki Okuno, Mai Ohba, Takehiko Yokomizo, Gregory P Priebe, James A DiNardo, Soriano G Sulpicio, Koichi Yuki
Sepsis continues to result in high morbidity and mortality. General anesthesia is often administered to septic patients, but the impacts of general anesthesia on host defense are not well understood. General anesthesia can be given by volatile and intravenous anesthetics. Our previous in vitro study showed that volatile anesthetic isoflurane directly inhibits leukocyte function-associated antigen-1 (LFA-1) and macrophage-1 antigen (Mac-1), critical adhesion molecules on leukocytes. Thus, the role of isoflurane exposure on in vivo LFA-1 and Mac-1 function was examined using polymicrobial abdominal sepsis model in mice...
December 20, 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/27998009/endometriosis-associated-infertility-aspects-of-pathophysiological-mechanisms-and-treatment-options
#7
Tom Tanbo, Peter Fedorcsak
Endometriosis is a common condition in women of reproductive age. In addition to pain, endometriosis may also reduce fertility. The causes of infertility in women with endometriosis may range from anatomical distortions due to adhesions and fibrosis to endocrine abnormalities and immunological disturbances. In some cases, the various pathophysiological derangements seem to interact by mechanisms so far not fully understood. Whether surgery should be offered as a treatment option in endometriosis-associated infertility has become controversial, partly due to its modest or undocumented effect...
December 20, 2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/27995493/expression-of-cd68-positive-macrophages-in-the-use-of-different-barrier-materials-to-prevent-peritoneal-adhesions-an-animal-study
#8
Christoph Brochhausen, Volker H Schmitt, Andreas Mamilos, Christine Schmitt, Constanze N E Planck, Taufiek K Rajab, Helmut Hierlemann, C James Kirkpatrick
In preventing postoperative adhesion formation the optimal barrier material has still not been found. It is therefore imperative to assess the biocompatibility of potential barrier devices. Macrophages play a decisive role in the regulation of wound healing, tissue regeneration and foreign body reaction. Since the number of CD68-positive macrophages represents an important parameter within biomaterial testing, in the present study it was analysed whether a correlation exists between the total number of CD68-positive macrophages and the extent of fibrosis or inflammation in peritoneal adhesion prevention using biomaterials...
January 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/27994499/adhesion-prevention-efficacy-of-composite-meshes-parietex-%C3%A2-proceed-%C3%A2-and-4dryfield-%C3%A2-ph-covered-polypropylene-meshes-in-an-ipom-rat-model
#9
Markus Winny, Lavinia Maegel, Leonie Grethe, Torsten Lippmann, Danny Jonigk, Harald Schrem, Alexander Kaltenborn, Juergen Klempnauer, Daniel Poehnert
Background: Adhesions to intraperitoneally implanted meshes (IPOM) are a common problem following hernia surgery and may cause severe complications. Recently, we showed that missing peritoneal coverage of the intestine is a decisive factor for adhesion formation and 4DryField(®) PH (4DF) gel significantly prevents intestine-to-mesh adhesions even with use of uncoated Ultrapro(®) polypropylene mesh (UPM). The present study investigates adhesion prevention capability of coated Parietex(®) mesh (PTM) and Proceed(®) mesh (PCM) in comparison to 4DF treated UPM...
2016: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/27993220/intestinal-alkaline-phosphatase-decreases-intraperitoneal-adhesion-formation
#10
Sanjiv K Hyoju, Sara Morrison, Sarah Gul, Mohammad Hadi Gharedaghi, Mohamed Mussa, Mehran Najibi, Konstantinos P Economopoulos, Sulaiman R Hamarneh, Richard A Hodin
BACKGROUND: Damage to the peritoneum initiates an inflammatory response leading to the formation of adhesions, which subsequently cause significant morbidity in some patients. Intestinal alkaline phosphatase (IAP) is a gut enzyme capable of detoxifying various inflammatory mediators such as lipopolysaccharide, lipoteichoic acid, CpG DNA, and adenosine triphosphate. In this study, we aimed to examine the anti-inflammatory effects of IAP on postoperative adhesions in mice. METHODS: C57BL/6 mice were subjected to a midline laparotomy and then six musculoperitoneal buttons (MPBs) were created by pinching and ligating the peritoneum and underlying muscle...
February 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27993219/behavior-of-a-new-long-chain-cyanoacrylate-tissue-adhesive-used-for-mesh-fixation-in-hernia-repair
#11
Juan M Bellón, Mar Fernández-Gutiérrez, Marta Rodríguez, Paloma Pérez-López, Bárbara Pérez-Köhler, Andree Kühnhardt, Gemma Pascual, Julio San Román
BACKGROUND: Synthetic tissue adhesives (TA) are sometimes used in hernia repair surgery. This study compares the use of a new, noncommercial, long-chain cyanoacrylate (n-octyl) TA and Ifabond for mesh fixation. MATERIALS AND METHODS: In two implant models in the rabbit, expanded polytetrafluorethylene meshes were fixed to the parietal peritoneum using a TA or tacks (intraperitoneal model), or polypropylene meshes used to repair partial abdominal wall defects were fixed with a TA or sutures (extraperitoneal model)...
February 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27990411/identification-of-human-cathelicidin-peptide-ll-37-as-a-ligand-for-macrophage-integrin-%C3%AE-m%C3%AE-2-mac-1-cd11b-cd18-that-promotes-phagocytosis-by-opsonizing-bacteria
#12
Valeryi K Lishko, Benjamin Moreno, Nataly P Podolnikova, Tatiana P Ugarova
LL-37, a cationic antimicrobial peptide, has numerous immune-modulating effects. However, the identity of a receptor(s) mediating the responses in immune cells remains uncertain. We have recently demonstrated that LL-37 interacts with the αMI-domain of integrin αMβ2 (Mac-1), a major receptor on the surface of myeloid cells, and induces a migratory response in Mac-1-expressing monocyte/macrophages as well as activation of Mac-1 on neutrophils. Here, we show that LL-37 and its C-terminal derivative supported strong adhesion of various Mac-1-expressing cells, including HEK293 cells stably transfected with Mac-1, human U937 monocytic cells and murine IC-21 macrophages...
July 7, 2016: Research and Reports in Biochemistry
https://www.readbyqxmd.com/read/27960405/improving-antiadhesion-effect-of-thermosensitive-hydrogel-with-sustained-release-of-tissue-type-plasminogen-activator-in-a-rat-repeated-injury-model
#13
Tao He, Chang Zou, Linjiang Song, Ning Wang, Suleixin Yang, Yan Zeng, Qinjie Wu, Wenli Zhang, Yingtai Chen, Changyang Gong
Intraperitoneal adhesion occurs frequently after pelvic and abdominal surgery, which plays an enormous burden on patients. Various drugs and barrier agents were studied and used to prevent adhesions, but few of them were satisfactory. A thermosensitive hydrogel was developed in our previous work and was effective in preventing adhesions. But in our preliminary experiment, it showed limited activity in a more rigorous rat repeated-injury adhesion model, which was much closer to clinical. In this study, tissue-type plasminogen activator (tPA) loaded thermosensitive hydrogel (tPA-hydrogel) was prepared, which combined barrier functions with sustained release of antiadhesion drug...
December 14, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27941884/emergent-role-of-the-fractalkine-axis-in-dissemination-of-peritoneal-metastasis-from-epithelial-ovarian-carcinoma
#14
H Gurler Main, J Xie, G G Muralidhar, O Elfituri, H Xu, A A Kajdacsy-Balla, M V Barbolina
Epithelial ovarian carcinoma is the most common cause of death from gynecologic cancers largely due to advanced, relapsed and chemotherapy-resistant peritoneal metastasis, which is refractory to the currently used treatment approaches. Mechanisms supporting advanced and relapsed peritoneal metastasis are largely unknown, precluding development of more effective targeted therapies. In this study, we investigated the function of a potentially targetable fractalkine axis in the formation and the development of advanced and relapsed peritoneal metastasis and its impact on patients' outcomes...
December 12, 2016: Oncogene
https://www.readbyqxmd.com/read/27938529/adhesions-small-bowel-obstruction-in-emergency-setting-conservative-or-operative-treatment
#15
M Assenza, I De Gruttola, D Rossi, S Castaldi, F Falaschi, G Giuliano
Adhesions small bowel obstructions (aSBO) are among the leading causes of emergency operative intervention. About the 80% of aSBO cases resolve without a surgical treatment. It's important to identify which patients could undergo a conservative treatment to prevent an useless surgery The aim of this study is to determine findings that can indicate whether patients with aSBO should undergo a conservative or a surgical treatment. 313 patients with diagnosis of submission of aSBO were restudied. Patients were divided into two groups based on the different type of treatment received, 225 patients who underwent surgical treatment within 24 hours after admission, 88 patients which underwent conservative treatment successfully...
July 2016: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/27932866/effect-of-peritoneal-dialysis-fluid-containing-osmo-metabolic-agents-on-human-endothelial-cells
#16
Mario Bonomini, Sara Di Silvestre, Pamela Di Tomo, Natalia Di Pietro, Domitilla Mandatori, Lorenzo Di Liberato, Vittorio Sirolli, Francesco Chiarelli, Cesare Indiveri, Assunta Pandolfi, Arduino Arduini
BACKGROUND: The use of glucose as the only osmotic agent in peritoneal dialysis (PD) solutions (PDSs) is believed to exert local (peritoneal) and systemic detrimental actions, particularly in diabetic PD patients. To improve peritoneal biocompatibility, we have developed more biocompatible PDSs containing xylitol and carnitine along with significantly less amounts of glucose and have tested them in cultured Human Vein Endothelial Cells (HUVECs) obtained from the umbilical cords of healthy (C) and gestational diabetic (GD) mothers...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27928685/laparoscopic-deloyers-procedure-for-tension-free-anastomosis-after-extended-left-colectomy-technique-and-results
#17
A Sciuto, C Grifasi, F Pirozzi, P Leon, R E M Pirozzi, F Corcione
BACKGROUND: The Deloyers procedure, which includes inversion of the right colon around the axis of the ileocolic vessels, can be used to achieve a well vascularized, tension-free colorectal anastomosis after extended left colectomy. The aim of this study is to report our technique and outcome in a series of ten consecutive patients who underwent right colonic transposition by laparoscopic approach. METHODS: Charts were retrospectively reviewed to analyze postoperative outcome and bowel function...
December 2016: Techniques in Coloproctology
https://www.readbyqxmd.com/read/27898351/a-case-report-of-small-bowel-obstruction-secondary-to-congenital-peritoneal-band-in-adult
#18
Yahmadi Abdelwahed, Rebii Saber, Ben Ismail Imen, Zenaidi Hakim, Zoghlami Ayoub
INTRODUCTION: Small bowel obstruction (SBO) is common in adult surgical procedures, mainly due to postoperative adhesions. Acute SBO in adults without history of abdominal surgery, trauma or clinical hernia is less common and has various etiologies. Congenital band is an extremely rare cause. PRESENTATION OF CASE: A 56-year-old man was admitted to our hospital with a two-day history of abdominal pain and bilious vomiting. He had no history of abdominal surgery or any other medical problems...
November 18, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27896150/early-reoperations-after-primary-repair-of-jejunoileal-atresia-in-newborns
#19
Fanny Yeung, Yuk Him Tam, Yuen Shan Wong, Siu Yan Tsui, Hei Yi Wong, Kristine Kit Yi Pang, Christopher H Houben, Jennifer Wai Cheung Mou, Kin Wai Chan, Kim Hung Lee
Aim: To review nine-year experience in managing jejuno-ileal atresia (JIA) by primary resection and anastomosis and identify factors associated with reoperations. Methods: From April 2006 to May 2015, all consecutive neonates who underwent bowel resection and primary anastomosis for JIA were analyzed retrospectively. Patients with temporary enterostomy were excluded. Patient demographics, types of atresia, surgical techniques, need for reoperations, and long-term outcomes were investigated. Results: A total of forty-three neonates were included, in which nineteen (44...
October 2016: Journal of Neonatal Surgery
https://www.readbyqxmd.com/read/27890350/the-histophysiology-and-pathophysiology-of-the-peritoneum
#20
REVIEW
J O A M van Baal, K K Van de Vijver, R Nieuwland, C J F van Noorden, W J van Driel, A Sturk, G G Kenter, L G Rikkert, C A R Lok
The peritoneum is an extensive serous organ with both epithelial and mesenchymal features and a variety of functions. Diseases such as inflammatory peritonitis and peritoneal carcinomatosis can induce disturbance of the complex physiological functions. To understand the peritoneal response in disease, normal embryonic development, anatomy in healthy conditions and physiology of the peritoneum have to be understood. This review aims to summarize and discuss the literature on these basic peritoneal characteristics...
November 13, 2016: Tissue & Cell
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