Functional Abdominal Pain Syndrome in Morbidly Obese Patients Following Laparoscopic Gastric Bypass Surgery

Background: Roux-en-Y gastric bypass surgery (RYGBP) is one of the most common bariatric surgeries, which is being performed using various techniques like gastrojejunostomy by hand swen, linear or circular stapler. Abdominal pain is a common complaint following laparoscopic gastric bypass procedure (LGBP), which has different aetiologies, such as overeating, adhesion, internal herniation, bile reflux and many more. In this study LGBP was performed in an ante-colic ante-gastric pattern in a double loop manner and the prevalence and distribution of pain in morbidly obese patients undergoing LGBP was assessed. Objectives: The aim of this study was to analyze the distribution and frequency of post LGBP pain in morbidly obese patients. Patients and Methods: This study was performed on 190 morbidly obese patients referred to Hazrat Rasoul Hospital in Tehran. After LGBP, pain was measured in the following intervals: 24 hours, one week and one month after the operation. Before the operation onset, 2 mg Keflin and 5000 IU subcutaneous heparin were administered as prophylaxis. LGBP was performed using five ports including: one 11 mm port was placed 15-20 cm far from the xiphoid, one 12-mm port in mid-clavicular line at the level of camera port, one 5-mm port in subcostal area in ante-axillary region in the left, another 5-mm port in the right mid-clavicular area and a 5-mm port in sub-xyphoid. All operations were done by the same team. Staple was used for all anastomoses and hand sewn technique to close the staple insertion site. The mesenteric defect was left open and no effort was made to repair it. Results: The results of this study showed that 99.94 % of the patients had complains of pain in the first 24 hours of post operation, about 60% after one week and 29.5 % still had pain after one month. In addition, left upper quadrant (LUQ) was found to be the most prevalent site for the pain in 53.7% of the patients in the first 24 hours, 59.6% after one week and 16.8% after one month (except for obscure pain) with a significance of < 0.05. Conclusions: In this study, the authors analyzed the location and disturbance level of pain after LGBP, which could serve as a cornerstone for further researches. The authors suggest that long-term follow-up (for more than a year after operation) should be considered in future studies and also the relationship between the drainage site and pain should be investigated

Poly-lactic acid nanoparticles (PLA-NP) promote physiological modifications in lung epithelial cells and are internalized by clathrin-coated pits and lipid rafts

BackgroundPoly-lactic acid nanoparticles (PLA-NP) are a type of polymeric NP, frequently used as nanomedicines, which have advantages over metallic NP such as the ability to maintain therapeutic drug levels for sustained periods of time. Despite PLA-NP being considered biocompatible, data concerning alterations in cellular physiology are scarce.MethodsWe conducted an extensive evaluation of PLA-NP biocompatibility in human lung epithelial A549 cells using high throughput screening and more complex methodologies. These included measurements of cytotoxicity, cell viability, immunomodulatory potential, and effects upon the cells’ proteome. We used non- and green-fluorescent PLA-NP with 63 and 66 nm diameters, respectively. Cells were exposed with concentrations of 2, 20, 100 and 200 µg/mL, for 24, 48 and 72 h, in most experiments. Moreover, possible endocytic mechanisms of internalization of PLA-NP were investigated, such as those involving caveolae, lipid rafts, macropinocytosis and clathrin-coated pits.ResultsCell viability and proliferation were not altered in response to PLA-NP. Multiplex analysis of secreted mediators revealed a low-level reduction of IL-12p70 and vascular epidermal growth factor (VEGF) in response to PLA-NP, while all other mediators assessed were unaffected. However, changes to the cells’ proteome were observed in response to PLA-NP, and, additionally, the cellular stress marker miR155 was found to reduce. In dual exposures of staurosporine (STS) with PLA-NP, PLA-NP enhanced susceptibility to STS-induced cell death. Finally, PLA-NP were rapidly internalized in association with clathrin-coated pits, and, to a lesser extent, with lipid rafts.ConclusionsThese data demonstrate that PLA-NP are internalized and, in general, tolerated by A549 cells, with no cytotoxicity and no secretion of pro-inflammatory mediators. However, PLA-NP exposure may induce modification of biological functions of A549 cells, which should be considered when designing drug delivery systems. Moreover, the pathways of PLA-NP internalization we detected could contribute to the improvement of selective uptake strategies

A case report on tubular duplication of cervical esophagus

Background: Foregut duplication is commonly found in the posterior mediastinum. About 10-20 of these anomalies are associated with esophageal duplication. It can occur in all parts of esophagus. Although the duplication of cervical esophagus has been previously reported, a majority of it was found in the thoracic oesophagus. Infant esophageal duplication is usually associated to respiratory distress or asymptomatic thoracic mass, casually detected in x-ray. Case Report: In this report the case was a 7 months old infant (7.5 kg) with the chief compliant of respiratory distress, fever and nutritional intolerance. Results: Physical examination of the case showed dehydration, stridor, tachypnea, intercostal retraction and neck stiffness. Plain chest radiogram showed a dual cystic mass in the distal neck region. Neck and chest CT- scan showed cervical cystic lesion disseminated to the posterior mediastinum, probably propagated to the respiratory system. For treatment, cystic lesion attached to the esophagus was partially resected, esophagus was repaired and the remaining mucosa of the cyst was removed, then gastrostomy tube was inserted. Conclusion: Although the cervical esophageal duplication of cysts are rare in infant respiratory distress, they must be considered as one of differential diagnoses of the cervical masses

Extraction and Phytochemical Analysis of Anthemis susiana Nabelek Using Headspace-solid Phase (HS-SPME) and Gas Chromatography-mass Spectrometry (GC-MS)

Chamomile has several variants, such as Anthemis Susiana Nabelek, Matricaria chamomilla L., Chamomilla recutita (L.) Rauschert, Matricaria suaveolens Koch and etc. Medicinal herbs, extracts and essential oils are of particular importance in the pharmaceutical, cosmetic and food industries. The phytoanalysis of these compounds is of particular importance. In April 2019, Anthemis Susiana Nabelek samples were collected from the Thermal Springs area of Dehloran, south of Ilam province, western Iran. The plant was dried and then pulverized. The essential oil was extracted from the plant using HS-SPME and analyzed using GC-MS. GC-MS results showed that Anthemis susiana Nabelek contains 63 chemical compounds. The main chemical compounds included alpha-bisabolol oxide A (19.07), alpha-pinene (15.50), beta-bisabolene (12.56), spathulenol (9.23), beta-farnesen (8.95), alpha-bisabolol (4.72), caryophyllene oxide (4.46), trans-farnesol (3.75), and dl-limonene (3.47)

Duplication of cervical oesophagus: A case report and review of literatures

Foregut duplication is commonly found in the posterior mediastinum. 10-20&#x0025; of these anomalies are associated with oesophageal duplication. It can occur in all parts of oesophageal length. Although duplication of cervical oesophagus has been previously reported, but a majority of them were found in thoracic oesophagus. Infants with oesophageal duplication usually manifested by respiratory distress or asymptomatic thoracic mass, casually, detected in X-ray. A 7-month-old infant weighing about 7.5 kg, with the signboard of respiratory distress, fever and nutritional intolerance was admitted to our hospital. Physical examination showed dehydration, stridor, tachypnoea, intercostal retraction and neck stiffness. Plain chest radiogram showed dubious cystic mass in the distal neck. Cervical and chest computed tomography scan showed neck cystic lesion disseminated to posterior mediastinum, probably propagated to the respiratory system. Cystic lesion connected to oesophagus was partially resected, oesophagus was repaired and remaining mucous of a cyst was removed, then gastrostomy tube was applied. Although cervical oesophageal duplication cysts are rare, but they must be considered as one of the differential diagnoses of cervical mass with respiratory distress in infants

Genome Sequence of the Bacterioplanktonic, Mixotrophic Vibrio campbellii Strain PEL22A, Isolated in the Abrolhos Bank

Vibrio campbellii PEL22A was isolated from open ocean water in the Abrolhos Bank. The genome of PEL22A consists of 6,788,038 bp (the GC content is 45%). The number of coding sequences (CDS) is 6,359, as determined according to the Rapid Annotation using Subsystem Technology (RAST) server. The number of ribosomal genes is 80, of which 68 are tRNAs and 12 are rRNAs. V. campbellii PEL22A contains genes related to virulence and fitness, including a complete proteorhodopsin cluster, complete type II and III secretion systems, incomplete type I, IV, and VI secretion systems, a hemolysin, and CTX Phi.CNPqCNPqCAPESCAPESFAPERJFAPERJDivision of Biological Infrastructure, NSFDivision of Biological Infrastructure, NSF [DBI 0850356