Hemidouble Stapling Technique versus Ghosting Double Stapling Technique for Esophagojejunostomy after Laparoscopic Total Gastrectomy.

The hemidouble stapler technique (HDST) in laparoscopic intracorporeal esophagojejunostomy has aspects that pose risks to the safety of the anastomosis. We developed a new esophagojejunostomy technique that converts a double-stapled anastomosis to a single-stapled anastomosis in laparoscopic total gastrectomy (LTG). The aim of this study is to compare the results of two techniques.

One Anastomosis Gastric Bypass versus Roux-en-Y Gastric Bypass: A Randomized Prospective Trial.

One anastomosis gastric bypass (OAGB) and Roux-en-Y gastric bypass (RYGB) surgeries are effective methods used in bariatric surgery. There are limited randomized studies comparing these procedures over more than 2 years. Here, we aimed to compare the 3-year results of two bariatric procedures.

The Effects of Nasocomial SARS-CoV-2 Infection after Elective Gastrointestinal Oncologic Procedures: Single Center 30-day Follow-up Results.

Although there is extensive debate for the best treatment strategies, limited studies, which reflect the effects of postoperative severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection on mortality and hospital stay after elective gastrointestinal oncologic procedures were published. In order to contribute to the existing literature, a single-center, retrospective, cross-sectional study, including 301 patients who underwent elective gastrointestinal oncological procedures was planned. Patients' data on sex, age, diagnosis, types of procedures, hospital stay, mortality, and SARS-CoV-2 preoperative screening tests were recorded.

A novel stent fixation method for anastomotic leaks after gastrectomy: anchoring of the distal flare to the jejunum by using through-the-scope endoclips.

Introduction: An anastomotic leak is a life-threatening complication after gastrectomy. A fully covered, self-expandable, metal stent (FC-SEMS) can be used as an alternative to traditional surgical re-intervention. However, stent migration can be worrisome.

Timing of laparoscopic cholecystectomy in patients with non-severe biliary pancreatitis.

Introduction: In patients with acute biliary pancreatitis (ABP), cholecystectomy is mandatory to prevent further biliary events, but the precise timing of laparoscopic cholecystectomy (LC) for non-severe disease remain a subject of ongoing debate.

Aim: To prove which method - early or delayed LC - is the method of choice in the non-severe disease by examining rates of gallstone-related complications, dissection difficulty, conversion rate, morbidity, mortality, and length of hospital stay.

Material And Methods: We retrospectively analysed the data of patients diagnosed with non-severe ABP, who were followed and underwent LC in our department.

An ethnobotanical study in Midyat (Turkey), a city on the silk road where cultures meet.

Background: Studies of ethnobotanical usages in south-eastern Turkey are rare. To widen this field of knowledge, we conducted an ethnobotanical study in Midyat (Mardin Province), Turkey.

Methods: The field study was completed during three years (2007-2010).

Cycloartane and oleanane-type glycosides from Astragalus pennatulus.

Four new cycloartane and one new oleanane-type glycosides were isolated from Astragalus pennatulus along with five known cycloartane-type glycosides. The structures of the new compounds were established as 3-O-β-D-xylopyranosyl-6-O-β-D-glucopyranosyl-3β,6α,16β-trihydroxy-24-oxo-20(R),25-epoxycycloartane (1), 3-O-[β-D-glucuronopyranosyl-(1 → 2)-β-D-xylopyranosyl]-3β,16β,24α-trihydroxy-20(R),25-epoxycycloartane (2), 3-O-[β-D-glucuronopyranosyl-(1 → 2)-β-D-xylopyranosyl]-3β,16β,25-trihydroxy-20(R),24(S)-epoxycycloartane (3), 3,25-di-O-β-D-glucopyranosyl-6-O-β-D-xylopyranosyl-3β,6α,16β,25-tetrahydroxy-20(R),24(S)-epoxycycloartane (4), 29-O-α-L-rhamnopyranosyl-abrisapogenol B (5) by 1D and 2D-NMR experiments along with ESIMS and HRMS analyses. The aglycone of compound 1, 3β,6α,16β-trihydroxy-24-oxo-20(R),25-epoxycycloartane, is reported for the first time.

Revision of the species of the Merodon nanus group (Diptera: Syrphidae) including three new species.

The nanus group of the genus Merodon Meigen (Diptera, Syrphidae) is revised, yielding an illustrated key, a discussion of taxonomic characters and morphological diagnosis for the five species of this group. Three new cryptic species are described, Merodon kopensis Vujić et Hayat sp. n.

Monoterpenoid glucoindole alkaloids and iridoids from Pterocephalus pinardii.

A new secondary metabolite, pterocephaline, along with the known cantleyoside, 7alpha-morroniside, 3beta,5alpha-tetrahydrodesoxycordifoline lactam, 5S-5-carboxyvincoside, sweroside, and loganin have been isolated from the aerial parts of P. pinardii (Dipsacaceae). Moreover, cantleyoside-methyl-hemiacetal and cantleyoside-dimethyl-acetal were obtained as seco-iridoid artifacts.

Triterpene glycosides from the roots of Astragalus flavescens.

Six new triterpene saponins, 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-xylopyranosyl-(1-->2)-beta-D-glucuronopyranosyl-21-epi-kudzusapogenol A (1), 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-glucuronopyranosyl-21-epi-kudzusapogenol A (2), 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-xylopyranosyl-(1-->2)-beta-D-glucuronopyranosyl-22-O-beta-D-glucopyranosyl-21-epi-kudzusapogenol A (3), 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-glucuronopyranosyl-22-O-beta-D-glucopyranosyl-21-epi-kudzusapogenol A (4), 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-xylopyranosyl-(1-->2)-beta-D-glucuronopyranosyl-22-O-alpha-L-arabinopyranosyl-21-epi-kudzusapogenol A (5), and 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-glucuronopyranosyl-22-O-alpha-L-arabinopyranosyl-21-epi-kudzusapogenol A (6), were isolated from the roots of Astragalus flavescens, together with the known trajanoside B, azukisaponin V, and astragalosides IV, VII, and VIII. Their structures were established mainly by 2D NMR techniques and mass spectrometry.

Chionaeosides A-D, triterpene saponins from Paronychia chionaea.

Four new triterpenoid saponins, chionaeosides A-D (1-4) were isolated from the roots of Paronychia chionaea. On the basis of their spectroscopic data, the structures of the new saponins were established as 3-O-alpha-L-arabinopyranosylgypsogenic acid 28-O-beta-D-glucopyranosyl-(1-->3)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside (1), 3-O-alpha-L-arabinopyranosylgypsogenic acid 28-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside (2), 3-O-alpha-L-arabinopyranosylgypsogenic acid 28-O-beta-D-glucopyranoside (3), and 3-O-alpha-L-arabinopyranosylgypsogenic acid (4).

Determination of naphthazarin derivatives in endemic Turkish Alkanna species by reversed phase high performance liquid chromatography.

The quantification of free and total alkannins in 13 endemic Anatolian Alkanna species is described for the first time. Extraction of the samples was performed by sonication with hexane, followed by hydrolysis in 1 N NaOH. For analysis, a new HPLC method, utilizing reversed phase material (Synergi Max RP), was developed and successfully validated.