Surg Laparosc Endosc Percutan Tech
December 2024
Background: A history of abdominal surgery is considered a contraindication for laparoscopic procedures. However, the advancements in laparoscopic instruments and techniques have facilitated the performance of increasingly intricate operations, even in patients with prior abdominal surgeries. ICG fluorescence imaging technology offers advantages in terms of convenient operation and clearer intraoperative bile duct imaging, as confirmed by numerous international clinical studies on its feasibility and safety.
View Article and Find Full Text PDFBackground: The caudate lobe (S1) of the liver, due to its deep central position, presents a formidable challenge for laparoscopic resection. Historical skepticism about laparoscopic approaches has been overshadowed by advancements in technology and technique, with recent studies showing comparable outcomes to open surgery.
Methods: This paper introduces the "Easy First" technique and the Sextet strategies for laparoscopic hepatic caudate lobectomy.
This study presents the impact of mineral deposits (SiO, AlO, and CaCO) on the corrosion behavior of X65 pipeline steel in CO-containing brine solution with low pH. The study investigates the initiation and propagation of under deposit corrosion (UDC) using a wire beam electrode (WBE) partially covered by different mineral deposit layers, in conjunction with electrochemical measurements and surface characterization. The results indicate that the corrosion behavior varies, depending on the characteristics of the deposit.
View Article and Find Full Text PDFPlants (Basel)
September 2023
Stomatal closure is a vital, adaptive mechanism that plants utilize to minimize water loss and withstand drought conditions. We will briefly review the pathway triggered by drought that governs stomatal closure, with specific focuses on salicylic acid (SA) and reactive oxygen species (ROS). We propose that the non-expressor of PR Gene 1 (NPR1), a protein that protects plants during pathogen infections, also responds to SA during drought to sustain ROS levels and prevent ROS-induced cell death.
View Article and Find Full Text PDFLangenbecks Arch Surg
September 2023
Background/aim: Laparoscopic hepatectomy has become a common management strategy for liver tumors owing to its less invasive nature and enhanced visual perspective. Yet, its use in the caudate lobe poses challenges. This study evaluates the experiences of patients who underwent laparoscopic hepatectomy for hepatic tumors in the caudate lobe and aims to propose strategies for performing such procedures.
View Article and Find Full Text PDFBackground: Acute kidney injury (AKI) is a frequent syndrome in the intensive care unit (ICU). AKI patients with kidney function recovery have better short-term and long-term prognoses compared with those with non-recovery. Numerous studies focus on biomarkers to distinguish them.
View Article and Find Full Text PDF6-Cyano-7-aminoquinoline (6CN-7AQ) and 3-cyano-7-aminoquinoline (3CN-7AQ) were synthesized and found to exhibit intense emission with quantum yield as high as 63 % and 85 %, respectively, in water. Conversely, their derivatives 6-cyano-7-azidoquinoline (6CN-7N Q) and 3-cyano-7-azidoquinoline (3CN-7N Q) show virtually no emission, which makes them suitable to be used as recognition agents in azide reactions based on fluorescence recovery. Moreover, conjugation of 6CN-7AQ with a hydrophobic biomembrane-penetration peptide PFVYLI renders a nearly non-emissive 6CN-7AQ-PFVYLI composite, which can be digested by proteinase K, recovering the highly emissive 6CN-7AQ with ∼200-fold enhancement.
View Article and Find Full Text PDFTo evaluate the antimicrobial and antibiofilm effects of chelerythrine (CHE) against carbapenem-resistant (CRSM). The minimum inhibitory concentration (MIC) of CHE against CRSM was determined using the agar dilution method. Changes in intracellular adenosine triphosphate (ATP) concentration, intracellular pH, cell membrane potential, and cell membrane integrity were investigated to assess the influence of CHE on the cell membrane.
View Article and Find Full Text PDFYao Xue Xue Bao
December 2006
Aim: To set up an artificial neural network system and optimize by genetic algorithm (GA) to predict drug bioavailability.
Methods: Genetic algorithm was used to optimize weights of the artificial neural network. The optimal solution of the artificial neural network model at a specific condition was obtained using the good search ability of genetic algorithm in order to predict drug bioavailability.
Objective: To study on effects of injection of Huangqi Injectio into Zusanli (ST 36) on the hospital infection and immune function in the patient of schizophrenia.
Methods: Thirty inpatients of chronic schizophrenia were treated with injection of Huangqi Injectio into bilateral Zusanli (ST 36), 2 mL each point, thrice each week, for 8 weeks. Relative immune indexes and the hospital infection were investigated.
[reaction: see text] Oxidation of substituted cyclopentadienes by molecular oxygen afforded the corresponding pyrylium cations in acidic solution, whereby an oxygen atom was inserted into the cyclopentadiene ring. This novel one-step reaction proceeds in a different yield depending on substitution patterns of the cyclopentadiene. A possible reaction pathway and formation mechanism of the pyrylium cation are proposed and discussed.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2005
Two novel phenylated pyrylium compounds, silver (I)-bridged 2,3,4,5-tetraphenylpyrylium perchlorate (P1) and its silver (I)-free pyrylium ligand (P2) were prepared from 1,2,3,4-tetraphenylcyclopentadiene to examine their spectroscopic behaviors. The UV/vis absorption and fluorescent emission spectra of P1 and P2, measured in three solvents (acetonitrile, dichloromethane and toluene), reveal that the photophysical behaviors are closely related to silver (I) fragment, and strongly dependent on solvent polarity. In polar acetonitrile, P1 displays longer absorption wavelength and much lower fluorescent emission intensity than P2, although they exhibit much similarity in shape.
View Article and Find Full Text PDFPhenyl-substituted cyclopentadienes are proved to form phenylated pyrylium cations in the presence of silver(I) perchlorate by insertion of an oxygen atom into the cyclopentadiene-ring. Three phenylated pyrylium compounds, [(Ph(5)C(5)O(+))(ClO(4)(-))](2)(CH(2)Cl(2)) (1), Ag(ClO(4))(H(2)O)(Ph(4)HC(5)O(+)) (ClO(4)(-)) (2), and (Ph(3)H(2)C(5)O(+))(ClO(4)(-)) (3) have been synthesized and characterized. A possible reaction pathway and formation mechanism of the pyrylium cation are proposed and discussed.
View Article and Find Full Text PDFZhonghua Zheng Xing Wai Ke Za Zhi
January 2003
Objective: To study the relationship between estrogen and the development of hemangioma.
Methods: The expression of EST and ER in samples from the thirty-eight cases of hemangioma and six cases of normal control group was examined with the immunohistochemical steptavidin peroxidase conjugated method (SP method).
Results: The EST in capillary hemangioma expressed significantly higher than in the cavernous hemangioma, the racemose hemangioma or the control group.