Two-point lifting/retracting technology for transumbilical single-port laparoscopic cholecystectomy based on the anatomical features of Calot's triangle.

Background: Among the rapidly developing single-incision laparoscopic cholecystectomy (LC) techniques, transumbilical single-incision LC is increasingly replacing the traditional LC, with advantages of minimal invasion, slight postoperative pain, faster recovery. Despite the advantages mentioned above, the currently available specialized single-port laparoscopic instruments are hindered by high costs and limited applications, challenging their widespread use in medical facilities.

Aim: To design a two-point lifting/retracting (TPLR) technique for transumbilical single-port LC (TUSPLC) based on the anatomical features of the Calot's triangle (or cystohepatic triangle) and investigate its surgical feasibility.

[Application of FTIR and Active Ingredients Quantitative Analysis on Quality Control of Dai Medicine Alstonia scholaris (L.) R. Br.].

FTIR fingerprint of the leaves and immature stems of Alstonia scholaris (L.) R. Br.

[Distinguish and Quality Estimation of the Leaves of Alstonia scholaris (L.) R. Br. from Different Harvest Time Based on the UV-Vis·FP and HPLC·FP].

UV-Vis and HPLC fingerprint of different harvest time of the leaves of Alstonia scholaris (L.) R. Br.

[Study on acute toxicity and animal gastrointestinal activity of crude and processed products of Entada phaseoloides].

Objective: To study the acute toxicity of the crude and processed products of Entada phaseoloides and their effects on gastrointestinal movement in mice.

Methods: Using the method of intragastric administration, to observe the acute toxicity of the crude and processed products of Entada phaseoloides in mice and determine their LD50. With the methods of charcoal propulsion of small intestine and methyl orange colorimetry of gastric emptying, to study the impact of the crude and processed products of Entada on gastrointestinal movement in mice.

Sulfur-containing amides from Entada phaseoloides.

To study the chemical constituents of the Entada phaseoloides (L.) Merr., seeds of Entada phaseoloides were extracted with 70% ethanol at room temperature.

Two new triterpenoids from Lycopodium obscurum L.

Two new onoceranoid triterpenoids, (3 alpha,8 beta,14 alpha,21 beta)-26,27-dinoronocerane-3,8,14,21-tetrol (1) and 26-nor-8 beta-hydroxy-alpha-onocerin (2), were isolated from Lycopodium obscurum L. Their structures were elucidated on the basis of spectroscopic analyses.

[Study on microscopic observation and TLC identification of Dai medicine "Guomaguo" (Spondias pinnata)].

Objective: To study identification methods of Dai medicine" Guomaguo", the fruit of Spondias pinnata.

Methods: Characteristic, microscopic observation and TLC idertification were used to authenticate this crude drug.

Results: The characters of the cross section, powder and TLC of the drug were reported, and the relevant drawings of the tissue, powder and TLC of this ethnomedicine were drawn.

[Study on pharmacognostic identifcation of Cassia siamea].

Objective: To establish methods for identification of Dai medicine, the heartwoods and leaves of Cassia siamea.

Methods: Macroscopic, microscopic observation and TLC technique were used to anthenticate this crude drug, and the identification characteristics were studied.

Results: Macroscopic and microscopic identification methods and TLC characters of the ethnomedicine were re-ported, and the simple and detailed drawings of the transections of the heartwoods and leaves, as well as microscopic drawings of their powders were drawn in this paper.