Stereo-Differentiating Asymmetric Rh(I)-Catalyzed Pauson-Khand Reaction: A DFT-Informed Approach to Thapsigargin Stereoisomers.

We report a stereo-differentiating dynamic kinetic asymmetric Rh(I)-catalyzed Pauson-Khand reaction, which provides access to an array of thapsigargin stereoisomers. Using catalyst-control, a consistent stereochemical outcome is achieved at C2─for both matched and mismatched cases─regardless of the allene-yne C8 stereochemistry. The stereochemical configuration for all stereoisomers was assigned by comparing experimental vibrational circular dichroism (VCD) and C NMR to DFT-computed spectra.

Is Lactococcus lactis a Suitable Candidate for Use as a Vaccine Delivery System Against Helicobacter pylori?

Helicobacter pylori was described in 1979. This bacterium, which thrives in the harsh conditions of the stomach, is typically acquired during childhood and can remain colonized for life. Approximately, 90% of the global population is affected, and H.

Sexual health counseling improves the sexual satisfaction of breast cancer survivors: a randomized controlled trial.

Purpose: Breast cancer and its treatments can cause sexual problems both physically and psychologically by the changes it brings. This study aimed to investigate the effect of sexual health counseling based on acceptance and commitment therapy (ACT) on the sexual satisfaction of women with chemotherapy-induced menopause (CIM) in breast cancer survivors.

Methods: Seventy women with CIM were randomly divided into two intervention (N = 34) and control (N = 36) groups.