A Three-Step Process to Facilitate the Enantioselective Assembly of Cis-Fused Octahydrophenanthrenes with a Quaternary Stereocenter.

A three-step process for the enantioselective assembly of cis-fused octahydrophenanthrenes with a quaternary stereocenter is reported. This synthetic strategy relies on a regioselective γ-alkylation, a one-pot sequence of asymmetric hydrogenation and oxidation, and an intramolecular enolate arylation to facilitate the rapid and enantioselective construction of cis-fused octahydrophenanthrene scaffolds with an arylated all-carbon quaternary stereocenter concisely and efficiently.

Fabrication of Three-Dimensional ZnO: Ga@ITO@Ag SERS-Active Substrate for Sensitive and Repeatable Detectability.

Vertically aligned ZnO: Ga nanotowers can be directly synthesized on a glass substrate with a ZnO seed film via the chemical bath method. A novel heterostructure of ZnO: Ga@ITO@Ag nanotowers was subsequently deposited in the ITO layer and Ag nanoparticles via the facile two-step ion-sputtering processes on the ZnO: Ga nanotowers. The appropriate ion-sputtering times of the ITO layer and Ag nanoparticles can benefit the fabrication of ZnO: Ga@ITO@Ag nanotowers with higher surface-enhanced Raman scattering (SERS) enhancement in detecting rhodamine 6G (R6G) molecules. Compared with ZnO: Ga@Ag nanotowers, ZnO: Ga@ITO@Ag nanotowers exhibited a high SERS enhancement factor of 2.25 × 108 and a lower detection limit (10-14 M) for detecting R6G molecules. In addition, the ITO layer used as an intermediate layer between ZnO: Ga nanotowers and Ag nanoparticles can improve SERS enhancement, sensitivity, uniformity, reusability, detection limit, and stability for detecting amoxicillin molecules. This phenomenon shall be ascribed to the ITO layer exhibiting a synergistic Raman enhancement effect through interfacial charge transfer for enhancing SERS activity. As a result, ZnO: Ga@ITO@Ag nanotowers can construct a three-dimensional SERS substrate for potential applications in environmentally friendly and cost-effective chemical or drug detection.

Body constitution of traditional Chinese medicine caused a significant effect on depression in adult women.

BACKGROUND: and purpose: Depression is a common mental disorder and reduces quality of life. As traditional Chinese medicine constitution (TCMC) has become an increasingly popular complementary and alternative approach for early detection and treatment of disease, this study investigated the relationship of female-related factors and constitution with depression. MATERIALS AND METHODS: This cross-sectional study included 1423 women from the Taiwan Biobank. A questionnaire of 44 items was used covering a variety of factors and the Body Constitution Questionnaire. The constitution types were divided into Yang-deficiency, Yin-deficiency, and Phlegm stasis. RESULTS: Yang (p = 0.022) or Yin (p = 0.017) deficiencies, being single (p = 0.027-0.033), previous use of women's health supplements (p = 0.005-0.008), and smoking (p = 0.033-0.036) were associated with a higher risk of depression. CONCLUSION: Integration of TCMC with Western medicine may be an alternative option towards depression prevention and alleviation.

Analyzing the Association HbA1c control by Depression, social participation and Utilizing Self-management Questionnaire.

AIMS: In Taiwan, 24.7% of the population aged ≥65 years has been diagnosed with type 2 diabetes. Only 23% of diabetes patients effectively conduct self-management. This study focused on the effects of self-management among type 2 diabetes patients aged ≥65 years on the effectiveness of their HbA1c control. METHODS: This cross-sectional study enrolled patients aged ≥65 years with type 2 diabetes who were admitted to a metabolic clinic at a medical center and treated over six months. 192 patients were recruited, and data were recorded using structured questionnaires. The HbA1c level of the recruited subjects was measured for statistical analysis. RESULTS: Older age, education, living alone, and an above-average level of self-management were associated with increased HbA1c control effectiveness; patients who used insulin had worse HbA1c control effectiveness. CONCLUSION: That cohabitants living with diabetes patients affected the effectiveness of HbA1c control, suggesting that family members should also participate in self-management education programs. Given the advances in information networks, a lively and interactive mode of health education animation for uneducated diabetes patients should be developed, and medical teams should be encouraged to establish a two-way communication channel with patients improve the effectiveness of HbA1c control in diabetes patients aged >65 years.

Divergent Asymmetric Total Synthesis of Mulinane Diterpenoids.

A concise, divergent, asymmetric total syntheses of mulinane diterpenoids has been achieved. Specifically, a new strategy was developed featuring a key intramolecular Friedel-Crafts reaction to construct the chiral fused 5-6-6 tricyclic motif, followed by sequential Birch reduction, conjugate methylation, and homologation/ring-expansion reactions to furnish the desired 5-6-7 tricyclic skeleton bearing five contiguous stereocenters. With this efficient strategy, seven mulinane diterpenoids and two analogues were synthesized via late-stage functional modification or functionalization in 8.6-20 % overall yields and 11-15 steps.

Asymmetric Hydrogenation of Tetrasubstituted Cyclic Enones to Chiral Cycloalkanols with Three Contiguous Stereocenters.

A highly efficient iridium-catalyzed asymmetric hydrogenation of tetrasubstituted cyclic enones has been developed for the enantioselective synthesis of chiral cycloalkanols with three contiguous stereocenters. The C═O and C═C bonds of the enone substrates were hydrogenated sequentially in one pot with excellent enantioselectivity (92 to >99% ee) and diastereoselectivity (dr 95:5 to >99:1). The reaction provided a practical approach to all of the stereoisomers of the antiulcer drug rosaprostol.