In vitro evaluation of frozen thawed kangayam bull semen enriched with antioxidants.

The aim of this study was to assess the in vitro penetration rate of antioxidant enriched frozen thawed Kangayam bull semen. For the current investigation, 5-7-year-old Kangayam bulls were used. The semen was collected twice per week and two ejaculates were collected each time.

Unraveling Facial Nerve Palsy: A Case Series Highlighting Diagnostic and Therapeutic Challenges.

Facial nerve palsy (FNP) may arise from multiple etiological reasons, including anatomical anomalies, circulatory complications, and infectious agents. This case series underscores the importance of a comprehensive diagnostic approach to identify the precise etiology, including structural abnormalities, vascular anomalies, or infectious illnesses. Here, we present three distinct occurrences of FNP, emphasizing the varied diagnostic difficulties and therapeutic strategies.

ZEB1-mediated fibroblast polarization controls inflammation and sensitivity to immunotherapy in colorectal cancer.

The EMT-transcription factor ZEB1 is heterogeneously expressed in tumor cells and in cancer-associated fibroblasts (CAFs) in colorectal cancer (CRC). While ZEB1 in tumor cells regulates metastasis and therapy resistance, its role in CAFs is largely unknown. Combining fibroblast-specific Zeb1 deletion with immunocompetent mouse models of CRC, we observe that inflammation-driven tumorigenesis is accelerated, whereas invasion and metastasis in sporadic cancers are reduced.

Structural Evaluations of a Selective Human STING Agonist and Its Use in Macrophage Immunotherapies.

Previously we identified a non-nucleotide agonist BDW568 that selectively activates the human STING allele. Here, we further characterized the mechanism of BDW568 and highlighted its potential use for selectively controlling the activation of engineered macrophages that constitutively express STING as a genetic adjuvant. We obtained the crystal structure of the C-terminal domain of STING complexed with BDW-OH (active metabolite) at 1.

Palladium-Catalyzed Dearomatization of Benzothiophenes: Isolation and Functionalization of a Discrete Dearomatized Intermediate.

A Pd-catalyzed decarboxylative dearomatization reaction of a heterocyclic substrate enables access to an uncommon reaction intermediate that rearomatizes in the presence of amine bases in a net C-H functionalization sequence. The dearomatized benzo[]thiophene intermediate bears an exocyclic alkene that can be functionalized through cycloaddition and halogenation reactions to deliver complex heterocyclic products.