Chiral LC method development: Stereo-selective separation, characterization, and determination of cabotegravir and related RS, RR, and SS isomeric impurities on coated cellulose-based chiral stationary phase by HILIC-LC and LC-MS.

The first, sensitive, and rapid chiral method was developed for enatioseperations and determination of cabotegravir and its enantiomeric impurities by using HPLC and LC-MS. Cabotegravir is an antiretroviral medication used for the treatment of HIV/AIDS approved by the food and drugs administration (FDA) in the year 2021. The cabotegravir chiral separation was achieved on the coated cellulose-tris (4-chloro-3-methyl phenyl carbamate) (CHIRALCEL OX-3R) column in HILIC mode and the total run time is less than 15 min.

Carcinosarcoma of Tongue with Predominant Osteosarcomatous Component.

Carcinosarcoma is exceedingly rare in the oral cavity and shows presence of both carcinomatous and sarcomatous components. We report a case of carcinosarcoma of tongue in a 51-year-old male with predominant osteosarcomatous and squamous cell carcinoma components. There was no evidence of regional or systemic metastatic disease.

Hypothyroidism in Carcinoma of the Tongue with Adjuvant Treatment.

Objective: The objective of this study was to evaluate the incidence of hypothyroidism with adjuvant treatment in oral tongue carcinoma patients treated primarily with surgery.

Materials And Methods: A retrospective review was carried out to analyze hypothyroidism incidence and its relation to adjuvant treatment (radiation/radio-chemotherapy) in oral tongue carcinoma after the primary surgical ablation and neck dissection. Hypothyroidism was analyzed in relation with dose of radiation, gender, and adjuvant treatment modality.

Safety of Completion Thyroidectomy for Initially Misdiagnosed Thyroid Carcinoma.

Introduction: Completion thyroidectomy is defined as the surgical removal of the remnant thyroid tissue following procedures of less than total or near-total thyroidectomy. Whether thyroid reoperations are associated with an increased complication risk is controversial.

Objective: A retrospective analysis was done of patients undergoing completion thyroidectomy for cancer of the thyroid who had undergone surgery elsewhere for solitary thyroid nodule.

Improvement of physical stability and dissolution rate of celecoxib suspensions by complexation with beta-cyclodextrins.

Solid dispersions of celecoxib with beta-cyclodextrins were prepared by physical mixing, slugging and kneading methods at 1:1 and 1:2 molar ratios and characterized by differential scanning calorimetry. Celecoxib suspensions were formulated employing its solid dispersions with sodium carboxymethylcellulose as the suspending agent. Stability studies were conducted by subjecting all the suspensions to freeze-thaw cycling.