The right subclavian artery normally arises from the brachiocephalic artery. Anomalies in development may lead to peculiar problems during surgery. We report a patient with esophageal carcinoma who had an aberrant right subclavian artery, posing specific difficulties during a transhiatal esophagectomy, requiring conversion of the procedure into a transthoracic approach. The embryologic basis of this anomaly and the clinical significance are discussed.

Studies show a low progression rate of prediabetes to Type 2 diabetes mellitus (DM) that we commonly seek to reverse, but we don't associate prediabetes as a lead-up to the first presentation of ketosis. We present a prediabetic who, in less than a year, converted to GAD65 antibody-positive diabetes mellitus with a diabetic ketoacidosis presentation. A 69-year-old male presented with three weeks of fatigue, polyuria, polydipsia, abdominal pain, and weight loss. Vital signs and physical exam were normal except for abdominal tenderness and dry oral mucosa. Complete blood count (CBC) was normal; blood glucose was severely elevated with mild corrected hyponatremia; elevated anion gap metabolic acidosis with glucosuria and ketonuria. He received an insulin drip, normal saline, and potassium in the intensive care unit. His anion gap closed overnight and was switched to basal-bolus insulin. Hemoglobin A1c (HbA1c) came out to be higher than expected as compared to last year of low prediabetic value, decreased c-peptide levels, and positive anti-GAD65 antibody. His first abnormal HbA1c was 5.8% a year ago and no autoimmune marker was checked before. He was vaccinated with the messenger ribonucleic acid (mRNA) coronavirus disease 2019 (COVID-19) vaccine a year ago with an mRNA vaccine booster two months earlier. He was not COVID-19 infected. We discharged him with a basal-bolus insulin regimen. Type I DM passes from autoimmunitypositive normoglycemia to dysglycemia to the symptomatic stage, typically progressing more rapidly in children than in older adults. A new Type I or dysglycemia in Type II DM is increasingly reported after COVID-19 vaccines/infection. Mechanisms could be cytokine-mediated beta-cell damage or autoimmunity after mRNA vaccines or as a part of autoimmune syndrome induced by vaccine adjuvants. This case reports the rapid progression of prediabetes to Type 1 rather than Type 2 DM and highlights the possibility of dysglycemia after COVID-19 vaccines and calls for measures to prevent or early management of these side effects.

Highlights In vitro protocorms development for Dendrobium longicornu was successfully established on endophytic elicitor supplemented MS-medium. Methanol extract of protocorms biomass was evaluated for its antioxidant, anticancer and antimicrobial effects. Bioactive secondary metabolites present in methanol extract were identified by GC–MS technique. Methanol extract showed moderate antioxidant, anticancer and antimicrobial effects. Protocorms of this plant are the good source of bioactive compounds for the industrial applications.

A growing number of case reports and series have described a wide spectrum of neurological manifestations of COVID-19 disease including encephalopathy, cerebrovascular disease, and Guillain-Barre syndrome (GBS). However, peripheral neuropathy associated with COVID-19 disease has been uncommonly reported.Here, we describe a young patient with a COVID-19 infection who developed unilateral sciatic neuropathy during the course of treatment requiring prolonged physical medicine and rehabilitation stay. She was treated in the intensive care unit (ICU) for hypoxic respiratory failure for 22 days total, during which she was intubated, sedated, and paralyzed for 14 days. She received dexamethasone, convalescent plasma, and remdesivir for COVID-19; she also received ceftriaxone and azithromycin for possible superimposed bacterial pneumonia. The hypoxic respiratory failure was improved progressively, and she was extubated. On day 17 of ICU stay, she reported numbness and weakness in left leg and had 0/5 motor strength at the left ankle in all directions. She was able to move left hip and knee and had decreased sensation to light touch and pain from the level of the left knee to the toes. Imaging of the brain and spine showed no obvious findings that would explain the neurological symptoms. On electromyography (EMG), there was acute denervation in the left tibialis anterior muscle. She required prolonged physical medicine and rehabilitation care, greater than 60 days during which she had some improvement in sensation, but remained without ankle movement for two more months. This could be a rare manifestation of COVID-19-induced sciatic mono-neuropathy given her symptoms, EMG reports, clinical exam, and normal imaging studies.

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