399 Matching Annotations
  1. Sep 2025
    1. glucagon.

      glucagon. Directions to carry the glucagon kit with them at all times should be given. Patient compliance in this regard is variable to non-adherence so must be encouraged repeatedly.

    2. DPP

      diabetes prevention program (DPP) data. (if you say DPP, student might think you are referring to data with dipeptidyl peptidase (DPP) and DPP-4 inhibitors and look for DPP data!)

    3. corrected.

      corrected. Furthermore, once blood glucose level decreases during management of DKA, glucose may be administered along with insulin to avoid hypoglycemia as the patient is rehydrated and the electrolyte balance is returned to normal.

    4. ketones

      ketone bodies. ("ketones" and "ketone bodies" are inexact names, but as they are used in the literature and clinic, we should probably keep using these terms. However, for the written word, it is better to say "ketone bodies" than just "ketones." Not all ketone bodies are actual ketones (acetone and acetoacetate are ketones, beta-hydroxybutyrate is not a ketone).

    5. Diabetes mellitus is defined as fasting or post-meal hyperglycemia due to absolute or relative insulin deficiencies.

      This is a repeat of a sentence used at the beginning of the DM section. Delete.

    6. gluconeogenesis

      generating glucose, (the term "gluconeogenesis" is reserved specifically for using substrates like amino acids, glycerol, pyruvate/lactate in the gluconeogenesis pathway and is not used to refer the generation of increased glucose from breakdown of glycogen.)

    7. and the second phase which is due to newly synthesized insulin and can last for several hours.

      In the second phase, the undocked insulin secretory granules are part of the reserve pool and are mobilized for exocytosis and release of their contents, while additional insulin is synthesized in the beta cell. This second phase has a lower rate of insulin release and can last for an hour or more.

    8. phases – the 1st phase which is the immediate post-meal response and begins within two minutes of nutrient ingestion;

      phases. The first phase, which is the immediate post-meal response, begins within two minutes of nutrient ingestion. Insulin secretory granules docked to the beta cell plasma membrane are readily available to be released in this first phase.

    9. It is a polypeptide secreted from the beta cells of the pancreas as proinsulin. The proinsulin is stored in secretory granules. This peptide is cleaved to form insulin and C-peptide, which are stored in the cytoplasm of the cell.

      It is a polypeptide synthesized in the beta cells of the pancreas. Proinsulin is folded in the rough endoplasmic reticulum (RER) where disulfide bonds form. Proinsulin is transported to the Golgi and then to immature secretory granules where most of the proinsulin is cleaved to form A and B chains held together by disulfide bonds, and the C-peptide is released. Mature "insulin secretory granules" fuse with the plasma membrane, and mature insulin, C-peptide and a small amount of proinsulin is released outside the cell.

    10. glucagon.

      glucagon. Directions to carry the glucagon kit with them at all times should be given. Patient compliance in this regard is variable to non-adherent so must be encouraged repeatedly.

    11. corrected.

      corrected. Furthermore, once blood glucose level decreases during management of DKA, glucose may be administered along with insulin to avoid hypoglycemia as the patient is rehydrated and the electrolyte balance is returned to normal.

    12. ketones

      ketone bodies. ("ketones" and "ketone bodies" are inexact names, but as they are used in the literature and clinic, we should probably keep using these terms. However, for the written word, it is better to say "ketone bodies" than just "ketones." Not all ketone bodies are actual ketones (acetone and acetoacetate are ketones, beta-hydroxybutyrate is not a ketone).

    13. Diabetes mellitus is defined as fasting or post-meal hyperglycemia due to absolute or relative insulin deficiencies.

      This is a repeat of a sentence used at the beginning of the DM section. Delete.

    14. gluconeogenesis

      generating glucose, (the term "gluconeogenesis" is reserved specifically for using substrates like amino acids, glycerol, pyruvate/lactate in the gluconeogenesis pathway and is not used to refer the generation of increased glucose from breakdown of glycogen.)

    1. Figure 10.

      Fig 10 does not show methimazole inhibiting TPO (on the follicular cell apical membrane facing the colloid) which is the drug target. This detail would connect this discussion with the one illustrated in Figure 5. If Figure 5 is redrawn as suggested, Fig 10 could also be redrawn, as it is based on Figure 5 information.

    2. Figure 14.

      same comment as earlier- TPO is located on the apical membrane of the follicular cell, facing the colloid. This figure 14 is also based on Figure 5, so if Fig 5 is changed, Figs 10 and 14 could also be changed.

    3. T4.

      T4. Because of the similarity between TSH and a hormone that increases in pregnancy (human chorionic gonadotropin, hCG), a temporary gestational hyperthyroidism may develop with increasing hCG levels during pregnancy causing a thyrotoxicosis (discussed below).

    4. regulates the organification process, a phenomenon known as the But I Wolff-Chaikoff effect.

      regulates the uptake of iodide via the sodium/iodide symporter, resulting in reduced organification and synthesis of thyroid hormone, a phenomenon known as the Wolff-Chaikoff effect.

    5. two DIT molecules to form a T4 molecule, and that of DIT and MIT to form a T3 molecule.

      a monoiodo- or diiodotyrosine side chain to DIT residues within thyroglobulin, to form a T3 or T4 residue in thyroglobulin, respectively. (These are not really T3 and T4 molecules until released from thyroglobulin via proteolysis).

    6. the colloid fluid, which contains nascent

      the colloid fluid, an acellular, amorphous gel-like colloid that changes its density depending on the activity of the thyroid. The colloid portion of the thyroid contains nascent….

    7. fluids).

      While methimazole and propylthiouracil (PTU) both block thyroid hormone synthesis by inhibiting the PTO enzyme, PTU also inhibits peripheral T4 deiodination to active T3 so is used when a significant reduction in circulating thyroid hormone is required, as in a thyroid storm.

    8. Causes of increased TBG and high total T4:Estrogens (e.g. pregnancy, birth control pills) Congenital X-linked disorder causing elevated TBG levelsCauses of decreased TBG and low total T4:GlucocorticoidsProtein loss: malnutrition, wasting, liver failure, nephrotic syndrome

      paragraph duplicates Table 3. Remove.

    9. thyroglobulin

      "thyroglobulin by the apical plasma membrane protein thyroid peroxidase (TPO)," (Figure 5 is incorrect because TPO is on the plasma membrane, so it probably should be redrawn. However if it isn't redrawn, adding the above phrase may help with confusion over its location. If the figure 5 is redrawn, pendrin can be added on the membrane where iodide (add a negative charge on iodide I-) crosses the membrane to the colloid.)

    10. It is synthesized in the follicular cells of the thyroid and stored in the colloid space.

      Thyroglobulin is synthesized in the thyroid follicular cells and moved via exocytosis to the colloid space where it is stored. Iodide is moved from the follicular cell to the colloid via the anion transporter protein Pendrin. (Mutations in the pendrin gene can cause Pendred syndrome, with deficiencies in hearing and thyroid function).

    1. (ADH)

      (ADH) action. (Adding the word "action" covers ADH deficiency in pituitary DI as well as nephrogenic DI from vasopressin receptor (AVPR2) deficiency, and aquaporin (AQP2) deficiency.)

    2. so prolactin may be elevated in primary hypothyroidism.

      change to: "so prolactin may be elevated in primary hypothyroidism if the lack of thyroid hormone feedback inhibition causes elevated TRH." (They didn't have thyroid yet, so the connection between low TH causing high TRH needs to be made here for them.)

    3. acromegaly.

      Add: "Over-the-counter growth hormone may be used by body builders and athletes with the intention of increasing muscle mass; however the efficacy and long term effects are controversial." (Reword as you wish if you want to include this application- probably good for them to know people use this OTC, but I don't know if there is good data for its value.)

    4. Releases ACTH (corticotropin), LPH, and b-endorphin.

      Releases ACTH (adrenocorticotropin hormone/corticotropin), beta-endorphin, alpha-melanocyte stimulating hormone, and beta-lipotropin )

    5. When present in excess, GH excess can cause diabetes mellitus (high blood sugar).

      GH excess can cause high blood glucose (hyperglycemia), insulin resistance and diabetes mellitus.

    1. The hypercalcemia decreases GFR and causes diuresis.

      Among other effects, hypercalcemia causes vasoconstriction and inhibition of the Na/K/2Cl channels in the nephron ascending loop of Henle, thereby decreasing water reabsorption in the descending loop of Henle. This results in hypovolemia and the consequent decrease in the GFR.

    2. .

      Although inherited mutations in the menin tumor suppressor gene in MEN1 are recessive, the chance that an individual will acquire a somatic mutation in the other menin allele during their lifetime is so high that this inheritance is considered "autosomal dominant." (This "Two-hit hypothesis" for cancer predisposition syndromes was discussed in your previous genetics sessions.) Consequently, all three MEN syndromes (MEN1, MEN2A, MEN2B) are considered to be inherited via an autosomal dominant inheritance pattern.

    3. MEN is a term used to describe three autosomal dominant syndromes that are associated with certain hormone-producing neoplasms.

      MEN is a term used to describe three syndromes associated with certain hormone-producing neoplasms.

    4. 1,25-(OH)2-vitamin D

      1,25-(OH)2-vitamin D (calcitriol) Consider using "calcitriol" and "calcidiol" throughout the discussion to make clear that calcidiol is the most abundant form in serum and calcitriol is the active form of Vit D. These terms make it easier to read than the others. Also, these are the terms used in Fig 3.