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The antral follicle count also tells you the number of eggs that can be retrieved in an ovulatory stimulation cycle for IVF . To understand this, we will quickly review the normal menstrual cycle with the ovulation of a single egg and explain what happens when we give FSH injections to stimulate multiple follicle development for an IVF cycle. Remember that the number of eggs we are able to retrieve in an IVF cycle, regardless of age, is the most important determinant of your likelihood of pregnancy; it is also the most important determinant of any age-related decline in your natural fertility.
In autoimmune gastritis , the immune system attacks the parietal cells leading to hypochlorhydria (low stomach acid secretion). This results in an elevated gastrin level in an attempt to compensate for increased pH in the stomach. Eventually, all the parietal cells are lost and achlorhydria results leading to a loss of negative feedback on gastrin secretion. Plasma gastrin concentration is elevated in virtually all individuals with mucolipidosis type IV (mean 1507 pg/mL; range 400-4100 pg/mL) (normal 0-200 pg/mL) secondary to a constitutive achlorhydria. This finding facilitates the diagnosis of patients with this neurogenetic disorder.  Additionally, elevated gastrin levels may be present in chronic gastritis resulting from H pylori infection.