Data were uploaded to the Clinical Coordinating Center (CCC) at Massachusetts General Hospital, where quality analysis and cleaning were undertaken according to standard procedures. Each participating Institutional Review Board (IRB), including the CCC IRB, approved this study with waiver of informed consent on the basis of compliance with 45 CFR 46.116d.
Norepinephrine
It is responsible for regulating various physiological processes, including blood pressure, heart rate, respiration, and metabolism.
Norepinephrine is synthesized from the amino acid tyrosine and is released from adrenergic neurons and the adrenal medulla.
It binds to and activates alpha- and beta-adrenergic receptors, leading to a wide range of effects on the cardiovascular, endocrine, and central nervous systems.
Dysregulation of norepinephrine signaling has been implicated in various neurological and psychiatric disorders, making it an important target for pharmacological interventions.
Reasearchers can optimize their norepinephrine research using PubComapre.ai, a tool that enhaces reproducibility and accuracy by locating protocols from literature, preprints, and patens, and leveraging AI-driven comparisons to identify the best protocols and products.
Most cited protocols related to «Norepinephrine»
Adults patients (≥ 18 years) with sepsis and complete fluid administration records were screened in the analysis. The following exclusion criteria were used: (1) patients who have not received any crystalloids administration; (2) patients who received albumin longer than 24 h after the initiation of crystalloids administration or preceded the crystalloids. For patients who had ICU admission more than once, only data of the first ICU admission of the first hospital stay were included.
Most recents protocols related to «Norepinephrine»
Example 16
Direct analysis of chemicals in animal tissue using probes of the invention was performed as shown in
Lipid profiles were obtained for human prostate tissues (1 mm2×15 μm,
Example 1
This section describes an example of the outcome of renal neuromodulation on human patients. A total of 45 patients (mean age of 58±9 years) diagnosed with essential hypertension were treated with percutaneous, catheter based renal nerve ablation. Treatment included RF energy delivery to the renal artery using a single-electrode Symplicity Flex™ catheter commercially available from Medtronic, Inc., of 710 Medtronic Parkway, Minneapolis, Minnesota 55432-5604. In this human trial, a radiotracer dilution method was used to assess overflow of norepinephrine from the kidneys into circulation before and 15-30 days after the procedure in 10 patients. Bilateral renal-nerve ablation resulted in a marked reduction in mean norepinephrine spillover from both kidneys: 47% (95% confidence interval) one month after treatment.
In a similar human trial where bilateral renal nerve ablation was performed in 70 patients, whole-body norepinephrine levels (i.e., a measure of “total” sympathetic activity), fell by nearly 50% after renal nerve ablation and measurement of muscle sympathetic nerve activity showed a drop of 66% over 6 months, further supporting the conclusion that total sympathetic dive was reduced by the renal denervation procedure in this patient group.
The Horowitz index was calculated at each tracked time point (0, 24, 48, 72 h), and the measured values were evaluated with Welch’s two-sample t-test. The maximum level of norepinephrine (µg/kg/min) during the first 24 h after LuTx was compared in both groups using Welch’s two-sample t-test. Postoperative ICU stay and mechanical ventilation duration was recorded and analyzed by Wilcoxon tests. Moreover, 1-year survival in both study groups was followed and survival rates were compared using log-rank tests.
We estimated the expected duration of treatment for each prescription fill by using a simplified version of the prescription drug purchases to drug use period (PRE2DUP) method15 (link),27 (link) based on packaging parameters, leaflet information, and clinical guidelines for managing affective disorders requiring antidepressant treatment. The PRE2DUP method was used to calculate the end dates of each treatment course associated with each prescription based on the dispensation date and expected duration of treatment. The treatment courses were combined into antidepressant treatment periods if there was an overlap between more than 1 consecutive treatment. We defined antidepressant treatment status (yes or no) for 7-day intervals from 168 days (24 weeks) before pregnancy to 259 days (37 weeks) of gestation, totaling 61 weeks. For 4339 pregnancies (7.5%) with gestational age at delivery of less than 37 weeks, for each week from delivery to gestational week 37, treatment status was assigned the same value as the week before delivery.
Treatment resistant is defined as a poor response to at least two different classes of antidepressant trials with each trail in adequate dosages and duration (6 weeks) [23 (link)]. Specifically, after antidepressant treatment, patients who have less than 50% Hamilton Depression Rating Scale (HAMD, 24-item) [24 (link)] score reduction were considered as TRD patients and more than 50% were considered as non-TRD patients.
Top products related to «Norepinephrine»
More about "Norepinephrine"
It plays a vital role in regulating various physiological processes, including blood pressure, heart rate, respiration, and metabolism.
Norepinephrine is synthesized from the amino acid tyrosine and is released by adrenergic neurons and the adrenal medulla.
Norepinephrine binds to and activates alpha- and beta-adrenergic receptors, leading to a wide range of effects on the cardiovascular, endocrine, and central nervous systems.
Dysregulation of norepinephrine signaling has been implicated in numerous neurological and psychiatric disorders, making it an important target for pharmacological interventions.
Researchers can optimize their norepinephine research using PubCompare.ai, a powerful tool that enhances reproducibility and accuracy.
This AI-driven platform helps researchers locate protocols from literature, preprints, and patents, and provides AI-driven comparisons to identify the best protocols and products.
By using PubCompare.ai, researchers can minimize errors and maximize insights in their norepinephrine studies.
In addition to norepinephrine, other related terms and substances that may be relevant to researchers include Claycomb medium (a culture medium for cardiomyocytes), noradrenaline (the European term for norepinephrine), L-glutamine (an essential amino acid), FBS (fetal bovine serum, a common cell culture supplement), acetylcholine (another neurotransmitter), and penicillin/streptomycin (antibiotics used in cell culture).
Optimizing the use of these tools and substances can help researchers achieve more accurate and reproducible results in their norepinephrine-related studies.