P.01.25 THE RELATIONSHIP BETWEEN CHRONIC ATROPHIC GASTRITIS AND VITAMIN B12 AND FERRITIN SERUM LEVELS: A CLINICAL STUDY ON FUNCTIONAL ATROPHY

2018 ◽  
Vol 50 (2) ◽  
pp. e130
Author(s):  
A. Noto ◽  
M. Franceschi ◽  
G. Baldassare ◽  
M.P. Panozzo ◽  
P. Crafa ◽  
...  
Author(s):  
Habibesadat Shakeri ◽  
Amir Azimian ◽  
Hamed Ghasemzadeh‐Moghaddam ◽  
Mohammadreza Safdari ◽  
Mehdi Haresabadi ◽  
...  

2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
G. F. Cittolin-Santos ◽  
S. Khalil ◽  
J. K. Bakos ◽  
K. Baker

A 28-year-old Caucasian male with Hashimoto’s disease and vitiligo presented with two weeks of dizziness on exertion following pharyngitis which was treated with prednisone 40 mg by mouth once a day for five days. Initial workup revealed anemia, elevated lactate dehydrogenase (LDH), and low haptoglobin. He underwent workup for causes of hemolytic anemia which was remarkable for a peripheral blood smear with hypersegmented neutrophils and low vitamin B12 levels concerning for pernicious anemia. Parietal cell and intrinsic factor antibodies were negative, and he then underwent an esophagogastroduodenoscopy with biopsy. The biopsy was negative for Helicobacter pylori, and the immunohistochemical stains were suggestive of chronic atrophic gastritis. He was started on vitamin B12 1,000 mcg intramuscular injections daily. His hemoglobin, LDH, and haptoglobin normalized. Given the absence of the parietal cell antibody and intrinsic factor antibody, this is a rare case of seronegative pernicious anemia.


2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Amanda M. Woodford ◽  
Rabhea Chaudhry ◽  
Gabriella A. Conte ◽  
Varsha Gupta ◽  
Madhurima Anne

Vitamin B12 is an essential nutrient which plays an important role in neurological function, hematopoiesis, and DNA synthesis. Low levels usually stem from either poor intake or a malabsorptive process. Presently, the most common cause of vitamin B12 deficiency is food-bound cobalamin malabsorption, which occurs when there is impaired release of vitamin B12 from ingested food due to an outstanding factor preventing the release of the nutrient from its transport protein. Such causes include achlorhydria, gastritis, gastrectomy, or the use of PPIs or antacids. A rarer cause is autoimmune chronic atrophic gastritis, resulting in pernicious anemia. In this disease process, there is destruction of parietal cells and thus a reduction in intrinsic factor, which is essential to the absorption of vitamin B12. Deficiency will result in a variety of abnormalities including but not limited to pancytopenia, paresthesias, and neuropsychiatric symptoms. A rare manifestation of vitamin B12 deficiency is hemolytic anemia, which occurs due to intramedullary and extramedullary dysfunction. This case describes a 46-year-old male with no past medical history who presented with chest pain, fatigue, and progressive weakness, found to have hemolytic anemia, ultimately attributed to vitamin B12 deficiency. Antiparietal cell antibodies and intrinsic factor antibodies (IFA) were both negative. Still, the patient underwent an endoscopy with biopsies of the stomach; pathology was consistent with chronic metaplastic atrophic gastritis. The patient improved with intramuscular vitamin B12 supplementation. This case highlights both a rare cause and presentation of vitamin B12 deficiency. Patients with autoimmune chronic atrophic gastritis should have antiparietal cell or intrinsic factor antibodies. Still, seronegative patients have been reported, like this patient. Additionally, hemolytic anemia secondary to vitamin B12 deficiency is uncommon. The presentation will usually mirror that of a thrombotic microangiopathy (TMA), including hemolytic anemia with schistocytes on peripheral blood smear and thrombocytopenia, as it did in this patient. This clinical entity is described as pseudothrombotic microangiopathy and is crucial to identify in order to prevent the initiation of invasive treatment strategies such as plasmapheresis.


Author(s):  
Sevim Baysak ◽  
Ebru Karagun ◽  
Havva Hilal Ayvaz

Objective: Oral isotretinoin is the most effective agent in the treatment of acne vulgaris. The risk of pigmentation due to the systemic isotretinoin may be associated with decrease in serum levels of Vit B12. The study aims to contribute to the literature by defining the association between the increase in pigmentation caused by oral isotretinoin [O-ISO] use and low vitamin B12 level [vit-B12]. Methods: In our study we evaluated 144 patients, who have facial acnes at medium degree according to FDA Acne Score and take O-ISO treatment with the dose 0.5 mg/ kg/ day for six months. The relationship of the vitamin B12 levels of the patients at the admission and 6th month and the existence of pigmentation at 6th month, the skin type and the skin layer at which the pigmentation occurs, was evaluated.Association of vit-B12 level on admission and six months post drug use with the presence of pigmentation at six months, the type of skin and the skin layer in which pigmentation occurs were evaluated. Results: In the group with pigmentation, the mean vit-B12 level after six months of drug use was statistically lower than the mean vit-B12 level on admission [p <0.001]. In patients with no pigmentation, difference between the mean levels of Vit-B12 levels was not statistically significant [p = 0,255]. Conclusion: As a result, it was determined that the mean vit-B12 level decreased due to O-ISO use and the association of hyperpigmentation and low vit-B12 level was statistically significant. Vit -B12 monitoring and supplementation, if necessary, can help us prevent hyperpigmentation that may occur during the treatment.


2020 ◽  
Author(s):  
Shihua Wu ◽  
Xing Chen ◽  
Honghong Liu ◽  
Ruilin Wang ◽  
Jianyu Li ◽  
...  

Abstract Background Zuojin Pill (ZJP) is widely used for the treatment of gastrointestinal diseases, while its specific mechanism has not been systematically investigated. The aim of this study was to explore the mechanism of intervention of ZJP in chronic atrophic gastritis (CAG) through metabolomics combined with network pharmacology.Materials and methods Potential metabolites and possible pathways for ZJP treatment of CAG were explored using a UPLC-Q-TOF/MS-based metabolomics technique. The key targeting mechanism of ZJP for CAG was explored by combining the analysis with network pharmacology.Results ZJP significantly reduced serum levels of IL-1β, IL-6, IL-10 and iNOS, and improved pathological characteristics. Metabolomic results indicated that the therapeutic effect of ZJP was mainly related to ten metabolites, including choline, L-threonine, hydroxypyruvic acid, creatine, taurine, succinic acid, cis-aconitic acid, citric acid, succinic acid semialdehyde and uric acid. Pathway analysis showed that the treatment of CAG by ZJP was associated with taurine and hypotaurine metabolism, glyoxylate and dicarboxylate metabolism, glycine, serine and threonine metabolism, glycerophospholipid metabolism, citrate cycle (TCA cycle), alanine, aspartate and glutamate metabolism, butanoate metabolism and purine metabolism. Validation of potential metabolic markers and key targets of network pharmacology by RT-PCR analysis showed that ZJP significantly down-regulated a series of inflammatory markers, such as MAPK1, PKIA, RB1, SCN5A, RXRA, E2F1, PTGS1, IGF2, ADRB1, ADRA1B, PTGS2, and GABRA1.Conclusion For the first time, a combination of metabolomics and network pharmacology has been used to clarify the therapeutic effects of ZJP on CAG and its relationship to the regulation of multiple metabolic pathways.


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