Purpose: This study aimed to investigate whether serum leucine-rich α2-glycoprotein (LRG) is a useful diagnostic biomarker for endometriosis, including the evaluation of treatment efficacy and exploration of LRG production in endometriotic lesions.
Methods: Forty-three women with endometriomas were compared to 22 women with benign ovarian cysts and 30 women who underwent assisted reproduction as controls. Changes in serum LRG levels were assessed before and after surgery, and during dienogest treatment. LRG expression in endometriotic tissue samples was evaluated using immunoblotting.
Results: Serum LRG levels in the endometrioma group (80.0 ± 36.3 μg/mL) were significantly higher than those in the benign ovarian cyst (65.1 ± 27.0 μg/mL, = 0.0265) and control (57.8 ± 22.3 μg/mL, = 0.0028) groups. Serum LRG levels after endometrioma surgery were significantly lower than preoperative levels ( = 0.0484). Serum LRG levels consistently decreased during dienogest treatment. LRG expression levels were significantly higher in endometriotic tissues than in the normal endometrium.
Conclusion: Serum LRG, possibly derived from local and systemic origins, could be used as a potential biomarker for the diagnosis and treatment of endometriosis.
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http://dx.doi.org/10.1002/rmb2.12536 | DOI Listing |
Ann Med
December 2025
Department of Internal Medicine, Division of Gastroenterology and Hepatology, Keio University School of Medicine, Tokyo, Japan.
Background And Objective: Leucine-rich alpha-2 glycoprotein (LRG) is a novel biomarker for Crohn's disease (CD). The utility of combination use of LRG and C-reactive protein (CRP) has not been reported. This study aimed to investigate the diagnostic performance of LRG in combination with CRP to predict endoscopic activity.
View Article and Find Full Text PDFActa Neurol Belg
December 2024
Department of Neurology, Jinjiang Municipal Hospital (Shanghai Sixth People's Hospital Fujian Campus), No.16 Jingguang Road, Luoshan Section, Jinjiang, 362200, Fujian, China.
Background: α-synuclein, homocysteine (Hcy) and leucine-rich α2-glycoprotein (LRG) have been shown to correlate to Parkinson's disease (PD). However, it remains unclear whether these factors are associated with the occurrence of cognitive impairment (CI) in PD patients.
Methods: This study initially enrolled eligible PD patients without cognitive impairment.
Aliment Pharmacol Ther
December 2024
Center for Advanced IBD Research and Treatment, Kitasato University Kitasato Institute Hospital, Minato-ku, Tokyo, Japan.
Background: Intestinal ultrasound (IUS) is a non-invasive tool for evaluating transmural inflammation in Crohn's disease (CD). However, its utility is constrained by operator dependency and limited accessibility.
Aims: To explore the feasibility of serum biomarkers-specifically leucine-rich alpha-2 glycoprotein (LRG)-as an alternative to IUS for assessing transmural inflammation.
Sci Rep
November 2024
Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Serum leucine-rich alpha-2 glycoprotein (LRG) can monitor disease activities during biologics treatment in patients with inflammatory bowel disease (IBD). It is unclear whether the pretreatment serum LRG level can predict clinical effectiveness including serum trough levels of ustekinumab in patients with IBD. This multicenter prospective cohort study included 184 patients (Crohn's disease, 104; ulcerative colitis, 80) who received ustekinumab (n = 119) or anti-tumor necrosis factor (n = 65) between January 2019 and March 2023.
View Article and Find Full Text PDFPurpose: Examination of patients to detect periodontal disease is important for diagnosis and treatment planning, and accuracy of examination may be improved if salivary components can be applied for diagnosis. Leucine-rich α2 glycoprotein (LRG) is expressed in the serum of patients with inflammatory diseases, and salivary LRG may be applicable to the diagnosis of periodontal disease.
Methods: To evaluate the effect of initial periodontal therapy (IPT) on clinical periodontal parameters such as probing depth (PD), clinical attachment level (CAL), bleeding on probing (BOP), periodontal inflamed surface area (PISA), periodontal epithelial surface area (PESA), saliva samples were collected before and after IPT from 63 patients with chronic periodontitis.
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