The Diagnostic and Differential Value of the Serum Albumin-to-Globulin Ratio in Multiple Myeloma.

Background: This study aimed to investigate the clinical value of the serum albumin-to-globulin ratio (AGR) in diagnosing multiple myeloma (MM) and its differential diagnosis from other conditions such as liver and kidney diseases to provide scientific evidence for clinical decision-making.

Methods: A total of 52 newly-diagnosed MM patients from Tongxiang First People's Hospital between January 2020 and June 2024 were selected as the study group. Additionally, 56 patients newly diagnosed with liver disease and 58 patients newly diagnosed with kidney disease during the same period were used as disease control groups, along with 54 healthy individuals serving as the normal control group.

Falsely elevated type IV collagen caused in part by heterophilic antibodies: A case report.

Immunoassays, which are used ubiquitously in clinical practice, are inherently vulnerable to distortions arising from endogenous immunoglobulins, particularly heterophilic antibodies. While many studies have explored interference in substances measured using chemiluminescence or electrochemiluminescence methods based on the double-antibody sandwich principle, there are limited data on interference in immunoturbidimetric assays, particularly for type IV collagen. This article presents the first report of a noteworthy increase in serum type IV collagen levels stemming from heterophilic antibody interference detected through an immunoturbidimetric assay.

[Changes of heme oxygenase-1 expression in the nigrostriatal system of MPTP-treated SAMP8 mouse].

Aim: To explore the relationship between the expression of hemeoxygenase-1 (HO-1) and the dopaminergic system impairment in MPTP-treated SAMP8 mice.

Methods: 6-month-old male SAMP8 mice received MPTP (20 mg/kg) subcutaneous injection at 2-h intervals for 4 times, and the control group was treated with an equal volume of normal saline. Mice were sacrificed at 6 h, 24 h, 3 d and 8 d after the first injection for the detection of the changes of tyrosine hydroxylase (TH) and HO-1 in the nigrostriatal system by immunohistochemistry and Western blotting.