Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR pep...Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR peptide IgG, PGE2, IL-1β in serum of SS patients using the enzyme-linked immune sorbent assay (ELISA). To measure the quantity of nitrite/nitrate, we used Griess reagent system. Key findings: Titres of M3mAChR antibody in sera from SS patients are significantly enhanced compared to healthy subjects (control). The enhancement of these autoantibodies is accompanied by the increase of the levels of PGE2, IL-1β and nitrite/nitrate in serum. Under in vitro conditions, the synthetic human M3 peptide impaires the increment of M3mAChR antibody but not that of nati-Ro/SSA antibody. In positive anti-Ro/SSA antibody patients, the increment of M3mAChR peptide IgG and the measured pro-inflammatory substances is related. Significance: On this basis, anti M3mAChR peptide IgG can be said to act as a modulator of the immune system and to play a role in the host-chronic increment of proinflammatory substances in SS patients with positive Ro/SSA antibody. This association between the antibody and the pathogenesis of SS disease may result in useful predicting SS.展开更多
BACKGROUND Primary Sjogren's syndrome(pSS)is an autoimmune disease,and renal involvement has been considered to be one of the systemic complications of pSS.Patients who have sjogren's syndrome with renal disea...BACKGROUND Primary Sjogren's syndrome(pSS)is an autoimmune disease,and renal involvement has been considered to be one of the systemic complications of pSS.Patients who have sjogren's syndrome with renal disease as the first manifestation and no exocrine gland involvement or autoantibodies can be missed clinically.CASE SUMMARY We here in report an unusual case of a primary Sjogren's syndrome in a 43-yearold female who had minimal lesion nephropathy as the initial presentation,and the patient was negative for serum anti-SSA and anti-SSB antibodies and did not have signs of exocrine gland involvement.The patient’s Sjogren's syndrome was confirmed by a minor salivary gland biopsy(MSGB)and a filter paper test.the patient’s oedema subsided,and the patient’s urinary protein resolved,showing that the treatment was effective.CONCLUSION MSGB should be considered if pSS is suspected in patients who do not have the typical pSS symptoms or who are positive for the specific autoantibodies.展开更多
目的探讨抗黑色素瘤分化相关蛋白-5(melanoma differentiation associated protein-5,MDA5)抗体、抗Ro-52抗体双阳性皮肌炎的临床特征及预后情况。方法收集2018年8月~2022年7月空军军医大学第二附属医院唐都医院收治的抗MDA5抗体阳性的4...目的探讨抗黑色素瘤分化相关蛋白-5(melanoma differentiation associated protein-5,MDA5)抗体、抗Ro-52抗体双阳性皮肌炎的临床特征及预后情况。方法收集2018年8月~2022年7月空军军医大学第二附属医院唐都医院收治的抗MDA5抗体阳性的47例皮肌炎患者,根据抗Ro-52抗体是否阳性,分为MDA5+Ro-52阳性组(n=23),MDA5+Ro-52阴性组(n=24),回顾性分析其临床资料,比较两组患者的临床特征、实验室指标、快速进展性肺间质病变发生率及病死率的差异。结果两组比较,MDA5+Ro-52阳性组Gotton疹、声音嘶哑发生率高于MDA5+Ro-52阴性组,差异均有统计学意义(P均<0.05);皮肤破溃、甲周红斑、向阳疹、披肩征、发热、关节疼痛、咽痛等发生率比较,差异均无统计学意义(P均>0.05);MDA5+Ro-52阳性组淋巴细胞计数[0.65(0.50,0.81)×10^(9)/L vs 1.18(0.91,1.63)×10^(9)/L,z=-3.821,P=0.001]、血清白蛋白[33.40(29.40,35.67)g/L vs 37.25(32.65,40.27)g/L,z=-3.325,P=0.001]、动脉氧分压[66.60(58.60,86.80)mmHg vs 88.60(75.67,95.72)mmHg,z=-2.373,P=0.018]、血氧饱和度[90.40%(89.00%,95.00%)vs 94.90%(90.50%,97.73%),z=-2.353,P=0.019]低于MDA5+Ro-52阴性组,差异有统计学意义(P<0.05),红细胞沉降率[41.00(30.00,62.50)mm/h vs 28.50(21.50,48.75)mm/h,z=2.161,P=0.031]、血清乳酸脱氢酶水平[426.00(335.50,605.50)U/L vs 260.00(217.50,373.25)U/L,z=3.313,P=0.011]、血清铁蛋白水平[1210.00(465.50,2749.00)μg/L vs 366.00(150.25,629.25)μg/L,z=2.856,P=0.004]、快速进展性肺间质病变发生率(73.91%vs 25.00%,χ^(2)=11.245,P=0.001)及病死率(43.47%vs 8.33%,χ^(2)=7.63,P=0.006)均高于抗MDA5+Ro-52阴性组,差异有统计学意义(P<0.05)。结论抗MDA5抗体、抗Ro-52抗体双阳性的皮肌炎患者易出现血清乳酸脱氢酶、铁蛋白水平增高,血清白蛋白、外周血淋巴细胞计数减低,且更易合并快速进展性肺间质病变、出现低氧血症,预后差,病死率高,需引起临床医师的重视。展开更多
文摘Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR peptide IgG, PGE2, IL-1β in serum of SS patients using the enzyme-linked immune sorbent assay (ELISA). To measure the quantity of nitrite/nitrate, we used Griess reagent system. Key findings: Titres of M3mAChR antibody in sera from SS patients are significantly enhanced compared to healthy subjects (control). The enhancement of these autoantibodies is accompanied by the increase of the levels of PGE2, IL-1β and nitrite/nitrate in serum. Under in vitro conditions, the synthetic human M3 peptide impaires the increment of M3mAChR antibody but not that of nati-Ro/SSA antibody. In positive anti-Ro/SSA antibody patients, the increment of M3mAChR peptide IgG and the measured pro-inflammatory substances is related. Significance: On this basis, anti M3mAChR peptide IgG can be said to act as a modulator of the immune system and to play a role in the host-chronic increment of proinflammatory substances in SS patients with positive Ro/SSA antibody. This association between the antibody and the pathogenesis of SS disease may result in useful predicting SS.
文摘BACKGROUND Primary Sjogren's syndrome(pSS)is an autoimmune disease,and renal involvement has been considered to be one of the systemic complications of pSS.Patients who have sjogren's syndrome with renal disease as the first manifestation and no exocrine gland involvement or autoantibodies can be missed clinically.CASE SUMMARY We here in report an unusual case of a primary Sjogren's syndrome in a 43-yearold female who had minimal lesion nephropathy as the initial presentation,and the patient was negative for serum anti-SSA and anti-SSB antibodies and did not have signs of exocrine gland involvement.The patient’s Sjogren's syndrome was confirmed by a minor salivary gland biopsy(MSGB)and a filter paper test.the patient’s oedema subsided,and the patient’s urinary protein resolved,showing that the treatment was effective.CONCLUSION MSGB should be considered if pSS is suspected in patients who do not have the typical pSS symptoms or who are positive for the specific autoantibodies.
文摘目的探讨抗黑色素瘤分化相关蛋白-5(melanoma differentiation associated protein-5,MDA5)抗体、抗Ro-52抗体双阳性皮肌炎的临床特征及预后情况。方法收集2018年8月~2022年7月空军军医大学第二附属医院唐都医院收治的抗MDA5抗体阳性的47例皮肌炎患者,根据抗Ro-52抗体是否阳性,分为MDA5+Ro-52阳性组(n=23),MDA5+Ro-52阴性组(n=24),回顾性分析其临床资料,比较两组患者的临床特征、实验室指标、快速进展性肺间质病变发生率及病死率的差异。结果两组比较,MDA5+Ro-52阳性组Gotton疹、声音嘶哑发生率高于MDA5+Ro-52阴性组,差异均有统计学意义(P均<0.05);皮肤破溃、甲周红斑、向阳疹、披肩征、发热、关节疼痛、咽痛等发生率比较,差异均无统计学意义(P均>0.05);MDA5+Ro-52阳性组淋巴细胞计数[0.65(0.50,0.81)×10^(9)/L vs 1.18(0.91,1.63)×10^(9)/L,z=-3.821,P=0.001]、血清白蛋白[33.40(29.40,35.67)g/L vs 37.25(32.65,40.27)g/L,z=-3.325,P=0.001]、动脉氧分压[66.60(58.60,86.80)mmHg vs 88.60(75.67,95.72)mmHg,z=-2.373,P=0.018]、血氧饱和度[90.40%(89.00%,95.00%)vs 94.90%(90.50%,97.73%),z=-2.353,P=0.019]低于MDA5+Ro-52阴性组,差异有统计学意义(P<0.05),红细胞沉降率[41.00(30.00,62.50)mm/h vs 28.50(21.50,48.75)mm/h,z=2.161,P=0.031]、血清乳酸脱氢酶水平[426.00(335.50,605.50)U/L vs 260.00(217.50,373.25)U/L,z=3.313,P=0.011]、血清铁蛋白水平[1210.00(465.50,2749.00)μg/L vs 366.00(150.25,629.25)μg/L,z=2.856,P=0.004]、快速进展性肺间质病变发生率(73.91%vs 25.00%,χ^(2)=11.245,P=0.001)及病死率(43.47%vs 8.33%,χ^(2)=7.63,P=0.006)均高于抗MDA5+Ro-52阴性组,差异有统计学意义(P<0.05)。结论抗MDA5抗体、抗Ro-52抗体双阳性的皮肌炎患者易出现血清乳酸脱氢酶、铁蛋白水平增高,血清白蛋白、外周血淋巴细胞计数减低,且更易合并快速进展性肺间质病变、出现低氧血症,预后差,病死率高,需引起临床医师的重视。