Polycythemia vera (PV) is a chronic clonal myeloproliferative disorder involving hematopoietic stem cells. This article provides a brief review of the mechanisms of erythroid abnormal amplification in PV, including the effects of JAK2 V617F and JAK2 Ex12 mutations on erythropoiesis and abnormal changes in non-specific regulation.

Objective To investigate the relationship of miRNA gene polymorphisms with blood pressure(BP)responses to the sodium and potassium diet intervention.Methods In 2004,we recruited 514 participants from 124 families in seven villages of Baoji,Shaanxi Province,China.All subjects were given a three-day normal diet,followed by a seven-day low-salt diet,a seven-day high-salt diet,and finally a seven-day high-salt and potassium supplementation.A total of 19 miRNA single nucleotide polymorphisms(SNPs)were selected for analysis.Results Throughout the sodium-potassium dietary intervention,the BP of the subjects fluctuated across all phases,showing a decrease during the low-salt period and an increase during the high-salt period,followed by a reduction in BP subsequent to potassium supplementation during the high-salt diet.MiR-210-3p SNP rs 12364149 was significantly associated with systolic BP(SBP),diastolic BP(DBP)and mean arterial pressure(MAP)responses to low-salt diet.MiR-4638-3p SNP rs6601178 was significantly associated with SBP while miR-26b-3p SNP rs115254818 was significantly associated with MAP responses to low-salt intervention.In addition,miR-26b-3p SNP rs115254818 was significantly correlated with SBP,DBP and MAP responses to high-salt intervention.MiR-1307-5p SNPs rs1 1191676 and rs2292807 were associated with SBP and MAP responses to high-salt diet.MiR-4638-3p SNP rs6601178,miR-210-3p SNP rs12364149,miR-382-5p SNP rs4906032 and rs4143957 were significantly associated with SBP response to high-salt diet.In addition,miR-26b-3p SNP rs115254818 was significantly associated with SBP,DBP and MAP responses to potassium supplementation.MiR-1307-5p SNPs rs11191676,rs2292807,and miR-19a-3p SNP rs4284505 were significantly associated with SBP responses to high-salt and potassium supplementation.Conclusion miRNA gene polymorphisms are associated with BP response to sodium and potassium,suggesting that miRNA genes may be involved in the pathophysiological process of salt sensitivity and potassium sensitivity.

OBJECTIVES: To investigate the correlation of serum levels of bridging integrating factor 1 (BIN1) with acute myocardial infarction (AMI) and Killip class of the patients. METHODS: We retrospectively collected the data from 94 patients with AMI and 30 healthy individuals for analysis of the correlations of serum BIN1 levels with Killip class, TIMI scores, and neutrophil-to-lymphocyte ratio (NLR). We also assessed the diagnostic value of BIN1 combined with NLR for AMI. RESULTS: Serum BIN1 levels were significantly lower in AMI patients than in the healthy individuals (P=0.032). The AMI patients with Killip class I had significantly lower serum BIN1 levels than the healthy individuals (P=0.008). Serum BIN1 level was an independent predictor of AMI with a predictive value of 0.630 (95% CI: 0.513-0.748) at the optimal cutoff level of 0.341 ng/mL, a specificity of 50%, and a sensitivity of 78.5%. Serum BIN1 level was also an independent predictor for Killip class I group in the AMI patients with a predictive value of 0.672 (95% CI: 0.548-0.797) at the optimal cutoff level of 0.287 ng/mL, a specificity of 74.1%, and a sensitivity of 60%. For AMI diagnosis, the combination of NLR and serum BIN1 level had a predictive value of 0.811 (95% CI: 0.727-0.895) at the optimal cutoff level of 0.548 ng/mL, with a specificity of 92.6% and a sensitivity of 62.2%. There was a positive correlation between serum BIN1 level and TIMI score in AMI patients (r=0.186, P=0.003). CONCLUSIONS BIN1 is correlated with AMI and can be helpful for predicting short-term prognosis of the patients, and BIN1 combined with NLR has a high diagnostic value for AMI.
Humans ; Myocardial Infarction/diagnosis* ; Tumor Suppressor Proteins/blood* ; Adaptor Proteins, Signal Transducing/blood* ; Retrospective Studies ; Nuclear Proteins/blood* ; Lymphocytes/cytology* ; Neutrophils/cytology* ; Female ; Male ; Prognosis ; Middle Aged

Objective:To investigate the clinical characteristics of patients with malignant tumors and immune checkpoint inhibitors (ICI) related multisystem adverse events as well as therapeutic efficacy of ICI.Methods:The general data, immune-related adverse events (irAE) type, onset time, severity and ICI efficacy of patients with malignant tumors who developed irAE after receiving ICI in China-Japan Friendship Hospital between January 2019 and November 2021 were retrospectively analyzed. All patients were divided into multisystem irAE group and single system irAE group according to whether patients with more than 1 organ or system developed irAE for once. The occurrence of irAE was summarized, and the clinical characteristics of patients were compared. Progression-free survival analysis was not performed owing to the pause of immunotherapy caused by some irAE, so the efficacy of ICI was evaluated by using ICI treatment duration (TD).Results:A total of 47 patients with malignant tumors and irAE were included in this study, with 70 times of irAE in total. The median onset time was 90 d (35 d, 196 d). Among them, 12 patients (25.53%) developed multisystem irAE (32 times of irAE in total); the other 35 patients (74.47%) developed single system irAE (38 times of irAE in total). Cutaneous toxicity for 7 times, thyroid toxicity for 7 times and pulmonary toxicity for 5 times were the most frequent among multisystem irAE group; pulmonary toxicity for 13 times, thyroid toxicity for 12 times and cutaneous toxicity for 5 times were the most frequent among single system irAE group. There were no statistically significant differences in the proportion of patients stratified by age, gender, the combination of other treatments and different body mass between the two groups (all P > 0.05). The median follow-up time was 20 months (9-40 months). The median TD of ICI was 16.00 months (95% CI 3.62-31.22 months) in multisystem irAE group and 4.60 months (95% CI 4.12-11.30 months) in single system irAE group; TD in multisystem irAE group was longer than that in single system irAE group, and the difference was statistically significant ( HR = 0.413, 95% CI 0.202-0.844, P = 0.038). Conclusions:The efficacy of ICI in patients with malignant tumors and multisystem irAE is better than that in those with single system irAE. It suggests that the better efficacy of ICI may be associated with greater risk of irAE. There is no significant difference in the clinical features between multisystem irAE and single system irAE.

Objective To analyze the clinical features of chronic rhino-sinusitis (CRS) in patients with immunoglobulin G4-related disease (IgG4-RD).Methods A retrospective analysis of the data from March 2013 to July 2015 in our Department of Rheumatology was conducted in patients who were diagnosed as IgG4-RD and were follow-up for over half a year.The clinical features and the results of laboratory tests were compared between of the case group and the control group.The t test,Mann-Whitney U test and Fisher'Exact Test (n ＜40) were used to analyze the data.Results Twenty-four cases in 44 cases of IgG4-RD were complicated with CRS (54％).The mean age was (49±13) years old,with the ratio of male:female was 2∶1;With the longer disease duration [4.0 (1.0,6.3) year vs 0.5 (0.2,4.3) year,U=-2.182,P=0.041],the more the number of organs involved [4.0 (3.8,5.3) vs 3.0 (1.0,4.0),U=-2.827,P=0.005],the higher the ratio of ocular involvement (89％ vs 42％,P=0.013).The higher the percentage of eosinophils in peripheral blood [8.5％(4.0,13.8) vs 3.3％(0.8,8.5),P=0.043],the more common the allergic manifestations (61％ vs 20％,P=0.026),the higher the operation times [1.5(1.0,3.0) vs1.0(0,10),U=2.096,P=0.048] before making the definitive diagnosis than the control group A.The level of ESR/CRP (56％ vs 0,P=0.004) and the number of IgG4 positive plasma cells [57.5(50.0,66.3)/HP vs 10.0(1.8,20.0)/HP,U=4.358,P＜0.01] and the percentage of IgG4/IgG positive plasma cell (40％ vs 10％,P＜0.01) in the nasal mucosal tissues of the IgG4-related chronic rhino-sinusitis were higher than patients with ordinary CRS (the control group B),but there was no difference in the severity of sinusitis manifestations between patients with IgG4-related chronic rhino-sinusitis and the regular CRS.Conclusion IgG4-related chronic rhino-sinusitis is different from regular CRS,and is closely associated with IgG4-related ocular lesion.IgG4-related chronic rhino-sinusitis has some clinical features which are different from other phenotypes of IgG4-related diseases.

Objective To investigate clinical and imaging characteristics of patients with relapsing polychondritis (RP) with insidious airway involvement.Methods Data collected prospectively and consecutively for patients with the diagnosis of RP and their disease activity evaluation was analyzed.The t-test and Mann-Whitney U test were used for statistical analysis between the two groups forquantitative datain normal distri-bution and non-normal distribution respectively,while Chi-square test was use for qualitative data analysis.Results Two hundred and sixteen patients with complete data from Dec 1,2007 to Jul 31,2016 were enrolled with a M:F ratio of 1:1.Mean age of disease onset was (44±16)(8～86) years.The median disease duration was 12 (0.3～480) month.The median relapsing polychondritis disease activity index (RPDAI) was 35 (8～67),the median RPODI was 2.4 (0.1～84).The top three initial presentation were auricular chondritis (28.7％),airway chondritis (24.1％) and ocular involvement (22.2％) respectively.RPODI was significantly higher in auricular chondritis (4.4) (Z=-2.084,P＜0.05) and lower in nose chondritis (0.6) (Z=-2.425,P＜0.05).Up to 81.5％ of the patients were found with airway damage and 52.3％ of them were asymptomatic.Airway damage was mostly located in trachea (79.0％ 139/176) and common features on CT scan werecharacterized by airway wail thickening (72.7％,128/176).Airway narrowing was mostly seen in symptomatic patients while calcification was seen more in asymptomatic patients.Insidious hearing-loss and nose chondritis were found not related to airway damage while obvious auricular chondritis (x2=15.580,P＜0.01),ocular involvement (x2=8.105,P＜0.01) were found to be more in patients with asymptomatic airway damage.All diagnosis before RP was organ-driven.Conclusion Airway involvement in RP is one of the three most common disease initial presentation-sand half of them are asymptomatic.RPODI is a reasonable marker for disease evaluation.Routine follow-up of airway damage (wall thickness,calcification and lumen narrowing) is essential for early RP recognition.

Objective To investigate the clinical and audiological characteristics of non-elder patients with relapsing polychondritis (RP).Methods Clinical and audiological data of patients with RP under 60 years old were collected consecutively and analyzed.The t-test and Mann-Whitney U test were used for statistical analysis between the two groups in quantitative data in normal distribution and non-normal distribution respectively,while Chi-square test was use for qualitative data analysis.Results One hundred and seventy four patients with complete data who fulfilled the Michet criteria were enrolled with a M∶F=1∶1.1.The mean age of disease onset was (39±13) (8-60) years;the median time of disease duration was 12 (1-480) months;the median relapsing polychondritis disease activity index (RPDAI) was 38(10-77) and the median RPODI was 2.4(0.1-56).Auricular chondritis (32.8％,57/174),ocular involvement (24.7％,43/174) and airway chonchritis (21.3％,37/174) were the top three onset-pattern.All parts of external,middle and inner ear were involved in RP.Inner-ear damage was the most common (95.4％,166/174) with insidious cochlea and vestibule equally distributed.Auricular chondritis was predominant in external ear involvement (55.2％,96/174);ET dysfunction was included in eardrum abnormalities of neglected middle-ear involvement (29.9％,52/174).Positive HL by active detection was 71.8％(125/174) with 14.3(25/174) HL fulfilled world health organization (WHO)-2006 criteria,including 52.0％(13/25) disabling HL.Sensorineural hearing loss (SNHL) was predominant in RP after 21 years old while 60.0％(6/10) was seen in childhood RP with non-SNHL.At least two parts of ear involvement were seen in almost all patients with heavy overlap.Conclusion All parts of ear are involved in non-elder RP with age related clinical characteristics.Active detection is a key to find insidious middle-and inner-ear involvement for early RP recognition.RPODI is a potential marker for RP evaluation.

Objective To investigate the clinical characteristics of granulomatosis with polyangiitis (GPA) patients with scleritis.Methods The completed clinical data of 102 GPA patients from March 2012 to July 2016 in Capital Medical University, Tong Ren Hospital were collected. Altogether 43 GPA patients with scleritis were enrolled, and the clinical data were analyzed respectively. The t test, Mann-Whitney U test and x2testwere used to analyze the data. Results The most common ocular manifestation in GPA was scleritis. The incidence of renal damage(37.2% vs 11.9%,x2=9.148,P=0.002),disease activity(BVAS/GPA score 8.9 vs 5.1,Z=7.847, P=0.000),DEI score (7 vs 4,Z=5.919, P=0.000),inflammation index(56 mm/1 h vs 36 mm/1 h, Z=2.456, P=0.016; CRP 51 mg/L vs 8 mg/L, Z=3.748, P=0.000), neutrophil percent (70% vs 61%, t=3.993, P=0.000),complement 3(1.2 g/L vs 1.0 g/L, t=2.652, P=0.009),plasma fibrinogen(3.5 g/L vs 3.3 g/L, t=3.947, P=0.000), D-dimmer (0.5 mg/L FEU vs 0.3 mg/L FEU, Z=2.371, P=0.018) and ANCA positive rate (90.7% vs 57.6%,x2=13.369,P=0.000)were higher in patients with scleritis,as well as a poor prognosis(2009-FFS 0.4 vs 0.1, Z=2.600, P=0.009). However, a lower rate of subglottic involvement was detected in scleritis group (4.7% vs 20.3%, x2=5.169, P=0.023). There were no significant differences between GPA patients with scleritis and episcleritis in clinical feature, disease activity, inflammatory index and prognosis. Aggressive immunosuppres-sive treatment was appropriate for GPA with scleritis. Tumor necrosis factor (TNF)-аinhibitor was an effective treatment. Conclusion GPA with scleritis usually suffered from higher disease activity index,broader DEI,as well as poorer prognosis. Aggressive treatment should be initiated in order to achieve disease remission. Subglottic involvement is less common in patients with scleritis. The phenotype of scleritis is not associated with disease severity.

Objectiv e To investigate the correlation between ( CAG) n repeat polymorphism of androgen receptor(AR)geneandmalebreastcancer.Methods 40casesofmalebreastcancerand40controlswerecol-lected.DNA was extracted from peripheral blood and the AR gene CAG coding exon sequences for PCR amplifica -tion,sequencing and calculated the number of CAG repeats frquency .χ2 test and Logistic regression analysis were used assess the AR gene CAG repeat length frequency affect the number of male breast cancer risk .Results There was statistically significant difference in male breast cancer cases and controls the number of CAG repeat length frequency.Man for whom the(CAG)n≥22 repeat sequence had 3.52 times risk of male breast compared (CAG)n≤22(OR=3.52,P=0.036).Conclusion AR gene CAG repeat length is a predictor of the frequency of male breast cancer risk .Longer CAG repeats can increase the risk of male breast cancer .