A 65-year-old male patient was admitted for recurrent lymph node enlargement for 5 years and elevated creatinine for 6 months. This patient was diagnosed with angioimmunoblastic T-cell lymphoma 5 years ago and underwent multiple lines of anti-tumor therapy, including cytotoxic chemotherapy; epigenetic modifying drugs such as chidamide and azacitidine; the immunomodulator lenalidomide; and targeted therapy such as rituximab, a CD20-targeting antibody, and brentuximab vedotin, which targets CD30. Although the tumor was considered stable, multiple virus activation (including BK virus, JC virus, and cytomegalovirus) accompanied by the corresponding organ damage (polyomavirus nephropathy, cytomegalovirus retinitis, and progressive multifocal leukoencephalopathy) occurred during anti-tumor treatment. Anti-tumor therapy was suspended and ganciclovir was used. The serum viral load decreased and organ functions were stabilized. The purpose of this report was to raise clinicians′ awareness of opportunistic virus reactivation during anti-tumor treatment.

Objective To investigate the effects of sodium-glucose cotransporter 2 inhibitor combined with Lepidium seed on cardiac,digestive,and pulmonary function in patients with heart failure complicated by pulmonary infection.Methods A total of 168 patients with heart failure and lung infection admitted to Zigui County Hospital of Traditional Chinese Medicine from August 2017 to March 2019 were selected as the research objects.They were divided into observation group and control group according to different treatment methods(84 patients per group).The control group received sodium-glucose cotransporter 2 inhibitor combined with ceftazidime,while the observation group was treated with Lepidium seed on the basis of control group for 30 days.Nutritional status[prealbumin(PA),albumin(ALB),red blood cell count(RBC),body mass index(BMI)],immune function[cytoplasmic domains(CD3,CD4,CD8),immunoglobulins(IgG,IgM)],inflammatory cytokines[interleukins(IL-8,IL-10,IL-17),tumor necrosis factor-α(TNF-α)],intestinal flora(Enterococcus,Escherichia coli,Lactobacillus,Bifidobacterium,Saccharomycetes,Digestion),and cardiopulmonary function[arterial partial pressure of oxygen(PaO2),arterial partial pressure of carbon dioxide(PaCO2),heart rate(HR),maximum oxygen consumption(VO2max),maximum exercise load(Wmax),maximum oxygen pulse,anaerobic threshold(AT),forced expiratory volume in one second/forced lung volume ratio(FEV1/FVC),FEV1 and maximal voluntary ventilation(MVV)]were compared between the two groups before and after treatment.Results After treatment,PA,ALB,RBC,BMI,CD3,CD4,CD8,IgG and IgM,Lactobacillus,Bifidobacterium,PaO2,VO2max,Wmax,maximum oxygen pulse,AT,FEV1/FVC,FEV1,MVV all increased significantly compared to before treatment.IL-8,IL-17,TNF-α,Enterococcus,Escherichia coli,PaCO2,and heart rate were significantly reduced compared to before treatment.The levels of PA,ALB,RBC,BMI,CD3,IgG,IgM,IL-10,Bifidobacterium,Lactobacillus,PaO2,VO2max,Wmax,maximum oxygen pulse,AT,FEV1/FVC,FEV1,and MVV in the observation group were significantly higher than those in the control group after treatment[PA(mg/L):259.69±20.73 vs.217.69±20.73,ALB(g/L):41.46±4.58 vs.36.56±3.73,RBC(×1012/L):4.52±0.24 vs.4.21±0.31,BMI(kg/m2):22.37±2.73 vs.19.66±2.24,CD3:0.63±0.08 vs.0.56±0.08,IgG(g/L):21.85±3.68 vs.15.72±4.36,IgM(g/L):4.68±1.68 vs.3.73±1.67,IL-10(ng/L):65.28±7.23 vs.50.23±6.14,Bifidobacterium(CFU/kg):83.5±8.6 vs.78.5±8.3,Lactobacillus(CFU/kg):62.1±6.5 vs.53.5±6.0,PaO2(mmHg,1 mmHg≈0.133 kPa):98.36±1.75 vs.91.95±2.95,VO2max(L/min):1.71±0.35 vs.1.22±0.39,Wmax(W):127.49±19.54 vs.97.49±15.37,maximum oxygen pulse(L/time):11.27±2.42 vs.9.46±2.79,AT:(50.49±7.48)%vs.(41.35±6.67)%,FEV1/FVC:(75.68±5.86)%vs.(65.48±8.54)%,FEV1:(82.44±5.73)%vs.(73.57±7.75)%,MVV(L/min):74.86±10.64 vs.64.63±9.68,all P<0.05].CD4,CD8,IL-8,IL-17,TNF-α.Enterococcus,Escherichia coli,PaCO2,and heart rate levels were significantly lower than those in the control group[CD4:0.32±0.06 vs.0.39±0.05,CD8:0.28±0.06 vs.0.34±0.05,IL-8(ng/L):16.64±2.63 vs.26.35±4.13,IL-17(ng/L):112.38±30.16 vs.207.75±42.23,TNF-α(ng/L):45.27±10.23 vs.61.26±14.29,Enterococcus(CFU/kg):63.6±5.6 vs.69.5±6.8,Escherichia coli(CFU/kg):65.8±6.4 vs.70.5±7.0,PaCO2(mmHg):41.84±4.45 vs.56.18±5.37,heart rate(bpm):75.96±11.57 vs.91.57±12.68,all P<0.05].Conclusions Treatment with Lepidium seed combined with sodium-glucose cotransporter 2 inhibitor improved cardiopulmonary function,reduced inflammation,enhanced nutrition,and normalized gut flora in heart failure patients with lung infections.Our findings support integrating this combination into clinical guidelines for optimized management of these critically ill patients.

Objective:To investigate the effect of highly active antiretroviral therapy(HAART) on thyroid function in adult patients with acquired immunodeficiency syndrome(AIDS).Methods:A cross-sectional retrospective study was conducted on 1 276 AIDS patients hospitalized in the Department of Infection, Guangzhou Eighth People′s Hospital from June 2017 to May 2020. General data, the first laboratory examination on admission, thyroid function, and related antibodies were collected and analyzed. A total of 176 patients were included in the study and divided into HAART group( n=83) and no-HAART group( n=93) according to whether they received HAART treatment. Results:Among 176 AIDS patients, the rate of thyroid dysfunction was 53.98%. It was significantly lower in the HAART group, compared with no-HAART group(40.96% vs 65.59%), with a statistically significant difference ( P=0.001). The course of AIDS, body mass index, CD4 + T lymphocyte count, free triiodothyronine, and serum creatinine in HAART group were significantly higher than those in no-HAART group, and aspartate aminotransferase was significantly lower than those in no-HAART group, with statistical significance(all P<0.05). There was no significant difference in age, sex, smoking history, free thyroxine, thyroid stimulating hormone, thyroid peroxidase antibody, thyroglobulin antibodies, and alanine aminotransferase between HAART group and no-HAART group(all P>0.05). The prevalence of low T 3 syndrome in HAART group was significantly lower than that in no-HAART group(14.46% vs 39.78%), and the difference was statistically significant( P<0.001). There was no significant difference in the prevalence of hyperthyroidism, hypothyroidism, and isolated low T 4 between HAART group and No-HAART group(all P>0.05). Multivariate logistics regression analysis showed that HAART was an independent protective factor for thyroid dysfunction and isolated low T 4 in AIDS patients. Conclusions:Thyroid dysfunction is a common endocrine disorder in AIDS patients that requires attention from infectious disease specialists. HAART therapy serves as a protective factor against thyroid dysfunction. Thyroid dysfunction mainly manifests as low T3 syndrome and requires continuous monitoring of thyroid function changes.

A 31-year-old man sought medical evaluation for a 2-year history of edema and proteinuria, with prior pathology suggesting atypical membranous nephropathy (MN). Despite treatment with a combination of steroids, calcineurin inhibitors, and four courses of rituximab (1 g, intravenous injection), the patient′s nephrotic syndrome showed no relief (24 h urine protein peaked at 31.18 g/d), indicating refractory nephrotic syndrome. Later in the disease course, a sudden surge of creatinine level (322.5 μmol/L) prompted a renal biopsy, which revealed concurrent acute interstitial nephritis. Further treatment involving steroids, cyclophosphamide, and a fifth rituximab infusion (1 g, intravenous injection) resulted in improvement in renal function (serum creatinine: 322.5?147 μmol/L), but the MN failed to achieve partial relief. Subsequent treatment with the novel humanized CD20 monoclonal antibody obinutuzumab (1 g, intravenous injection) was initiated. In the latest follow-up, anti-phospholipase-A2-receptor antibody (PLA2R) antibody were negative, B cells were eliminated, serum albumin was 36 g/L, urine protein-to-creatinine ratio was 4 810 mg/g, and serum creatinine was 162 μmol/L. This case underscores the potential efficacy of obinutuzumab in refractory MN. For advanced MN cases, prompt identification of the cause of acute kidney injury is crucial, emphasizing the need for targeted interventions to potentially stall renal function decline.

Primary biliary cirrhosis/cholangitis is an autoimmune disease. Renal tubular acidosis is a common form in PBC cases, but Fanconi syndrome is rarely reported. The paper reported a 66-year-old female patient with fatigue, renal insufficiency and elevated bile duct enzymes. The patient presented with type 2 proximal renal tubular acidosis and complete Fanconi syndrome. Laboratory examinations showed high-titer-positive anti-mitochondrial antibodies, elevated serum IgM, and type 3 cryoglobulinemia. Renal biopsy revealed interstitial nephritis, and electron micrographs showed abnormal mitochondria in proximal tubular epithelial cells. The patient's renal function ameliorated, and acid-base imbalance and electrolyte disturbances were corrected after high-dose glucocorticoid treatment.

The article reported one case of renal damage caused by lenvatinib in the treatment of advanced primary liver cancer. The patient was a 63-year-old male who was admitted to the hospital due to "liver cancer for 4 years, blood pressure elevation for nearly 2 years, and edema for 7 months". During the treatment of liver tumors with atezolizumab combined with lenvatinib, blood pressure increased and renal insufficiency aggravated progressively. Pathological light microscopy of renal biopsy showed endothelial cell lesion and tubulointerstitial damage, and electron microscopy showed moderate proliferation of mesangial cells and deposition of mesangial matrix. There were many agglomerated low-electron density deposits in the mesangial area, and a small amount of electron dense deposits in the subendothelium. The pathological diagnosis was endothelial cell disease (thrombotic microangiopathy) and secondary focal segmental glomerulosclerosis. Renal injury was considered as secondary to lenvatinib. After discontinuing lenvatinib and giving angiotensin receptor antagonist treatment, blood pressure was normal, urine protein turned negative, and renal function improved significantly after 8 months of outpatient follow-up.

Objective To prepare and identify rabbit anti-cyclin dependent kinase 6 (CDK6) antibody. Methods The recombinant pET21a (+)/CDK6 was successfully constructed, then the recombinant plasmid was transformed into E.coli BL21 (DE3) competent cells and was induced by isopropyl-β-D-thiogalactopyranoside (IPTG) for protein expression, which was detected by SDS-PAGE and Western blot analysis. The expressed protein was purified by nickel-chelating nitrilotriacetic acid (Ni-NTA) agarose and then analyzed by SDS-PAGE. Japanese white rabbits were immunized with purified CDK6 protein for many times every two weeks. The blood was collected at 0, 2, 4 and 6 weeks after immunization, and serum was separated from blood. The titer was detected by indirect ELISA. Western blot analysis, immunofluorescence assay and immunohistochemistry were employed to determine the specificity. Results High purity CDK6 protein and high specificity of rabbit anti-CDK6 antibody were successfully prepared. The titer of CDK6 rabbit serum antibody reached 1:30 000 after immunization, which could specifically recognize the CDK6 protein expressed in cervical cancer cell line and cervical cancer tissues. Conclusion The high titer and specificity of rabbit anti-CDK6 antibody is successfully prepared.
Animals ; Female ; Humans ; Rabbits ; Antibodies ; Antibody Specificity ; Blotting, Western ; Cyclin-Dependent Kinase 6 ; Enzyme-Linked Immunosorbent Assay ; Uterine Cervical Neoplasms

Standardized Residency Training (SRT) in China is gradually maturing. To standardize the training quality in each training base, corresponding standards have been published with regular revisions to various indicators. However, some training bases and professional bases still face challenges such as inadequate awareness of qualified teaching resources, lack of precise regulations, and absence of standardized process assessment. Through years of cumulative in-depth interpretation of various assessment indicators and innovations based on the characteristics of laboratory medicine residents, the clinical laboratory base in Cancer Hospital, Chinese Academy of Medical Sciences is continuously improving the quality of teaching staff through a multi-level teacher qualification training mode and a strict assessment mechanism. Meanwhile, a comprehensive and effective training system has been established to ensure the smooth implementation of SRT tasks. In addition, a diversified lecture system and a standardized progressive assessment process have been established to enhance the overall clinical abilities of residents.

A lung diffusion function detection system is designed. Firstly, the controllable collection of air, test gas source and calibration gas source was based on single-breath method measurement principle. Secondly, pulmonary diffusing capacity for carbon monoxide (D_lCO) was calculated by gas concentration measured by the non-dispersive infrared sensor to measure, the gas flow measured by the differential pressure sensor, and the temperature, humidity and atmospheric pressure sensors to test and evaluate the quantitative detection and evaluation of lung diffusion function. Moreover, a preliminary verification of the lung diffusion function detection system was implemented, and the results showed that the error of the lung carbon monoxide diffusion and the alveolar volume did not exceed 5%. Therefore, the system has high accuracy and is of great value for early screening and accurate assessment of COPD.
Carbon Monoxide ; Lung ; Pulmonary Diffusing Capacity/methods*

Objective:To analyze the clinical and pathological characteristics, treatment and prognosis of renal changes in patients with Kimura disease and improve the clinicians′ understanding on renal manifestations of Kimura disease.Methods:The clinical data of Kimura disease patients with definite diagnosis and detailed data in Peking Union Medical College Hospital from January 1980 to August 2020 were retrospectively analyzed. The patients were divided into renal impairment group and non-renal impairment group according to whether the kidney was involved or not and the related clinical data between the two groups were compared. The patients presenting with nephrotic syndrome were followed up.Results:There were 60 patients with Kimura disease confirmed by pathological diagnosis with 48 males. The median age was 33(3, 62) years old, and the median duration was 36(12, 111) months. There were 18 cases complicated with renal injury in 49 patients with complete routine urine and renal function examination and the main manifestations of renal injury were proteinuria and/or microscopic hematuria. There was no significant difference at age, sex and absolute value of eosinophils between the two groups (all P>0.05). Compared with the renal inpairment group, patients in non-renal inpairment group had longer course of disease, higher levels of hypersensitive C-reactive protein and erythrocyte sedimentation rate, and lower median values of total eosinophils and total IgE, but there was no statistically significant difference (all P>0.05). Among the patients with renal involvement, 6 patients met the diagnostic criteria for nephrotic syndrome, and 5 of them completed renal biopsies. The renal pathological diagnosis was membranous nephropathy in 2 cases and minimal change disease in 3 cases, and no interstitial eosinophil infiltration was found in renal biopsy tissues. These patients had a good response to glucocorticoids and/or immunosuppressive therapy, and achieved complete remission of nephrotic syndrome; at the same time, lymphadenopathy caused by Kimura disease could be well controlled. Conclusions:Kimura disease can combine with various renal lesions, and the pathology of nephrotic syndrome can be membranous nephropathy or minimal change nephropathy. After energetic treatment of glucocorticoids and/or immunosuppressive therapy, nephrotic syndrome can be completely relieved, and lymphadenopathy can be well controlled. The relationship between Kimura disease and renal disease needs further study.