At present, the computer administration and network system for diabetes still need exploration in China. A management software for the prevention and treatment of diabetes has been developed, taking the advanced MS SQL SERVER system as background database, while PowerBuilder 9.0 as foreground development tool. Both personal version and net version are configurable at random. This software includes six parts, namely the general data of patients, conventional physical examination of patients, treatment proposal, knowledge management, data query and statistical analysis, and system maintenance, in which they contact and conjugate with each other for the convenience of the whole processing. Good effects are obtained in the practical application of this software, and a regional network of the preventive and therapeutic information for diabetes is set up combining with other medical units, which can share the individual information, improve the ability of cooperative and follow-up study of diabetes, promote the data transferring and diagnosing quality of primary medical services, and is beneficial for both patients and physicians.

Objective To investigate the expression of PHF8(PHD-finger protein 8) in human hepatocellular carcinoma (HCC) and its clinicopathologic significance.Methods The expression of PHF8 in 60 hepatocellular carcinoma samples as well as their natched paraneoplastic tissues,and 15 normal liver tissues were evaluated by immunohistochemistry.Statistical methods were used to analyse the relationship between the expression of PHF8 and the clinicopathological features of these patients.Results The PHF8-positive expression rate in the HCC samples was 55.0％ and it was significantly higher than that in the paraneoplastic tissues and the normal liver tissucs (16.7％,6.7％,respectively,P＜0.05).The expression of PHF8 was closely related to tumor size,tumor nodular numbers,pathological differentiation and TNM-staging (P＜0.05 for all).The 5-year disease-free survival and overall survival in the PHF8-positive group was significantly lower than that in the negative group (P＜0.05).Conclusions PHF8 was overexpressed in HCC samples,and its expression was closely associated with HCC clinicopathological features and prognosis of the patients.

Sixty-four patients with Graves' diseases were divided into methimazole group ( n =30 ) and propylthiouracil group( n =34 ).20 healthy volunteers were used as the control group.The levels of interleukin (IL) -2,IL-6,and TSH receptor antibody (TRAb) were determined by ELISA after serum samples were eollected before treatment and after treatment for 3 and 6 months.The results showed that the general data of two groups were not significantly different before treatment.IL-2 and IL-6 levels at 6 months after treatment were significantly different from the baseline (P＜ 0.05 ),IL-2 being gradually increased while IL-6 decreased with time.The level of IL-6 in methimazole group was lower than that in propylthiouracil group after treatment for 6 months ( P＜ 0.05 ).There was no significant difference in TRAb levels between two groups before treatment while differences became significant at 3 and 6 months of treatment ( all P＜ 0.01 ),being gradually decreased with time. IL-2/IL-6 ratio became significantly greater at 3 and 6 months of treatment compared with that before treatment in the same treatment group( P＜0.05 ) and the ratio in methimazole group was higher than that in propylthiouracil group by 6 months of treatment ( P＜0.05 ).IL-6level was positively correlated with FT3 and FT4 levels,and IL-2 level was negatively correlated with FT3,FT4,and TRAb levels in GD patients before treatment.The correlations of IL-2 and IL-6 with FT3 and FT4 disappeared by 3 and 6 months of treatment.IL-2 and IL-6 levels were related with TRAb level before and after treatment in methimazole group. These results suggest that the immunosuppressive effect of methimazole is more evident than that of propylthiouracil in patients with Graves' disease.

The data of 6 patients with tertiary hyperparathyroidism were retrospectively analyzed.The first symptom in 3 patients was bone ache,1 with lower extremity weakness,1 with swelling of lower limbs,and 1 with increase serum alkaline phosphatase.5 patients had past history of renal failure,1 case suffered from severe intestinal malabsorption,and 4 of them had renal transplantation.X-ray showed subperiosteal bone resorption,bone demineralization,or cellulose osteitis.5 subjects presented with osteoporosis,and 1 of them had fractures.Left atrioventricular membrane calcification and gluteal calcification were found in each of 2 cases.4 patients suffered from hypercalcaemia,2 patients with normal serum calcium,4 with hypophosphataemia,and 6 with high levels of PTH.Pathological results showed adenoma in parathyroid gland in 4 patients and enlarged parathyroid glands in 2 patients.Serum calcium and PTH levels returned to normal after operation and calcium supplement.

Objective:To investigate the prognostic values of tumor–stroma ratio and tumor-infiltrating lymphocytes in colorec-tal cancer. Methods:A total of 218 stageⅡorⅢprimary colorectal cancer patients were analyzed for the tumor–stroma ratio (TSR) and tumor-infiltrating lymphocytes (TIL) by using HE stained histological sections. The relationship between TSR and clinicopatholog-ic variables and the difference in clinical outcomes of different groups were also analyzed. Results:Overall survival rates for the stro-ma-low group were significantly higher than the stroma-high group in stagesⅡandⅢcolorectal cancer (P＜0.05). However, the differ-ences in TSR were not correlated with clinicopathologic features such as gender and age (P>0.05). Overall survival rates of patients with high TIL were significantly higher than patients with low TIL (P＜0.05). Patients with high TIL had notable better prognosis than patients with low TIL (P＜0.05) in the stroma-low group. Conclusion:TSR and TIL are independent prognostic factors for stagesⅡandⅢcolorectal cancer. The combined estimates of TSR and TIL in routine pathology diagnoses may provide more evidence to predict the prognosis of stagesⅡandⅢcolorectal cancer.

We implemented tutorial system by relying on young teachers in hospitals and taking undergraduates in Capital Medical University as the main body aiming at cultivating students' clinical and scientific research abilities.Practice has proved that tutor system method is of great value to cultivate students' comprehensive clinical ability,scientific research ability and innovation ability.Meanwhile,this method is effective in improving clinical teaching effect.

Objective To investigate the expression of Semaphorin3B (SEMA3B) in hepatocellular carcinoma (HCC) and reveal its clinical significance.Methods Immunohistochemistry and Western blotting were performed to examine the expression of SEMA3B protein in 56 hepatocellular carcinoma samples,matched perineoplastic tissues and 14 normal liver samples.Microvessel density (MVD) was determined by counting CD34-positive endothelial cells.Statistical methods were performed to analyse the relationships between the expression of SEMA3B and clinicopathologic factors.Results The rate of the SEMA3B-positive in HCC tissues was 42.9％ and significantly lower than that in normal liver tissues and non-cancerous adjacent liver tissues(78.6％ and 85.7％,respectively)(P＜0.05).MVD in SEMA3B-positive HCC tissus was lower than that in SEMA3B-negative HCC tissus (P＜0.05).The expression of SEMA3B was closely related to tumor nodular number,tumor size,tumor capsulation and CLIP score (P＜0.05 for all).The recurrence and metastasis rate in SEMA3B-positive group was lower than that in the negative group(P＜0.05),and the survival rate in positive group was higher than that in the negative(P＜0.05).Conclusion The expression of SE-MA3B was decreased in HCC tissues,and its expression was closely associated with tumor progression,angiogenesis and prognosis,indicating that it might seve as a predictor of prognosis and a possible novel target of antiangiogenic therapy for patients with HCC.

Objective To investigate the effects of climate change on the geographical distribution of Astragalus membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Gansu Province,and predict its potential habitat;To provide a theoretical basis for resource conservation of cultivation of A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao.Methods Based on the distribution data of A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao from field surveys,the maximum entropy model and geographic information system were used to simulate its potential habitat in Gansu Province for the current(1970-2000)and future(2041-2060)periods,and the contribution of environmental factors and the results of the knife-cut test were integrated to assess the important factors governing the distribution of A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao.Results The dominant environmental variables governing the geographical distribution of A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao were precipitation in the wettest month,average temperature in the wettest season,and elevation.The potential suitable area of A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Gansu Province under current climatic conditions was 65 902.66 km2,and the high suitable area was mainly concentrated in Dingxi District.In the future period,the suitable areas of A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao under the scenarios of SSP126,SSP370 and SSP585 all showed a decreasing trend,especially the area of the high suitable areas decreased significantly.Conclusion Future climate change will lead to a significant reduction in the suitable habitat for A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao in Gansu Province.The suitable habitat will mainly move towards high-altitude mountainous areas,and the continuity of A.membranaceus(Fisch.)Bge.var.mongholicus(Bge.)Hsiao resources can be maintained by establishing ecological protection zones.

Objective:To investigate the clinicopathological characteristics, diagnosis and differential diagnosis of intravascular large B-cell lymphoma (IVLBCL) and its collision tumors.Methods:Five cases of IVLBCL were collected, including 2 cases of collision tumors, and 1 case complicated with liver cirrhosis. The morphology and immunophenotype were analyzed. The related literature was reviewed.Results:There were 2 females and 3 males, aged from 53 to 73 years, with a median age of 65 years. The tumors were located in the lower extremities, right cerebellar hemisphere, left kidney, bilateral nasal cavity, and liver, respectively. Cases 2 and 3 were incidentally found in meningioma and renal cell carcinoma tissues, respectively. Case 5 had a background of liver cirrhosis. Morphologically, atypical large lymphoid cells were located in small blood vessels and capillary lumen, with little cytoplasm, hyperchromasia, prominent nucleoli, and obvious mitotic figures. Immunohistochemically, the IVLBCL tumor cells expressed CD20 and PAX5; 2 cases were CD5 positive. One of the 5 cases was GCB phenotype, and 4 cases were non-GCB phenotype. All cases expressed C-MYC (positive rate was 10%-40%). PD-L1 was positive in 4 cases (positive rate was 60%-90%). Ki-67 proliferation index was 70%-90%. CKpan, CD3, TDT, and CD34 were negative. In case 2, meningioma cells were positive for PR, EMA, and vimentin, but negative for CKpan and PD-L1. In case 3, renal carcinoma cells were positive for CKpan, PAX8, EMA, vimentin, CAⅨ and CD10, while PD-L1 was negative. No EBER expression (by in situ hybridization) or C-MYC gene translocation (FISH, break-apart probe) was detected in any of the 5 cases. Three patients were followed up, and all died within 1-13 months.Conclusions:IVLBCL is a highly aggressive lymphoma, with occult clinical manifestations and poor prognosis. Collision tumors of IVLBCL are extremely rare. A better understanding of IVLBCL would help pathologists avoid misdiagnoses.

Objective:To investigate the role of connective tissue growth factor (CTGF) and PI3K/Akt signaling pathways in paraquat (PQ) -induced alterations in alveolar epithelial cell mesenchymalization (EMT) .Methods:In February 2023, RLE-6TN cells were divided into 2 groups, which were set as uncontaminated group and contaminated group (200 μmol/L PQ), and cellular EMT alteration, CTGF and PI3K/Akt signaling pathway related molecules expression were detected by cell scratch assay, qRT-PCR and western-blot assay. Using shRNA interference technology to specifically inhibit the expression of CTGF, RLE-6TN cells were divided into four groups: control group, PQ group (200 μmol/L PQ), interference group (transfected with a plasmid with shRNA-CTGF+200 μmol/L PQ), and null-loaded group (transfected with a plasmid with scramble- CTGF+200 μmol/L PQ), qRT-PCR and western blot were used to examine the alteration of the cellular EMT and the expression of molecules related to the activity of PI3K/Akt pathway. The PI3K/Akt signaling pathway was blocked by the PI3K inhibitor LY294002, and the expression of EMT-related molecules in cells of the control group, PQ group (200 μmol/L PQ), and inhibitor group (200 μmol/L PQ+20 μmol/L LY294002) was examined by qRT-PCR and western blot.The t-test was used to compare the differences between the two groups, while the analysis of variance (ANOVA) was applied to compare the differences among multiple groups. For further pairwise comparisons, the Bonferroni method was adopted.Results:The results of cell scratch test showed that compared with the uncontaminated group, RLE-6TN cells in the contaminated group had faster migration rate, lower mRNA and protein expression levels of E-Cadherin, and higher mRNA and protein expression levels of α-SMA, CTGF, PI3K and Akt, with statistical significance ( P<0.05). After specific inhibition of CTGF expression, the mRNA and protein expression of CTGF, PI3K, Akt, and α-SMA in the cells of the interference group were significantly lower than that of the PQ group and the null-loaded group ( P<0.05/6), whereas that of E-Cadherin was higher than that of the PQ group and the null-loaded group ( P<0.05/6). Specifically blocking the PI3K/Akt signaling pathway, the mRNA and protein expression of PI3K, Akt and α-SMA in the cells of the inhibitor group was decreased compared with that of the PQ group ( P<0.05/3), while the expression of E-Cadherin was elevated compared with that of the PQ group ( P<0.05/3) . Conclusion:CTGF may promote PQ-induced alveolar epithelial cell EMT through activation of the PI3K/Akt signaling pathway. Inhibition of CTGF expression or blockade of PI3K/Akt signaling pathway activity can alleviate the extent of PQ-induced alveolar epithelial cell EMT.