Notes

Primary proof of neighborhood photochemical manufacturing powered ozone event inside China: In a situation examine.
To investigate the influence of influence of combination with 1q21 amplification or-no in patients with newly diagnosed MM on the clinical effecacy of bortezomib-based induction chemotherapy and long-term prognosis of patients.

148 patients with newly diagnosed MM treated from January 2010 to May 2018 were selected and divided into 2 groups group A (70 patients) without 1q21 amplification and group B (78 patients) with 1q21 amplification; and the survival benefit and influence on clinical efficacy of bortezomib were compared between 2 groups, and the factors influencing clinical prognosis in the patients with newly diagnosed MM were analyzed.

The median PFS and OS of patients in B group were significantly shorter than those in group A (P＜0.05). There was no significant difference in the median OS and PFS between patients with 1q21 amplification copies number =3 and ＞3 (P＞0.05). Multivariate Cox model analysis indicated that the adverse factors for OS were ISS staging, Hb levels, β2 microglobulin levels atients with newly treated MM. The application of bortezomib-containing induction chemotherapy in patients with 1q21 amplification can efficiently improve the remission rate, while auto-HSCT consolidation therapy may prolong patients' PFS.
To evaluate the value of serum free light chain (sFLC) κ/λ ratio (sFLCR) on the diagnosis and prognosis of patients with newly diagnosed multiple myeloma(MM), and explore the effect of sFLCR normalization on the prognosis of patients after 4 courses of induction therapy.

The clinical data of 43 newly diagnosed MM patients from January 2014 to January 2019 were analyzed retrospectively. Immunoturbidimetry was used to detect the expression levels of sFLC κ and λ. According to the ratio of involved and uninvolved sFLC, using 100 as a boundary, the MM patients were divided into the high ratio group (sFLCR≥100 or ≤0.01) and the low ratio group (0.01<sFLCR<100). The clinical indicators, the curative effect after 4 courses of induction therapy, and the survival time of the two groups were compared. And according to whether the sFLCR was normal after the 4 courses of induction therapy, the MM patients were divided into normal and abnormal sFLCR groups. The survival time of the two groups were compared.

Co There was no statistically significant difference (P>0.05).

Patients in the high ratio group at the initial diagnosis have worse renal function, later stage of disease, lower deep remission rate, earlier disease progression, shorter survival time, and worse clinical prognosis.
Patients in the high ratio group at the initial diagnosis have worse renal function, later stage of disease, lower deep remission rate, earlier disease progression, shorter survival time, and worse clinical prognosis.
To explore the clinical significance of platelet closure time (PCT) in patients with multiple myeloma (MM).

Peripheral blood samples of 50 newly diagnosed MM patients treated in our hospital from July 2018 to November 2019 and 34 healthy persons underuent physical at the same time were collected. PCT induced by collagen/epinephrine (CEPI) and collagen/adenosinediphosphate (CADP) in peripheral blood were detected by PFA-200，and the clinical data included age, sex, leukocyte count, hemoglobin level, platelet count and level of serum creatinine, cystatin c, blood calcium, β
-microglobulin (β
-MG), bone marrow plasma cells, light chain protein, as well as the MM types, ISS stage of patients were collected.

The level of PCT in MM patients was significantly higher than that in healthy persons; the level of PCT were significantly increased with the increasing of ISS stage in newly diagnosed MM patients; After chemotherapy with bortezomib/dexamethasone (BD), the level of PCT in 15 patients who were responded to the treatment was significantly lower than those before treatment.

The platelet closure time is abnormal in MM patients, moreover, relates to the progress of the disease. It has an important clinical significance for the evaluation of diagnostic stage and therapeutic efficacy evaluation of MM patients.
The platelet closure time is abnormal in MM patients, moreover, relates to the progress of the disease. It has an important clinical significance for the evaluation of diagnostic stage and therapeutic efficacy evaluation of MM patients.
To investigate the effect of quercetin (que) on proliferation and apoptosis of multiple myeloma cell line NCI-H929.

NCI-H929 cells were routinely cultured, and cells in logarithmic growth phase were taken and used for experiments. After treatment of NCI-H929 cells with Que of 50, 100 and 200 µmol/ L for 24, 48 and 72 hours, the proliferation level of cells was detected by using MTT method; after treatment of NCI-H929 cells with Que of 100 and 200 µmol/ L for 24 hours, the cell apoptosis level was detected by Annexin V-FITC/PI double staining, the changes of cell cycle was analysis by flow cytometry with PI marking; the expression of apoptosis-related proteins caspase-3, caspase-8, caspase-9, PARP, BCL-2 and cell cycle-related proteins P53, P21, P27, CDK4, and the activiation of ERK and ATK were detected by Western blot.

Que of different concentration could inhibit cell proliferation with time and dose dependent manner. The flow cytometry showed that Que could significantly increase the cell apoptosis and arrest NCI-H929 cells in the G
/M phase. Autophagy inhibitor In addition, Western blot analysis showed that Que could activate the apoptosis-related proteins, such as caspase-3, caspase-8, caspase-9 and PARP, and then inhibited the expression of BCL-2. Que could promote the expression of P53, P21 and P27, however, it could inhibited the CDK4 expression in NCI-H929 cells. Que could decrease the phosphorylation levels of p-ERK and p-AKT in NCI-H929 cells.

Quercetin mediates anti-myeloma effects through inducing apoptosis, cell cycle arrest and down-regulating ERK and AKT pathways in human myeloma cells.
Quercetin mediates anti-myeloma effects through inducing apoptosis, cell cycle arrest and down-regulating ERK and AKT pathways in human myeloma cells.
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