Publications by authors named "Zhi-Fang Ma"

Objective: To investigate the correlation of intermittent androgen-deprivation therapy (IADT) and continuous androgen-deprivation therapy (CADT) for advanced prostate cancer (PCa) with the risks of secondary diabetes mellitus (DM) and impaired glucose tolerance (IGT).

Methods: We conducted a retrospective case-control study of the advanced PCa patients treated by IADT or CADT in our hospital from January 2013 to December 2015. Based on the levels fasting blood glucose and 2-hour postprandial blood glucose, results of oral glucose tolerance test, and clinical symptoms of the patients, we statistically analyzed the IADT- or CADT-related risk factors for DM and IGT and the relationship of the body mass index (BMI), hypertension, smoking, and alcohol consumption with secondary DM and IGT.

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Background And Purpose: Variations of target volume and position were important factors in correction of radiotherapy planning. The purpose was to investigate the changes in volume and motion of oesophageal cancer during radiotherapy using four-dimensional computed tomography (4D-CT).

Methods And Materials: In total, 109 enhanced 4D-CT data sets were acquired for 38 patients throughout treatment.

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In ovarian cancer patients, chemotherapy resistance is the principal factor restricting long-term treatment. Paclitaxel (Pac) has been previously reported to be a ligand to Toll-like receptor 4 (TLR4). It was determined that TLR4 signaling is divided into the following two pathways: Myeloid differentiation factor 88 (MyD88)-dependent and MyD88-independent.

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Objective: To investigate the influence of registration based on different reference markers on the displacement of the geometry consisted of all clips in the cavity for external-beam partial breast irradiation at moderate deep inspiration breath holding assisted by active breathing control device.

Methods: Twenty-seven early stage breast cancer patients feasible for external beam partial breast irradiation (EB-PBI) were selected. The patients undertaken three-dimensional computed tomography (3DCT) simulation scan at moderate deep inspiration breath holding (mDIBH) assisted by active breathing control device, and two sets of mDIBH CT images were got and transferred to the Pinnacle 3 planning system.

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Background: To investigate the interfraction displacement and volume variation of primary thoracic esophagus carcinoma with enhanced four-dimensional computed tomography (4DCT) scanning during fractionated radiotherapy.

Methods: 4DCT data sets were acquired at the time of treatment simulation and every ten fraction for each of 32 patients throughout treatment. Scans were registered to baseline (simulation) 4DCT scans by using bony landmarks.

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Background: Sustained hypotension during hemodialysis (HD) is an important clinical issue. Plasma adrenomedullin (AM) is increased in HD patients with sustained hypotension, but little is known about whether removing AM can improve hypotension. The objective of this study was to investigate the beneficial effects of hemodialysis using a high-flux dialyzer on removal of increased plasma AM levels and improving low blood pressure in elderly HD patients with sustained hypotension.

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Objective: To investigate the appropriate dose of unfraction heparin and low molecular weight heparin (LMWH) in hemodialysis patients.

Methods: Thirty-eight hemodialysis patients were enrolled and randomly allocated into four groups.The initial bolus dose for the Low-dose (LH, n = 10) and high-dose heparin (HH, n = 10) groups were 35 U/kg and 55 U/kg, respectively.

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Objective: To explore the clinicopathological characteristics of hereditary ovarian cancer syndrome (HOCS).

Methods: From Jan. 2000 to Jan.

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Objective: To explore the influence of intrafraction and interfraction target displacement on the dose distribution in the target of forward whole-breast intensity-modulated radiotherapy (IMRT) assisted by active breathing control (ABC).

Methods: Each of the selected patient who had received breast conserving surgery was immobilized and received the primary CT simulation assisted by ABC device to get five sets of CT images in three different breathing status, including free breathing (FB) (one set), moderate deep inspiration breathing hold (mDIBH)(two sets) and deep expiration breathing hold (DEBH) (2 sets). After 10 to 15 fractions of radiation, the repeated CT simulation was completed and the same five sets of CT images were obtained at FB, mDIBH, and DEBH, respectively.

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Background: Previous studies showed that alpha-1,2-fucosyltransferase (HT), decay accelerating factor (DAF), and CD59 have an inhibitory effect on the immunological rejection of xenogenic transplantation.

Methods: To investigate their possible synergistic effects in suppression of heterogeneic transplantation, we produced transgenic mouse lines expressing human HT, DAF, and/or CD59 by the standard pronuclear injection approach. PCR and Southern blot were used to identify the transgenic founder lines.

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Objective: To investigate the distribution of metastatic pelvic lymph nodes in the women with early stage cervical carcinoma, and the feasibility of dividing these nodes into three stations in those patients.

Methods: (99m)Tc-DX of 2 ml was injected into the cervix to a depth of 5 to 10 mm at 3, 6, 9, 12 o'clock positions preoperatively in 196 patients with early stage cervical cancer. Pelvic lymphadenectomy and radical hysterectomy were performed in all patients.

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Objective: To explore the displacement of surgical clip and cavity during different respiratory status, intrafraction and interfraction for the patients treated by external-beam partial breast irradiation (EB-PBI) assisted by active breathing control (ABC) device after breast-conserving surgery.

Methods: After breast-conserving surgery, twenty-five patients with stage I/II breast cancer who was identified to be feasible for EB-PBI underwent CT-simulation positioning assisted with ABC device. Five series of CT images were done during three respiratory status, which included one series of images during free breathing status (FB), two series of images during moderate deep inspiration breath hold (mDIBH), two series of images during deep expiration breath hold (DEBH) at 75% maximum inspiration capacity, and all of the five series of images were transferred to ADAC Pinnacle3 treatment planning system.

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Objective: To evaluate the value of positron emission tomography (PET)-CT imaging combined with continual detection of CA125 in serum for diagnosis of early recurrent ovarian epithelial carcinoma.

Methods: Twenty six patients received PET-CT imaging, who were all diagnosed as primary epithelial ovarian cancer of stage II - IV and had complete remission after cytoreductive surgery and multiple courses of chemotherapy in Shandong Provincial Cancer Hospital. After a steady period, all patients experienced progressive rising of CA125 values 3 times in 2 months.

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