Publications by authors named "Qing-fang Ma"

Introduction: Brain metastases from carcinoma of prostate are rare and only few cases with brain metastases preceding the diagnosis of carcinoma of prostate have been reported in the literature. Lesions of brain metastasis from prostate cancer had a large variety of imaging presentations and it is very difficult to distinguish them from the other types of brain occupying lesions. We report one case of metastatic prostatic adenocarcinoma of cerebellopontine angle presenting as acoustic neuroma, as the first clinical evidence of metastatic carcinoma of the prostate.

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  • A systematic review and meta-analysis was conducted to assess the impact of tranexamic acid on mortality in patients with traumatic brain injury, utilizing data from databases like PubMed and EMBASE.
  • The analysis included six randomized controlled trials with a total of 30,073 participants, finding that tranexamic acid significantly reduced mortality (RR = 0.92) and the growth of hemorrhagic mass (RR = 0.78) compared to placebo.
  • Despite these positive outcomes, tranexamic acid did not significantly affect disability, neurosurgery needs, vascular embolism, or stroke rates, indicating its limited but crucial role in emergency treatment for traumatic brain injury.
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  • The study aimed to create a predictive model for patient outcomes with intracerebral hemorrhage (ICH) using clinical and CT image data from hospitals in China.
  • Data from 8,265 patients were analyzed, and factors such as age, hospitalization duration, and hematoma volume were identified as key predictors of poor outcomes, with baseline hematoma volume being the most significant.
  • The model developed could effectively predict outcomes for ICH patients, potentially benefiting clinical practice in the future.
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The optimal conditions for melanin extraction from Auricularia auricula-judae (Hei 29) fruiting bodies was determined on the basis of the extract yield of melanin, calculated by using a single-factor experiment and response surface methodology. Its antioxidant activities were also studied in vitro. Various optimal process conditions for melanin extraction were determined by using Design-Expert software: incubation temperature, 69.

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Auricularia auricula-judae is an edible and medicinal fungus ranking fourth in production among the edible fungi cultivated worldwide. White villous disease is rampant in Northeast China; it infects the fruiting bodies of A. auricula-judae by forming a white mycelial layer on its ventral side.

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Objective: To evaluate the accuracy of marginal and internal fit of the zirconium copings manufactured by two different computer-aided design(CAD)/computer-aided manufacturing(CAM)system on the implant abutment.

Methods: Using different scanning mode,five Procera(®) zirconium copings and five Lava zirconium copings were fabricated on the same implant abutment, and then compared with five precious metal copings fabricated by traditional method. Fifteen abutment replica were made with die-stone and the copings were randomly cemented on them, then they were sectioned and invested.

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