Objective:To investigate the dietary iodine intake of students at Mudanjiang Medical University, Heilongjiang Province.Methods:From September 2023 to June 2024, a two-stage sampling method was used to investigate students at Mudanjiang Medical University. In stage one, 250 students were selected and investigated on their dietary iodine intake using the Iodine Specific Food Frequency Questionnaire (I-FFQ). In stage two, 55 students were selected and the double-meal method was used to investigate the dietary iodine intake of students. Iodine content in food samples was determined by inductively coupled plasma mass spectrometry. Curve estimation (power function, S-shaped curve, cubic equation, growth curve) was applied to analyze the dietary iodine intake of I-FFQ and double-meal method, the regression equation was used to adjust I-FFQ.Results:A total of 237 students were enrolled in I-FFQ, with a dietary iodine intake [ M( Q1, Q3)] of 342.61 (203.77, 399.26) μg/d. The dietary iodine intake of males and females was 361.82 (235.56, 428.98) and 330.87 (190.47, 366.11) μg/d, respectively, and the difference between the two was statistically significant ( Z = - 3.06, P = 0.002). The proportions of insufficient iodine intake, appropriate iodine intake, and excessive iodine intake were 13.92% (33/237), 82.70% (196/237), and 3.38% (8/237), respectively. A total of 52 students were enrolled in the double-meal method, with an average dietary iodine intake of 645.22 (435.91, 960.50) μg/d over 3 days. The proportion of appropriate iodine intake and excessive iodine intake was 44.23% (23/52) and 55.77% (29/52), respectively. After adjusting for I-FFQ, the dietary iodine intake was 650.13 (441.68, 728.53) μg/d, with the proportions of appropriate iodine intake and excessive iodine intake being 35.02% (83/237) and 64.98% (154/237), respectively. Conclusion:More than half of the students at Mudanjiang Medical University in Heilongjiang Province are in a state of excessive iodine intake, and dietary iodine intake should be appropriately controlled.

Objective:To investigate the prognostic impact of perineural invasion in patients with stageⅢ colon cancer and to clarify its guidance value for the duration of postoperative adjuvant chemotherapy.Methods:This study employed a retrospective cohort study method. It analyzed 426 patients with stageⅢ colon cancer who underwent radical surgery at Sun Yat-sen University Cancer Center and Longyan First Affiliated Hospital of Fujian Medical University, between April 2008 and June 2020. Inclusion criteria: patients received at least 3 months of adjuvant CapeOX therapy post-surgery, had complete pathological data, and were followed up for at least 12 months after the last chemotherapy. Among these patients, 231 were male, the median age was 59 (50~67) years, and 263 tumors were located in the right-sided colon. Postoperative pathology indicated that 107 cases (25.12%) had neural invasion, and 131 patients (30.75%) had vascular tumor thrombus. All patients received at least 4 cycles of postoperative CapeOX adjuvant chemotherapy, with 193 patients receiving 8 cycles and 233 patients receiving 4 to 7 cycles of adjuvant chemotherapy. The study analyzed the impact of neural invasion status and the duration of adjuvant chemotherapy on disease-free survival (DFS). Furthermore, within subgroups stratified by different risk levels (referencing the criteria proposed by the IDEA study: high risk: T4, N2 or T4N2; low risk: T3N1) and different neural invasion statuses, the impact of the duration of adjuvant chemotherapy on prognosis was analyzed.Results:The median follow-up time for the entire cohort was 94.00 months (55.27-128.80 months). Multivariate Cox analysis indicated that pathological T stage T4 (HR = 2.457, 95%CI: 1.499-4.029, P<0.001) and postoperative pathological confirmation of perineural invasion (HR = 2.465, 95% CI: 1.519-4.000, P<0.001) were independent adverse prognostic factors for 5-year DFS. In the perineural invasion-positive group, the 5-year DFS for patients who received 8 cycles of postoperative adjuvant CapeOX chemotherapy was 86.90%, compared to 58.22% for those who received 4-7 cycles, with statistically significant differences (both P<0.05). In the perineural invasion-negative group, the 5-year DFS for patients who received 8 cycles was 88.66%, compared to 90.99% for those who received 4-7 cycles, with no statistically significant differences ( P=0.929). Among IDEA high-risk patients with perineural invasion, the 5-year DFS was 91.81% for those who received 8 cycles versus 50.66% for those who received 4-7 cycles, showing a statistically significant difference ( P=0.003). In IDEA high-risk patients without perineural invasion, the 5-year DFS for those who received 8 cycles was 82.28% compared to 87.32% for those who received 4-7 cycles, with no statistically significant difference ( P=0.806). In the IDEA low-risk patients, no differences were observed in the 5-year DFS between patients receiving 8 cycles and those receiving 4-7 cycles of adjuvant CapeOX chemotherapy in both perineural invasion-positive and negative subgroups (both P>0.05). Conclusion:Perineural invasion serves as a significant prognostic factor for 5-year DFS in stage Ⅲ colon cancer patients who have undergone radical surgery and postoperative adjuvant chemotherapy. It can also be considered an important reference factor in deciding the duration of postoperative adjuvant chemotherapy.

Purpose: Cancer has become a significant major public health concern, making the discovery of new cancer markers or therapeutic targets exceptionally important. Elevated expression of tumor necrosis factor receptor superfamily member 12A (TNFRSF12A) expression has been observed in certain types of cancer. This project aims to investigate the function of TNFRSF12A in tumors and the underlying mechanisms. Materials and Methods: Various websites were utilized for conducting the bioinformatics analysis. Tumor cell lines with stable knockdown or overexpression of TNFRSF12A were established for cell phenotyping experiments and subcutaneous tumorigenesis in BALB/c mice. RNA-seq was employed to investigate the mechanism of TNFRSF12A. Results: TNFRSF12A was upregulated in the majority of cancers and associated with a poor prognosis. Knockdown TNFRSF12A hindered the colorectal cancer progression, while overexpression facilitated malignancy both in vitro and in vivo. TNFRSF12A overexpression led to increased nuclear factor кB (NF-κB) signaling and significant upregulation of baculoviral IAP repeat containing 3 (BIRC3), a transcription target of the NF-κB member RELA, and it was experimentally confirmed to be a critical downstream factor of TNFRSF12A. Therefore, we speculated the existence of a TNFRSF12A/RELA/BIRC3 regulatory axis in colorectal cancer. Conclusion TNFRSF12A is upregulated in various cancer types and associated with a poor prognosis. In colorectal cancer, elevated TNFRSF12A expression promotes tumor growth, potentially through the TNFRSF12A/RELA/BIRC3 regulatory axis.

Purpose: Cancer has become a significant major public health concern, making the discovery of new cancer markers or therapeutic targets exceptionally important. Elevated expression of tumor necrosis factor receptor superfamily member 12A (TNFRSF12A) expression has been observed in certain types of cancer. This project aims to investigate the function of TNFRSF12A in tumors and the underlying mechanisms. Materials and Methods: Various websites were utilized for conducting the bioinformatics analysis. Tumor cell lines with stable knockdown or overexpression of TNFRSF12A were established for cell phenotyping experiments and subcutaneous tumorigenesis in BALB/c mice. RNA-seq was employed to investigate the mechanism of TNFRSF12A. Results: TNFRSF12A was upregulated in the majority of cancers and associated with a poor prognosis. Knockdown TNFRSF12A hindered the colorectal cancer progression, while overexpression facilitated malignancy both in vitro and in vivo. TNFRSF12A overexpression led to increased nuclear factor кB (NF-κB) signaling and significant upregulation of baculoviral IAP repeat containing 3 (BIRC3), a transcription target of the NF-κB member RELA, and it was experimentally confirmed to be a critical downstream factor of TNFRSF12A. Therefore, we speculated the existence of a TNFRSF12A/RELA/BIRC3 regulatory axis in colorectal cancer. Conclusion TNFRSF12A is upregulated in various cancer types and associated with a poor prognosis. In colorectal cancer, elevated TNFRSF12A expression promotes tumor growth, potentially through the TNFRSF12A/RELA/BIRC3 regulatory axis.

Purpose: Cancer has become a significant major public health concern, making the discovery of new cancer markers or therapeutic targets exceptionally important. Elevated expression of tumor necrosis factor receptor superfamily member 12A (TNFRSF12A) expression has been observed in certain types of cancer. This project aims to investigate the function of TNFRSF12A in tumors and the underlying mechanisms. Materials and Methods: Various websites were utilized for conducting the bioinformatics analysis. Tumor cell lines with stable knockdown or overexpression of TNFRSF12A were established for cell phenotyping experiments and subcutaneous tumorigenesis in BALB/c mice. RNA-seq was employed to investigate the mechanism of TNFRSF12A. Results: TNFRSF12A was upregulated in the majority of cancers and associated with a poor prognosis. Knockdown TNFRSF12A hindered the colorectal cancer progression, while overexpression facilitated malignancy both in vitro and in vivo. TNFRSF12A overexpression led to increased nuclear factor кB (NF-κB) signaling and significant upregulation of baculoviral IAP repeat containing 3 (BIRC3), a transcription target of the NF-κB member RELA, and it was experimentally confirmed to be a critical downstream factor of TNFRSF12A. Therefore, we speculated the existence of a TNFRSF12A/RELA/BIRC3 regulatory axis in colorectal cancer. Conclusion TNFRSF12A is upregulated in various cancer types and associated with a poor prognosis. In colorectal cancer, elevated TNFRSF12A expression promotes tumor growth, potentially through the TNFRSF12A/RELA/BIRC3 regulatory axis.

Objective:To explore the safety and efficacy of computed tomography (CT) guided percutaneous interstitial brachytherapy in the treatment of recurrent cervical cancer with isolated lesions in the radiated field.Methods:A retrospective analysis was conducted on the clinical data of 30 patients with recurrent cervical cancer with isolated lesions in the radiated field who underwent CT guided percutaneous interstitial implantation for close range radiation treatment at Zhengzhou University Affiliated Cancer Hospital from March 2023 to August 2024. Under local anesthesia, a needle was implanted into the recurrent tumor in the pelvic or abdominal wall of the patients percutaneously guided by CT. The target area was delineated to ensure full dose coverage. The prescribed dose for high-risk clinical target areas was 600 cGy/time, once a week, followed by close range radiotherapy. The number of implanted needles were recorded, and the target area, radiation dose, and other parameters were evaluated through dose volume parameter maps. The degree of lesion shrinkage and the occurrence of complications during and after treatment were observed.Results:30 patients underwent a total of 72 rounds of brachytherapy with implantation, with a technical success rate of 100% (72/72). 20 cases received 2 treatments, 8 cases received 3 treatments, and 2 cases received 4 treatments; 4 cases used 1needle, 20 cases used 2 needles, 4 cases used 3 needles, and 2 cases used 4 needles. The high-risk clinical target dose D 90 was (718.17±222.61) cGy. The average dose D 2cc of 2 cm 3 surrounding the bladder, rectum, sigmoid colon, and small intestine was (168.29±53.80) cGy, (178.87±105.38) cGy, (136.05±78.06) cGy, and (288.91±117.49) cGy, respectively. The median follow-up time was 11 months. Among the 30 patients, there were 12 cases of complete remission,14 cases of partial remission, 3 cases of stable disease, and 1 case of disease progression, with an objective remission rate of 86.7%. None of the patients experienced significant bleeding or pain during treatment. After treatment, 3 patients with recurrent lymph nodes near the rectum developed grade 1 radiation proctitis, which was remitted after treatment. No significant complications were observed in the remaining patients. Conclusion:CT guided percutaneous brachytherapy is safe and feasible for the recurrence of single lesions in the radiated field of cervical cancer.

OBJECTIVES: This retrospective study aimed to investigate factors influencing positional changes of the condyle and temporomandibular joint (TMJ) following mandibular defect reconstruction with bone flaps, and to evaluate the biomechanical impacts of flap reconstruction on condylar positioning, thereby providing evidence for optimizing surgical protocols and TMJ functional rehabilitation. METHODS: A retrospective study was conducted on 90 patients undergoing mandibular segmental resection with immediate bone flap reconstruction at Guizhou Medical University Affiliated Stomatological Hospital (June 2019 to May 2024). After strict screening, 50 cases with complete data were analyzed. Clinical parameters (defect size, location, reconstruction method) and craniofacial CT scans at four timepoints [preoperative (T0), 7-10 days (T1), 3 months (T2), and 6 months (T3) postoperatively] were collected. Mimics 20 software facilitated 3D reconstruction for measuring TMJ anterior/posterior/superior joint spaces (Kamelchuk method) and calculating condylar position via the Pullinger index [Ln (posterior/anterior space)]. Vitral and Krisjane methods quantified mandibular linear parameters (ramus length, condylar pole distances to the sagittal plane, angulation) and glenoid fossa morphology. Statistical analyses were performed using SPSS 21.0. RESULTS: Mandibular defect size and location were significant factors influencing postoperative condylar position changes (P<0.05). Compared to preoperative measurements, postoperative condylar anterior, posterior, and superior joint spaces were significantly increased (P<0.001). The most pronounced anterior condylar displacement occurred within 7-10 days postoperatively (P<0.05). In patients with condyle resection, postoperative joint space and angle changes were significant; in patients with condyle preservation, only superior and anterior joint space changes were statistically significant (P<0.05). Additionally, from T1 to T2, the changes in condylar medial-lateral distance, superior joint space, and anterior joint space were negatively correlated with the preoperative condylar position. Compared with preoperative,in the T0-T1 period, condylar medial-lateral distance, posterior joint space, and articular tubercle angle changes were significantly negatively correlated with time (P<0.05). Notably, the angle between the condylar long axis and the coronal axis showed a sustained negative trend from T1 to T3 (P<0.05). CONCLUSIONS Condylar position changes after mandibular defect repair with bone flap reconstruction are associated with the size and location of the defect. Additionally, adaptive remodeling of the temporomandibular joint (TMJ) joint space occurs postoperatively. The phenomenon of anterior displacement of the condyle in the early postoperative period (7-10 days) shows a trend of reduction with prolonged follow-up time, and further sample size research is needed.
Humans ; Retrospective Studies ; Temporomandibular Joint/surgery* ; Mandibular Condyle/surgery* ; Male ; Female ; Adult ; Middle Aged ; Mandibular Reconstruction/methods* ; Mandible/surgery* ; Surgical Flaps ; Tomography, X-Ray Computed ; Young Adult ; Biomechanical Phenomena ; Aged ; Adolescent ; Imaging, Three-Dimensional

Objective To analyze the predictive value of serum inflammatory factors in multidrug-re-sistant pulmonary tuberculosis.Methods A total of 151 newly treated pulmonary tuberculosis patients admit-ted to Quzhou Hospital Affiliated to Wenzhou Medical University from February 2021 to February 2023 were enrolled for standardized treatment.Based on whether multidrug resistance developed after treatment,patients were divided into multidrug-resistant group and non-multidrug-resistant group.Pretreatment serum levels of inflammatory factors were measured and compared between groups,including hypersensitive C-reactive pro-tein(hs-CRP),procalcitonin(PCT),IL-1α,IL-1β,IL-1 receptor antagonist(IL-1RA),IL-2,IL-4,IL-5,IL-6,IL-8,IL-9,IL-10,IL-12,IL-13,IL-15,IL-17,IL-18,IL-22,IL-35,tumor necrosis factor-α(TNF-α),TNF-γ,and CD40 ligand(CD40L).Logistic regression identified influencing factors for multidrug-resistant pulmonary tu-berculosis.Receiver operating characteristic(ROC)curves evaluated the predictive value of these indicators.Results The incidence of multidrug-resistant pulmonary tuberculosis was 21.85%(33/151).The levels of se-rum inflammatory factors in the drug-resistant group were higher than those in the non-drug-resistant group before treatment(P<0.05).History of alcohol consumption,presence of cavities,severe illness,adherence to treatment,and pre-treatment serum hs-CRP,PCT,IL-6,IL-18,TNF-α levels were all influencing factors for multidrug resistance in pulmonary tuberculosis patients(P<0.05).The sensitivity and area under curve(AUC)of the combined prediction of serum hs-CRP,PCT,IL-6,IL-18,TNF-α levels before treatment for multidrug-resistant pulmonary tuberculosis were higher than those of individual predictions.Conclusion The levels of serum inflammatory factors are related to multidrug resistance in pulmonary tuberculosis,and the combina-tion of serum hs-CRP,PCT,IL-6,IL-18,TNF-α can predict multidrug resistance in pulmonary tuberculosis.