Objective: This study aims to investigate the anatomical relationship among the nerve roots, intervertebral space, pedicles, and intradural rootlets of the cervical spine for improving operative outcomes and exploring neuroventral decompression approach in posterior endoscopic cervical discectomy (PECD). Methods: Cervical computed tomography myelography imaging data from January 2021 to May 2023 were collected, and the RadiAnt DICOM Viewer Software was employed to conduct multiplane reconstruction. The following parameters were recorded: width of nerve root (WN), nerve root-superior pedicle distance (NSPD), nerve root-inferior pedicle distance (NIPD), and the relationship between the intervertebral space and the nerve root (shoulder, anterior, and axillary). Additionally, the descending angles between the spinal cord and the ventral (VRA) and dorsal (DRA) rootlets were measured. Results: The WN showed a gradual increase from C4 to C7, with measurements notably larger in men compared to women. The NSPD decreased gradually from the C2–3 to the C5–6 levels. However, the NIPD showed an opposite level-related change, notably larger than the NSPD at the C4–5, C5–6, and C7–T1 levels. Furthermore, significant differences in NIPD were observed between different age groups and genders. The incidence of the anterior type exhibited a gradual decrease from the C2–3 to the C5–6 levels. Conversely, the axillary type exhibited an opposite level-related change. Additionally, the VRA and DRA decreased as the level descended, with measurements significantly larger in females. Conclusion A prediction of the positional relationship between the intervertebral space and the nerve root is essential for the direct neuroventral decompression in PECD to avoid damaging the neural structures. The axillary route of the nerve root offers a safer and more effective pathway for performing direct neuroventral decompression compared to the shoulder approach.

AIM:To compare the efficacy and safety of early combination therapy with ranibizumab and dexamethasone intravitreal implants versus ranibizumab monotherapy for the treatment of macular edema secondary to retinal vein occlusion(RVO-ME).METHODS: A retrospective cohort study was conducted on a total of 62 cases(64 eyes)of patients who were first diagnosed with RVO-ME at the Eye Centre of the Affiliated Hospital of Shandong Second Medical University between February 2022 and February 2023. The subjects were divided into two groups according to the different treatment regimens: 32 cases(34 eyes)in the monotherapy group received only ranibizumab [3+pro re nata(PRN)regimen], and 30 cases(30 eyes)in the combination therapy group were injected with ranibizumab once first, followed by dexamethasone intravitreal implant 3 wk later(1+DEX regimen). The best corrected visual acuity(BCVA), central retina thickness(CRT), foveal avascular zone(FAZ)area, macular vascular density(MVD)at the level of the deep vascular complex(DVC)of the retina, the incidence of ocular adverse effects, the number of drug injections, and the total cost between the two groups were compared before and after treatment.RESULTS: At 3 wk, 3 and 6 mo, and at the final follow-up of the two groups of patients, the improvement in BCVA, CRT, and MVD in the DVC layer was significantly better than that before treatment(all P<0.05); there were differences in the comparisons of BCVA and CRT between the two groups at 6 mo and the final follow-up(all P<0.05), and the increase in the number of letters of BCVA was the most pronounced in the combination therapy group at 6 mo of treatment. Statistical significant difference was observed in the comparison of MVD in the DVC layer between the two groups at 3 and 6 mo after treatment and at the final follow-up(all P<0.05). However, no significant change in FAZ area was evident before and after treatment in both groups(P>0.05). The combination therapy group exhibited a reduced number of injections and total cost in comparison to the monotherapy group. The combination therapy group exhibited a slightly higher incidence of high intraocular pressure and cataract progression compared to the monotherapy group, with no statistical significant difference(all P>0.05). Furthermore, no serious adverse events were observed in either group following treatment.CONCLUSION:Compared with ranibizumab alone, ranibizumab combined with dexamethasone intravitreal implant significantly improved vision, reduced macular edema, and lowered the frequency of injections and total treatment cost in patients with RVO-ME. CRT and MVD in the DVC layer are reliable prognostic indicators for patients with RVO-ME.

Objective: This study aims to investigate the anatomical relationship among the nerve roots, intervertebral space, pedicles, and intradural rootlets of the cervical spine for improving operative outcomes and exploring neuroventral decompression approach in posterior endoscopic cervical discectomy (PECD). Methods: Cervical computed tomography myelography imaging data from January 2021 to May 2023 were collected, and the RadiAnt DICOM Viewer Software was employed to conduct multiplane reconstruction. The following parameters were recorded: width of nerve root (WN), nerve root-superior pedicle distance (NSPD), nerve root-inferior pedicle distance (NIPD), and the relationship between the intervertebral space and the nerve root (shoulder, anterior, and axillary). Additionally, the descending angles between the spinal cord and the ventral (VRA) and dorsal (DRA) rootlets were measured. Results: The WN showed a gradual increase from C4 to C7, with measurements notably larger in men compared to women. The NSPD decreased gradually from the C2–3 to the C5–6 levels. However, the NIPD showed an opposite level-related change, notably larger than the NSPD at the C4–5, C5–6, and C7–T1 levels. Furthermore, significant differences in NIPD were observed between different age groups and genders. The incidence of the anterior type exhibited a gradual decrease from the C2–3 to the C5–6 levels. Conversely, the axillary type exhibited an opposite level-related change. Additionally, the VRA and DRA decreased as the level descended, with measurements significantly larger in females. Conclusion A prediction of the positional relationship between the intervertebral space and the nerve root is essential for the direct neuroventral decompression in PECD to avoid damaging the neural structures. The axillary route of the nerve root offers a safer and more effective pathway for performing direct neuroventral decompression compared to the shoulder approach.

Objective: This study aims to investigate the anatomical relationship among the nerve roots, intervertebral space, pedicles, and intradural rootlets of the cervical spine for improving operative outcomes and exploring neuroventral decompression approach in posterior endoscopic cervical discectomy (PECD). Methods: Cervical computed tomography myelography imaging data from January 2021 to May 2023 were collected, and the RadiAnt DICOM Viewer Software was employed to conduct multiplane reconstruction. The following parameters were recorded: width of nerve root (WN), nerve root-superior pedicle distance (NSPD), nerve root-inferior pedicle distance (NIPD), and the relationship between the intervertebral space and the nerve root (shoulder, anterior, and axillary). Additionally, the descending angles between the spinal cord and the ventral (VRA) and dorsal (DRA) rootlets were measured. Results: The WN showed a gradual increase from C4 to C7, with measurements notably larger in men compared to women. The NSPD decreased gradually from the C2–3 to the C5–6 levels. However, the NIPD showed an opposite level-related change, notably larger than the NSPD at the C4–5, C5–6, and C7–T1 levels. Furthermore, significant differences in NIPD were observed between different age groups and genders. The incidence of the anterior type exhibited a gradual decrease from the C2–3 to the C5–6 levels. Conversely, the axillary type exhibited an opposite level-related change. Additionally, the VRA and DRA decreased as the level descended, with measurements significantly larger in females. Conclusion A prediction of the positional relationship between the intervertebral space and the nerve root is essential for the direct neuroventral decompression in PECD to avoid damaging the neural structures. The axillary route of the nerve root offers a safer and more effective pathway for performing direct neuroventral decompression compared to the shoulder approach.

Objective: This study aims to investigate the anatomical relationship among the nerve roots, intervertebral space, pedicles, and intradural rootlets of the cervical spine for improving operative outcomes and exploring neuroventral decompression approach in posterior endoscopic cervical discectomy (PECD). Methods: Cervical computed tomography myelography imaging data from January 2021 to May 2023 were collected, and the RadiAnt DICOM Viewer Software was employed to conduct multiplane reconstruction. The following parameters were recorded: width of nerve root (WN), nerve root-superior pedicle distance (NSPD), nerve root-inferior pedicle distance (NIPD), and the relationship between the intervertebral space and the nerve root (shoulder, anterior, and axillary). Additionally, the descending angles between the spinal cord and the ventral (VRA) and dorsal (DRA) rootlets were measured. Results: The WN showed a gradual increase from C4 to C7, with measurements notably larger in men compared to women. The NSPD decreased gradually from the C2–3 to the C5–6 levels. However, the NIPD showed an opposite level-related change, notably larger than the NSPD at the C4–5, C5–6, and C7–T1 levels. Furthermore, significant differences in NIPD were observed between different age groups and genders. The incidence of the anterior type exhibited a gradual decrease from the C2–3 to the C5–6 levels. Conversely, the axillary type exhibited an opposite level-related change. Additionally, the VRA and DRA decreased as the level descended, with measurements significantly larger in females. Conclusion A prediction of the positional relationship between the intervertebral space and the nerve root is essential for the direct neuroventral decompression in PECD to avoid damaging the neural structures. The axillary route of the nerve root offers a safer and more effective pathway for performing direct neuroventral decompression compared to the shoulder approach.

Objective: This study aims to investigate the anatomical relationship among the nerve roots, intervertebral space, pedicles, and intradural rootlets of the cervical spine for improving operative outcomes and exploring neuroventral decompression approach in posterior endoscopic cervical discectomy (PECD). Methods: Cervical computed tomography myelography imaging data from January 2021 to May 2023 were collected, and the RadiAnt DICOM Viewer Software was employed to conduct multiplane reconstruction. The following parameters were recorded: width of nerve root (WN), nerve root-superior pedicle distance (NSPD), nerve root-inferior pedicle distance (NIPD), and the relationship between the intervertebral space and the nerve root (shoulder, anterior, and axillary). Additionally, the descending angles between the spinal cord and the ventral (VRA) and dorsal (DRA) rootlets were measured. Results: The WN showed a gradual increase from C4 to C7, with measurements notably larger in men compared to women. The NSPD decreased gradually from the C2–3 to the C5–6 levels. However, the NIPD showed an opposite level-related change, notably larger than the NSPD at the C4–5, C5–6, and C7–T1 levels. Furthermore, significant differences in NIPD were observed between different age groups and genders. The incidence of the anterior type exhibited a gradual decrease from the C2–3 to the C5–6 levels. Conversely, the axillary type exhibited an opposite level-related change. Additionally, the VRA and DRA decreased as the level descended, with measurements significantly larger in females. Conclusion A prediction of the positional relationship between the intervertebral space and the nerve root is essential for the direct neuroventral decompression in PECD to avoid damaging the neural structures. The axillary route of the nerve root offers a safer and more effective pathway for performing direct neuroventral decompression compared to the shoulder approach.

Hemoglobin A1c (HbA1c) has a unique structure that makes monoclonal antibody (mAb) preparation challenging. This study aims to develop a method for preparing HbA1c mAbs and establish a fluorescent immunochromatographic assay (FICA) for rapid detection of HbA1c. Three glycosylated peptides were synthesized and used to prepare complete antigens, which were identified by dot enzyme-linked immunosorbent assay (Dot-ELISA) and ultraviolet absorption spectroscopy. The complete antigens and natural HbA1c were used for cross-immunization of mice, and the optimal complete antigen was selected. The mouse with the highest serum titer was chosen for mAb preparation. The purity and specificity of the mAbs were verified, and a FICA method was developed. The optimal complete antigen, with a titer of 1:512 000, was successfully prepared and selected. Fusion with splenocytes resulted in four specific HbA1c antibodies (purity > 90%). The best antibody exhibited a binding constant (Ka) of 1.67×10¹⁰ L/mol with the antigen. Based on this antibody, a FICA method was successfully established, capable of producing results within 15 min. The method demonstrated a good linear range (3%-13% HbA1c, y=0.071 3x+0.005 6, R²=0.993 7), recovery rates of 98%-102%, precision < 10.00%, and no nonspecific reactions. Clinical testing of 210 samples showed positive agreement of 96.36%, negative agreement of 97.00%, and overall agreement of 96.68%. The receiver operating characteristic (ROC) curve analysis yielded an area under curve (AUC) of 0.980 9 [95% confidence interval (CI): 0.961 0-1.000 0], with high consistency verified in multicenter studies. We successfully developed a key technique for preparing HbA1c monoclonal antibodies and established a FICA method for rapid detection of HbA1c. It will provide an efficient and convenient detection method for the early diagnosis and long-term management of diabetes and its complications.
Antibodies, Monoclonal/biosynthesis* ; Animals ; Mice ; Glycated Hemoglobin/immunology* ; Mice, Inbred BALB C ; Humans ; Antibody Specificity ; Chromatography, Affinity/methods* ; Enzyme-Linked Immunosorbent Assay/methods* ; Female

Objective To investigate the regulatory mechanism of apurnic/apyrimidinic endonuclease 1(APE1)in the transformation of chronic intestinal inflammation to colitis-associated colorectal cancer(CAC).Methods C64S mutant(APE1C64S)mice and APE1 wild type(APE1WT)mice were randomly divided into experimental group and control group.In vivo CAC model was established by azoxymethane(AOM)and dextran sulfate sodium salt(DSS)solution.Immunohistochemistry(IHC)and multiple IHC(mIHC)assays were used to observe the expression of APE1 and immune cell infiltration in colon tissues of each group.A mouse colon cancer cell line MC38 with stable knockdown of APE1 was constructed by lentivirus transfection,and subcutaneous tumor bearing experiments were performed in APE1WT and APE1C64S mice to confirm that tumor cell-derived APE1 caused immunosuppressive tumor microenvironment.The expression of APE1 and CXCL1[chemokine(C-X-C motif)ligand 1]and the infiltration of immune cells in tumor-bearing specimens were analyzed by IHC and mIHC assays.The tumor specimens of a 28-year-old female patient with CAC from Army Medical Center of PLA were analyzed for the expression of APE1 and CXCL1 and the infiltration of immune cells in the tumor and adjacent inflammatory tissues by IHC and mIHC assays.Results Compared with the control group and APE1WT erperimental group,APE1C64S erperimental group had significantly reduced disease activity index and tumor formation,polymorphonuclear myeloid-derived suppressor cells(PMN-MDSCs)infiltration,and CD4+and CD8+T cells(P＜0.05).No significant differences were observed in tumor growth and immune cells between APE1WT and APE 1C64S mice bearing subcutaneous tumors.However,in the tumor-bearing experiment using tumor cells with knockdown of APE1,the tumor growth was significantly lower and the number of infiltrated PMN-MDSCs was reduced,while those of CD4+and CD8+T cells were significantly increased(P＜0.05).Furthermore,high expression of APE1 and increased infiltration of PMN-MDSCs were found in the tumor tissues of the young CAC patient,and CD8+T cells were significantly reduced in the tumor tissues compared with the inflammatory tissues(P＜0.05).Conclusion APE1-redox in tumor cells can promote the infiltration of PMN-MDSCs and reduce the number of T cells,thereby forming an immunosuppressive tumor microenvironment and mediating the occurrence and development of CAC.

Industry serves as the main body and driving force of national economy.The high quality of the urban industrial economy depends on the role of health resources in maintaining the health of the workforce population.It analyzes the allocation of health resources in typical cities ranked within the top 10 in terms of industrial added value,identifies prevailing the new situation facing the allocation of health resources,and puts forward suggestions.It is found that health resources supporting high-quality development of urban industrial economy is currently facing the main situations of population increase and decrease differentiation within the city,more frequent cross-regional medical treatment,and accelerated aging trend of labor force.