1.Presenting characteristics, histological subtypes and outcomes of adult central nervous system tumours: retrospective review of a surgical cohort.
Mervyn Jun Rui LIM ; Yilong ZHENG ; Sean Wai-Onn ENG ; Celest Wen Ting SEAH ; Shuning FU ; Lucas Zheng Long LAM ; Joel Yat Seng WONG ; Balamurugan VELLAYAPPAN ; Andrea Li-Ann WONG ; Kejia TEO ; Vincent Diong Weng NGA ; Sein LWIN ; Tseng Tsai YEO
Singapore medical journal 2025;66(10):545-550
INTRODUCTION:
The most recent local study on the incidence of histological subtypes of all brain and spinal tumours treated surgically was published in 2000. In view of the outdated data, we investigated the presenting characteristics, histological subtypes and outcomes of adult patients who underwent surgery for brain or spinal tumours at our institution.
METHODS:
A single-centre retrospective review of 501 patients who underwent surgery for brain or spinal tumours from 2016 to 2020 was conducted. The inclusion criteria were (a) patients who had a brain or spinal tumour that was histologically verified and (b) patients who were aged 18 years and above at the time of surgery.
RESULTS:
Four hundred and thirty-five patients (86.8%) had brain tumours and 66 patients (13.2%) had spinal tumours. Patients with brain tumours frequently presented with cranial nerve palsy, headache and weakness, while patients with spinal tumours frequently presented with weakness, numbness and back pain. Overall, the most common histological types of brain and spinal tumours were metastases, meningiomas and tumours of the sellar region. The most common complications after surgery were cerebrospinal fluid leak, diabetes insipidus and urinary tract infection. In addition, 15.2% of the brain tumours and 13.6% of the spinal tumours recurred, while 25.7% of patients with brain tumours and 18.2% of patients with spinal tumours died. High-grade gliomas and metastases had the poorest survival and highest recurrence rates.
CONCLUSION
This study serves as a comprehensive update of the epidemiology of brain and spinal tumours and could help guide further studies on brain and spinal tumours.
Humans
;
Retrospective Studies
;
Female
;
Male
;
Middle Aged
;
Adult
;
Aged
;
Central Nervous System Neoplasms/pathology*
;
Brain Neoplasms/pathology*
;
Treatment Outcome
;
Postoperative Complications
;
Young Adult
;
Spinal Neoplasms/pathology*
;
Neoplasm Recurrence, Local
;
Aged, 80 and over
;
Adolescent
2.Clinical efficacy of separation surgery in treating spinal metastases accompanied by neurological symptoms.
Qiang WANG ; Min-Hao LU ; Xing-Wu WANG ; Ming FANG ; Wu-Liang YU ; Jian-Meng LU
China Journal of Orthopaedics and Traumatology 2025;38(2):157-163
OBJECTIVE:
To explore the safety and effectiveness of separation surgery in patients with neurological symptoms of spinal metastases.
METHODS:
From January 2020 to December 2022, 14 patients with neurological symptoms of spinal metastases underwent separation surgery, including 7 males and 7 females, aged from 30 to 76 years old with an average of (61.57±12.16) years old. In comparison with eleven patients underwent conservative treatment during the same period, including 6 males and 5 femals, aged from 46 to 88 years old with an average of (66.55±12.32) years old. The changes in visual analogue scale (VAS), Frankel grades, Karnofsky scores, and quality of life score (QOL) before and after treatment were compared between two groups.
RESULTS:
Fourteen patients in the separation surgery group underwent surgery successfully, with surgery time of (218.57±50.00) minutes and intraoperative blood loss of (864.29±332.97) ml, 2 patients developed delayed hematoma and recovered well finally after emergency surgery, the follow-up time was 3 to 36 months, after separation surgery, the pain was significantly relieved, and neurological function recovered well in the patients. Three months after treatment, the VAS in the separation surgery group (1.43±0.76) scores was significantly lower than that in the conservative treatment group (8.64±0.51) scores (P<0.05);and the Frankel grades, Karnofsky scores, and QOL scores in the separation surgery group were significantly better than those in the conservative treatment group(P<0.05).
CONCLUSION
For patients with obvious neurological symptoms of spinal metastases, separation surgery not only can rapidly relieve nerve compression but also carry relatively low surgical risks, and improve the quality of life of patients.
Humans
;
Female
;
Male
;
Middle Aged
;
Aged
;
Spinal Neoplasms/complications*
;
Adult
;
Aged, 80 and over
;
Quality of Life
3.Mas-related gene C (MrgC) receptor activation induced inhibition of neurochemical alterations in the spinal dorsal horn and dorsal root ganglia in a rat model of bone cancer pain.
Jian-Ping JIANG ; Ke ZHANG ; Fen-Juan HU ; Yan-Guo HONG
Acta Physiologica Sinica 2024;76(6):953-969
Cancer pain is one of the most common symptoms in patients with advanced cancer. In this study, we aimed to investigate the effects of the Mas-related gene C (MrgC) receptors on bone cancer pain. Mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) were measured after the inoculation of Walker 256 mammary gland carcinoma cells into the tibia of adult Sprague-Dawley rats. The effects of MrgC receptor agonist bovine adrenal medulla 8-22 (BAM8-22) on nociceptive behaviors were investigated after intrathecal injection on days 16 and 17. Glial fibrillary acidic protein (GFAP)-positive cells in the spinal dorsal cord, and calcitonin gene related peptide (CGRP)-, neuronal nitric oxide synthase (nNOS)- and IL-1β-positive neurons in the dorsal root ganglia (DRG) were examined by immunofluorescence staining. The expression of nNOS and IL-1β proteins in the spinal dorsal horn and the DRG was examined by Western blotting after treatment with (Tyr6)-γ2-MSH-6-12 (MSH), which was another MrgC receptor agonist. The results showed that intrathecal injection of BAM8-22 (30 nmol) attenuated mechanical allodynia in a rat model of bone cancer pain and the effects could last for about 60 min, and single administration of BAM8-22 for two consecutive days reduced mechanical allodynia by about half on the third day. Moreover, the number of GFAP-positive cells in the spinal dorsal horn, and the number of CGRP-, nNOS- and IL-1β-positive neurons in the DRG were decreased. Similarly, intrathecal administration of MSH (15 nmol) reduced the expression of nNOS and IL-1β in the spinal dorsal horn and the DRG. In conclusion, activation of MrgC receptors suppresses the activation of astrocytes in the spinal dorsal cord and the expression of CGRP, nNOS, and IL-1β in the spinal dorsal cord and/or DRG, which may underlie the inhibition of bone cancer pain. These findings provide a novel strategy for the treatment of bone cancer pain.
Animals
;
Cancer Pain/drug therapy*
;
Rats
;
Rats, Sprague-Dawley
;
Bone Neoplasms/complications*
;
Ganglia, Spinal/metabolism*
;
Spinal Cord Dorsal Horn/metabolism*
;
Receptors, G-Protein-Coupled/genetics*
;
Female
;
Calcitonin Gene-Related Peptide/genetics*
;
Interleukin-1beta/metabolism*
;
Peptide Fragments/metabolism*
;
Nitric Oxide Synthase Type I/genetics*
;
Disease Models, Animal
5.Early intervention of bone-nearby acupuncture combined with electroacupuncture on morphine tolerance in bone cancer pain rats and its effect on the expression of HDAC and MOR in dorsal root ganglia.
Xue-Mei ZHONG ; Jun-Fan FANG ; Bin JIANG ; Jie ZHOU ; Yang-Qian CAI ; Yi LIANG ; Jian-Qiao FANG ; Feng CHEN ; Jun-Ying DU
Chinese Acupuncture & Moxibustion 2020;40(4):405-410
OBJECTIVE:
To observe the effect of early intervention of bone-nearby acupuncture (BNA) combined with electroacupuncture (EA) on the expression of histone deacetylase1(HDAC1), histone deacetylase 2 (HDAC2) andμ-opioid recepter (MOR) in dorsal root ganglia (DRG) of bone cancer pain-morphine tolerance (BCP-MT) rats, and to explore its possible mechanism.
METHODS:
A total of 35 SD rats were randomized into a sham BCP group (=6), a BCP group (=7), a MT group (=7), a BNA+EA group (=8) and a shame BNA group (=7). Except of the sham BCP group, cancer cell inoculation operation at left tibia was given in the other 4 groups to establish the bone cancer pain model. In the MT group, the BNA+EA group and the shame BNA group, intraperitoneal injection of morphine hydrochloride was given to establish the morphine tolerance model. After the operation, bone-nearby acupuncture combined with electroacupuncture was applied at "Zusanli" (ST 36) and "Kunlun" (BL 60) in the BNA+EA group, with dilatational wave, 2 Hz/100 Hz in frequency, 0.5 to 1.5 mA in intensity. Intervention in the shame BNA group was applied at the same time and acupoints as those in the BNA+EA group, the needles were pierced the skin without any electrical stimulation. The needles were retained for 30 min, once a day for continuous 7 days in both BNA+EA and shame BNA groups. Before and 10, 11, 15, 22 days after the operation, the left paw withdrawal threshold (PWT) was measured in the 5 groups. The levels of HDAC1, HDAC2 and MOR in DRG were detected by Western blot.
RESULTS:
Ten days after the cancer cell inoculation operation, the PWT of the BCP, MT, BNA+EA and sham BNA groups was decreased compared with the sham BCP group (<0.01). Eleven days after the operation, the PWT of the MT, BNA+EA and sham BNA groups was increased compared with the BCP group (<0.01). Twenty-two days after the operation, the difference was no significant between the BCP group and MT group (>0.05); the PWT of the BNA+EA group was increased compared with the MT and sham BNA group (<0.01). In the BCP group, the DRG levels of HDAC1 and HDCA2 were increased, while the level of MOR was decreased compared with the sham BCP group (<0.05, <0.01). In the MT group, the DRG level of HDAC1 was increased compared with the BCP group (<0.05). In the BNA+EA group, the DRG level of HDAC1 was decreased compared with the MT group and the sham BNA group (<0.01, <0.05), while the level of MOR was increased (<0.01).
CONCLUSION
Early intervention of bone-nearby acupuncture combined with electroacupuncture can relieve the morphine tolerance in bone cancer pain rats, it may relate to down-regulating the expression of HDAC1 and up-regulating the expression of MOR in the dorsal root ganglia.
Acupuncture Points
;
Animals
;
Bone Neoplasms
;
complications
;
Cancer Pain
;
therapy
;
Drug Tolerance
;
Electroacupuncture
;
Ganglia, Spinal
;
metabolism
;
Histone Deacetylases
;
metabolism
;
Morphine
;
Random Allocation
;
Rats
;
Rats, Sprague-Dawley
;
Receptors, Opioid, mu
;
metabolism
6.Epidemiology regarding penile prosthetic surgery.
Jose A SAAVEDRA-BELAUNDE ; Jonathan CLAVELL-HERNANDEZ ; Run WANG
Asian Journal of Andrology 2020;22(1):2-7
With the onset of a metabolic syndrome epidemic and the increasing life expectancy, erectile dysfunction (ED) has become a more common condition. As incidence and prevalence increase, the medical field is focused on providing more appropriate therapies. It is common knowledge that ED is a chronic condition that is also associated with a myriad of other disorders. Conditions such as aging, diabetes mellitus, hypertension, obesity, prostatic hypertrophy, and prostate cancer, among others, have a direct implication on the onset and progression of ED. Characterization and recognition of risk factors may help clinicians recognize and properly treat patients suffering from ED. One of the most reliable treatments for ED is penile prosthetic surgery. Since the introduction of the penile prosthesis (PP) in the early seventies, this surgical procedure has improved the lives of thousands of men, with reliable and satisfactory results. The aim of this review article is to characterize the epidemiology of men undergoing penile prosthetic surgery, with a discussion about the most common conditions involved in the development of ED, and that ultimately drive patients into electing to undergo PP placement.
Diabetes Complications/surgery*
;
Diabetes Mellitus/epidemiology*
;
Erectile Dysfunction/surgery*
;
Humans
;
Hypertension
;
Impotence, Vasculogenic/surgery*
;
Male
;
Pelvic Bones/injuries*
;
Penile Implantation/statistics & numerical data*
;
Penile Induration/surgery*
;
Penile Prosthesis
;
Penis/injuries*
;
Prostatectomy/adverse effects*
;
Prostatic Neoplasms/surgery*
;
Radiation Injuries/surgery*
;
Radiotherapy/adverse effects*
;
Reoperation
;
Spinal Cord Injuries/epidemiology*
;
Vascular Diseases/epidemiology*
;
Wounds and Injuries/epidemiology*
7.Intrathecal injection of AG-490 reduces bone-cancer-induced spinal cord astrocyte reaction and thermal hyperalgesia in a mouse model.
Jiannan ZHANG ; Bingxu REN ; Kun NI ; Yue LIU ; Zhengliang MA
Journal of Central South University(Medical Sciences) 2018;43(11):1182-1187
To investigate the role of spinal interleukin-6-Janus kinase 2 (IL-6-JAK2) signaling transduction pathway in regulating astrocytes activation during the maintenance of bone cancer pain (BCP).
Methods: NCTC 2472 fibrosarcoma cells were injected into the femur marrow cavity in C3H/HeNCrlVr male mice to establish BCP model and they were replaced by the equal volume of α-MEM in the sham model. The paw withdrawal latency (PWL) was measured after inoculation of tumor cells. The lumbar enlargement of spinal cord (L3-L5) was isolated, and Real-time RT-PCR and Western blot were used to detect the expression of spinal glial fibrillary acidic protein (GFAP) and JAK2 mRNA and protein, respectively. The expression level of spinal GFAP mRNA indirectly reflect astrocytes activation level. Pain behaviors and spinal cord GFAP mRNA and protein expression were observed at the given time points after intrathecal administration of JAK2 antagonist AG-490.
Results: The PWL at 10, 14, 21 d after operation in BCP model group were significantly shorter than that in the sham group (P<0.05); the spinal GFAP and JAK2 mRNA and protein levels were higher in the BCP model group in comparison to mice in the sham group (P<0.05); intrathecal injection of JAK2 agonist AG-490 (30 or 90 nmol) significantly alleviated PWL, and downregulated the expression of spinal GFAP mRNA and protein (P<0.05).
Conclusion: The IL-6-JAK2 signaling pathway plays an important role in maintaining the BCP by regulating the expression of GFAP in the spinal cord. Intrathecal injection of AG-490 can reduce the BCP, and inhibit the activation of IL-6-JAK2 signaling pathway, which may be one of the mechanisms for spinal astrocyte activation.
Animals
;
Astrocytes
;
pathology
;
Bone Neoplasms
;
complications
;
Hyperalgesia
;
drug therapy
;
etiology
;
Injections, Spinal
;
Male
;
Mice
;
Mice, Inbred C3H
;
Rats, Sprague-Dawley
;
Spinal Cord
;
cytology
;
pathology
;
Tyrphostins
;
administration & dosage
8.Intraoperative Neurophysiological Monitoring for Spinal Cord Tumor Surgery: Comparison of Motor and Somatosensory Evoked Potentials According to Tumor Types.
Taeha PARK ; Jinyoung PARK ; Yoon Ghil PARK ; Joowon LEE
Annals of Rehabilitation Medicine 2017;41(4):610-620
OBJECTIVE: To identify which combination of motor evoked potentials (MEPs) and somatosensory evoked potentials (SEPs) is most reliable for postoperative motor deterioration during spinal cord tumor surgery, according to anatomical and pathologic type. METHODS: MEPs and SEPs were monitored in patients who underwent spinal cord tumor surgery between November 2012 and August 2016. Muscle strength was examined in all patients before surgery, within 48 hours postoperatively and 4 weeks later. We analyzed sensitivity, specificity, positive and negative predictive values of each significant change in SEPs and MEPs. RESULTS: The overall sensitivity and specificity of SEPs or MEPs were 100% and 61.3%, respectively. The intraoperative MEP monitoring alone showed both higher sensitivity (67.9%) and specificity (83.2%) than SEP monitoring alone for postoperative motor deterioration. Two patients with persistent motor deterioration had significant changes only in SEPs. There are no significant differences in reliabilities between anatomical types, except with hemangioma, where SEPs were more specific than MEPs for postoperative motor deterioration. Both overall positive and negative predictive values of MEPs were higher than the predictive values of SEPs. However, the positive predictive value was higher by the dual monitoring of MEPs and SEPs, compared to MEPs alone. CONCLUSION: For spinal cord tumor surgery, combined MEP and SEP monitoring showed the highest sensitivity for the postoperative motor deterioration. Although MEPs are more specific than SEPs in most types of spinal cord tumor surgery, SEPs should still be monitored, especially in hemangioma surgery.
Evoked Potentials, Motor
;
Evoked Potentials, Somatosensory*
;
Hemangioma
;
Humans
;
Intraoperative Neurophysiological Monitoring*
;
Muscle Strength
;
Postoperative Complications
;
Sensitivity and Specificity
;
Spinal Cord Neoplasms*
;
Spinal Cord*
9.Fluorodeoxyglucose-positron emission tomography/computed tomography imaging of squamous cell carcinoma arising in a meningomyelocele.
Seval ERHAMAMCI ; Mehmet REYHAN ; Nebil BAL
The Korean Journal of Internal Medicine 2016;31(2):411-412
No abstract available.
Adult
;
Biopsy
;
Carcinoma, Squamous Cell/complications/*diagnostic imaging/pathology
;
Female
;
*Fluorodeoxyglucose F18
;
Humans
;
Meningomyelocele/*complications/diagnosis
;
*Positron Emission Tomography Computed Tomography
;
Predictive Value of Tests
;
*Radiopharmaceuticals
;
Spinal Neoplasms/complications/*diagnostic imaging/pathology
10.JNK in spinal cord facilitates bone cancer pain in rats through modulation of CXCL1.
Zhong-liang WANG ; Ting-ting DU ; Rui-guang ZHANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2016;36(1):88-94
In patients with advanced cancer, cancer-induced bone pain (CIBP) is a severe and common problem that is difficult to manage and explain. As c-Jun N-terminal kinase (JNK) and chemokine (C-X-C motif) ligand 1 (CXCL1) have been shown to participate in several chronic pain processes, we investigated the role of JNK and CXCL1 in CIBP and the relationship between them. A rat bone cancer pain model was established by intramedullary injection of Walker 256 rat gland mammary carcinoma cells into the left tibia of Sprague-Dawley rats. As a result, intramedullary injection of Walker 256 carcinoma cells induced significant bone destruction and persistent pain. Both phosphorylated JNK1 (pJNK1) and pJNK2 showed time-dependent increases in the ipsilateral spinal cord from day 7 to day 18 after tumor injection. Inhibition of JNK activation by intrathecal administration of SP600125, a selective pJNK inhibitor, attenuated mechanical allodynia and heat hyperalgesia caused by tumor inoculation. Tumor cell inoculation also induced robust CXCL1 upregulation in the ipsilateral spinal cord on day 18 after tumor injection. Inhibition of CXCL1 by intrathecal administration of CXCL1 neutralizing antibody showed a stable analgesic effect. Intrathecal administration of SP600125 reduced CXCL1 increase in the spinal cord, whereas inhibition of CXCL1 in the spinal cord showed no influence on JNK activation. Taken together, these results suggested that JNK activation in spinal cord contributed to the maintenance of CIBP, which may act through modulation of CXCL1. Inhibition of the pJNK/CXCL1 pathway may provide a new choice for treatment of CIBP.
Animals
;
Antibodies, Neutralizing
;
immunology
;
therapeutic use
;
Bone Neoplasms
;
complications
;
metabolism
;
Cancer Pain
;
drug therapy
;
etiology
;
metabolism
;
Cell Line, Tumor
;
Chemokine CXCL1
;
immunology
;
metabolism
;
Female
;
JNK Mitogen-Activated Protein Kinases
;
antagonists & inhibitors
;
metabolism
;
Protein Kinase Inhibitors
;
pharmacology
;
therapeutic use
;
Rats
;
Rats, Sprague-Dawley
;
Spinal Cord
;
metabolism

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