Pediatric origin of cancer stem cell hypothesis holds great promise and potential in adult cancer treatment, however; the road to innovation is full of obstacles as there are plenty of questions left unanswered. First...Pediatric origin of cancer stem cell hypothesis holds great promise and potential in adult cancer treatment, however; the road to innovation is full of obstacles as there are plenty of questions left unanswered. First, the key question is to characterize the nature of such stem cells (concept). Second, the quantitative imaging of pediatric stem cells should be implemented(technology). Conceptually, pediatric stem cell origins of adult cancer are based on the notion that plasticity in early life developmental programming evolves local environments to cancer. Technologically, such imaging in children is lacking as all imaging is designed for adult patients. We postulate that the need for quantitative imaging to measure space-time changes of plasticity in early life developmental programming in children may trigger research and development of the imaging technology. Such quantitative imaging of pediatric origin of adulthood cancer will help develop a spatiotemporal monitoring system to determine cancer initiation and progression. Clinical validation of such speculative hypothesis-that cancer originates in a pediatric environment-will help implement a wait-andwatch strategy for cancer treatment.展开更多
The occurrence of adult intussusception arising from colorectal cancer is quite rare. We present the case of a 76-year-old man with sudden abdominal pain and vomiting. Clinical symptoms included severe abdominal diste...The occurrence of adult intussusception arising from colorectal cancer is quite rare. We present the case of a 76-year-old man with sudden abdominal pain and vomiting. Clinical symptoms included severe abdominal distension and tenderness. Computed tomography scan of the abdomen revealed left-sided colocolic intussusception with a lead point. The patient underwent a left hemicolectomy with right transverse colostomy. Pathologic evaluation revealed moderately differentiated adenocarcinoma invading the muscularis propria; the regional lymph nodes were negative for cancer cells. The postoperative course was uneventful.展开更多
Introduction: since its creation, our urology department has taken care of tumor pathologies in particular kidney cancer in adults;our goal is to study the clinical and therapeutic epidemiological profiles of adult ki...Introduction: since its creation, our urology department has taken care of tumor pathologies in particular kidney cancer in adults;our goal is to study the clinical and therapeutic epidemiological profiles of adult kidney cancer in Mauritania. Materials and Methods: We carried out a retrospective study over a period of six years, from January 1, 2012 to December 31, 2017, including all cases of adult kidney cancer registered in the urology-andrology departments of the Cheikh Zayed Hospital and Pathological Anatomy of the National Hospital of Nouakchott (Mauritania). Results: we collected 50 cases of kidney cancer. The average annual incidence was 8.3 cases. The average age of the patients was 52.98 years with extremes of 18 and 84 years. There was a female predominance (52%) or 29 women for 21 men. Lumbar pain was the most frequent clinical expression, more than half of the patients had symptoms over a period of at least 12 months before the first consultation. The left kidney was the most frequently affected. The right localization was demonstrated in 23 patients, the extension assessment was made with thoraco-abdomino-pelvic CT in 40 patients. Twelve patients had a tumor localized in the kidney. The extension assessment had made it possible to objectify the existence of metastases in 17 of our patients (37%). The preferred locations of these metastases were pulmonary and hepatic. Surgical intervention was performed in 44 patients (88%), of whom 36 underwent radical nephrectomy (72%), and two patients underwent partial nephrectomy (4.5%). Surgical abstention was decided from the outset in 6 patients (13.6%). None of our patients had received treatment with anti-angiogenics. The histological type most observed in our patients was renal cell carcinoma, observed in 34 patients, or 77.72%. At the time of the study, more than a third of the patients had died. The mortality rate in our series had reached 24%. A specific survival rate could not be assessed due to lack of information in the files and significant numbers of patients lost to follow-up at the time of the study. Conclusion: adult kidney cancer in Mauritania is characterized by its low incidence, its occurrence in a relatively young population, its female predominance, its often late diagnosis at locally advanced and metastatic stages, and the treatment is the most often surgical.展开更多
Background: Recent studies show increasing prostate cancer incidence in Nigeria. Significant correlations identified between diet and prostate cancer occurrence, indicate that low antioxidant status could contribute t...Background: Recent studies show increasing prostate cancer incidence in Nigeria. Significant correlations identified between diet and prostate cancer occurrence, indicate that low antioxidant status could contribute to the aetiology of prostate cancer. Methods: This cross-sectional study determined selected antioxidants (lycopene, beta-carotene and retinol) status of 10 (Experimental group) and 17 (Control) male adults with and without PC, recruited from the Urological Section of the Surgical Out-patients’ Department, University College Hospital and the General Out-patient Clinic of the Ring Road State Hospital, Ibadan, Oyo State, Nigeria. Demographic characteristics were assessed using a semi-structured, interviewer-administered questionnaire. Daily antioxidant intakes were assessed and analyzed using 24-hour dietary recall, and an adapted version of the food database “Total Diet Assessment”. Serum lycopene, beta-carotene and retinol were determined using High Performance Liquid Chromatography. Results: The mean age of the PC and the control (72.8 ± 6.2 years and 59.8 ± 4.8 years) was significantly different (p = 0.001). Mean daily lycopene intake (1408.4 ± 233.2 μg) of the PC was significantly lower (P = 0.030) than the controls (3862.3±316.2μg). The mean serum lycopene (19.8 ± 13.2 ng/ml), beta-carotene (43.6 ± 26.0 ng/ml) and retinol (362.2 ± 304.3ng/ml) of the PC were significantly lower (p = 0.008, 0.040 and 0.033 respectively) than the values (70.8 ± 49.8 ng/ml, 57.6 ± 47.7 ng/ml and 395.4 ± 275.6 ng/ml respectively) of the controls. Significant inverse correlations were observed between the dietary lycopene intake (r = -0.396, p = 0.041) and serum lycopene (r =-0.502, p = 0.008) with PC;while a significant positive association was observed between dietary intake of retinol with PC (r = 0.394, p = 0.042). Conclusion: The study has revealed low anti-oxidant status, and an inverse association between lycopene status and prostate cancer in the elderly men.展开更多
Purpose: This study aimed to identify specifics of self-management towards dealing with cancer pains among adult outpatients. Methods: Semi-structured interviews were conducted with 16 adult outpatients (9 males and 7...Purpose: This study aimed to identify specifics of self-management towards dealing with cancer pains among adult outpatients. Methods: Semi-structured interviews were conducted with 16 adult outpatients (9 males and 7 females) who suffered from cancer pain and the data obtained were analyzed using the qualitative synthesis method of KJ Ho. Results: An analysis of the results revealed these key findings for the following symbolic wording of the semi-structured interviews: Cooperative relationship with medical professionals;Problems originating from cancer pain;Self-regulation of analgesic medications based on the interactions with medical professionals;Self-regulation of the analgesic medications based on the physical perceptions of the effects;Self-regulation to maintain a balanced and calm mind, Fulfilling life by the pain alleviation and liberation from the restrictions imposed by the cancer;and Efforts to maintain their lives by themselves. Conclusion: Based on the cooperative relationship established with medical professionals, the patient carried out the self-regulation of cancer pain using analgesics, and self-regulation to maintain a balanced and calm mind. Nurses must therefore sufficiently educate patients regarding how to communicate successfully with medical professionals in order to improve cancer patients’ pain management regarding both physical and mental aspects.展开更多
The study of the relationship between trace element and health and disease has attracted more and more interests of scientists. As well known there exist complex interaction between the trace elements, and the trace e...The study of the relationship between trace element and health and disease has attracted more and more interests of scientists. As well known there exist complex interaction between the trace elements, and the trace elements and other substances, so the trace element research must be involved to the com-prehensive effect of multifactors, other than single element. We determined the contents of fifteen trace elements in serum from thirty patients with liver cancer and thirty healthy adults by ICP-AES analysis. The obtained data were analysed statistically by not only routine statistical test bat also multi-variate discrimination analysis, multi-variate stepwise regression and non-linear mapping algorithm. It is hoped that it can provide some valuable informations for investigation on relationship betwecn trace elements and cancer.展开更多
The growth hormone (GH) replacement therapy in adult growth hormone deficiency (AGHD) is now well developed, nevertheless, the safety of GH replacement, especially the incidence of cancer in these patients remains to ...The growth hormone (GH) replacement therapy in adult growth hormone deficiency (AGHD) is now well developed, nevertheless, the safety of GH replacement, especially the incidence of cancer in these patients remains to be further clarified. To summarize the evidence on the safety of using GH in AGHD, we conduct this meta-analysis to assess the relationship between the risk of cancer and GH replacement therapy. Randomized controlled trials and cohort studies involved in GH therapy for AGHD were selected. Meta-analysis was performed and risk ratio (RR) was pooled with 95% confidence interval (CI) to investigate the relationship between GH replacement and the risk of cancer. The result indicated that there was no evidence to draw a conclusion that GH replacement therapy will increase the risk of cancer (P = 0.001, RR = 0.77, 95% CI [0.65, 0.90]). Meanwhile, according to the calculated analysis, the replacement therapy might even reduce the risk of cancer. Furthermore, subgroup analysis demonstrated that there was no correlation between replacement therapy of GH and the risk of cancer both in prospective and retrospective cohort design research, and in prospective group, the risk of cancer even decreased (P = 0.0002, RR = 0.71, 95%CI [0.59, 0.85]). In conclusion, our study corroborates evidence from previous studies showing that GH replacement therapy in AGHD patients would not increase the risk of cancer;instead, it might be even decrease cancer risk. The results suggested that GH replacement therapy in AGHD patients was safe.展开更多
We report a case of adult intussusception caused by cecal adenocarcinoma that was treated by laparoscopyassisted ileocecal resection following reduction by contrast enema and preoperative colonoscopy.A 68-yearold male...We report a case of adult intussusception caused by cecal adenocarcinoma that was treated by laparoscopyassisted ileocecal resection following reduction by contrast enema and preoperative colonoscopy.A 68-yearold male with cecal cancer was admitted to our hospital because of colicky abdominal pain after taking a laxative.His abdomen was distended,and a mass was palpable in the right upper quadrant,which appeared as a target-or sausage-shaped lesion by ultrasonograhpy and computed tomography.A contrast enema using water-soluble material showed a cup-shaped filling defect characterized by intussusception in the ascending colon.This round defect with a clear margin was pushed gradually back into the cecum by the enema pressure.Re-occurrence of the intussusception is easilyreleased by colonoscopy.We performed laparoscopyassisted ileocecal resection of a protruding tumor measuring 6.5 cm × 5.0 cm × 3.5 cm from the cecum,with D3 lymph node dissection.Histological examination revealed a well-differentiated adenocarcinoma that had invaded the serosa without permeating the lymphatic or venous capillaries,as well as lymph node metastasis.The postoperative course was uneventful,and the patient has been well without evidence of disease recurrence for 5 years following the operation.Preliminary reduction of adult colonic intussusception before surgical resection is therefore an option in cases of an early and correct diagnosis of intussusception.展开更多
Objective: to report our experience in the management of adult kidney cancer. Patients and Methods: This was a prospective and descriptive study, carried out in the Urology Department of Gabriel Touré University ...Objective: to report our experience in the management of adult kidney cancer. Patients and Methods: This was a prospective and descriptive study, carried out in the Urology Department of Gabriel Touré University Hospital, during the period from January 1, 2001 to December 31, 2017 for a period of six years, interesting all the medical records of 24 adult patients diagnosed with kidney cancer. Results: During the study period, 24 patients met our inclusion criteria;the mean age was 48.23 ± 8.02 years with extreme ranging from 17 to 82 years. Most of our patients were female (58.3%), and were referred or consulted for lumbar mass in 66.7% of cases. The average tumor size was 13.6 ± 5.8 cm with extremes of 7.8 to 21.1 cm. Management included total nephrectomy in 50% and total nephrectomy expanded in 50% of cases. The histological type found was renal cell carcinoma in 23 patients and papillary carcinoma in one patient. Conclusion: Kidney cancer is rare in our context, its clinical and histological characteristics remain the same for two decades. Its management is largely based on enlarged total nephrectomy.展开更多
Neural stem cells (NSCs) are present not only during the embryonic development but also in the adult brain of all mammalian species, including humans. Stem cell niche architecture in vivo enables adult NSCs to conti...Neural stem cells (NSCs) are present not only during the embryonic development but also in the adult brain of all mammalian species, including humans. Stem cell niche architecture in vivo enables adult NSCs to continuously generate functional neurons in specific brain regions throughout life. The adult neurogenesis process is subject to dynamic regulation by various physiological, pathological and pharmacological stimuli. Multipotent adult NSCs also appear to be intrinsically plastic, amenable to genetic programing during normal differentiation, and to epigenetic reprograming during de-differentiation into pluripotency. Increasing evidence suggests that adult NSCs significantly contribute to specialized neural functions under physiological and pathological conditions. Fully understanding the biology of adult NSCs will provide crucial insights into both the etiology and potential therapeutic interventions of major brain disorders. Here, we review recent progress on adult NSCs of the mammalian central nervous system, including topics on their identity, niche, function, plasticity, and emerging roles in cancer and regenerative medicine.展开更多
目的:依据全球营养不良领导倡议(the global leadership initiative on malnutrition,GLIM)的营养不良诊断标准,分析成年结直肠癌住院患者营养不良与临床结局的相关性。方法:回顾性分析2019年6月—2020年12月惠州市中心人民医院确诊医治...目的:依据全球营养不良领导倡议(the global leadership initiative on malnutrition,GLIM)的营养不良诊断标准,分析成年结直肠癌住院患者营养不良与临床结局的相关性。方法:回顾性分析2019年6月—2020年12月惠州市中心人民医院确诊医治的170例成年结直肠癌住院患者临床资料,入院48 h内均接受营养状况评估,参考GLIM标准,统计全体患者营养不良发生情况,通过logistic回归分析筛选成年结直肠癌住院患者并发症发生的相关因素。结果:(1)本组170例患者中,GLIM标准评估结果显示,57例患者营养良好(33.53%),将其归在无营养不良组;113例患者存在营养不良(66.47%),将其归在营养不良组。其中无营养不良组男性、女性分别为31例、26例;年龄48~76岁,平均(62.48±5.68)岁。营养不良组男性、女性分别为62例、51例;年龄49~74岁,平均(62.25±5.82)岁。(2)客观指标比较可知,在营养风险筛查-2002评分、患者主观整体评估量表评分、血前白蛋白、血白蛋白水平、体重指数、上臂围、三头肌皮褶厚度、上臂肌围方面,营养不良组与无营养不良组之间差异均有统计学意义(P<0.05)。(3)临床结局指标比较可知,在术后并发症、住院时间、住院费用、无计划30 d内返院方面,营养不良组与无营养不良组之间差异均有统计学意义(P<0.05)。(4)logistic回归分析可知,营养不良为成年结直肠癌住院患者并发症发生的独立相关因素(P<0.05)。结论:成年结直肠癌住院患者营养不良会提高并发症风险,延长住院时间。展开更多
文摘Pediatric origin of cancer stem cell hypothesis holds great promise and potential in adult cancer treatment, however; the road to innovation is full of obstacles as there are plenty of questions left unanswered. First, the key question is to characterize the nature of such stem cells (concept). Second, the quantitative imaging of pediatric stem cells should be implemented(technology). Conceptually, pediatric stem cell origins of adult cancer are based on the notion that plasticity in early life developmental programming evolves local environments to cancer. Technologically, such imaging in children is lacking as all imaging is designed for adult patients. We postulate that the need for quantitative imaging to measure space-time changes of plasticity in early life developmental programming in children may trigger research and development of the imaging technology. Such quantitative imaging of pediatric origin of adulthood cancer will help develop a spatiotemporal monitoring system to determine cancer initiation and progression. Clinical validation of such speculative hypothesis-that cancer originates in a pediatric environment-will help implement a wait-andwatch strategy for cancer treatment.
文摘The occurrence of adult intussusception arising from colorectal cancer is quite rare. We present the case of a 76-year-old man with sudden abdominal pain and vomiting. Clinical symptoms included severe abdominal distension and tenderness. Computed tomography scan of the abdomen revealed left-sided colocolic intussusception with a lead point. The patient underwent a left hemicolectomy with right transverse colostomy. Pathologic evaluation revealed moderately differentiated adenocarcinoma invading the muscularis propria; the regional lymph nodes were negative for cancer cells. The postoperative course was uneventful.
文摘Introduction: since its creation, our urology department has taken care of tumor pathologies in particular kidney cancer in adults;our goal is to study the clinical and therapeutic epidemiological profiles of adult kidney cancer in Mauritania. Materials and Methods: We carried out a retrospective study over a period of six years, from January 1, 2012 to December 31, 2017, including all cases of adult kidney cancer registered in the urology-andrology departments of the Cheikh Zayed Hospital and Pathological Anatomy of the National Hospital of Nouakchott (Mauritania). Results: we collected 50 cases of kidney cancer. The average annual incidence was 8.3 cases. The average age of the patients was 52.98 years with extremes of 18 and 84 years. There was a female predominance (52%) or 29 women for 21 men. Lumbar pain was the most frequent clinical expression, more than half of the patients had symptoms over a period of at least 12 months before the first consultation. The left kidney was the most frequently affected. The right localization was demonstrated in 23 patients, the extension assessment was made with thoraco-abdomino-pelvic CT in 40 patients. Twelve patients had a tumor localized in the kidney. The extension assessment had made it possible to objectify the existence of metastases in 17 of our patients (37%). The preferred locations of these metastases were pulmonary and hepatic. Surgical intervention was performed in 44 patients (88%), of whom 36 underwent radical nephrectomy (72%), and two patients underwent partial nephrectomy (4.5%). Surgical abstention was decided from the outset in 6 patients (13.6%). None of our patients had received treatment with anti-angiogenics. The histological type most observed in our patients was renal cell carcinoma, observed in 34 patients, or 77.72%. At the time of the study, more than a third of the patients had died. The mortality rate in our series had reached 24%. A specific survival rate could not be assessed due to lack of information in the files and significant numbers of patients lost to follow-up at the time of the study. Conclusion: adult kidney cancer in Mauritania is characterized by its low incidence, its occurrence in a relatively young population, its female predominance, its often late diagnosis at locally advanced and metastatic stages, and the treatment is the most often surgical.
文摘Background: Recent studies show increasing prostate cancer incidence in Nigeria. Significant correlations identified between diet and prostate cancer occurrence, indicate that low antioxidant status could contribute to the aetiology of prostate cancer. Methods: This cross-sectional study determined selected antioxidants (lycopene, beta-carotene and retinol) status of 10 (Experimental group) and 17 (Control) male adults with and without PC, recruited from the Urological Section of the Surgical Out-patients’ Department, University College Hospital and the General Out-patient Clinic of the Ring Road State Hospital, Ibadan, Oyo State, Nigeria. Demographic characteristics were assessed using a semi-structured, interviewer-administered questionnaire. Daily antioxidant intakes were assessed and analyzed using 24-hour dietary recall, and an adapted version of the food database “Total Diet Assessment”. Serum lycopene, beta-carotene and retinol were determined using High Performance Liquid Chromatography. Results: The mean age of the PC and the control (72.8 ± 6.2 years and 59.8 ± 4.8 years) was significantly different (p = 0.001). Mean daily lycopene intake (1408.4 ± 233.2 μg) of the PC was significantly lower (P = 0.030) than the controls (3862.3±316.2μg). The mean serum lycopene (19.8 ± 13.2 ng/ml), beta-carotene (43.6 ± 26.0 ng/ml) and retinol (362.2 ± 304.3ng/ml) of the PC were significantly lower (p = 0.008, 0.040 and 0.033 respectively) than the values (70.8 ± 49.8 ng/ml, 57.6 ± 47.7 ng/ml and 395.4 ± 275.6 ng/ml respectively) of the controls. Significant inverse correlations were observed between the dietary lycopene intake (r = -0.396, p = 0.041) and serum lycopene (r =-0.502, p = 0.008) with PC;while a significant positive association was observed between dietary intake of retinol with PC (r = 0.394, p = 0.042). Conclusion: The study has revealed low anti-oxidant status, and an inverse association between lycopene status and prostate cancer in the elderly men.
文摘Purpose: This study aimed to identify specifics of self-management towards dealing with cancer pains among adult outpatients. Methods: Semi-structured interviews were conducted with 16 adult outpatients (9 males and 7 females) who suffered from cancer pain and the data obtained were analyzed using the qualitative synthesis method of KJ Ho. Results: An analysis of the results revealed these key findings for the following symbolic wording of the semi-structured interviews: Cooperative relationship with medical professionals;Problems originating from cancer pain;Self-regulation of analgesic medications based on the interactions with medical professionals;Self-regulation of the analgesic medications based on the physical perceptions of the effects;Self-regulation to maintain a balanced and calm mind, Fulfilling life by the pain alleviation and liberation from the restrictions imposed by the cancer;and Efforts to maintain their lives by themselves. Conclusion: Based on the cooperative relationship established with medical professionals, the patient carried out the self-regulation of cancer pain using analgesics, and self-regulation to maintain a balanced and calm mind. Nurses must therefore sufficiently educate patients regarding how to communicate successfully with medical professionals in order to improve cancer patients’ pain management regarding both physical and mental aspects.
文摘The study of the relationship between trace element and health and disease has attracted more and more interests of scientists. As well known there exist complex interaction between the trace elements, and the trace elements and other substances, so the trace element research must be involved to the com-prehensive effect of multifactors, other than single element. We determined the contents of fifteen trace elements in serum from thirty patients with liver cancer and thirty healthy adults by ICP-AES analysis. The obtained data were analysed statistically by not only routine statistical test bat also multi-variate discrimination analysis, multi-variate stepwise regression and non-linear mapping algorithm. It is hoped that it can provide some valuable informations for investigation on relationship betwecn trace elements and cancer.
文摘The growth hormone (GH) replacement therapy in adult growth hormone deficiency (AGHD) is now well developed, nevertheless, the safety of GH replacement, especially the incidence of cancer in these patients remains to be further clarified. To summarize the evidence on the safety of using GH in AGHD, we conduct this meta-analysis to assess the relationship between the risk of cancer and GH replacement therapy. Randomized controlled trials and cohort studies involved in GH therapy for AGHD were selected. Meta-analysis was performed and risk ratio (RR) was pooled with 95% confidence interval (CI) to investigate the relationship between GH replacement and the risk of cancer. The result indicated that there was no evidence to draw a conclusion that GH replacement therapy will increase the risk of cancer (P = 0.001, RR = 0.77, 95% CI [0.65, 0.90]). Meanwhile, according to the calculated analysis, the replacement therapy might even reduce the risk of cancer. Furthermore, subgroup analysis demonstrated that there was no correlation between replacement therapy of GH and the risk of cancer both in prospective and retrospective cohort design research, and in prospective group, the risk of cancer even decreased (P = 0.0002, RR = 0.71, 95%CI [0.59, 0.85]). In conclusion, our study corroborates evidence from previous studies showing that GH replacement therapy in AGHD patients would not increase the risk of cancer;instead, it might be even decrease cancer risk. The results suggested that GH replacement therapy in AGHD patients was safe.
文摘We report a case of adult intussusception caused by cecal adenocarcinoma that was treated by laparoscopyassisted ileocecal resection following reduction by contrast enema and preoperative colonoscopy.A 68-yearold male with cecal cancer was admitted to our hospital because of colicky abdominal pain after taking a laxative.His abdomen was distended,and a mass was palpable in the right upper quadrant,which appeared as a target-or sausage-shaped lesion by ultrasonograhpy and computed tomography.A contrast enema using water-soluble material showed a cup-shaped filling defect characterized by intussusception in the ascending colon.This round defect with a clear margin was pushed gradually back into the cecum by the enema pressure.Re-occurrence of the intussusception is easilyreleased by colonoscopy.We performed laparoscopyassisted ileocecal resection of a protruding tumor measuring 6.5 cm × 5.0 cm × 3.5 cm from the cecum,with D3 lymph node dissection.Histological examination revealed a well-differentiated adenocarcinoma that had invaded the serosa without permeating the lymphatic or venous capillaries,as well as lymph node metastasis.The postoperative course was uneventful,and the patient has been well without evidence of disease recurrence for 5 years following the operation.Preliminary reduction of adult colonic intussusception before surgical resection is therefore an option in cases of an early and correct diagnosis of intussusception.
文摘Objective: to report our experience in the management of adult kidney cancer. Patients and Methods: This was a prospective and descriptive study, carried out in the Urology Department of Gabriel Touré University Hospital, during the period from January 1, 2001 to December 31, 2017 for a period of six years, interesting all the medical records of 24 adult patients diagnosed with kidney cancer. Results: During the study period, 24 patients met our inclusion criteria;the mean age was 48.23 ± 8.02 years with extreme ranging from 17 to 82 years. Most of our patients were female (58.3%), and were referred or consulted for lumbar mass in 66.7% of cases. The average tumor size was 13.6 ± 5.8 cm with extremes of 7.8 to 21.1 cm. Management included total nephrectomy in 50% and total nephrectomy expanded in 50% of cases. The histological type found was renal cell carcinoma in 23 patients and papillary carcinoma in one patient. Conclusion: Kidney cancer is rare in our context, its clinical and histological characteristics remain the same for two decades. Its management is largely based on enlarged total nephrectomy.
文摘Neural stem cells (NSCs) are present not only during the embryonic development but also in the adult brain of all mammalian species, including humans. Stem cell niche architecture in vivo enables adult NSCs to continuously generate functional neurons in specific brain regions throughout life. The adult neurogenesis process is subject to dynamic regulation by various physiological, pathological and pharmacological stimuli. Multipotent adult NSCs also appear to be intrinsically plastic, amenable to genetic programing during normal differentiation, and to epigenetic reprograming during de-differentiation into pluripotency. Increasing evidence suggests that adult NSCs significantly contribute to specialized neural functions under physiological and pathological conditions. Fully understanding the biology of adult NSCs will provide crucial insights into both the etiology and potential therapeutic interventions of major brain disorders. Here, we review recent progress on adult NSCs of the mammalian central nervous system, including topics on their identity, niche, function, plasticity, and emerging roles in cancer and regenerative medicine.
文摘目的:依据全球营养不良领导倡议(the global leadership initiative on malnutrition,GLIM)的营养不良诊断标准,分析成年结直肠癌住院患者营养不良与临床结局的相关性。方法:回顾性分析2019年6月—2020年12月惠州市中心人民医院确诊医治的170例成年结直肠癌住院患者临床资料,入院48 h内均接受营养状况评估,参考GLIM标准,统计全体患者营养不良发生情况,通过logistic回归分析筛选成年结直肠癌住院患者并发症发生的相关因素。结果:(1)本组170例患者中,GLIM标准评估结果显示,57例患者营养良好(33.53%),将其归在无营养不良组;113例患者存在营养不良(66.47%),将其归在营养不良组。其中无营养不良组男性、女性分别为31例、26例;年龄48~76岁,平均(62.48±5.68)岁。营养不良组男性、女性分别为62例、51例;年龄49~74岁,平均(62.25±5.82)岁。(2)客观指标比较可知,在营养风险筛查-2002评分、患者主观整体评估量表评分、血前白蛋白、血白蛋白水平、体重指数、上臂围、三头肌皮褶厚度、上臂肌围方面,营养不良组与无营养不良组之间差异均有统计学意义(P<0.05)。(3)临床结局指标比较可知,在术后并发症、住院时间、住院费用、无计划30 d内返院方面,营养不良组与无营养不良组之间差异均有统计学意义(P<0.05)。(4)logistic回归分析可知,营养不良为成年结直肠癌住院患者并发症发生的独立相关因素(P<0.05)。结论:成年结直肠癌住院患者营养不良会提高并发症风险,延长住院时间。